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 1.77 2011/04/22 09:59:16 marius 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 #include <sys/sysctl.h>
 109 #include <sys/callout.h>
 110 #include <sys/kthread.h>
 111
 112 #ifndef CAM_NEW_TRAN_CODE
 113 #define CAM_NEW_TRAN_CODE       1
 114 #endif
 115
 116 static void mpt_poll(struct cam_sim *);
 117 static timeout_t mpt_timeout;
 118 static void mpt_action(struct cam_sim *, union ccb *);
 119 static int
 120 mpt_get_spi_settings(struct mpt_softc *, struct ccb_trans_settings *);
 121 static void mpt_setwidth(struct mpt_softc *, int, int);
 122 static void mpt_setsync(struct mpt_softc *, int, int, int);
 123 static int mpt_update_spi_config(struct mpt_softc *, int);
 124 static void mpt_calc_geometry(struct ccb_calc_geometry *ccg, int extended);
 125
 126 static mpt_reply_handler_t mpt_scsi_reply_handler;
 127 static mpt_reply_handler_t mpt_scsi_tmf_reply_handler;
 128 static mpt_reply_handler_t mpt_fc_els_reply_handler;
 129 static int mpt_scsi_reply_frame_handler(struct mpt_softc *, request_t *,
 130                                         MSG_DEFAULT_REPLY *);
 131 static int mpt_bus_reset(struct mpt_softc *, target_id_t, lun_id_t, int);
 132 static int mpt_fc_reset_link(struct mpt_softc *, int);
 133
 134 static int mpt_spawn_recovery_thread(struct mpt_softc *mpt);
 135 static void mpt_terminate_recovery_thread(struct mpt_softc *mpt);
 136 static void mpt_recovery_thread(void *arg);
 137 static void mpt_recover_commands(struct mpt_softc *mpt);
 138
 139 static int mpt_scsi_send_tmf(struct mpt_softc *, u_int, u_int, u_int,
 140     u_int, u_int, u_int, int);
 141
 142 static void mpt_fc_post_els(struct mpt_softc *mpt, request_t *, int);
 143 static void mpt_post_target_command(struct mpt_softc *, request_t *, int);
 144 static int mpt_add_els_buffers(struct mpt_softc *mpt);
 145 static int mpt_add_target_commands(struct mpt_softc *mpt);
 146 static int mpt_enable_lun(struct mpt_softc *, target_id_t, lun_id_t);
 147 static int mpt_disable_lun(struct mpt_softc *, target_id_t, lun_id_t);
 148 static void mpt_target_start_io(struct mpt_softc *, union ccb *);
 149 static cam_status mpt_abort_target_ccb(struct mpt_softc *, union ccb *);
 150 static int mpt_abort_target_cmd(struct mpt_softc *, request_t *);
 151 static void mpt_scsi_tgt_status(struct mpt_softc *, union ccb *, request_t *,
 152     uint8_t, uint8_t const *);
 153 static void
 154 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *, request_t *, mpt_task_mgmt_t,
 155     tgt_resource_t *, int);
 156 static void mpt_tgt_dump_tgt_state(struct mpt_softc *, request_t *);
 157 static void mpt_tgt_dump_req_state(struct mpt_softc *, request_t *);
 158 static mpt_reply_handler_t mpt_scsi_tgt_reply_handler;
 159 static mpt_reply_handler_t mpt_sata_pass_reply_handler;
 160
 161 static uint32_t scsi_io_handler_id = MPT_HANDLER_ID_NONE;
 162 static uint32_t scsi_tmf_handler_id = MPT_HANDLER_ID_NONE;
 163 static uint32_t fc_els_handler_id = MPT_HANDLER_ID_NONE;
 164 static uint32_t sata_pass_handler_id = MPT_HANDLER_ID_NONE;
 165
 166 static mpt_probe_handler_t      mpt_cam_probe;
 167 static mpt_attach_handler_t     mpt_cam_attach;
 168 static mpt_enable_handler_t     mpt_cam_enable;
 169 static mpt_ready_handler_t      mpt_cam_ready;
 170 static mpt_event_handler_t      mpt_cam_event;
 171 static mpt_reset_handler_t      mpt_cam_ioc_reset;
 172 static mpt_detach_handler_t     mpt_cam_detach;
 173
 174 static struct mpt_personality mpt_cam_personality =
 175 {
 176         .name           = "mpt_cam",
 177         .probe          = mpt_cam_probe,
 178         .attach         = mpt_cam_attach,
 179         .enable         = mpt_cam_enable,
 180         .ready          = mpt_cam_ready,
 181         .event          = mpt_cam_event,
 182         .reset          = mpt_cam_ioc_reset,
 183         .detach         = mpt_cam_detach,
 184 };
 185
 186 DECLARE_MPT_PERSONALITY(mpt_cam, SI_ORDER_SECOND);
 187 MODULE_DEPEND(mpt_cam, cam, 1, 1, 1);
 188
 189 int mpt_enable_sata_wc = -1;
 190 TUNABLE_INT("hw.mpt.enable_sata_wc", &mpt_enable_sata_wc);
 191
 192 int
 193 mpt_cam_probe(struct mpt_softc *mpt)
 194 {
 195         int role;
 196
 197         /*
 198          * Only attach to nodes that support the initiator or target role
 199          * (or want to) or have RAID physical devices that need CAM pass-thru
 200          * support.
 201          */
 202         if (mpt->do_cfg_role) {
 203                 role = mpt->cfg_role;
 204         } else {
 205                 role = mpt->role;
 206         }
 207         if ((role & (MPT_ROLE_TARGET|MPT_ROLE_INITIATOR)) != 0 ||
 208             (mpt->ioc_page2 != NULL && mpt->ioc_page2->MaxPhysDisks != 0)) {
 209                 return (0);
 210         }
 211         return (ENODEV);
 212 }
 213
 214 int
 215 mpt_cam_attach(struct mpt_softc *mpt)
 216 {
 217         struct cam_devq *devq;
 218         mpt_handler_t    handler;
 219         int              maxq;
 220         int              error;
 221
 222         MPT_LOCK(mpt);
 223         TAILQ_INIT(&mpt->request_timeout_list);
 224         maxq = (mpt->ioc_facts.GlobalCredits < MPT_MAX_REQUESTS(mpt))?
 225             mpt->ioc_facts.GlobalCredits : MPT_MAX_REQUESTS(mpt);
 226
 227         handler.reply_handler = mpt_scsi_reply_handler;
 228         error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 229                                      &scsi_io_handler_id);
 230         if (error != 0) {
 231                 MPT_UNLOCK(mpt);
 232                 goto cleanup;
 233         }
 234
 235         handler.reply_handler = mpt_scsi_tmf_reply_handler;
 236         error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 237                                      &scsi_tmf_handler_id);
 238         if (error != 0) {
 239                 MPT_UNLOCK(mpt);
 240                 goto cleanup;
 241         }
 242
 243         /*
 244          * If we're fibre channel and could support target mode, we register
 245          * an ELS reply handler and give it resources.
 246          */
 247         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET) != 0) {
 248                 handler.reply_handler = mpt_fc_els_reply_handler;
 249                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 250                     &fc_els_handler_id);
 251                 if (error != 0) {
 252                         MPT_UNLOCK(mpt);
 253                         goto cleanup;
 254                 }
 255                 if (mpt_add_els_buffers(mpt) == FALSE) {
 256                         error = ENOMEM;
 257                         MPT_UNLOCK(mpt);
 258                         goto cleanup;
 259                 }
 260                 maxq -= mpt->els_cmds_allocated;
 261         }
 262
 263         /*
 264          * If we support target mode, we register a reply handler for it,
 265          * but don't add command resources until we actually enable target
 266          * mode.
 267          */
 268         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET) != 0) {
 269                 handler.reply_handler = mpt_scsi_tgt_reply_handler;
 270                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 271                     &mpt->scsi_tgt_handler_id);
 272                 if (error != 0) {
 273                         MPT_UNLOCK(mpt);
 274                         goto cleanup;
 275                 }
 276         }
 277
 278         if (mpt->is_sas) {
 279                 handler.reply_handler = mpt_sata_pass_reply_handler;
 280                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 281                     &sata_pass_handler_id);
 282                 if (error != 0) {
 283                         MPT_UNLOCK(mpt);
 284                         goto cleanup;
 285                 }
 286         }
 287
 288         /*
 289          * We keep one request reserved for timeout TMF requests.
 290          */
 291         mpt->tmf_req = mpt_get_request(mpt, FALSE);
 292         if (mpt->tmf_req == NULL) {
 293                 mpt_prt(mpt, "Unable to allocate dedicated TMF request!\n");
 294                 error = ENOMEM;
 295                 MPT_UNLOCK(mpt);
 296                 goto cleanup;
 297         }
 298
 299         /*
 300          * Mark the request as free even though not on the free list.
 301          * There is only one TMF request allowed to be outstanding at
 302          * a time and the TMF routines perform their own allocation
 303          * tracking using the standard state flags.
 304          */
 305         mpt->tmf_req->state = REQ_STATE_FREE;
 306         maxq--;
 307
 308         /*
 309          * The rest of this is CAM foo, for which we need to drop our lock
 310          */
 311         MPT_UNLOCK(mpt);
 312
 313         if (mpt_spawn_recovery_thread(mpt) != 0) {
 314                 mpt_prt(mpt, "Unable to spawn recovery thread!\n");
 315                 error = ENOMEM;
 316                 goto cleanup;
 317         }
 318
 319         /*
 320          * Create the device queue for our SIM(s).
 321          */
 322         devq = cam_simq_alloc(maxq);
 323         if (devq == NULL) {
 324                 mpt_prt(mpt, "Unable to allocate CAM SIMQ!\n");
 325                 error = ENOMEM;
 326                 goto cleanup;
 327         }
 328
 329         /*
 330          * Construct our SIM entry.
 331          */
 332         mpt->sim =
 333             mpt_sim_alloc(mpt_action, mpt_poll, "mpt", mpt, 1, maxq, devq);
 334         if (mpt->sim == NULL) {
 335                 mpt_prt(mpt, "Unable to allocate CAM SIM!\n");
 336                 cam_devq_release(devq);
 337                 error = ENOMEM;
 338                 goto cleanup;
 339         }
 340
 341         /*
 342          * Register exactly this bus.
 343          */
 344         MPT_LOCK(mpt);
 345         if (mpt_xpt_bus_register(mpt->sim, mpt->dev, 0) != CAM_SUCCESS) {
 346                 mpt_prt(mpt, "Bus registration Failed!\n");
 347                 error = ENOMEM;
 348                 MPT_UNLOCK(mpt);
 349                 goto cleanup;
 350         }
 351
 352         if (xpt_create_path(&mpt->path, NULL, cam_sim_path(mpt->sim),
 353             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 354                 mpt_prt(mpt, "Unable to allocate Path!\n");
 355                 error = ENOMEM;
 356                 MPT_UNLOCK(mpt);
 357                 goto cleanup;
 358         }
 359         MPT_UNLOCK(mpt);
 360
 361         /*
 362          * Only register a second bus for RAID physical
 363          * devices if the controller supports RAID.
 364          */
 365         if (mpt->ioc_page2 == NULL || mpt->ioc_page2->MaxPhysDisks == 0) {
 366                 return (0);
 367         }
 368
 369         /*
 370          * Create a "bus" to export all hidden disks to CAM.
 371          */
 372         mpt->phydisk_sim =
 373             mpt_sim_alloc(mpt_action, mpt_poll, "mpt", mpt, 1, maxq, devq);
 374         if (mpt->phydisk_sim == NULL) {
 375                 mpt_prt(mpt, "Unable to allocate Physical Disk CAM SIM!\n");
 376                 error = ENOMEM;
 377                 goto cleanup;
 378         }
 379
 380         /*
 381          * Register this bus.
 382          */
 383         MPT_LOCK(mpt);
 384         if (mpt_xpt_bus_register(mpt->phydisk_sim, mpt->dev, 1) !=
 385             CAM_SUCCESS) {
 386                 mpt_prt(mpt, "Physical Disk Bus registration Failed!\n");
 387                 error = ENOMEM;
 388                 MPT_UNLOCK(mpt);
 389                 goto cleanup;
 390         }
 391
 392         if (xpt_create_path(&mpt->phydisk_path, NULL,
 393             cam_sim_path(mpt->phydisk_sim),
 394             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 395                 mpt_prt(mpt, "Unable to allocate Physical Disk Path!\n");
 396                 error = ENOMEM;
 397                 MPT_UNLOCK(mpt);
 398                 goto cleanup;
 399         }
 400         MPT_UNLOCK(mpt);
 401         mpt_lprt(mpt, MPT_PRT_DEBUG, "attached cam\n");
 402         return (0);
 403
 404 cleanup:
 405         mpt_cam_detach(mpt);
 406         return (error);
 407 }
 408
 409 /*
 410  * Read FC configuration information
 411  */
 412 static int
 413 mpt_read_config_info_fc(struct mpt_softc *mpt)
 414 {
 415         char *topology = NULL;
 416         int rv;
 417
 418         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_FC_PORT, 0,
 419             0, &mpt->mpt_fcport_page0.Header, FALSE, 5000);
 420         if (rv) {
 421                 return (-1);
 422         }
 423         mpt_lprt(mpt, MPT_PRT_DEBUG, "FC Port Page 0 Header: %x %x %x %x\n",
 424                  mpt->mpt_fcport_page0.Header.PageVersion,
 425                  mpt->mpt_fcport_page0.Header.PageLength,
 426                  mpt->mpt_fcport_page0.Header.PageNumber,
 427                  mpt->mpt_fcport_page0.Header.PageType);
 428
 429
 430         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_fcport_page0.Header,
 431             sizeof(mpt->mpt_fcport_page0), FALSE, 5000);
 432         if (rv) {
 433                 mpt_prt(mpt, "failed to read FC Port Page 0\n");
 434                 return (-1);
 435         }
 436         mpt2host_config_page_fc_port_0(&mpt->mpt_fcport_page0);
 437
 438         mpt->mpt_fcport_speed = mpt->mpt_fcport_page0.CurrentSpeed;
 439
 440         switch (mpt->mpt_fcport_page0.Flags &
 441             MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) {
 442         case MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT:
 443                 mpt->mpt_fcport_speed = 0;
 444                 topology = "<NO LOOP>";
 445                 break;
 446         case MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT:
 447                 topology = "N-Port";
 448                 break;
 449         case MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP:
 450                 topology = "NL-Port";
 451                 break;
 452         case MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT:
 453                 topology = "F-Port";
 454                 break;
 455         case MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP:
 456                 topology = "FL-Port";
 457                 break;
 458         default:
 459                 mpt->mpt_fcport_speed = 0;
 460                 topology = "?";
 461                 break;
 462         }
 463
 464         mpt_lprt(mpt, MPT_PRT_INFO,
 465             "FC Port Page 0: Topology <%s> WWNN 0x%08x%08x WWPN 0x%08x%08x "
 466             "Speed %u-Gbit\n", topology,
 467             mpt->mpt_fcport_page0.WWNN.High,
 468             mpt->mpt_fcport_page0.WWNN.Low,
 469             mpt->mpt_fcport_page0.WWPN.High,
 470             mpt->mpt_fcport_page0.WWPN.Low,
 471             mpt->mpt_fcport_speed);
 472         MPT_UNLOCK(mpt);
 473         {
 474                 ksnprintf(mpt->scinfo.fc.wwnn,
 475                     sizeof (mpt->scinfo.fc.wwnn), "0x%08x%08x",
 476                     mpt->mpt_fcport_page0.WWNN.High,
 477                     mpt->mpt_fcport_page0.WWNN.Low);
 478
 479                 ksnprintf(mpt->scinfo.fc.wwpn,
 480                     sizeof (mpt->scinfo.fc.wwpn), "0x%08x%08x",
 481                     mpt->mpt_fcport_page0.WWPN.High,
 482                     mpt->mpt_fcport_page0.WWPN.Low);
 483
 484                 SYSCTL_ADD_STRING(&mpt->mpt_sysctl_ctx,
 485                        SYSCTL_CHILDREN(mpt->mpt_sysctl_tree), OID_AUTO,
 486                        "wwnn", CTLFLAG_RD, mpt->scinfo.fc.wwnn, 0,
 487                        "World Wide Node Name");
 488
 489                 SYSCTL_ADD_STRING(&mpt->mpt_sysctl_ctx,
 490                        SYSCTL_CHILDREN(mpt->mpt_sysctl_tree), OID_AUTO,
 491                        "wwpn", CTLFLAG_RD, mpt->scinfo.fc.wwpn, 0,
 492                        "World Wide Port Name");
 493
 494         }
 495         MPT_LOCK(mpt);
 496         return (0);
 497 }
 498
 499 /*
 500  * Set FC configuration information.
 501  */
 502 static int
 503 mpt_set_initial_config_fc(struct mpt_softc *mpt)
 504 {
 505
 506         CONFIG_PAGE_FC_PORT_1 fc;
 507         U32 fl;
 508         int r, doit = 0;
 509         int role;
 510
 511         r = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_FC_PORT, 1, 0,
 512             &fc.Header, FALSE, 5000);
 513         if (r) {
 514                 mpt_prt(mpt, "failed to read FC page 1 header\n");
 515                 return (mpt_fc_reset_link(mpt, 1));
 516         }
 517
 518         r = mpt_read_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_NVRAM, 0,
 519             &fc.Header, sizeof (fc), FALSE, 5000);
 520         if (r) {
 521                 mpt_prt(mpt, "failed to read FC page 1\n");
 522                 return (mpt_fc_reset_link(mpt, 1));
 523         }
 524         mpt2host_config_page_fc_port_1(&fc);
 525
 526         /*
 527          * Check our flags to make sure we support the role we want.
 528          */
 529         doit = 0;
 530         role = 0;
 531         fl = fc.Flags;
 532
 533         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_INIT) {
 534                 role |= MPT_ROLE_INITIATOR;
 535         }
 536         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG) {
 537                 role |= MPT_ROLE_TARGET;
 538         }
 539
 540         fl &= ~MPI_FCPORTPAGE1_FLAGS_PROT_MASK;
 541
 542         if (mpt->do_cfg_role == 0) {
 543                 role = mpt->cfg_role;
 544         } else {
 545                 mpt->do_cfg_role = 0;
 546         }
 547
 548         if (role != mpt->cfg_role) {
 549                 if (mpt->cfg_role & MPT_ROLE_INITIATOR) {
 550                         if ((role & MPT_ROLE_INITIATOR) == 0) {
 551                                 mpt_prt(mpt, "adding initiator role\n");
 552                                 fl |= MPI_FCPORTPAGE1_FLAGS_PROT_FCP_INIT;
 553                                 doit++;
 554                         } else {
 555                                 mpt_prt(mpt, "keeping initiator role\n");
 556                         }
 557                 } else if (role & MPT_ROLE_INITIATOR) {
 558                         mpt_prt(mpt, "removing initiator role\n");
 559                         doit++;
 560                 }
 561                 if (mpt->cfg_role & MPT_ROLE_TARGET) {
 562                         if ((role & MPT_ROLE_TARGET) == 0) {
 563                                 mpt_prt(mpt, "adding target role\n");
 564                                 fl |= MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG;
 565                                 doit++;
 566                         } else {
 567                                 mpt_prt(mpt, "keeping target role\n");
 568                         }
 569                 } else if (role & MPT_ROLE_TARGET) {
 570                         mpt_prt(mpt, "removing target role\n");
 571                         doit++;
 572                 }
 573                 mpt->role = mpt->cfg_role;
 574         }
 575
 576         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG) {
 577                 if ((fl & MPI_FCPORTPAGE1_FLAGS_TARGET_MODE_OXID) == 0) {
 578                         mpt_prt(mpt, "adding OXID option\n");
 579                         fl |= MPI_FCPORTPAGE1_FLAGS_TARGET_MODE_OXID;
 580                         doit++;
 581                 }
 582         }
 583
 584         if (doit) {
 585                 fc.Flags = fl;
 586                 host2mpt_config_page_fc_port_1(&fc);
 587                 r = mpt_write_cfg_page(mpt,
 588                     MPI_CONFIG_ACTION_PAGE_WRITE_NVRAM, 0, &fc.Header,
 589                     sizeof(fc), FALSE, 5000);
 590                 if (r != 0) {
 591                         mpt_prt(mpt, "failed to update NVRAM with changes\n");
 592                         return (0);
 593                 }
 594                 mpt_prt(mpt, "NOTE: NVRAM changes will not take "
 595                     "effect until next reboot or IOC reset\n");
 596         }
 597         return (0);
 598 }
 599
 600 static int
 601 mptsas_sas_io_unit_pg0(struct mpt_softc *mpt, struct mptsas_portinfo *portinfo)
 602 {
 603         ConfigExtendedPageHeader_t hdr;
 604         struct mptsas_phyinfo *phyinfo;
 605         SasIOUnitPage0_t *buffer;
 606         int error, len, i;
 607
 608         error = mpt_read_extcfg_header(mpt, MPI_SASIOUNITPAGE0_PAGEVERSION,
 609                                        0, 0, MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT,
 610                                        &hdr, 0, 10000);
 611         if (error)
 612                 goto out;
 613         if (hdr.ExtPageLength == 0) {
 614                 error = ENXIO;
 615                 goto out;
 616         }
 617
 618         len = hdr.ExtPageLength * 4;
 619         buffer = kmalloc(len, M_DEVBUF, M_NOWAIT|M_ZERO);
 620         if (buffer == NULL) {
 621                 error = ENOMEM;
 622                 goto out;
 623         }
 624
 625         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 626                                      0, &hdr, buffer, len, 0, 10000);
 627         if (error) {
 628                 kfree(buffer, M_DEVBUF);
 629                 goto out;
 630         }
 631
 632         portinfo->num_phys = buffer->NumPhys;
 633         portinfo->phy_info = kmalloc(sizeof(*portinfo->phy_info) *
 634             portinfo->num_phys, M_DEVBUF, M_NOWAIT|M_ZERO);
 635         if (portinfo->phy_info == NULL) {
 636                 kfree(buffer, M_DEVBUF);
 637                 error = ENOMEM;
 638                 goto out;
 639         }
 640
 641         for (i = 0; i < portinfo->num_phys; i++) {
 642                 phyinfo = &portinfo->phy_info[i];
 643                 phyinfo->phy_num = i;
 644                 phyinfo->port_id = buffer->PhyData[i].Port;
 645                 phyinfo->negotiated_link_rate =
 646                     buffer->PhyData[i].NegotiatedLinkRate;
 647                 phyinfo->handle =
 648                     le16toh(buffer->PhyData[i].ControllerDevHandle);
 649         }
 650
 651         kfree(buffer, M_DEVBUF);
 652 out:
 653         return (error);
 654 }
 655
 656 static int
 657 mptsas_sas_phy_pg0(struct mpt_softc *mpt, struct mptsas_phyinfo *phy_info,
 658         uint32_t form, uint32_t form_specific)
 659 {
 660         ConfigExtendedPageHeader_t hdr;
 661         SasPhyPage0_t *buffer;
 662         int error;
 663
 664         error = mpt_read_extcfg_header(mpt, MPI_SASPHY0_PAGEVERSION, 0, 0,
 665                                        MPI_CONFIG_EXTPAGETYPE_SAS_PHY, &hdr,
 666                                        0, 10000);
 667         if (error)
 668                 goto out;
 669         if (hdr.ExtPageLength == 0) {
 670                 error = ENXIO;
 671                 goto out;
 672         }
 673
 674         buffer = kmalloc(sizeof(SasPhyPage0_t), M_DEVBUF, M_NOWAIT|M_ZERO);
 675         if (buffer == NULL) {
 676                 error = ENOMEM;
 677                 goto out;
 678         }
 679
 680         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 681                                      form + form_specific, &hdr, buffer,
 682                                      sizeof(SasPhyPage0_t), 0, 10000);
 683         if (error) {
 684                 kfree(buffer, M_DEVBUF);
 685                 goto out;
 686         }
 687
 688         phy_info->hw_link_rate = buffer->HwLinkRate;
 689         phy_info->programmed_link_rate = buffer->ProgrammedLinkRate;
 690         phy_info->identify.dev_handle = le16toh(buffer->OwnerDevHandle);
 691         phy_info->attached.dev_handle = le16toh(buffer->AttachedDevHandle);
 692
 693         kfree(buffer, M_DEVBUF);
 694 out:
 695         return (error);
 696 }
 697
 698 static int
 699 mptsas_sas_device_pg0(struct mpt_softc *mpt, struct mptsas_devinfo *device_info,
 700         uint32_t form, uint32_t form_specific)
 701 {
 702         ConfigExtendedPageHeader_t hdr;
 703         SasDevicePage0_t *buffer;
 704         uint64_t sas_address;
 705         int error = 0;
 706
 707         bzero(device_info, sizeof(*device_info));
 708         error = mpt_read_extcfg_header(mpt, MPI_SASDEVICE0_PAGEVERSION, 0, 0,
 709                                        MPI_CONFIG_EXTPAGETYPE_SAS_DEVICE,
 710                                        &hdr, 0, 10000);
 711         if (error)
 712                 goto out;
 713         if (hdr.ExtPageLength == 0) {
 714                 error = ENXIO;
 715                 goto out;
 716         }
 717
 718         buffer = kmalloc(sizeof(SasDevicePage0_t), M_DEVBUF, M_NOWAIT|M_ZERO);
 719         if (buffer == NULL) {
 720                 error = ENOMEM;
 721                 goto out;
 722         }
 723
 724         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 725                                      form + form_specific, &hdr, buffer,
 726                                      sizeof(SasDevicePage0_t), 0, 10000);
 727         if (error) {
 728                 kfree(buffer, M_DEVBUF);
 729                 goto out;
 730         }
 731
 732         device_info->dev_handle = le16toh(buffer->DevHandle);
 733         device_info->parent_dev_handle = le16toh(buffer->ParentDevHandle);
 734         device_info->enclosure_handle = le16toh(buffer->EnclosureHandle);
 735         device_info->slot = le16toh(buffer->Slot);
 736         device_info->phy_num = buffer->PhyNum;
 737         device_info->physical_port = buffer->PhysicalPort;
 738         device_info->target_id = buffer->TargetID;
 739         device_info->bus = buffer->Bus;
 740         bcopy(&buffer->SASAddress, &sas_address, sizeof(uint64_t));
 741         device_info->sas_address = le64toh(sas_address);
 742         device_info->device_info = le32toh(buffer->DeviceInfo);
 743
 744         kfree(buffer, M_DEVBUF);
 745 out:
 746         return (error);
 747 }
 748
 749 /*
 750  * Read SAS configuration information. Nothing to do yet.
