sys/dev/disk/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  * $FreeBSD: src/sys/dev/mpt/mpt_cam.c,v 1.68 2009/07/02 00:43:10 delphij Exp $
  97  */
  98
  99 #include <dev/disk/mpt/mpt.h>
 100 #include <dev/disk/mpt/mpt_cam.h>
 101 #include <dev/disk/mpt/mpt_raid.h>
 102
 103 #include "dev/disk/mpt/mpilib/mpi_ioc.h" /* XXX Fix Event Handling!!! */
 104 #include "dev/disk/mpt/mpilib/mpi_init.h"
 105 #include "dev/disk/mpt/mpilib/mpi_targ.h"
 106 #include "dev/disk/mpt/mpilib/mpi_fc.h"
 107 #include "dev/disk/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 || defined(__DragonFly__)
 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_devq_release(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             (unsigned)mpt->mpt_fcport_page0.WWNN.High,
 472             (unsigned)mpt->mpt_fcport_page0.WWNN.Low,
 473             (unsigned)mpt->mpt_fcport_page0.WWPN.High,
 474             (unsigned)mpt->mpt_fcport_page0.WWPN.Low,
 475             (unsigned)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 = kmalloc(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                 kfree(buffer, M_DEVBUF);
 636                 goto out;
 637         }
 638
 639         portinfo->num_phys = buffer->NumPhys;
 640         portinfo->phy_info = kmalloc(sizeof(*portinfo->phy_info) *
 641             portinfo->num_phys, M_DEVBUF, M_NOWAIT|M_ZERO);
 642         if (portinfo->phy_info == NULL) {
 643                 kfree(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         kfree(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 = kmalloc(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                 kfree(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         kfree(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 = kmalloc(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                 kfree(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         kfree(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 = kmalloc(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                 kfree(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                 kprintf("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                 kprintf("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                     (unsigned)mpt->mpt_port_page0.Capabilities,
 987                     (unsigned)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                     (unsigned)mpt->mpt_port_page1.Configuration,
 999                     (unsigned)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                     (unsigned)mpt->mpt_port_page2.PortFlags,
1010                     (unsigned)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,
1034                     (unsigned)mpt->mpt_dev_page0[i].NegotiatedParameters,
1035                     (unsigned)mpt->mpt_dev_page0[i].Information);
1036
1037                 rv = mpt_read_cur_cfg_page(mpt, i,
1038                     &mpt->mpt_dev_page1[i].Header, sizeof(*mpt->mpt_dev_page1),
1039                     FALSE, 5000);
1040                 if (rv) {
1041                         mpt_prt(mpt,
1042                             "cannot read SPI Target %d Device Page 1\n", i);
1043                         continue;
1044                 }
1045                 mpt2host_config_page_scsi_device_1(&mpt->mpt_dev_page1[i]);
1046                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1047                     "target %d page 1: Requested Params %x Configuration %x\n",
1048                     i,
1049                     (unsigned)mpt->mpt_dev_page1[i].RequestedParameters,
1050                     (unsigned)mpt->mpt_dev_page1[i].Configuration);
1051         }
1052         return (0);
1053 }
1054
1055 /*
1056  * Validate SPI configuration information.
1057  *
1058  * In particular, validate SPI Port Page 1.
1059  */
1060 static int
1061 mpt_set_initial_config_spi(struct mpt_softc *mpt)
1062 {
1063         int i, pp1val = ((1 << mpt->mpt_ini_id) << 16) | mpt->mpt_ini_id;
1064         int error;
1065
1066         mpt->mpt_disc_enable = 0xff;
1067         mpt->mpt_tag_enable = 0;
1068
1069         if (mpt->mpt_port_page1.Configuration != pp1val) {
1070                 CONFIG_PAGE_SCSI_PORT_1 tmp;
1071
1072                 mpt_prt(mpt, "SPI Port Page 1 Config value bad (%x)- should "
1073                              "be %x\n",
1074                         (unsigned)mpt->mpt_port_page1.Configuration,
1075                         (unsigned)pp1val);
1076                 tmp = mpt->mpt_port_page1;
1077                 tmp.Configuration = pp1val;
1078                 host2mpt_config_page_scsi_port_1(&tmp);
1079                 error = mpt_write_cur_cfg_page(mpt, 0,
1080                     &tmp.Header, sizeof(tmp), FALSE, 5000);
1081                 if (error) {
1082                         return (-1);
1083                 }
1084                 error = mpt_read_cur_cfg_page(mpt, 0,
1085                     &tmp.Header, sizeof(tmp), FALSE, 5000);
1086                 if (error) {
1087                         return (-1);
1088                 }
1089                 mpt2host_config_page_scsi_port_1(&tmp);
1090                 if (tmp.Configuration != pp1val) {
1091                         mpt_prt(mpt,
1092                             "failed to reset SPI Port Page 1 Config value\n");
1093                         return (-1);
1094                 }
1095                 mpt->mpt_port_page1 = tmp;
1096         }
1097
1098         /*
1099          * The purpose of this exercise is to get
1100          * all targets back to async/narrow.
1101          *
1102          * We skip this step if the BIOS has already negotiated
1103          * speeds with the targets.
1104          */
1105         i = mpt->mpt_port_page2.PortSettings &
1106             MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
1107         if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS) {
1108                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1109                     "honoring BIOS transfer negotiations\n");
1110         } else {
1111                 for (i = 0; i < 16; i++) {
1112                         mpt->mpt_dev_page1[i].RequestedParameters = 0;
1113                         mpt->mpt_dev_page1[i].Configuration = 0;
1114                         (void) mpt_update_spi_config(mpt, i);
1115                 }
1116         }
1117         return (0);
1118 }
1119
1120 int
1121 mpt_cam_enable(struct mpt_softc *mpt)
1122 {
1123         int error;
1124
1125         MPT_LOCK(mpt);
1126
1127         error = EIO;
1128         if (mpt->is_fc) {
1129                 if (mpt_read_config_info_fc(mpt)) {
1130                         goto out;
1131                 }
1132                 if (mpt_set_initial_config_fc(mpt)) {
1133                         goto out;
1134                 }
1135         } else if (mpt->is_sas) {
1136                 if (mpt_read_config_info_sas(mpt)) {
1137                         goto out;
1138                 }
1139                 if (mpt_set_initial_config_sas(mpt)) {
1140                         goto out;
1141                 }
1142         } else if (mpt->is_spi) {
1143                 if (mpt_read_config_info_spi(mpt)) {
1144                         goto out;
1145                 }
1146                 if (mpt_set_initial_config_spi(mpt)) {
1147                         goto out;
1148                 }
1149         }
1150         error = 0;
1151
1152 out:
1153         MPT_UNLOCK(mpt);
1154         return (error);
1155 }
1156
1157 void
1158 mpt_cam_ready(struct mpt_softc *mpt)
1159 {
1160         /*
1161          * If we're in target mode, hang out resources now
1162          * so we don't cause the world to hang talking to us.
1163          */
1164         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
1165                 /*
1166                  * Try to add some target command resources
1167                  */
1168                 MPT_LOCK(mpt);
1169                 if (mpt_add_target_commands(mpt) == FALSE) {
1170                         mpt_prt(mpt, "failed to add target commands\n");
1171                 }
1172                 MPT_UNLOCK(mpt);
1173         }
1174         mpt->ready = 1;
1175 }
1176
1177 void
1178 mpt_cam_detach(struct mpt_softc *mpt)
1179 {
1180         mpt_handler_t handler;
1181
1182         MPT_LOCK(mpt);
1183         mpt->ready = 0;
1184         mpt_terminate_recovery_thread(mpt);
1185
1186         handler.reply_handler = mpt_scsi_reply_handler;
1187         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1188                                scsi_io_handler_id);
1189         handler.reply_handler = mpt_scsi_tmf_reply_handler;
1190         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1191                                scsi_tmf_handler_id);
1192         handler.reply_handler = mpt_fc_els_reply_handler;
1193         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1194                                fc_els_handler_id);
1195         handler.reply_handler = mpt_scsi_tgt_reply_handler;
1196         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1197                                mpt->scsi_tgt_handler_id);
1198         handler.reply_handler = mpt_sata_pass_reply_handler;
1199         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1200                                sata_pass_handler_id);
1201
1202         if (mpt->tmf_req != NULL) {
1203                 mpt->tmf_req->state = REQ_STATE_ALLOCATED;
1204                 mpt_free_request(mpt, mpt->tmf_req);
1205                 mpt->tmf_req = NULL;
1206         }
1207         if (mpt->sas_portinfo != NULL) {
1208                 kfree(mpt->sas_portinfo, M_DEVBUF);
1209                 mpt->sas_portinfo = NULL;
1210         }
1211         MPT_UNLOCK(mpt);
1212
1213         if (mpt->sim != NULL) {
1214                 xpt_free_path(mpt->path);
1215                 xpt_bus_deregister(cam_sim_path(mpt->sim));
1216                 cam_sim_free(mpt->sim);
1217                 mpt->sim = NULL;
1218         }
1219
1220         if (mpt->phydisk_sim != NULL) {
1221                 xpt_free_path(mpt->phydisk_path);
1222                 xpt_bus_deregister(cam_sim_path(mpt->phydisk_sim));
1223                 cam_sim_free(mpt->phydisk_sim);
1224                 mpt->phydisk_sim = NULL;
1225         }
1226 }
1227
1228 /* This routine is used after a system crash to dump core onto the swap device.
1229  */
1230 static void
1231 mpt_poll(struct cam_sim *sim)
1232 {
1233         struct mpt_softc *mpt;
1234
1235         mpt = (struct mpt_softc *)cam_sim_softc(sim);
1236         mpt_intr(mpt);
1237 }
1238
1239 /*
1240  * Watchdog timeout routine for SCSI requests.
1241  */
1242 static void
1243 mpt_timeout(void *arg)
1244 {
1245         union ccb        *ccb;
1246         struct mpt_softc *mpt;
1247         request_t        *req;
1248
1249         ccb = (union ccb *)arg;
1250         mpt = ccb->ccb_h.ccb_mpt_ptr;
1251
1252         MPT_LOCK(mpt);
1253         req = ccb->ccb_h.ccb_req_ptr;
1254         mpt_prt(mpt, "request %p:%u timed out for ccb %p (req->ccb %p)\n", req,
1255             req->serno, ccb, req->ccb);
1256 /* XXX: WHAT ARE WE TRYING TO DO HERE? */
1257         if ((req->state & REQ_STATE_QUEUED) == REQ_STATE_QUEUED) {
1258                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
1259                 TAILQ_INSERT_TAIL(&mpt->request_timeout_list, req, links);
1260                 req->state |= REQ_STATE_TIMEDOUT;
1261                 mpt_wakeup_recovery_thread(mpt);
1262         }
1263         MPT_UNLOCK(mpt);
1264 }
1265
1266 /*
1267  * Callback routine from "bus_dmamap_load" or, in simple cases, called directly.
1268  *
1269  * Takes a list of physical segments and builds the SGL for SCSI IO command
1270  * and forwards the commard to the IOC after one last check that CAM has not
1271  * aborted the transaction.
1272  */
1273 static void
1274 mpt_execute_req_a64(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1275 {
1276         request_t *req, *trq;
1277         char *mpt_off;
1278         union ccb *ccb;
1279         struct mpt_softc *mpt;
1280         int seg, first_lim;
1281         uint32_t flags, nxt_off;
1282         void *sglp = NULL;
1283         MSG_REQUEST_HEADER *hdrp;
1284         SGE_SIMPLE64 *se;
1285         SGE_CHAIN64 *ce;
1286         int istgt = 0;
1287
1288         req = (request_t *)arg;
1289         ccb = req->ccb;
1290
1291         mpt = ccb->ccb_h.ccb_mpt_ptr;
1292         req = ccb->ccb_h.ccb_req_ptr;
1293
1294         hdrp = req->req_vbuf;
1295         mpt_off = req->req_vbuf;
1296
1297         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1298                 error = EFBIG;
1299         }
1300
1301         if (error == 0) {
1302                 switch (hdrp->Function) {
1303                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1304                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1305                         istgt = 0;
1306                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1307                         break;
1308                 case MPI_FUNCTION_TARGET_ASSIST:
1309                         istgt = 1;
1310                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1311                         break;
1312                 default:
1313                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req_a64\n",
1314                             hdrp->Function);
1315                         error = EINVAL;
1316                         break;
1317                 }
1318         }
1319
1320         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1321                 error = EFBIG;
1322                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1323                     nseg, mpt->max_seg_cnt);
1324         }
1325
1326 bad:
1327         if (error != 0) {
1328                 if (error != EFBIG && error != ENOMEM) {
1329                         mpt_prt(mpt, "mpt_execute_req_a64: err %d\n", error);
1330                 }
1331                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1332                         cam_status status;
1333                         mpt_freeze_ccb(ccb);
1334                         if (error == EFBIG) {
1335                                 status = CAM_REQ_TOO_BIG;
1336                         } else if (error == ENOMEM) {
1337                                 if (mpt->outofbeer == 0) {
1338                                         mpt->outofbeer = 1;
1339                                         xpt_freeze_simq(mpt->sim, 1);
1340                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1341                                             "FREEZEQ\n");
1342                                 }
1343                                 status = CAM_REQUEUE_REQ;
1344                         } else {
1345                                 status = CAM_REQ_CMP_ERR;
1346                         }
1347                         mpt_set_ccb_status(ccb, status);
1348                 }
1349                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1350                         request_t *cmd_req =
1351                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1352                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1353                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1354                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1355                 }
1356                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1357                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1358                 xpt_done(ccb);
1359                 CAMLOCK_2_MPTLOCK(mpt);
1360                 mpt_free_request(mpt, req);
1361                 MPTLOCK_2_CAMLOCK(mpt);
1362                 return;
1363         }
1364
1365         /*
1366          * No data to transfer?
1367          * Just make a single simple SGL with zero length.
1368          */
1369
1370         if (mpt->verbose >= MPT_PRT_DEBUG) {
1371                 int tidx = ((char *)sglp) - mpt_off;
1372                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1373         }
1374
1375         if (nseg == 0) {
1376                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1377                 MPI_pSGE_SET_FLAGS(se1,
1378                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1379                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1380                 se1->FlagsLength = htole32(se1->FlagsLength);
1381                 goto out;
1382         }
1383
1384
1385         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1386         if (istgt == 0) {
1387                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1388                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1389                 }
1390         } else {
1391                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1392                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1393                 }
1394         }
1395
1396         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1397                 bus_dmasync_op_t op;
1398                 if (istgt == 0) {
1399                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1400                                 op = BUS_DMASYNC_PREREAD;
1401                         } else {
1402                                 op = BUS_DMASYNC_PREWRITE;
1403                         }
1404                 } else {
1405                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1406                                 op = BUS_DMASYNC_PREWRITE;
1407                         } else {
1408                                 op = BUS_DMASYNC_PREREAD;
1409                         }
1410                 }
1411                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1412         }
1413
1414         /*
1415          * Okay, fill in what we can at the end of the command frame.
1416          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1417          * the command frame.
1418          *
1419          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1420          * SIMPLE64 pointers and start doing CHAIN64 entries after
1421          * that.
1422          */
1423
1424         if (nseg < MPT_NSGL_FIRST(mpt)) {
1425                 first_lim = nseg;
1426         } else {
1427                 /*
1428                  * Leave room for CHAIN element
1429                  */
1430                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1431         }
1432
1433         se = (SGE_SIMPLE64 *) sglp;
1434         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1435                 uint32_t tf;
1436
1437                 memset(se, 0, sizeof (*se));
1438                 se->Address.Low = htole32(dm_segs->ds_addr & 0xffffffff);
1439                 if (sizeof(bus_addr_t) > 4) {
1440                         se->Address.High =
1441                             htole32(((uint64_t)dm_segs->ds_addr) >> 32);
1442                 }
1443                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1444                 tf = flags;
1445                 if (seg == first_lim - 1) {
1446                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1447                 }
1448                 if (seg == nseg - 1) {
1449                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1450                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1451                 }
1452                 MPI_pSGE_SET_FLAGS(se, tf);
1453                 se->FlagsLength = htole32(se->FlagsLength);
1454         }
1455
1456         if (seg == nseg) {
1457                 goto out;
1458         }
1459
1460         /*
1461          * Tell the IOC where to find the first chain element.
1462          */
1463         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1464         nxt_off = MPT_RQSL(mpt);
1465         trq = req;
1466
1467         /*
1468          * Make up the rest of the data segments out of a chain element
1469          * (contiained in the current request frame) which points to
1470          * SIMPLE64 elements in the next request frame, possibly ending
1471          * with *another* chain element (if there's more).
1472          */
1473         while (seg < nseg) {
1474                 int this_seg_lim;
1475                 uint32_t tf, cur_off;
1476                 bus_addr_t chain_list_addr;
1477
1478                 /*
1479                  * Point to the chain descriptor. Note that the chain
1480                  * descriptor is at the end of the *previous* list (whether
1481                  * chain or simple).
1482                  */
1483                 ce = (SGE_CHAIN64 *) se;
1484
1485                 /*
1486                  * Before we change our current pointer, make  sure we won't
1487                  * overflow the request area with this frame. Note that we
1488                  * test against 'greater than' here as it's okay in this case
1489                  * to have next offset be just outside the request area.
1490                  */
1491                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1492                         nxt_off = MPT_REQUEST_AREA;
1493                         goto next_chain;
1494                 }
1495
1496                 /*
1497                  * Set our SGE element pointer to the beginning of the chain
1498                  * list and update our next chain list offset.
1499                  */
1500                 se = (SGE_SIMPLE64 *) &mpt_off[nxt_off];
1501                 cur_off = nxt_off;
1502                 nxt_off += MPT_RQSL(mpt);
1503
1504                 /*
1505                  * Now initialized the chain descriptor.
1506                  */
1507                 memset(ce, 0, sizeof (*ce));
1508
1509                 /*
1510                  * Get the physical address of the chain list.
1511                  */
1512                 chain_list_addr = trq->req_pbuf;
1513                 chain_list_addr += cur_off;
1514                 if (sizeof (bus_addr_t) > 4) {
1515                         ce->Address.High =
1516                             htole32(((uint64_t)chain_list_addr) >> 32);
1517                 }
1518                 ce->Address.Low = htole32(chain_list_addr & 0xffffffff);
1519                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT |
1520                             MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1521
1522                 /*
1523                  * If we have more than a frame's worth of segments left,
1524                  * set up the chain list to have the last element be another
1525                  * chain descriptor.
1526                  */
1527                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1528                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1529                         /*
1530                          * The length of the chain is the length in bytes of the
1531                          * number of segments plus the next chain element.
1532                          *
1533                          * The next chain descriptor offset is the length,
1534                          * in words, of the number of segments.
1535                          */
1536                         ce->Length = (this_seg_lim - seg) *
1537                             sizeof (SGE_SIMPLE64);
1538                         ce->NextChainOffset = ce->Length >> 2;
1539                         ce->Length += sizeof (SGE_CHAIN64);
1540                 } else {
1541                         this_seg_lim = nseg;
1542                         ce->Length = (this_seg_lim - seg) *
1543                             sizeof (SGE_SIMPLE64);
1544                 }
1545                 ce->Length = htole16(ce->Length);
1546
1547                 /*
1548                  * Fill in the chain list SGE elements with our segment data.
1549                  *
1550                  * If we're the last element in this chain list, set the last
1551                  * element flag. If we're the completely last element period,
1552                  * set the end of list and end of buffer flags.
1553                  */
1554                 while (seg < this_seg_lim) {
1555                         memset(se, 0, sizeof (*se));
1556                         se->Address.Low = htole32(dm_segs->ds_addr &
1557                             0xffffffff);
1558                         if (sizeof (bus_addr_t) > 4) {
1559                                 se->Address.High =
1560                                     htole32(((uint64_t)dm_segs->ds_addr) >> 32);
1561                         }
1562                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1563                         tf = flags;
1564                         if (seg ==  this_seg_lim - 1) {
1565                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1566                         }
1567                         if (seg == nseg - 1) {
1568                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1569                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1570                         }
1571                         MPI_pSGE_SET_FLAGS(se, tf);
1572                         se->FlagsLength = htole32(se->FlagsLength);
1573                         se++;
1574                         seg++;
1575                         dm_segs++;
1576                 }
1577
1578     next_chain:
1579                 /*
1580                  * If we have more segments to do and we've used up all of
1581                  * the space in a request area, go allocate another one
1582                  * and chain to that.
1583                  */
1584                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1585                         request_t *nrq;
1586
1587                         CAMLOCK_2_MPTLOCK(mpt);
1588                         nrq = mpt_get_request(mpt, FALSE);
1589                         MPTLOCK_2_CAMLOCK(mpt);
1590
1591                         if (nrq == NULL) {
1592                                 error = ENOMEM;
1593                                 goto bad;
1594                         }
1595
1596                         /*
1597                          * Append the new request area on the tail of our list.
1598                          */
1599                         if ((trq = req->chain) == NULL) {
1600                                 req->chain = nrq;
1601                         } else {
1602                                 while (trq->chain != NULL) {
1603                                         trq = trq->chain;
1604                                 }
1605                                 trq->chain = nrq;
1606                         }
1607                         trq = nrq;
1608                         mpt_off = trq->req_vbuf;
1609                         if (mpt->verbose >= MPT_PRT_DEBUG) {
1610                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
1611                         }
1612                         nxt_off = 0;
1613                 }
1614         }
1615 out:
1616
1617         /*
1618          * Last time we need to check if this CCB needs to be aborted.
