sys/dev/aacraid/aacraid.c

   1 /*-
   2  * Copyright (c) 2000 Michael Smith
   3  * Copyright (c) 2001 Scott Long
   4  * Copyright (c) 2000 BSDi
   5  * Copyright (c) 2001-2010 Adaptec, Inc.
   6  * Copyright (c) 2010-2012 PMC-Sierra, Inc.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __FBSDID("$FreeBSD$");
  33
  34 /*
  35  * Driver for the Adaptec by PMC Series 6,7,8,... families of RAID controllers
  36  */
  37 #define AAC_DRIVERNAME                  "aacraid"
  38
  39 #include "opt_aacraid.h"
  40
  41 /* #include <stddef.h> */
  42 #include <sys/param.h>
  43 #include <sys/systm.h>
  44 #include <sys/malloc.h>
  45 #include <sys/kernel.h>
  46 #include <sys/kthread.h>
  47 #include <sys/sysctl.h>
  48 #include <sys/poll.h>
  49 #include <sys/ioccom.h>
  50
  51 #include <sys/bus.h>
  52 #include <sys/conf.h>
  53 #include <sys/signalvar.h>
  54 #include <sys/time.h>
  55 #include <sys/eventhandler.h>
  56 #include <sys/rman.h>
  57
  58 #include <machine/bus.h>
  59 #include <sys/bus_dma.h>
  60 #include <machine/resource.h>
  61
  62 #include <dev/pci/pcireg.h>
  63 #include <dev/pci/pcivar.h>
  64
  65 #include <dev/aacraid/aacraid_reg.h>
  66 #include <sys/aac_ioctl.h>
  67 #include <dev/aacraid/aacraid_debug.h>
  68 #include <dev/aacraid/aacraid_var.h>
  69
  70 #ifndef FILTER_HANDLED
  71 #define FILTER_HANDLED  0x02
  72 #endif
  73
  74 static void     aac_add_container(struct aac_softc *sc,
  75                                   struct aac_mntinforesp *mir, int f,
  76                                   u_int32_t uid);
  77 static void     aac_get_bus_info(struct aac_softc *sc);
  78 static void     aac_container_bus(struct aac_softc *sc);
  79 static void     aac_daemon(void *arg);
  80 static int aac_convert_sgraw2(struct aac_softc *sc, struct aac_raw_io2 *raw,
  81                                                           int pages, int nseg, int nseg_new);
  82
  83 /* Command Processing */
  84 static void     aac_timeout(struct aac_softc *sc);
  85 static void     aac_command_thread(struct aac_softc *sc);
  86 static int      aac_sync_fib(struct aac_softc *sc, u_int32_t command,
  87                                      u_int32_t xferstate, struct aac_fib *fib,
  88                                      u_int16_t datasize);
  89 /* Command Buffer Management */
  90 static void     aac_map_command_helper(void *arg, bus_dma_segment_t *segs,
  91                                        int nseg, int error);
  92 static int      aac_alloc_commands(struct aac_softc *sc);
  93 static void     aac_free_commands(struct aac_softc *sc);
  94 static void     aac_unmap_command(struct aac_command *cm);
  95
  96 /* Hardware Interface */
  97 static int      aac_alloc(struct aac_softc *sc);
  98 static void     aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg,
  99                                int error);
 100 static int      aac_check_firmware(struct aac_softc *sc);
 101 static void     aac_define_int_mode(struct aac_softc *sc);
 102 static int      aac_init(struct aac_softc *sc);
 103 static int      aac_find_pci_capability(struct aac_softc *sc, int cap);
 104 static int      aac_setup_intr(struct aac_softc *sc);
 105 static int      aac_check_config(struct aac_softc *sc);
 106
 107 /* PMC SRC interface */
 108 static int      aac_src_get_fwstatus(struct aac_softc *sc);
 109 static void     aac_src_qnotify(struct aac_softc *sc, int qbit);
 110 static int      aac_src_get_istatus(struct aac_softc *sc);
 111 static void     aac_src_clear_istatus(struct aac_softc *sc, int mask);
 112 static void     aac_src_set_mailbox(struct aac_softc *sc, u_int32_t command,
 113                                     u_int32_t arg0, u_int32_t arg1,
 114                                     u_int32_t arg2, u_int32_t arg3);
 115 static int      aac_src_get_mailbox(struct aac_softc *sc, int mb);
 116 static void     aac_src_access_devreg(struct aac_softc *sc, int mode);
 117 static int aac_src_send_command(struct aac_softc *sc, struct aac_command *cm);
 118 static int aac_src_get_outb_queue(struct aac_softc *sc);
 119 static void aac_src_set_outb_queue(struct aac_softc *sc, int index);
 120
 121 struct aac_interface aacraid_src_interface = {
 122         aac_src_get_fwstatus,
 123         aac_src_qnotify,
 124         aac_src_get_istatus,
 125         aac_src_clear_istatus,
 126         aac_src_set_mailbox,
 127         aac_src_get_mailbox,
 128         aac_src_access_devreg,
 129         aac_src_send_command,
 130         aac_src_get_outb_queue,
 131         aac_src_set_outb_queue
 132 };
 133
 134 /* PMC SRCv interface */
 135 static void     aac_srcv_set_mailbox(struct aac_softc *sc, u_int32_t command,
 136                                     u_int32_t arg0, u_int32_t arg1,
 137                                     u_int32_t arg2, u_int32_t arg3);
 138 static int      aac_srcv_get_mailbox(struct aac_softc *sc, int mb);
 139
 140 struct aac_interface aacraid_srcv_interface = {
 141         aac_src_get_fwstatus,
 142         aac_src_qnotify,
 143         aac_src_get_istatus,
 144         aac_src_clear_istatus,
 145         aac_srcv_set_mailbox,
 146         aac_srcv_get_mailbox,
 147         aac_src_access_devreg,
 148         aac_src_send_command,
 149         aac_src_get_outb_queue,
 150         aac_src_set_outb_queue
 151 };
 152
 153 /* Debugging and Diagnostics */
 154 static struct aac_code_lookup aac_cpu_variant[] = {
 155         {"i960JX",              CPUI960_JX},
 156         {"i960CX",              CPUI960_CX},
 157         {"i960HX",              CPUI960_HX},
 158         {"i960RX",              CPUI960_RX},
 159         {"i960 80303",          CPUI960_80303},
 160         {"StrongARM SA110",     CPUARM_SA110},
 161         {"PPC603e",             CPUPPC_603e},
 162         {"XScale 80321",        CPU_XSCALE_80321},
 163         {"MIPS 4KC",            CPU_MIPS_4KC},
 164         {"MIPS 5KC",            CPU_MIPS_5KC},
 165         {"Unknown StrongARM",   CPUARM_xxx},
 166         {"Unknown PowerPC",     CPUPPC_xxx},
 167         {NULL, 0},
 168         {"Unknown processor",   0}
 169 };
 170
 171 static struct aac_code_lookup aac_battery_platform[] = {
 172         {"required battery present",            PLATFORM_BAT_REQ_PRESENT},
 173         {"REQUIRED BATTERY NOT PRESENT",        PLATFORM_BAT_REQ_NOTPRESENT},
 174         {"optional battery present",            PLATFORM_BAT_OPT_PRESENT},
 175         {"optional battery not installed",      PLATFORM_BAT_OPT_NOTPRESENT},
 176         {"no battery support",                  PLATFORM_BAT_NOT_SUPPORTED},
 177         {NULL, 0},
 178         {"unknown battery platform",            0}
 179 };
 180 static void     aac_describe_controller(struct aac_softc *sc);
 181 static char     *aac_describe_code(struct aac_code_lookup *table,
 182                                    u_int32_t code);
 183
 184 /* Management Interface */
 185 static d_open_t         aac_open;
 186 static d_ioctl_t        aac_ioctl;
 187 static d_poll_t         aac_poll;
 188 #if __FreeBSD_version >= 702000
 189 static void             aac_cdevpriv_dtor(void *arg);
 190 #else
 191 static d_close_t        aac_close;
 192 #endif
 193 static int      aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib);
 194 static int      aac_ioctl_send_raw_srb(struct aac_softc *sc, caddr_t arg);
 195 static void     aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib);
 196 static void     aac_request_aif(struct aac_softc *sc);
 197 static int      aac_rev_check(struct aac_softc *sc, caddr_t udata);
 198 static int      aac_open_aif(struct aac_softc *sc, caddr_t arg);
 199 static int      aac_close_aif(struct aac_softc *sc, caddr_t arg);
 200 static int      aac_getnext_aif(struct aac_softc *sc, caddr_t arg);
 201 static int      aac_return_aif(struct aac_softc *sc,
 202                                struct aac_fib_context *ctx, caddr_t uptr);
 203 static int      aac_query_disk(struct aac_softc *sc, caddr_t uptr);
 204 static int      aac_get_pci_info(struct aac_softc *sc, caddr_t uptr);
 205 static int      aac_supported_features(struct aac_softc *sc, caddr_t uptr);
 206 static void     aac_ioctl_event(struct aac_softc *sc,
 207                                 struct aac_event *event, void *arg);
 208 static int      aac_reset_adapter(struct aac_softc *sc);
 209 static int      aac_get_container_info(struct aac_softc *sc,
 210                                        struct aac_fib *fib, int cid,
 211                                        struct aac_mntinforesp *mir,
 212                                        u_int32_t *uid);
 213 static u_int32_t
 214         aac_check_adapter_health(struct aac_softc *sc, u_int8_t *bled);
 215
 216 static struct cdevsw aacraid_cdevsw = {
 217         .d_version =    D_VERSION,
 218         .d_flags =      D_NEEDGIANT,
 219         .d_open =       aac_open,
 220 #if __FreeBSD_version < 702000
 221         .d_close =      aac_close,
 222 #endif
 223         .d_ioctl =      aac_ioctl,
 224         .d_poll =       aac_poll,
 225         .d_name =       "aacraid",
 226 };
 227
 228 MALLOC_DEFINE(M_AACRAIDBUF, "aacraid_buf", "Buffers for the AACRAID driver");
 229
 230 /* sysctl node */
 231 SYSCTL_NODE(_hw, OID_AUTO, aacraid, CTLFLAG_RD, 0, "AACRAID driver parameters");
 232
 233 /*
 234  * Device Interface
 235  */
 236
 237 /*
 238  * Initialize the controller and softc
 239  */
 240 int
 241 aacraid_attach(struct aac_softc *sc)
 242 {
 243         int error, unit;
 244         struct aac_fib *fib;
 245         struct aac_mntinforesp mir;
 246         int count = 0, i = 0;
 247         u_int32_t uid;
 248
 249         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 250         sc->hint_flags = device_get_flags(sc->aac_dev);
 251         /*
 252          * Initialize per-controller queues.