 751  */
 752 static int
 753 mpt_read_config_info_sas(struct mpt_softc *mpt)
 754 {
 755         struct mptsas_portinfo *portinfo;
 756         struct mptsas_phyinfo *phyinfo;
 757         int error, i;
 758
 759         portinfo = kmalloc(sizeof(*portinfo), M_DEVBUF, M_NOWAIT|M_ZERO);
 760         if (portinfo == NULL)
 761                 return (ENOMEM);
 762
 763         error = mptsas_sas_io_unit_pg0(mpt, portinfo);
 764         if (error) {
 765                 kfree(portinfo, M_DEVBUF);
 766                 return (0);
 767         }
 768
 769         for (i = 0; i < portinfo->num_phys; i++) {
 770                 phyinfo = &portinfo->phy_info[i];
 771                 error = mptsas_sas_phy_pg0(mpt, phyinfo,
 772                     (MPI_SAS_PHY_PGAD_FORM_PHY_NUMBER <<
 773                     MPI_SAS_PHY_PGAD_FORM_SHIFT), i);
 774                 if (error)
 775                         break;
 776                 error = mptsas_sas_device_pg0(mpt, &phyinfo->identify,
 777                     (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
 778                     MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
 779                     phyinfo->handle);
 780                 if (error)
 781                         break;
 782                 phyinfo->identify.phy_num = phyinfo->phy_num = i;
 783                 if (phyinfo->attached.dev_handle)
 784                         error = mptsas_sas_device_pg0(mpt,
 785                             &phyinfo->attached,
 786                             (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
 787                             MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
 788                             phyinfo->attached.dev_handle);
 789                 if (error)
 790                         break;
 791         }
 792         mpt->sas_portinfo = portinfo;
 793         return (0);
 794 }
 795
 796 static void
 797 mptsas_set_sata_wc(struct mpt_softc *mpt, struct mptsas_devinfo *devinfo,
 798         int enabled)
 799 {
 800         SataPassthroughRequest_t        *pass;
 801         request_t *req;
 802         int error, status;
 803
 804         req = mpt_get_request(mpt, 0);
 805         if (req == NULL)
 806                 return;
 807
 808         pass = req->req_vbuf;
 809         bzero(pass, sizeof(SataPassthroughRequest_t));
 810         pass->Function = MPI_FUNCTION_SATA_PASSTHROUGH;
 811         pass->TargetID = devinfo->target_id;
 812         pass->Bus = devinfo->bus;
 813         pass->PassthroughFlags = 0;
 814         pass->ConnectionRate = MPI_SATA_PT_REQ_CONNECT_RATE_NEGOTIATED;
 815         pass->DataLength = 0;
 816         pass->MsgContext = htole32(req->index | sata_pass_handler_id);
 817         pass->CommandFIS[0] = 0x27;
 818         pass->CommandFIS[1] = 0x80;
 819         pass->CommandFIS[2] = 0xef;
 820         pass->CommandFIS[3] = (enabled) ? 0x02 : 0x82;
 821         pass->CommandFIS[7] = 0x40;
 822         pass->CommandFIS[15] = 0x08;
 823
 824         mpt_check_doorbell(mpt);
 825         mpt_send_cmd(mpt, req);
 826         error = mpt_wait_req(mpt, req, REQ_STATE_DONE, REQ_STATE_DONE, 0,
 827                              10 * 1000);
 828         if (error) {
 829                 mpt_free_request(mpt, req);
 830                 kprintf("error %d sending passthrough\n", error);
 831                 return;
 832         }
 833
 834         status = le16toh(req->IOCStatus);
 835         if (status != MPI_IOCSTATUS_SUCCESS) {
 836                 mpt_free_request(mpt, req);
 837                 kprintf("IOCSTATUS %d\n", status);
 838                 return;
 839         }
 840
 841         mpt_free_request(mpt, req);
 842 }
 843
 844 /*
 845  * Set SAS configuration information. Nothing to do yet.
 846  */
 847 static int
 848 mpt_set_initial_config_sas(struct mpt_softc *mpt)
 849 {
 850         struct mptsas_phyinfo *phyinfo;
 851         int i;
 852
 853         if ((mpt_enable_sata_wc != -1) && (mpt->sas_portinfo != NULL)) {
 854                 for (i = 0; i < mpt->sas_portinfo->num_phys; i++) {
 855                         phyinfo = &mpt->sas_portinfo->phy_info[i];
 856                         if (phyinfo->attached.dev_handle == 0)
 857                                 continue;
 858                         if ((phyinfo->attached.device_info &
 859                             MPI_SAS_DEVICE_INFO_SATA_DEVICE) == 0)
 860                                 continue;
 861                         if (bootverbose)
 862                                 device_printf(mpt->dev,
 863                                     "%sabling SATA WC on phy %d\n",
 864                                     (mpt_enable_sata_wc) ? "En" : "Dis", i);
 865                         mptsas_set_sata_wc(mpt, &phyinfo->attached,
 866                                            mpt_enable_sata_wc);
 867                 }
 868         }
 869
 870         return (0);
 871 }
 872
 873 static int
 874 mpt_sata_pass_reply_handler(struct mpt_softc *mpt, request_t *req,
 875  uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
 876 {
 877         if (req != NULL) {
 878
 879                 if (reply_frame != NULL) {
 880                         req->IOCStatus = le16toh(reply_frame->IOCStatus);
 881                 }
 882                 req->state &= ~REQ_STATE_QUEUED;
 883                 req->state |= REQ_STATE_DONE;
 884                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
 885                 if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
 886                         wakeup(req);
 887                 } else if ((req->state & REQ_STATE_TIMEDOUT) != 0) {
 888                         /*
 889                          * Whew- we can free this request (late completion)
 890                          */
 891                         mpt_free_request(mpt, req);
 892                 }
 893         }
 894
 895         return (TRUE);
 896 }
 897
 898 /*
 899  * Read SCSI configuration information
 900  */
 901 static int
 902 mpt_read_config_info_spi(struct mpt_softc *mpt)
 903 {
 904         int rv, i;
 905
 906         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 0, 0,
 907             &mpt->mpt_port_page0.Header, FALSE, 5000);
 908         if (rv) {
 909                 return (-1);
 910         }
 911         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 0 Header: %x %x %x %x\n",
 912             mpt->mpt_port_page0.Header.PageVersion,
 913             mpt->mpt_port_page0.Header.PageLength,
 914             mpt->mpt_port_page0.Header.PageNumber,
 915             mpt->mpt_port_page0.Header.PageType);
 916
 917         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 1, 0,
 918             &mpt->mpt_port_page1.Header, FALSE, 5000);
 919         if (rv) {
 920                 return (-1);
 921         }
 922         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 1 Header: %x %x %x %x\n",
 923             mpt->mpt_port_page1.Header.PageVersion,
 924             mpt->mpt_port_page1.Header.PageLength,
 925             mpt->mpt_port_page1.Header.PageNumber,
 926             mpt->mpt_port_page1.Header.PageType);
 927
 928         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 2, 0,
 929             &mpt->mpt_port_page2.Header, FALSE, 5000);
 930         if (rv) {
 931                 return (-1);
 932         }
 933         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 2 Header: %x %x %x %x\n",
 934             mpt->mpt_port_page2.Header.PageVersion,
 935             mpt->mpt_port_page2.Header.PageLength,
 936             mpt->mpt_port_page2.Header.PageNumber,
 937             mpt->mpt_port_page2.Header.PageType);
 938
 939         for (i = 0; i < 16; i++) {
 940                 rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
 941                     0, i, &mpt->mpt_dev_page0[i].Header, FALSE, 5000);
 942                 if (rv) {
 943                         return (-1);
 944                 }
 945                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 946                     "SPI Target %d Device Page 0 Header: %x %x %x %x\n", i,
 947                     mpt->mpt_dev_page0[i].Header.PageVersion,
 948                     mpt->mpt_dev_page0[i].Header.PageLength,
 949                     mpt->mpt_dev_page0[i].Header.PageNumber,
 950                     mpt->mpt_dev_page0[i].Header.PageType);
 951
 952                 rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
 953                     1, i, &mpt->mpt_dev_page1[i].Header, FALSE, 5000);
 954                 if (rv) {
 955                         return (-1);
 956                 }
 957                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 958                     "SPI Target %d Device Page 1 Header: %x %x %x %x\n", i,
 959                     mpt->mpt_dev_page1[i].Header.PageVersion,
 960                     mpt->mpt_dev_page1[i].Header.PageLength,
 961                     mpt->mpt_dev_page1[i].Header.PageNumber,
 962                     mpt->mpt_dev_page1[i].Header.PageType);
 963         }
 964
 965         /*
 966          * At this point, we don't *have* to fail. As long as we have
 967          * valid config header information, we can (barely) lurch
 968          * along.
 969          */
 970
 971         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page0.Header,
 972             sizeof(mpt->mpt_port_page0), FALSE, 5000);
 973         if (rv) {
 974                 mpt_prt(mpt, "failed to read SPI Port Page 0\n");
 975         } else {
 976                 mpt2host_config_page_scsi_port_0(&mpt->mpt_port_page0);
 977                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
 978                     "SPI Port Page 0: Capabilities %x PhysicalInterface %x\n",
 979                     mpt->mpt_port_page0.Capabilities,
 980                     mpt->mpt_port_page0.PhysicalInterface);
 981         }
 982
 983         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page1.Header,
 984             sizeof(mpt->mpt_port_page1), FALSE, 5000);
 985         if (rv) {
 986                 mpt_prt(mpt, "failed to read SPI Port Page 1\n");
 987         } else {
 988                 mpt2host_config_page_scsi_port_1(&mpt->mpt_port_page1);
 989                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 990                     "SPI Port Page 1: Configuration %x OnBusTimerValue %x\n",
 991                     mpt->mpt_port_page1.Configuration,
 992                     mpt->mpt_port_page1.OnBusTimerValue);
 993         }
 994
 995         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page2.Header,
 996             sizeof(mpt->mpt_port_page2), FALSE, 5000);
 997         if (rv) {
 998                 mpt_prt(mpt, "failed to read SPI Port Page 2\n");
 999         } else {
1000                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1001                     "Port Page 2: Flags %x Settings %x\n",
1002                     mpt->mpt_port_page2.PortFlags,
1003                     mpt->mpt_port_page2.PortSettings);
1004                 mpt2host_config_page_scsi_port_2(&mpt->mpt_port_page2);
1005                 for (i = 0; i < 16; i++) {
1006                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1007                             " Port Page 2 Tgt %d: timo %x SF %x Flags %x\n",
1008                             i, mpt->mpt_port_page2.DeviceSettings[i].Timeout,
1009                             mpt->mpt_port_page2.DeviceSettings[i].SyncFactor,
1010                             mpt->mpt_port_page2.DeviceSettings[i].DeviceFlags);
1011                 }
1012         }
1013
1014         for (i = 0; i < 16; i++) {
1015                 rv = mpt_read_cur_cfg_page(mpt, i,
1016                     &mpt->mpt_dev_page0[i].Header, sizeof(*mpt->mpt_dev_page0),
1017                     FALSE, 5000);
1018                 if (rv) {
1019                         mpt_prt(mpt,
1020                             "cannot read SPI Target %d Device Page 0\n", i);
1021                         continue;
1022                 }
1023                 mpt2host_config_page_scsi_device_0(&mpt->mpt_dev_page0[i]);
1024                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1025                     "target %d page 0: Negotiated Params %x Information %x\n",
1026                     i, mpt->mpt_dev_page0[i].NegotiatedParameters,
1027                     mpt->mpt_dev_page0[i].Information);
1028
1029                 rv = mpt_read_cur_cfg_page(mpt, i,
1030                     &mpt->mpt_dev_page1[i].Header, sizeof(*mpt->mpt_dev_page1),
1031                     FALSE, 5000);
1032                 if (rv) {
1033                         mpt_prt(mpt,
1034                             "cannot read SPI Target %d Device Page 1\n", i);
1035                         continue;
1036                 }
1037                 mpt2host_config_page_scsi_device_1(&mpt->mpt_dev_page1[i]);
1038                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1039                     "target %d page 1: Requested Params %x Configuration %x\n",
1040                     i, mpt->mpt_dev_page1[i].RequestedParameters,
1041                     mpt->mpt_dev_page1[i].Configuration);
1042         }
1043         return (0);
1044 }
1045
1046 /*
1047  * Validate SPI configuration information.
1048  *
1049  * In particular, validate SPI Port Page 1.
1050  */
1051 static int
1052 mpt_set_initial_config_spi(struct mpt_softc *mpt)
1053 {
1054         int error, i, pp1val;
1055
1056         mpt->mpt_disc_enable = 0xff;
1057         mpt->mpt_tag_enable = 0;
1058
1059         pp1val = ((1 << mpt->mpt_ini_id) <<
1060             MPI_SCSIPORTPAGE1_CFG_SHIFT_PORT_RESPONSE_ID) | mpt->mpt_ini_id;
1061         if (mpt->mpt_port_page1.Configuration != pp1val) {
1062                 CONFIG_PAGE_SCSI_PORT_1 tmp;
1063
1064                 mpt_prt(mpt, "SPI Port Page 1 Config value bad (%x)- should "
1065                     "be %x\n", mpt->mpt_port_page1.Configuration, pp1val);
1066                 tmp = mpt->mpt_port_page1;
1067                 tmp.Configuration = pp1val;
1068                 host2mpt_config_page_scsi_port_1(&tmp);
1069                 error = mpt_write_cur_cfg_page(mpt, 0,
1070                     &tmp.Header, sizeof(tmp), FALSE, 5000);
1071                 if (error) {
1072                         return (-1);
1073                 }
1074                 error = mpt_read_cur_cfg_page(mpt, 0,
1075                     &tmp.Header, sizeof(tmp), FALSE, 5000);
1076                 if (error) {
1077                         return (-1);
1078                 }
1079                 mpt2host_config_page_scsi_port_1(&tmp);
1080                 if (tmp.Configuration != pp1val) {
1081                         mpt_prt(mpt,
1082                             "failed to reset SPI Port Page 1 Config value\n");
1083                         return (-1);
1084                 }
1085                 mpt->mpt_port_page1 = tmp;
1086         }
1087
1088         /*
1089          * The purpose of this exercise is to get
1090          * all targets back to async/narrow.
1091          *
1092          * We skip this step if the BIOS has already negotiated
1093          * speeds with the targets.
1094          */
1095         i = mpt->mpt_port_page2.PortSettings &
1096             MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
1097         if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS) {
1098                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1099                     "honoring BIOS transfer negotiations\n");
1100         } else {
1101                 for (i = 0; i < 16; i++) {
1102                         mpt->mpt_dev_page1[i].RequestedParameters = 0;
1103                         mpt->mpt_dev_page1[i].Configuration = 0;
1104                         (void) mpt_update_spi_config(mpt, i);
1105                 }
1106         }
1107         return (0);
1108 }
1109
1110 int
1111 mpt_cam_enable(struct mpt_softc *mpt)
1112 {
1113         int error;
1114
1115         MPT_LOCK(mpt);
1116
1117         error = EIO;
1118         if (mpt->is_fc) {
1119                 if (mpt_read_config_info_fc(mpt)) {
1120                         goto out;
1121                 }
1122                 if (mpt_set_initial_config_fc(mpt)) {
1123                         goto out;
1124                 }
1125         } else if (mpt->is_sas) {
1126                 if (mpt_read_config_info_sas(mpt)) {
1127                         goto out;
1128                 }
1129                 if (mpt_set_initial_config_sas(mpt)) {
1130                         goto out;
1131                 }
1132         } else if (mpt->is_spi) {
1133                 if (mpt_read_config_info_spi(mpt)) {
1134                         goto out;
1135                 }
1136                 if (mpt_set_initial_config_spi(mpt)) {
1137                         goto out;
1138                 }
1139         }
1140         error = 0;
1141
1142 out:
1143         MPT_UNLOCK(mpt);
1144         return (error);
1145 }
1146
1147 void
1148 mpt_cam_ready(struct mpt_softc *mpt)
1149 {
1150         /*
1151          * If we're in target mode, hang out resources now
1152          * so we don't cause the world to hang talking to us.
1153          */
1154         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
1155                 /*
1156                  * Try to add some target command resources
1157                  */
1158                 MPT_LOCK(mpt);
1159                 if (mpt_add_target_commands(mpt) == FALSE) {
1160                         mpt_prt(mpt, "failed to add target commands\n");
1161                 }
1162                 MPT_UNLOCK(mpt);
1163         }
1164         mpt->ready = 1;
1165 }
1166
1167 void
1168 mpt_cam_detach(struct mpt_softc *mpt)
1169 {
1170         mpt_handler_t handler;
1171
1172         MPT_LOCK(mpt);
1173         mpt->ready = 0;
1174         mpt_terminate_recovery_thread(mpt);
1175
1176         handler.reply_handler = mpt_scsi_reply_handler;
1177         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1178                                scsi_io_handler_id);
1179         handler.reply_handler = mpt_scsi_tmf_reply_handler;
1180         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1181                                scsi_tmf_handler_id);
1182         handler.reply_handler = mpt_fc_els_reply_handler;
1183         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1184                                fc_els_handler_id);
1185         handler.reply_handler = mpt_scsi_tgt_reply_handler;
1186         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1187                                mpt->scsi_tgt_handler_id);
1188         handler.reply_handler = mpt_sata_pass_reply_handler;
1189         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1190                                sata_pass_handler_id);
1191
1192         if (mpt->tmf_req != NULL) {
1193                 mpt->tmf_req->state = REQ_STATE_ALLOCATED;
1194                 mpt_free_request(mpt, mpt->tmf_req);
1195                 mpt->tmf_req = NULL;
1196         }
1197         if (mpt->sas_portinfo != NULL) {
1198                 kfree(mpt->sas_portinfo, M_DEVBUF);
1199                 mpt->sas_portinfo = NULL;
1200         }
1201
1202         if (mpt->sim != NULL) {
1203                 xpt_free_path(mpt->path);
1204                 xpt_bus_deregister(cam_sim_path(mpt->sim));
1205                 cam_sim_free(mpt->sim);
1206                 mpt->sim = NULL;
1207         }
1208
1209         if (mpt->phydisk_sim != NULL) {
1210                 xpt_free_path(mpt->phydisk_path);
1211                 xpt_bus_deregister(cam_sim_path(mpt->phydisk_sim));
1212                 cam_sim_free(mpt->phydisk_sim);
1213                 mpt->phydisk_sim = NULL;
1214         }
1215         MPT_UNLOCK(mpt);
1216 }
1217
1218 /* This routine is used after a system crash to dump core onto the swap device.
1219  */
1220 static void
1221 mpt_poll(struct cam_sim *sim)
1222 {
1223         struct mpt_softc *mpt;
1224
1225         mpt = (struct mpt_softc *)cam_sim_softc(sim);
1226         mpt_intr(mpt);
1227 }
1228
1229 /*
1230  * Watchdog timeout routine for SCSI requests.
1231  */
1232 static void
1233 mpt_timeout(void *arg)
1234 {
1235         union ccb        *ccb;
1236         struct mpt_softc *mpt;
1237         request_t        *req;
1238
1239         ccb = (union ccb *)arg;
1240         mpt = ccb->ccb_h.ccb_mpt_ptr;
1241
1242         MPT_LOCK(mpt);
1243         req = ccb->ccb_h.ccb_req_ptr;
1244         mpt_prt(mpt, "request %p:%u timed out for ccb %p (req->ccb %p)\n", req,
1245             req->serno, ccb, req->ccb);
1246 /* XXX: WHAT ARE WE TRYING TO DO HERE? */
1247         if ((req->state & REQ_STATE_QUEUED) == REQ_STATE_QUEUED) {
1248                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
1249                 TAILQ_INSERT_TAIL(&mpt->request_timeout_list, req, links);
1250                 req->state |= REQ_STATE_TIMEDOUT;
1251                 mpt_wakeup_recovery_thread(mpt);
1252         }
1253         MPT_UNLOCK(mpt);
1254 }
1255
1256 /*
1257  * Callback routine from "bus_dmamap_load" or, in simple cases, called directly.
1258  *
1259  * Takes a list of physical segments and builds the SGL for SCSI IO command
1260  * and forwards the commard to the IOC after one last check that CAM has not
1261  * aborted the transaction.
1262  */
1263 static void
1264 mpt_execute_req_a64(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1265 {
1266         request_t *req, *trq;
1267         char *mpt_off;
1268         union ccb *ccb;
1269         struct mpt_softc *mpt;
1270         int seg, first_lim;
1271         uint32_t flags, nxt_off;
1272         void *sglp = NULL;
1273         MSG_REQUEST_HEADER *hdrp;
1274         SGE_SIMPLE64 *se;
1275         SGE_CHAIN64 *ce;
1276         int istgt = 0;
1277
1278         req = (request_t *)arg;
1279         ccb = req->ccb;
1280
1281         mpt = ccb->ccb_h.ccb_mpt_ptr;
1282         req = ccb->ccb_h.ccb_req_ptr;
1283
1284         hdrp = req->req_vbuf;
1285         mpt_off = req->req_vbuf;
1286
1287         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1288                 error = EFBIG;
1289         }
1290
1291         if (error == 0) {
1292                 switch (hdrp->Function) {
1293                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1294                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1295                         istgt = 0;
1296                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1297                         break;
1298                 case MPI_FUNCTION_TARGET_ASSIST:
1299                         istgt = 1;
1300                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1301                         break;
1302                 default:
1303                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req_a64\n",
1304                             hdrp->Function);
1305                         error = EINVAL;
1306                         break;
1307                 }
1308         }
1309
1310         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1311                 error = EFBIG;
1312                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1313                     nseg, mpt->max_seg_cnt);
1314         }
1315
1316 bad:
1317         if (error != 0) {
1318                 if (error != EFBIG && error != ENOMEM) {
1319                         mpt_prt(mpt, "mpt_execute_req_a64: err %d\n", error);
1320                 }
1321                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1322                         cam_status status;
1323                         mpt_freeze_ccb(ccb);
1324                         if (error == EFBIG) {
1325                                 status = CAM_REQ_TOO_BIG;
1326                         } else if (error == ENOMEM) {
1327                                 if (mpt->outofbeer == 0) {
1328                                         mpt->outofbeer = 1;
1329                                         xpt_freeze_simq(mpt->sim, 1);
1330                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1331                                             "FREEZEQ\n");
1332                                 }
1333                                 status = CAM_REQUEUE_REQ;
1334                         } else {
1335                                 status = CAM_REQ_CMP_ERR;
1336                         }
1337                         mpt_set_ccb_status(ccb, status);
1338                 }
1339                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1340                         request_t *cmd_req =
1341                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1342                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1343                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1344                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1345                 }
1346                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1347                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1348                 xpt_done(ccb);
1349                 CAMLOCK_2_MPTLOCK(mpt);
1350                 mpt_free_request(mpt, req);
1351                 MPTLOCK_2_CAMLOCK(mpt);
1352                 return;
1353         }
1354
1355         /*
1356          * No data to transfer?
1357          * Just make a single simple SGL with zero length.
1358          */
1359
1360         if (mpt->verbose >= MPT_PRT_DEBUG) {
1361                 int tidx = ((char *)sglp) - mpt_off;
1362                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1363         }
1364
1365         if (nseg == 0) {
1366                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1367                 MPI_pSGE_SET_FLAGS(se1,
1368                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1369                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1370                 se1->FlagsLength = htole32(se1->FlagsLength);
1371                 goto out;
1372         }
1373
1374
1375         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1376         if (istgt == 0) {
1377                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1378                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1379                 }
1380         } else {
1381                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1382                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1383                 }
1384         }
1385
1386         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1387                 bus_dmasync_op_t op;
1388                 if (istgt == 0) {
1389                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1390                                 op = BUS_DMASYNC_PREREAD;
1391                         } else {
1392                                 op = BUS_DMASYNC_PREWRITE;
1393                         }
1394                 } else {
1395                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1396                                 op = BUS_DMASYNC_PREWRITE;
1397                         } else {
1398                                 op = BUS_DMASYNC_PREREAD;
1399                         }
1400                 }
1401                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1402         }
1403
1404         /*
1405          * Okay, fill in what we can at the end of the command frame.
1406          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1407          * the command frame.
1408          *
1409          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1410          * SIMPLE64 pointers and start doing CHAIN64 entries after
1411          * that.
1412          */
1413
1414         if (nseg < MPT_NSGL_FIRST(mpt)) {
1415                 first_lim = nseg;
1416         } else {
1417                 /*
1418                  * Leave room for CHAIN element
1419                  */
1420                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1421         }
1422
1423         se = (SGE_SIMPLE64 *) sglp;
1424         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1425                 uint32_t tf;
1426
1427                 memset(se, 0, sizeof (*se));
1428                 se->Address.Low = htole32(dm_segs->ds_addr & 0xffffffff);
1429                 if (sizeof(bus_addr_t) > 4) {
1430                         se->Address.High =
1431                             htole32(((uint64_t)dm_segs->ds_addr) >> 32);
1432                 }
1433                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1434                 tf = flags;
1435                 if (seg == first_lim - 1) {
1436                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1437                 }
1438                 if (seg == nseg - 1) {
1439                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1440                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1441                 }
1442                 MPI_pSGE_SET_FLAGS(se, tf);
1443                 se->FlagsLength = htole32(se->FlagsLength);
1444         }
1445
1446         if (seg == nseg) {
1447                 goto out;
1448         }
1449
1450         /*
1451          * Tell the IOC where to find the first chain element.