1619          */
1620         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1621                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1622                         request_t *cmd_req =
1623                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1624                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1625                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1626                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1627                 }
1628                 mpt_prt(mpt,
1629                     "mpt_execute_req_a64: I/O cancelled (status 0x%x)\n",
1630                     ccb->ccb_h.status & CAM_STATUS_MASK);
1631                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
1632                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
1633                 }
1634                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1635                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1636                 xpt_done(ccb);
1637                 CAMLOCK_2_MPTLOCK(mpt);
1638                 mpt_free_request(mpt, req);
1639                 MPTLOCK_2_CAMLOCK(mpt);
1640                 return;
1641         }
1642
1643         ccb->ccb_h.status |= CAM_SIM_QUEUED;
1644         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
1645                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
1646                     mpt_timeout, ccb);
1647         }
1648         if (mpt->verbose > MPT_PRT_DEBUG) {
1649                 int nc = 0;
1650                 mpt_print_request(req->req_vbuf);
1651                 for (trq = req->chain; trq; trq = trq->chain) {
1652                         kprintf("  Additional Chain Area %d\n", nc++);
1653                         mpt_dump_sgl(trq->req_vbuf, 0);
1654                 }
1655         }
1656
1657         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1658                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1659                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
1660 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
1661                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
1662                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
1663                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
1664                 } else {
1665                         tgt->state = TGT_STATE_MOVING_DATA;
1666                 }
1667 #else
1668                 tgt->state = TGT_STATE_MOVING_DATA;
1669 #endif
1670         }
1671         CAMLOCK_2_MPTLOCK(mpt);
1672         mpt_send_cmd(mpt, req);
1673         MPTLOCK_2_CAMLOCK(mpt);
1674 }
1675
1676 static void
1677 mpt_execute_req(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1678 {
1679         request_t *req, *trq;
1680         char *mpt_off;
1681         union ccb *ccb;
1682         struct mpt_softc *mpt;
1683         int seg, first_lim;
1684         uint32_t flags, nxt_off;
1685         void *sglp = NULL;
1686         MSG_REQUEST_HEADER *hdrp;
1687         SGE_SIMPLE32 *se;
1688         SGE_CHAIN32 *ce;
1689         int istgt = 0;
1690
1691         req = (request_t *)arg;
1692         ccb = req->ccb;
1693
1694         mpt = ccb->ccb_h.ccb_mpt_ptr;
1695         req = ccb->ccb_h.ccb_req_ptr;
1696
1697         hdrp = req->req_vbuf;
1698         mpt_off = req->req_vbuf;
1699
1700
1701         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1702                 error = EFBIG;
1703         }
1704
1705         if (error == 0) {
1706                 switch (hdrp->Function) {
1707                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1708                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1709                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1710                         break;
1711                 case MPI_FUNCTION_TARGET_ASSIST:
1712                         istgt = 1;
1713                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1714                         break;
1715                 default:
1716                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req\n",
1717                             hdrp->Function);
1718                         error = EINVAL;
1719                         break;
1720                 }
1721         }
1722
1723         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1724                 error = EFBIG;
1725                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1726                     nseg, mpt->max_seg_cnt);
1727         }
1728
1729 bad:
1730         if (error != 0) {
1731                 if (error != EFBIG && error != ENOMEM) {
1732                         mpt_prt(mpt, "mpt_execute_req: err %d\n", error);
1733                 }
1734                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1735                         cam_status status;
1736                         mpt_freeze_ccb(ccb);
1737                         if (error == EFBIG) {
1738                                 status = CAM_REQ_TOO_BIG;
1739                         } else if (error == ENOMEM) {
1740                                 if (mpt->outofbeer == 0) {
1741                                         mpt->outofbeer = 1;
1742                                         xpt_freeze_simq(mpt->sim, 1);
1743                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1744                                             "FREEZEQ\n");
1745                                 }
1746                                 status = CAM_REQUEUE_REQ;
1747                         } else {
1748                                 status = CAM_REQ_CMP_ERR;
1749                         }
1750                         mpt_set_ccb_status(ccb, status);
1751                 }
1752                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1753                         request_t *cmd_req =
1754                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1755                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1756                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1757                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1758                 }
1759                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1760                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1761                 xpt_done(ccb);
1762                 CAMLOCK_2_MPTLOCK(mpt);
1763                 mpt_free_request(mpt, req);
1764                 MPTLOCK_2_CAMLOCK(mpt);
1765                 return;
1766         }
1767
1768         /*
1769          * No data to transfer?
1770          * Just make a single simple SGL with zero length.
1771          */
1772
1773         if (mpt->verbose >= MPT_PRT_DEBUG) {
1774                 int tidx = ((char *)sglp) - mpt_off;
1775                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1776         }
1777
1778         if (nseg == 0) {
1779                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1780                 MPI_pSGE_SET_FLAGS(se1,
1781                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1782                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1783                 se1->FlagsLength = htole32(se1->FlagsLength);
1784                 goto out;
1785         }
1786
1787
1788         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
1789         if (istgt == 0) {
1790                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1791                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1792                 }
1793         } else {
1794                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1795                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1796                 }
1797         }
1798
1799         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1800                 bus_dmasync_op_t op;
1801                 if (istgt) {
1802                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1803                                 op = BUS_DMASYNC_PREREAD;
1804                         } else {
1805                                 op = BUS_DMASYNC_PREWRITE;
1806                         }
1807                 } else {
1808                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1809                                 op = BUS_DMASYNC_PREWRITE;
1810                         } else {
1811                                 op = BUS_DMASYNC_PREREAD;
1812                         }
1813                 }
1814                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1815         }
1816
1817         /*
1818          * Okay, fill in what we can at the end of the command frame.
1819          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1820          * the command frame.
1821          *
1822          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1823          * SIMPLE32 pointers and start doing CHAIN32 entries after
1824          * that.
1825          */
1826
1827         if (nseg < MPT_NSGL_FIRST(mpt)) {
1828                 first_lim = nseg;
1829         } else {
1830                 /*
1831                  * Leave room for CHAIN element
1832                  */
1833                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1834         }
1835
1836         se = (SGE_SIMPLE32 *) sglp;
1837         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1838                 uint32_t tf;
1839
1840                 memset(se, 0,sizeof (*se));
1841                 se->Address = htole32(dm_segs->ds_addr);
1842
1843
1844
1845                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1846                 tf = flags;
1847                 if (seg == first_lim - 1) {
1848                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1849                 }
1850                 if (seg == nseg - 1) {
1851                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1852                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1853                 }
1854                 MPI_pSGE_SET_FLAGS(se, tf);
1855                 se->FlagsLength = htole32(se->FlagsLength);
1856         }
1857
1858         if (seg == nseg) {
1859                 goto out;
1860         }
1861
1862         /*
1863          * Tell the IOC where to find the first chain element.
1864          */
1865         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1866         nxt_off = MPT_RQSL(mpt);
1867         trq = req;
1868
1869         /*
1870          * Make up the rest of the data segments out of a chain element
1871          * (contiained in the current request frame) which points to
1872          * SIMPLE32 elements in the next request frame, possibly ending
1873          * with *another* chain element (if there's more).
1874          */
1875         while (seg < nseg) {
1876                 int this_seg_lim;
1877                 uint32_t tf, cur_off;
1878                 bus_addr_t chain_list_addr;
1879
1880                 /*
1881                  * Point to the chain descriptor. Note that the chain
1882                  * descriptor is at the end of the *previous* list (whether
1883                  * chain or simple).
1884                  */
1885                 ce = (SGE_CHAIN32 *) se;
1886
1887                 /*
1888                  * Before we change our current pointer, make  sure we won't
1889                  * overflow the request area with this frame. Note that we
1890                  * test against 'greater than' here as it's okay in this case
1891                  * to have next offset be just outside the request area.
1892                  */
1893                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1894                         nxt_off = MPT_REQUEST_AREA;
1895                         goto next_chain;
1896                 }
1897
1898                 /*
1899                  * Set our SGE element pointer to the beginning of the chain
1900                  * list and update our next chain list offset.
1901                  */
1902                 se = (SGE_SIMPLE32 *) &mpt_off[nxt_off];
1903                 cur_off = nxt_off;
1904                 nxt_off += MPT_RQSL(mpt);
1905
1906                 /*
1907                  * Now initialized the chain descriptor.
1908                  */
1909                 memset(ce, 0, sizeof (*ce));
1910
1911                 /*
1912                  * Get the physical address of the chain list.
1913                  */
1914                 chain_list_addr = trq->req_pbuf;
1915                 chain_list_addr += cur_off;
1916
1917
1918
1919                 ce->Address = htole32(chain_list_addr);
1920                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
1921
1922
1923                 /*
1924                  * If we have more than a frame's worth of segments left,
1925                  * set up the chain list to have the last element be another
1926                  * chain descriptor.
1927                  */
1928                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1929                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1930                         /*
1931                          * The length of the chain is the length in bytes of the
1932                          * number of segments plus the next chain element.
1933                          *
1934                          * The next chain descriptor offset is the length,
1935                          * in words, of the number of segments.
1936                          */
1937                         ce->Length = (this_seg_lim - seg) *
1938                             sizeof (SGE_SIMPLE32);
1939                         ce->NextChainOffset = ce->Length >> 2;
1940                         ce->Length += sizeof (SGE_CHAIN32);
1941                 } else {
1942                         this_seg_lim = nseg;
1943                         ce->Length = (this_seg_lim - seg) *
1944                             sizeof (SGE_SIMPLE32);
1945                 }
1946                 ce->Length = htole16(ce->Length);
1947
1948                 /*
1949                  * Fill in the chain list SGE elements with our segment data.
1950                  *
1951                  * If we're the last element in this chain list, set the last
1952                  * element flag. If we're the completely last element period,
1953                  * set the end of list and end of buffer flags.
1954                  */
1955                 while (seg < this_seg_lim) {
1956                         memset(se, 0, sizeof (*se));
1957                         se->Address = htole32(dm_segs->ds_addr);
1958
1959
1960
1961
1962                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1963                         tf = flags;
1964                         if (seg ==  this_seg_lim - 1) {
1965                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1966                         }
1967                         if (seg == nseg - 1) {
1968                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1969                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1970                         }
1971                         MPI_pSGE_SET_FLAGS(se, tf);
1972                         se->FlagsLength = htole32(se->FlagsLength);
1973                         se++;
1974                         seg++;
1975                         dm_segs++;
1976                 }
1977
1978     next_chain:
1979                 /*
1980                  * If we have more segments to do and we've used up all of
1981                  * the space in a request area, go allocate another one
1982                  * and chain to that.
1983                  */
1984                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1985                         request_t *nrq;
1986
1987                         CAMLOCK_2_MPTLOCK(mpt);
1988                         nrq = mpt_get_request(mpt, FALSE);
1989                         MPTLOCK_2_CAMLOCK(mpt);
1990
1991                         if (nrq == NULL) {
1992                                 error = ENOMEM;
1993                                 goto bad;
1994                         }
1995
1996                         /*
1997                          * Append the new request area on the tail of our list.
1998                          */
1999                         if ((trq = req->chain) == NULL) {
2000                                 req->chain = nrq;
2001                         } else {
2002                                 while (trq->chain != NULL) {
2003                                         trq = trq->chain;
2004                                 }
2005                                 trq->chain = nrq;
2006                         }
2007                         trq = nrq;
2008                         mpt_off = trq->req_vbuf;
2009                         if (mpt->verbose >= MPT_PRT_DEBUG) {
2010                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
2011                         }
2012                         nxt_off = 0;
2013                 }
2014         }
2015 out:
2016
2017         /*
2018          * Last time we need to check if this CCB needs to be aborted.
2019          */
2020         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2021                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2022                         request_t *cmd_req =
2023                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2024                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
2025                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
2026                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
2027                 }
2028                 mpt_prt(mpt,
2029                     "mpt_execute_req: I/O cancelled (status 0x%x)\n",
2030                     ccb->ccb_h.status & CAM_STATUS_MASK);
2031                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
2032                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2033                 }
2034                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2035                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
2036                 xpt_done(ccb);
2037                 CAMLOCK_2_MPTLOCK(mpt);
2038                 mpt_free_request(mpt, req);
2039                 MPTLOCK_2_CAMLOCK(mpt);
2040                 return;
2041         }
2042
2043         ccb->ccb_h.status |= CAM_SIM_QUEUED;
2044         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
2045                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
2046                     mpt_timeout, ccb);
2047         }
2048         if (mpt->verbose > MPT_PRT_DEBUG) {
2049                 int nc = 0;
2050                 mpt_print_request(req->req_vbuf);
2051                 for (trq = req->chain; trq; trq = trq->chain) {
2052                         kprintf("  Additional Chain Area %d\n", nc++);
2053                         mpt_dump_sgl(trq->req_vbuf, 0);
2054                 }
2055         }
2056
2057         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2058                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2059                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
2060 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
2061                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2062                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
2063                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
2064                 } else {
2065                         tgt->state = TGT_STATE_MOVING_DATA;
2066                 }
2067 #else
2068                 tgt->state = TGT_STATE_MOVING_DATA;
2069 #endif
2070         }
2071         CAMLOCK_2_MPTLOCK(mpt);
2072         mpt_send_cmd(mpt, req);
2073         MPTLOCK_2_CAMLOCK(mpt);
2074 }
2075
2076 static void
2077 mpt_start(struct cam_sim *sim, union ccb *ccb)
2078 {
2079         request_t *req;
2080         struct mpt_softc *mpt;
2081         MSG_SCSI_IO_REQUEST *mpt_req;
2082         struct ccb_scsiio *csio = &ccb->csio;
2083         struct ccb_hdr *ccbh = &ccb->ccb_h;
2084         bus_dmamap_callback_t *cb;
2085         target_id_t tgt;
2086         int raid_passthru;
2087
2088         /* Get the pointer for the physical addapter */
2089         mpt = ccb->ccb_h.ccb_mpt_ptr;
2090         raid_passthru = (sim == mpt->phydisk_sim);
2091
2092         CAMLOCK_2_MPTLOCK(mpt);
2093         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
2094                 if (mpt->outofbeer == 0) {
2095                         mpt->outofbeer = 1;
2096                         xpt_freeze_simq(mpt->sim, 1);
2097                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
2098                 }
2099                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2100                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
2101                 MPTLOCK_2_CAMLOCK(mpt);
2102                 xpt_done(ccb);
2103                 return;
2104         }
2105 #ifdef  INVARIANTS
2106         mpt_req_not_spcl(mpt, req, "mpt_start", __LINE__);
2107 #endif
2108         MPTLOCK_2_CAMLOCK(mpt);
2109
2110         if (sizeof (bus_addr_t) > 4) {
2111                 cb = mpt_execute_req_a64;
2112         } else {
2113                 cb = mpt_execute_req;
2114         }
2115
2116         /*
2117          * Link the ccb and the request structure so we can find
2118          * the other knowing either the request or the ccb
2119          */
2120         req->ccb = ccb;
2121         ccb->ccb_h.ccb_req_ptr = req;
2122
2123         /* Now we build the command for the IOC */
2124         mpt_req = req->req_vbuf;
2125         memset(mpt_req, 0, sizeof (MSG_SCSI_IO_REQUEST));
2126
2127         mpt_req->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2128         if (raid_passthru) {
2129                 mpt_req->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2130                 CAMLOCK_2_MPTLOCK(mpt);
2131                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
2132                         MPTLOCK_2_CAMLOCK(mpt);
2133                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2134                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
2135                         xpt_done(ccb);
2136                         return;
2137                 }
2138                 MPTLOCK_2_CAMLOCK(mpt);
2139                 mpt_req->Bus = 0;       /* we never set bus here */
2140         } else {
2141                 tgt = ccb->ccb_h.target_id;
2142                 mpt_req->Bus = 0;       /* XXX */
2143
2144         }
2145         mpt_req->SenseBufferLength =
2146                 (csio->sense_len < MPT_SENSE_SIZE) ?
2147                  csio->sense_len : MPT_SENSE_SIZE;
2148
2149         /*
2150          * We use the message context to find the request structure when we
2151          * Get the command completion interrupt from the IOC.
2152          */
2153         mpt_req->MsgContext = htole32(req->index | scsi_io_handler_id);
2154
2155         /* Which physical device to do the I/O on */
2156         mpt_req->TargetID = tgt;
2157
2158         /* We assume a single level LUN type */
2159         if (ccb->ccb_h.target_lun >= MPT_MAX_LUNS) {
2160                 mpt_req->LUN[0] = 0x40 | ((ccb->ccb_h.target_lun >> 8) & 0x3f);
2161                 mpt_req->LUN[1] = ccb->ccb_h.target_lun & 0xff;
2162         } else {
2163                 mpt_req->LUN[1] = ccb->ccb_h.target_lun;
2164         }
2165
2166         /* Set the direction of the transfer */
2167         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2168                 mpt_req->Control = MPI_SCSIIO_CONTROL_READ;
2169         } else if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2170                 mpt_req->Control = MPI_SCSIIO_CONTROL_WRITE;
2171         } else {
2172                 mpt_req->Control = MPI_SCSIIO_CONTROL_NODATATRANSFER;
2173         }
2174
2175         if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0) {
2176                 switch(ccb->csio.tag_action) {
2177                 case MSG_HEAD_OF_Q_TAG:
2178                         mpt_req->Control |= MPI_SCSIIO_CONTROL_HEADOFQ;
2179                         break;
2180                 case MSG_ACA_TASK:
2181                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ACAQ;
2182                         break;
2183                 case MSG_ORDERED_Q_TAG:
2184                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ORDEREDQ;
2185                         break;
2186                 case MSG_SIMPLE_Q_TAG:
2187                 default:
2188                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2189                         break;
2190                 }
2191         } else {
2192                 if (mpt->is_fc || mpt->is_sas) {
2193                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2194                 } else {
2195                         /* XXX No such thing for a target doing packetized. */
2196                         mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
2197                 }
2198         }
2199
2200         if (mpt->is_spi) {
2201                 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) {
2202                         mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT;
2203                 }
2204         }
2205         mpt_req->Control = htole32(mpt_req->Control);
2206
2207         /* Copy the scsi command block into place */
2208         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
2209                 bcopy(csio->cdb_io.cdb_ptr, mpt_req->CDB, csio->cdb_len);
2210         } else {
2211                 bcopy(csio->cdb_io.cdb_bytes, mpt_req->CDB, csio->cdb_len);
2212         }
2213
2214         mpt_req->CDBLength = csio->cdb_len;
2215         mpt_req->DataLength = htole32(csio->dxfer_len);
2216         mpt_req->SenseBufferLowAddr = htole32(req->sense_pbuf);
2217
2218         /*
2219          * Do a *short* print here if we're set to MPT_PRT_DEBUG
2220          */
2221         if (mpt->verbose == MPT_PRT_DEBUG) {
2222                 U32 df;
2223                 mpt_prt(mpt, "mpt_start: %s op 0x%x ",
2224                     (mpt_req->Function == MPI_FUNCTION_SCSI_IO_REQUEST)?
2225                     "SCSI_IO_REQUEST" : "SCSI_IO_PASSTHRU", mpt_req->CDB[0]);
2226                 df = mpt_req->Control & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
2227                 if (df != MPI_SCSIIO_CONTROL_NODATATRANSFER) {
2228                         mpt_prtc(mpt, "(%s %u byte%s ",
2229                             (df == MPI_SCSIIO_CONTROL_READ)?
2230                             "read" : "write",  csio->dxfer_len,
2231                             (csio->dxfer_len == 1)? ")" : "s)");
2232                 }
2233                 mpt_prtc(mpt, "tgt %u lun %u req %p:%u\n", tgt,
2234                     ccb->ccb_h.target_lun, req, req->serno);
2235         }
2236
2237         /*
2238          * If we have any data to send with this command map it into bus space.
2239          */
2240         if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2241                 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) {
2242                         /*
2243                          * We've been given a pointer to a single buffer.
2244                          */
2245                         if ((ccbh->flags & CAM_DATA_PHYS) == 0) {
2246                                 /*
2247                                  * Virtual address that needs to translated into
2248                                  * one or more physical address ranges.
2249                                  */
2250                                 int error;
2251                                 error = bus_dmamap_load(mpt->buffer_dmat,
2252                                     req->dmap, csio->data_ptr, csio->dxfer_len,
2253                                     cb, req, 0);
2254                                 if (error == EINPROGRESS) {
2255                                         /*
2256                                          * So as to maintain ordering,
2257                                          * freeze the controller queue
2258                                          * until our mapping is
2259                                          * returned.
2260                                          */
2261                                         xpt_freeze_simq(mpt->sim, 1);
2262                                         ccbh->status |= CAM_RELEASE_SIMQ;
2263                                 }
2264                         } else {
2265                                 /*
2266                                  * We have been given a pointer to single
2267                                  * physical buffer.
2268                                  */
2269                                 struct bus_dma_segment seg;
2270                                 seg.ds_addr =
2271                                     (bus_addr_t)(vm_offset_t)csio->data_ptr;
2272                                 seg.ds_len = csio->dxfer_len;
2273                                 (*cb)(req, &seg, 1, 0);
2274                         }
2275                 } else {
2276                         /*
2277                          * We have been given a list of addresses.
2278                          * This case could be easily supported but they are not
2279                          * currently generated by the CAM subsystem so there
2280                          * is no point in wasting the time right now.
2281                          */
2282                         struct bus_dma_segment *segs;
2283                         if ((ccbh->flags & CAM_SG_LIST_PHYS) == 0) {
2284                                 (*cb)(req, NULL, 0, EFAULT);
2285                         } else {
2286                                 /* Just use the segments provided */
2287                                 segs = (struct bus_dma_segment *)csio->data_ptr;
2288                                 (*cb)(req, segs, csio->sglist_cnt, 0);
2289                         }
2290                 }
2291         } else {
2292                 (*cb)(req, NULL, 0, 0);
2293         }
2294 }
2295
2296 static int
2297 mpt_bus_reset(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun,
2298     int sleep_ok)
2299 {
2300         int   error;
2301         uint16_t status;
2302         uint8_t response;
2303
2304         error = mpt_scsi_send_tmf(mpt,
2305             (tgt != CAM_TARGET_WILDCARD || lun != CAM_LUN_WILDCARD) ?