 253          */
 254         aac_initq_free(sc);
 255         aac_initq_ready(sc);
 256         aac_initq_busy(sc);
 257
 258         /* mark controller as suspended until we get ourselves organised */
 259         sc->aac_state |= AAC_STATE_SUSPEND;
 260
 261         /*
 262          * Check that the firmware on the card is supported.
 263          */
 264         sc->msi_enabled = FALSE;
 265         if ((error = aac_check_firmware(sc)) != 0)
 266                 return(error);
 267
 268         /*
 269          * Initialize locks
 270          */
 271         mtx_init(&sc->aac_io_lock, "AACRAID I/O lock", NULL, MTX_DEF);
 272         TAILQ_INIT(&sc->aac_container_tqh);
 273         TAILQ_INIT(&sc->aac_ev_cmfree);
 274
 275 #if __FreeBSD_version >= 800000
 276         /* Initialize the clock daemon callout. */
 277         callout_init_mtx(&sc->aac_daemontime, &sc->aac_io_lock, 0);
 278 #endif
 279         /*
 280          * Initialize the adapter.
 281          */
 282         if ((error = aac_alloc(sc)) != 0)
 283                 return(error);
 284         if (!(sc->flags & AAC_FLAGS_SYNC_MODE)) {
 285                 aac_define_int_mode(sc);
 286                 if ((error = aac_init(sc)) != 0)
 287                         return(error);
 288         }
 289
 290         /*
 291          * Allocate and connect our interrupt.
 292          */
 293         if ((error = aac_setup_intr(sc)) != 0)
 294                 return(error);
 295
 296         /*
 297          * Print a little information about the controller.
 298          */
 299         aac_describe_controller(sc);
 300
 301         /*
 302          * Make the control device.
 303          */
 304         unit = device_get_unit(sc->aac_dev);
 305         sc->aac_dev_t = make_dev(&aacraid_cdevsw, unit, UID_ROOT, GID_OPERATOR,
 306                                  0640, "aacraid%d", unit);
 307         sc->aac_dev_t->si_drv1 = sc;
 308
 309         /* Create the AIF thread */
 310         if (aac_kthread_create((void(*)(void *))aac_command_thread, sc,
 311                    &sc->aifthread, 0, 0, "aacraid%daif", unit))
 312                 panic("Could not create AIF thread");
 313
 314         /* Register the shutdown method to only be called post-dump */
 315         if ((sc->eh = EVENTHANDLER_REGISTER(shutdown_final, aacraid_shutdown,
 316             sc->aac_dev, SHUTDOWN_PRI_DEFAULT)) == NULL)
 317                 device_printf(sc->aac_dev,
 318                               "shutdown event registration failed\n");
 319
 320         /* Find containers */
 321         mtx_lock(&sc->aac_io_lock);
 322         aac_alloc_sync_fib(sc, &fib);
 323         /* loop over possible containers */
 324         do {
 325                 if ((aac_get_container_info(sc, fib, i, &mir, &uid)) != 0)
 326                         continue;
 327                 if (i == 0)
 328                         count = mir.MntRespCount;
 329                 aac_add_container(sc, &mir, 0, uid);
 330                 i++;
 331         } while ((i < count) && (i < AAC_MAX_CONTAINERS));
 332         aac_release_sync_fib(sc);
 333         mtx_unlock(&sc->aac_io_lock);
 334
 335         /* Register with CAM for the containers */
 336         TAILQ_INIT(&sc->aac_sim_tqh);
 337         aac_container_bus(sc);
 338         /* Register with CAM for the non-DASD devices */
 339         if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0)
 340                 aac_get_bus_info(sc);
 341
 342         /* poke the bus to actually attach the child devices */
 343         bus_generic_attach(sc->aac_dev);
 344
 345         /* mark the controller up */
 346         sc->aac_state &= ~AAC_STATE_SUSPEND;
 347
 348         /* enable interrupts now */
 349         AAC_ACCESS_DEVREG(sc, AAC_ENABLE_INTERRUPT);
 350
 351 #if __FreeBSD_version >= 800000
 352         mtx_lock(&sc->aac_io_lock);
 353         callout_reset(&sc->aac_daemontime, 60 * hz, aac_daemon, sc);
 354         mtx_unlock(&sc->aac_io_lock);
 355 #else
 356         {
 357                 struct timeval tv;
 358                 tv.tv_sec = 60;
 359                 tv.tv_usec = 0;
 360                 sc->timeout_id = timeout(aac_daemon, (void *)sc, tvtohz(&tv));
 361         }
 362 #endif
 363
 364         return(0);
 365 }
 366
 367 static void
 368 aac_daemon(void *arg)
 369 {
 370         struct aac_softc *sc;
 371         struct timeval tv;
 372         struct aac_command *cm;
 373         struct aac_fib *fib;
 374
 375         sc = arg;
 376         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 377
 378 #if __FreeBSD_version >= 800000
 379         mtx_assert(&sc->aac_io_lock, MA_OWNED);
 380         if (callout_pending(&sc->aac_daemontime) ||
 381             callout_active(&sc->aac_daemontime) == 0)
 382                 return;
 383 #else
 384         mtx_lock(&sc->aac_io_lock);
 385 #endif
 386         getmicrotime(&tv);
 387
 388         if (!aacraid_alloc_command(sc, &cm)) {
 389                 fib = cm->cm_fib;
 390                 cm->cm_timestamp = time_uptime;
 391                 cm->cm_datalen = 0;
 392                 cm->cm_flags |= AAC_CMD_WAIT;
 393
 394                 fib->Header.Size =
 395                         sizeof(struct aac_fib_header) + sizeof(u_int32_t);
 396                 fib->Header.XferState =
 397                         AAC_FIBSTATE_HOSTOWNED   |
 398                         AAC_FIBSTATE_INITIALISED |
 399                         AAC_FIBSTATE_EMPTY       |
 400                         AAC_FIBSTATE_FROMHOST    |
 401                         AAC_FIBSTATE_REXPECTED   |
 402                         AAC_FIBSTATE_NORM        |
 403                         AAC_FIBSTATE_ASYNC       |
 404                         AAC_FIBSTATE_FAST_RESPONSE;
 405                 fib->Header.Command = SendHostTime;
 406                 *(uint32_t *)fib->data = tv.tv_sec;
 407
 408                 aacraid_map_command_sg(cm, NULL, 0, 0);
 409                 aacraid_release_command(cm);
 410         }
 411
 412 #if __FreeBSD_version >= 800000
 413         callout_schedule(&sc->aac_daemontime, 30 * 60 * hz);
 414 #else
 415         mtx_unlock(&sc->aac_io_lock);
 416         tv.tv_sec = 30 * 60;
 417         tv.tv_usec = 0;
 418         sc->timeout_id = timeout(aac_daemon, (void *)sc, tvtohz(&tv));
 419 #endif
 420 }
 421
 422 void
 423 aacraid_add_event(struct aac_softc *sc, struct aac_event *event)
 424 {
 425
 426         switch (event->ev_type & AAC_EVENT_MASK) {
 427         case AAC_EVENT_CMFREE:
 428                 TAILQ_INSERT_TAIL(&sc->aac_ev_cmfree, event, ev_links);
 429                 break;
 430         default:
 431                 device_printf(sc->aac_dev, "aac_add event: unknown event %d\n",
 432                     event->ev_type);
 433                 break;
 434         }
 435
 436         return;
 437 }
 438
 439 /*
 440  * Request information of container #cid
 441  */
 442 static int
 443 aac_get_container_info(struct aac_softc *sc, struct aac_fib *sync_fib, int cid,
 444                        struct aac_mntinforesp *mir, u_int32_t *uid)
 445 {
 446         struct aac_command *cm;
 447         struct aac_fib *fib;
 448         struct aac_mntinfo *mi;
 449         struct aac_cnt_config *ccfg;
 450         int rval;
 451
 452         if (sync_fib == NULL) {
 453                 if (aacraid_alloc_command(sc, &cm)) {
 454                         device_printf(sc->aac_dev,
 455                                 "Warning, no free command available\n");
 456                         return (-1);
 457                 }
 458                 fib = cm->cm_fib;
 459         } else {
 460                 fib = sync_fib;
 461         }
 462
 463         mi = (struct aac_mntinfo *)&fib->data[0];
 464         /* 4KB support?, 64-bit LBA? */
 465         if (sc->aac_support_opt2 & AAC_SUPPORTED_VARIABLE_BLOCK_SIZE)
 466                 mi->Command = VM_NameServeAllBlk;
 467         else if (sc->flags & AAC_FLAGS_LBA_64BIT)
 468                 mi->Command = VM_NameServe64;
 469         else
 470                 mi->Command = VM_NameServe;
 471         mi->MntType = FT_FILESYS;
 472         mi->MntCount = cid;
 473
 474         if (sync_fib) {
 475                 if (aac_sync_fib(sc, ContainerCommand, 0, fib,
 476                          sizeof(struct aac_mntinfo))) {
 477                         device_printf(sc->aac_dev, "Error probing container %d\n", cid);
 478                         return (-1);
 479                 }
 480         } else {
 481                 cm->cm_timestamp = time_uptime;
 482                 cm->cm_datalen = 0;
 483
 484                 fib->Header.Size =
 485                         sizeof(struct aac_fib_header) + sizeof(struct aac_mntinfo);
 486                 fib->Header.XferState =
 487                         AAC_FIBSTATE_HOSTOWNED   |
 488                         AAC_FIBSTATE_INITIALISED |
 489                         AAC_FIBSTATE_EMPTY       |
 490                         AAC_FIBSTATE_FROMHOST    |
 491                         AAC_FIBSTATE_REXPECTED   |
 492                         AAC_FIBSTATE_NORM        |
 493                         AAC_FIBSTATE_ASYNC       |
 494                         AAC_FIBSTATE_FAST_RESPONSE;
 495                 fib->Header.Command = ContainerCommand;
 496                 if (aacraid_wait_command(cm) != 0) {
 497                         device_printf(sc->aac_dev, "Error probing container %d\n", cid);
 498                         aacraid_release_command(cm);
 499                         return (-1);
 500                 }
 501         }
 502         bcopy(&fib->data[0], mir, sizeof(struct aac_mntinforesp));
 503
 504         /* UID */
 505         *uid = cid;
 506         if (mir->MntTable[0].VolType != CT_NONE &&
 507                 !(mir->MntTable[0].ContentState & AAC_FSCS_HIDDEN)) {
 508                 if (!(sc->aac_support_opt2 & AAC_SUPPORTED_VARIABLE_BLOCK_SIZE)) {
 509                         mir->MntTable[0].ObjExtension.BlockDevice.BlockSize = 0x200;
 510                         mir->MntTable[0].ObjExtension.BlockDevice.bdLgclPhysMap = 0;
 511                 }
 512                 ccfg = (struct aac_cnt_config *)&fib->data[0];
 513                 bzero(ccfg, sizeof (*ccfg) - CT_PACKET_SIZE);
 514                 ccfg->Command = VM_ContainerConfig;
 515                 ccfg->CTCommand.command = CT_CID_TO_32BITS_UID;
 516                 ccfg->CTCommand.param[0] = cid;
 517
 518                 if (sync_fib) {
 519                         rval = aac_sync_fib(sc, ContainerCommand, 0, fib,
 520                                 sizeof(struct aac_cnt_config));
 521                         if (rval == 0 && ccfg->Command == ST_OK &&
 522                                 ccfg->CTCommand.param[0] == CT_OK &&
 523                                 mir->MntTable[0].VolType != CT_PASSTHRU)
 524                                 *uid = ccfg->CTCommand.param[1];
 525                 } else {
 526                         fib->Header.Size =
 527                                 sizeof(struct aac_fib_header) + sizeof(struct aac_cnt_config);
 528                         fib->Header.XferState =
 529                                 AAC_FIBSTATE_HOSTOWNED   |
 530                                 AAC_FIBSTATE_INITIALISED |
 531                                 AAC_FIBSTATE_EMPTY       |
 532                                 AAC_FIBSTATE_FROMHOST    |
 533                                 AAC_FIBSTATE_REXPECTED   |
 534                                 AAC_FIBSTATE_NORM        |
 535                                 AAC_FIBSTATE_ASYNC       |
 536                                 AAC_FIBSTATE_FAST_RESPONSE;
 537                         fib->Header.Command = ContainerCommand;
 538                         rval = aacraid_wait_command(cm);
 539                         if (rval == 0 && ccfg->Command == ST_OK &&
 540                                 ccfg->CTCommand.param[0] == CT_OK &&
 541                                 mir->MntTable[0].VolType != CT_PASSTHRU)
 542                                 *uid = ccfg->CTCommand.param[1];
 543                         aacraid_release_command(cm);
 544                 }
 545         }
 546
 547         return (0);
 548 }
 549
 550 /*
 551  * Create a device to represent a new container
 552  */
 553 static void
 554 aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f,
 555                   u_int32_t uid)
 556 {
 557         struct aac_container *co;
 558
 559         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 560
 561         /*
 562          * Check container volume type for validity.  Note that many of
 563          * the possible types may never show up.