1452          */
1453         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1454         nxt_off = MPT_RQSL(mpt);
1455         trq = req;
1456
1457         /*
1458          * Make up the rest of the data segments out of a chain element
1459          * (contiained in the current request frame) which points to
1460          * SIMPLE64 elements in the next request frame, possibly ending
1461          * with *another* chain element (if there's more).
1462          */
1463         while (seg < nseg) {
1464                 int this_seg_lim;
1465                 uint32_t tf, cur_off;
1466                 bus_addr_t chain_list_addr;
1467
1468                 /*
1469                  * Point to the chain descriptor. Note that the chain
1470                  * descriptor is at the end of the *previous* list (whether
1471                  * chain or simple).
1472                  */
1473                 ce = (SGE_CHAIN64 *) se;
1474
1475                 /*
1476                  * Before we change our current pointer, make  sure we won't
1477                  * overflow the request area with this frame. Note that we
1478                  * test against 'greater than' here as it's okay in this case
1479                  * to have next offset be just outside the request area.
1480                  */
1481                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1482                         nxt_off = MPT_REQUEST_AREA;
1483                         goto next_chain;
1484                 }
1485
1486                 /*
1487                  * Set our SGE element pointer to the beginning of the chain
1488                  * list and update our next chain list offset.
1489                  */
1490                 se = (SGE_SIMPLE64 *) &mpt_off[nxt_off];
1491                 cur_off = nxt_off;
1492                 nxt_off += MPT_RQSL(mpt);
1493
1494                 /*
1495                  * Now initialized the chain descriptor.
1496                  */
1497                 memset(ce, 0, sizeof (*ce));
1498
1499                 /*
1500                  * Get the physical address of the chain list.
1501                  */
1502                 chain_list_addr = trq->req_pbuf;
1503                 chain_list_addr += cur_off;
1504                 if (sizeof (bus_addr_t) > 4) {
1505                         ce->Address.High =
1506                             htole32(((uint64_t)chain_list_addr) >> 32);
1507                 }
1508                 ce->Address.Low = htole32(chain_list_addr & 0xffffffff);
1509                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT |
1510                             MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1511
1512                 /*
1513                  * If we have more than a frame's worth of segments left,
1514                  * set up the chain list to have the last element be another
1515                  * chain descriptor.
1516                  */
1517                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1518                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1519                         /*
1520                          * The length of the chain is the length in bytes of the
1521                          * number of segments plus the next chain element.
1522                          *
1523                          * The next chain descriptor offset is the length,
1524                          * in words, of the number of segments.
1525                          */
1526                         ce->Length = (this_seg_lim - seg) *
1527                             sizeof (SGE_SIMPLE64);
1528                         ce->NextChainOffset = ce->Length >> 2;
1529                         ce->Length += sizeof (SGE_CHAIN64);
1530                 } else {
1531                         this_seg_lim = nseg;
1532                         ce->Length = (this_seg_lim - seg) *
1533                             sizeof (SGE_SIMPLE64);
1534                 }
1535                 ce->Length = htole16(ce->Length);
1536
1537                 /*
1538                  * Fill in the chain list SGE elements with our segment data.
1539                  *
1540                  * If we're the last element in this chain list, set the last
1541                  * element flag. If we're the completely last element period,
1542                  * set the end of list and end of buffer flags.
1543                  */
1544                 while (seg < this_seg_lim) {
1545                         memset(se, 0, sizeof (*se));
1546                         se->Address.Low = htole32(dm_segs->ds_addr &
1547                             0xffffffff);
1548                         if (sizeof (bus_addr_t) > 4) {
1549                                 se->Address.High =
1550                                     htole32(((uint64_t)dm_segs->ds_addr) >> 32);
1551                         }
1552                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1553                         tf = flags;
1554                         if (seg ==  this_seg_lim - 1) {
1555                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1556                         }
1557                         if (seg == nseg - 1) {
1558                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1559                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1560                         }
1561                         MPI_pSGE_SET_FLAGS(se, tf);
1562                         se->FlagsLength = htole32(se->FlagsLength);
1563                         se++;
1564                         seg++;
1565                         dm_segs++;
1566                 }
1567
1568     next_chain:
1569                 /*
1570                  * If we have more segments to do and we've used up all of
1571                  * the space in a request area, go allocate another one
1572                  * and chain to that.
1573                  */
1574                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1575                         request_t *nrq;
1576
1577                         CAMLOCK_2_MPTLOCK(mpt);
1578                         nrq = mpt_get_request(mpt, FALSE);
1579                         MPTLOCK_2_CAMLOCK(mpt);
1580
1581                         if (nrq == NULL) {
1582                                 error = ENOMEM;
1583                                 goto bad;
1584                         }
1585
1586                         /*
1587                          * Append the new request area on the tail of our list.
1588                          */
1589                         if ((trq = req->chain) == NULL) {
1590                                 req->chain = nrq;
1591                         } else {
1592                                 while (trq->chain != NULL) {
1593                                         trq = trq->chain;
1594                                 }
1595                                 trq->chain = nrq;
1596                         }
1597                         trq = nrq;
1598                         mpt_off = trq->req_vbuf;
1599                         if (mpt->verbose >= MPT_PRT_DEBUG) {
1600                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
1601                         }
1602                         nxt_off = 0;
1603                 }
1604         }
1605 out:
1606
1607         /*
1608          * Last time we need to check if this CCB needs to be aborted.
1609          */
1610         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1611                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1612                         request_t *cmd_req =
1613                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1614                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1615                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1616                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1617                 }
1618                 mpt_prt(mpt,
1619                     "mpt_execute_req_a64: I/O cancelled (status 0x%x)\n",
1620                     ccb->ccb_h.status & CAM_STATUS_MASK);
1621                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
1622                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
1623                 }
1624                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1625                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1626                 xpt_done(ccb);
1627                 CAMLOCK_2_MPTLOCK(mpt);
1628                 mpt_free_request(mpt, req);
1629                 MPTLOCK_2_CAMLOCK(mpt);
1630                 return;
1631         }
1632
1633         ccb->ccb_h.status |= CAM_SIM_QUEUED;
1634         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
1635                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
1636                     mpt_timeout, ccb);
1637         }
1638         if (mpt->verbose > MPT_PRT_DEBUG) {
1639                 int nc = 0;
1640                 mpt_print_request(req->req_vbuf);
1641                 for (trq = req->chain; trq; trq = trq->chain) {
1642                         kprintf("  Additional Chain Area %d\n", nc++);
1643                         mpt_dump_sgl(trq->req_vbuf, 0);
1644                 }
1645         }
1646
1647         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1648                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1649                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
1650 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
1651                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
1652                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
1653                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
1654                 } else {
1655                         tgt->state = TGT_STATE_MOVING_DATA;
1656                 }
1657 #else
1658                 tgt->state = TGT_STATE_MOVING_DATA;
1659 #endif
1660         }
1661         CAMLOCK_2_MPTLOCK(mpt);
1662         mpt_send_cmd(mpt, req);
1663         MPTLOCK_2_CAMLOCK(mpt);
1664 }
1665
1666 static void
1667 mpt_execute_req(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1668 {
1669         request_t *req, *trq;
1670         char *mpt_off;
1671         union ccb *ccb;
1672         struct mpt_softc *mpt;
1673         int seg, first_lim;
1674         uint32_t flags, nxt_off;
1675         void *sglp = NULL;
1676         MSG_REQUEST_HEADER *hdrp;
1677         SGE_SIMPLE32 *se;
1678         SGE_CHAIN32 *ce;
1679         int istgt = 0;
1680
1681         req = (request_t *)arg;
1682         ccb = req->ccb;
1683
1684         mpt = ccb->ccb_h.ccb_mpt_ptr;
1685         req = ccb->ccb_h.ccb_req_ptr;
1686
1687         hdrp = req->req_vbuf;
1688         mpt_off = req->req_vbuf;
1689
1690
1691         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1692                 error = EFBIG;
1693         }
1694
1695         if (error == 0) {
1696                 switch (hdrp->Function) {
1697                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1698                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1699                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1700                         break;
1701                 case MPI_FUNCTION_TARGET_ASSIST:
1702                         istgt = 1;
1703                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1704                         break;
1705                 default:
1706                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req\n",
1707                             hdrp->Function);
1708                         error = EINVAL;
1709                         break;
1710                 }
1711         }
1712
1713         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1714                 error = EFBIG;
1715                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1716                     nseg, mpt->max_seg_cnt);
1717         }
1718
1719 bad:
1720         if (error != 0) {
1721                 if (error != EFBIG && error != ENOMEM) {
1722                         mpt_prt(mpt, "mpt_execute_req: err %d\n", error);
1723                 }
1724                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1725                         cam_status status;
1726                         mpt_freeze_ccb(ccb);
1727                         if (error == EFBIG) {
1728                                 status = CAM_REQ_TOO_BIG;
1729                         } else if (error == ENOMEM) {
1730                                 if (mpt->outofbeer == 0) {
1731                                         mpt->outofbeer = 1;
1732                                         xpt_freeze_simq(mpt->sim, 1);
1733                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1734                                             "FREEZEQ\n");
1735                                 }
1736                                 status = CAM_REQUEUE_REQ;
1737                         } else {
1738                                 status = CAM_REQ_CMP_ERR;
1739                         }
1740                         mpt_set_ccb_status(ccb, status);
1741                 }
1742                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1743                         request_t *cmd_req =
1744                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1745                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1746                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1747                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1748                 }
1749                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1750                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1751                 xpt_done(ccb);
1752                 CAMLOCK_2_MPTLOCK(mpt);
1753                 mpt_free_request(mpt, req);
1754                 MPTLOCK_2_CAMLOCK(mpt);
1755                 return;
1756         }
1757
1758         /*
1759          * No data to transfer?
1760          * Just make a single simple SGL with zero length.
1761          */
1762
1763         if (mpt->verbose >= MPT_PRT_DEBUG) {
1764                 int tidx = ((char *)sglp) - mpt_off;
1765                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1766         }
1767
1768         if (nseg == 0) {
1769                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1770                 MPI_pSGE_SET_FLAGS(se1,
1771                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1772                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1773                 se1->FlagsLength = htole32(se1->FlagsLength);
1774                 goto out;
1775         }
1776
1777
1778         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
1779         if (istgt == 0) {
1780                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1781                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1782                 }
1783         } else {
1784                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1785                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1786                 }
1787         }
1788
1789         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1790                 bus_dmasync_op_t op;
1791                 if (istgt) {
1792                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1793                                 op = BUS_DMASYNC_PREREAD;
1794                         } else {
1795                                 op = BUS_DMASYNC_PREWRITE;
1796                         }
1797                 } else {
1798                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1799                                 op = BUS_DMASYNC_PREWRITE;
1800                         } else {
1801                                 op = BUS_DMASYNC_PREREAD;
1802                         }
1803                 }
1804                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1805         }
1806
1807         /*
1808          * Okay, fill in what we can at the end of the command frame.
1809          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1810          * the command frame.
1811          *
1812          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1813          * SIMPLE32 pointers and start doing CHAIN32 entries after
1814          * that.
1815          */
1816
1817         if (nseg < MPT_NSGL_FIRST(mpt)) {
1818                 first_lim = nseg;
1819         } else {
1820                 /*
1821                  * Leave room for CHAIN element
1822                  */
1823                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1824         }
1825
1826         se = (SGE_SIMPLE32 *) sglp;
1827         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1828                 uint32_t tf;
1829
1830                 memset(se, 0,sizeof (*se));
1831                 se->Address = htole32(dm_segs->ds_addr);
1832
1833
1834
1835                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1836                 tf = flags;
1837                 if (seg == first_lim - 1) {
1838                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1839                 }
1840                 if (seg == nseg - 1) {
1841                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1842                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1843                 }
1844                 MPI_pSGE_SET_FLAGS(se, tf);
1845                 se->FlagsLength = htole32(se->FlagsLength);
1846         }
1847
1848         if (seg == nseg) {
1849                 goto out;
1850         }
1851
1852         /*
1853          * Tell the IOC where to find the first chain element.
1854          */
1855         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1856         nxt_off = MPT_RQSL(mpt);
1857         trq = req;
1858
1859         /*
1860          * Make up the rest of the data segments out of a chain element
1861          * (contiained in the current request frame) which points to
1862          * SIMPLE32 elements in the next request frame, possibly ending
1863          * with *another* chain element (if there's more).
1864          */
1865         while (seg < nseg) {
1866                 int this_seg_lim;
1867                 uint32_t tf, cur_off;
1868                 bus_addr_t chain_list_addr;
1869
1870                 /*
1871                  * Point to the chain descriptor. Note that the chain
1872                  * descriptor is at the end of the *previous* list (whether
1873                  * chain or simple).
1874                  */
1875                 ce = (SGE_CHAIN32 *) se;
1876
1877                 /*
1878                  * Before we change our current pointer, make  sure we won't
1879                  * overflow the request area with this frame. Note that we
1880                  * test against 'greater than' here as it's okay in this case
1881                  * to have next offset be just outside the request area.
1882                  */
1883                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1884                         nxt_off = MPT_REQUEST_AREA;
1885                         goto next_chain;
1886                 }
1887
1888                 /*
1889                  * Set our SGE element pointer to the beginning of the chain
1890                  * list and update our next chain list offset.
1891                  */
1892                 se = (SGE_SIMPLE32 *) &mpt_off[nxt_off];
1893                 cur_off = nxt_off;
1894                 nxt_off += MPT_RQSL(mpt);
1895
1896                 /*
1897                  * Now initialized the chain descriptor.
1898                  */
1899                 memset(ce, 0, sizeof (*ce));
1900
1901                 /*
1902                  * Get the physical address of the chain list.
1903                  */
1904                 chain_list_addr = trq->req_pbuf;
1905                 chain_list_addr += cur_off;
1906
1907
1908
1909                 ce->Address = htole32(chain_list_addr);
1910                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
1911
1912
1913                 /*
1914                  * If we have more than a frame's worth of segments left,
1915                  * set up the chain list to have the last element be another
1916                  * chain descriptor.
1917                  */
1918                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1919                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1920                         /*
1921                          * The length of the chain is the length in bytes of the
1922                          * number of segments plus the next chain element.
1923                          *
1924                          * The next chain descriptor offset is the length,
1925                          * in words, of the number of segments.
1926                          */
1927                         ce->Length = (this_seg_lim - seg) *
1928                             sizeof (SGE_SIMPLE32);
1929                         ce->NextChainOffset = ce->Length >> 2;
1930                         ce->Length += sizeof (SGE_CHAIN32);
1931                 } else {
1932                         this_seg_lim = nseg;
1933                         ce->Length = (this_seg_lim - seg) *
1934                             sizeof (SGE_SIMPLE32);
1935                 }
1936                 ce->Length = htole16(ce->Length);
1937
1938                 /*
1939                  * Fill in the chain list SGE elements with our segment data.
1940                  *
1941                  * If we're the last element in this chain list, set the last
1942                  * element flag. If we're the completely last element period,
1943                  * set the end of list and end of buffer flags.
1944                  */
1945                 while (seg < this_seg_lim) {
1946                         memset(se, 0, sizeof (*se));
1947                         se->Address = htole32(dm_segs->ds_addr);
1948
1949
1950
1951
1952                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1953                         tf = flags;
1954                         if (seg ==  this_seg_lim - 1) {
1955                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1956                         }
1957                         if (seg == nseg - 1) {
1958                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1959                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1960                         }
1961                         MPI_pSGE_SET_FLAGS(se, tf);
1962                         se->FlagsLength = htole32(se->FlagsLength);
1963                         se++;
1964                         seg++;
1965                         dm_segs++;
1966                 }
1967
1968     next_chain:
1969                 /*
1970                  * If we have more segments to do and we've used up all of
1971                  * the space in a request area, go allocate another one
1972                  * and chain to that.
1973                  */
1974                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1975                         request_t *nrq;
1976
1977                         CAMLOCK_2_MPTLOCK(mpt);
1978                         nrq = mpt_get_request(mpt, FALSE);
1979                         MPTLOCK_2_CAMLOCK(mpt);
1980
1981                         if (nrq == NULL) {
1982                                 error = ENOMEM;
1983                                 goto bad;
1984                         }
1985
1986                         /*
1987                          * Append the new request area on the tail of our list.
1988                          */
1989                         if ((trq = req->chain) == NULL) {
1990                                 req->chain = nrq;
1991                         } else {
1992                                 while (trq->chain != NULL) {
1993                                         trq = trq->chain;
1994                                 }
1995                                 trq->chain = nrq;
1996                         }
1997                         trq = nrq;
1998                         mpt_off = trq->req_vbuf;
1999                         if (mpt->verbose >= MPT_PRT_DEBUG) {
2000                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
2001                         }
2002                         nxt_off = 0;
2003                 }
2004         }
2005 out:
2006
2007         /*
2008          * Last time we need to check if this CCB needs to be aborted.
2009          */
2010         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2011                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2012                         request_t *cmd_req =
2013                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2014                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
2015                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
2016                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
2017                 }
2018                 mpt_prt(mpt,
2019                     "mpt_execute_req: I/O cancelled (status 0x%x)\n",
2020                     ccb->ccb_h.status & CAM_STATUS_MASK);
2021                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
2022                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2023                 }
2024                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2025                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
2026                 xpt_done(ccb);
2027                 CAMLOCK_2_MPTLOCK(mpt);
2028                 mpt_free_request(mpt, req);
2029                 MPTLOCK_2_CAMLOCK(mpt);
2030                 return;
2031         }
2032
2033         ccb->ccb_h.status |= CAM_SIM_QUEUED;
2034         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
2035                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
2036                     mpt_timeout, ccb);
2037         }
2038         if (mpt->verbose > MPT_PRT_DEBUG) {
2039                 int nc = 0;
2040                 mpt_print_request(req->req_vbuf);
2041                 for (trq = req->chain; trq; trq = trq->chain) {
2042                         kprintf("  Additional Chain Area %d\n", nc++);
2043                         mpt_dump_sgl(trq->req_vbuf, 0);
2044                 }
2045         }
2046
2047         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2048                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2049                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
2050 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
2051                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2052                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
2053                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
2054                 } else {
2055                         tgt->state = TGT_STATE_MOVING_DATA;
2056                 }
2057 #else
2058                 tgt->state = TGT_STATE_MOVING_DATA;
2059 #endif
2060         }
2061         CAMLOCK_2_MPTLOCK(mpt);
2062         mpt_send_cmd(mpt, req);
2063         MPTLOCK_2_CAMLOCK(mpt);
2064 }
2065
2066 static void
2067 mpt_start(struct cam_sim *sim, union ccb *ccb)
2068 {
2069         request_t *req;
2070         struct mpt_softc *mpt;
2071         MSG_SCSI_IO_REQUEST *mpt_req;
2072         struct ccb_scsiio *csio = &ccb->csio;
2073         struct ccb_hdr *ccbh = &ccb->ccb_h;
2074         bus_dmamap_callback_t *cb;
2075         target_id_t tgt;
2076         int raid_passthru;
2077
2078         /* Get the pointer for the physical addapter */
2079         mpt = ccb->ccb_h.ccb_mpt_ptr;
2080         raid_passthru = (sim == mpt->phydisk_sim);
2081
2082         CAMLOCK_2_MPTLOCK(mpt);
2083         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
2084                 if (mpt->outofbeer == 0) {
2085                         mpt->outofbeer = 1;
2086                         xpt_freeze_simq(mpt->sim, 1);
2087                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
2088                 }
2089                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2090                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
2091                 MPTLOCK_2_CAMLOCK(mpt);
2092                 xpt_done(ccb);
2093                 return;
2094         }
2095 #ifdef  INVARIANTS
2096         mpt_req_not_spcl(mpt, req, "mpt_start", __LINE__);
2097 #endif
2098         MPTLOCK_2_CAMLOCK(mpt);
2099
2100         if (sizeof (bus_addr_t) > 4) {
2101                 cb = mpt_execute_req_a64;
2102         } else {
2103                 cb = mpt_execute_req;
2104         }
2105
2106         /*
2107          * Link the ccb and the request structure so we can find
2108          * the other knowing either the request or the ccb
2109          */
2110         req->ccb = ccb;
2111         ccb->ccb_h.ccb_req_ptr = req;
2112
2113         /* Now we build the command for the IOC */
2114         mpt_req = req->req_vbuf;
2115         memset(mpt_req, 0, sizeof (MSG_SCSI_IO_REQUEST));
2116
2117         mpt_req->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2118         if (raid_passthru) {
2119                 mpt_req->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2120                 CAMLOCK_2_MPTLOCK(mpt);
2121                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
2122                         MPTLOCK_2_CAMLOCK(mpt);
2123                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2124                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
2125                         xpt_done(ccb);
2126                         return;
2127                 }
2128                 MPTLOCK_2_CAMLOCK(mpt);
2129                 mpt_req->Bus = 0;       /* we never set bus here */
2130         } else {
2131                 tgt = ccb->ccb_h.target_id;
2132                 mpt_req->Bus = 0;       /* XXX */
2133
2134         }
2135         mpt_req->SenseBufferLength =
2136                 (csio->sense_len < MPT_SENSE_SIZE) ?
2137                  csio->sense_len : MPT_SENSE_SIZE;
2138
2139         /*
2140          * We use the message context to find the request structure when we
2141          * Get the command completion interrupt from the IOC.
2142          */
2143         mpt_req->MsgContext = htole32(req->index | scsi_io_handler_id);
2144
2145         /* Which physical device to do the I/O on */
2146         mpt_req->TargetID = tgt;
2147
2148         /* We assume a single level LUN type */
2149         if (ccb->ccb_h.target_lun >= MPT_MAX_LUNS) {
2150                 mpt_req->LUN[0] = 0x40 | ((ccb->ccb_h.target_lun >> 8) & 0x3f);
2151                 mpt_req->LUN[1] = ccb->ccb_h.target_lun & 0xff;
2152         } else {
2153                 mpt_req->LUN[1] = ccb->ccb_h.target_lun;
2154         }
2155
2156         /* Set the direction of the transfer */
2157         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2158                 mpt_req->Control = MPI_SCSIIO_CONTROL_READ;
2159         } else if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2160                 mpt_req->Control = MPI_SCSIIO_CONTROL_WRITE;
2161         } else {
2162                 mpt_req->Control = MPI_SCSIIO_CONTROL_NODATATRANSFER;
2163         }
2164
2165         if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0) {
2166                 switch(ccb->csio.tag_action) {
2167                 case MSG_HEAD_OF_Q_TAG:
2168                         mpt_req->Control |= MPI_SCSIIO_CONTROL_HEADOFQ;
2169                         break;
2170                 case MSG_ACA_TASK:
2171                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ACAQ;
2172                         break;
2173                 case MSG_ORDERED_Q_TAG:
2174                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ORDEREDQ;
2175                         break;
2176                 case MSG_SIMPLE_Q_TAG:
2177                 default:
2178                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2179                         break;
2180                 }
2181         } else {
2182                 if (mpt->is_fc || mpt->is_sas) {
2183                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2184                 } else {
2185                         /* XXX No such thing for a target doing packetized. */
2186                         mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
2187                 }
2188         }
2189
2190         if (mpt->is_spi) {
2191                 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) {
2192                         mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT;
2193                 }
2194         }
2195         mpt_req->Control = htole32(mpt_req->Control);
2196
2197         /* Copy the scsi command block into place */
2198         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
2199                 bcopy(csio->cdb_io.cdb_ptr, mpt_req->CDB, csio->cdb_len);
2200         } else {
2201                 bcopy(csio->cdb_io.cdb_bytes, mpt_req->CDB, csio->cdb_len);
2202         }
2203
2204         mpt_req->CDBLength = csio->cdb_len;
2205         mpt_req->DataLength = htole32(csio->dxfer_len);
2206         mpt_req->SenseBufferLowAddr = htole32(req->sense_pbuf);
2207
2208         /*
2209          * Do a *short* print here if we're set to MPT_PRT_DEBUG
2210          */
2211         if (mpt->verbose == MPT_PRT_DEBUG) {
2212                 U32 df;
2213                 mpt_prt(mpt, "mpt_start: %s op 0x%x ",
2214                     (mpt_req->Function == MPI_FUNCTION_SCSI_IO_REQUEST)?
2215                     "SCSI_IO_REQUEST" : "SCSI_IO_PASSTHRU", mpt_req->CDB[0]);
2216                 df = mpt_req->Control & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
2217                 if (df != MPI_SCSIIO_CONTROL_NODATATRANSFER) {
2218                         mpt_prtc(mpt, "(%s %u byte%s ",
2219                             (df == MPI_SCSIIO_CONTROL_READ)?
2220                             "read" : "write",  csio->dxfer_len,
2221                             (csio->dxfer_len == 1)? ")" : "s)");
2222                 }
2223                 mpt_prtc(mpt, "tgt %u lun %u req %p:%u\n", tgt,
2224                     ccb->ccb_h.target_lun, req, req->serno);
2225         }
2226
2227         /*
2228          * If we have any data to send with this command map it into bus space.
2229          */
2230         if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2231                 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) {
2232                         /*
2233                          * We've been given a pointer to a single buffer.
2234                          */
2235                         if ((ccbh->flags & CAM_DATA_PHYS) == 0) {
2236                                 /*
2237                                  * Virtual address that needs to translated into
2238                                  * one or more physical address ranges.
2239                                  */
2240                                 int error;
2241                                 crit_enter();
2242                                 error = bus_dmamap_load(mpt->buffer_dmat,
2243                                     req->dmap, csio->data_ptr, csio->dxfer_len,
2244                                     cb, req, 0);
2245                                 crit_exit();
2246                                 if (error == EINPROGRESS) {
2247                                         /*
2248                                          * So as to maintain ordering,
2249                                          * freeze the controller queue
2250                                          * until our mapping is
2251                                          * returned.
2252                                          */
2253                                         xpt_freeze_simq(mpt->sim, 1);
2254                                         ccbh->status |= CAM_RELEASE_SIMQ;
2255                                 }
2256                         } else {
2257                                 /*
2258                                  * We have been given a pointer to single
2259                                  * physical buffer.