2306             MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET :
2307             MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
2308             mpt->is_fc ? MPI_SCSITASKMGMT_MSGFLAGS_LIP_RESET_OPTION : 0,
2309             0,  /* XXX How do I get the channel ID? */
2310             tgt != CAM_TARGET_WILDCARD ? tgt : 0,
2311             lun != CAM_LUN_WILDCARD ? lun : 0,
2312             0, sleep_ok);
2313
2314         if (error != 0) {
2315                 /*
2316                  * mpt_scsi_send_tmf hard resets on failure, so no
2317                  * need to do so here.
2318                  */
2319                 mpt_prt(mpt,
2320                     "mpt_bus_reset: mpt_scsi_send_tmf returned %d\n", error);
2321                 return (EIO);
2322         }
2323
2324         /* Wait for bus reset to be processed by the IOC. */
2325         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
2326             REQ_STATE_DONE, sleep_ok, 5000);
2327
2328         status = le16toh(mpt->tmf_req->IOCStatus);
2329         response = mpt->tmf_req->ResponseCode;
2330         mpt->tmf_req->state = REQ_STATE_FREE;
2331
2332         if (error) {
2333                 mpt_prt(mpt, "mpt_bus_reset: Reset timed-out. "
2334                     "Resetting controller.\n");
2335                 mpt_reset(mpt, TRUE);
2336                 return (ETIMEDOUT);
2337         }
2338
2339         if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
2340                 mpt_prt(mpt, "mpt_bus_reset: TMF IOC Status 0x%x. "
2341                     "Resetting controller.\n", status);
2342                 mpt_reset(mpt, TRUE);
2343                 return (EIO);
2344         }
2345
2346         if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
2347             response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
2348                 mpt_prt(mpt, "mpt_bus_reset: TMF Response 0x%x. "
2349                     "Resetting controller.\n", response);
2350                 mpt_reset(mpt, TRUE);
2351                 return (EIO);
2352         }
2353         return (0);
2354 }
2355
2356 static int
2357 mpt_fc_reset_link(struct mpt_softc *mpt, int dowait)
2358 {
2359         int r = 0;
2360         request_t *req;
2361         PTR_MSG_FC_PRIMITIVE_SEND_REQUEST fc;
2362
2363         req = mpt_get_request(mpt, FALSE);
2364         if (req == NULL) {
2365                 return (ENOMEM);
2366         }
2367         fc = req->req_vbuf;
2368         memset(fc, 0, sizeof(*fc));
2369         fc->SendFlags = MPI_FC_PRIM_SEND_FLAGS_RESET_LINK;
2370         fc->Function = MPI_FUNCTION_FC_PRIMITIVE_SEND;
2371         fc->MsgContext = htole32(req->index | fc_els_handler_id);
2372         mpt_send_cmd(mpt, req);
2373         if (dowait) {
2374                 r = mpt_wait_req(mpt, req, REQ_STATE_DONE,
2375                     REQ_STATE_DONE, FALSE, 60 * 1000);
2376                 if (r == 0) {
2377                         mpt_free_request(mpt, req);
2378                 }
2379         }
2380         return (r);
2381 }
2382
2383 static int
2384 mpt_cam_event(struct mpt_softc *mpt, request_t *req,
2385               MSG_EVENT_NOTIFY_REPLY *msg)
2386 {
2387         uint32_t data0, data1;
2388
2389         data0 = le32toh(msg->Data[0]);
2390         data1 = le32toh(msg->Data[1]);
2391         switch(msg->Event & 0xFF) {
2392         case MPI_EVENT_UNIT_ATTENTION:
2393                 mpt_prt(mpt, "UNIT ATTENTION: Bus: 0x%02x TargetID: 0x%02x\n",
2394                     (data0 >> 8) & 0xff, data0 & 0xff);
2395                 break;
2396
2397         case MPI_EVENT_IOC_BUS_RESET:
2398                 /* We generated a bus reset */
2399                 mpt_prt(mpt, "IOC Generated Bus Reset Port: %d\n",
2400                     (data0 >> 8) & 0xff);
2401                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2402                 break;
2403
2404         case MPI_EVENT_EXT_BUS_RESET:
2405                 /* Someone else generated a bus reset */
2406                 mpt_prt(mpt, "External Bus Reset Detected\n");
2407                 /*
2408                  * These replies don't return EventData like the MPI
2409                  * spec says they do
2410                  */
2411                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2412                 break;
2413
2414         case MPI_EVENT_RESCAN:
2415 #if __FreeBSD_version >= 600000
2416         {
2417                 union ccb *ccb;
2418                 uint32_t pathid;
2419                 /*
2420                  * In general this means a device has been added to the loop.
2421                  */
2422                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2423                 if (mpt->ready == 0) {
2424                         break;
2425                 }
2426                 if (mpt->phydisk_sim) {
2427                         pathid = cam_sim_path(mpt->phydisk_sim);
2428                 } else {
2429                         pathid = cam_sim_path(mpt->sim);
2430                 }
2431                 MPTLOCK_2_CAMLOCK(mpt);
2432                 /*
2433                  * Allocate a CCB, create a wildcard path for this bus,
2434                  * and schedule a rescan.
2435                  */
2436                 ccb = xpt_alloc_ccb_nowait();
2437                 if (ccb == NULL) {
2438                         mpt_prt(mpt, "unable to alloc CCB for rescan\n");
2439                         CAMLOCK_2_MPTLOCK(mpt);
2440                         break;
2441                 }
2442
2443                 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, pathid,
2444                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2445                         CAMLOCK_2_MPTLOCK(mpt);
2446                         mpt_prt(mpt, "unable to create path for rescan\n");
2447                         xpt_free_ccb(ccb);
2448                         break;
2449                 }
2450                 xpt_rescan(ccb);
2451                 CAMLOCK_2_MPTLOCK(mpt);
2452                 break;
2453         }
2454 #else
2455                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2456                 break;
2457 #endif
2458         case MPI_EVENT_LINK_STATUS_CHANGE:
2459                 mpt_prt(mpt, "Port %d: LinkState: %s\n",
2460                     (data1 >> 8) & 0xff,
2461                     ((data0 & 0xff) == 0)?  "Failed" : "Active");
2462                 break;
2463
2464         case MPI_EVENT_LOOP_STATE_CHANGE:
2465                 switch ((data0 >> 16) & 0xff) {
2466                 case 0x01:
2467                         mpt_prt(mpt,
2468                             "Port 0x%x: FC LinkEvent: LIP(%02x,%02x) "
2469                             "(Loop Initialization)\n",
2470                             (data1 >> 8) & 0xff,
2471                             (data0 >> 8) & 0xff,
2472                             (data0     ) & 0xff);
2473                         switch ((data0 >> 8) & 0xff) {
2474                         case 0xF7:
2475                                 if ((data0 & 0xff) == 0xF7) {
2476                                         mpt_prt(mpt, "Device needs AL_PA\n");
2477                                 } else {
2478                                         mpt_prt(mpt, "Device %02x doesn't like "
2479                                             "FC performance\n",
2480                                             data0 & 0xFF);
2481                                 }
2482                                 break;
2483                         case 0xF8:
2484                                 if ((data0 & 0xff) == 0xF7) {
2485                                         mpt_prt(mpt, "Device had loop failure "
2486                                             "at its receiver prior to acquiring"
2487                                             " AL_PA\n");
2488                                 } else {
2489                                         mpt_prt(mpt, "Device %02x detected loop"
2490                                             " failure at its receiver\n",
2491                                             data0 & 0xFF);
2492                                 }
2493                                 break;
2494                         default:
2495                                 mpt_prt(mpt, "Device %02x requests that device "
2496                                     "%02x reset itself\n",
2497                                     data0 & 0xFF,
2498                                     (data0 >> 8) & 0xFF);
2499                                 break;
2500                         }
2501                         break;
2502                 case 0x02:
2503                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2504                             "LPE(%02x,%02x) (Loop Port Enable)\n",
2505                             (data1 >> 8) & 0xff, /* Port */
2506                             (data0 >>  8) & 0xff, /* Character 3 */
2507                             (data0      ) & 0xff  /* Character 4 */);
2508                         break;
2509                 case 0x03:
2510                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2511                             "LPB(%02x,%02x) (Loop Port Bypass)\n",
2512                             (data1 >> 8) & 0xff, /* Port */
2513                             (data0 >> 8) & 0xff, /* Character 3 */
2514                             (data0     ) & 0xff  /* Character 4 */);
2515                         break;
2516                 default:
2517                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: Unknown "
2518                             "FC event (%02x %02x %02x)\n",
2519                             (data1 >> 8) & 0xff, /* Port */
2520                             (data0 >> 16) & 0xff, /* Event */
2521                             (data0 >>  8) & 0xff, /* Character 3 */
2522                             (data0      ) & 0xff  /* Character 4 */);
2523                 }
2524                 break;
2525
2526         case MPI_EVENT_LOGOUT:
2527                 mpt_prt(mpt, "FC Logout Port: %d N_PortID: %02x\n",
2528                     (data1 >> 8) & 0xff, data0);
2529                 break;
2530         case MPI_EVENT_QUEUE_FULL:
2531         {
2532                 struct cam_sim *sim;
2533                 struct cam_path *tmppath;
2534                 struct ccb_relsim crs;
2535                 PTR_EVENT_DATA_QUEUE_FULL pqf;
2536                 lun_id_t lun_id;
2537
2538                 pqf = (PTR_EVENT_DATA_QUEUE_FULL)msg->Data;
2539                 pqf->CurrentDepth = le16toh(pqf->CurrentDepth);
2540                 mpt_prt(mpt, "QUEUE FULL EVENT: Bus 0x%02x Target 0x%02x Depth "
2541                     "%d\n", pqf->Bus, pqf->TargetID, pqf->CurrentDepth);
2542                 if (mpt->phydisk_sim) {
2543                         sim = mpt->phydisk_sim;
2544                 } else {
2545                         sim = mpt->sim;
2546                 }
2547                 MPTLOCK_2_CAMLOCK(mpt);
2548                 for (lun_id = 0; lun_id < MPT_MAX_LUNS; lun_id++) {
2549                         if (xpt_create_path(&tmppath, NULL, cam_sim_path(sim),
2550                             pqf->TargetID, lun_id) != CAM_REQ_CMP) {
2551                                 mpt_prt(mpt, "unable to create a path to send "
2552                                     "XPT_REL_SIMQ");
2553                                 CAMLOCK_2_MPTLOCK(mpt);
2554                                 break;
2555                         }
2556                         xpt_setup_ccb(&crs.ccb_h, tmppath, 5);
2557                         crs.ccb_h.func_code = XPT_REL_SIMQ;
2558                         crs.release_flags = RELSIM_ADJUST_OPENINGS;
2559                         crs.openings = pqf->CurrentDepth - 1;
2560                         xpt_action((union ccb *)&crs);
2561                         if (crs.ccb_h.status != CAM_REQ_CMP) {
2562                                 mpt_prt(mpt, "XPT_REL_SIMQ failed\n");
2563                         }
2564                         xpt_free_path(tmppath);
2565                 }
2566                 CAMLOCK_2_MPTLOCK(mpt);
2567                 break;
2568         }
2569         case MPI_EVENT_EVENT_CHANGE:
2570         case MPI_EVENT_INTEGRATED_RAID:
2571         case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
2572         case MPI_EVENT_SAS_SES:
2573                 break;
2574         default:
2575                 mpt_lprt(mpt, MPT_PRT_WARN, "mpt_cam_event: 0x%x\n",
2576                          (unsigned)msg->Event & 0xFF);
2577                 return (0);
2578         }
2579         return (1);
2580 }
2581
2582 /*
2583  * Reply path for all SCSI I/O requests, called from our
2584  * interrupt handler by extracting our handler index from
2585  * the MsgContext field of the reply from the IOC.
2586  *
2587  * This routine is optimized for the common case of a
2588  * completion without error.  All exception handling is
2589  * offloaded to non-inlined helper routines to minimize
2590  * cache footprint.
2591  */
2592 static int
2593 mpt_scsi_reply_handler(struct mpt_softc *mpt, request_t *req,
2594     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2595 {
2596         MSG_SCSI_IO_REQUEST *scsi_req;
2597         union ccb *ccb;
2598
2599         if (req->state == REQ_STATE_FREE) {
2600                 mpt_prt(mpt, "mpt_scsi_reply_handler: req already free\n");
2601                 return (TRUE);
2602         }
2603
2604         scsi_req = (MSG_SCSI_IO_REQUEST *)req->req_vbuf;
2605         ccb = req->ccb;
2606         if (ccb == NULL) {
2607                 mpt_prt(mpt, "mpt_scsi_reply_handler: req %p:%u with no ccb\n",
2608                     req, req->serno);
2609                 return (TRUE);
2610         }
2611
2612         mpt_req_untimeout(req, mpt_timeout, ccb);
2613         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2614
2615         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2616                 bus_dmasync_op_t op;
2617
2618                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
2619                         op = BUS_DMASYNC_POSTREAD;
2620                 else
2621                         op = BUS_DMASYNC_POSTWRITE;
2622                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
2623                 bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2624         }
2625
2626         if (reply_frame == NULL) {
2627                 /*
2628                  * Context only reply, completion without error status.
2629                  */
2630                 ccb->csio.resid = 0;
2631                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
2632                 ccb->csio.scsi_status = SCSI_STATUS_OK;
2633         } else {
2634                 mpt_scsi_reply_frame_handler(mpt, req, reply_frame);
2635         }
2636
2637         if (mpt->outofbeer) {
2638                 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2639                 mpt->outofbeer = 0;
2640                 mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
2641         }
2642         if (scsi_req->CDB[0] == INQUIRY && (scsi_req->CDB[1] & SI_EVPD) == 0) {
2643                 struct scsi_inquiry_data *iq =
2644                     (struct scsi_inquiry_data *)ccb->csio.data_ptr;
2645                 if (scsi_req->Function ==
2646                     MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
2647                         /*
2648                          * Fake out the device type so that only the
2649                          * pass-thru device will attach.
2650                          */
2651                         iq->device &= ~0x1F;
2652                         iq->device |= T_NODEVICE;
2653                 }
2654         }
2655         if (mpt->verbose == MPT_PRT_DEBUG) {
2656                 mpt_prt(mpt, "mpt_scsi_reply_handler: %p:%u complete\n",
2657                     req, req->serno);
2658         }
2659         KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
2660         MPTLOCK_2_CAMLOCK(mpt);
2661         xpt_done(ccb);
2662         CAMLOCK_2_MPTLOCK(mpt);
2663         if ((req->state & REQ_STATE_TIMEDOUT) == 0) {
2664                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2665         } else {
2666                 mpt_prt(mpt, "completing timedout/aborted req %p:%u\n",
2667                     req, req->serno);
2668                 TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
2669         }
2670         KASSERT((req->state & REQ_STATE_NEED_WAKEUP) == 0,
2671             ("CCB req needed wakeup"));
2672 #ifdef  INVARIANTS
2673         mpt_req_not_spcl(mpt, req, "mpt_scsi_reply_handler", __LINE__);
2674 #endif
2675         mpt_free_request(mpt, req);
2676         return (TRUE);
2677 }
2678
2679 static int
2680 mpt_scsi_tmf_reply_handler(struct mpt_softc *mpt, request_t *req,
2681     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2682 {
2683         MSG_SCSI_TASK_MGMT_REPLY *tmf_reply;
2684
2685         KASSERT(req == mpt->tmf_req, ("TMF Reply not using mpt->tmf_req"));
2686 #ifdef  INVARIANTS
2687         mpt_req_not_spcl(mpt, req, "mpt_scsi_tmf_reply_handler", __LINE__);
2688 #endif
2689         tmf_reply = (MSG_SCSI_TASK_MGMT_REPLY *)reply_frame;
2690         /* Record IOC Status and Response Code of TMF for any waiters. */
2691         req->IOCStatus = le16toh(tmf_reply->IOCStatus);
2692         req->ResponseCode = tmf_reply->ResponseCode;
2693
2694         mpt_lprt(mpt, MPT_PRT_DEBUG, "TMF complete: req %p:%u status 0x%x\n",
2695             req, req->serno, le16toh(tmf_reply->IOCStatus));
2696         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2697         if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
2698                 req->state |= REQ_STATE_DONE;
2699                 wakeup(req);
2700         } else {
2701                 mpt->tmf_req->state = REQ_STATE_FREE;
2702         }
2703         return (TRUE);
2704 }
2705
2706 /*
2707  * XXX: Move to definitions file
2708  */
2709 #define ELS     0x22
2710 #define FC4LS   0x32
2711 #define ABTS    0x81
2712 #define BA_ACC  0x84
2713
2714 #define LS_RJT  0x01
2715 #define LS_ACC  0x02
2716 #define PLOGI   0x03
2717 #define LOGO    0x05
2718 #define SRR     0x14
2719 #define PRLI    0x20
2720 #define PRLO    0x21
2721 #define ADISC   0x52
2722 #define RSCN    0x61
2723
2724 static void
2725 mpt_fc_els_send_response(struct mpt_softc *mpt, request_t *req,
2726     PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp, U8 length)
2727 {
2728         uint32_t fl;
2729         MSG_LINK_SERVICE_RSP_REQUEST tmp;
2730         PTR_MSG_LINK_SERVICE_RSP_REQUEST rsp;
2731
2732         /*
2733          * We are going to reuse the ELS request to send this response back.
2734          */
2735         rsp = &tmp;
2736         memset(rsp, 0, sizeof(*rsp));
2737
2738 #ifdef  USE_IMMEDIATE_LINK_DATA
2739         /*
2740          * Apparently the IMMEDIATE stuff doesn't seem to work.
2741          */
2742         rsp->RspFlags = LINK_SERVICE_RSP_FLAGS_IMMEDIATE;
2743 #endif
2744         rsp->RspLength = length;
2745         rsp->Function = MPI_FUNCTION_FC_LINK_SRVC_RSP;
2746         rsp->MsgContext = htole32(req->index | fc_els_handler_id);
2747
2748         /*
2749          * Copy over information from the original reply frame to
2750          * it's correct place in the response.
2751          */
2752         memcpy((U8 *)rsp + 0x0c, (U8 *)rp + 0x1c, 24);
2753
2754         /*
2755          * And now copy back the temporary area to the original frame.
2756          */
2757         memcpy(req->req_vbuf, rsp, sizeof (MSG_LINK_SERVICE_RSP_REQUEST));
2758         rsp = req->req_vbuf;
2759
2760 #ifdef  USE_IMMEDIATE_LINK_DATA
2761         memcpy((U8 *)&rsp->SGL, &((U8 *)req->req_vbuf)[MPT_RQSL(mpt)], length);
2762 #else
2763 {
2764         PTR_SGE_SIMPLE32 se = (PTR_SGE_SIMPLE32) &rsp->SGL;
2765         bus_addr_t paddr = req->req_pbuf;
2766         paddr += MPT_RQSL(mpt);
2767
2768         fl =
2769                 MPI_SGE_FLAGS_HOST_TO_IOC       |
2770                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
2771                 MPI_SGE_FLAGS_LAST_ELEMENT      |
2772                 MPI_SGE_FLAGS_END_OF_LIST       |
2773                 MPI_SGE_FLAGS_END_OF_BUFFER;
2774         fl <<= MPI_SGE_FLAGS_SHIFT;
2775         fl |= (length);
2776         se->FlagsLength = htole32(fl);
2777         se->Address = htole32((uint32_t) paddr);
2778 }
2779 #endif
2780
2781         /*
2782          * Send it on...
2783          */
2784         mpt_send_cmd(mpt, req);
2785 }
2786
2787 static int
2788 mpt_fc_els_reply_handler(struct mpt_softc *mpt, request_t *req,
2789     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2790 {
2791         PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp =
2792             (PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY) reply_frame;
2793         U8 rctl;
2794         U8 type;
2795         U8 cmd;
2796         U16 status = le16toh(reply_frame->IOCStatus);
2797         U32 *elsbuf;
2798         int ioindex;
2799         int do_refresh = TRUE;
2800
2801 #ifdef  INVARIANTS
2802         KASSERT(mpt_req_on_free_list(mpt, req) == 0,
2803             ("fc_els_reply_handler: req %p:%u for function %x on freelist!",
2804             req, req->serno, rp->Function));
2805         if (rp->Function != MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2806                 mpt_req_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2807         } else {
2808                 mpt_req_not_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2809         }
2810 #endif
2811         mpt_lprt(mpt, MPT_PRT_DEBUG,
2812             "FC_ELS Complete: req %p:%u, reply %p function %x\n",
2813             req, req->serno, reply_frame, reply_frame->Function);
2814
2815         if  (status != MPI_IOCSTATUS_SUCCESS) {
2816                 mpt_prt(mpt, "ELS REPLY STATUS 0x%x for Function %x\n",
2817                     status, reply_frame->Function);
2818                 if (status == MPI_IOCSTATUS_INVALID_STATE) {
2819                         /*
2820                          * XXX: to get around shutdown issue
2821                          */
2822                         mpt->disabled = 1;
2823                         return (TRUE);
2824                 }
2825                 return (TRUE);
2826         }
2827
2828         /*
2829          * If the function of a link service response, we recycle the
2830          * response to be a refresh for a new link service request.