 564          */
 565         if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) {
 566                 co = (struct aac_container *)malloc(sizeof *co, M_AACRAIDBUF,
 567                        M_NOWAIT | M_ZERO);
 568                 if (co == NULL) {
 569                         panic("Out of memory?!");
 570                 }
 571
 572                 co->co_found = f;
 573                 bcopy(&mir->MntTable[0], &co->co_mntobj,
 574                       sizeof(struct aac_mntobj));
 575                 co->co_uid = uid;
 576                 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link);
 577         }
 578 }
 579
 580 /*
 581  * Allocate resources associated with (sc)
 582  */
 583 static int
 584 aac_alloc(struct aac_softc *sc)
 585 {
 586         bus_size_t maxsize;
 587
 588         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 589
 590         /*
 591          * Create DMA tag for mapping buffers into controller-addressable space.
 592          */
 593         if (bus_dma_tag_create(sc->aac_parent_dmat,     /* parent */
 594                                1, 0,                    /* algnmnt, boundary */
 595                                (sc->flags & AAC_FLAGS_SG_64BIT) ?
 596                                BUS_SPACE_MAXADDR :
 597                                BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
 598                                BUS_SPACE_MAXADDR,       /* highaddr */
 599                                NULL, NULL,              /* filter, filterarg */
 600                                sc->aac_max_sectors << 9, /* maxsize */
 601                                sc->aac_sg_tablesize,    /* nsegments */
 602                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
 603                                BUS_DMA_ALLOCNOW,        /* flags */
 604                                busdma_lock_mutex,       /* lockfunc */
 605                                &sc->aac_io_lock,        /* lockfuncarg */
 606                                &sc->aac_buffer_dmat)) {
 607                 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n");
 608                 return (ENOMEM);
 609         }
 610
 611         /*
 612          * Create DMA tag for mapping FIBs into controller-addressable space..
 613          */
 614         if (sc->flags & AAC_FLAGS_NEW_COMM_TYPE1)
 615                 maxsize = sc->aac_max_fibs_alloc * (sc->aac_max_fib_size +
 616                         sizeof(struct aac_fib_xporthdr) + 31);
 617         else
 618                 maxsize = sc->aac_max_fibs_alloc * (sc->aac_max_fib_size + 31);
 619         if (bus_dma_tag_create(sc->aac_parent_dmat,     /* parent */
 620                                1, 0,                    /* algnmnt, boundary */
 621                                (sc->flags & AAC_FLAGS_4GB_WINDOW) ?
 622                                BUS_SPACE_MAXADDR_32BIT :
 623                                0x7fffffff,              /* lowaddr */
 624                                BUS_SPACE_MAXADDR,       /* highaddr */
 625                                NULL, NULL,              /* filter, filterarg */
 626                                maxsize,                 /* maxsize */
 627                                1,                       /* nsegments */
 628                                maxsize,                 /* maxsize */
 629                                0,                       /* flags */
 630                                NULL, NULL,              /* No locking needed */
 631                                &sc->aac_fib_dmat)) {
 632                 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");
 633                 return (ENOMEM);
 634         }
 635
 636         /*
 637          * Create DMA tag for the common structure and allocate it.
 638          */
 639         maxsize = sizeof(struct aac_common);
 640         maxsize += sc->aac_max_fibs * sizeof(u_int32_t);
 641         if (bus_dma_tag_create(sc->aac_parent_dmat,     /* parent */
 642                                1, 0,                    /* algnmnt, boundary */
 643                                (sc->flags & AAC_FLAGS_4GB_WINDOW) ?
 644                                BUS_SPACE_MAXADDR_32BIT :
 645                                0x7fffffff,              /* lowaddr */
 646                                BUS_SPACE_MAXADDR,       /* highaddr */
 647                                NULL, NULL,              /* filter, filterarg */
 648                                maxsize,                 /* maxsize */
 649                                1,                       /* nsegments */
 650                                maxsize,                 /* maxsegsize */
 651                                0,                       /* flags */
 652                                NULL, NULL,              /* No locking needed */
 653                                &sc->aac_common_dmat)) {
 654                 device_printf(sc->aac_dev,
 655                               "can't allocate common structure DMA tag\n");
 656                 return (ENOMEM);
 657         }
 658         if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common,
 659                              BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) {
 660                 device_printf(sc->aac_dev, "can't allocate common structure\n");
 661                 return (ENOMEM);
 662         }
 663
 664         (void)bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap,
 665                         sc->aac_common, maxsize,
 666                         aac_common_map, sc, 0);
 667         bzero(sc->aac_common, maxsize);
 668
 669         /* Allocate some FIBs and associated command structs */
 670         TAILQ_INIT(&sc->aac_fibmap_tqh);
 671         sc->aac_commands = malloc(sc->aac_max_fibs * sizeof(struct aac_command),
 672                                   M_AACRAIDBUF, M_WAITOK|M_ZERO);
 673         mtx_lock(&sc->aac_io_lock);
 674         while (sc->total_fibs < sc->aac_max_fibs) {
 675                 if (aac_alloc_commands(sc) != 0)
 676                         break;
 677         }
 678         mtx_unlock(&sc->aac_io_lock);
 679         if (sc->total_fibs == 0)
 680                 return (ENOMEM);
 681
 682         return (0);
 683 }
 684
 685 /*
 686  * Free all of the resources associated with (sc)
 687  *
 688  * Should not be called if the controller is active.
 689  */
 690 void
 691 aacraid_free(struct aac_softc *sc)
 692 {
 693         int i;
 694
 695         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 696
 697         /* remove the control device */
 698         if (sc->aac_dev_t != NULL)
 699                 destroy_dev(sc->aac_dev_t);
 700
 701         /* throw away any FIB buffers, discard the FIB DMA tag */
 702         aac_free_commands(sc);
 703         if (sc->aac_fib_dmat)
 704                 bus_dma_tag_destroy(sc->aac_fib_dmat);
 705
 706         free(sc->aac_commands, M_AACRAIDBUF);
 707
 708         /* destroy the common area */
 709         if (sc->aac_common) {
 710                 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap);
 711                 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common,
 712                                 sc->aac_common_dmamap);
 713         }
 714         if (sc->aac_common_dmat)
 715                 bus_dma_tag_destroy(sc->aac_common_dmat);
 716
 717         /* disconnect the interrupt handler */
 718         for (i = 0; i < AAC_MAX_MSIX; ++i) {
 719                 if (sc->aac_intr[i])
 720                         bus_teardown_intr(sc->aac_dev,
 721                                 sc->aac_irq[i], sc->aac_intr[i]);
 722                 if (sc->aac_irq[i])
 723                         bus_release_resource(sc->aac_dev, SYS_RES_IRQ,
 724                                 sc->aac_irq_rid[i], sc->aac_irq[i]);
 725                 else
 726                         break;
 727         }
 728         if (sc->msi_enabled)
 729                 pci_release_msi(sc->aac_dev);
 730
 731         /* destroy data-transfer DMA tag */
 732         if (sc->aac_buffer_dmat)
 733                 bus_dma_tag_destroy(sc->aac_buffer_dmat);
 734
 735         /* destroy the parent DMA tag */
 736         if (sc->aac_parent_dmat)
 737                 bus_dma_tag_destroy(sc->aac_parent_dmat);
 738
 739         /* release the register window mapping */
 740         if (sc->aac_regs_res0 != NULL)
 741                 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY,
 742                                      sc->aac_regs_rid0, sc->aac_regs_res0);
 743         if (sc->aac_regs_res1 != NULL)
 744                 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY,
 745                                      sc->aac_regs_rid1, sc->aac_regs_res1);
 746 }
 747
 748 /*
 749  * Disconnect from the controller completely, in preparation for unload.