2260                                  */
2261                                 struct bus_dma_segment seg;
2262                                 seg.ds_addr =
2263                                     (bus_addr_t)(vm_offset_t)csio->data_ptr;
2264                                 seg.ds_len = csio->dxfer_len;
2265                                 (*cb)(req, &seg, 1, 0);
2266                         }
2267                 } else {
2268                         /*
2269                          * We have been given a list of addresses.
2270                          * This case could be easily supported but they are not
2271                          * currently generated by the CAM subsystem so there
2272                          * is no point in wasting the time right now.
2273                          */
2274                         struct bus_dma_segment *segs;
2275                         if ((ccbh->flags & CAM_SG_LIST_PHYS) == 0) {
2276                                 (*cb)(req, NULL, 0, EFAULT);
2277                         } else {
2278                                 /* Just use the segments provided */
2279                                 segs = (struct bus_dma_segment *)csio->data_ptr;
2280                                 (*cb)(req, segs, csio->sglist_cnt, 0);
2281                         }
2282                 }
2283         } else {
2284                 (*cb)(req, NULL, 0, 0);
2285         }
2286 }
2287
2288 static int
2289 mpt_bus_reset(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun,
2290     int sleep_ok)
2291 {
2292         int   error;
2293         uint16_t status;
2294         uint8_t response;
2295
2296         error = mpt_scsi_send_tmf(mpt,
2297             (tgt != CAM_TARGET_WILDCARD || lun != CAM_LUN_WILDCARD) ?
2298             MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET :
2299             MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
2300             mpt->is_fc ? MPI_SCSITASKMGMT_MSGFLAGS_LIP_RESET_OPTION : 0,
2301             0,  /* XXX How do I get the channel ID? */
2302             tgt != CAM_TARGET_WILDCARD ? tgt : 0,
2303             lun != CAM_LUN_WILDCARD ? lun : 0,
2304             0, sleep_ok);
2305
2306         if (error != 0) {
2307                 /*
2308                  * mpt_scsi_send_tmf hard resets on failure, so no
2309                  * need to do so here.
2310                  */
2311                 mpt_prt(mpt,
2312                     "mpt_bus_reset: mpt_scsi_send_tmf returned %d\n", error);
2313                 return (EIO);
2314         }
2315
2316         /* Wait for bus reset to be processed by the IOC. */
2317         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
2318             REQ_STATE_DONE, sleep_ok, 5000);
2319
2320         status = le16toh(mpt->tmf_req->IOCStatus);
2321         response = mpt->tmf_req->ResponseCode;
2322         mpt->tmf_req->state = REQ_STATE_FREE;
2323
2324         if (error) {
2325                 mpt_prt(mpt, "mpt_bus_reset: Reset timed-out. "
2326                     "Resetting controller.\n");
2327                 mpt_reset(mpt, TRUE);
2328                 return (ETIMEDOUT);
2329         }
2330
2331         if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
2332                 mpt_prt(mpt, "mpt_bus_reset: TMF IOC Status 0x%x. "
2333                     "Resetting controller.\n", status);
2334                 mpt_reset(mpt, TRUE);
2335                 return (EIO);
2336         }
2337
2338         if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
2339             response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
2340                 mpt_prt(mpt, "mpt_bus_reset: TMF Response 0x%x. "
2341                     "Resetting controller.\n", response);
2342                 mpt_reset(mpt, TRUE);
2343                 return (EIO);
2344         }
2345         return (0);
2346 }
2347
2348 static int
2349 mpt_fc_reset_link(struct mpt_softc *mpt, int dowait)
2350 {
2351         int r = 0;
2352         request_t *req;
2353         PTR_MSG_FC_PRIMITIVE_SEND_REQUEST fc;
2354
2355         req = mpt_get_request(mpt, FALSE);
2356         if (req == NULL) {
2357                 return (ENOMEM);
2358         }
2359         fc = req->req_vbuf;
2360         memset(fc, 0, sizeof(*fc));
2361         fc->SendFlags = MPI_FC_PRIM_SEND_FLAGS_RESET_LINK;
2362         fc->Function = MPI_FUNCTION_FC_PRIMITIVE_SEND;
2363         fc->MsgContext = htole32(req->index | fc_els_handler_id);
2364         mpt_send_cmd(mpt, req);
2365         if (dowait) {
2366                 r = mpt_wait_req(mpt, req, REQ_STATE_DONE,
2367                     REQ_STATE_DONE, FALSE, 60 * 1000);
2368                 if (r == 0) {
2369                         mpt_free_request(mpt, req);
2370                 }
2371         }
2372         return (r);
2373 }
2374
2375 static void
2376 mpt_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
2377 {
2378     xpt_free_path(ccb->ccb_h.path);
2379     kfree(ccb, M_TEMP);
2380 }
2381
2382 static int
2383 mpt_cam_event(struct mpt_softc *mpt, request_t *req,
2384               MSG_EVENT_NOTIFY_REPLY *msg)
2385 {
2386         uint32_t data0, data1;
2387
2388         data0 = le32toh(msg->Data[0]);
2389         data1 = le32toh(msg->Data[1]);
2390         switch(msg->Event & 0xFF) {
2391         case MPI_EVENT_UNIT_ATTENTION:
2392                 mpt_prt(mpt, "UNIT ATTENTION: Bus: 0x%02x TargetID: 0x%02x\n",
2393                     (data0 >> 8) & 0xff, data0 & 0xff);
2394                 break;
2395
2396         case MPI_EVENT_IOC_BUS_RESET:
2397                 /* We generated a bus reset */
2398                 mpt_prt(mpt, "IOC Generated Bus Reset Port: %d\n",
2399                     (data0 >> 8) & 0xff);
2400                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2401                 break;
2402
2403         case MPI_EVENT_EXT_BUS_RESET:
2404                 /* Someone else generated a bus reset */
2405                 mpt_prt(mpt, "External Bus Reset Detected\n");
2406                 /*
2407                  * These replies don't return EventData like the MPI
2408                  * spec says they do
2409                  */
2410                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2411                 break;
2412
2413         case MPI_EVENT_RESCAN:
2414         {
2415                 union ccb *ccb;
2416                 uint32_t pathid;
2417                 /*
2418                  * In general this means a device has been added to the loop.
2419                  */
2420                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2421                 if (mpt->ready == 0) {
2422                         break;
2423                 }
2424                 if (mpt->phydisk_sim) {
2425                         pathid = cam_sim_path(mpt->phydisk_sim);
2426                 } else {
2427                         pathid = cam_sim_path(mpt->sim);
2428                 }
2429                 MPTLOCK_2_CAMLOCK(mpt);
2430                 /*
2431                  * Allocate a CCB, create a wildcard path for this bus,
2432                  * and schedule a rescan.
2433                  */
2434                 ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO);
2435
2436                 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, pathid,
2437                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2438                         CAMLOCK_2_MPTLOCK(mpt);
2439                         mpt_prt(mpt, "unable to create path for rescan\n");
2440                         kfree(ccb, M_TEMP);
2441                         break;
2442                 }
2443
2444                 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/);
2445                 ccb->ccb_h.func_code = XPT_SCAN_BUS;
2446                 ccb->ccb_h.cbfcnp = mpt_cam_rescan_callback;
2447                 ccb->crcn.flags = CAM_FLAG_NONE;
2448                 xpt_action(ccb);
2449
2450                 /* scan is now in progress */
2451
2452                 CAMLOCK_2_MPTLOCK(mpt);
2453                 break;
2454         }
2455         case MPI_EVENT_LINK_STATUS_CHANGE:
2456                 mpt_prt(mpt, "Port %d: LinkState: %s\n",
2457                     (data1 >> 8) & 0xff,
2458                     ((data0 & 0xff) == 0)?  "Failed" : "Active");
2459                 break;
2460
2461         case MPI_EVENT_LOOP_STATE_CHANGE:
2462                 switch ((data0 >> 16) & 0xff) {
2463                 case 0x01:
2464                         mpt_prt(mpt,
2465                             "Port 0x%x: FC LinkEvent: LIP(%02x,%02x) "
2466                             "(Loop Initialization)\n",
2467                             (data1 >> 8) & 0xff,
2468                             (data0 >> 8) & 0xff,
2469                             (data0     ) & 0xff);
2470                         switch ((data0 >> 8) & 0xff) {
2471                         case 0xF7:
2472                                 if ((data0 & 0xff) == 0xF7) {
2473                                         mpt_prt(mpt, "Device needs AL_PA\n");
2474                                 } else {
2475                                         mpt_prt(mpt, "Device %02x doesn't like "
2476                                             "FC performance\n",
2477                                             data0 & 0xFF);
2478                                 }
2479                                 break;
2480                         case 0xF8:
2481                                 if ((data0 & 0xff) == 0xF7) {
2482                                         mpt_prt(mpt, "Device had loop failure "
2483                                             "at its receiver prior to acquiring"
2484                                             " AL_PA\n");
2485                                 } else {
2486                                         mpt_prt(mpt, "Device %02x detected loop"
2487                                             " failure at its receiver\n",
2488                                             data0 & 0xFF);
2489                                 }
2490                                 break;
2491                         default:
2492                                 mpt_prt(mpt, "Device %02x requests that device "
2493                                     "%02x reset itself\n",
2494                                     data0 & 0xFF,
2495                                     (data0 >> 8) & 0xFF);
2496                                 break;
2497                         }
2498                         break;
2499                 case 0x02:
2500                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2501                             "LPE(%02x,%02x) (Loop Port Enable)\n",
2502                             (data1 >> 8) & 0xff, /* Port */
2503                             (data0 >>  8) & 0xff, /* Character 3 */
2504                             (data0      ) & 0xff  /* Character 4 */);
2505                         break;
2506                 case 0x03:
2507                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2508                             "LPB(%02x,%02x) (Loop Port Bypass)\n",
2509                             (data1 >> 8) & 0xff, /* Port */
2510                             (data0 >> 8) & 0xff, /* Character 3 */
2511                             (data0     ) & 0xff  /* Character 4 */);
2512                         break;
2513                 default:
2514                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: Unknown "
2515                             "FC event (%02x %02x %02x)\n",
2516                             (data1 >> 8) & 0xff, /* Port */
2517                             (data0 >> 16) & 0xff, /* Event */
2518                             (data0 >>  8) & 0xff, /* Character 3 */
2519                             (data0      ) & 0xff  /* Character 4 */);
2520                 }
2521                 break;
2522
2523         case MPI_EVENT_LOGOUT:
2524                 mpt_prt(mpt, "FC Logout Port: %d N_PortID: %02x\n",
2525                     (data1 >> 8) & 0xff, data0);
2526                 break;
2527         case MPI_EVENT_QUEUE_FULL:
2528         {
2529                 struct cam_sim *sim;
2530                 struct cam_path *tmppath;
2531                 struct ccb_relsim crs;
2532                 PTR_EVENT_DATA_QUEUE_FULL pqf;
2533                 lun_id_t lun_id;
2534
2535                 pqf = (PTR_EVENT_DATA_QUEUE_FULL)msg->Data;
2536                 pqf->CurrentDepth = le16toh(pqf->CurrentDepth);
2537                 mpt_prt(mpt, "QUEUE FULL EVENT: Bus 0x%02x Target 0x%02x Depth "
2538                     "%d\n", pqf->Bus, pqf->TargetID, pqf->CurrentDepth);
2539                 if (mpt->phydisk_sim) {
2540                         sim = mpt->phydisk_sim;
2541                 } else {
2542                         sim = mpt->sim;
2543                 }
2544                 MPTLOCK_2_CAMLOCK(mpt);
2545                 for (lun_id = 0; lun_id < MPT_MAX_LUNS; lun_id++) {
2546                         if (xpt_create_path(&tmppath, NULL, cam_sim_path(sim),
2547                             pqf->TargetID, lun_id) != CAM_REQ_CMP) {
2548                                 mpt_prt(mpt, "unable to create a path to send "
2549                                     "XPT_REL_SIMQ");
2550                                 CAMLOCK_2_MPTLOCK(mpt);
2551                                 break;
2552                         }
2553                         xpt_setup_ccb(&crs.ccb_h, tmppath, 5);
2554                         crs.ccb_h.func_code = XPT_REL_SIMQ;
2555                         crs.ccb_h.flags = CAM_DEV_QFREEZE;
2556                         crs.release_flags = RELSIM_ADJUST_OPENINGS;
2557                         crs.openings = pqf->CurrentDepth - 1;
2558                         xpt_action((union ccb *)&crs);
2559                         if (crs.ccb_h.status != CAM_REQ_CMP) {
2560                                 mpt_prt(mpt, "XPT_REL_SIMQ failed\n");
2561                         }
2562                         xpt_free_path(tmppath);
2563                 }
2564                 CAMLOCK_2_MPTLOCK(mpt);
2565                 break;
2566         }
2567         case MPI_EVENT_IR_RESYNC_UPDATE:
2568                 mpt_prt(mpt, "IR resync update %d completed\n",
2569                     (data0 >> 16) & 0xff);
2570                 break;
2571         case MPI_EVENT_EVENT_CHANGE:
2572         case MPI_EVENT_INTEGRATED_RAID:
2573         case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
2574         case MPI_EVENT_SAS_SES:
2575                 break;
2576         default:
2577                 mpt_lprt(mpt, MPT_PRT_WARN, "mpt_cam_event: 0x%x\n",
2578                     msg->Event & 0xFF);
2579                 return (0);
2580         }
2581         return (1);
2582 }
2583
2584 /*
2585  * Reply path for all SCSI I/O requests, called from our
2586  * interrupt handler by extracting our handler index from
2587  * the MsgContext field of the reply from the IOC.
2588  *
2589  * This routine is optimized for the common case of a
2590  * completion without error.  All exception handling is
2591  * offloaded to non-inlined helper routines to minimize
2592  * cache footprint.
2593  */
2594 static int
2595 mpt_scsi_reply_handler(struct mpt_softc *mpt, request_t *req,
2596     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2597 {
2598         MSG_SCSI_IO_REQUEST *scsi_req;
2599         union ccb *ccb;
2600
2601         if (req->state == REQ_STATE_FREE) {
2602                 mpt_prt(mpt, "mpt_scsi_reply_handler: req already free\n");
2603                 return (TRUE);
2604         }
2605
2606         scsi_req = (MSG_SCSI_IO_REQUEST *)req->req_vbuf;
2607         ccb = req->ccb;
2608         if (ccb == NULL) {
2609                 mpt_prt(mpt, "mpt_scsi_reply_handler: req %p:%u with no ccb\n",
2610                     req, req->serno);
2611                 return (TRUE);
2612         }
2613
2614         mpt_req_untimeout(req, mpt_timeout, ccb);
2615         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2616
2617         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2618                 bus_dmasync_op_t op;
2619
2620                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
2621                         op = BUS_DMASYNC_POSTREAD;
2622                 else
2623                         op = BUS_DMASYNC_POSTWRITE;
2624                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
2625                 bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2626         }
2627
2628         if (reply_frame == NULL) {
2629                 /*
2630                  * Context only reply, completion without error status.
2631                  */
2632                 ccb->csio.resid = 0;
2633                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
2634                 ccb->csio.scsi_status = SCSI_STATUS_OK;
2635         } else {
2636                 mpt_scsi_reply_frame_handler(mpt, req, reply_frame);
2637         }
2638
2639         if (mpt->outofbeer) {
2640                 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2641                 mpt->outofbeer = 0;
2642                 mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
2643         }
2644         if (scsi_req->CDB[0] == INQUIRY && (scsi_req->CDB[1] & SI_EVPD) == 0) {
2645                 struct scsi_inquiry_data *iq =
2646                     (struct scsi_inquiry_data *)ccb->csio.data_ptr;
2647                 if (scsi_req->Function ==
2648                     MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
2649                         /*
2650                          * Fake out the device type so that only the
2651                          * pass-thru device will attach.
2652                          */
2653                         iq->device &= ~0x1F;
2654                         iq->device |= T_NODEVICE;
2655                 }
2656         }
2657         if (mpt->verbose == MPT_PRT_DEBUG) {
2658                 mpt_prt(mpt, "mpt_scsi_reply_handler: %p:%u complete\n",
2659                     req, req->serno);
2660         }
2661         KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
2662         MPTLOCK_2_CAMLOCK(mpt);
2663         xpt_done(ccb);
2664         CAMLOCK_2_MPTLOCK(mpt);
2665         if ((req->state & REQ_STATE_TIMEDOUT) == 0) {
2666                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2667         } else {
2668                 mpt_prt(mpt, "completing timedout/aborted req %p:%u\n",
2669                     req, req->serno);
2670                 TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
2671         }
2672         KASSERT((req->state & REQ_STATE_NEED_WAKEUP) == 0,
2673             ("CCB req needed wakeup"));
2674 #ifdef  INVARIANTS
2675         mpt_req_not_spcl(mpt, req, "mpt_scsi_reply_handler", __LINE__);
2676 #endif
2677         mpt_free_request(mpt, req);
2678         return (TRUE);
2679 }
2680
2681 static int
2682 mpt_scsi_tmf_reply_handler(struct mpt_softc *mpt, request_t *req,
2683     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2684 {
2685         MSG_SCSI_TASK_MGMT_REPLY *tmf_reply;
2686
2687         KASSERT(req == mpt->tmf_req, ("TMF Reply not using mpt->tmf_req"));
2688 #ifdef  INVARIANTS
2689         mpt_req_not_spcl(mpt, req, "mpt_scsi_tmf_reply_handler", __LINE__);
2690 #endif
2691         tmf_reply = (MSG_SCSI_TASK_MGMT_REPLY *)reply_frame;
2692         /* Record IOC Status and Response Code of TMF for any waiters. */
2693         req->IOCStatus = le16toh(tmf_reply->IOCStatus);
2694         req->ResponseCode = tmf_reply->ResponseCode;
2695
2696         mpt_lprt(mpt, MPT_PRT_DEBUG, "TMF complete: req %p:%u status 0x%x\n",
2697             req, req->serno, le16toh(tmf_reply->IOCStatus));
2698         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2699         if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
2700                 req->state |= REQ_STATE_DONE;
2701                 wakeup(req);
2702         } else {
2703                 mpt->tmf_req->state = REQ_STATE_FREE;
2704         }
2705         return (TRUE);
2706 }
2707
2708 /*
2709  * XXX: Move to definitions file
2710  */
2711 #define ELS     0x22
2712 #define FC4LS   0x32
2713 #define ABTS    0x81
2714 #define BA_ACC  0x84
2715
2716 #define LS_RJT  0x01
2717 #define LS_ACC  0x02
2718 #define PLOGI   0x03
2719 #define LOGO    0x05
2720 #define SRR     0x14
2721 #define PRLI    0x20
2722 #define PRLO    0x21
2723 #define ADISC   0x52
2724 #define RSCN    0x61
2725
2726 static void
2727 mpt_fc_els_send_response(struct mpt_softc *mpt, request_t *req,
2728     PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp, U8 length)
2729 {
2730         uint32_t fl;
2731         MSG_LINK_SERVICE_RSP_REQUEST tmp;
2732         PTR_MSG_LINK_SERVICE_RSP_REQUEST rsp;
2733
2734         /*
2735          * We are going to reuse the ELS request to send this response back.
2736          */
2737         rsp = &tmp;
2738         memset(rsp, 0, sizeof(*rsp));
2739
2740 #ifdef  USE_IMMEDIATE_LINK_DATA
2741         /*
2742          * Apparently the IMMEDIATE stuff doesn't seem to work.
2743          */
2744         rsp->RspFlags = LINK_SERVICE_RSP_FLAGS_IMMEDIATE;
2745 #endif
2746         rsp->RspLength = length;
2747         rsp->Function = MPI_FUNCTION_FC_LINK_SRVC_RSP;
2748         rsp->MsgContext = htole32(req->index | fc_els_handler_id);
2749
2750         /*
2751          * Copy over information from the original reply frame to
2752          * it's correct place in the response.
2753          */
2754         memcpy((U8 *)rsp + 0x0c, (U8 *)rp + 0x1c, 24);
2755
2756         /*
2757          * And now copy back the temporary area to the original frame.
2758          */
2759         memcpy(req->req_vbuf, rsp, sizeof (MSG_LINK_SERVICE_RSP_REQUEST));
2760         rsp = req->req_vbuf;
2761
2762 #ifdef  USE_IMMEDIATE_LINK_DATA
2763         memcpy((U8 *)&rsp->SGL, &((U8 *)req->req_vbuf)[MPT_RQSL(mpt)], length);
2764 #else
2765 {
2766         PTR_SGE_SIMPLE32 se = (PTR_SGE_SIMPLE32) &rsp->SGL;
2767         bus_addr_t paddr = req->req_pbuf;
2768         paddr += MPT_RQSL(mpt);
2769
2770         fl =
2771                 MPI_SGE_FLAGS_HOST_TO_IOC       |
2772                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
2773                 MPI_SGE_FLAGS_LAST_ELEMENT      |
2774                 MPI_SGE_FLAGS_END_OF_LIST       |
2775                 MPI_SGE_FLAGS_END_OF_BUFFER;
2776         fl <<= MPI_SGE_FLAGS_SHIFT;
2777         fl |= (length);
2778         se->FlagsLength = htole32(fl);
2779         se->Address = htole32((uint32_t) paddr);
2780 }
2781 #endif
2782
2783         /*
2784          * Send it on...
2785          */
2786         mpt_send_cmd(mpt, req);
2787 }
2788
2789 static int
2790 mpt_fc_els_reply_handler(struct mpt_softc *mpt, request_t *req,
2791     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2792 {
2793         PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp =
2794             (PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY) reply_frame;
2795         U8 rctl;
2796         U8 type;
2797         U8 cmd;
2798         U16 status = le16toh(reply_frame->IOCStatus);
2799         U32 *elsbuf;
2800         int ioindex;
2801         int do_refresh = TRUE;
2802
2803 #ifdef  INVARIANTS
2804         KASSERT(mpt_req_on_free_list(mpt, req) == 0,
2805             ("fc_els_reply_handler: req %p:%u for function %x on freelist!",
2806             req, req->serno, rp->Function));
2807         if (rp->Function != MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2808                 mpt_req_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2809         } else {
2810                 mpt_req_not_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2811         }
2812 #endif
2813         mpt_lprt(mpt, MPT_PRT_DEBUG,
2814             "FC_ELS Complete: req %p:%u, reply %p function %x\n",
2815             req, req->serno, reply_frame, reply_frame->Function);
2816
2817         if  (status != MPI_IOCSTATUS_SUCCESS) {
2818                 mpt_prt(mpt, "ELS REPLY STATUS 0x%x for Function %x\n",
2819                     status, reply_frame->Function);
2820                 if (status == MPI_IOCSTATUS_INVALID_STATE) {
2821                         /*
2822                          * XXX: to get around shutdown issue
2823                          */
2824                         mpt->disabled = 1;
2825                         return (TRUE);
2826                 }
2827                 return (TRUE);
2828         }
2829
2830         /*
2831          * If the function of a link service response, we recycle the
2832          * response to be a refresh for a new link service request.
2833          *
2834          * The request pointer is bogus in this case and we have to fetch
2835          * it based upon the TransactionContext.