2831          *
2832          * The request pointer is bogus in this case and we have to fetch
2833          * it based upon the TransactionContext.
2834          */
2835         if (rp->Function == MPI_FUNCTION_FC_LINK_SRVC_RSP) {
2836                 /* Freddie Uncle Charlie Katie */
2837                 /* We don't get the IOINDEX as part of the Link Svc Rsp */
2838                 for (ioindex = 0; ioindex < mpt->els_cmds_allocated; ioindex++)
2839                         if (mpt->els_cmd_ptrs[ioindex] == req) {
2840                                 break;
2841                         }
2842
2843                 KASSERT(ioindex < mpt->els_cmds_allocated,
2844                     ("can't find my mommie!"));
2845
2846                 /* remove from active list as we're going to re-post it */
2847                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2848                 req->state &= ~REQ_STATE_QUEUED;
2849                 req->state |= REQ_STATE_DONE;
2850                 mpt_fc_post_els(mpt, req, ioindex);
2851                 return (TRUE);
2852         }
2853
2854         if (rp->Function == MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2855                 /* remove from active list as we're done */
2856                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2857                 req->state &= ~REQ_STATE_QUEUED;
2858                 req->state |= REQ_STATE_DONE;
2859                 if (req->state & REQ_STATE_TIMEDOUT) {
2860                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2861                             "Sync Primitive Send Completed After Timeout\n");
2862                         mpt_free_request(mpt, req);
2863                 } else if ((req->state & REQ_STATE_NEED_WAKEUP) == 0) {
2864                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2865                             "Async Primitive Send Complete\n");
2866                         mpt_free_request(mpt, req);
2867                 } else {
2868                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2869                             "Sync Primitive Send Complete- Waking Waiter\n");
2870                         wakeup(req);
2871                 }
2872                 return (TRUE);
2873         }
2874
2875         if (rp->Function != MPI_FUNCTION_FC_LINK_SRVC_BUF_POST) {
2876                 mpt_prt(mpt, "unexpected ELS_REPLY: Function 0x%x Flags %x "
2877                     "Length %d Message Flags %x\n", rp->Function, rp->Flags,
2878                     rp->MsgLength, rp->MsgFlags);
2879                 return (TRUE);
2880         }
2881
2882         if (rp->MsgLength <= 5) {
2883                 /*
2884                  * This is just a ack of an original ELS buffer post
2885                  */
2886                 mpt_lprt(mpt, MPT_PRT_DEBUG,
2887                     "RECV'd ACK of FC_ELS buf post %p:%u\n", req, req->serno);
2888                 return (TRUE);
2889         }
2890
2891
2892         rctl = (le32toh(rp->Rctl_Did) & MPI_FC_RCTL_MASK) >> MPI_FC_RCTL_SHIFT;
2893         type = (le32toh(rp->Type_Fctl) & MPI_FC_TYPE_MASK) >> MPI_FC_TYPE_SHIFT;
2894
2895         elsbuf = &((U32 *)req->req_vbuf)[MPT_RQSL(mpt)/sizeof (U32)];
2896         cmd = be32toh(elsbuf[0]) >> 24;
2897
2898         if (rp->Flags & MPI_LS_BUF_POST_REPLY_FLAG_NO_RSP_NEEDED) {
2899                 mpt_lprt(mpt, MPT_PRT_ALWAYS, "ELS_REPLY: response unneeded\n");
2900                 return (TRUE);
2901         }
2902
2903         ioindex = le32toh(rp->TransactionContext);
2904         req = mpt->els_cmd_ptrs[ioindex];
2905
2906         if (rctl == ELS && type == 1) {
2907                 switch (cmd) {
2908                 case PRLI:
2909                         /*
2910                          * Send back a PRLI ACC
2911                          */
2912                         mpt_prt(mpt, "PRLI from 0x%08x%08x\n",
2913                             le32toh(rp->Wwn.PortNameHigh),
2914                             le32toh(rp->Wwn.PortNameLow));
2915                         elsbuf[0] = htobe32(0x02100014);
2916                         elsbuf[1] |= htobe32(0x00000100);
2917                         elsbuf[4] = htobe32(0x00000002);
2918                         if (mpt->role & MPT_ROLE_TARGET)
2919                                 elsbuf[4] |= htobe32(0x00000010);
2920                         if (mpt->role & MPT_ROLE_INITIATOR)
2921                                 elsbuf[4] |= htobe32(0x00000020);
2922                         /* remove from active list as we're done */
2923                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2924                         req->state &= ~REQ_STATE_QUEUED;
2925                         req->state |= REQ_STATE_DONE;
2926                         mpt_fc_els_send_response(mpt, req, rp, 20);
2927                         do_refresh = FALSE;
2928                         break;
2929                 case PRLO:
2930                         memset(elsbuf, 0, 5 * (sizeof (U32)));
2931                         elsbuf[0] = htobe32(0x02100014);
2932                         elsbuf[1] = htobe32(0x08000100);
2933                         mpt_prt(mpt, "PRLO from 0x%08x%08x\n",
2934                             le32toh(rp->Wwn.PortNameHigh),
2935                             le32toh(rp->Wwn.PortNameLow));
2936                         /* remove from active list as we're done */
2937                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2938                         req->state &= ~REQ_STATE_QUEUED;
2939                         req->state |= REQ_STATE_DONE;
2940                         mpt_fc_els_send_response(mpt, req, rp, 20);
2941                         do_refresh = FALSE;
2942                         break;
2943                 default:
2944                         mpt_prt(mpt, "ELS TYPE 1 COMMAND: %x\n", cmd);
2945                         break;
2946                 }
2947         } else if (rctl == ABTS && type == 0) {
2948                 uint16_t rx_id = le16toh(rp->Rxid);
2949                 uint16_t ox_id = le16toh(rp->Oxid);
2950                 request_t *tgt_req = NULL;
2951
2952                 mpt_prt(mpt,
2953                     "ELS: ABTS OX_ID 0x%x RX_ID 0x%x from 0x%08x%08x\n",
2954                     ox_id, rx_id, le32toh(rp->Wwn.PortNameHigh),
2955                     le32toh(rp->Wwn.PortNameLow));
2956                 if (rx_id >= mpt->mpt_max_tgtcmds) {
2957                         mpt_prt(mpt, "Bad RX_ID 0x%x\n", rx_id);
2958                 } else if (mpt->tgt_cmd_ptrs == NULL) {
2959                         mpt_prt(mpt, "No TGT CMD PTRS\n");
2960                 } else {
2961                         tgt_req = mpt->tgt_cmd_ptrs[rx_id];
2962                 }
2963                 if (tgt_req) {
2964                         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, tgt_req);
2965                         union ccb *ccb = tgt->ccb;
2966                         uint32_t ct_id;
2967
2968                         /*
2969                          * Check to make sure we have the correct command
2970                          * The reply descriptor in the target state should
2971                          * should contain an IoIndex that should match the
2972                          * RX_ID.
2973                          *
2974                          * It'd be nice to have OX_ID to crosscheck with
2975                          * as well.
2976                          */
2977                         ct_id = GET_IO_INDEX(tgt->reply_desc);
2978
2979                         if (ct_id != rx_id) {
2980                                 mpt_lprt(mpt, MPT_PRT_ERROR, "ABORT Mismatch: "
2981                                     "RX_ID received=0x%x; RX_ID in cmd=0x%x\n",
2982                                     rx_id, ct_id);
2983                                 goto skip;
2984                         }
2985
2986                         ccb = tgt->ccb;
2987                         if (ccb) {
2988                                 mpt_prt(mpt,
2989                                     "CCB (%p): lun %u flags %x status %x\n",
2990                                     ccb, ccb->ccb_h.target_lun,
2991                                     ccb->ccb_h.flags, ccb->ccb_h.status);
2992                         }
2993                         mpt_prt(mpt, "target state 0x%x resid %u xfrd %u rpwrd "
2994                             "%x nxfers %x\n", tgt->state,
2995                             tgt->resid, tgt->bytes_xfered, tgt->reply_desc,
2996                             tgt->nxfers);
2997   skip:
2998                         if (mpt_abort_target_cmd(mpt, tgt_req)) {
2999                                 mpt_prt(mpt, "unable to start TargetAbort\n");
3000                         }
3001                 } else {
3002                         mpt_prt(mpt, "no back pointer for RX_ID 0x%x\n", rx_id);
3003                 }
3004                 memset(elsbuf, 0, 5 * (sizeof (U32)));
3005                 elsbuf[0] = htobe32(0);
3006                 elsbuf[1] = htobe32((ox_id << 16) | rx_id);
3007                 elsbuf[2] = htobe32(0x000ffff);
3008                 /*
3009                  * Dork with the reply frame so that the reponse to it
3010                  * will be correct.
3011                  */
3012                 rp->Rctl_Did += ((BA_ACC - ABTS) << MPI_FC_RCTL_SHIFT);
3013                 /* remove from active list as we're done */
3014                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3015                 req->state &= ~REQ_STATE_QUEUED;
3016                 req->state |= REQ_STATE_DONE;
3017                 mpt_fc_els_send_response(mpt, req, rp, 12);
3018                 do_refresh = FALSE;
3019         } else {
3020                 mpt_prt(mpt, "ELS: RCTL %x TYPE %x CMD %x\n", rctl, type, cmd);
3021         }
3022         if (do_refresh == TRUE) {
3023                 /* remove from active list as we're done */
3024                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3025                 req->state &= ~REQ_STATE_QUEUED;
3026                 req->state |= REQ_STATE_DONE;
3027                 mpt_fc_post_els(mpt, req, ioindex);
3028         }
3029         return (TRUE);
3030 }
3031
3032 /*
3033  * Clean up all SCSI Initiator personality state in response
3034  * to a controller reset.
3035  */
3036 static void
3037 mpt_cam_ioc_reset(struct mpt_softc *mpt, int type)
3038 {
3039         /*
3040          * The pending list is already run down by
3041          * the generic handler.  Perform the same
3042          * operation on the timed out request list.
3043          */
3044         mpt_complete_request_chain(mpt, &mpt->request_timeout_list,
3045                                    MPI_IOCSTATUS_INVALID_STATE);
3046
3047         /*
3048          * XXX: We need to repost ELS and Target Command Buffers?
3049          */
3050
3051         /*
3052          * Inform the XPT that a bus reset has occurred.
3053          */
3054         xpt_async(AC_BUS_RESET, mpt->path, NULL);
3055 }
3056
3057 /*
3058  * Parse additional completion information in the reply
3059  * frame for SCSI I/O requests.
3060  */
3061 static int
3062 mpt_scsi_reply_frame_handler(struct mpt_softc *mpt, request_t *req,
3063                              MSG_DEFAULT_REPLY *reply_frame)
3064 {
3065         union ccb *ccb;
3066         MSG_SCSI_IO_REPLY *scsi_io_reply;
3067         u_int ioc_status;
3068         u_int sstate;
3069
3070         MPT_DUMP_REPLY_FRAME(mpt, reply_frame);
3071         KASSERT(reply_frame->Function == MPI_FUNCTION_SCSI_IO_REQUEST
3072              || reply_frame->Function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH,
3073                 ("MPT SCSI I/O Handler called with incorrect reply type"));
3074         KASSERT((reply_frame->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY) == 0,
3075                 ("MPT SCSI I/O Handler called with continuation reply"));
3076
3077         scsi_io_reply = (MSG_SCSI_IO_REPLY *)reply_frame;
3078         ioc_status = le16toh(scsi_io_reply->IOCStatus);
3079         ioc_status &= MPI_IOCSTATUS_MASK;
3080         sstate = scsi_io_reply->SCSIState;
3081
3082         ccb = req->ccb;
3083         ccb->csio.resid =
3084             ccb->csio.dxfer_len - le32toh(scsi_io_reply->TransferCount);
3085
3086         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_VALID) != 0
3087          && (ccb->ccb_h.flags & (CAM_SENSE_PHYS | CAM_SENSE_PTR)) == 0) {
3088                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
3089                 ccb->csio.sense_resid =
3090                     ccb->csio.sense_len - le32toh(scsi_io_reply->SenseCount);
3091                 bcopy(req->sense_vbuf, &ccb->csio.sense_data,
3092                     min(ccb->csio.sense_len,
3093                     le32toh(scsi_io_reply->SenseCount)));
3094         }
3095
3096         if ((sstate & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) != 0) {
3097                 /*
3098                  * Tag messages rejected, but non-tagged retry
3099                  * was successful.
3100 XXXX
3101                 mpt_set_tags(mpt, devinfo, MPT_QUEUE_NONE);
3102                  */
3103         }
3104
3105         switch(ioc_status) {
3106         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3107                 /*
3108                  * XXX
3109                  * Linux driver indicates that a zero
3110                  * transfer length with this error code
3111                  * indicates a CRC error.
3112                  *
3113                  * No need to swap the bytes for checking
3114                  * against zero.
3115                  */
3116                 if (scsi_io_reply->TransferCount == 0) {
3117                         mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3118                         break;
3119                 }
3120                 /* FALLTHROUGH */
3121         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
3122         case MPI_IOCSTATUS_SUCCESS:
3123         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:
3124                 if ((sstate & MPI_SCSI_STATE_NO_SCSI_STATUS) != 0) {
3125                         /*
3126                          * Status was never returned for this transaction.
3127                          */
3128                         mpt_set_ccb_status(ccb, CAM_UNEXP_BUSFREE);
3129                 } else if (scsi_io_reply->SCSIStatus != SCSI_STATUS_OK) {
3130                         ccb->csio.scsi_status = scsi_io_reply->SCSIStatus;
3131                         mpt_set_ccb_status(ccb, CAM_SCSI_STATUS_ERROR);
3132                         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_FAILED) != 0)
3133                                 mpt_set_ccb_status(ccb, CAM_AUTOSENSE_FAIL);
3134                 } else if ((sstate & MPI_SCSI_STATE_RESPONSE_INFO_VALID) != 0) {
3135
3136                         /* XXX Handle SPI-Packet and FCP-2 reponse info. */
3137                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3138                 } else
3139                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3140                 break;
3141         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
3142                 mpt_set_ccb_status(ccb, CAM_DATA_RUN_ERR);
3143                 break;
3144         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
3145                 mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3146                 break;
3147         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3148                 /*
3149                  * Since selection timeouts and "device really not
3150                  * there" are grouped into this error code, report
3151                  * selection timeout.  Selection timeouts are
3152                  * typically retried before giving up on the device
3153                  * whereas "device not there" errors are considered
3154                  * unretryable.
3155                  */
3156                 mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3157                 break;
3158         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3159                 mpt_set_ccb_status(ccb, CAM_SEQUENCE_FAIL);
3160                 break;
3161         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
3162                 mpt_set_ccb_status(ccb, CAM_PATH_INVALID);
3163                 break;
3164         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
3165                 mpt_set_ccb_status(ccb, CAM_TID_INVALID);
3166                 break;
3167         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3168                 ccb->ccb_h.status = CAM_UA_TERMIO;
3169                 break;
3170         case MPI_IOCSTATUS_INVALID_STATE:
3171                 /*
3172                  * The IOC has been reset.  Emulate a bus reset.
3173                  */
3174                 /* FALLTHROUGH */
3175         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
3176                 ccb->ccb_h.status = CAM_SCSI_BUS_RESET;
3177                 break;
3178         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
3179         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
3180                 /*
3181                  * Don't clobber any timeout status that has
3182                  * already been set for this transaction.  We
3183                  * want the SCSI layer to be able to differentiate
3184                  * between the command we aborted due to timeout
3185                  * and any innocent bystanders.
3186                  */
3187                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG)
3188                         break;
3189                 mpt_set_ccb_status(ccb, CAM_REQ_TERMIO);
3190                 break;
3191
3192         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
3193                 mpt_set_ccb_status(ccb, CAM_RESRC_UNAVAIL);
3194                 break;
3195         case MPI_IOCSTATUS_BUSY:
3196                 mpt_set_ccb_status(ccb, CAM_BUSY);
3197                 break;
3198         case MPI_IOCSTATUS_INVALID_FUNCTION:
3199         case MPI_IOCSTATUS_INVALID_SGL:
3200         case MPI_IOCSTATUS_INTERNAL_ERROR:
3201         case MPI_IOCSTATUS_INVALID_FIELD:
3202         default:
3203                 /* XXX
3204                  * Some of the above may need to kick
3205                  * of a recovery action!!!!
3206                  */
3207                 ccb->ccb_h.status = CAM_UNREC_HBA_ERROR;
3208                 break;
3209         }
3210
3211         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3212                 mpt_freeze_ccb(ccb);
3213         }
3214
3215         return (TRUE);
3216 }
3217
3218 static void
3219 mpt_action(struct cam_sim *sim, union ccb *ccb)
3220 {
3221         struct mpt_softc *mpt;
3222         struct ccb_trans_settings *cts;
3223         target_id_t tgt;
3224         lun_id_t lun;
3225         int raid_passthru;
3226
3227         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("mpt_action\n"));
3228
3229         mpt = (struct mpt_softc *)cam_sim_softc(sim);
3230         raid_passthru = (sim == mpt->phydisk_sim);
3231         MPT_LOCK_ASSERT(mpt);
3232
3233         tgt = ccb->ccb_h.target_id;
3234         lun = ccb->ccb_h.target_lun;
3235         if (raid_passthru &&
3236             ccb->ccb_h.func_code != XPT_PATH_INQ &&
3237             ccb->ccb_h.func_code != XPT_RESET_BUS &&
3238             ccb->ccb_h.func_code != XPT_RESET_DEV) {
3239                 CAMLOCK_2_MPTLOCK(mpt);
3240                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
3241                         MPTLOCK_2_CAMLOCK(mpt);
3242                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3243                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
3244                         xpt_done(ccb);
3245                         return;
3246                 }
3247                 MPTLOCK_2_CAMLOCK(mpt);
3248         }
3249         ccb->ccb_h.ccb_mpt_ptr = mpt;
3250
3251         switch (ccb->ccb_h.func_code) {
3252         case XPT_SCSI_IO:       /* Execute the requested I/O operation */
3253                 /*
3254                  * Do a couple of preliminary checks...
3255                  */
3256                 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
3257                         if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
3258                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3259                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3260                                 break;
3261                         }
3262                 }
3263                 /* Max supported CDB length is 16 bytes */
3264                 /* XXX Unless we implement the new 32byte message type */
3265                 if (ccb->csio.cdb_len >
3266                     sizeof (((PTR_MSG_SCSI_IO_REQUEST)0)->CDB)) {
3267                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3268                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3269                         break;
3270                 }
3271 #ifdef  MPT_TEST_MULTIPATH
3272                 if (mpt->failure_id == ccb->ccb_h.target_id) {
3273                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3274                         mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3275                         break;
3276                 }
3277 #endif
3278                 ccb->csio.scsi_status = SCSI_STATUS_OK;
3279                 mpt_start(sim, ccb);
3280                 return;
3281
3282         case XPT_RESET_BUS:
3283                 if (raid_passthru) {
3284                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3285                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3286                         break;
3287                 }
3288         case XPT_RESET_DEV:
3289                 if (ccb->ccb_h.func_code == XPT_RESET_BUS) {
3290                         if (bootverbose) {
3291                                 xpt_print(ccb->ccb_h.path, "reset bus\n");
3292                         }
3293                 } else {
3294                         xpt_print(ccb->ccb_h.path, "reset device\n");
3295                 }
3296                 CAMLOCK_2_MPTLOCK(mpt);
3297                 (void) mpt_bus_reset(mpt, tgt, lun, FALSE);
3298                 MPTLOCK_2_CAMLOCK(mpt);
3299
3300                 /*
3301                  * mpt_bus_reset is always successful in that it
3302                  * will fall back to a hard reset should a bus
3303                  * reset attempt fail.
3304                  */
3305                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3306                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3307                 break;
3308
3309         case XPT_ABORT:
3310         {
3311                 union ccb *accb = ccb->cab.abort_ccb;
3312                 CAMLOCK_2_MPTLOCK(mpt);
3313                 switch (accb->ccb_h.func_code) {
3314                 case XPT_ACCEPT_TARGET_IO:
3315                 case XPT_IMMED_NOTIFY:
3316                         ccb->ccb_h.status = mpt_abort_target_ccb(mpt, ccb);
3317                         break;
3318                 case XPT_CONT_TARGET_IO:
3319                         mpt_prt(mpt, "cannot abort active CTIOs yet\n");
3320                         ccb->ccb_h.status = CAM_UA_ABORT;
3321                         break;
3322                 case XPT_SCSI_IO:
3323                         ccb->ccb_h.status = CAM_UA_ABORT;
3324                         break;
3325                 default:
3326                         ccb->ccb_h.status = CAM_REQ_INVALID;
3327                         break;
3328                 }
3329                 MPTLOCK_2_CAMLOCK(mpt);
3330                 break;
3331         }
3332
3333 #ifdef  CAM_NEW_TRAN_CODE
3334 #define IS_CURRENT_SETTINGS(c)  ((c)->type == CTS_TYPE_CURRENT_SETTINGS)
3335 #else
3336 #define IS_CURRENT_SETTINGS(c)  ((c)->flags & CCB_TRANS_CURRENT_SETTINGS)
3337 #endif
3338 #define DP_DISC_ENABLE  0x1
3339 #define DP_DISC_DISABL  0x2
3340 #define DP_DISC         (DP_DISC_ENABLE|DP_DISC_DISABL)
3341
3342 #define DP_TQING_ENABLE 0x4
3343 #define DP_TQING_DISABL 0x8
3344 #define DP_TQING        (DP_TQING_ENABLE|DP_TQING_DISABL)
3345
3346 #define DP_WIDE         0x10
3347 #define DP_NARROW       0x20
3348 #define DP_WIDTH        (DP_WIDE|DP_NARROW)
3349
3350 #define DP_SYNC         0x40
3351
3352         case XPT_SET_TRAN_SETTINGS:     /* Nexus Settings */
3353         {
3354 #ifdef  CAM_NEW_TRAN_CODE
3355                 struct ccb_trans_settings_scsi *scsi;
3356                 struct ccb_trans_settings_spi *spi;
3357 #endif
3358                 uint8_t dval;
3359                 u_int period;
3360                 u_int offset;
3361                 int i, j;
3362
3363                 cts = &ccb->cts;
3364
3365                 if (mpt->is_fc || mpt->is_sas) {
3366                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3367                         break;
3368                 }
3369
3370 #ifdef  CAM_NEW_TRAN_CODE
3371                 scsi = &cts->proto_specific.scsi;
3372                 spi = &cts->xport_specific.spi;
3373
3374                 /*
3375                  * We can be called just to valid transport and proto versions
3376                  */
3377                 if (scsi->valid == 0 && spi->valid == 0) {
3378                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3379                         break;
3380                 }
3381 #endif
3382
3383                 /*
3384                  * Skip attempting settings on RAID volume disks.