 750  */
 751 int
 752 aacraid_detach(device_t dev)
 753 {
 754         struct aac_softc *sc;
 755         struct aac_container *co;
 756         struct aac_sim  *sim;
 757         int error;
 758
 759         sc = device_get_softc(dev);
 760         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 761
 762 #if __FreeBSD_version >= 800000
 763         callout_drain(&sc->aac_daemontime);
 764 #else
 765         untimeout(aac_daemon, (void *)sc, sc->timeout_id);
 766 #endif
 767         /* Remove the child containers */
 768         while ((co = TAILQ_FIRST(&sc->aac_container_tqh)) != NULL) {
 769                 TAILQ_REMOVE(&sc->aac_container_tqh, co, co_link);
 770                 free(co, M_AACRAIDBUF);
 771         }
 772
 773         /* Remove the CAM SIMs */
 774         while ((sim = TAILQ_FIRST(&sc->aac_sim_tqh)) != NULL) {
 775                 TAILQ_REMOVE(&sc->aac_sim_tqh, sim, sim_link);
 776                 error = device_delete_child(dev, sim->sim_dev);
 777                 if (error)
 778                         return (error);
 779                 free(sim, M_AACRAIDBUF);
 780         }
 781
 782         if (sc->aifflags & AAC_AIFFLAGS_RUNNING) {
 783                 sc->aifflags |= AAC_AIFFLAGS_EXIT;
 784                 wakeup(sc->aifthread);
 785                 tsleep(sc->aac_dev, PUSER | PCATCH, "aac_dch", 30 * hz);
 786         }
 787
 788         if (sc->aifflags & AAC_AIFFLAGS_RUNNING)
 789                 panic("Cannot shutdown AIF thread");
 790
 791         if ((error = aacraid_shutdown(dev)))
 792                 return(error);
 793
 794         EVENTHANDLER_DEREGISTER(shutdown_final, sc->eh);
 795
 796         aacraid_free(sc);
 797
 798         mtx_destroy(&sc->aac_io_lock);
 799
 800         return(0);
 801 }
 802
 803 /*
 804  * Bring the controller down to a dormant state and detach all child devices.
 805  *
 806  * This function is called before detach or system shutdown.
 807  *
 808  * Note that we can assume that the bioq on the controller is empty, as we won't
 809  * allow shutdown if any device is open.
 810  */
 811 int
 812 aacraid_shutdown(device_t dev)
 813 {
 814         struct aac_softc *sc;
 815         struct aac_fib *fib;
 816         struct aac_close_command *cc;
 817
 818         sc = device_get_softc(dev);
 819         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 820
 821         sc->aac_state |= AAC_STATE_SUSPEND;
 822
 823         /*
 824          * Send a Container shutdown followed by a HostShutdown FIB to the
 825          * controller to convince it that we don't want to talk to it anymore.
 826          * We've been closed and all I/O completed already
 827          */
 828         device_printf(sc->aac_dev, "shutting down controller...");
 829
 830         mtx_lock(&sc->aac_io_lock);
 831         aac_alloc_sync_fib(sc, &fib);
 832         cc = (struct aac_close_command *)&fib->data[0];
 833
 834         bzero(cc, sizeof(struct aac_close_command));
 835         cc->Command = VM_CloseAll;
 836         cc->ContainerId = 0xfffffffe;
 837         if (aac_sync_fib(sc, ContainerCommand, 0, fib,
 838             sizeof(struct aac_close_command)))
 839                 printf("FAILED.\n");
 840         else
 841                 printf("done\n");
 842
 843         AAC_ACCESS_DEVREG(sc, AAC_DISABLE_INTERRUPT);
 844         aac_release_sync_fib(sc);
 845         mtx_unlock(&sc->aac_io_lock);
 846
 847         return(0);
 848 }
 849
 850 /*
 851  * Bring the controller to a quiescent state, ready for system suspend.
 852  */
 853 int
 854 aacraid_suspend(device_t dev)
 855 {
 856         struct aac_softc *sc;
 857
 858         sc = device_get_softc(dev);
 859
 860         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 861         sc->aac_state |= AAC_STATE_SUSPEND;
 862
 863         AAC_ACCESS_DEVREG(sc, AAC_DISABLE_INTERRUPT);
 864         return(0);
 865 }
 866
 867 /*
 868  * Bring the controller back to a state ready for operation.
 869  */
 870 int
 871 aacraid_resume(device_t dev)
 872 {
 873         struct aac_softc *sc;
 874
 875         sc = device_get_softc(dev);
 876
 877         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 878         sc->aac_state &= ~AAC_STATE_SUSPEND;
 879         AAC_ACCESS_DEVREG(sc, AAC_ENABLE_INTERRUPT);
 880         return(0);
 881 }
 882
 883 /*
 884  * Interrupt handler for NEW_COMM_TYPE1, NEW_COMM_TYPE2, NEW_COMM_TYPE34 interface.
 885  */
 886 void
 887 aacraid_new_intr_type1(void *arg)
 888 {
 889         struct aac_msix_ctx *ctx;
 890         struct aac_softc *sc;
 891         int vector_no;
 892         struct aac_command *cm;
 893         struct aac_fib *fib;
 894         u_int32_t bellbits, bellbits_shifted, index, handle;
 895         int isFastResponse, isAif, noMoreAif, mode;
 896
 897         ctx = (struct aac_msix_ctx *)arg;
 898         sc = ctx->sc;
 899         vector_no = ctx->vector_no;
 900
 901         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 902         mtx_lock(&sc->aac_io_lock);
 903
 904         if (sc->msi_enabled) {
 905                 mode = AAC_INT_MODE_MSI;
 906                 if (vector_no == 0) {
 907                         bellbits = AAC_MEM0_GETREG4(sc, AAC_SRC_ODBR_MSI);
 908                         if (bellbits & 0x40000)
 909                                 mode |= AAC_INT_MODE_AIF;
 910                         else if (bellbits & 0x1000)
 911                                 mode |= AAC_INT_MODE_SYNC;
 912                 }
 913         } else {
 914                 mode = AAC_INT_MODE_INTX;
 915                 bellbits = AAC_MEM0_GETREG4(sc, AAC_SRC_ODBR_R);
 916                 if (bellbits & AAC_DB_RESPONSE_SENT_NS) {
 917                         bellbits = AAC_DB_RESPONSE_SENT_NS;
 918                         AAC_MEM0_SETREG4(sc, AAC_SRC_ODBR_C, bellbits);
 919                 } else {
 920                         bellbits_shifted = (bellbits >> AAC_SRC_ODR_SHIFT);
 921                         AAC_MEM0_SETREG4(sc, AAC_SRC_ODBR_C, bellbits);
 922                         if (bellbits_shifted & AAC_DB_AIF_PENDING)
 923                                 mode |= AAC_INT_MODE_AIF;
 924                         else if (bellbits_shifted & AAC_DB_SYNC_COMMAND)
 925                                 mode |= AAC_INT_MODE_SYNC;
 926                 }
 927                 /* ODR readback, Prep #238630 */
 928                 AAC_MEM0_GETREG4(sc, AAC_SRC_ODBR_R);
 929         }
 930
 931         if (mode & AAC_INT_MODE_SYNC) {
 932                 if (sc->aac_sync_cm) {
 933                         cm = sc->aac_sync_cm;
 934                         cm->cm_flags |= AAC_CMD_COMPLETED;
 935                         /* is there a completion handler? */
 936                         if (cm->cm_complete != NULL) {
 937                                 cm->cm_complete(cm);
 938                         } else {
 939                                 /* assume that someone is sleeping on this command */
 940                                 wakeup(cm);
 941                         }
 942                         sc->flags &= ~AAC_QUEUE_FRZN;
 943                         sc->aac_sync_cm = NULL;
 944                 }
 945                 mode = 0;
 946         }
 947
 948         if (mode & AAC_INT_MODE_AIF) {
 949                 if (mode & AAC_INT_MODE_INTX) {
 950                         aac_request_aif(sc);
 951                         mode = 0;
 952                 }
 953         }
 954
 955         if (mode) {
 956                 /* handle async. status */
 957                 index = sc->aac_host_rrq_idx[vector_no];
 958                 for (;;) {
 959                         isFastResponse = isAif = noMoreAif = 0;
 960                         /* remove toggle bit (31) */
 961                         handle = (sc->aac_common->ac_host_rrq[index] & 0x7fffffff);
 962                         /* check fast response bit (30) */
 963                         if (handle & 0x40000000)
 964                                 isFastResponse = 1;
 965                         /* check AIF bit (23) */
 966                         else if (handle & 0x00800000)
 967                                 isAif = TRUE;
 968                         handle &= 0x0000ffff;
 969                         if (handle == 0)
 970                                 break;
 971
 972                         cm = sc->aac_commands + (handle - 1);
 973                         fib = cm->cm_fib;
 974                         sc->aac_rrq_outstanding[vector_no]--;
 975                         if (isAif) {
 976                                 noMoreAif = (fib->Header.XferState & AAC_FIBSTATE_NOMOREAIF) ? 1:0;
 977                                 if (!noMoreAif)
 978                                         aac_handle_aif(sc, fib);
 979                                 aac_remove_busy(cm);
 980                                 aacraid_release_command(cm);
 981                         } else {
 982                                 if (isFastResponse) {
 983                                         fib->Header.XferState |= AAC_FIBSTATE_DONEADAP;
 984                                         *((u_int32_t *)(fib->data)) = ST_OK;
 985                                         cm->cm_flags |= AAC_CMD_FASTRESP;
 986                                 }
 987                                 aac_remove_busy(cm);
 988                                 aac_unmap_command(cm);
 989                                 cm->cm_flags |= AAC_CMD_COMPLETED;
 990
 991                                 /* is there a completion handler? */
 992                                 if (cm->cm_complete != NULL) {
 993                                         cm->cm_complete(cm);
 994                                 } else {
 995                                         /* assume that someone is sleeping on this command */
 996                                         wakeup(cm);
 997                                 }
 998                                 sc->flags &= ~AAC_QUEUE_FRZN;
 999                         }
1000
1001                         sc->aac_common->ac_host_rrq[index++] = 0;
1002                         if (index == (vector_no + 1) * sc->aac_vector_cap)
1003                                 index = vector_no * sc->aac_vector_cap;
1004                         sc->aac_host_rrq_idx[vector_no] = index;
1005
1006                         if ((isAif && !noMoreAif) || sc->aif_pending)
1007                                 aac_request_aif(sc);
1008                 }
1009         }
1010
1011         if (mode & AAC_INT_MODE_AIF) {
1012                 aac_request_aif(sc);
1013                 AAC_ACCESS_DEVREG(sc, AAC_CLEAR_AIF_BIT);
1014                 mode = 0;
1015         }
1016
1017         /* see if we can start some more I/O */
1018         if ((sc->flags & AAC_QUEUE_FRZN) == 0)
1019                 aacraid_startio(sc);
1020         mtx_unlock(&sc->aac_io_lock);
1021 }
1022
1023 /*
1024  * Handle notification of one or more FIBs coming from the controller.
1025  */
1026 static void
1027 aac_command_thread(struct aac_softc *sc)
1028 {
1029         int retval;
1030
1031         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1032
1033         mtx_lock(&sc->aac_io_lock);
1034         sc->aifflags = AAC_AIFFLAGS_RUNNING;
1035
1036         while ((sc->aifflags & AAC_AIFFLAGS_EXIT) == 0) {
1037
1038                 retval = 0;
1039                 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0)
1040                         retval = msleep(sc->aifthread, &sc->aac_io_lock, PRIBIO,
1041                                         "aacraid_aifthd", AAC_PERIODIC_INTERVAL * hz);
1042
1043                 /*
1044                  * First see if any FIBs need to be allocated.  This needs
1045                  * to be called without the driver lock because contigmalloc
1046                  * will grab Giant, and would result in an LOR.