2836          */
2837         if (rp->Function == MPI_FUNCTION_FC_LINK_SRVC_RSP) {
2838                 /* Freddie Uncle Charlie Katie */
2839                 /* We don't get the IOINDEX as part of the Link Svc Rsp */
2840                 for (ioindex = 0; ioindex < mpt->els_cmds_allocated; ioindex++)
2841                         if (mpt->els_cmd_ptrs[ioindex] == req) {
2842                                 break;
2843                         }
2844
2845                 KASSERT(ioindex < mpt->els_cmds_allocated,
2846                     ("can't find my mommie!"));
2847
2848                 /* remove from active list as we're going to re-post it */
2849                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2850                 req->state &= ~REQ_STATE_QUEUED;
2851                 req->state |= REQ_STATE_DONE;
2852                 mpt_fc_post_els(mpt, req, ioindex);
2853                 return (TRUE);
2854         }
2855
2856         if (rp->Function == MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2857                 /* remove from active list as we're done */
2858                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2859                 req->state &= ~REQ_STATE_QUEUED;
2860                 req->state |= REQ_STATE_DONE;
2861                 if (req->state & REQ_STATE_TIMEDOUT) {
2862                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2863                             "Sync Primitive Send Completed After Timeout\n");
2864                         mpt_free_request(mpt, req);
2865                 } else if ((req->state & REQ_STATE_NEED_WAKEUP) == 0) {
2866                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2867                             "Async Primitive Send Complete\n");
2868                         mpt_free_request(mpt, req);
2869                 } else {
2870                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2871                             "Sync Primitive Send Complete- Waking Waiter\n");
2872                         wakeup(req);
2873                 }
2874                 return (TRUE);
2875         }
2876
2877         if (rp->Function != MPI_FUNCTION_FC_LINK_SRVC_BUF_POST) {
2878                 mpt_prt(mpt, "unexpected ELS_REPLY: Function 0x%x Flags %x "
2879                     "Length %d Message Flags %x\n", rp->Function, rp->Flags,
2880                     rp->MsgLength, rp->MsgFlags);
2881                 return (TRUE);
2882         }
2883
2884         if (rp->MsgLength <= 5) {
2885                 /*
2886                  * This is just a ack of an original ELS buffer post
2887                  */
2888                 mpt_lprt(mpt, MPT_PRT_DEBUG,
2889                     "RECV'd ACK of FC_ELS buf post %p:%u\n", req, req->serno);
2890                 return (TRUE);
2891         }
2892
2893
2894         rctl = (le32toh(rp->Rctl_Did) & MPI_FC_RCTL_MASK) >> MPI_FC_RCTL_SHIFT;
2895         type = (le32toh(rp->Type_Fctl) & MPI_FC_TYPE_MASK) >> MPI_FC_TYPE_SHIFT;
2896
2897         elsbuf = &((U32 *)req->req_vbuf)[MPT_RQSL(mpt)/sizeof (U32)];
2898         cmd = be32toh(elsbuf[0]) >> 24;
2899
2900         if (rp->Flags & MPI_LS_BUF_POST_REPLY_FLAG_NO_RSP_NEEDED) {
2901                 mpt_lprt(mpt, MPT_PRT_ALWAYS, "ELS_REPLY: response unneeded\n");
2902                 return (TRUE);
2903         }
2904
2905         ioindex = le32toh(rp->TransactionContext);
2906         req = mpt->els_cmd_ptrs[ioindex];
2907
2908         if (rctl == ELS && type == 1) {
2909                 switch (cmd) {
2910                 case PRLI:
2911                         /*
2912                          * Send back a PRLI ACC
2913                          */
2914                         mpt_prt(mpt, "PRLI from 0x%08x%08x\n",
2915                             le32toh(rp->Wwn.PortNameHigh),
2916                             le32toh(rp->Wwn.PortNameLow));
2917                         elsbuf[0] = htobe32(0x02100014);
2918                         elsbuf[1] |= htobe32(0x00000100);
2919                         elsbuf[4] = htobe32(0x00000002);
2920                         if (mpt->role & MPT_ROLE_TARGET)
2921                                 elsbuf[4] |= htobe32(0x00000010);
2922                         if (mpt->role & MPT_ROLE_INITIATOR)
2923                                 elsbuf[4] |= htobe32(0x00000020);
2924                         /* remove from active list as we're done */
2925                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2926                         req->state &= ~REQ_STATE_QUEUED;
2927                         req->state |= REQ_STATE_DONE;
2928                         mpt_fc_els_send_response(mpt, req, rp, 20);
2929                         do_refresh = FALSE;
2930                         break;
2931                 case PRLO:
2932                         memset(elsbuf, 0, 5 * (sizeof (U32)));
2933                         elsbuf[0] = htobe32(0x02100014);
2934                         elsbuf[1] = htobe32(0x08000100);
2935                         mpt_prt(mpt, "PRLO from 0x%08x%08x\n",
2936                             le32toh(rp->Wwn.PortNameHigh),
2937                             le32toh(rp->Wwn.PortNameLow));
2938                         /* remove from active list as we're done */
2939                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2940                         req->state &= ~REQ_STATE_QUEUED;
2941                         req->state |= REQ_STATE_DONE;
2942                         mpt_fc_els_send_response(mpt, req, rp, 20);
2943                         do_refresh = FALSE;
2944                         break;
2945                 default:
2946                         mpt_prt(mpt, "ELS TYPE 1 COMMAND: %x\n", cmd);
2947                         break;
2948                 }
2949         } else if (rctl == ABTS && type == 0) {
2950                 uint16_t rx_id = le16toh(rp->Rxid);
2951                 uint16_t ox_id = le16toh(rp->Oxid);
2952                 request_t *tgt_req = NULL;
2953
2954                 mpt_prt(mpt,
2955                     "ELS: ABTS OX_ID 0x%x RX_ID 0x%x from 0x%08x%08x\n",
2956                     ox_id, rx_id, le32toh(rp->Wwn.PortNameHigh),
2957                     le32toh(rp->Wwn.PortNameLow));
2958                 if (rx_id >= mpt->mpt_max_tgtcmds) {
2959                         mpt_prt(mpt, "Bad RX_ID 0x%x\n", rx_id);
2960                 } else if (mpt->tgt_cmd_ptrs == NULL) {
2961                         mpt_prt(mpt, "No TGT CMD PTRS\n");
2962                 } else {
2963                         tgt_req = mpt->tgt_cmd_ptrs[rx_id];
2964                 }
2965                 if (tgt_req) {
2966                         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, tgt_req);
2967                         union ccb *ccb;
2968                         uint32_t ct_id;
2969
2970                         /*
2971                          * Check to make sure we have the correct command
2972                          * The reply descriptor in the target state should
2973                          * should contain an IoIndex that should match the
2974                          * RX_ID.
2975                          *
2976                          * It'd be nice to have OX_ID to crosscheck with
2977                          * as well.
2978                          */
2979                         ct_id = GET_IO_INDEX(tgt->reply_desc);
2980
2981                         if (ct_id != rx_id) {
2982                                 mpt_lprt(mpt, MPT_PRT_ERROR, "ABORT Mismatch: "
2983                                     "RX_ID received=0x%x; RX_ID in cmd=0x%x\n",
2984                                     rx_id, ct_id);
2985                                 goto skip;
2986                         }
2987
2988                         ccb = tgt->ccb;
2989                         if (ccb) {
2990                                 mpt_prt(mpt,
2991                                     "CCB (%p): lun %u flags %x status %x\n",
2992                                     ccb, ccb->ccb_h.target_lun,
2993                                     ccb->ccb_h.flags, ccb->ccb_h.status);
2994                         }
2995                         mpt_prt(mpt, "target state 0x%x resid %u xfrd %u rpwrd "
2996                             "%x nxfers %x\n", tgt->state,
2997                             tgt->resid, tgt->bytes_xfered, tgt->reply_desc,
2998                             tgt->nxfers);
2999   skip:
3000                         if (mpt_abort_target_cmd(mpt, tgt_req)) {
3001                                 mpt_prt(mpt, "unable to start TargetAbort\n");
3002                         }
3003                 } else {
3004                         mpt_prt(mpt, "no back pointer for RX_ID 0x%x\n", rx_id);
3005                 }
3006                 memset(elsbuf, 0, 5 * (sizeof (U32)));
3007                 elsbuf[0] = htobe32(0);
3008                 elsbuf[1] = htobe32((ox_id << 16) | rx_id);
3009                 elsbuf[2] = htobe32(0x000ffff);
3010                 /*
3011                  * Dork with the reply frame so that the response to it
3012                  * will be correct.
3013                  */
3014                 rp->Rctl_Did += ((BA_ACC - ABTS) << MPI_FC_RCTL_SHIFT);
3015                 /* remove from active list as we're done */
3016                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3017                 req->state &= ~REQ_STATE_QUEUED;
3018                 req->state |= REQ_STATE_DONE;
3019                 mpt_fc_els_send_response(mpt, req, rp, 12);
3020                 do_refresh = FALSE;
3021         } else {
3022                 mpt_prt(mpt, "ELS: RCTL %x TYPE %x CMD %x\n", rctl, type, cmd);
3023         }
3024         if (do_refresh == TRUE) {
3025                 /* remove from active list as we're done */
3026                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3027                 req->state &= ~REQ_STATE_QUEUED;
3028                 req->state |= REQ_STATE_DONE;
3029                 mpt_fc_post_els(mpt, req, ioindex);
3030         }
3031         return (TRUE);
3032 }
3033
3034 /*
3035  * Clean up all SCSI Initiator personality state in response
3036  * to a controller reset.
3037  */
3038 static void
3039 mpt_cam_ioc_reset(struct mpt_softc *mpt, int type)
3040 {
3041         /*
3042          * The pending list is already run down by
3043          * the generic handler.  Perform the same
3044          * operation on the timed out request list.
3045          */
3046         mpt_complete_request_chain(mpt, &mpt->request_timeout_list,
3047                                    MPI_IOCSTATUS_INVALID_STATE);
3048
3049         /*
3050          * XXX: We need to repost ELS and Target Command Buffers?
3051          */
3052
3053         /*
3054          * Inform the XPT that a bus reset has occurred.
3055          */
3056         xpt_async(AC_BUS_RESET, mpt->path, NULL);
3057 }
3058
3059 /*
3060  * Parse additional completion information in the reply
3061  * frame for SCSI I/O requests.
3062  */
3063 static int
3064 mpt_scsi_reply_frame_handler(struct mpt_softc *mpt, request_t *req,
3065                              MSG_DEFAULT_REPLY *reply_frame)
3066 {
3067         union ccb *ccb;
3068         MSG_SCSI_IO_REPLY *scsi_io_reply;
3069         u_int ioc_status;
3070         u_int sstate;
3071
3072         MPT_DUMP_REPLY_FRAME(mpt, reply_frame);
3073         KASSERT(reply_frame->Function == MPI_FUNCTION_SCSI_IO_REQUEST
3074              || reply_frame->Function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH,
3075                 ("MPT SCSI I/O Handler called with incorrect reply type"));
3076         KASSERT((reply_frame->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY) == 0,
3077                 ("MPT SCSI I/O Handler called with continuation reply"));
3078
3079         scsi_io_reply = (MSG_SCSI_IO_REPLY *)reply_frame;
3080         ioc_status = le16toh(scsi_io_reply->IOCStatus);
3081         ioc_status &= MPI_IOCSTATUS_MASK;
3082         sstate = scsi_io_reply->SCSIState;
3083
3084         ccb = req->ccb;
3085         ccb->csio.resid =
3086             ccb->csio.dxfer_len - le32toh(scsi_io_reply->TransferCount);
3087
3088         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_VALID) != 0
3089          && (ccb->ccb_h.flags & (CAM_SENSE_PHYS | CAM_SENSE_PTR)) == 0) {
3090                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
3091                 ccb->csio.sense_resid =
3092                     ccb->csio.sense_len - le32toh(scsi_io_reply->SenseCount);
3093                 bcopy(req->sense_vbuf, &ccb->csio.sense_data,
3094                     min(ccb->csio.sense_len,
3095                     le32toh(scsi_io_reply->SenseCount)));
3096         }
3097
3098         if ((sstate & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) != 0) {
3099                 /*
3100                  * Tag messages rejected, but non-tagged retry
3101                  * was successful.
3102 XXXX
3103                 mpt_set_tags(mpt, devinfo, MPT_QUEUE_NONE);
3104                  */
3105         }
3106
3107         switch(ioc_status) {
3108         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3109                 /*
3110                  * XXX
3111                  * Linux driver indicates that a zero
3112                  * transfer length with this error code
3113                  * indicates a CRC error.
3114                  *
3115                  * No need to swap the bytes for checking
3116                  * against zero.
3117                  */
3118                 if (scsi_io_reply->TransferCount == 0) {
3119                         mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3120                         break;
3121                 }
3122                 /* FALLTHROUGH */
3123         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
3124         case MPI_IOCSTATUS_SUCCESS:
3125         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:
3126                 if ((sstate & MPI_SCSI_STATE_NO_SCSI_STATUS) != 0) {
3127                         /*
3128                          * Status was never returned for this transaction.
3129                          */
3130                         mpt_set_ccb_status(ccb, CAM_UNEXP_BUSFREE);
3131                 } else if (scsi_io_reply->SCSIStatus != SCSI_STATUS_OK) {
3132                         ccb->csio.scsi_status = scsi_io_reply->SCSIStatus;
3133                         mpt_set_ccb_status(ccb, CAM_SCSI_STATUS_ERROR);
3134                         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_FAILED) != 0)
3135                                 mpt_set_ccb_status(ccb, CAM_AUTOSENSE_FAIL);
3136                 } else if ((sstate & MPI_SCSI_STATE_RESPONSE_INFO_VALID) != 0) {
3137
3138                         /* XXX Handle SPI-Packet and FCP-2 response info. */
3139                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3140                 } else
3141                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3142                 break;
3143         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
3144                 mpt_set_ccb_status(ccb, CAM_DATA_RUN_ERR);
3145                 break;
3146         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
3147                 mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3148                 break;
3149         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3150                 /*
3151                  * Since selection timeouts and "device really not
3152                  * there" are grouped into this error code, report
3153                  * selection timeout.  Selection timeouts are
3154                  * typically retried before giving up on the device
3155                  * whereas "device not there" errors are considered
3156                  * unretryable.
3157                  */
3158                 mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3159                 break;
3160         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3161                 mpt_set_ccb_status(ccb, CAM_SEQUENCE_FAIL);
3162                 break;
3163         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
3164                 mpt_set_ccb_status(ccb, CAM_PATH_INVALID);
3165                 break;
3166         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
3167                 mpt_set_ccb_status(ccb, CAM_TID_INVALID);
3168                 break;
3169         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3170                 ccb->ccb_h.status = CAM_UA_TERMIO;
3171                 break;
3172         case MPI_IOCSTATUS_INVALID_STATE:
3173                 /*
3174                  * The IOC has been reset.  Emulate a bus reset.
3175                  */
3176                 /* FALLTHROUGH */
3177         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
3178                 ccb->ccb_h.status = CAM_SCSI_BUS_RESET;
3179                 break;
3180         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
3181         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
3182                 /*
3183                  * Don't clobber any timeout status that has
3184                  * already been set for this transaction.  We
3185                  * want the SCSI layer to be able to differentiate
3186                  * between the command we aborted due to timeout
3187                  * and any innocent bystanders.
3188                  */
3189                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG)
3190                         break;
3191                 mpt_set_ccb_status(ccb, CAM_REQ_TERMIO);
3192                 break;
3193
3194         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
3195                 mpt_set_ccb_status(ccb, CAM_RESRC_UNAVAIL);
3196                 break;
3197         case MPI_IOCSTATUS_BUSY:
3198                 mpt_set_ccb_status(ccb, CAM_BUSY);
3199                 break;
3200         case MPI_IOCSTATUS_INVALID_FUNCTION:
3201         case MPI_IOCSTATUS_INVALID_SGL:
3202         case MPI_IOCSTATUS_INTERNAL_ERROR:
3203         case MPI_IOCSTATUS_INVALID_FIELD:
3204         default:
3205                 /* XXX
3206                  * Some of the above may need to kick
3207                  * of a recovery action!!!!
3208                  */
3209                 ccb->ccb_h.status = CAM_UNREC_HBA_ERROR;
3210                 break;
3211         }
3212
3213         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3214                 mpt_freeze_ccb(ccb);
3215         }
3216
3217         return (TRUE);
3218 }
3219
3220 static void
3221 mpt_action(struct cam_sim *sim, union ccb *ccb)
3222 {
3223         struct mpt_softc *mpt;
3224         struct ccb_trans_settings *cts;
3225         target_id_t tgt;
3226         lun_id_t lun;
3227         int raid_passthru;
3228
3229         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("mpt_action\n"));
3230
3231         mpt = (struct mpt_softc *)cam_sim_softc(sim);
3232         raid_passthru = (sim == mpt->phydisk_sim);
3233         MPT_LOCK_ASSERT(mpt);
3234
3235         tgt = ccb->ccb_h.target_id;
3236         lun = ccb->ccb_h.target_lun;
3237         if (raid_passthru &&
3238             ccb->ccb_h.func_code != XPT_PATH_INQ &&
3239             ccb->ccb_h.func_code != XPT_RESET_BUS &&
3240             ccb->ccb_h.func_code != XPT_RESET_DEV) {
3241                 CAMLOCK_2_MPTLOCK(mpt);
3242                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
3243                         MPTLOCK_2_CAMLOCK(mpt);
3244                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3245                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
3246                         xpt_done(ccb);
3247                         return;
3248                 }
3249                 MPTLOCK_2_CAMLOCK(mpt);
3250         }
3251         ccb->ccb_h.ccb_mpt_ptr = mpt;
3252
3253         switch (ccb->ccb_h.func_code) {
3254         case XPT_SCSI_IO:       /* Execute the requested I/O operation */
3255                 /*
3256                  * Do a couple of preliminary checks...
3257                  */
3258                 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
3259                         if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
3260                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3261                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3262                                 break;
3263                         }
3264                 }
3265                 /* Max supported CDB length is 16 bytes */
3266                 /* XXX Unless we implement the new 32byte message type */
3267                 if (ccb->csio.cdb_len >
3268                     sizeof (((PTR_MSG_SCSI_IO_REQUEST)0)->CDB)) {
3269                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3270                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3271                         break;
3272                 }
3273 #ifdef  MPT_TEST_MULTIPATH
3274                 if (mpt->failure_id == ccb->ccb_h.target_id) {
3275                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3276                         mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3277                         break;
3278                 }
3279 #endif
3280                 ccb->csio.scsi_status = SCSI_STATUS_OK;
3281                 mpt_start(sim, ccb);
3282                 return;
3283
3284         case XPT_RESET_BUS:
3285                 if (raid_passthru) {
3286                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3287                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3288                         break;
3289                 }
3290         case XPT_RESET_DEV:
3291                 if (ccb->ccb_h.func_code == XPT_RESET_BUS) {
3292                         if (bootverbose) {
3293                                 xpt_print(ccb->ccb_h.path, "reset bus\n");
3294                         }
3295                 } else {
3296                         xpt_print(ccb->ccb_h.path, "reset device\n");
3297                 }
3298                 CAMLOCK_2_MPTLOCK(mpt);
3299                 (void) mpt_bus_reset(mpt, tgt, lun, FALSE);
3300                 MPTLOCK_2_CAMLOCK(mpt);
3301
3302                 /*
3303                  * mpt_bus_reset is always successful in that it
3304                  * will fall back to a hard reset should a bus
3305                  * reset attempt fail.
3306                  */
3307                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3308                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3309                 break;
3310
3311         case XPT_ABORT:
3312         {
3313                 union ccb *accb = ccb->cab.abort_ccb;
3314                 CAMLOCK_2_MPTLOCK(mpt);
3315                 switch (accb->ccb_h.func_code) {
3316                 case XPT_ACCEPT_TARGET_IO:
3317                 case XPT_IMMED_NOTIFY:
3318                         ccb->ccb_h.status = mpt_abort_target_ccb(mpt, ccb);
3319                         break;
3320                 case XPT_CONT_TARGET_IO:
3321                         mpt_prt(mpt, "cannot abort active CTIOs yet\n");
3322                         ccb->ccb_h.status = CAM_UA_ABORT;
3323                         break;
3324                 case XPT_SCSI_IO:
3325                         ccb->ccb_h.status = CAM_UA_ABORT;
3326                         break;
3327                 default:
3328                         ccb->ccb_h.status = CAM_REQ_INVALID;
3329                         break;
3330                 }
3331                 MPTLOCK_2_CAMLOCK(mpt);
3332                 break;
3333         }
3334
3335 #ifdef  CAM_NEW_TRAN_CODE
3336 #define IS_CURRENT_SETTINGS(c)  ((c)->type == CTS_TYPE_CURRENT_SETTINGS)
3337 #else
3338 #define IS_CURRENT_SETTINGS(c)  ((c)->flags & CCB_TRANS_CURRENT_SETTINGS)
3339 #endif
3340 #define DP_DISC_ENABLE  0x1
3341 #define DP_DISC_DISABL  0x2
3342 #define DP_DISC         (DP_DISC_ENABLE|DP_DISC_DISABL)
3343
3344 #define DP_TQING_ENABLE 0x4
3345 #define DP_TQING_DISABL 0x8
3346 #define DP_TQING        (DP_TQING_ENABLE|DP_TQING_DISABL)
3347
3348 #define DP_WIDE         0x10
3349 #define DP_NARROW       0x20
3350 #define DP_WIDTH        (DP_WIDE|DP_NARROW)
3351
3352 #define DP_SYNC         0x40
3353
3354         case XPT_SET_TRAN_SETTINGS:     /* Nexus Settings */
3355         {
3356 #ifdef  CAM_NEW_TRAN_CODE
3357                 struct ccb_trans_settings_scsi *scsi;
3358                 struct ccb_trans_settings_spi *spi;
3359 #endif
3360                 uint8_t dval;
3361                 u_int period;
3362                 u_int offset;
3363                 int i, j;
3364
3365                 cts = &ccb->cts;
3366
3367                 if (mpt->is_fc || mpt->is_sas) {
3368                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3369                         break;
3370                 }
3371
3372 #ifdef  CAM_NEW_TRAN_CODE
3373                 scsi = &cts->proto_specific.scsi;
3374                 spi = &cts->xport_specific.spi;
3375
3376                 /*
3377                  * We can be called just to valid transport and proto versions
3378                  */
3379                 if (scsi->valid == 0 && spi->valid == 0) {
3380                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3381                         break;
3382                 }
3383 #endif
3384
3385                 /*
3386                  * Skip attempting settings on RAID volume disks.
3387                  * Other devices on the bus get the normal treatment.
3388                  */
3389                 if (mpt->phydisk_sim && raid_passthru == 0 &&
3390                     mpt_is_raid_volume(mpt, tgt) != 0) {
3391                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3392                             "no transfer settings for RAID vols\n");
3393                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3394                         break;
3395                 }
3396
3397                 i = mpt->mpt_port_page2.PortSettings &
3398                     MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
3399                 j = mpt->mpt_port_page2.PortFlags &
3400                     MPI_SCSIPORTPAGE2_PORT_FLAGS_DV_MASK;
3401                 if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS &&
3402                     j == MPI_SCSIPORTPAGE2_PORT_FLAGS_OFF_DV) {
3403                         mpt_lprt(mpt, MPT_PRT_ALWAYS,
3404                             "honoring BIOS transfer negotiations\n");
3405                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3406                         break;
3407                 }
3408
3409                 dval = 0;
3410                 period = 0;
3411                 offset = 0;
3412
3413 #ifndef CAM_NEW_TRAN_CODE
3414                 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
3415                         dval |= (cts->flags & CCB_TRANS_DISC_ENB) ?
3416                             DP_DISC_ENABLE : DP_DISC_DISABL;
3417                 }
3418
3419                 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
3420                         dval |= (cts->flags & CCB_TRANS_TAG_ENB) ?
3421                             DP_TQING_ENABLE : DP_TQING_DISABL;
3422                 }
3423
3424                 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
3425                         dval |= cts->bus_width ? DP_WIDE : DP_NARROW;
3426                 }
3427
3428                 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) &&
3429                     (cts->valid & CCB_TRANS_SYNC_OFFSET_VALID)) {
3430                         dval |= DP_SYNC;
3431                         period = cts->sync_period;
3432                         offset = cts->sync_offset;
3433                 }
3434 #else
3435                 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
3436                         dval |= ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) ?
3437                             DP_DISC_ENABLE : DP_DISC_DISABL;
3438                 }
3439
3440                 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
3441                         dval |= ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) ?
3442                             DP_TQING_ENABLE : DP_TQING_DISABL;
3443                 }
3444
3445                 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
3446                         dval |= (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT) ?
3447                             DP_WIDE : DP_NARROW;
3448                 }
3449
3450                 if (spi->valid & CTS_SPI_VALID_SYNC_OFFSET) {
3451                         dval |= DP_SYNC;
3452                         offset = spi->sync_offset;
3453                 } else {
3454                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3455                             &mpt->mpt_dev_page1[tgt];
3456                         offset = ptr->RequestedParameters;
3457                         offset &= MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3458                         offset >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3459                 }
3460                 if (spi->valid & CTS_SPI_VALID_SYNC_RATE) {
3461                         dval |= DP_SYNC;
3462                         period = spi->sync_period;
3463                 } else {
3464                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3465                             &mpt->mpt_dev_page1[tgt];
3466                         period = ptr->RequestedParameters;
3467                         period &= MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3468                         period >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3469                 }
3470 #endif
3471                 CAMLOCK_2_MPTLOCK(mpt);
3472                 if (dval & DP_DISC_ENABLE) {
3473                         mpt->mpt_disc_enable |= (1 << tgt);
3474                 } else if (dval & DP_DISC_DISABL) {
3475                         mpt->mpt_disc_enable &= ~(1 << tgt);
3476                 }
3477                 if (dval & DP_TQING_ENABLE) {
3478                         mpt->mpt_tag_enable |= (1 << tgt);
3479                 } else if (dval & DP_TQING_DISABL) {
3480                         mpt->mpt_tag_enable &= ~(1 << tgt);
3481                 }
3482                 if (dval & DP_WIDTH) {
3483                         mpt_setwidth(mpt, tgt, 1);
3484                 }
3485                 if (dval & DP_SYNC) {
3486                         mpt_setsync(mpt, tgt, period, offset);
3487                 }
3488                 if (dval == 0) {
3489                         MPTLOCK_2_CAMLOCK(mpt);
3490                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3491                         break;
3492                 }
3493                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3494                     "set [%d]: 0x%x period 0x%x offset %d\n",
3495                     tgt, dval, period, offset);
3496                 if (mpt_update_spi_config(mpt, tgt)) {
3497                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3498                 } else {
3499                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3500                 }
3501                 MPTLOCK_2_CAMLOCK(mpt);
3502                 break;
3503         }
3504         case XPT_GET_TRAN_SETTINGS:
3505         {
3506 #ifdef  CAM_NEW_TRAN_CODE
3507                 struct ccb_trans_settings_scsi *scsi;
3508                 cts = &ccb->cts;
3509                 cts->protocol = PROTO_SCSI;
3510                 if (mpt->is_fc) {
3511                         struct ccb_trans_settings_fc *fc =
3512                             &cts->xport_specific.fc;
3513                         cts->protocol_version = SCSI_REV_SPC;
3514                         cts->transport = XPORT_FC;
3515                         cts->transport_version = 0;
3516                         fc->valid = CTS_FC_VALID_SPEED;
3517                         fc->bitrate = 100000;
3518                 } else if (mpt->is_sas) {
3519                         struct ccb_trans_settings_sas *sas =
3520                             &cts->xport_specific.sas;
3521                         cts->protocol_version = SCSI_REV_SPC2;
3522                         cts->transport = XPORT_SAS;
3523                         cts->transport_version = 0;
3524                         sas->valid = CTS_SAS_VALID_SPEED;
3525                         sas->bitrate = 300000;
3526                 } else {
3527                         cts->protocol_version = SCSI_REV_2;
3528                         cts->transport = XPORT_SPI;
3529                         cts->transport_version = 2;
3530                         if (mpt_get_spi_settings(mpt, cts) != 0) {
3531                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3532                                 break;
3533                         }
3534                 }
3535                 scsi = &cts->proto_specific.scsi;
3536                 scsi->valid = CTS_SCSI_VALID_TQ;
3537                 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3538 #else
3539                 cts = &ccb->cts;
3540                 if (mpt->is_fc) {
3541                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3542                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3543                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3544                 } else if (mpt->is_sas) {
3545                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3546                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3547                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3548                 } else if (mpt_get_spi_settings(mpt, cts) != 0) {
3549                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3550                         break;
3551                 }
3552 #endif
3553                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3554                 break;
3555         }
3556         case XPT_CALC_GEOMETRY:
3557         {
3558                 struct ccb_calc_geometry *ccg;
3559
3560                 ccg = &ccb->ccg;
3561                 if (ccg->block_size == 0) {
3562                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3563                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3564                         break;
3565                 }
3566                 mpt_calc_geometry(ccg, /*extended*/1);
3567                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
3568                 break;
3569         }
3570         case XPT_PATH_INQ:              /* Path routing inquiry */
3571         {
3572                 struct ccb_pathinq *cpi = &ccb->cpi;
3573
3574                 cpi->version_num = 1;
3575                 cpi->target_sprt = 0;
3576                 cpi->hba_eng_cnt = 0;
3577                 cpi->max_target = mpt->port_facts[0].MaxDevices - 1;
3578 #if 0 /* XXX swildner */
3579                 cpi->maxio = (mpt->max_cam_seg_cnt - 1) * PAGE_SIZE;
3580 #endif
3581                 /*
3582                  * FC cards report MAX_DEVICES of 512, but
3583                  * the MSG_SCSI_IO_REQUEST target id field
3584                  * is only 8 bits. Until we fix the driver
3585                  * to support 'channels' for bus overflow,
3586                  * just limit it.