3385                  * Other devices on the bus get the normal treatment.
3386                  */
3387                 if (mpt->phydisk_sim && raid_passthru == 0 &&
3388                     mpt_is_raid_volume(mpt, tgt) != 0) {
3389                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3390                             "no transfer settings for RAID vols\n");
3391                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3392                         break;
3393                 }
3394
3395                 i = mpt->mpt_port_page2.PortSettings &
3396                     MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
3397                 j = mpt->mpt_port_page2.PortFlags &
3398                     MPI_SCSIPORTPAGE2_PORT_FLAGS_DV_MASK;
3399                 if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS &&
3400                     j == MPI_SCSIPORTPAGE2_PORT_FLAGS_OFF_DV) {
3401                         mpt_lprt(mpt, MPT_PRT_ALWAYS,
3402                             "honoring BIOS transfer negotiations\n");
3403                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3404                         break;
3405                 }
3406
3407                 dval = 0;
3408                 period = 0;
3409                 offset = 0;
3410
3411 #ifndef CAM_NEW_TRAN_CODE
3412                 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
3413                         dval |= (cts->flags & CCB_TRANS_DISC_ENB) ?
3414                             DP_DISC_ENABLE : DP_DISC_DISABL;
3415                 }
3416
3417                 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
3418                         dval |= (cts->flags & CCB_TRANS_TAG_ENB) ?
3419                             DP_TQING_ENABLE : DP_TQING_DISABL;
3420                 }
3421
3422                 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
3423                         dval |= cts->bus_width ? DP_WIDE : DP_NARROW;
3424                 }
3425
3426                 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) &&
3427                     (cts->valid & CCB_TRANS_SYNC_OFFSET_VALID)) {
3428                         dval |= DP_SYNC;
3429                         period = cts->sync_period;
3430                         offset = cts->sync_offset;
3431                 }
3432 #else
3433                 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
3434                         dval |= ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) ?
3435                             DP_DISC_ENABLE : DP_DISC_DISABL;
3436                 }
3437
3438                 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
3439                         dval |= ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) ?
3440                             DP_TQING_ENABLE : DP_TQING_DISABL;
3441                 }
3442
3443                 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
3444                         dval |= (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT) ?
3445                             DP_WIDE : DP_NARROW;
3446                 }
3447
3448                 if (spi->valid & CTS_SPI_VALID_SYNC_OFFSET) {
3449                         dval |= DP_SYNC;
3450                         offset = spi->sync_offset;
3451                 } else {
3452                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3453                             &mpt->mpt_dev_page1[tgt];
3454                         offset = ptr->RequestedParameters;
3455                         offset &= MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3456                         offset >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3457                 }
3458                 if (spi->valid & CTS_SPI_VALID_SYNC_RATE) {
3459                         dval |= DP_SYNC;
3460                         period = spi->sync_period;
3461                 } else {
3462                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3463                             &mpt->mpt_dev_page1[tgt];
3464                         period = ptr->RequestedParameters;
3465                         period &= MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3466                         period >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3467                 }
3468 #endif
3469                 CAMLOCK_2_MPTLOCK(mpt);
3470                 if (dval & DP_DISC_ENABLE) {
3471                         mpt->mpt_disc_enable |= (1 << tgt);
3472                 } else if (dval & DP_DISC_DISABL) {
3473                         mpt->mpt_disc_enable &= ~(1 << tgt);
3474                 }
3475                 if (dval & DP_TQING_ENABLE) {
3476                         mpt->mpt_tag_enable |= (1 << tgt);
3477                 } else if (dval & DP_TQING_DISABL) {
3478                         mpt->mpt_tag_enable &= ~(1 << tgt);
3479                 }
3480                 if (dval & DP_WIDTH) {
3481                         mpt_setwidth(mpt, tgt, 1);
3482                 }
3483                 if (dval & DP_SYNC) {
3484                         mpt_setsync(mpt, tgt, period, offset);
3485                 }
3486                 if (dval == 0) {
3487                         MPTLOCK_2_CAMLOCK(mpt);
3488                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3489                         break;
3490                 }
3491                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3492                     "set [%d]: 0x%x period 0x%x offset %d\n",
3493                     tgt, dval, period, offset);
3494                 if (mpt_update_spi_config(mpt, tgt)) {
3495                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3496                 } else {
3497                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3498                 }
3499                 MPTLOCK_2_CAMLOCK(mpt);
3500                 break;
3501         }
3502         case XPT_GET_TRAN_SETTINGS:
3503         {
3504 #ifdef  CAM_NEW_TRAN_CODE
3505                 struct ccb_trans_settings_scsi *scsi;
3506                 cts = &ccb->cts;
3507                 cts->protocol = PROTO_SCSI;
3508                 if (mpt->is_fc) {
3509                         struct ccb_trans_settings_fc *fc =
3510                             &cts->xport_specific.fc;
3511                         cts->protocol_version = SCSI_REV_SPC;
3512                         cts->transport = XPORT_FC;
3513                         cts->transport_version = 0;
3514                         fc->valid = CTS_FC_VALID_SPEED;
3515                         fc->bitrate = 100000;
3516                 } else if (mpt->is_sas) {
3517                         struct ccb_trans_settings_sas *sas =
3518                             &cts->xport_specific.sas;
3519                         cts->protocol_version = SCSI_REV_SPC2;
3520                         cts->transport = XPORT_SAS;
3521                         cts->transport_version = 0;
3522                         sas->valid = CTS_SAS_VALID_SPEED;
3523                         sas->bitrate = 300000;
3524                 } else {
3525                         cts->protocol_version = SCSI_REV_2;
3526                         cts->transport = XPORT_SPI;
3527                         cts->transport_version = 2;
3528                         if (mpt_get_spi_settings(mpt, cts) != 0) {
3529                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3530                                 break;
3531                         }
3532                 }
3533                 scsi = &cts->proto_specific.scsi;
3534                 scsi->valid = CTS_SCSI_VALID_TQ;
3535                 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3536 #else
3537                 cts = &ccb->cts;
3538                 if (mpt->is_fc) {
3539                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3540                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3541                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3542                 } else if (mpt->is_sas) {
3543                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3544                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3545                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3546                 } else if (mpt_get_spi_settings(mpt, cts) != 0) {
3547                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3548                         break;
3549                 }
3550 #endif
3551                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3552                 break;
3553         }
3554         case XPT_CALC_GEOMETRY:
3555         {
3556                 struct ccb_calc_geometry *ccg;
3557
3558                 ccg = &ccb->ccg;
3559                 if (ccg->block_size == 0) {
3560                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3561                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3562                         break;
3563                 }
3564                 mpt_calc_geometry(ccg, /*extended*/1);
3565                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
3566                 break;
3567         }
3568         case XPT_PATH_INQ:              /* Path routing inquiry */
3569         {
3570                 struct ccb_pathinq *cpi = &ccb->cpi;
3571
3572                 cpi->version_num = 1;
3573                 cpi->target_sprt = 0;
3574                 cpi->hba_eng_cnt = 0;
3575                 cpi->max_target = mpt->port_facts[0].MaxDevices - 1;
3576                 /*
3577                  * FC cards report MAX_DEVICES of 512, but
3578                  * the MSG_SCSI_IO_REQUEST target id field
3579                  * is only 8 bits. Until we fix the driver
3580                  * to support 'channels' for bus overflow,
3581                  * just limit it.
3582                  */
3583                 if (cpi->max_target > 255) {
3584                         cpi->max_target = 255;
3585                 }
3586
3587                 /*
3588                  * VMware ESX reports > 16 devices and then dies when we probe.
3589                  */
3590                 if (mpt->is_spi && cpi->max_target > 15) {
3591                         cpi->max_target = 15;
3592                 }
3593                 if (mpt->is_spi)
3594                         cpi->max_lun = 7;
3595                 else
3596                         cpi->max_lun = MPT_MAX_LUNS;
3597                 cpi->initiator_id = mpt->mpt_ini_id;
3598                 cpi->bus_id = cam_sim_bus(sim);
3599
3600                 /*
3601                  * The base speed is the speed of the underlying connection.
3602                  */
3603 #ifdef  CAM_NEW_TRAN_CODE
3604                 cpi->protocol = PROTO_SCSI;
3605                 if (mpt->is_fc) {
3606                         cpi->hba_misc = PIM_NOBUSRESET;
3607                         cpi->base_transfer_speed = 100000;
3608                         cpi->hba_inquiry = PI_TAG_ABLE;
3609                         cpi->transport = XPORT_FC;
3610                         cpi->transport_version = 0;
3611                         cpi->protocol_version = SCSI_REV_SPC;
3612                 } else if (mpt->is_sas) {
3613                         cpi->hba_misc = PIM_NOBUSRESET;
3614                         cpi->base_transfer_speed = 300000;
3615                         cpi->hba_inquiry = PI_TAG_ABLE;
3616                         cpi->transport = XPORT_SAS;
3617                         cpi->transport_version = 0;
3618                         cpi->protocol_version = SCSI_REV_SPC2;
3619                 } else {
3620                         cpi->hba_misc = PIM_SEQSCAN;
3621                         cpi->base_transfer_speed = 3300;
3622                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3623                         cpi->transport = XPORT_SPI;
3624                         cpi->transport_version = 2;
3625                         cpi->protocol_version = SCSI_REV_2;
3626                 }
3627 #else
3628                 if (mpt->is_fc) {
3629                         cpi->hba_misc = PIM_NOBUSRESET;
3630                         cpi->base_transfer_speed = 100000;
3631                         cpi->hba_inquiry = PI_TAG_ABLE;
3632                 } else if (mpt->is_sas) {
3633                         cpi->hba_misc = PIM_NOBUSRESET;
3634                         cpi->base_transfer_speed = 300000;
3635                         cpi->hba_inquiry = PI_TAG_ABLE;
3636                 } else {
3637                         cpi->hba_misc = PIM_SEQSCAN;
3638                         cpi->base_transfer_speed = 3300;
3639                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3640                 }
3641 #endif
3642
3643                 /*
3644                  * We give our fake RAID passhtru bus a width that is MaxVolumes
3645                  * wide and restrict it to one lun.
3646                  */
3647                 if (raid_passthru) {
3648                         cpi->max_target = mpt->ioc_page2->MaxPhysDisks - 1;
3649                         cpi->initiator_id = cpi->max_target + 1;
3650                         cpi->max_lun = 0;
3651                 }
3652
3653                 if ((mpt->role & MPT_ROLE_INITIATOR) == 0) {
3654                         cpi->hba_misc |= PIM_NOINITIATOR;
3655                 }
3656                 if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
3657                         cpi->target_sprt =
3658                             PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
3659                 } else {
3660                         cpi->target_sprt = 0;
3661                 }
3662                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3663                 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
3664                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3665                 cpi->unit_number = cam_sim_unit(sim);
3666                 cpi->ccb_h.status = CAM_REQ_CMP;
3667                 break;
3668         }
3669         case XPT_EN_LUN:                /* Enable LUN as a target */
3670         {
3671                 int result;
3672
3673                 CAMLOCK_2_MPTLOCK(mpt);
3674                 if (ccb->cel.enable)
3675                         result = mpt_enable_lun(mpt,
3676                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3677                 else
3678                         result = mpt_disable_lun(mpt,
3679                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3680                 MPTLOCK_2_CAMLOCK(mpt);
3681                 if (result == 0) {
3682                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3683                 } else {
3684                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3685                 }
3686                 break;
3687         }
3688         case XPT_NOTIFY_ACK:            /* recycle notify ack */
3689         case XPT_IMMED_NOTIFY:          /* Add Immediate Notify Resource */
3690         case XPT_ACCEPT_TARGET_IO:      /* Add Accept Target IO Resource */
3691         {
3692                 tgt_resource_t *trtp;
3693                 lun_id_t lun = ccb->ccb_h.target_lun;
3694                 ccb->ccb_h.sim_priv.entries[0].field = 0;
3695                 ccb->ccb_h.sim_priv.entries[1].ptr = mpt;
3696                 ccb->ccb_h.flags = 0;
3697
3698                 if (lun == CAM_LUN_WILDCARD) {
3699                         if (ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
3700                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3701                                 break;
3702                         }
3703                         trtp = &mpt->trt_wildcard;
3704                 } else if (lun >= MPT_MAX_LUNS) {
3705                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3706                         break;
3707                 } else {
3708                         trtp = &mpt->trt[lun];
3709                 }
3710                 CAMLOCK_2_MPTLOCK(mpt);
3711                 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
3712                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3713                             "Put FREE ATIO %p lun %d\n", ccb, lun);
3714                         STAILQ_INSERT_TAIL(&trtp->atios, &ccb->ccb_h,
3715                             sim_links.stqe);
3716                 } else if (ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
3717                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3718                             "Put FREE INOT lun %d\n", lun);
3719                         STAILQ_INSERT_TAIL(&trtp->inots, &ccb->ccb_h,
3720                             sim_links.stqe);
3721                 } else {
3722                         mpt_lprt(mpt, MPT_PRT_ALWAYS, "Got Notify ACK\n");
3723                 }
3724                 mpt_set_ccb_status(ccb, CAM_REQ_INPROG);
3725                 MPTLOCK_2_CAMLOCK(mpt);
3726                 return;
3727         }
3728         case XPT_CONT_TARGET_IO:
3729                 CAMLOCK_2_MPTLOCK(mpt);
3730                 mpt_target_start_io(mpt, ccb);
3731                 MPTLOCK_2_CAMLOCK(mpt);
3732                 return;
3733
3734         default:
3735                 ccb->ccb_h.status = CAM_REQ_INVALID;
3736                 break;
3737         }
3738         xpt_done(ccb);
3739 }
3740
3741 static int
3742 mpt_get_spi_settings(struct mpt_softc *mpt, struct ccb_trans_settings *cts)
3743 {
3744 #ifdef  CAM_NEW_TRAN_CODE
3745         struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3746         struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3747 #endif
3748         target_id_t tgt;
3749         uint32_t dval, pval, oval;
3750         int rv;
3751
3752         if (IS_CURRENT_SETTINGS(cts) == 0) {
3753                 tgt = cts->ccb_h.target_id;
3754         } else if (xpt_path_sim(cts->ccb_h.path) == mpt->phydisk_sim) {
3755                 if (mpt_map_physdisk(mpt, (union ccb *)cts, &tgt)) {
3756                         return (-1);
3757                 }
3758         } else {
3759                 tgt = cts->ccb_h.target_id;
3760         }
3761
3762         /*
3763          * We aren't looking at Port Page 2 BIOS settings here-
3764          * sometimes these have been known to be bogus XXX.
3765          *
3766          * For user settings, we pick the max from port page 0
3767          *
3768          * For current settings we read the current settings out from
3769          * device page 0 for that target.
3770          */
3771         if (IS_CURRENT_SETTINGS(cts)) {
3772                 CONFIG_PAGE_SCSI_DEVICE_0 tmp;
3773                 dval = 0;
3774
3775                 CAMLOCK_2_MPTLOCK(mpt);
3776                 tmp = mpt->mpt_dev_page0[tgt];
3777                 rv = mpt_read_cur_cfg_page(mpt, tgt, &tmp.Header,
3778                     sizeof(tmp), FALSE, 5000);
3779                 if (rv) {
3780                         MPTLOCK_2_CAMLOCK(mpt);
3781                         mpt_prt(mpt, "can't get tgt %d config page 0\n", tgt);
3782                         return (rv);
3783                 }
3784                 mpt2host_config_page_scsi_device_0(&tmp);
3785
3786                 MPTLOCK_2_CAMLOCK(mpt);
3787                 mpt_lprt(mpt, MPT_PRT_DEBUG,
3788                     "mpt_get_spi_settings[%d]: current NP %x Info %x\n",
3789                     tgt,
3790                     (unsigned)tmp.NegotiatedParameters,
3791                     (unsigned)tmp.Information);
3792                 dval |= (tmp.NegotiatedParameters & MPI_SCSIDEVPAGE0_NP_WIDE) ?
3793                     DP_WIDE : DP_NARROW;
3794                 dval |= (mpt->mpt_disc_enable & (1 << tgt)) ?
3795                     DP_DISC_ENABLE : DP_DISC_DISABL;
3796                 dval |= (mpt->mpt_tag_enable & (1 << tgt)) ?
3797                     DP_TQING_ENABLE : DP_TQING_DISABL;
3798                 oval = tmp.NegotiatedParameters;
3799                 oval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK;
3800                 oval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
3801                 pval = tmp.NegotiatedParameters;
3802                 pval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK;
3803                 pval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
3804                 mpt->mpt_dev_page0[tgt] = tmp;
3805         } else {
3806                 dval = DP_WIDE|DP_DISC_ENABLE|DP_TQING_ENABLE|DP_SYNC;
3807                 oval = mpt->mpt_port_page0.Capabilities;
3808                 oval = MPI_SCSIPORTPAGE0_CAP_GET_MAX_SYNC_OFFSET(oval);
3809                 pval = mpt->mpt_port_page0.Capabilities;
3810                 pval = MPI_SCSIPORTPAGE0_CAP_GET_MIN_SYNC_PERIOD(pval);
3811         }
3812
3813 #ifndef CAM_NEW_TRAN_CODE
3814         cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
3815         cts->valid = 0;
3816         cts->sync_period = pval;
3817         cts->sync_offset = oval;
3818         cts->valid |= CCB_TRANS_SYNC_RATE_VALID;
3819         cts->valid |= CCB_TRANS_SYNC_OFFSET_VALID;
3820         cts->valid |= CCB_TRANS_BUS_WIDTH_VALID;
3821         if (dval & DP_WIDE) {
3822                 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3823         } else {
3824                 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3825         }
3826         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3827                 cts->valid |= CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3828                 if (dval & DP_DISC_ENABLE) {
3829                         cts->flags |= CCB_TRANS_DISC_ENB;
3830                 }
3831                 if (dval & DP_TQING_ENABLE) {
3832                         cts->flags |= CCB_TRANS_TAG_ENB;
3833                 }
3834         }
3835 #else
3836         spi->valid = 0;
3837         scsi->valid = 0;
3838         spi->flags = 0;
3839         scsi->flags = 0;
3840         spi->sync_offset = oval;
3841         spi->sync_period = pval;
3842         spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3843         spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3844         spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
3845         if (dval & DP_WIDE) {
3846                 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3847         } else {
3848                 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3849         }
3850         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3851                 scsi->valid = CTS_SCSI_VALID_TQ;
3852                 if (dval & DP_TQING_ENABLE) {
3853                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3854                 }
3855                 spi->valid |= CTS_SPI_VALID_DISC;
3856                 if (dval & DP_DISC_ENABLE) {
3857                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3858                 }
3859         }
3860 #endif
3861         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3862             "mpt_get_spi_settings[%d]: %s flags 0x%x per 0x%x off=%d\n", tgt,
3863             IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM ", dval, pval, oval);
3864         return (0);
3865 }
3866
3867 static void
3868 mpt_setwidth(struct mpt_softc *mpt, int tgt, int onoff)
3869 {
3870         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3871
3872         ptr = &mpt->mpt_dev_page1[tgt];
3873         if (onoff) {
3874                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_WIDE;
3875         } else {
3876                 ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_WIDE;
3877         }
3878 }
3879
3880 static void
3881 mpt_setsync(struct mpt_softc *mpt, int tgt, int period, int offset)
3882 {
3883         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3884
3885         ptr = &mpt->mpt_dev_page1[tgt];
3886         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3887         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3888         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_DT;
3889         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_QAS;
3890         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_IU;
3891         if (period == 0) {
3892                 return;
3893         }
3894         ptr->RequestedParameters |=
3895             period << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3896         ptr->RequestedParameters |=
3897             offset << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3898         if (period < 0xa) {
3899                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_DT;
3900         }
3901         if (period < 0x9) {
3902                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_QAS;
3903                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_IU;
3904         }
3905 }
3906
3907 static int
3908 mpt_update_spi_config(struct mpt_softc *mpt, int tgt)
3909 {
3910         CONFIG_PAGE_SCSI_DEVICE_1 tmp;
3911         int rv;
3912
3913         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3914             "mpt_update_spi_config[%d].page1: Requested Params 0x%08x\n",
3915             tgt,
3916             (unsigned)mpt->mpt_dev_page1[tgt].RequestedParameters);
3917         tmp = mpt->mpt_dev_page1[tgt];
3918         host2mpt_config_page_scsi_device_1(&tmp);
3919         rv = mpt_write_cur_cfg_page(mpt, tgt,
3920             &tmp.Header, sizeof(tmp), FALSE, 5000);
3921         if (rv) {
3922                 mpt_prt(mpt, "mpt_update_spi_config: write cur page failed\n");
3923                 return (-1);
3924         }
3925         return (0);
3926 }
3927
3928 static void
3929 mpt_calc_geometry(struct ccb_calc_geometry *ccg, int extended)
3930 {
3931 #if __FreeBSD_version >= 500000
3932         cam_calc_geometry(ccg, extended);
3933 #else
3934         uint32_t size_mb;
3935         uint32_t secs_per_cylinder;
3936
3937         if (ccg->block_size == 0) {
3938                 ccg->ccb_h.status = CAM_REQ_INVALID;
3939                 return;
3940         }
3941         size_mb = ccg->volume_size / ((1024L * 1024L) / ccg->block_size);
3942         if (size_mb > 1024 && extended) {
3943                 ccg->heads = 255;
3944                 ccg->secs_per_track = 63;
3945         } else {
3946                 ccg->heads = 64;
3947                 ccg->secs_per_track = 32;
3948         }
3949         secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3950         ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3951         ccg->ccb_h.status = CAM_REQ_CMP;
3952 #endif
3953 }
3954
3955 /****************************** Timeout Recovery ******************************/
3956 static int
3957 mpt_spawn_recovery_thread(struct mpt_softc *mpt)
3958 {
3959         int error;
3960
3961         error = mpt_kthread_create(mpt_recovery_thread, mpt,
3962             &mpt->recovery_thread, /*flags*/0,
3963             /*altstack*/0, "mpt_recovery%d", mpt->unit);
3964         return (error);
3965 }
3966
3967 static void
3968 mpt_terminate_recovery_thread(struct mpt_softc *mpt)
3969 {
3970         if (mpt->recovery_thread == NULL) {
3971                 return;
3972         }
3973         mpt->shutdwn_recovery = 1;
3974         wakeup(mpt);
3975         /*
3976          * Sleep on a slightly different location
3977          * for this interlock just for added safety.