1047                  */
1048                 if ((sc->aifflags & AAC_AIFFLAGS_ALLOCFIBS) != 0) {
1049                         aac_alloc_commands(sc);
1050                         sc->aifflags &= ~AAC_AIFFLAGS_ALLOCFIBS;
1051                         aacraid_startio(sc);
1052                 }
1053
1054                 /*
1055                  * While we're here, check to see if any commands are stuck.
1056                  * This is pretty low-priority, so it's ok if it doesn't
1057                  * always fire.
1058                  */
1059                 if (retval == EWOULDBLOCK)
1060                         aac_timeout(sc);
1061
1062                 /* Check the hardware printf message buffer */
1063                 if (sc->aac_common->ac_printf[0] != 0)
1064                         aac_print_printf(sc);
1065         }
1066         sc->aifflags &= ~AAC_AIFFLAGS_RUNNING;
1067         mtx_unlock(&sc->aac_io_lock);
1068         wakeup(sc->aac_dev);
1069
1070         aac_kthread_exit(0);
1071 }
1072
1073 /*
1074  * Submit a command to the controller, return when it completes.
1075  * XXX This is very dangerous!  If the card has gone out to lunch, we could
1076  *     be stuck here forever.  At the same time, signals are not caught
1077  *     because there is a risk that a signal could wakeup the sleep before
1078  *     the card has a chance to complete the command.  Since there is no way
1079  *     to cancel a command that is in progress, we can't protect against the
1080  *     card completing a command late and spamming the command and data
1081  *     memory.  So, we are held hostage until the command completes.
1082  */
1083 int
1084 aacraid_wait_command(struct aac_command *cm)
1085 {
1086         struct aac_softc *sc;
1087         int error;
1088
1089         sc = cm->cm_sc;
1090         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1091         mtx_assert(&sc->aac_io_lock, MA_OWNED);
1092
1093         /* Put the command on the ready queue and get things going */
1094         aac_enqueue_ready(cm);
1095         aacraid_startio(sc);
1096         error = msleep(cm, &sc->aac_io_lock, PRIBIO, "aacraid_wait", 0);
1097         return(error);
1098 }
1099
1100 /*
1101  *Command Buffer Management
1102  */
1103
1104 /*
1105  * Allocate a command.
1106  */
1107 int
1108 aacraid_alloc_command(struct aac_softc *sc, struct aac_command **cmp)
1109 {
1110         struct aac_command *cm;
1111
1112         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1113
1114         if ((cm = aac_dequeue_free(sc)) == NULL) {
1115                 if (sc->total_fibs < sc->aac_max_fibs) {
1116                         sc->aifflags |= AAC_AIFFLAGS_ALLOCFIBS;
1117                         wakeup(sc->aifthread);
1118                 }
1119                 return (EBUSY);
1120         }
1121
1122         *cmp = cm;
1123         return(0);
1124 }
1125
1126 /*
1127  * Release a command back to the freelist.
1128  */
1129 void
1130 aacraid_release_command(struct aac_command *cm)
1131 {
1132         struct aac_event *event;
1133         struct aac_softc *sc;
1134
1135         sc = cm->cm_sc;
1136         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1137         mtx_assert(&sc->aac_io_lock, MA_OWNED);
1138
1139         /* (re)initialize the command/FIB */
1140         cm->cm_sgtable = NULL;
1141         cm->cm_flags = 0;
1142         cm->cm_complete = NULL;
1143         cm->cm_ccb = NULL;
1144         cm->cm_passthr_dmat = 0;
1145         cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY;
1146         cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB;
1147         cm->cm_fib->Header.Unused = 0;
1148         cm->cm_fib->Header.SenderSize = cm->cm_sc->aac_max_fib_size;
1149
1150         /*
1151          * These are duplicated in aac_start to cover the case where an
1152          * intermediate stage may have destroyed them.  They're left
1153          * initialized here for debugging purposes only.
1154          */
1155         cm->cm_fib->Header.u.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys;
1156         cm->cm_fib->Header.Handle = 0;
1157
1158         aac_enqueue_free(cm);
1159
1160         /*
1161          * Dequeue all events so that there's no risk of events getting
1162          * stranded.
1163          */
1164         while ((event = TAILQ_FIRST(&sc->aac_ev_cmfree)) != NULL) {
1165                 TAILQ_REMOVE(&sc->aac_ev_cmfree, event, ev_links);
1166                 event->ev_callback(sc, event, event->ev_arg);
1167         }
1168 }
1169
1170 /*
1171  * Map helper for command/FIB allocation.
1172  */
1173 static void
1174 aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1175 {
1176         uint64_t        *fibphys;
1177
1178         fibphys = (uint64_t *)arg;
1179
1180         *fibphys = segs[0].ds_addr;
1181 }
1182
1183 /*
1184  * Allocate and initialize commands/FIBs for this adapter.
1185  */
1186 static int
1187 aac_alloc_commands(struct aac_softc *sc)
1188 {
1189         struct aac_command *cm;
1190         struct aac_fibmap *fm;
1191         uint64_t fibphys;
1192         int i, error;
1193         u_int32_t maxsize;
1194
1195         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1196         mtx_assert(&sc->aac_io_lock, MA_OWNED);
1197
1198         if (sc->total_fibs + sc->aac_max_fibs_alloc > sc->aac_max_fibs)
1199                 return (ENOMEM);
1200
1201         fm = malloc(sizeof(struct aac_fibmap), M_AACRAIDBUF, M_NOWAIT|M_ZERO);
1202         if (fm == NULL)
1203                 return (ENOMEM);
1204
1205         mtx_unlock(&sc->aac_io_lock);
1206         /* allocate the FIBs in DMAable memory and load them */
1207         if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&fm->aac_fibs,
1208                              BUS_DMA_NOWAIT, &fm->aac_fibmap)) {
1209                 device_printf(sc->aac_dev,
1210                               "Not enough contiguous memory available.\n");
1211                 free(fm, M_AACRAIDBUF);
1212                 mtx_lock(&sc->aac_io_lock);
1213                 return (ENOMEM);
1214         }
1215
1216         maxsize = sc->aac_max_fib_size + 31;
1217         if (sc->flags & AAC_FLAGS_NEW_COMM_TYPE1)
1218                 maxsize += sizeof(struct aac_fib_xporthdr);
1219         /* Ignore errors since this doesn't bounce */
1220         (void)bus_dmamap_load(sc->aac_fib_dmat, fm->aac_fibmap, fm->aac_fibs,
1221                               sc->aac_max_fibs_alloc * maxsize,
1222                               aac_map_command_helper, &fibphys, 0);
1223         mtx_lock(&sc->aac_io_lock);
1224
1225         /* initialize constant fields in the command structure */
1226         bzero(fm->aac_fibs, sc->aac_max_fibs_alloc * maxsize);
1227         for (i = 0; i < sc->aac_max_fibs_alloc; i++) {
1228                 cm = sc->aac_commands + sc->total_fibs;
1229                 fm->aac_commands = cm;
1230                 cm->cm_sc = sc;
1231                 cm->cm_fib = (struct aac_fib *)
1232                         ((u_int8_t *)fm->aac_fibs + i * maxsize);
1233                 cm->cm_fibphys = fibphys + i * maxsize;
1234                 if (sc->flags & AAC_FLAGS_NEW_COMM_TYPE1) {
1235                         u_int64_t fibphys_aligned;
1236                         fibphys_aligned =
1237                                 (cm->cm_fibphys + sizeof(struct aac_fib_xporthdr) + 31) & ~31;
1238                         cm->cm_fib = (struct aac_fib *)
1239                                 ((u_int8_t *)cm->cm_fib + (fibphys_aligned - cm->cm_fibphys));
1240                         cm->cm_fibphys = fibphys_aligned;
1241                 } else {
1242                         u_int64_t fibphys_aligned;
1243                         fibphys_aligned = (cm->cm_fibphys + 31) & ~31;
1244                         cm->cm_fib = (struct aac_fib *)
1245                                 ((u_int8_t *)cm->cm_fib + (fibphys_aligned - cm->cm_fibphys));
1246                         cm->cm_fibphys = fibphys_aligned;
1247                 }
1248                 cm->cm_index = sc->total_fibs;
1249
1250                 if ((error = bus_dmamap_create(sc->aac_buffer_dmat, 0,
1251                                                &cm->cm_datamap)) != 0)
1252                         break;
1253                 if (sc->aac_max_fibs <= 1 || sc->aac_max_fibs - sc->total_fibs > 1)
1254                         aacraid_release_command(cm);
1255                 sc->total_fibs++;
1256         }
1257
1258         if (i > 0) {
1259                 TAILQ_INSERT_TAIL(&sc->aac_fibmap_tqh, fm, fm_link);
1260                 fwprintf(sc, HBA_FLAGS_DBG_COMM_B, "total_fibs= %d\n", sc->total_fibs);
1261                 return (0);
1262         }
1263
1264         bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap);
1265         bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap);
1266         free(fm, M_AACRAIDBUF);
1267         return (ENOMEM);
1268 }
1269
1270 /*
1271  * Free FIBs owned by this adapter.
1272  */
1273 static void
1274 aac_free_commands(struct aac_softc *sc)
1275 {
1276         struct aac_fibmap *fm;
1277         struct aac_command *cm;
1278         int i;
1279
1280         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1281
1282         while ((fm = TAILQ_FIRST(&sc->aac_fibmap_tqh)) != NULL) {
1283
1284                 TAILQ_REMOVE(&sc->aac_fibmap_tqh, fm, fm_link);
1285                 /*
1286                  * We check against total_fibs to handle partially
1287                  * allocated blocks.
1288                  */
1289                 for (i = 0; i < sc->aac_max_fibs_alloc && sc->total_fibs--; i++) {
1290                         cm = fm->aac_commands + i;
1291                         bus_dmamap_destroy(sc->aac_buffer_dmat, cm->cm_datamap);
1292                 }
1293                 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap);
1294                 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap);
1295                 free(fm, M_AACRAIDBUF);
1296         }
1297 }
1298
1299 /*
1300  * Command-mapping helper function - populate this command's s/g table.