3587                  */
3588                 if (cpi->max_target > 255) {
3589                         cpi->max_target = 255;
3590                 }
3591
3592                 /*
3593                  * VMware ESX reports > 16 devices and then dies when we probe.
3594                  */
3595                 if (mpt->is_spi && cpi->max_target > 15) {
3596                         cpi->max_target = 15;
3597                 }
3598                 if (mpt->is_spi)
3599                         cpi->max_lun = 7;
3600                 else
3601                         cpi->max_lun = MPT_MAX_LUNS;
3602                 cpi->initiator_id = mpt->mpt_ini_id;
3603                 cpi->bus_id = cam_sim_bus(sim);
3604
3605                 /*
3606                  * The base speed is the speed of the underlying connection.
3607                  */
3608 #ifdef  CAM_NEW_TRAN_CODE
3609                 cpi->protocol = PROTO_SCSI;
3610                 if (mpt->is_fc) {
3611                         cpi->hba_misc = PIM_NOBUSRESET;
3612                         cpi->base_transfer_speed = 100000;
3613                         cpi->hba_inquiry = PI_TAG_ABLE;
3614                         cpi->transport = XPORT_FC;
3615                         cpi->transport_version = 0;
3616                         cpi->protocol_version = SCSI_REV_SPC;
3617                 } else if (mpt->is_sas) {
3618                         cpi->hba_misc = PIM_NOBUSRESET;
3619                         cpi->base_transfer_speed = 300000;
3620                         cpi->hba_inquiry = PI_TAG_ABLE;
3621                         cpi->transport = XPORT_SAS;
3622                         cpi->transport_version = 0;
3623                         cpi->protocol_version = SCSI_REV_SPC2;
3624                 } else {
3625                         cpi->hba_misc = PIM_SEQSCAN;
3626                         cpi->base_transfer_speed = 3300;
3627                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3628                         cpi->transport = XPORT_SPI;
3629                         cpi->transport_version = 2;
3630                         cpi->protocol_version = SCSI_REV_2;
3631                 }
3632 #else
3633                 if (mpt->is_fc) {
3634                         cpi->hba_misc = PIM_NOBUSRESET;
3635                         cpi->base_transfer_speed = 100000;
3636                         cpi->hba_inquiry = PI_TAG_ABLE;
3637                 } else if (mpt->is_sas) {
3638                         cpi->hba_misc = PIM_NOBUSRESET;
3639                         cpi->base_transfer_speed = 300000;
3640                         cpi->hba_inquiry = PI_TAG_ABLE;
3641                 } else {
3642                         cpi->hba_misc = PIM_SEQSCAN;
3643                         cpi->base_transfer_speed = 3300;
3644                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3645                 }
3646 #endif
3647
3648                 /*
3649                  * We give our fake RAID passhtru bus a width that is MaxVolumes
3650                  * wide and restrict it to one lun.
3651                  */
3652                 if (raid_passthru) {
3653                         cpi->max_target = mpt->ioc_page2->MaxPhysDisks - 1;
3654                         cpi->initiator_id = cpi->max_target + 1;
3655                         cpi->max_lun = 0;
3656                 }
3657
3658                 if ((mpt->role & MPT_ROLE_INITIATOR) == 0) {
3659                         cpi->hba_misc |= PIM_NOINITIATOR;
3660                 }
3661                 if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
3662                         cpi->target_sprt =
3663                             PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
3664                 } else {
3665                         cpi->target_sprt = 0;
3666                 }
3667                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3668                 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
3669                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3670                 cpi->unit_number = cam_sim_unit(sim);
3671                 cpi->ccb_h.status = CAM_REQ_CMP;
3672                 break;
3673         }
3674         case XPT_EN_LUN:                /* Enable LUN as a target */
3675         {
3676                 int result;
3677
3678                 CAMLOCK_2_MPTLOCK(mpt);
3679                 if (ccb->cel.enable)
3680                         result = mpt_enable_lun(mpt,
3681                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3682                 else
3683                         result = mpt_disable_lun(mpt,
3684                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3685                 MPTLOCK_2_CAMLOCK(mpt);
3686                 if (result == 0) {
3687                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3688                 } else {
3689                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3690                 }
3691                 break;
3692         }
3693         case XPT_NOTIFY_ACK:            /* recycle notify ack */
3694         case XPT_IMMED_NOTIFY:          /* Add Immediate Notify Resource */
3695         case XPT_ACCEPT_TARGET_IO:      /* Add Accept Target IO Resource */
3696         {
3697                 tgt_resource_t *trtp;
3698                 lun_id_t lun = ccb->ccb_h.target_lun;
3699                 ccb->ccb_h.sim_priv.entries[0].field = 0;
3700                 ccb->ccb_h.sim_priv.entries[1].ptr = mpt;
3701                 ccb->ccb_h.flags = 0;
3702
3703                 if (lun == CAM_LUN_WILDCARD) {
3704                         if (ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
3705                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3706                                 break;
3707                         }
3708                         trtp = &mpt->trt_wildcard;
3709                 } else if (lun >= MPT_MAX_LUNS) {
3710                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3711                         break;
3712                 } else {
3713                         trtp = &mpt->trt[lun];
3714                 }
3715                 CAMLOCK_2_MPTLOCK(mpt);
3716                 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
3717                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3718                             "Put FREE ATIO %p lun %d\n", ccb, lun);
3719                         STAILQ_INSERT_TAIL(&trtp->atios, &ccb->ccb_h,
3720                             sim_links.stqe);
3721                 } else if (ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
3722                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3723                             "Put FREE INOT lun %d\n", lun);
3724                         STAILQ_INSERT_TAIL(&trtp->inots, &ccb->ccb_h,
3725                             sim_links.stqe);
3726                 } else {
3727                         mpt_lprt(mpt, MPT_PRT_ALWAYS, "Got Notify ACK\n");
3728                 }
3729                 mpt_set_ccb_status(ccb, CAM_REQ_INPROG);
3730                 MPTLOCK_2_CAMLOCK(mpt);
3731                 return;
3732         }
3733         case XPT_CONT_TARGET_IO:
3734                 CAMLOCK_2_MPTLOCK(mpt);
3735                 mpt_target_start_io(mpt, ccb);
3736                 MPTLOCK_2_CAMLOCK(mpt);
3737                 return;
3738
3739         default:
3740                 ccb->ccb_h.status = CAM_REQ_INVALID;
3741                 break;
3742         }
3743         xpt_done(ccb);
3744 }
3745
3746 static int
3747 mpt_get_spi_settings(struct mpt_softc *mpt, struct ccb_trans_settings *cts)
3748 {
3749 #ifdef  CAM_NEW_TRAN_CODE
3750         struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3751         struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3752 #endif
3753         target_id_t tgt;
3754         uint32_t dval, pval, oval;
3755         int rv;
3756
3757         if (IS_CURRENT_SETTINGS(cts) == 0) {
3758                 tgt = cts->ccb_h.target_id;
3759         } else if (xpt_path_sim(cts->ccb_h.path) == mpt->phydisk_sim) {
3760                 if (mpt_map_physdisk(mpt, (union ccb *)cts, &tgt)) {
3761                         return (-1);
3762                 }
3763         } else {
3764                 tgt = cts->ccb_h.target_id;
3765         }
3766
3767         /*
3768          * We aren't looking at Port Page 2 BIOS settings here-
3769          * sometimes these have been known to be bogus XXX.
3770          *
3771          * For user settings, we pick the max from port page 0
3772          *
3773          * For current settings we read the current settings out from
3774          * device page 0 for that target.
3775          */
3776         if (IS_CURRENT_SETTINGS(cts)) {
3777                 CONFIG_PAGE_SCSI_DEVICE_0 tmp;
3778                 dval = 0;
3779
3780                 CAMLOCK_2_MPTLOCK(mpt);
3781                 tmp = mpt->mpt_dev_page0[tgt];
3782                 rv = mpt_read_cur_cfg_page(mpt, tgt, &tmp.Header,
3783                     sizeof(tmp), FALSE, 5000);
3784                 if (rv) {
3785                         MPTLOCK_2_CAMLOCK(mpt);
3786                         mpt_prt(mpt, "can't get tgt %d config page 0\n", tgt);
3787                         return (rv);
3788                 }
3789                 mpt2host_config_page_scsi_device_0(&tmp);
3790
3791                 MPTLOCK_2_CAMLOCK(mpt);
3792                 mpt_lprt(mpt, MPT_PRT_DEBUG,
3793                     "mpt_get_spi_settings[%d]: current NP %x Info %x\n", tgt,
3794                     tmp.NegotiatedParameters, tmp.Information);
3795                 dval |= (tmp.NegotiatedParameters & MPI_SCSIDEVPAGE0_NP_WIDE) ?
3796                     DP_WIDE : DP_NARROW;
3797                 dval |= (mpt->mpt_disc_enable & (1 << tgt)) ?
3798                     DP_DISC_ENABLE : DP_DISC_DISABL;
3799                 dval |= (mpt->mpt_tag_enable & (1 << tgt)) ?
3800                     DP_TQING_ENABLE : DP_TQING_DISABL;
3801                 oval = tmp.NegotiatedParameters;
3802                 oval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK;
3803                 oval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
3804                 pval = tmp.NegotiatedParameters;
3805                 pval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK;
3806                 pval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
3807                 mpt->mpt_dev_page0[tgt] = tmp;
3808         } else {
3809                 dval = DP_WIDE|DP_DISC_ENABLE|DP_TQING_ENABLE|DP_SYNC;
3810                 oval = mpt->mpt_port_page0.Capabilities;
3811                 oval = MPI_SCSIPORTPAGE0_CAP_GET_MAX_SYNC_OFFSET(oval);
3812                 pval = mpt->mpt_port_page0.Capabilities;
3813                 pval = MPI_SCSIPORTPAGE0_CAP_GET_MIN_SYNC_PERIOD(pval);
3814         }
3815
3816 #ifndef CAM_NEW_TRAN_CODE
3817         cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
3818         cts->valid = 0;
3819         cts->sync_period = pval;
3820         cts->sync_offset = oval;
3821         cts->valid |= CCB_TRANS_SYNC_RATE_VALID;
3822         cts->valid |= CCB_TRANS_SYNC_OFFSET_VALID;
3823         cts->valid |= CCB_TRANS_BUS_WIDTH_VALID;
3824         if (dval & DP_WIDE) {
3825                 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3826         } else {
3827                 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3828         }
3829         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3830                 cts->valid |= CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3831                 if (dval & DP_DISC_ENABLE) {
3832                         cts->flags |= CCB_TRANS_DISC_ENB;
3833                 }
3834                 if (dval & DP_TQING_ENABLE) {
3835                         cts->flags |= CCB_TRANS_TAG_ENB;
3836                 }
3837         }
3838 #else
3839         spi->valid = 0;
3840         scsi->valid = 0;
3841         spi->flags = 0;
3842         scsi->flags = 0;
3843         spi->sync_offset = oval;
3844         spi->sync_period = pval;
3845         spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3846         spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3847         spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
3848         if (dval & DP_WIDE) {
3849                 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3850         } else {
3851                 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3852         }
3853         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3854                 scsi->valid = CTS_SCSI_VALID_TQ;
3855                 if (dval & DP_TQING_ENABLE) {
3856                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3857                 }
3858                 spi->valid |= CTS_SPI_VALID_DISC;
3859                 if (dval & DP_DISC_ENABLE) {
3860                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3861                 }
3862         }
3863 #endif
3864         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3865             "mpt_get_spi_settings[%d]: %s flags 0x%x per 0x%x off=%d\n", tgt,
3866             IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM ", dval, pval, oval);
3867         return (0);
3868 }
3869
3870 static void
3871 mpt_setwidth(struct mpt_softc *mpt, int tgt, int onoff)
3872 {
3873         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3874
3875         ptr = &mpt->mpt_dev_page1[tgt];
3876         if (onoff) {
3877                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_WIDE;
3878         } else {
3879                 ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_WIDE;
3880         }
3881 }
3882
3883 static void
3884 mpt_setsync(struct mpt_softc *mpt, int tgt, int period, int offset)
3885 {
3886         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3887
3888         ptr = &mpt->mpt_dev_page1[tgt];
3889         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3890         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3891         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_DT;
3892         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_QAS;
3893         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_IU;
3894         if (period == 0) {
3895                 return;
3896         }
3897         ptr->RequestedParameters |=
3898             period << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3899         ptr->RequestedParameters |=
3900             offset << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3901         if (period < 0xa) {
3902                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_DT;
3903         }
3904         if (period < 0x9) {
3905                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_QAS;
3906                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_IU;
3907         }
3908 }
3909
3910 static int
3911 mpt_update_spi_config(struct mpt_softc *mpt, int tgt)
3912 {
3913         CONFIG_PAGE_SCSI_DEVICE_1 tmp;
3914         int rv;
3915
3916         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3917             "mpt_update_spi_config[%d].page1: Requested Params 0x%08x\n",
3918             tgt, mpt->mpt_dev_page1[tgt].RequestedParameters);
3919         tmp = mpt->mpt_dev_page1[tgt];
3920         host2mpt_config_page_scsi_device_1(&tmp);
3921         rv = mpt_write_cur_cfg_page(mpt, tgt,
3922             &tmp.Header, sizeof(tmp), FALSE, 5000);
3923         if (rv) {
3924                 mpt_prt(mpt, "mpt_update_spi_config: write cur page failed\n");
3925                 return (-1);
3926         }
3927         return (0);
3928 }
3929
3930 static void
3931 mpt_calc_geometry(struct ccb_calc_geometry *ccg, int extended)
3932 {
3933         cam_calc_geometry(ccg, extended);
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 }
3953
3954 /****************************** Timeout Recovery ******************************/
3955 static int
3956 mpt_spawn_recovery_thread(struct mpt_softc *mpt)
3957 {
3958         int error;
3959
3960         error = mpt_kthread_create(mpt_recovery_thread, mpt,
3961             &mpt->recovery_thread, /*flags*/0,
3962             /*altstack*/0, "mpt_recovery%d", mpt->unit);
3963         return (error);
3964 }
3965
3966 static void
3967 mpt_terminate_recovery_thread(struct mpt_softc *mpt)
3968 {
3969         if (mpt->recovery_thread == NULL) {
3970                 return;
3971         }
3972         mpt->shutdwn_recovery = 1;
3973         wakeup(mpt);
3974         /*
3975          * Sleep on a slightly different location
3976          * for this interlock just for added safety.
3977          */
3978         mpt_sleep(mpt, &mpt->recovery_thread, 0, "thtrm", 0);
3979 }
3980
3981 static void
3982 mpt_recovery_thread(void *arg)
3983 {
3984         struct mpt_softc *mpt;
3985
3986         mpt = (struct mpt_softc *)arg;
3987         MPT_LOCK(mpt);
3988         for (;;) {
3989                 if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
3990                         if (mpt->shutdwn_recovery == 0) {
3991                                 mpt_sleep(mpt, mpt, 0, "idle", 0);
3992                         }
3993                 }
3994                 if (mpt->shutdwn_recovery != 0) {
3995                         break;
3996                 }
3997                 mpt_recover_commands(mpt);
3998         }
3999         mpt->recovery_thread = NULL;
4000         wakeup(&mpt->recovery_thread);
4001         MPT_UNLOCK(mpt);
4002         mpt_kthread_exit(0);
4003 }
4004
4005 static int
4006 mpt_scsi_send_tmf(struct mpt_softc *mpt, u_int type, u_int flags,
4007     u_int channel, u_int target, u_int lun, u_int abort_ctx, int sleep_ok)
4008 {
4009         MSG_SCSI_TASK_MGMT *tmf_req;
4010         int                 error;
4011
4012         /*
4013          * Wait for any current TMF request to complete.
4014          * We're only allowed to issue one TMF at a time.
4015          */
4016         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_FREE, REQ_STATE_FREE,
4017             sleep_ok, MPT_TMF_MAX_TIMEOUT);
4018         if (error != 0) {
4019                 mpt_reset(mpt, TRUE);
4020                 return (ETIMEDOUT);
4021         }
4022
4023         mpt_assign_serno(mpt, mpt->tmf_req);
4024         mpt->tmf_req->state = REQ_STATE_ALLOCATED|REQ_STATE_QUEUED;
4025
4026         tmf_req = (MSG_SCSI_TASK_MGMT *)mpt->tmf_req->req_vbuf;
4027         memset(tmf_req, 0, sizeof(*tmf_req));
4028         tmf_req->TargetID = target;
4029         tmf_req->Bus = channel;
4030         tmf_req->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
4031         tmf_req->TaskType = type;
4032         tmf_req->MsgFlags = flags;
4033         tmf_req->MsgContext =
4034             htole32(mpt->tmf_req->index | scsi_tmf_handler_id);
4035         if (lun > MPT_MAX_LUNS) {
4036                 tmf_req->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4037                 tmf_req->LUN[1] = lun & 0xff;
4038         } else {
4039                 tmf_req->LUN[1] = lun;
4040         }
4041         tmf_req->TaskMsgContext = abort_ctx;
4042
4043         mpt_lprt(mpt, MPT_PRT_DEBUG,
4044             "Issuing TMF %p:%u with MsgContext of 0x%x\n", mpt->tmf_req,
4045             mpt->tmf_req->serno, tmf_req->MsgContext);
4046         if (mpt->verbose > MPT_PRT_DEBUG) {
4047                 mpt_print_request(tmf_req);
4048         }
4049
4050         KASSERT(mpt_req_on_pending_list(mpt, mpt->tmf_req) == 0,
4051             ("mpt_scsi_send_tmf: tmf_req already on pending list"));
4052         TAILQ_INSERT_HEAD(&mpt->request_pending_list, mpt->tmf_req, links);
4053         error = mpt_send_handshake_cmd(mpt, sizeof(*tmf_req), tmf_req);
4054         if (error != MPT_OK) {
4055                 TAILQ_REMOVE(&mpt->request_pending_list, mpt->tmf_req, links);
4056                 mpt->tmf_req->state = REQ_STATE_FREE;
4057                 mpt_reset(mpt, TRUE);
4058         }
4059         return (error);
4060 }
4061
4062 /*
4063  * When a command times out, it is placed on the requeust_timeout_list
4064  * and we wake our recovery thread.  The MPT-Fusion architecture supports
4065  * only a single TMF operation at a time, so we serially abort/bdr, etc,
4066  * the timedout transactions.  The next TMF is issued either by the
4067  * completion handler of the current TMF waking our recovery thread,
4068  * or the TMF timeout handler causing a hard reset sequence.
4069  */
4070 static void
4071 mpt_recover_commands(struct mpt_softc *mpt)
4072 {
4073         request_t          *req;
4074         union ccb          *ccb;
4075         int                 error;
4076
4077         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4078                 /*
4079                  * No work to do- leave.
4080                  */
4081                 mpt_prt(mpt, "mpt_recover_commands: no requests.\n");
4082                 return;
4083         }
4084
4085         /*
4086          * Flush any commands whose completion coincides with their timeout.
4087          */
4088         mpt_intr(mpt);
4089
4090         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4091                 /*
4092                  * The timedout commands have already
4093                  * completed.  This typically means
4094                  * that either the timeout value was on
4095                  * the hairy edge of what the device
4096                  * requires or - more likely - interrupts
4097                  * are not happening.
4098                  */
4099                 mpt_prt(mpt, "Timedout requests already complete. "
4100                     "Interrupts may not be functioning.\n");
4101                 mpt_enable_ints(mpt);
4102                 return;
4103         }
4104
4105         /*
4106          * We have no visibility into the current state of the
4107          * controller, so attempt to abort the commands in the
4108          * order they timed-out. For initiator commands, we
4109          * depend on the reply handler pulling requests off
4110          * the timeout list.
4111          */
4112         while ((req = TAILQ_FIRST(&mpt->request_timeout_list)) != NULL) {
4113                 uint16_t status;
4114                 uint8_t response;
4115                 MSG_REQUEST_HEADER *hdrp = req->req_vbuf;
4116
4117                 mpt_prt(mpt, "attempting to abort req %p:%u function %x\n",
4118                     req, req->serno, hdrp->Function);
4119                 ccb = req->ccb;
4120                 if (ccb == NULL) {
4121                         mpt_prt(mpt, "null ccb in timed out request. "
4122                             "Resetting Controller.\n");
4123                         mpt_reset(mpt, TRUE);
4124                         continue;
4125                 }
4126                 mpt_set_ccb_status(ccb, CAM_CMD_TIMEOUT);
4127
4128                 /*
4129                  * Check to see if this is not an initiator command and
4130                  * deal with it differently if it is.
4131                  */
4132                 switch (hdrp->Function) {
4133                 case MPI_FUNCTION_SCSI_IO_REQUEST:
4134                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
4135                         break;
4136                 default:
4137                         /*
4138                          * XXX: FIX ME: need to abort target assists...
4139                          */
4140                         mpt_prt(mpt, "just putting it back on the pend q\n");
4141                         TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
4142                         TAILQ_INSERT_HEAD(&mpt->request_pending_list, req,
4143                             links);
4144                         continue;
4145                 }
4146
4147                 error = mpt_scsi_send_tmf(mpt,
4148                     MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
4149                     0, 0, ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
4150                     htole32(req->index | scsi_io_handler_id), TRUE);
4151
4152                 if (error != 0) {
4153                         /*
4154                          * mpt_scsi_send_tmf hard resets on failure, so no
4155                          * need to do so here.  Our queue should be emptied
4156                          * by the hard reset.
4157                          */
4158                         continue;
4159                 }
4160
4161                 error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
4162                     REQ_STATE_DONE, TRUE, 500);
4163
4164                 status = le16toh(mpt->tmf_req->IOCStatus);
4165                 response = mpt->tmf_req->ResponseCode;
4166                 mpt->tmf_req->state = REQ_STATE_FREE;
4167
4168                 if (error != 0) {
4169                         /*
4170                          * If we've errored out,, reset the controller.
4171                          */
4172                         mpt_prt(mpt, "mpt_recover_commands: abort timed-out. "
4173                             "Resetting controller\n");
4174                         mpt_reset(mpt, TRUE);
4175                         continue;
4176                 }
4177
4178                 if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
4179                         mpt_prt(mpt, "mpt_recover_commands: IOC Status 0x%x. "
4180                             "Resetting controller.\n", status);
4181                         mpt_reset(mpt, TRUE);
4182                         continue;
4183                 }
4184
4185                 if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
4186                     response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
4187                         mpt_prt(mpt, "mpt_recover_commands: TMF Response 0x%x. "
4188                             "Resetting controller.\n", response);
4189                         mpt_reset(mpt, TRUE);
4190                         continue;
4191                 }
4192                 mpt_prt(mpt, "abort of req %p:%u completed\n", req, req->serno);
4193         }
4194 }
4195
4196 /************************ Target Mode Support ****************************/
4197 static void
4198 mpt_fc_post_els(struct mpt_softc *mpt, request_t *req, int ioindex)
4199 {
4200         MSG_LINK_SERVICE_BUFFER_POST_REQUEST *fc;
4201         PTR_SGE_TRANSACTION32 tep;
4202         PTR_SGE_SIMPLE32 se;
4203         bus_addr_t paddr;
4204         uint32_t fl;
4205
4206         paddr = req->req_pbuf;
4207         paddr += MPT_RQSL(mpt);
4208
4209         fc = req->req_vbuf;
4210         memset(fc, 0, MPT_REQUEST_AREA);
4211         fc->BufferCount = 1;
4212         fc->Function = MPI_FUNCTION_FC_LINK_SRVC_BUF_POST;
4213         fc->MsgContext = htole32(req->index | fc_els_handler_id);
4214
4215         /*
4216          * Okay, set up ELS buffer pointers. ELS buffer pointers
4217          * consist of a TE SGL element (with details length of zero)
4218          * followed by a SIMPLE SGL element which holds the address
4219          * of the buffer.