3978          */
3979         mpt_sleep(mpt, &mpt->recovery_thread, PUSER, "thtrm", 0);
3980 }
3981
3982 static void
3983 mpt_recovery_thread(void *arg)
3984 {
3985         struct mpt_softc *mpt;
3986
3987         mpt = (struct mpt_softc *)arg;
3988
3989         get_mplock();
3990         MPT_LOCK(mpt);
3991
3992         for (;;) {
3993                 if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
3994                         if (mpt->shutdwn_recovery == 0) {
3995                                 mpt_sleep(mpt, mpt, PUSER, "idle", 0);
3996                         }
3997                 }
3998                 if (mpt->shutdwn_recovery != 0) {
3999                         break;
4000                 }
4001                 mpt_recover_commands(mpt);
4002         }
4003         mpt->recovery_thread = NULL;
4004         wakeup(&mpt->recovery_thread);
4005         MPT_UNLOCK(mpt);
4006         rel_mplock();
4007 }
4008
4009 static int
4010 mpt_scsi_send_tmf(struct mpt_softc *mpt, u_int type, u_int flags,
4011     u_int channel, u_int target, u_int lun, u_int abort_ctx, int sleep_ok)
4012 {
4013         MSG_SCSI_TASK_MGMT *tmf_req;
4014         int                 error;
4015
4016         /*
4017          * Wait for any current TMF request to complete.
4018          * We're only allowed to issue one TMF at a time.
4019          */
4020         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_FREE, REQ_STATE_FREE,
4021             sleep_ok, MPT_TMF_MAX_TIMEOUT);
4022         if (error != 0) {
4023                 mpt_reset(mpt, TRUE);
4024                 return (ETIMEDOUT);
4025         }
4026
4027         mpt_assign_serno(mpt, mpt->tmf_req);
4028         mpt->tmf_req->state = REQ_STATE_ALLOCATED|REQ_STATE_QUEUED;
4029
4030         tmf_req = (MSG_SCSI_TASK_MGMT *)mpt->tmf_req->req_vbuf;
4031         memset(tmf_req, 0, sizeof(*tmf_req));
4032         tmf_req->TargetID = target;
4033         tmf_req->Bus = channel;
4034         tmf_req->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
4035         tmf_req->TaskType = type;
4036         tmf_req->MsgFlags = flags;
4037         tmf_req->MsgContext =
4038             htole32(mpt->tmf_req->index | scsi_tmf_handler_id);
4039         if (lun > MPT_MAX_LUNS) {
4040                 tmf_req->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4041                 tmf_req->LUN[1] = lun & 0xff;
4042         } else {
4043                 tmf_req->LUN[1] = lun;
4044         }
4045         tmf_req->TaskMsgContext = abort_ctx;
4046
4047         mpt_lprt(mpt, MPT_PRT_DEBUG,
4048             "Issuing TMF %p:%u with MsgContext of 0x%x\n",
4049             mpt->tmf_req,
4050             (unsigned)mpt->tmf_req->serno,
4051             (unsigned)tmf_req->MsgContext);
4052         if (mpt->verbose > MPT_PRT_DEBUG) {
4053                 mpt_print_request(tmf_req);
4054         }
4055
4056         KASSERT(mpt_req_on_pending_list(mpt, mpt->tmf_req) == 0,
4057             ("mpt_scsi_send_tmf: tmf_req already on pending list"));
4058         TAILQ_INSERT_HEAD(&mpt->request_pending_list, mpt->tmf_req, links);
4059         error = mpt_send_handshake_cmd(mpt, sizeof(*tmf_req), tmf_req);
4060         if (error != MPT_OK) {
4061                 TAILQ_REMOVE(&mpt->request_pending_list, mpt->tmf_req, links);
4062                 mpt->tmf_req->state = REQ_STATE_FREE;
4063                 mpt_reset(mpt, TRUE);
4064         }
4065         return (error);
4066 }
4067
4068 /*
4069  * When a command times out, it is placed on the requeust_timeout_list
4070  * and we wake our recovery thread.  The MPT-Fusion architecture supports
4071  * only a single TMF operation at a time, so we serially abort/bdr, etc,
4072  * the timedout transactions.  The next TMF is issued either by the
4073  * completion handler of the current TMF waking our recovery thread,
4074  * or the TMF timeout handler causing a hard reset sequence.
4075  */
4076 static void
4077 mpt_recover_commands(struct mpt_softc *mpt)
4078 {
4079         request_t          *req;
4080         union ccb          *ccb;
4081         int                 error;
4082
4083         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4084                 /*
4085                  * No work to do- leave.
4086                  */
4087                 mpt_prt(mpt, "mpt_recover_commands: no requests.\n");
4088                 return;
4089         }
4090
4091         /*
4092          * Flush any commands whose completion coincides with their timeout.
4093          */
4094         mpt_intr(mpt);
4095
4096         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4097                 /*
4098                  * The timedout commands have already
4099                  * completed.  This typically means
4100                  * that either the timeout value was on
4101                  * the hairy edge of what the device
4102                  * requires or - more likely - interrupts
4103                  * are not happening.
4104                  */
4105                 mpt_prt(mpt, "Timedout requests already complete. "
4106                     "Interrupts may not be functioning.\n");
4107                 mpt_enable_ints(mpt);
4108                 return;
4109         }
4110
4111         /*
4112          * We have no visibility into the current state of the
4113          * controller, so attempt to abort the commands in the
4114          * order they timed-out. For initiator commands, we
4115          * depend on the reply handler pulling requests off
4116          * the timeout list.
4117          */
4118         while ((req = TAILQ_FIRST(&mpt->request_timeout_list)) != NULL) {
4119                 uint16_t status;
4120                 uint8_t response;
4121                 MSG_REQUEST_HEADER *hdrp = req->req_vbuf;
4122
4123                 mpt_prt(mpt, "attempting to abort req %p:%u function %x\n",
4124                     req, req->serno, hdrp->Function);
4125                 ccb = req->ccb;
4126                 if (ccb == NULL) {
4127                         mpt_prt(mpt, "null ccb in timed out request. "
4128                             "Resetting Controller.\n");
4129                         mpt_reset(mpt, TRUE);
4130                         continue;
4131                 }
4132                 mpt_set_ccb_status(ccb, CAM_CMD_TIMEOUT);
4133
4134                 /*
4135                  * Check to see if this is not an initiator command and
4136                  * deal with it differently if it is.
4137                  */
4138                 switch (hdrp->Function) {
4139                 case MPI_FUNCTION_SCSI_IO_REQUEST:
4140                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
4141                         break;
4142                 default:
4143                         /*
4144                          * XXX: FIX ME: need to abort target assists...
4145                          */
4146                         mpt_prt(mpt, "just putting it back on the pend q\n");
4147                         TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
4148                         TAILQ_INSERT_HEAD(&mpt->request_pending_list, req,
4149                             links);
4150                         continue;
4151                 }
4152
4153                 error = mpt_scsi_send_tmf(mpt,
4154                     MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
4155                     0, 0, ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
4156                     htole32(req->index | scsi_io_handler_id), TRUE);
4157
4158                 if (error != 0) {
4159                         /*
4160                          * mpt_scsi_send_tmf hard resets on failure, so no
4161                          * need to do so here.  Our queue should be emptied
4162                          * by the hard reset.
4163                          */
4164                         continue;
4165                 }
4166
4167                 error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
4168                     REQ_STATE_DONE, TRUE, 500);
4169
4170                 status = le16toh(mpt->tmf_req->IOCStatus);
4171                 response = mpt->tmf_req->ResponseCode;
4172                 mpt->tmf_req->state = REQ_STATE_FREE;
4173
4174                 if (error != 0) {
4175                         /*
4176                          * If we've errored out,, reset the controller.
4177                          */
4178                         mpt_prt(mpt, "mpt_recover_commands: abort timed-out. "
4179                             "Resetting controller\n");
4180                         mpt_reset(mpt, TRUE);
4181                         continue;
4182                 }
4183
4184                 if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
4185                         mpt_prt(mpt, "mpt_recover_commands: IOC Status 0x%x. "
4186                             "Resetting controller.\n", status);
4187                         mpt_reset(mpt, TRUE);
4188                         continue;
4189                 }
4190
4191                 if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
4192                     response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
4193                         mpt_prt(mpt, "mpt_recover_commands: TMF Response 0x%x. "
4194                             "Resetting controller.\n", response);
4195                         mpt_reset(mpt, TRUE);
4196                         continue;
4197                 }
4198                 mpt_prt(mpt, "abort of req %p:%u completed\n", req, req->serno);
4199         }
4200 }
4201
4202 /************************ Target Mode Support ****************************/
4203 static void
4204 mpt_fc_post_els(struct mpt_softc *mpt, request_t *req, int ioindex)
4205 {
4206         MSG_LINK_SERVICE_BUFFER_POST_REQUEST *fc;
4207         PTR_SGE_TRANSACTION32 tep;
4208         PTR_SGE_SIMPLE32 se;
4209         bus_addr_t paddr;
4210         uint32_t fl;
4211
4212         paddr = req->req_pbuf;
4213         paddr += MPT_RQSL(mpt);
4214
4215         fc = req->req_vbuf;
4216         memset(fc, 0, MPT_REQUEST_AREA);
4217         fc->BufferCount = 1;
4218         fc->Function = MPI_FUNCTION_FC_LINK_SRVC_BUF_POST;
4219         fc->MsgContext = htole32(req->index | fc_els_handler_id);
4220
4221         /*
4222          * Okay, set up ELS buffer pointers. ELS buffer pointers
4223          * consist of a TE SGL element (with details length of zero)
4224          * followe by a SIMPLE SGL element which holds the address
4225          * of the buffer.
4226          */
4227
4228         tep = (PTR_SGE_TRANSACTION32) &fc->SGL;
4229
4230         tep->ContextSize = 4;
4231         tep->Flags = 0;
4232         tep->TransactionContext[0] = htole32(ioindex);
4233
4234         se = (PTR_SGE_SIMPLE32) &tep->TransactionDetails[0];
4235         fl =
4236                 MPI_SGE_FLAGS_HOST_TO_IOC       |
4237                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4238                 MPI_SGE_FLAGS_LAST_ELEMENT      |
4239                 MPI_SGE_FLAGS_END_OF_LIST       |
4240                 MPI_SGE_FLAGS_END_OF_BUFFER;
4241         fl <<= MPI_SGE_FLAGS_SHIFT;
4242         fl |= (MPT_NRFM(mpt) - MPT_RQSL(mpt));
4243         se->FlagsLength = htole32(fl);
4244         se->Address = htole32((uint32_t) paddr);
4245         mpt_lprt(mpt, MPT_PRT_DEBUG,
4246             "add ELS index %d ioindex %d for %p:%u\n",
4247             req->index, ioindex, req, req->serno);
4248         KASSERT(((req->state & REQ_STATE_LOCKED) != 0),
4249             ("mpt_fc_post_els: request not locked"));
4250         mpt_send_cmd(mpt, req);
4251 }
4252
4253 static void
4254 mpt_post_target_command(struct mpt_softc *mpt, request_t *req, int ioindex)
4255 {
4256         PTR_MSG_TARGET_CMD_BUFFER_POST_REQUEST fc;
4257         PTR_CMD_BUFFER_DESCRIPTOR cb;
4258         bus_addr_t paddr;
4259
4260         paddr = req->req_pbuf;
4261         paddr += MPT_RQSL(mpt);
4262         memset(req->req_vbuf, 0, MPT_REQUEST_AREA);
4263         MPT_TGT_STATE(mpt, req)->state = TGT_STATE_LOADING;
4264
4265         fc = req->req_vbuf;
4266         fc->BufferCount = 1;
4267         fc->Function = MPI_FUNCTION_TARGET_CMD_BUFFER_POST;
4268         fc->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4269
4270         cb = &fc->Buffer[0];
4271         cb->IoIndex = htole16(ioindex);
4272         cb->u.PhysicalAddress32 = htole32((U32) paddr);
4273
4274         mpt_check_doorbell(mpt);
4275         mpt_send_cmd(mpt, req);
4276 }
4277
4278 static int
4279 mpt_add_els_buffers(struct mpt_softc *mpt)
4280 {
4281         int i;
4282
4283         if (mpt->is_fc == 0) {
4284                 return (TRUE);
4285         }
4286
4287         if (mpt->els_cmds_allocated) {
4288                 return (TRUE);
4289         }
4290
4291         mpt->els_cmd_ptrs = kmalloc(MPT_MAX_ELS * sizeof (request_t *),
4292             M_DEVBUF, M_NOWAIT | M_ZERO);
4293
4294         if (mpt->els_cmd_ptrs == NULL) {
4295                 return (FALSE);
4296         }
4297
4298         /*
4299          * Feed the chip some ELS buffer resources
4300          */
4301         for (i = 0; i < MPT_MAX_ELS; i++) {
4302                 request_t *req = mpt_get_request(mpt, FALSE);
4303                 if (req == NULL) {
4304                         break;
4305                 }
4306                 req->state |= REQ_STATE_LOCKED;
4307                 mpt->els_cmd_ptrs[i] = req;
4308                 mpt_fc_post_els(mpt, req, i);
4309         }
4310
4311         if (i == 0) {
4312                 mpt_prt(mpt, "unable to add ELS buffer resources\n");
4313                 kfree(mpt->els_cmd_ptrs, M_DEVBUF);
4314                 mpt->els_cmd_ptrs = NULL;
4315                 return (FALSE);
4316         }
4317         if (i != MPT_MAX_ELS) {
4318                 mpt_lprt(mpt, MPT_PRT_INFO,
4319                     "only added %d of %d  ELS buffers\n", i, MPT_MAX_ELS);
4320         }
4321         mpt->els_cmds_allocated = i;
4322         return(TRUE);
4323 }
4324
4325 static int
4326 mpt_add_target_commands(struct mpt_softc *mpt)
4327 {
4328         int i, max;
4329
4330         if (mpt->tgt_cmd_ptrs) {
4331                 return (TRUE);
4332         }
4333
4334         max = MPT_MAX_REQUESTS(mpt) >> 1;
4335         if (max > mpt->mpt_max_tgtcmds) {
4336                 max = mpt->mpt_max_tgtcmds;
4337         }
4338         mpt->tgt_cmd_ptrs =
4339             kmalloc(max * sizeof (request_t *), M_DEVBUF, M_NOWAIT | M_ZERO);
4340         if (mpt->tgt_cmd_ptrs == NULL) {
4341                 mpt_prt(mpt,
4342                     "mpt_add_target_commands: could not allocate cmd ptrs\n");
4343                 return (FALSE);
4344         }
4345
4346         for (i = 0; i < max; i++) {
4347                 request_t *req;
4348
4349                 req = mpt_get_request(mpt, FALSE);
4350                 if (req == NULL) {
4351                         break;
4352                 }
4353                 req->state |= REQ_STATE_LOCKED;
4354                 mpt->tgt_cmd_ptrs[i] = req;
4355                 mpt_post_target_command(mpt, req, i);
4356         }
4357
4358
4359         if (i == 0) {
4360                 mpt_lprt(mpt, MPT_PRT_ERROR, "could not add any target bufs\n");
4361                 kfree(mpt->tgt_cmd_ptrs, M_DEVBUF);
4362                 mpt->tgt_cmd_ptrs = NULL;
4363                 return (FALSE);
4364         }
4365
4366         mpt->tgt_cmds_allocated = i;
4367
4368         if (i < max) {
4369                 mpt_lprt(mpt, MPT_PRT_INFO,
4370                     "added %d of %d target bufs\n", i, max);
4371         }
4372         return (i);
4373 }
4374
4375 static int
4376 mpt_enable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4377 {
4378         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4379                 mpt->twildcard = 1;
4380         } else if (lun >= MPT_MAX_LUNS) {
4381                 return (EINVAL);
4382         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4383                 return (EINVAL);
4384         }
4385         if (mpt->tenabled == 0) {
4386                 if (mpt->is_fc) {
4387                         (void) mpt_fc_reset_link(mpt, 0);
4388                 }
4389                 mpt->tenabled = 1;
4390         }
4391         if (lun == CAM_LUN_WILDCARD) {
4392                 mpt->trt_wildcard.enabled = 1;
4393         } else {
4394                 mpt->trt[lun].enabled = 1;
4395         }
4396         return (0);
4397 }
4398
4399 static int
4400 mpt_disable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4401 {
4402         int i;
4403         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4404                 mpt->twildcard = 0;
4405         } else if (lun >= MPT_MAX_LUNS) {
4406                 return (EINVAL);
4407         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4408                 return (EINVAL);
4409         }
4410         if (lun == CAM_LUN_WILDCARD) {
4411                 mpt->trt_wildcard.enabled = 0;
4412         } else {
4413                 mpt->trt[lun].enabled = 0;
4414         }
4415         for (i = 0; i < MPT_MAX_LUNS; i++) {
4416                 if (mpt->trt[lun].enabled) {
4417                         break;
4418                 }
4419         }
4420         if (i == MPT_MAX_LUNS && mpt->twildcard == 0) {
4421                 if (mpt->is_fc) {
4422                         (void) mpt_fc_reset_link(mpt, 0);
4423                 }
4424                 mpt->tenabled = 0;
4425         }
4426         return (0);
4427 }
4428
4429 /*
4430  * Called with MPT lock held
4431  */
4432 static void
4433 mpt_target_start_io(struct mpt_softc *mpt, union ccb *ccb)
4434 {
4435         struct ccb_scsiio *csio = &ccb->csio;
4436         request_t *cmd_req = MPT_TAG_2_REQ(mpt, csio->tag_id);
4437         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
4438
4439         switch (tgt->state) {
4440         case TGT_STATE_IN_CAM:
4441                 break;
4442         case TGT_STATE_MOVING_DATA:
4443                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4444                 xpt_freeze_simq(mpt->sim, 1);
4445                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4446                 tgt->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4447                 MPTLOCK_2_CAMLOCK(mpt);
4448                 xpt_done(ccb);
4449                 CAMLOCK_2_MPTLOCK(mpt);
4450                 return;
4451         default:
4452                 mpt_prt(mpt, "ccb %p flags 0x%x tag 0x%08x had bad request "
4453                     "starting I/O\n", ccb, csio->ccb_h.flags, csio->tag_id);
4454                 mpt_tgt_dump_req_state(mpt, cmd_req);
4455                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
4456                 MPTLOCK_2_CAMLOCK(mpt);
4457                 xpt_done(ccb);
4458                 CAMLOCK_2_MPTLOCK(mpt);
4459                 return;
4460         }
4461
4462         if (csio->dxfer_len) {
4463                 bus_dmamap_callback_t *cb;
4464                 PTR_MSG_TARGET_ASSIST_REQUEST ta;
4465                 request_t *req;
4466
4467                 KASSERT((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE,
4468                     ("dxfer_len %u but direction is NONE\n", csio->dxfer_len));
4469
4470                 if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4471                         if (mpt->outofbeer == 0) {
4472                                 mpt->outofbeer = 1;
4473                                 xpt_freeze_simq(mpt->sim, 1);
4474                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4475                         }
4476                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4477                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4478                         MPTLOCK_2_CAMLOCK(mpt);
4479                         xpt_done(ccb);
4480                         CAMLOCK_2_MPTLOCK(mpt);
4481                         return;
4482                 }
4483                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4484                 if (sizeof (bus_addr_t) > 4) {
4485                         cb = mpt_execute_req_a64;
4486                 } else {
4487                         cb = mpt_execute_req;
4488                 }
4489
4490                 req->ccb = ccb;
4491                 ccb->ccb_h.ccb_req_ptr = req;
4492
4493                 /*
4494                  * Record the currently active ccb and the
4495                  * request for it in our target state area.