1301  */
1302 void
1303 aacraid_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1304 {
1305         struct aac_softc *sc;
1306         struct aac_command *cm;
1307         struct aac_fib *fib;
1308         int i;
1309
1310         cm = (struct aac_command *)arg;
1311         sc = cm->cm_sc;
1312         fib = cm->cm_fib;
1313         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "nseg %d", nseg);
1314         mtx_assert(&sc->aac_io_lock, MA_OWNED);
1315
1316         /* copy into the FIB */
1317         if (cm->cm_sgtable != NULL) {
1318                 if (fib->Header.Command == RawIo2) {
1319                         struct aac_raw_io2 *raw;
1320                         struct aac_sge_ieee1212 *sg;
1321                         u_int32_t min_size = PAGE_SIZE, cur_size;
1322                         int conformable = TRUE;
1323
1324                         raw = (struct aac_raw_io2 *)&fib->data[0];
1325                         sg = (struct aac_sge_ieee1212 *)cm->cm_sgtable;
1326                         raw->sgeCnt = nseg;
1327
1328                         for (i = 0; i < nseg; i++) {
1329                                 cur_size = segs[i].ds_len;
1330                                 sg[i].addrHigh = 0;
1331                                 *(bus_addr_t *)&sg[i].addrLow = segs[i].ds_addr;
1332                                 sg[i].length = cur_size;
1333                                 sg[i].flags = 0;
1334                                 if (i == 0) {
1335                                         raw->sgeFirstSize = cur_size;
1336                                 } else if (i == 1) {
1337                                         raw->sgeNominalSize = cur_size;
1338                                         min_size = cur_size;
1339                                 } else if ((i+1) < nseg &&
1340                                         cur_size != raw->sgeNominalSize) {
1341                                         conformable = FALSE;
1342                                         if (cur_size < min_size)
1343                                                 min_size = cur_size;
1344                                 }
1345                         }
1346
1347                         /* not conformable: evaluate required sg elements */
1348                         if (!conformable) {
1349                                 int j, err_found, nseg_new = nseg;
1350                                 for (i = min_size / PAGE_SIZE; i >= 1; --i) {
1351                                         err_found = FALSE;
1352                                         nseg_new = 2;
1353                                         for (j = 1; j < nseg - 1; ++j) {
1354                                                 if (sg[j].length % (i*PAGE_SIZE)) {
1355                                                         err_found = TRUE;
1356                                                         break;
1357                                                 }
1358                                                 nseg_new += (sg[j].length / (i*PAGE_SIZE));
1359                                         }
1360                                         if (!err_found)
1361                                                 break;
1362                                 }
1363                                 if (i>0 && nseg_new<=sc->aac_sg_tablesize &&
1364                                         !(sc->hint_flags & 4))
1365                                         nseg = aac_convert_sgraw2(sc,
1366                                                 raw, i, nseg, nseg_new);
1367                         } else {
1368                                 raw->flags |= RIO2_SGL_CONFORMANT;
1369                         }
1370
1371                         /* update the FIB size for the s/g count */
1372                         fib->Header.Size += nseg *
1373                                 sizeof(struct aac_sge_ieee1212);
1374
1375                 } else if (fib->Header.Command == RawIo) {
1376                         struct aac_sg_tableraw *sg;
1377                         sg = (struct aac_sg_tableraw *)cm->cm_sgtable;
1378                         sg->SgCount = nseg;
1379                         for (i = 0; i < nseg; i++) {
1380                                 sg->SgEntryRaw[i].SgAddress = segs[i].ds_addr;
1381                                 sg->SgEntryRaw[i].SgByteCount = segs[i].ds_len;
1382                                 sg->SgEntryRaw[i].Next = 0;
1383                                 sg->SgEntryRaw[i].Prev = 0;
1384                                 sg->SgEntryRaw[i].Flags = 0;
1385                         }
1386                         /* update the FIB size for the s/g count */
1387                         fib->Header.Size += nseg*sizeof(struct aac_sg_entryraw);
1388                 } else if ((cm->cm_sc->flags & AAC_FLAGS_SG_64BIT) == 0) {
1389                         struct aac_sg_table *sg;
1390                         sg = cm->cm_sgtable;
1391                         sg->SgCount = nseg;
1392                         for (i = 0; i < nseg; i++) {
1393                                 sg->SgEntry[i].SgAddress = segs[i].ds_addr;
1394                                 sg->SgEntry[i].SgByteCount = segs[i].ds_len;
1395                         }
1396                         /* update the FIB size for the s/g count */
1397                         fib->Header.Size += nseg*sizeof(struct aac_sg_entry);
1398                 } else {
1399                         struct aac_sg_table64 *sg;
1400                         sg = (struct aac_sg_table64 *)cm->cm_sgtable;
1401                         sg->SgCount = nseg;
1402                         for (i = 0; i < nseg; i++) {
1403                                 sg->SgEntry64[i].SgAddress = segs[i].ds_addr;
1404                                 sg->SgEntry64[i].SgByteCount = segs[i].ds_len;
1405                         }
1406                         /* update the FIB size for the s/g count */
1407                         fib->Header.Size += nseg*sizeof(struct aac_sg_entry64);
1408                 }
1409         }
1410
1411         /* Fix up the address values in the FIB.  Use the command array index
1412          * instead of a pointer since these fields are only 32 bits.  Shift
1413          * the SenderFibAddress over to make room for the fast response bit
1414          * and for the AIF bit
1415          */
1416         cm->cm_fib->Header.SenderFibAddress = (cm->cm_index << 2);
1417         cm->cm_fib->Header.u.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys;
1418
1419         /* save a pointer to the command for speedy reverse-lookup */
1420         cm->cm_fib->Header.Handle += cm->cm_index + 1;
1421
1422         if (cm->cm_passthr_dmat == 0) {
1423                 if (cm->cm_flags & AAC_CMD_DATAIN)
1424                         bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1425                                                         BUS_DMASYNC_PREREAD);
1426                 if (cm->cm_flags & AAC_CMD_DATAOUT)
1427                         bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1428                                                         BUS_DMASYNC_PREWRITE);
1429         }
1430
1431         cm->cm_flags |= AAC_CMD_MAPPED;
1432
1433         if (sc->flags & AAC_FLAGS_SYNC_MODE) {
1434                 u_int32_t wait = 0;
1435                 aacraid_sync_command(sc, AAC_MONKER_SYNCFIB, cm->cm_fibphys, 0, 0, 0, &wait, NULL);
1436         } else if (cm->cm_flags & AAC_CMD_WAIT) {
1437                 aacraid_sync_command(sc, AAC_MONKER_SYNCFIB, cm->cm_fibphys, 0, 0, 0, NULL, NULL);
1438         } else {
1439                 int count = 10000000L;
1440                 while (AAC_SEND_COMMAND(sc, cm) != 0) {
1441                         if (--count == 0) {
1442                                 aac_unmap_command(cm);
1443                                 sc->flags |= AAC_QUEUE_FRZN;
1444                                 aac_requeue_ready(cm);
1445                         }
1446                         DELAY(5);                       /* wait 5 usec. */
1447                 }
1448         }
1449 }
1450
1451
1452 static int
1453 aac_convert_sgraw2(struct aac_softc *sc, struct aac_raw_io2 *raw,
1454                                    int pages, int nseg, int nseg_new)
1455 {
1456         struct aac_sge_ieee1212 *sge;
1457         int i, j, pos;
1458         u_int32_t addr_low;
1459
1460         sge = malloc(nseg_new * sizeof(struct aac_sge_ieee1212),
1461                 M_AACRAIDBUF, M_NOWAIT|M_ZERO);
1462         if (sge == NULL)
1463                 return nseg;
1464
1465         for (i = 1, pos = 1; i < nseg - 1; ++i) {
1466                 for (j = 0; j < raw->sge[i].length / (pages*PAGE_SIZE); ++j) {
1467                         addr_low = raw->sge[i].addrLow + j * pages * PAGE_SIZE;
1468                         sge[pos].addrLow = addr_low;
1469                         sge[pos].addrHigh = raw->sge[i].addrHigh;
1470                         if (addr_low < raw->sge[i].addrLow)
1471                                 sge[pos].addrHigh++;
1472                         sge[pos].length = pages * PAGE_SIZE;
1473                         sge[pos].flags = 0;
1474                         pos++;
1475                 }
1476         }
1477         sge[pos] = raw->sge[nseg-1];
1478         for (i = 1; i < nseg_new; ++i)
1479                 raw->sge[i] = sge[i];
1480
1481         free(sge, M_AACRAIDBUF);
1482         raw->sgeCnt = nseg_new;
1483         raw->flags |= RIO2_SGL_CONFORMANT;
1484         raw->sgeNominalSize = pages * PAGE_SIZE;
1485         return nseg_new;
1486 }
1487
1488
1489 /*
1490  * Unmap a command from controller-visible space.
1491  */
1492 static void
1493 aac_unmap_command(struct aac_command *cm)
1494 {
1495         struct aac_softc *sc;
1496
1497         sc = cm->cm_sc;
1498         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1499
1500         if (!(cm->cm_flags & AAC_CMD_MAPPED))
1501                 return;
1502
1503         if (cm->cm_datalen != 0 && cm->cm_passthr_dmat == 0) {
1504                 if (cm->cm_flags & AAC_CMD_DATAIN)
1505                         bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1506                                         BUS_DMASYNC_POSTREAD);
1507                 if (cm->cm_flags & AAC_CMD_DATAOUT)
1508                         bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1509                                         BUS_DMASYNC_POSTWRITE);
1510
1511                 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap);
1512         }
1513         cm->cm_flags &= ~AAC_CMD_MAPPED;
1514 }
1515
1516 /*
1517  * Hardware Interface
1518  */
1519
1520 /*
1521  * Initialize the adapter.
1522  */
1523 static void
1524 aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1525 {
1526         struct aac_softc *sc;
1527
1528         sc = (struct aac_softc *)arg;
1529         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1530
1531         sc->aac_common_busaddr = segs[0].ds_addr;
1532 }
1533
1534 static int
1535 aac_check_firmware(struct aac_softc *sc)
1536 {
1537         u_int32_t code, major, minor, maxsize;
1538         u_int32_t options = 0, atu_size = 0, status, waitCount;
1539         time_t then;
1540
1541         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1542
1543         /* check if flash update is running */
1544         if (AAC_GET_FWSTATUS(sc) & AAC_FLASH_UPD_PENDING) {
1545                 then = time_uptime;
1546                 do {
1547                         code = AAC_GET_FWSTATUS(sc);
1548                         if (time_uptime > (then + AAC_FWUPD_TIMEOUT)) {
1549                                 device_printf(sc->aac_dev,
1550                                                   "FATAL: controller not coming ready, "
1551                                                    "status %x\n", code);
1552                                 return(ENXIO);
1553                         }
1554                 } while (!(code & AAC_FLASH_UPD_SUCCESS) && !(code & AAC_FLASH_UPD_FAILED));
1555                 /*
1556                  * Delay 10 seconds. Because right now FW is doing a soft reset,
1557                  * do not read scratch pad register at this time
1558                  */
1559                 waitCount = 10 * 10000;
1560                 while (waitCount) {
1561                         DELAY(100);             /* delay 100 microseconds */
1562                         waitCount--;
1563                 }
1564         }
1565
1566         /*
1567          * Wait for the adapter to come ready.