4220          */
4221
4222         tep = (PTR_SGE_TRANSACTION32) &fc->SGL;
4223
4224         tep->ContextSize = 4;
4225         tep->Flags = 0;
4226         tep->TransactionContext[0] = htole32(ioindex);
4227
4228         se = (PTR_SGE_SIMPLE32) &tep->TransactionDetails[0];
4229         fl =
4230                 MPI_SGE_FLAGS_HOST_TO_IOC       |
4231                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4232                 MPI_SGE_FLAGS_LAST_ELEMENT      |
4233                 MPI_SGE_FLAGS_END_OF_LIST       |
4234                 MPI_SGE_FLAGS_END_OF_BUFFER;
4235         fl <<= MPI_SGE_FLAGS_SHIFT;
4236         fl |= (MPT_NRFM(mpt) - MPT_RQSL(mpt));
4237         se->FlagsLength = htole32(fl);
4238         se->Address = htole32((uint32_t) paddr);
4239         mpt_lprt(mpt, MPT_PRT_DEBUG,
4240             "add ELS index %d ioindex %d for %p:%u\n",
4241             req->index, ioindex, req, req->serno);
4242         KASSERT(((req->state & REQ_STATE_LOCKED) != 0),
4243             ("mpt_fc_post_els: request not locked"));
4244         mpt_send_cmd(mpt, req);
4245 }
4246
4247 static void
4248 mpt_post_target_command(struct mpt_softc *mpt, request_t *req, int ioindex)
4249 {
4250         PTR_MSG_TARGET_CMD_BUFFER_POST_REQUEST fc;
4251         PTR_CMD_BUFFER_DESCRIPTOR cb;
4252         bus_addr_t paddr;
4253
4254         paddr = req->req_pbuf;
4255         paddr += MPT_RQSL(mpt);
4256         memset(req->req_vbuf, 0, MPT_REQUEST_AREA);
4257         MPT_TGT_STATE(mpt, req)->state = TGT_STATE_LOADING;
4258
4259         fc = req->req_vbuf;
4260         fc->BufferCount = 1;
4261         fc->Function = MPI_FUNCTION_TARGET_CMD_BUFFER_POST;
4262         fc->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4263
4264         cb = &fc->Buffer[0];
4265         cb->IoIndex = htole16(ioindex);
4266         cb->u.PhysicalAddress32 = htole32((U32) paddr);
4267
4268         mpt_check_doorbell(mpt);
4269         mpt_send_cmd(mpt, req);
4270 }
4271
4272 static int
4273 mpt_add_els_buffers(struct mpt_softc *mpt)
4274 {
4275         int i;
4276
4277         if (mpt->is_fc == 0) {
4278                 return (TRUE);
4279         }
4280
4281         if (mpt->els_cmds_allocated) {
4282                 return (TRUE);
4283         }
4284
4285         mpt->els_cmd_ptrs = kmalloc(MPT_MAX_ELS * sizeof (request_t *),
4286             M_DEVBUF, M_NOWAIT | M_ZERO);
4287
4288         if (mpt->els_cmd_ptrs == NULL) {
4289                 return (FALSE);
4290         }
4291
4292         /*
4293          * Feed the chip some ELS buffer resources
4294          */
4295         for (i = 0; i < MPT_MAX_ELS; i++) {
4296                 request_t *req = mpt_get_request(mpt, FALSE);
4297                 if (req == NULL) {
4298                         break;
4299                 }
4300                 req->state |= REQ_STATE_LOCKED;
4301                 mpt->els_cmd_ptrs[i] = req;
4302                 mpt_fc_post_els(mpt, req, i);
4303         }
4304
4305         if (i == 0) {
4306                 mpt_prt(mpt, "unable to add ELS buffer resources\n");
4307                 kfree(mpt->els_cmd_ptrs, M_DEVBUF);
4308                 mpt->els_cmd_ptrs = NULL;
4309                 return (FALSE);
4310         }
4311         if (i != MPT_MAX_ELS) {
4312                 mpt_lprt(mpt, MPT_PRT_INFO,
4313                     "only added %d of %d  ELS buffers\n", i, MPT_MAX_ELS);
4314         }
4315         mpt->els_cmds_allocated = i;
4316         return(TRUE);
4317 }
4318
4319 static int
4320 mpt_add_target_commands(struct mpt_softc *mpt)
4321 {
4322         int i, max;
4323
4324         if (mpt->tgt_cmd_ptrs) {
4325                 return (TRUE);
4326         }
4327
4328         max = MPT_MAX_REQUESTS(mpt) >> 1;
4329         if (max > mpt->mpt_max_tgtcmds) {
4330                 max = mpt->mpt_max_tgtcmds;
4331         }
4332         mpt->tgt_cmd_ptrs =
4333             kmalloc(max * sizeof (request_t *), M_DEVBUF, M_NOWAIT | M_ZERO);
4334         if (mpt->tgt_cmd_ptrs == NULL) {
4335                 mpt_prt(mpt,
4336                     "mpt_add_target_commands: could not allocate cmd ptrs\n");
4337                 return (FALSE);
4338         }
4339
4340         for (i = 0; i < max; i++) {
4341                 request_t *req;
4342
4343                 req = mpt_get_request(mpt, FALSE);
4344                 if (req == NULL) {
4345                         break;
4346                 }
4347                 req->state |= REQ_STATE_LOCKED;
4348                 mpt->tgt_cmd_ptrs[i] = req;
4349                 mpt_post_target_command(mpt, req, i);
4350         }
4351
4352
4353         if (i == 0) {
4354                 mpt_lprt(mpt, MPT_PRT_ERROR, "could not add any target bufs\n");
4355                 kfree(mpt->tgt_cmd_ptrs, M_DEVBUF);
4356                 mpt->tgt_cmd_ptrs = NULL;
4357                 return (FALSE);
4358         }
4359
4360         mpt->tgt_cmds_allocated = i;
4361
4362         if (i < max) {
4363                 mpt_lprt(mpt, MPT_PRT_INFO,
4364                     "added %d of %d target bufs\n", i, max);
4365         }
4366         return (i);
4367 }
4368
4369 static int
4370 mpt_enable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4371 {
4372         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4373                 mpt->twildcard = 1;
4374         } else if (lun >= MPT_MAX_LUNS) {
4375                 return (EINVAL);
4376         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4377                 return (EINVAL);
4378         }
4379         if (mpt->tenabled == 0) {
4380                 if (mpt->is_fc) {
4381                         (void) mpt_fc_reset_link(mpt, 0);
4382                 }
4383                 mpt->tenabled = 1;
4384         }
4385         if (lun == CAM_LUN_WILDCARD) {
4386                 mpt->trt_wildcard.enabled = 1;
4387         } else {
4388                 mpt->trt[lun].enabled = 1;
4389         }
4390         return (0);
4391 }
4392
4393 static int
4394 mpt_disable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4395 {
4396         int i;
4397         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4398                 mpt->twildcard = 0;
4399         } else if (lun >= MPT_MAX_LUNS) {
4400                 return (EINVAL);
4401         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4402                 return (EINVAL);
4403         }
4404         if (lun == CAM_LUN_WILDCARD) {
4405                 mpt->trt_wildcard.enabled = 0;
4406         } else {
4407                 mpt->trt[lun].enabled = 0;
4408         }
4409         for (i = 0; i < MPT_MAX_LUNS; i++) {
4410                 if (mpt->trt[lun].enabled) {
4411                         break;
4412                 }
4413         }
4414         if (i == MPT_MAX_LUNS && mpt->twildcard == 0) {
4415                 if (mpt->is_fc) {
4416                         (void) mpt_fc_reset_link(mpt, 0);
4417                 }
4418                 mpt->tenabled = 0;
4419         }
4420         return (0);
4421 }
4422
4423 /*
4424  * Called with MPT lock held
4425  */
4426 static void
4427 mpt_target_start_io(struct mpt_softc *mpt, union ccb *ccb)
4428 {
4429         struct ccb_scsiio *csio = &ccb->csio;
4430         request_t *cmd_req = MPT_TAG_2_REQ(mpt, csio->tag_id);
4431         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
4432
4433         switch (tgt->state) {
4434         case TGT_STATE_IN_CAM:
4435                 break;
4436         case TGT_STATE_MOVING_DATA:
4437                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4438                 xpt_freeze_simq(mpt->sim, 1);
4439                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4440                 tgt->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4441                 MPTLOCK_2_CAMLOCK(mpt);
4442                 xpt_done(ccb);
4443                 CAMLOCK_2_MPTLOCK(mpt);
4444                 return;
4445         default:
4446                 mpt_prt(mpt, "ccb %p flags 0x%x tag 0x%08x had bad request "
4447                     "starting I/O\n", ccb, csio->ccb_h.flags, csio->tag_id);
4448                 mpt_tgt_dump_req_state(mpt, cmd_req);
4449                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
4450                 MPTLOCK_2_CAMLOCK(mpt);
4451                 xpt_done(ccb);
4452                 CAMLOCK_2_MPTLOCK(mpt);
4453                 return;
4454         }
4455
4456         if (csio->dxfer_len) {
4457                 bus_dmamap_callback_t *cb;
4458                 PTR_MSG_TARGET_ASSIST_REQUEST ta;
4459                 request_t *req;
4460
4461                 KASSERT((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE,
4462                     ("dxfer_len %u but direction is NONE\n", csio->dxfer_len));
4463
4464                 if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4465                         if (mpt->outofbeer == 0) {
4466                                 mpt->outofbeer = 1;
4467                                 xpt_freeze_simq(mpt->sim, 1);
4468                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4469                         }
4470                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4471                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4472                         MPTLOCK_2_CAMLOCK(mpt);
4473                         xpt_done(ccb);
4474                         CAMLOCK_2_MPTLOCK(mpt);
4475                         return;
4476                 }
4477                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4478                 if (sizeof (bus_addr_t) > 4) {
4479                         cb = mpt_execute_req_a64;
4480                 } else {
4481                         cb = mpt_execute_req;
4482                 }
4483
4484                 req->ccb = ccb;
4485                 ccb->ccb_h.ccb_req_ptr = req;
4486
4487                 /*
4488                  * Record the currently active ccb and the
4489                  * request for it in our target state area.
4490                  */
4491                 tgt->ccb = ccb;
4492                 tgt->req = req;
4493
4494                 memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4495                 ta = req->req_vbuf;
4496
4497                 if (mpt->is_sas) {
4498                         PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4499                              cmd_req->req_vbuf;
4500                         ta->QueueTag = ssp->InitiatorTag;
4501                 } else if (mpt->is_spi) {
4502                         PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4503                              cmd_req->req_vbuf;
4504                         ta->QueueTag = sp->Tag;
4505                 }
4506                 ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4507                 ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4508                 ta->ReplyWord = htole32(tgt->reply_desc);
4509                 if (csio->ccb_h.target_lun > MPT_MAX_LUNS) {
4510                         ta->LUN[0] =
4511                             0x40 | ((csio->ccb_h.target_lun >> 8) & 0x3f);
4512                         ta->LUN[1] = csio->ccb_h.target_lun & 0xff;
4513                 } else {
4514                         ta->LUN[1] = csio->ccb_h.target_lun;
4515                 }
4516
4517                 ta->RelativeOffset = tgt->bytes_xfered;
4518                 ta->DataLength = ccb->csio.dxfer_len;
4519                 if (ta->DataLength > tgt->resid) {
4520                         ta->DataLength = tgt->resid;
4521                 }
4522
4523                 /*
4524                  * XXX Should be done after data transfer completes?
4525                  */
4526                 tgt->resid -= csio->dxfer_len;
4527                 tgt->bytes_xfered += csio->dxfer_len;
4528
4529                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
4530                         ta->TargetAssistFlags |=
4531                             TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4532                 }
4533
4534 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4535                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
4536                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
4537                         ta->TargetAssistFlags |=
4538                             TARGET_ASSIST_FLAGS_AUTO_STATUS;
4539                 }
4540 #endif
4541                 tgt->state = TGT_STATE_SETTING_UP_FOR_DATA;
4542
4543                 mpt_lprt(mpt, MPT_PRT_DEBUG,
4544                     "DATA_CCB %p tag %x %u bytes %u resid flg %x req %p:%u "
4545                     "nxtstate=%d\n", csio, csio->tag_id, csio->dxfer_len,
4546                     tgt->resid, ccb->ccb_h.flags, req, req->serno, tgt->state);
4547
4548                 MPTLOCK_2_CAMLOCK(mpt);
4549                 if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
4550                         if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) {
4551                                 int error;
4552                                 crit_enter();
4553                                 error = bus_dmamap_load(mpt->buffer_dmat,
4554                                     req->dmap, csio->data_ptr, csio->dxfer_len,
4555                                     cb, req, 0);
4556                                 crit_exit();
4557                                 if (error == EINPROGRESS) {
4558                                         xpt_freeze_simq(mpt->sim, 1);
4559                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4560                                 }
4561                         } else {
4562                                 /*
4563                                  * We have been given a pointer to single
4564                                  * physical buffer.
4565                                  */
4566                                 struct bus_dma_segment seg;
4567                                 seg.ds_addr = (bus_addr_t)
4568                                     (vm_offset_t)csio->data_ptr;
4569                                 seg.ds_len = csio->dxfer_len;
4570                                 (*cb)(req, &seg, 1, 0);
4571                         }
4572                 } else {
4573                         /*
4574                          * We have been given a list of addresses.
4575                          * This case could be easily supported but they are not
4576                          * currently generated by the CAM subsystem so there
4577                          * is no point in wasting the time right now.
4578                          */
4579                         struct bus_dma_segment *sgs;
4580                         if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
4581                                 (*cb)(req, NULL, 0, EFAULT);
4582                         } else {
4583                                 /* Just use the segments provided */
4584                                 sgs = (struct bus_dma_segment *)csio->data_ptr;
4585                                 (*cb)(req, sgs, csio->sglist_cnt, 0);
4586                         }
4587                 }
4588                 CAMLOCK_2_MPTLOCK(mpt);
4589         } else {
4590                 uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
4591
4592                 /*
4593                  * XXX: I don't know why this seems to happen, but
4594                  * XXX: completing the CCB seems to make things happy.
4595                  * XXX: This seems to happen if the initiator requests
4596                  * XXX: enough data that we have to do multiple CTIOs.
4597                  */
4598                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
4599                         mpt_lprt(mpt, MPT_PRT_DEBUG,
4600                             "Meaningless STATUS CCB (%p): flags %x status %x "
4601                             "resid %d bytes_xfered %u\n", ccb, ccb->ccb_h.flags,
4602                             ccb->ccb_h.status, tgt->resid, tgt->bytes_xfered);
4603                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
4604                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4605                         MPTLOCK_2_CAMLOCK(mpt);
4606                         xpt_done(ccb);
4607                         CAMLOCK_2_MPTLOCK(mpt);
4608                         return;
4609                 }
4610                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
4611                         sp = sense;
4612                         memcpy(sp, &csio->sense_data,
4613                            min(csio->sense_len, MPT_SENSE_SIZE));
4614                 }
4615                 mpt_scsi_tgt_status(mpt, ccb, cmd_req, csio->scsi_status, sp);
4616         }
4617 }
4618
4619 static void
4620 mpt_scsi_tgt_local(struct mpt_softc *mpt, request_t *cmd_req,
4621     uint32_t lun, int send, uint8_t *data, size_t length)
4622 {
4623         mpt_tgt_state_t *tgt;
4624         PTR_MSG_TARGET_ASSIST_REQUEST ta;
4625         SGE_SIMPLE32 *se;
4626         uint32_t flags;
4627         uint8_t *dptr;
4628         bus_addr_t pptr;
4629         request_t *req;
4630
4631         /*
4632          * We enter with resid set to the data load for the command.
4633          */
4634         tgt = MPT_TGT_STATE(mpt, cmd_req);
4635         if (length == 0 || tgt->resid == 0) {
4636                 tgt->resid = 0;
4637                 mpt_scsi_tgt_status(mpt, NULL, cmd_req, 0, NULL);
4638                 return;
4639         }
4640
4641         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4642                 mpt_prt(mpt, "out of resources- dropping local response\n");
4643                 return;
4644         }
4645         tgt->is_local = 1;
4646
4647
4648         memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4649         ta = req->req_vbuf;
4650
4651         if (mpt->is_sas) {
4652                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp = cmd_req->req_vbuf;
4653                 ta->QueueTag = ssp->InitiatorTag;
4654         } else if (mpt->is_spi) {
4655                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp = cmd_req->req_vbuf;
4656                 ta->QueueTag = sp->Tag;
4657         }
4658         ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4659         ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4660         ta->ReplyWord = htole32(tgt->reply_desc);
4661         if (lun > MPT_MAX_LUNS) {
4662                 ta->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4663                 ta->LUN[1] = lun & 0xff;
4664         } else {
4665                 ta->LUN[1] = lun;
4666         }
4667         ta->RelativeOffset = 0;
4668         ta->DataLength = length;
4669
4670         dptr = req->req_vbuf;
4671         dptr += MPT_RQSL(mpt);
4672         pptr = req->req_pbuf;
4673         pptr += MPT_RQSL(mpt);
4674         memcpy(dptr, data, min(length, MPT_RQSL(mpt)));
4675
4676         se = (SGE_SIMPLE32 *) &ta->SGL[0];
4677         memset(se, 0,sizeof (*se));
4678
4679         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
4680         if (send) {
4681                 ta->TargetAssistFlags |= TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4682                 flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
4683         }
4684         se->Address = pptr;
4685         MPI_pSGE_SET_LENGTH(se, length);
4686         flags |= MPI_SGE_FLAGS_LAST_ELEMENT;
4687         flags |= MPI_SGE_FLAGS_END_OF_LIST | MPI_SGE_FLAGS_END_OF_BUFFER;
4688         MPI_pSGE_SET_FLAGS(se, flags);
4689
4690         tgt->ccb = NULL;
4691         tgt->req = req;
4692         tgt->resid -= length;
4693         tgt->bytes_xfered = length;
4694 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4695         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
4696 #else
4697         tgt->state = TGT_STATE_MOVING_DATA;
4698 #endif
4699         mpt_send_cmd(mpt, req);
4700 }
4701
4702 /*
4703  * Abort queued up CCBs
4704  */
4705 static cam_status
4706 mpt_abort_target_ccb(struct mpt_softc *mpt, union ccb *ccb)
4707 {
4708         struct mpt_hdr_stailq *lp;
4709         struct ccb_hdr *srch;
4710         int found = 0;
4711         union ccb *accb = ccb->cab.abort_ccb;
4712         tgt_resource_t *trtp;
4713
4714         mpt_lprt(mpt, MPT_PRT_DEBUG, "aborting ccb %p\n", accb);
4715
4716         if (ccb->ccb_h.target_lun == CAM_LUN_WILDCARD) {
4717                 trtp = &mpt->trt_wildcard;
4718         } else {
4719                 trtp = &mpt->trt[ccb->ccb_h.target_lun];
4720         }
4721
4722         if (accb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
4723                 lp = &trtp->atios;
4724         } else if (accb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
4725                 lp = &trtp->inots;
4726         } else {
4727                 return (CAM_REQ_INVALID);
4728         }
4729
4730         STAILQ_FOREACH(srch, lp, sim_links.stqe) {
4731                 if (srch == &accb->ccb_h) {
4732                         found = 1;
4733                         STAILQ_REMOVE(lp, srch, ccb_hdr, sim_links.stqe);
4734                         break;
4735                 }
4736         }
4737         if (found) {
4738                 accb->ccb_h.status = CAM_REQ_ABORTED;
4739                 xpt_done(accb);
4740                 return (CAM_REQ_CMP);
4741         }
4742         mpt_prt(mpt, "mpt_abort_tgt_ccb: CCB %p not found\n", ccb);
4743         return (CAM_PATH_INVALID);
4744 }
4745
4746 /*
4747  * Ask the MPT to abort the current target command
4748  */
4749 static int
4750 mpt_abort_target_cmd(struct mpt_softc *mpt, request_t *cmd_req)
4751 {
4752         int error;
4753         request_t *req;
4754         PTR_MSG_TARGET_MODE_ABORT abtp;
4755
4756         req = mpt_get_request(mpt, FALSE);
4757         if (req == NULL) {
4758                 return (-1);
4759         }
4760         abtp = req->req_vbuf;
4761         memset(abtp, 0, sizeof (*abtp));
4762
4763         abtp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4764         abtp->AbortType = TARGET_MODE_ABORT_TYPE_EXACT_IO;
4765         abtp->Function = MPI_FUNCTION_TARGET_MODE_ABORT;
4766         abtp->ReplyWord = htole32(MPT_TGT_STATE(mpt, cmd_req)->reply_desc);
4767         error = 0;
4768         if (mpt->is_fc || mpt->is_sas) {
4769                 mpt_send_cmd(mpt, req);
4770         } else {
4771                 error = mpt_send_handshake_cmd(mpt, sizeof(*req), req);
4772         }
4773         return (error);
4774 }
4775
4776 /*
4777  * WE_TRUST_AUTO_GOOD_STATUS- I've found that setting
4778  * TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS leads the
4779  * FC929 to set bogus FC_RSP fields (nonzero residuals
4780  * but w/o RESID fields set). This causes QLogic initiators
4781  * to think maybe that a frame was lost.
4782  *
4783  * WE_CAN_USE_AUTO_REPOST- we can't use AUTO_REPOST because
4784  * we use allocated requests to do TARGET_ASSIST and we
4785  * need to know when to release them.
4786  */
4787
4788 static void
4789 mpt_scsi_tgt_status(struct mpt_softc *mpt, union ccb *ccb, request_t *cmd_req,
4790     uint8_t status, uint8_t const *sense_data)
4791 {
4792         uint8_t *cmd_vbuf;
4793         mpt_tgt_state_t *tgt;
4794         PTR_MSG_TARGET_STATUS_SEND_REQUEST tp;
4795         request_t *req;
4796         bus_addr_t paddr;
4797         int resplen = 0;
4798         uint32_t fl;
4799
4800         cmd_vbuf = cmd_req->req_vbuf;
4801         cmd_vbuf += MPT_RQSL(mpt);
4802         tgt = MPT_TGT_STATE(mpt, cmd_req);
4803
4804         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4805                 if (mpt->outofbeer == 0) {
4806                         mpt->outofbeer = 1;
4807                         xpt_freeze_simq(mpt->sim, 1);
4808                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4809                 }
4810                 if (ccb) {
4811                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4812                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4813                         MPTLOCK_2_CAMLOCK(mpt);
4814                         xpt_done(ccb);
4815                         CAMLOCK_2_MPTLOCK(mpt);
4816                 } else {
4817                         mpt_prt(mpt,
4818                             "could not allocate status request- dropping\n");
4819                 }
4820                 return;
4821         }
4822         req->ccb = ccb;
4823         if (ccb) {
4824                 ccb->ccb_h.ccb_mpt_ptr = mpt;
4825                 ccb->ccb_h.ccb_req_ptr = req;
4826         }
4827
4828         /*
4829          * Record the currently active ccb, if any, and the
4830          * request for it in our target state area.
4831          */
4832         tgt->ccb = ccb;
4833         tgt->req = req;
4834         tgt->state = TGT_STATE_SENDING_STATUS;
4835
4836         tp = req->req_vbuf;
4837         paddr = req->req_pbuf;
4838         paddr += MPT_RQSL(mpt);
4839
4840         memset(tp, 0, sizeof (*tp));
4841         tp->Function = MPI_FUNCTION_TARGET_STATUS_SEND;
4842         if (mpt->is_fc) {
4843                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc =
4844                     (PTR_MPI_TARGET_FCP_CMD_BUFFER) cmd_vbuf;
4845                 uint8_t *sts_vbuf;
4846                 uint32_t *rsp;
4847
4848                 sts_vbuf = req->req_vbuf;
4849                 sts_vbuf += MPT_RQSL(mpt);
4850                 rsp = (uint32_t *) sts_vbuf;
4851                 memcpy(tp->LUN, fc->FcpLun, sizeof (tp->LUN));
4852
4853                 /*
4854                  * The MPI_TARGET_FCP_RSP_BUFFER define is unfortunate.
4855                  * It has to be big-endian in memory and is organized
4856                  * in 32 bit words, which are much easier to deal with
4857                  * as words which are swizzled as needed.
4858                  *
4859                  * All we're filling here is the FC_RSP payload.
4860                  * We may just have the chip synthesize it if
4861                  * we have no residual and an OK status.
4862                  *
4863                  */
4864                 memset(rsp, 0, sizeof (MPI_TARGET_FCP_RSP_BUFFER));
4865
4866                 rsp[2] = status;
4867                 if (tgt->resid) {
4868                         rsp[2] |= 0x800;        /* XXXX NEED MNEMONIC!!!! */
4869                         rsp[3] = htobe32(tgt->resid);
4870 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4871                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4872 #endif
4873                 }
4874                 if (status == SCSI_STATUS_CHECK_COND) {
4875                         int i;
4876
4877                         rsp[2] |= 0x200;        /* XXXX NEED MNEMONIC!!!! */
4878                         rsp[4] = htobe32(MPT_SENSE_SIZE);
4879                         if (sense_data) {
4880                                 memcpy(&rsp[8], sense_data, MPT_SENSE_SIZE);
4881                         } else {
4882                                 mpt_prt(mpt, "mpt_scsi_tgt_status: CHECK CONDI"
4883                                     "TION but no sense data?\n");
4884                                 memset(&rsp, 0, MPT_SENSE_SIZE);
4885                         }
4886                         for (i = 8; i < (8 + (MPT_SENSE_SIZE >> 2)); i++) {
4887                                 rsp[i] = htobe32(rsp[i]);
4888                         }
4889 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4890                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4891 #endif
4892                 }
4893 #ifndef WE_TRUST_AUTO_GOOD_STATUS
4894                 resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4895 #endif
4896                 rsp[2] = htobe32(rsp[2]);
4897         } else if (mpt->is_sas) {
4898                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4899                     (PTR_MPI_TARGET_SSP_CMD_BUFFER) cmd_vbuf;
4900                 memcpy(tp->LUN, ssp->LogicalUnitNumber, sizeof (tp->LUN));
4901         } else {
4902                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4903                     (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) cmd_vbuf;
4904                 tp->StatusCode = status;
4905                 tp->QueueTag = htole16(sp->Tag);
4906                 memcpy(tp->LUN, sp->LogicalUnitNumber, sizeof (tp->LUN));
4907         }
4908
4909         tp->ReplyWord = htole32(tgt->reply_desc);
4910         tp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4911
4912 #ifdef  WE_CAN_USE_AUTO_REPOST
4913         tp->MsgFlags = TARGET_STATUS_SEND_FLAGS_REPOST_CMD_BUFFER;
4914 #endif
4915         if (status == SCSI_STATUS_OK && resplen == 0) {
4916                 tp->MsgFlags |= TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS;
4917         } else {
4918                 tp->StatusDataSGE.u.Address32 = htole32((uint32_t) paddr);
4919                 fl =
4920                         MPI_SGE_FLAGS_HOST_TO_IOC       |
4921                         MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4922                         MPI_SGE_FLAGS_LAST_ELEMENT      |
4923                         MPI_SGE_FLAGS_END_OF_LIST       |
4924                         MPI_SGE_FLAGS_END_OF_BUFFER;
4925                 fl <<= MPI_SGE_FLAGS_SHIFT;
4926                 fl |= resplen;
4927                 tp->StatusDataSGE.FlagsLength = htole32(fl);
4928         }
4929
4930         mpt_lprt(mpt, MPT_PRT_DEBUG,
4931             "STATUS_CCB %p (wit%s sense) tag %x req %p:%u resid %u\n",
4932             ccb, sense_data?"h" : "hout", ccb? ccb->csio.tag_id : -1, req,
4933             req->serno, tgt->resid);
4934         if (ccb) {
4935                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4936                 mpt_req_timeout(req, 60 * hz, mpt_timeout, ccb);
4937         }
4938         mpt_send_cmd(mpt, req);
4939 }
4940
4941 static void
4942 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *mpt, request_t *req, mpt_task_mgmt_t fc,
4943     tgt_resource_t *trtp, int init_id)
4944 {
4945         struct ccb_immed_notify *inot;
4946         mpt_tgt_state_t *tgt;
4947
4948         tgt = MPT_TGT_STATE(mpt, req);
4949         inot = (struct ccb_immed_notify *) STAILQ_FIRST(&trtp->inots);
4950         if (inot == NULL) {
4951                 mpt_lprt(mpt, MPT_PRT_WARN, "no INOTSs- sending back BSY\n");
4952                 mpt_scsi_tgt_status(mpt, NULL, req, SCSI_STATUS_BUSY, NULL);
4953                 return;
4954         }
4955         STAILQ_REMOVE_HEAD(&trtp->inots, sim_links.stqe);
4956         mpt_lprt(mpt, MPT_PRT_DEBUG1,
4957             "Get FREE INOT %p lun %d\n", inot, inot->ccb_h.target_lun);
4958
4959         memset(&inot->sense_data, 0, sizeof (inot->sense_data));
4960         inot->sense_len = 0;
4961         memset(inot->message_args, 0, sizeof (inot->message_args));
4962         inot->initiator_id = init_id;   /* XXX */
4963
4964         /*
4965          * This is a somewhat grotesque attempt to map from task management
4966          * to old style SCSI messages. God help us all.