4496                  */
4497                 tgt->ccb = ccb;
4498                 tgt->req = req;
4499
4500                 memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4501                 ta = req->req_vbuf;
4502
4503                 if (mpt->is_sas) {
4504                         PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4505                              cmd_req->req_vbuf;
4506                         ta->QueueTag = ssp->InitiatorTag;
4507                 } else if (mpt->is_spi) {
4508                         PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4509                              cmd_req->req_vbuf;
4510                         ta->QueueTag = sp->Tag;
4511                 }
4512                 ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4513                 ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4514                 ta->ReplyWord = htole32(tgt->reply_desc);
4515                 if (csio->ccb_h.target_lun > MPT_MAX_LUNS) {
4516                         ta->LUN[0] =
4517                             0x40 | ((csio->ccb_h.target_lun >> 8) & 0x3f);
4518                         ta->LUN[1] = csio->ccb_h.target_lun & 0xff;
4519                 } else {
4520                         ta->LUN[1] = csio->ccb_h.target_lun;
4521                 }
4522
4523                 ta->RelativeOffset = tgt->bytes_xfered;
4524                 ta->DataLength = ccb->csio.dxfer_len;
4525                 if (ta->DataLength > tgt->resid) {
4526                         ta->DataLength = tgt->resid;
4527                 }
4528
4529                 /*
4530                  * XXX Should be done after data transfer completes?
4531                  */
4532                 tgt->resid -= csio->dxfer_len;
4533                 tgt->bytes_xfered += csio->dxfer_len;
4534
4535                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
4536                         ta->TargetAssistFlags |=
4537                             TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4538                 }
4539
4540 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4541                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
4542                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
4543                         ta->TargetAssistFlags |=
4544                             TARGET_ASSIST_FLAGS_AUTO_STATUS;
4545                 }
4546 #endif
4547                 tgt->state = TGT_STATE_SETTING_UP_FOR_DATA;
4548
4549                 mpt_lprt(mpt, MPT_PRT_DEBUG,
4550                     "DATA_CCB %p tag %x %u bytes %u resid flg %x req %p:%u "
4551                     "nxtstate=%d\n", csio, csio->tag_id, csio->dxfer_len,
4552                     tgt->resid, ccb->ccb_h.flags, req, req->serno, tgt->state);
4553
4554                 MPTLOCK_2_CAMLOCK(mpt);
4555                 if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
4556                         if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) {
4557                                 int error;
4558                                 error = bus_dmamap_load(mpt->buffer_dmat,
4559                                     req->dmap, csio->data_ptr, csio->dxfer_len,
4560                                     cb, req, 0);
4561                                 if (error == EINPROGRESS) {
4562                                         xpt_freeze_simq(mpt->sim, 1);
4563                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4564                                 }
4565                         } else {
4566                                 /*
4567                                  * We have been given a pointer to single
4568                                  * physical buffer.
4569                                  */
4570                                 struct bus_dma_segment seg;
4571                                 seg.ds_addr = (bus_addr_t)
4572                                     (vm_offset_t)csio->data_ptr;
4573                                 seg.ds_len = csio->dxfer_len;
4574                                 (*cb)(req, &seg, 1, 0);
4575                         }
4576                 } else {
4577                         /*
4578                          * We have been given a list of addresses.
4579                          * This case could be easily supported but they are not
4580                          * currently generated by the CAM subsystem so there
4581                          * is no point in wasting the time right now.
4582                          */
4583                         struct bus_dma_segment *sgs;
4584                         if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
4585                                 (*cb)(req, NULL, 0, EFAULT);
4586                         } else {
4587                                 /* Just use the segments provided */
4588                                 sgs = (struct bus_dma_segment *)csio->data_ptr;
4589                                 (*cb)(req, sgs, csio->sglist_cnt, 0);
4590                         }
4591                 }
4592                 CAMLOCK_2_MPTLOCK(mpt);
4593         } else {
4594                 uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
4595
4596                 /*
4597                  * XXX: I don't know why this seems to happen, but
4598                  * XXX: completing the CCB seems to make things happy.
4599                  * XXX: This seems to happen if the initiator requests
4600                  * XXX: enough data that we have to do multiple CTIOs.
4601                  */
4602                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
4603                         mpt_lprt(mpt, MPT_PRT_DEBUG,
4604                             "Meaningless STATUS CCB (%p): flags %x status %x "
4605                             "resid %d bytes_xfered %u\n", ccb, ccb->ccb_h.flags,
4606                             ccb->ccb_h.status, tgt->resid, tgt->bytes_xfered);
4607                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
4608                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4609                         MPTLOCK_2_CAMLOCK(mpt);
4610                         xpt_done(ccb);
4611                         CAMLOCK_2_MPTLOCK(mpt);
4612                         return;
4613                 }
4614                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
4615                         sp = sense;
4616                         memcpy(sp, &csio->sense_data,
4617                            min(csio->sense_len, MPT_SENSE_SIZE));
4618                 }
4619                 mpt_scsi_tgt_status(mpt, ccb, cmd_req, csio->scsi_status, sp);
4620         }
4621 }
4622
4623 static void
4624 mpt_scsi_tgt_local(struct mpt_softc *mpt, request_t *cmd_req,
4625     uint32_t lun, int send, uint8_t *data, size_t length)
4626 {
4627         mpt_tgt_state_t *tgt;
4628         PTR_MSG_TARGET_ASSIST_REQUEST ta;
4629         SGE_SIMPLE32 *se;
4630         uint32_t flags;
4631         uint8_t *dptr;
4632         bus_addr_t pptr;
4633         request_t *req;
4634
4635         /*
4636          * We enter with resid set to the data load for the command.
4637          */
4638         tgt = MPT_TGT_STATE(mpt, cmd_req);
4639         if (length == 0 || tgt->resid == 0) {
4640                 tgt->resid = 0;
4641                 mpt_scsi_tgt_status(mpt, NULL, cmd_req, 0, NULL);
4642                 return;
4643         }
4644
4645         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4646                 mpt_prt(mpt, "out of resources- dropping local response\n");
4647                 return;
4648         }
4649         tgt->is_local = 1;
4650
4651
4652         memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4653         ta = req->req_vbuf;
4654
4655         if (mpt->is_sas) {
4656                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp = cmd_req->req_vbuf;
4657                 ta->QueueTag = ssp->InitiatorTag;
4658         } else if (mpt->is_spi) {
4659                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp = cmd_req->req_vbuf;
4660                 ta->QueueTag = sp->Tag;
4661         }
4662         ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4663         ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4664         ta->ReplyWord = htole32(tgt->reply_desc);
4665         if (lun > MPT_MAX_LUNS) {
4666                 ta->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4667                 ta->LUN[1] = lun & 0xff;
4668         } else {
4669                 ta->LUN[1] = lun;
4670         }
4671         ta->RelativeOffset = 0;
4672         ta->DataLength = length;
4673
4674         dptr = req->req_vbuf;
4675         dptr += MPT_RQSL(mpt);
4676         pptr = req->req_pbuf;
4677         pptr += MPT_RQSL(mpt);
4678         memcpy(dptr, data, min(length, MPT_RQSL(mpt)));
4679
4680         se = (SGE_SIMPLE32 *) &ta->SGL[0];
4681         memset(se, 0,sizeof (*se));
4682
4683         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
4684         if (send) {
4685                 ta->TargetAssistFlags |= TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4686                 flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
4687         }
4688         se->Address = pptr;
4689         MPI_pSGE_SET_LENGTH(se, length);
4690         flags |= MPI_SGE_FLAGS_LAST_ELEMENT;
4691         flags |= MPI_SGE_FLAGS_END_OF_LIST | MPI_SGE_FLAGS_END_OF_BUFFER;
4692         MPI_pSGE_SET_FLAGS(se, flags);
4693
4694         tgt->ccb = NULL;
4695         tgt->req = req;
4696         tgt->resid -= length;
4697         tgt->bytes_xfered = length;
4698 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4699         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
4700 #else
4701         tgt->state = TGT_STATE_MOVING_DATA;
4702 #endif
4703         mpt_send_cmd(mpt, req);
4704 }
4705
4706 /*
4707  * Abort queued up CCBs
4708  */
4709 static cam_status
4710 mpt_abort_target_ccb(struct mpt_softc *mpt, union ccb *ccb)
4711 {
4712         struct mpt_hdr_stailq *lp;
4713         struct ccb_hdr *srch;
4714         int found = 0;
4715         union ccb *accb = ccb->cab.abort_ccb;
4716         tgt_resource_t *trtp;
4717
4718         mpt_lprt(mpt, MPT_PRT_DEBUG, "aborting ccb %p\n", accb);
4719
4720         if (ccb->ccb_h.target_lun == CAM_LUN_WILDCARD) {
4721                 trtp = &mpt->trt_wildcard;
4722         } else {
4723                 trtp = &mpt->trt[ccb->ccb_h.target_lun];
4724         }
4725
4726         if (accb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
4727                 lp = &trtp->atios;
4728         } else if (accb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
4729                 lp = &trtp->inots;
4730         } else {
4731                 return (CAM_REQ_INVALID);
4732         }
4733
4734         STAILQ_FOREACH(srch, lp, sim_links.stqe) {
4735                 if (srch == &accb->ccb_h) {
4736                         found = 1;
4737                         STAILQ_REMOVE(lp, srch, ccb_hdr, sim_links.stqe);
4738                         break;
4739                 }
4740         }
4741         if (found) {
4742                 accb->ccb_h.status = CAM_REQ_ABORTED;
4743                 xpt_done(accb);
4744                 return (CAM_REQ_CMP);
4745         }
4746         mpt_prt(mpt, "mpt_abort_tgt_ccb: CCB %p not found\n", ccb);
4747         return (CAM_PATH_INVALID);
4748 }
4749
4750 /*
4751  * Ask the MPT to abort the current target command
4752  */
4753 static int
4754 mpt_abort_target_cmd(struct mpt_softc *mpt, request_t *cmd_req)
4755 {
4756         int error;
4757         request_t *req;
4758         PTR_MSG_TARGET_MODE_ABORT abtp;
4759
4760         req = mpt_get_request(mpt, FALSE);
4761         if (req == NULL) {
4762                 return (-1);
4763         }
4764         abtp = req->req_vbuf;
4765         memset(abtp, 0, sizeof (*abtp));
4766
4767         abtp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4768         abtp->AbortType = TARGET_MODE_ABORT_TYPE_EXACT_IO;
4769         abtp->Function = MPI_FUNCTION_TARGET_MODE_ABORT;
4770         abtp->ReplyWord = htole32(MPT_TGT_STATE(mpt, cmd_req)->reply_desc);
4771         error = 0;
4772         if (mpt->is_fc || mpt->is_sas) {
4773                 mpt_send_cmd(mpt, req);
4774         } else {
4775                 error = mpt_send_handshake_cmd(mpt, sizeof(*req), req);
4776         }
4777         return (error);
4778 }
4779
4780 /*
4781  * WE_TRUST_AUTO_GOOD_STATUS- I've found that setting
4782  * TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS leads the
4783  * FC929 to set bogus FC_RSP fields (nonzero residuals
4784  * but w/o RESID fields set). This causes QLogic initiators
4785  * to think maybe that a frame was lost.
4786  *
4787  * WE_CAN_USE_AUTO_REPOST- we can't use AUTO_REPOST because
4788  * we use allocated requests to do TARGET_ASSIST and we
4789  * need to know when to release them.
4790  */
4791
4792 static void
4793 mpt_scsi_tgt_status(struct mpt_softc *mpt, union ccb *ccb, request_t *cmd_req,
4794     uint8_t status, uint8_t const *sense_data)
4795 {
4796         uint8_t *cmd_vbuf;
4797         mpt_tgt_state_t *tgt;
4798         PTR_MSG_TARGET_STATUS_SEND_REQUEST tp;
4799         request_t *req;
4800         bus_addr_t paddr;
4801         int resplen = 0;
4802         uint32_t fl;
4803
4804         cmd_vbuf = cmd_req->req_vbuf;
4805         cmd_vbuf += MPT_RQSL(mpt);
4806         tgt = MPT_TGT_STATE(mpt, cmd_req);
4807
4808         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4809                 if (mpt->outofbeer == 0) {
4810                         mpt->outofbeer = 1;
4811                         xpt_freeze_simq(mpt->sim, 1);
4812                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4813                 }
4814                 if (ccb) {
4815                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4816                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4817                         MPTLOCK_2_CAMLOCK(mpt);
4818                         xpt_done(ccb);
4819                         CAMLOCK_2_MPTLOCK(mpt);
4820                 } else {
4821                         mpt_prt(mpt,
4822                             "could not allocate status request- dropping\n");
4823                 }
4824                 return;
4825         }
4826         req->ccb = ccb;
4827         if (ccb) {
4828                 ccb->ccb_h.ccb_mpt_ptr = mpt;
4829                 ccb->ccb_h.ccb_req_ptr = req;
4830         }
4831
4832         /*
4833          * Record the currently active ccb, if any, and the
4834          * request for it in our target state area.
4835          */
4836         tgt->ccb = ccb;
4837         tgt->req = req;
4838         tgt->state = TGT_STATE_SENDING_STATUS;
4839
4840         tp = req->req_vbuf;
4841         paddr = req->req_pbuf;
4842         paddr += MPT_RQSL(mpt);
4843
4844         memset(tp, 0, sizeof (*tp));
4845         tp->Function = MPI_FUNCTION_TARGET_STATUS_SEND;
4846         if (mpt->is_fc) {
4847                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc =
4848                     (PTR_MPI_TARGET_FCP_CMD_BUFFER) cmd_vbuf;
4849                 uint8_t *sts_vbuf;
4850                 uint32_t *rsp;
4851
4852                 sts_vbuf = req->req_vbuf;
4853                 sts_vbuf += MPT_RQSL(mpt);
4854                 rsp = (uint32_t *) sts_vbuf;
4855                 memcpy(tp->LUN, fc->FcpLun, sizeof (tp->LUN));
4856
4857                 /*
4858                  * The MPI_TARGET_FCP_RSP_BUFFER define is unfortunate.
4859                  * It has to be big-endian in memory and is organized
4860                  * in 32 bit words, which are much easier to deal with
4861                  * as words which are swizzled as needed.
4862                  *
4863                  * All we're filling here is the FC_RSP payload.
4864                  * We may just have the chip synthesize it if
4865                  * we have no residual and an OK status.
4866                  *
4867                  */
4868                 memset(rsp, 0, sizeof (MPI_TARGET_FCP_RSP_BUFFER));
4869
4870                 rsp[2] = status;
4871                 if (tgt->resid) {
4872                         rsp[2] |= 0x800;        /* XXXX NEED MNEMONIC!!!! */
4873                         rsp[3] = htobe32(tgt->resid);
4874 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4875                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4876 #endif
4877                 }
4878                 if (status == SCSI_STATUS_CHECK_COND) {
4879                         int i;
4880
4881                         rsp[2] |= 0x200;        /* XXXX NEED MNEMONIC!!!! */
4882                         rsp[4] = htobe32(MPT_SENSE_SIZE);
4883                         if (sense_data) {
4884                                 memcpy(&rsp[8], sense_data, MPT_SENSE_SIZE);
4885                         } else {
4886                                 mpt_prt(mpt, "mpt_scsi_tgt_status: CHECK CONDI"
4887                                     "TION but no sense data?\n");
4888                                 memset(&rsp, 0, MPT_SENSE_SIZE);
4889                         }
4890                         for (i = 8; i < (8 + (MPT_SENSE_SIZE >> 2)); i++) {
4891                                 rsp[i] = htobe32(rsp[i]);
4892                         }
4893 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4894                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4895 #endif
4896                 }
4897 #ifndef WE_TRUST_AUTO_GOOD_STATUS
4898                 resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4899 #endif
4900                 rsp[2] = htobe32(rsp[2]);
4901         } else if (mpt->is_sas) {
4902                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4903                     (PTR_MPI_TARGET_SSP_CMD_BUFFER) cmd_vbuf;
4904                 memcpy(tp->LUN, ssp->LogicalUnitNumber, sizeof (tp->LUN));
4905         } else {
4906                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4907                     (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) cmd_vbuf;
4908                 tp->StatusCode = status;
4909                 tp->QueueTag = htole16(sp->Tag);
4910                 memcpy(tp->LUN, sp->LogicalUnitNumber, sizeof (tp->LUN));
4911         }
4912
4913         tp->ReplyWord = htole32(tgt->reply_desc);
4914         tp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4915
4916 #ifdef  WE_CAN_USE_AUTO_REPOST
4917         tp->MsgFlags = TARGET_STATUS_SEND_FLAGS_REPOST_CMD_BUFFER;
4918 #endif
4919         if (status == SCSI_STATUS_OK && resplen == 0) {
4920                 tp->MsgFlags |= TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS;
4921         } else {
4922                 tp->StatusDataSGE.u.Address32 = htole32((uint32_t) paddr);
4923                 fl =
4924                         MPI_SGE_FLAGS_HOST_TO_IOC       |
4925                         MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4926                         MPI_SGE_FLAGS_LAST_ELEMENT      |
4927                         MPI_SGE_FLAGS_END_OF_LIST       |
4928                         MPI_SGE_FLAGS_END_OF_BUFFER;
4929                 fl <<= MPI_SGE_FLAGS_SHIFT;
4930                 fl |= resplen;
4931                 tp->StatusDataSGE.FlagsLength = htole32(fl);
4932         }
4933
4934         mpt_lprt(mpt, MPT_PRT_DEBUG,
4935             "STATUS_CCB %p (wit%s sense) tag %x req %p:%u resid %u\n",
4936             ccb, sense_data?"h" : "hout", ccb? ccb->csio.tag_id : -1, req,
4937             req->serno, tgt->resid);
4938         if (ccb) {
4939                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4940                 mpt_req_timeout(req, 60 * hz, mpt_timeout, ccb);
4941         }
4942         mpt_send_cmd(mpt, req);
4943 }
4944
4945 static void
4946 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *mpt, request_t *req, mpt_task_mgmt_t fc,
4947     tgt_resource_t *trtp, int init_id)
4948 {
4949         struct ccb_immed_notify *inot;
4950         mpt_tgt_state_t *tgt;
4951
4952         tgt = MPT_TGT_STATE(mpt, req);
4953         inot = (struct ccb_immed_notify *) STAILQ_FIRST(&trtp->inots);
4954         if (inot == NULL) {
4955                 mpt_lprt(mpt, MPT_PRT_WARN, "no INOTSs- sending back BSY\n");
4956                 mpt_scsi_tgt_status(mpt, NULL, req, SCSI_STATUS_BUSY, NULL);
4957                 return;
4958         }
4959         STAILQ_REMOVE_HEAD(&trtp->inots, sim_links.stqe);
4960         mpt_lprt(mpt, MPT_PRT_DEBUG1,
4961             "Get FREE INOT %p lun %d\n", inot, inot->ccb_h.target_lun);
4962
4963         memset(&inot->sense_data, 0, sizeof (inot->sense_data));
4964         inot->sense_len = 0;
4965         memset(inot->message_args, 0, sizeof (inot->message_args));
4966         inot->initiator_id = init_id;   /* XXX */
4967
4968         /*
4969          * This is a somewhat grotesque attempt to map from task management
4970          * to old style SCSI messages. God help us all.
4971          */
4972         switch (fc) {
4973         case MPT_ABORT_TASK_SET:
4974                 inot->message_args[0] = MSG_ABORT_TAG;
4975                 break;
4976         case MPT_CLEAR_TASK_SET:
4977                 inot->message_args[0] = MSG_CLEAR_TASK_SET;
4978                 break;
4979         case MPT_TARGET_RESET:
4980                 inot->message_args[0] = MSG_TARGET_RESET;
4981                 break;
4982         case MPT_CLEAR_ACA:
4983                 inot->message_args[0] = MSG_CLEAR_ACA;
4984                 break;
4985         case MPT_TERMINATE_TASK:
4986                 inot->message_args[0] = MSG_ABORT_TAG;
4987                 break;
4988         default:
4989                 inot->message_args[0] = MSG_NOOP;
4990                 break;
4991         }
4992         tgt->ccb = (union ccb *) inot;
4993         inot->ccb_h.status = CAM_MESSAGE_RECV|CAM_DEV_QFRZN;
4994         MPTLOCK_2_CAMLOCK(mpt);
4995         xpt_done((union ccb *)inot);
4996         CAMLOCK_2_MPTLOCK(mpt);
4997 }
4998
4999 static void
5000 mpt_scsi_tgt_atio(struct mpt_softc *mpt, request_t *req, uint32_t reply_desc)
5001 {
5002         static uint8_t null_iqd[SHORT_INQUIRY_LENGTH] = {
5003             0x7f, 0x00, 0x02, 0x02, 0x20, 0x00, 0x00, 0x32,
5004              'F',  'R',  'E',  'E',  'B',  'S',  'D',  ' ',
5005              'L',  'S',  'I',  '-',  'L',  'O',  'G',  'I',
5006              'C',  ' ',  'N',  'U',  'L',  'D',  'E',  'V',
5007              '0',  '0',  '0',  '1'
5008         };
5009         struct ccb_accept_tio *atiop;
5010         lun_id_t lun;
5011         int tag_action = 0;
5012         mpt_tgt_state_t *tgt;
5013         tgt_resource_t *trtp = NULL;
5014         U8 *lunptr;
5015         U8 *vbuf;
5016         U16 itag;
5017         U16 ioindex;
5018         mpt_task_mgmt_t fct = MPT_NIL_TMT_VALUE;
5019         uint8_t *cdbp;
5020
5021         /*
5022          * First, DMA sync the received command-
5023          * which is in the *request* * phys area.
5024          *
5025          * XXX: We could optimize this for a range
5026          */
5027         bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
5028             BUS_DMASYNC_POSTREAD);
5029
5030         /*
5031          * Stash info for the current command where we can get at it later.