1568          */
1569         then = time_uptime;
1570         do {
1571                 code = AAC_GET_FWSTATUS(sc);
1572                 if (time_uptime > (then + AAC_BOOT_TIMEOUT)) {
1573                         device_printf(sc->aac_dev,
1574                                       "FATAL: controller not coming ready, "
1575                                            "status %x\n", code);
1576                         return(ENXIO);
1577                 }
1578         } while (!(code & AAC_UP_AND_RUNNING) || code == 0xffffffff);
1579
1580         /*
1581          * Retrieve the firmware version numbers.  Dell PERC2/QC cards with
1582          * firmware version 1.x are not compatible with this driver.
1583          */
1584         if (sc->flags & AAC_FLAGS_PERC2QC) {
1585                 if (aacraid_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0,
1586                                      NULL, NULL)) {
1587                         device_printf(sc->aac_dev,
1588                                       "Error reading firmware version\n");
1589                         return (EIO);
1590                 }
1591
1592                 /* These numbers are stored as ASCII! */
1593                 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30;
1594                 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30;
1595                 if (major == 1) {
1596                         device_printf(sc->aac_dev,
1597                             "Firmware version %d.%d is not supported.\n",
1598                             major, minor);
1599                         return (EINVAL);
1600                 }
1601         }
1602         /*
1603          * Retrieve the capabilities/supported options word so we know what
1604          * work-arounds to enable.  Some firmware revs don't support this
1605          * command.
1606          */
1607         if (aacraid_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, &status, NULL)) {
1608                 if (status != AAC_SRB_STS_INVALID_REQUEST) {
1609                         device_printf(sc->aac_dev,
1610                              "RequestAdapterInfo failed\n");
1611                         return (EIO);
1612                 }
1613         } else {
1614                 options = AAC_GET_MAILBOX(sc, 1);
1615                 atu_size = AAC_GET_MAILBOX(sc, 2);
1616                 sc->supported_options = options;
1617
1618                 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 &&
1619                     (sc->flags & AAC_FLAGS_NO4GB) == 0)
1620                         sc->flags |= AAC_FLAGS_4GB_WINDOW;
1621                 if (options & AAC_SUPPORTED_NONDASD)
1622                         sc->flags |= AAC_FLAGS_ENABLE_CAM;
1623                 if ((options & AAC_SUPPORTED_SGMAP_HOST64) != 0
1624                         && (sizeof(bus_addr_t) > 4)
1625                         && (sc->hint_flags & 0x1)) {
1626                         device_printf(sc->aac_dev,
1627                             "Enabling 64-bit address support\n");
1628                         sc->flags |= AAC_FLAGS_SG_64BIT;
1629                 }
1630                 if (sc->aac_if.aif_send_command) {
1631                         if ((options & AAC_SUPPORTED_NEW_COMM_TYPE3) ||
1632                                 (options & AAC_SUPPORTED_NEW_COMM_TYPE4))
1633                                 sc->flags |= AAC_FLAGS_NEW_COMM | AAC_FLAGS_NEW_COMM_TYPE34;
1634                         else if (options & AAC_SUPPORTED_NEW_COMM_TYPE1)
1635                                 sc->flags |= AAC_FLAGS_NEW_COMM | AAC_FLAGS_NEW_COMM_TYPE1;
1636                         else if (options & AAC_SUPPORTED_NEW_COMM_TYPE2)
1637                                 sc->flags |= AAC_FLAGS_NEW_COMM | AAC_FLAGS_NEW_COMM_TYPE2;
1638                 }
1639                 if (options & AAC_SUPPORTED_64BIT_ARRAYSIZE)
1640                         sc->flags |= AAC_FLAGS_ARRAY_64BIT;
1641         }
1642
1643         if (!(sc->flags & AAC_FLAGS_NEW_COMM)) {
1644                 device_printf(sc->aac_dev, "Communication interface not supported!\n");
1645                 return (ENXIO);
1646         }
1647
1648         if (sc->hint_flags & 2) {
1649                 device_printf(sc->aac_dev,
1650                         "Sync. mode enforced by driver parameter. This will cause a significant performance decrease!\n");
1651                 sc->flags |= AAC_FLAGS_SYNC_MODE;
1652         } else if (sc->flags & AAC_FLAGS_NEW_COMM_TYPE34) {
1653                 device_printf(sc->aac_dev,
1654                         "Async. mode not supported by current driver, sync. mode enforced.\nPlease update driver to get full performance.\n");
1655                 sc->flags |= AAC_FLAGS_SYNC_MODE;
1656         }
1657
1658         /* Check for broken hardware that does a lower number of commands */
1659         sc->aac_max_fibs = (sc->flags & AAC_FLAGS_256FIBS ? 256:512);
1660
1661         /* Remap mem. resource, if required */
1662         if (atu_size > rman_get_size(sc->aac_regs_res0)) {
1663                 bus_release_resource(
1664                         sc->aac_dev, SYS_RES_MEMORY,
1665                         sc->aac_regs_rid0, sc->aac_regs_res0);
1666                 sc->aac_regs_res0 = bus_alloc_resource(
1667                         sc->aac_dev, SYS_RES_MEMORY, &sc->aac_regs_rid0,
1668                         0ul, ~0ul, atu_size, RF_ACTIVE);
1669                 if (sc->aac_regs_res0 == NULL) {
1670                         sc->aac_regs_res0 = bus_alloc_resource_any(
1671                                 sc->aac_dev, SYS_RES_MEMORY,
1672                                 &sc->aac_regs_rid0, RF_ACTIVE);
1673                         if (sc->aac_regs_res0 == NULL) {
1674                                 device_printf(sc->aac_dev,
1675                                         "couldn't allocate register window\n");
1676                                 return (ENXIO);
1677                         }
1678                 }
1679                 sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0);
1680                 sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0);
1681         }
1682
1683         /* Read preferred settings */
1684         sc->aac_max_fib_size = sizeof(struct aac_fib);
1685         sc->aac_max_sectors = 128;                              /* 64KB */
1686         sc->aac_max_aif = 1;
1687         if (sc->flags & AAC_FLAGS_SG_64BIT)
1688                 sc->aac_sg_tablesize = (AAC_FIB_DATASIZE
1689                  - sizeof(struct aac_blockwrite64))
1690                  / sizeof(struct aac_sg_entry64);
1691         else
1692                 sc->aac_sg_tablesize = (AAC_FIB_DATASIZE
1693                  - sizeof(struct aac_blockwrite))
1694                  / sizeof(struct aac_sg_entry);
1695
1696         if (!aacraid_sync_command(sc, AAC_MONKER_GETCOMMPREF, 0, 0, 0, 0, NULL, NULL)) {
1697                 options = AAC_GET_MAILBOX(sc, 1);
1698                 sc->aac_max_fib_size = (options & 0xFFFF);
1699                 sc->aac_max_sectors = (options >> 16) << 1;
1700                 options = AAC_GET_MAILBOX(sc, 2);
1701                 sc->aac_sg_tablesize = (options >> 16);
1702                 options = AAC_GET_MAILBOX(sc, 3);
1703                 sc->aac_max_fibs = ((options >> 16) & 0xFFFF);
1704                 if (sc->aac_max_fibs == 0 || sc->aac_hwif != AAC_HWIF_SRCV)
1705                         sc->aac_max_fibs = (options & 0xFFFF);
1706                 options = AAC_GET_MAILBOX(sc, 4);
1707                 sc->aac_max_aif = (options & 0xFFFF);
1708                 options = AAC_GET_MAILBOX(sc, 5);
1709                 sc->aac_max_msix =(sc->flags & AAC_FLAGS_NEW_COMM_TYPE2) ? options : 0;
1710         }
1711
1712         maxsize = sc->aac_max_fib_size + 31;
1713         if (sc->flags & AAC_FLAGS_NEW_COMM_TYPE1)
1714                 maxsize += sizeof(struct aac_fib_xporthdr);
1715         if (maxsize > PAGE_SIZE) {
1716         sc->aac_max_fib_size -= (maxsize - PAGE_SIZE);
1717                 maxsize = PAGE_SIZE;
1718         }
1719         sc->aac_max_fibs_alloc = PAGE_SIZE / maxsize;
1720
1721         if (sc->aac_max_fib_size > sizeof(struct aac_fib)) {
1722                 sc->flags |= AAC_FLAGS_RAW_IO;
1723                 device_printf(sc->aac_dev, "Enable Raw I/O\n");
1724         }
1725         if ((sc->flags & AAC_FLAGS_RAW_IO) &&
1726             (sc->flags & AAC_FLAGS_ARRAY_64BIT)) {
1727                 sc->flags |= AAC_FLAGS_LBA_64BIT;
1728                 device_printf(sc->aac_dev, "Enable 64-bit array\n");
1729         }
1730
1731 #ifdef AACRAID_DEBUG
1732         aacraid_get_fw_debug_buffer(sc);
1733 #endif
1734         return (0);
1735 }
1736
1737 static int
1738 aac_init(struct aac_softc *sc)
1739 {
1740         struct aac_adapter_init *ip;
1741         int i, error;
1742
1743         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1744
1745         /* reset rrq index */
1746         sc->aac_fibs_pushed_no = 0;
1747         for (i = 0; i < sc->aac_max_msix; i++)
1748                 sc->aac_host_rrq_idx[i] = i * sc->aac_vector_cap;
1749
1750         /*
1751          * Fill in the init structure.  This tells the adapter about the
1752          * physical location of various important shared data structures.
1753          */
1754         ip = &sc->aac_common->ac_init;
1755         ip->InitStructRevision = AAC_INIT_STRUCT_REVISION;
1756         if (sc->aac_max_fib_size > sizeof(struct aac_fib)) {
1757                 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION_4;
1758                 sc->flags |= AAC_FLAGS_RAW_IO;
1759         }
1760         ip->NoOfMSIXVectors = sc->aac_max_msix;
1761
1762         ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr +
1763                                          offsetof(struct aac_common, ac_fibs);
1764         ip->AdapterFibsVirtualAddress = 0;
1765         ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib);
1766         ip->AdapterFibAlign = sizeof(struct aac_fib);
1767
1768         ip->PrintfBufferAddress = sc->aac_common_busaddr +
1769                                   offsetof(struct aac_common, ac_printf);
1770         ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE;
1771
1772         /*
1773          * The adapter assumes that pages are 4K in size, except on some
1774          * broken firmware versions that do the page->byte conversion twice,
1775          * therefore 'assuming' that this value is in 16MB units (2^24).
1776          * Round up since the granularity is so high.