4967          */
4968         switch (fc) {
4969         case MPT_ABORT_TASK_SET:
4970                 inot->message_args[0] = MSG_ABORT_TAG;
4971                 break;
4972         case MPT_CLEAR_TASK_SET:
4973                 inot->message_args[0] = MSG_CLEAR_TASK_SET;
4974                 break;
4975         case MPT_TARGET_RESET:
4976                 inot->message_args[0] = MSG_TARGET_RESET;
4977                 break;
4978         case MPT_CLEAR_ACA:
4979                 inot->message_args[0] = MSG_CLEAR_ACA;
4980                 break;
4981         case MPT_TERMINATE_TASK:
4982                 inot->message_args[0] = MSG_ABORT_TAG;
4983                 break;
4984         default:
4985                 inot->message_args[0] = MSG_NOOP;
4986                 break;
4987         }
4988         tgt->ccb = (union ccb *) inot;
4989         inot->ccb_h.status = CAM_MESSAGE_RECV|CAM_DEV_QFRZN;
4990         MPTLOCK_2_CAMLOCK(mpt);
4991         xpt_done((union ccb *)inot);
4992         CAMLOCK_2_MPTLOCK(mpt);
4993 }
4994
4995 static void
4996 mpt_scsi_tgt_atio(struct mpt_softc *mpt, request_t *req, uint32_t reply_desc)
4997 {
4998         static uint8_t null_iqd[SHORT_INQUIRY_LENGTH] = {
4999             0x7f, 0x00, 0x02, 0x02, 0x20, 0x00, 0x00, 0x32,
5000              'F',  'R',  'E',  'E',  'B',  'S',  'D',  ' ',
5001              'L',  'S',  'I',  '-',  'L',  'O',  'G',  'I',
5002              'C',  ' ',  'N',  'U',  'L',  'D',  'E',  'V',
5003              '0',  '0',  '0',  '1'
5004         };
5005         struct ccb_accept_tio *atiop;
5006         lun_id_t lun;
5007         int tag_action = 0;
5008         mpt_tgt_state_t *tgt;
5009         tgt_resource_t *trtp = NULL;
5010         U8 *lunptr;
5011         U8 *vbuf;
5012         U16 itag;
5013         U16 ioindex;
5014         mpt_task_mgmt_t fct = MPT_NIL_TMT_VALUE;
5015         uint8_t *cdbp;
5016
5017         /*
5018          * Stash info for the current command where we can get at it later.
5019          */
5020         vbuf = req->req_vbuf;
5021         vbuf += MPT_RQSL(mpt);
5022
5023         /*
5024          * Get our state pointer set up.
5025          */
5026         tgt = MPT_TGT_STATE(mpt, req);
5027         if (tgt->state != TGT_STATE_LOADED) {
5028                 mpt_tgt_dump_req_state(mpt, req);
5029                 panic("bad target state in mpt_scsi_tgt_atio");
5030         }
5031         memset(tgt, 0, sizeof (mpt_tgt_state_t));
5032         tgt->state = TGT_STATE_IN_CAM;
5033         tgt->reply_desc = reply_desc;
5034         ioindex = GET_IO_INDEX(reply_desc);
5035         if (mpt->verbose >= MPT_PRT_DEBUG) {
5036                 mpt_dump_data(mpt, "mpt_scsi_tgt_atio response", vbuf,
5037                     max(sizeof (MPI_TARGET_FCP_CMD_BUFFER),
5038                     max(sizeof (MPI_TARGET_SSP_CMD_BUFFER),
5039                     sizeof (MPI_TARGET_SCSI_SPI_CMD_BUFFER))));
5040         }
5041         if (mpt->is_fc) {
5042                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc;
5043                 fc = (PTR_MPI_TARGET_FCP_CMD_BUFFER) vbuf;
5044                 if (fc->FcpCntl[2]) {
5045                         /*
5046                          * Task Management Request
5047                          */
5048                         switch (fc->FcpCntl[2]) {
5049                         case 0x2:
5050                                 fct = MPT_ABORT_TASK_SET;
5051                                 break;
5052                         case 0x4:
5053                                 fct = MPT_CLEAR_TASK_SET;
5054                                 break;
5055                         case 0x20:
5056                                 fct = MPT_TARGET_RESET;
5057                                 break;
5058                         case 0x40:
5059                                 fct = MPT_CLEAR_ACA;
5060                                 break;
5061                         case 0x80:
5062                                 fct = MPT_TERMINATE_TASK;
5063                                 break;
5064                         default:
5065                                 mpt_prt(mpt, "CORRUPTED TASK MGMT BITS: 0x%x\n",
5066                                     fc->FcpCntl[2]);
5067                                 mpt_scsi_tgt_status(mpt, 0, req,
5068                                     SCSI_STATUS_OK, 0);
5069                                 return;
5070                         }
5071                 } else {
5072                         switch (fc->FcpCntl[1]) {
5073                         case 0:
5074                                 tag_action = MSG_SIMPLE_Q_TAG;
5075                                 break;
5076                         case 1:
5077                                 tag_action = MSG_HEAD_OF_Q_TAG;
5078                                 break;
5079                         case 2:
5080                                 tag_action = MSG_ORDERED_Q_TAG;
5081                                 break;
5082                         default:
5083                                 /*
5084                                  * Bah. Ignore Untagged Queing and ACA
5085                                  */
5086                                 tag_action = MSG_SIMPLE_Q_TAG;
5087                                 break;
5088                         }
5089                 }
5090                 tgt->resid = be32toh(fc->FcpDl);
5091                 cdbp = fc->FcpCdb;
5092                 lunptr = fc->FcpLun;
5093                 itag = be16toh(fc->OptionalOxid);
5094         } else if (mpt->is_sas) {
5095                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp;
5096                 ssp = (PTR_MPI_TARGET_SSP_CMD_BUFFER) vbuf;
5097                 cdbp = ssp->CDB;
5098                 lunptr = ssp->LogicalUnitNumber;
5099                 itag = ssp->InitiatorTag;
5100         } else {
5101                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp;
5102                 sp = (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) vbuf;
5103                 cdbp = sp->CDB;
5104                 lunptr = sp->LogicalUnitNumber;
5105                 itag = sp->Tag;
5106         }
5107
5108         /*
5109          * Generate a simple lun
5110          */
5111         switch (lunptr[0] & 0xc0) {
5112         case 0x40:
5113                 lun = ((lunptr[0] & 0x3f) << 8) | lunptr[1];
5114                 break;
5115         case 0:
5116                 lun = lunptr[1];
5117                 break;
5118         default:
5119                 mpt_lprt(mpt, MPT_PRT_ERROR, "cannot handle this type lun\n");
5120                 lun = 0xffff;
5121                 break;
5122         }
5123
5124         /*
5125          * Deal with non-enabled or bad luns here.
5126          */
5127         if (lun >= MPT_MAX_LUNS || mpt->tenabled == 0 ||
5128             mpt->trt[lun].enabled == 0) {
5129                 if (mpt->twildcard) {
5130                         trtp = &mpt->trt_wildcard;
5131                 } else if (fct == MPT_NIL_TMT_VALUE) {
5132                         /*
5133                          * In this case, we haven't got an upstream listener
5134                          * for either a specific lun or wildcard luns. We
5135                          * have to make some sensible response. For regular
5136                          * inquiry, just return some NOT HERE inquiry data.
5137                          * For VPD inquiry, report illegal field in cdb.
5138                          * For REQUEST SENSE, just return NO SENSE data.
5139                          * REPORT LUNS gets illegal command.
5140                          * All other commands get 'no such device'.
5141                          */
5142                         uint8_t *sp, cond, buf[MPT_SENSE_SIZE];
5143                         size_t len;
5144
5145                         memset(buf, 0, MPT_SENSE_SIZE);
5146                         cond = SCSI_STATUS_CHECK_COND;
5147                         buf[0] = 0xf0;
5148                         buf[2] = 0x5;
5149                         buf[7] = 0x8;
5150                         sp = buf;
5151                         tgt->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5152
5153                         switch (cdbp[0]) {
5154                         case INQUIRY:
5155                         {
5156                                 if (cdbp[1] != 0) {
5157                                         buf[12] = 0x26;
5158                                         buf[13] = 0x01;
5159                                         break;
5160                                 }
5161                                 len = min(tgt->resid, cdbp[4]);
5162                                 len = min(len, sizeof (null_iqd));
5163                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5164                                     "local inquiry %ld bytes\n", (long) len);
5165                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5166                                     null_iqd, len);
5167                                 return;
5168                         }
5169                         case REQUEST_SENSE:
5170                         {
5171                                 buf[2] = 0x0;
5172                                 len = min(tgt->resid, cdbp[4]);
5173                                 len = min(len, sizeof (buf));
5174                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5175                                     "local reqsense %ld bytes\n", (long) len);
5176                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5177                                     buf, len);
5178                                 return;
5179                         }
5180                         case REPORT_LUNS:
5181                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "REPORT LUNS\n");
5182                                 buf[12] = 0x26;
5183                                 return;
5184                         default:
5185                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5186                                     "CMD 0x%x to unmanaged lun %u\n",
5187                                     cdbp[0], lun);
5188                                 buf[12] = 0x25;
5189                                 break;
5190                         }
5191                         mpt_scsi_tgt_status(mpt, NULL, req, cond, sp);
5192                         return;
5193                 }
5194                 /* otherwise, leave trtp NULL */
5195         } else {
5196                 trtp = &mpt->trt[lun];
5197         }
5198
5199         /*
5200          * Deal with any task management
5201          */
5202         if (fct != MPT_NIL_TMT_VALUE) {
5203                 if (trtp == NULL) {
5204                         mpt_prt(mpt, "task mgmt function %x but no listener\n",
5205                             fct);
5206                         mpt_scsi_tgt_status(mpt, 0, req,
5207                             SCSI_STATUS_OK, 0);
5208                 } else {
5209                         mpt_scsi_tgt_tsk_mgmt(mpt, req, fct, trtp,
5210                             GET_INITIATOR_INDEX(reply_desc));
5211                 }
5212                 return;
5213         }
5214
5215
5216         atiop = (struct ccb_accept_tio *) STAILQ_FIRST(&trtp->atios);
5217         if (atiop == NULL) {
5218                 mpt_lprt(mpt, MPT_PRT_WARN,
5219                     "no ATIOs for lun %u- sending back %s\n", lun,
5220                     mpt->tenabled? "QUEUE FULL" : "BUSY");
5221                 mpt_scsi_tgt_status(mpt, NULL, req,
5222                     mpt->tenabled? SCSI_STATUS_QUEUE_FULL : SCSI_STATUS_BUSY,
5223                     NULL);
5224                 return;
5225         }
5226         STAILQ_REMOVE_HEAD(&trtp->atios, sim_links.stqe);
5227         mpt_lprt(mpt, MPT_PRT_DEBUG1,
5228             "Get FREE ATIO %p lun %d\n", atiop, atiop->ccb_h.target_lun);
5229         atiop->ccb_h.ccb_mpt_ptr = mpt;
5230         atiop->ccb_h.status = CAM_CDB_RECVD;
5231         atiop->ccb_h.target_lun = lun;
5232         atiop->sense_len = 0;
5233         atiop->init_id = GET_INITIATOR_INDEX(reply_desc);
5234         atiop->cdb_len = mpt_cdblen(cdbp[0], 16);
5235         memcpy(atiop->cdb_io.cdb_bytes, cdbp, atiop->cdb_len);
5236
5237         /*
5238          * The tag we construct here allows us to find the
5239          * original request that the command came in with.
5240          *
5241          * This way we don't have to depend on anything but the
5242          * tag to find things when CCBs show back up from CAM.
5243          */
5244         atiop->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5245         tgt->tag_id = atiop->tag_id;
5246         if (tag_action) {
5247                 atiop->tag_action = tag_action;
5248                 atiop->ccb_h.flags = CAM_TAG_ACTION_VALID;
5249         }
5250         if (mpt->verbose >= MPT_PRT_DEBUG) {
5251                 int i;
5252                 mpt_prt(mpt, "START_CCB %p for lun %u CDB=<", atiop,
5253                     atiop->ccb_h.target_lun);
5254                 for (i = 0; i < atiop->cdb_len; i++) {
5255                         mpt_prtc(mpt, "%02x%c", cdbp[i] & 0xff,
5256                             (i == (atiop->cdb_len - 1))? '>' : ' ');
5257                 }
5258                 mpt_prtc(mpt, " itag %x tag %x rdesc %x dl=%u\n",
5259                     itag, atiop->tag_id, tgt->reply_desc, tgt->resid);
5260         }
5261
5262         MPTLOCK_2_CAMLOCK(mpt);
5263         xpt_done((union ccb *)atiop);
5264         CAMLOCK_2_MPTLOCK(mpt);
5265 }
5266
5267 static void
5268 mpt_tgt_dump_tgt_state(struct mpt_softc *mpt, request_t *req)
5269 {
5270         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5271
5272         mpt_prt(mpt, "req %p:%u tgt:rdesc 0x%x resid %u xfrd %u ccb %p treq %p "
5273             "nx %d tag 0x%08x state=%d\n", req, req->serno, tgt->reply_desc,
5274             tgt->resid, tgt->bytes_xfered, tgt->ccb, tgt->req, tgt->nxfers,
5275             tgt->tag_id, tgt->state);
5276 }
5277
5278 static void
5279 mpt_tgt_dump_req_state(struct mpt_softc *mpt, request_t *req)
5280 {
5281         mpt_prt(mpt, "req %p:%u index %u (%x) state %x\n", req, req->serno,
5282             req->index, req->index, req->state);
5283         mpt_tgt_dump_tgt_state(mpt, req);
5284 }
5285
5286 static int
5287 mpt_scsi_tgt_reply_handler(struct mpt_softc *mpt, request_t *req,
5288     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
5289 {
5290         int dbg;
5291         union ccb *ccb;
5292         U16 status;
5293
5294         if (reply_frame == NULL) {
5295                 /*
5296                  * Figure out what the state of the command is.
5297                  */
5298                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5299
5300 #ifdef  INVARIANTS
5301                 mpt_req_spcl(mpt, req, "turbo scsi_tgt_reply", __LINE__);
5302                 if (tgt->req) {
5303                         mpt_req_not_spcl(mpt, tgt->req,
5304                             "turbo scsi_tgt_reply associated req", __LINE__);
5305                 }
5306 #endif
5307                 switch(tgt->state) {
5308                 case TGT_STATE_LOADED:
5309                         /*
5310                          * This is a new command starting.
5311                          */
5312                         mpt_scsi_tgt_atio(mpt, req, reply_desc);
5313                         break;
5314                 case TGT_STATE_MOVING_DATA:
5315                 {
5316                         uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
5317
5318                         ccb = tgt->ccb;
5319                         if (tgt->req == NULL) {
5320                                 panic("mpt: turbo target reply with null "
5321                                     "associated request moving data");
5322                                 /* NOTREACHED */
5323                         }
5324                         if (ccb == NULL) {
5325                                 if (tgt->is_local == 0) {
5326                                         panic("mpt: turbo target reply with "
5327                                             "null associated ccb moving data");
5328                                         /* NOTREACHED */
5329                                 }
5330                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5331                                     "TARGET_ASSIST local done\n");
5332                                 TAILQ_REMOVE(&mpt->request_pending_list,
5333                                     tgt->req, links);
5334                                 mpt_free_request(mpt, tgt->req);
5335                                 tgt->req = NULL;
5336                                 mpt_scsi_tgt_status(mpt, NULL, req,
5337                                     0, NULL);
5338                                 return (TRUE);
5339                         }
5340                         tgt->ccb = NULL;
5341                         tgt->nxfers++;
5342                         mpt_req_untimeout(req, mpt_timeout, ccb);
5343                         mpt_lprt(mpt, MPT_PRT_DEBUG,
5344                             "TARGET_ASSIST %p (req %p:%u) done tag 0x%x\n",
5345                             ccb, tgt->req, tgt->req->serno, ccb->csio.tag_id);
5346                         /*
5347                          * Free the Target Assist Request
5348                          */
5349                         KASSERT(tgt->req->ccb == ccb,
5350                             ("tgt->req %p:%u tgt->req->ccb %p", tgt->req,
5351                             tgt->req->serno, tgt->req->ccb));
5352                         TAILQ_REMOVE(&mpt->request_pending_list,
5353                             tgt->req, links);
5354                         mpt_free_request(mpt, tgt->req);
5355                         tgt->req = NULL;
5356
5357                         /*
5358                          * Do we need to send status now? That is, are
5359                          * we done with all our data transfers?
5360                          */
5361                         if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
5362                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5363                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5364                                 KASSERT(ccb->ccb_h.status,
5365                                     ("zero ccb sts at %d\n", __LINE__));
5366                                 tgt->state = TGT_STATE_IN_CAM;
5367                                 if (mpt->outofbeer) {
5368                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5369                                         mpt->outofbeer = 0;
5370                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5371                                 }
5372                                 MPTLOCK_2_CAMLOCK(mpt);
5373                                 xpt_done(ccb);
5374                                 CAMLOCK_2_MPTLOCK(mpt);
5375                                 break;
5376                         }
5377                         /*
5378                          * Otherwise, send status (and sense)
5379                          */
5380                         if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5381                                 sp = sense;
5382                                 memcpy(sp, &ccb->csio.sense_data,
5383                                    min(ccb->csio.sense_len, MPT_SENSE_SIZE));
5384                         }
5385                         mpt_scsi_tgt_status(mpt, ccb, req,
5386                             ccb->csio.scsi_status, sp);
5387                         break;
5388                 }
5389                 case TGT_STATE_SENDING_STATUS:
5390                 case TGT_STATE_MOVING_DATA_AND_STATUS:
5391                 {
5392                         int ioindex;
5393                         ccb = tgt->ccb;
5394
5395                         if (tgt->req == NULL) {
5396                                 panic("mpt: turbo target reply with null "
5397                                     "associated request sending status");
5398                                 /* NOTREACHED */
5399                         }
5400
5401                         if (ccb) {
5402                                 tgt->ccb = NULL;
5403                                 if (tgt->state ==
5404                                     TGT_STATE_MOVING_DATA_AND_STATUS) {
5405                                         tgt->nxfers++;
5406                                 }
5407                                 mpt_req_untimeout(req, mpt_timeout, ccb);
5408                                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5409                                         ccb->ccb_h.status |= CAM_SENT_SENSE;
5410                                 }
5411                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5412                                     "TARGET_STATUS tag %x sts %x flgs %x req "
5413                                     "%p\n", ccb->csio.tag_id, ccb->ccb_h.status,
5414                                     ccb->ccb_h.flags, tgt->req);
5415                                 /*
5416                                  * Free the Target Send Status Request
5417                                  */
5418                                 KASSERT(tgt->req->ccb == ccb,
5419                                     ("tgt->req %p:%u tgt->req->ccb %p",
5420                                     tgt->req, tgt->req->serno, tgt->req->ccb));
5421                                 /*
5422                                  * Notify CAM that we're done
5423                                  */
5424                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5425                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5426                                 KASSERT(ccb->ccb_h.status,
5427                                     ("ZERO ccb sts at %d\n", __LINE__));
5428                                 tgt->ccb = NULL;
5429                         } else {
5430                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5431                                     "TARGET_STATUS non-CAM for  req %p:%u\n",
5432                                     tgt->req, tgt->req->serno);
5433                         }
5434                         TAILQ_REMOVE(&mpt->request_pending_list,
5435                             tgt->req, links);
5436                         mpt_free_request(mpt, tgt->req);
5437                         tgt->req = NULL;
5438
5439                         /*
5440                          * And re-post the Command Buffer.
5441                          * This will reset the state.
5442                          */
5443                         ioindex = GET_IO_INDEX(reply_desc);
5444                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5445                         tgt->is_local = 0;
5446                         mpt_post_target_command(mpt, req, ioindex);
5447
5448                         /*
5449                          * And post a done for anyone who cares
5450                          */
5451                         if (ccb) {
5452                                 if (mpt->outofbeer) {
5453                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5454                                         mpt->outofbeer = 0;
5455                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5456                                 }
5457                                 MPTLOCK_2_CAMLOCK(mpt);
5458                                 xpt_done(ccb);
5459                                 CAMLOCK_2_MPTLOCK(mpt);
5460                         }
5461                         break;
5462                 }
5463                 case TGT_STATE_NIL:     /* XXX This Never Happens XXX */
5464                         tgt->state = TGT_STATE_LOADED;
5465                         break;
5466                 default:
5467                         mpt_prt(mpt, "Unknown Target State 0x%x in Context "
5468                             "Reply Function\n", tgt->state);
5469                 }
5470                 return (TRUE);
5471         }
5472
5473         status = le16toh(reply_frame->IOCStatus);
5474         if (status != MPI_IOCSTATUS_SUCCESS) {
5475                 dbg = MPT_PRT_ERROR;
5476         } else {
5477                 dbg = MPT_PRT_DEBUG1;
5478         }
5479
5480         mpt_lprt(mpt, dbg,
5481             "SCSI_TGT REPLY: req=%p:%u reply=%p func=%x IOCstatus 0x%x\n",
5482              req, req->serno, reply_frame, reply_frame->Function, status);
5483
5484         switch (reply_frame->Function) {
5485         case MPI_FUNCTION_TARGET_CMD_BUFFER_POST:
5486         {
5487                 mpt_tgt_state_t *tgt;
5488 #ifdef  INVARIANTS
5489                 mpt_req_spcl(mpt, req, "tgt reply BUFFER POST", __LINE__);
5490 #endif
5491                 if (status != MPI_IOCSTATUS_SUCCESS) {
5492                         /*
5493                          * XXX What to do?
5494                          */
5495                         break;
5496                 }
5497                 tgt = MPT_TGT_STATE(mpt, req);
5498                 KASSERT(tgt->state == TGT_STATE_LOADING,
5499                     ("bad state 0x%x on reply to buffer post\n", tgt->state));
5500                 mpt_assign_serno(mpt, req);
5501                 tgt->state = TGT_STATE_LOADED;
5502                 break;
5503         }
5504         case MPI_FUNCTION_TARGET_ASSIST:
5505 #ifdef  INVARIANTS
5506                 mpt_req_not_spcl(mpt, req, "tgt reply TARGET ASSIST", __LINE__);
5507 #endif
5508                 mpt_prt(mpt, "target assist completion\n");
5509                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5510                 mpt_free_request(mpt, req);
5511                 break;
5512         case MPI_FUNCTION_TARGET_STATUS_SEND:
5513 #ifdef  INVARIANTS
5514                 mpt_req_not_spcl(mpt, req, "tgt reply STATUS SEND", __LINE__);
5515 #endif
5516                 mpt_prt(mpt, "status send completion\n");
5517                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5518                 mpt_free_request(mpt, req);
5519                 break;
5520         case MPI_FUNCTION_TARGET_MODE_ABORT:
5521         {
5522                 PTR_MSG_TARGET_MODE_ABORT_REPLY abtrp =
5523                     (PTR_MSG_TARGET_MODE_ABORT_REPLY) reply_frame;
5524                 PTR_MSG_TARGET_MODE_ABORT abtp =
5525                     (PTR_MSG_TARGET_MODE_ABORT) req->req_vbuf;
5526                 uint32_t cc = GET_IO_INDEX(le32toh(abtp->ReplyWord));
5527 #ifdef  INVARIANTS
5528                 mpt_req_not_spcl(mpt, req, "tgt reply TMODE ABORT", __LINE__);
5529 #endif
5530                 mpt_prt(mpt, "ABORT RX_ID 0x%x Complete; status 0x%x cnt %u\n",
5531                     cc, le16toh(abtrp->IOCStatus), le32toh(abtrp->AbortCount));
5532                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5533                 mpt_free_request(mpt, req);
5534                 break;
5535         }
5536         default:
5537                 mpt_prt(mpt, "Unknown Target Address Reply Function code: "
5538                     "0x%x\n", reply_frame->Function);
5539                 break;
5540         }
5541         return (TRUE);
5542 }