5032          */
5033         vbuf = req->req_vbuf;
5034         vbuf += MPT_RQSL(mpt);
5035
5036         /*
5037          * Get our state pointer set up.
5038          */
5039         tgt = MPT_TGT_STATE(mpt, req);
5040         if (tgt->state != TGT_STATE_LOADED) {
5041                 mpt_tgt_dump_req_state(mpt, req);
5042                 panic("bad target state in mpt_scsi_tgt_atio");
5043         }
5044         memset(tgt, 0, sizeof (mpt_tgt_state_t));
5045         tgt->state = TGT_STATE_IN_CAM;
5046         tgt->reply_desc = reply_desc;
5047         ioindex = GET_IO_INDEX(reply_desc);
5048         if (mpt->verbose >= MPT_PRT_DEBUG) {
5049                 mpt_dump_data(mpt, "mpt_scsi_tgt_atio response", vbuf,
5050                     max(sizeof (MPI_TARGET_FCP_CMD_BUFFER),
5051                     max(sizeof (MPI_TARGET_SSP_CMD_BUFFER),
5052                     sizeof (MPI_TARGET_SCSI_SPI_CMD_BUFFER))));
5053         }
5054         if (mpt->is_fc) {
5055                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc;
5056                 fc = (PTR_MPI_TARGET_FCP_CMD_BUFFER) vbuf;
5057                 if (fc->FcpCntl[2]) {
5058                         /*
5059                          * Task Management Request
5060                          */
5061                         switch (fc->FcpCntl[2]) {
5062                         case 0x2:
5063                                 fct = MPT_ABORT_TASK_SET;
5064                                 break;
5065                         case 0x4:
5066                                 fct = MPT_CLEAR_TASK_SET;
5067                                 break;
5068                         case 0x20:
5069                                 fct = MPT_TARGET_RESET;
5070                                 break;
5071                         case 0x40:
5072                                 fct = MPT_CLEAR_ACA;
5073                                 break;
5074                         case 0x80:
5075                                 fct = MPT_TERMINATE_TASK;
5076                                 break;
5077                         default:
5078                                 mpt_prt(mpt, "CORRUPTED TASK MGMT BITS: 0x%x\n",
5079                                     fc->FcpCntl[2]);
5080                                 mpt_scsi_tgt_status(mpt, 0, req,
5081                                     SCSI_STATUS_OK, 0);
5082                                 return;
5083                         }
5084                 } else {
5085                         switch (fc->FcpCntl[1]) {
5086                         case 0:
5087                                 tag_action = MSG_SIMPLE_Q_TAG;
5088                                 break;
5089                         case 1:
5090                                 tag_action = MSG_HEAD_OF_Q_TAG;
5091                                 break;
5092                         case 2:
5093                                 tag_action = MSG_ORDERED_Q_TAG;
5094                                 break;
5095                         default:
5096                                 /*
5097                                  * Bah. Ignore Untagged Queing and ACA
5098                                  */
5099                                 tag_action = MSG_SIMPLE_Q_TAG;
5100                                 break;
5101                         }
5102                 }
5103                 tgt->resid = be32toh(fc->FcpDl);
5104                 cdbp = fc->FcpCdb;
5105                 lunptr = fc->FcpLun;
5106                 itag = be16toh(fc->OptionalOxid);
5107         } else if (mpt->is_sas) {
5108                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp;
5109                 ssp = (PTR_MPI_TARGET_SSP_CMD_BUFFER) vbuf;
5110                 cdbp = ssp->CDB;
5111                 lunptr = ssp->LogicalUnitNumber;
5112                 itag = ssp->InitiatorTag;
5113         } else {
5114                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp;
5115                 sp = (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) vbuf;
5116                 cdbp = sp->CDB;
5117                 lunptr = sp->LogicalUnitNumber;
5118                 itag = sp->Tag;
5119         }
5120
5121         /*
5122          * Generate a simple lun
5123          */
5124         switch (lunptr[0] & 0xc0) {
5125         case 0x40:
5126                 lun = ((lunptr[0] & 0x3f) << 8) | lunptr[1];
5127                 break;
5128         case 0:
5129                 lun = lunptr[1];
5130                 break;
5131         default:
5132                 mpt_lprt(mpt, MPT_PRT_ERROR, "cannot handle this type lun\n");
5133                 lun = 0xffff;
5134                 break;
5135         }
5136
5137         /*
5138          * Deal with non-enabled or bad luns here.
5139          */
5140         if (lun >= MPT_MAX_LUNS || mpt->tenabled == 0 ||
5141             mpt->trt[lun].enabled == 0) {
5142                 if (mpt->twildcard) {
5143                         trtp = &mpt->trt_wildcard;
5144                 } else if (fct == MPT_NIL_TMT_VALUE) {
5145                         /*
5146                          * In this case, we haven't got an upstream listener
5147                          * for either a specific lun or wildcard luns. We
5148                          * have to make some sensible response. For regular
5149                          * inquiry, just return some NOT HERE inquiry data.
5150                          * For VPD inquiry, report illegal field in cdb.
5151                          * For REQUEST SENSE, just return NO SENSE data.
5152                          * REPORT LUNS gets illegal command.
5153                          * All other commands get 'no such device'.
5154                          */
5155                         uint8_t *sp, cond, buf[MPT_SENSE_SIZE];
5156                         size_t len;
5157
5158                         memset(buf, 0, MPT_SENSE_SIZE);
5159                         cond = SCSI_STATUS_CHECK_COND;
5160                         buf[0] = 0xf0;
5161                         buf[2] = 0x5;
5162                         buf[7] = 0x8;
5163                         sp = buf;
5164                         tgt->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5165
5166                         switch (cdbp[0]) {
5167                         case INQUIRY:
5168                         {
5169                                 if (cdbp[1] != 0) {
5170                                         buf[12] = 0x26;
5171                                         buf[13] = 0x01;
5172                                         break;
5173                                 }
5174                                 len = min(tgt->resid, cdbp[4]);
5175                                 len = min(len, sizeof (null_iqd));
5176                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5177                                     "local inquiry %ld bytes\n", (long) len);
5178                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5179                                     null_iqd, len);
5180                                 return;
5181                         }
5182                         case REQUEST_SENSE:
5183                         {
5184                                 buf[2] = 0x0;
5185                                 len = min(tgt->resid, cdbp[4]);
5186                                 len = min(len, sizeof (buf));
5187                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5188                                     "local reqsense %ld bytes\n", (long) len);
5189                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5190                                     buf, len);
5191                                 return;
5192                         }
5193                         case REPORT_LUNS:
5194                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "REPORT LUNS\n");
5195                                 buf[12] = 0x26;
5196                                 return;
5197                         default:
5198                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5199                                     "CMD 0x%x to unmanaged lun %u\n",
5200                                     cdbp[0], lun);
5201                                 buf[12] = 0x25;
5202                                 break;
5203                         }
5204                         mpt_scsi_tgt_status(mpt, NULL, req, cond, sp);
5205                         return;
5206                 }
5207                 /* otherwise, leave trtp NULL */
5208         } else {
5209                 trtp = &mpt->trt[lun];
5210         }
5211
5212         /*
5213          * Deal with any task management
5214          */
5215         if (fct != MPT_NIL_TMT_VALUE) {
5216                 if (trtp == NULL) {
5217                         mpt_prt(mpt, "task mgmt function %x but no listener\n",
5218                             fct);
5219                         mpt_scsi_tgt_status(mpt, 0, req,
5220                             SCSI_STATUS_OK, 0);
5221                 } else {
5222                         mpt_scsi_tgt_tsk_mgmt(mpt, req, fct, trtp,
5223                             GET_INITIATOR_INDEX(reply_desc));
5224                 }
5225                 return;
5226         }
5227
5228
5229         atiop = (struct ccb_accept_tio *) STAILQ_FIRST(&trtp->atios);
5230         if (atiop == NULL) {
5231                 mpt_lprt(mpt, MPT_PRT_WARN,
5232                     "no ATIOs for lun %u- sending back %s\n", lun,
5233                     mpt->tenabled? "QUEUE FULL" : "BUSY");
5234                 mpt_scsi_tgt_status(mpt, NULL, req,
5235                     mpt->tenabled? SCSI_STATUS_QUEUE_FULL : SCSI_STATUS_BUSY,
5236                     NULL);
5237                 return;
5238         }
5239         STAILQ_REMOVE_HEAD(&trtp->atios, sim_links.stqe);
5240         mpt_lprt(mpt, MPT_PRT_DEBUG1,
5241             "Get FREE ATIO %p lun %d\n", atiop, atiop->ccb_h.target_lun);
5242         atiop->ccb_h.ccb_mpt_ptr = mpt;
5243         atiop->ccb_h.status = CAM_CDB_RECVD;
5244         atiop->ccb_h.target_lun = lun;
5245         atiop->sense_len = 0;
5246         atiop->init_id = GET_INITIATOR_INDEX(reply_desc);
5247         atiop->cdb_len = mpt_cdblen(cdbp[0], 16);
5248         memcpy(atiop->cdb_io.cdb_bytes, cdbp, atiop->cdb_len);
5249
5250         /*
5251          * The tag we construct here allows us to find the
5252          * original request that the command came in with.
5253          *
5254          * This way we don't have to depend on anything but the
5255          * tag to find things when CCBs show back up from CAM.
5256          */
5257         atiop->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5258         tgt->tag_id = atiop->tag_id;
5259         if (tag_action) {
5260                 atiop->tag_action = tag_action;
5261                 atiop->ccb_h.flags = CAM_TAG_ACTION_VALID;
5262         }
5263         if (mpt->verbose >= MPT_PRT_DEBUG) {
5264                 int i;
5265                 mpt_prt(mpt, "START_CCB %p for lun %u CDB=<", atiop,
5266                     atiop->ccb_h.target_lun);
5267                 for (i = 0; i < atiop->cdb_len; i++) {
5268                         mpt_prtc(mpt, "%02x%c", cdbp[i] & 0xff,
5269                             (i == (atiop->cdb_len - 1))? '>' : ' ');
5270                 }
5271                 mpt_prtc(mpt, " itag %x tag %x rdesc %x dl=%u\n",
5272                          itag, atiop->tag_id, tgt->reply_desc, tgt->resid);
5273         }
5274
5275         MPTLOCK_2_CAMLOCK(mpt);
5276         xpt_done((union ccb *)atiop);
5277         CAMLOCK_2_MPTLOCK(mpt);
5278 }
5279
5280 static void
5281 mpt_tgt_dump_tgt_state(struct mpt_softc *mpt, request_t *req)
5282 {
5283         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5284
5285         mpt_prt(mpt, "req %p:%u tgt:rdesc 0x%x resid %u xfrd %u ccb %p treq %p "
5286             "nx %d tag 0x%08x state=%d\n", req, req->serno, tgt->reply_desc,
5287             tgt->resid, tgt->bytes_xfered, tgt->ccb, tgt->req, tgt->nxfers,
5288             tgt->tag_id, tgt->state);
5289 }
5290
5291 static void
5292 mpt_tgt_dump_req_state(struct mpt_softc *mpt, request_t *req)
5293 {
5294         mpt_prt(mpt, "req %p:%u index %u (%x) state %x\n", req, req->serno,
5295             req->index, req->index, req->state);
5296         mpt_tgt_dump_tgt_state(mpt, req);
5297 }
5298
5299 static int
5300 mpt_scsi_tgt_reply_handler(struct mpt_softc *mpt, request_t *req,
5301     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
5302 {
5303         int dbg;
5304         union ccb *ccb;
5305         U16 status;
5306
5307         if (reply_frame == NULL) {
5308                 /*
5309                  * Figure out what the state of the command is.
5310                  */
5311                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5312
5313 #ifdef  INVARIANTS
5314                 mpt_req_spcl(mpt, req, "turbo scsi_tgt_reply", __LINE__);
5315                 if (tgt->req) {
5316                         mpt_req_not_spcl(mpt, tgt->req,
5317                             "turbo scsi_tgt_reply associated req", __LINE__);
5318                 }
5319 #endif
5320                 switch(tgt->state) {
5321                 case TGT_STATE_LOADED:
5322                         /*
5323                          * This is a new command starting.
5324                          */
5325                         mpt_scsi_tgt_atio(mpt, req, reply_desc);
5326                         break;
5327                 case TGT_STATE_MOVING_DATA:
5328                 {
5329                         uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
5330
5331                         ccb = tgt->ccb;
5332                         if (tgt->req == NULL) {
5333                                 panic("mpt: turbo target reply with null "
5334                                     "associated request moving data");
5335                                 /* NOTREACHED */
5336                         }
5337                         if (ccb == NULL) {
5338                                 if (tgt->is_local == 0) {
5339                                         panic("mpt: turbo target reply with "
5340                                             "null associated ccb moving data");
5341                                         /* NOTREACHED */
5342                                 }
5343                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5344                                     "TARGET_ASSIST local done\n");
5345                                 TAILQ_REMOVE(&mpt->request_pending_list,
5346                                     tgt->req, links);
5347                                 mpt_free_request(mpt, tgt->req);
5348                                 tgt->req = NULL;
5349                                 mpt_scsi_tgt_status(mpt, NULL, req,
5350                                     0, NULL);
5351                                 return (TRUE);
5352                         }
5353                         tgt->ccb = NULL;
5354                         tgt->nxfers++;
5355                         mpt_req_untimeout(req, mpt_timeout, ccb);
5356                         mpt_lprt(mpt, MPT_PRT_DEBUG,
5357                             "TARGET_ASSIST %p (req %p:%u) done tag 0x%x\n",
5358                             ccb, tgt->req, tgt->req->serno, ccb->csio.tag_id);
5359                         /*
5360                          * Free the Target Assist Request
5361                          */
5362                         KASSERT(tgt->req->ccb == ccb,
5363                             ("tgt->req %p:%u tgt->req->ccb %p", tgt->req,
5364                             tgt->req->serno, tgt->req->ccb));
5365                         TAILQ_REMOVE(&mpt->request_pending_list,
5366                             tgt->req, links);
5367                         mpt_free_request(mpt, tgt->req);
5368                         tgt->req = NULL;
5369
5370                         /*
5371                          * Do we need to send status now? That is, are
5372                          * we done with all our data transfers?
5373                          */
5374                         if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
5375                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5376                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5377                                 KASSERT(ccb->ccb_h.status,
5378                                     ("zero ccb sts at %d\n", __LINE__));
5379                                 tgt->state = TGT_STATE_IN_CAM;
5380                                 if (mpt->outofbeer) {
5381                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5382                                         mpt->outofbeer = 0;
5383                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5384                                 }
5385                                 MPTLOCK_2_CAMLOCK(mpt);
5386                                 xpt_done(ccb);
5387                                 CAMLOCK_2_MPTLOCK(mpt);
5388                                 break;
5389                         }
5390                         /*
5391                          * Otherwise, send status (and sense)
5392                          */
5393                         if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5394                                 sp = sense;
5395                                 memcpy(sp, &ccb->csio.sense_data,
5396                                    min(ccb->csio.sense_len, MPT_SENSE_SIZE));
5397                         }
5398                         mpt_scsi_tgt_status(mpt, ccb, req,
5399                             ccb->csio.scsi_status, sp);
5400                         break;
5401                 }
5402                 case TGT_STATE_SENDING_STATUS:
5403                 case TGT_STATE_MOVING_DATA_AND_STATUS:
5404                 {
5405                         int ioindex;
5406                         ccb = tgt->ccb;
5407
5408                         if (tgt->req == NULL) {
5409                                 panic("mpt: turbo target reply with null "
5410                                     "associated request sending status");
5411                                 /* NOTREACHED */
5412                         }
5413
5414                         if (ccb) {
5415                                 tgt->ccb = NULL;
5416                                 if (tgt->state ==
5417                                     TGT_STATE_MOVING_DATA_AND_STATUS) {
5418                                         tgt->nxfers++;
5419                                 }
5420                                 mpt_req_untimeout(req, mpt_timeout, ccb);
5421                                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5422                                         ccb->ccb_h.status |= CAM_SENT_SENSE;
5423                                 }
5424                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5425                                     "TARGET_STATUS tag %x sts %x flgs %x req "
5426                                     "%p\n", ccb->csio.tag_id, ccb->ccb_h.status,
5427                                     ccb->ccb_h.flags, tgt->req);
5428                                 /*
5429                                  * Free the Target Send Status Request
5430                                  */
5431                                 KASSERT(tgt->req->ccb == ccb,
5432                                     ("tgt->req %p:%u tgt->req->ccb %p",
5433                                     tgt->req, tgt->req->serno, tgt->req->ccb));
5434                                 /*
5435                                  * Notify CAM that we're done
5436                                  */
5437                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5438                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5439                                 KASSERT(ccb->ccb_h.status,
5440                                     ("ZERO ccb sts at %d\n", __LINE__));
5441                                 tgt->ccb = NULL;
5442                         } else {
5443                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5444                                     "TARGET_STATUS non-CAM for  req %p:%u\n",
5445                                     tgt->req, tgt->req->serno);
5446                         }
5447                         TAILQ_REMOVE(&mpt->request_pending_list,
5448                             tgt->req, links);
5449                         mpt_free_request(mpt, tgt->req);
5450                         tgt->req = NULL;
5451
5452                         /*
5453                          * And re-post the Command Buffer.
5454                          * This will reset the state.
5455                          */
5456                         ioindex = GET_IO_INDEX(reply_desc);
5457                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5458                         tgt->is_local = 0;
5459                         mpt_post_target_command(mpt, req, ioindex);
5460
5461                         /*
5462                          * And post a done for anyone who cares
5463                          */
5464                         if (ccb) {
5465                                 if (mpt->outofbeer) {
5466                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5467                                         mpt->outofbeer = 0;
5468                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5469                                 }
5470                                 MPTLOCK_2_CAMLOCK(mpt);
5471                                 xpt_done(ccb);
5472                                 CAMLOCK_2_MPTLOCK(mpt);
5473                         }
5474                         break;
5475                 }
5476                 case TGT_STATE_NIL:     /* XXX This Never Happens XXX */
5477                         tgt->state = TGT_STATE_LOADED;
5478                         break;
5479                 default:
5480                         mpt_prt(mpt, "Unknown Target State 0x%x in Context "
5481                             "Reply Function\n", tgt->state);
5482                 }
5483                 return (TRUE);
5484         }
5485
5486         status = le16toh(reply_frame->IOCStatus);
5487         if (status != MPI_IOCSTATUS_SUCCESS) {
5488                 dbg = MPT_PRT_ERROR;
5489         } else {
5490                 dbg = MPT_PRT_DEBUG1;
5491         }
5492
5493         mpt_lprt(mpt, dbg,
5494             "SCSI_TGT REPLY: req=%p:%u reply=%p func=%x IOCstatus 0x%x\n",
5495              req, req->serno, reply_frame, reply_frame->Function, status);
5496
5497         switch (reply_frame->Function) {
5498         case MPI_FUNCTION_TARGET_CMD_BUFFER_POST:
5499         {
5500                 mpt_tgt_state_t *tgt;
5501 #ifdef  INVARIANTS
5502                 mpt_req_spcl(mpt, req, "tgt reply BUFFER POST", __LINE__);
5503 #endif
5504                 if (status != MPI_IOCSTATUS_SUCCESS) {
5505                         /*
5506                          * XXX What to do?
5507                          */
5508                         break;
5509                 }
5510                 tgt = MPT_TGT_STATE(mpt, req);
5511                 KASSERT(tgt->state == TGT_STATE_LOADING,
5512                     ("bad state 0x%x on reply to buffer post\n", tgt->state));
5513                 mpt_assign_serno(mpt, req);
5514                 tgt->state = TGT_STATE_LOADED;
5515                 break;
5516         }
5517         case MPI_FUNCTION_TARGET_ASSIST:
5518 #ifdef  INVARIANTS
5519                 mpt_req_not_spcl(mpt, req, "tgt reply TARGET ASSIST", __LINE__);
5520 #endif
5521                 mpt_prt(mpt, "target assist completion\n");
5522                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5523                 mpt_free_request(mpt, req);
5524                 break;
5525         case MPI_FUNCTION_TARGET_STATUS_SEND:
5526 #ifdef  INVARIANTS
5527                 mpt_req_not_spcl(mpt, req, "tgt reply STATUS SEND", __LINE__);
5528 #endif
5529                 mpt_prt(mpt, "status send completion\n");
5530                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5531                 mpt_free_request(mpt, req);
5532                 break;
5533         case MPI_FUNCTION_TARGET_MODE_ABORT:
5534         {
5535                 PTR_MSG_TARGET_MODE_ABORT_REPLY abtrp =
5536                     (PTR_MSG_TARGET_MODE_ABORT_REPLY) reply_frame;
5537                 PTR_MSG_TARGET_MODE_ABORT abtp =
5538                     (PTR_MSG_TARGET_MODE_ABORT) req->req_vbuf;
5539                 uint32_t cc = GET_IO_INDEX(le32toh(abtp->ReplyWord));
5540 #ifdef  INVARIANTS
5541                 mpt_req_not_spcl(mpt, req, "tgt reply TMODE ABORT", __LINE__);
5542 #endif
5543                 mpt_prt(mpt, "ABORT RX_ID 0x%x Complete; status 0x%x cnt %u\n",
5544                     cc, le16toh(abtrp->IOCStatus), le32toh(abtrp->AbortCount));
5545                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5546                 mpt_free_request(mpt, req);
5547                 break;
5548         }
5549         default:
5550                 mpt_prt(mpt, "Unknown Target Address Reply Function code: "
5551                     "0x%x\n", reply_frame->Function);
5552                 break;
5553         }
5554         return (TRUE);
5555 }