1777          */
1778         ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE;
1779         if (sc->flags & AAC_FLAGS_BROKEN_MEMMAP) {
1780                 ip->HostPhysMemPages =
1781                     (ip->HostPhysMemPages + AAC_PAGE_SIZE) / AAC_PAGE_SIZE;
1782         }
1783         ip->HostElapsedSeconds = time_uptime;   /* reset later if invalid */
1784
1785         ip->InitFlags = AAC_INITFLAGS_NEW_COMM_SUPPORTED;
1786         if (sc->flags & AAC_FLAGS_NEW_COMM_TYPE1) {
1787                 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION_6;
1788                 ip->InitFlags |= (AAC_INITFLAGS_NEW_COMM_TYPE1_SUPPORTED |
1789                         AAC_INITFLAGS_FAST_JBOD_SUPPORTED);
1790                 device_printf(sc->aac_dev, "New comm. interface type1 enabled\n");
1791         } else if (sc->flags & AAC_FLAGS_NEW_COMM_TYPE2) {
1792                 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION_7;
1793                 ip->InitFlags |= (AAC_INITFLAGS_NEW_COMM_TYPE2_SUPPORTED |
1794                         AAC_INITFLAGS_FAST_JBOD_SUPPORTED);
1795                 device_printf(sc->aac_dev, "New comm. interface type2 enabled\n");
1796         }
1797         ip->MaxNumAif = sc->aac_max_aif;
1798         ip->HostRRQ_AddrLow =
1799                 sc->aac_common_busaddr + offsetof(struct aac_common, ac_host_rrq);
1800         /* always 32-bit address */
1801         ip->HostRRQ_AddrHigh = 0;
1802
1803         if (sc->aac_support_opt2 & AAC_SUPPORTED_POWER_MANAGEMENT) {
1804                 ip->InitFlags |= AAC_INITFLAGS_DRIVER_SUPPORTS_PM;
1805                 ip->InitFlags |= AAC_INITFLAGS_DRIVER_USES_UTC_TIME;
1806                 device_printf(sc->aac_dev, "Power Management enabled\n");
1807         }
1808
1809         ip->MaxIoCommands = sc->aac_max_fibs;
1810         ip->MaxIoSize = sc->aac_max_sectors << 9;
1811         ip->MaxFibSize = sc->aac_max_fib_size;
1812
1813         /*
1814          * Do controller-type-specific initialisation
1815          */
1816         AAC_MEM0_SETREG4(sc, AAC_SRC_ODBR_C, ~0);
1817
1818         /*
1819          * Give the init structure to the controller.
1820          */
1821         if (aacraid_sync_command(sc, AAC_MONKER_INITSTRUCT,
1822                              sc->aac_common_busaddr +
1823                              offsetof(struct aac_common, ac_init), 0, 0, 0,
1824                              NULL, NULL)) {
1825                 device_printf(sc->aac_dev,
1826                               "error establishing init structure\n");
1827                 error = EIO;
1828                 goto out;
1829         }
1830
1831         /*
1832          * Check configuration issues
1833          */
1834         if ((error = aac_check_config(sc)) != 0)
1835                 goto out;
1836
1837         error = 0;
1838 out:
1839         return(error);
1840 }
1841
1842 static void
1843 aac_define_int_mode(struct aac_softc *sc)
1844 {
1845         device_t dev;
1846         int cap, msi_count, error = 0;
1847         uint32_t val;
1848
1849         dev = sc->aac_dev;
1850
1851         /* max. vectors from AAC_MONKER_GETCOMMPREF */
1852         if (sc->aac_max_msix == 0) {
1853                 sc->aac_max_msix = 1;
1854                 sc->aac_vector_cap = sc->aac_max_fibs;
1855                 return;
1856         }
1857
1858         /* OS capability */
1859         msi_count = pci_msix_count(dev);
1860         if (msi_count > AAC_MAX_MSIX)
1861                 msi_count = AAC_MAX_MSIX;
1862         if (msi_count > sc->aac_max_msix)
1863                 msi_count = sc->aac_max_msix;
1864         if (msi_count == 0 || (error = pci_alloc_msix(dev, &msi_count)) != 0) {
1865                 device_printf(dev, "alloc msix failed - msi_count=%d, err=%d; "
1866                                    "will try MSI\n", msi_count, error);
1867                 pci_release_msi(dev);
1868         } else {
1869                 sc->msi_enabled = TRUE;
1870                 device_printf(dev, "using MSI-X interrupts (%u vectors)\n",
1871                         msi_count);
1872         }
1873
1874         if (!sc->msi_enabled) {
1875                 msi_count = 1;
1876                 if ((error = pci_alloc_msi(dev, &msi_count)) != 0) {
1877                         device_printf(dev, "alloc msi failed - err=%d; "
1878                                            "will use INTx\n", error);
1879                         pci_release_msi(dev);
1880                 } else {
1881                         sc->msi_enabled = TRUE;
1882                         device_printf(dev, "using MSI interrupts\n");
1883                 }
1884         }
1885
1886         if (sc->msi_enabled) {
1887                 /* now read controller capability from PCI config. space */
1888                 cap = aac_find_pci_capability(sc, PCIY_MSIX);
1889                 val = (cap != 0 ? pci_read_config(dev, cap + 2, 2) : 0);
1890                 if (!(val & AAC_PCI_MSI_ENABLE)) {
1891                         pci_release_msi(dev);
1892                         sc->msi_enabled = FALSE;
1893                 }
1894         }
1895
1896         if (!sc->msi_enabled) {
1897                 device_printf(dev, "using legacy interrupts\n");
1898                 sc->aac_max_msix = 1;
1899         } else {
1900                 AAC_ACCESS_DEVREG(sc, AAC_ENABLE_MSIX);
1901                 if (sc->aac_max_msix > msi_count)
1902                         sc->aac_max_msix = msi_count;
1903         }
1904         sc->aac_vector_cap = sc->aac_max_fibs / sc->aac_max_msix;
1905
1906         fwprintf(sc, HBA_FLAGS_DBG_DEBUG_B, "msi_enabled %d vector_cap %d max_fibs %d max_msix %d",
1907                 sc->msi_enabled,sc->aac_vector_cap, sc->aac_max_fibs, sc->aac_max_msix);
1908 }
1909
1910 static int
1911 aac_find_pci_capability(struct aac_softc *sc, int cap)
1912 {
1913         device_t dev;
1914         uint32_t status;
1915         uint8_t ptr;
1916
1917         dev = sc->aac_dev;
1918
1919         status = pci_read_config(dev, PCIR_STATUS, 2);
1920         if (!(status & PCIM_STATUS_CAPPRESENT))
1921                 return (0);
1922
1923         status = pci_read_config(dev, PCIR_HDRTYPE, 1);
1924         switch (status & PCIM_HDRTYPE) {
1925         case 0:
1926         case 1:
1927                 ptr = PCIR_CAP_PTR;
1928                 break;
1929         case 2:
1930                 ptr = PCIR_CAP_PTR_2;
1931                 break;
1932         default:
1933                 return (0);
1934                 break;
1935         }
1936         ptr = pci_read_config(dev, ptr, 1);
1937
1938         while (ptr != 0) {
1939                 int next, val;
1940                 next = pci_read_config(dev, ptr + PCICAP_NEXTPTR, 1);
1941                 val = pci_read_config(dev, ptr + PCICAP_ID, 1);
1942                 if (val == cap)
1943                         return (ptr);
1944                 ptr = next;
1945         }
1946
1947         return (0);
1948 }
1949
1950 static int
1951 aac_setup_intr(struct aac_softc *sc)
1952 {
1953         int i, msi_count, rid;
1954         struct resource *res;
1955         void *tag;
1956
1957         msi_count = sc->aac_max_msix;
1958         rid = (sc->msi_enabled ? 1:0);
1959
1960         for (i = 0; i < msi_count; i++, rid++) {
1961                 if ((res = bus_alloc_resource_any(sc->aac_dev,SYS_RES_IRQ, &rid,
1962                         RF_SHAREABLE | RF_ACTIVE)) == NULL) {
1963                         device_printf(sc->aac_dev,"can't allocate interrupt\n");
1964                         return (EINVAL);
1965                 }
1966                 sc->aac_irq_rid[i] = rid;
1967                 sc->aac_irq[i] = res;
1968                 if (aac_bus_setup_intr(sc->aac_dev, res,
1969                         INTR_MPSAFE | INTR_TYPE_BIO, NULL,
1970                         aacraid_new_intr_type1, &sc->aac_msix[i], &tag)) {
1971                         device_printf(sc->aac_dev, "can't set up interrupt\n");
1972                         return (EINVAL);
1973                 }
1974                 sc->aac_msix[i].vector_no = i;
1975                 sc->aac_msix[i].sc = sc;
1976                 sc->aac_intr[i] = tag;
1977         }
1978
1979         return (0);
1980 }
1981
1982 static int
1983 aac_check_config(struct aac_softc *sc)
1984 {
1985         struct aac_fib *fib;
1986         struct aac_cnt_config *ccfg;
1987         struct aac_cf_status_hdr *cf_shdr;
1988         int rval;
1989
1990         mtx_lock(&sc->aac_io_lock);
1991         aac_alloc_sync_fib(sc, &fib);
1992
1993         ccfg = (struct aac_cnt_config *)&fib->data[0];
1994         bzero(ccfg, sizeof (*ccfg) - CT_PACKET_SIZE);
1995         ccfg->Command = VM_ContainerConfig;
1996         ccfg->CTCommand.command = CT_GET_CONFIG_STATUS;
1997         ccfg->CTCommand.param[CNT_SIZE] = sizeof(struct aac_cf_status_hdr);
1998
1999         rval = aac_sync_fib(sc, ContainerCommand, 0, fib,
2000                 sizeof (struct aac_cnt_config));
2001         cf_shdr = (struct aac_cf_status_hdr *)ccfg->CTCommand.data;
2002         if (rval == 0 && ccfg->Command == ST_OK &&
2003                 ccfg->CTCommand.param[0] == CT_OK) {
2004                 if (cf_shdr->action <= CFACT_PAUSE) {
2005                         bzero(ccfg, sizeof (*ccfg) - CT_PACKET_SIZE);
2006                         ccfg->Command = VM_ContainerConfig;
2007                         ccfg->CTCommand.command = CT_COMMIT_CONFIG;
2008
2009                         rval = aac_sync_fib(sc, ContainerCommand, 0, fib,
2010                                 sizeof (struct aac_cnt_config));
2011                         if (rval == 0 && ccfg->Command == ST_OK &&
2012                                 ccfg->CTCommand.param[0] == CT_OK) {
2013                                 /* successful completion */
2014                                 rval = 0;
2015                         } else {
2016                                 /* auto commit aborted due to error(s) */
2017                                 rval = -2;
2018                         }
2019                 } else {
2020                         /* auto commit aborted due to adapter indicating
2021                            config. issues too dangerous to auto commit  */
2022                         rval = -3;
2023                 }
2024         } else {
2025                 /* error */
2026                 rval = -1;
2027         }
2028
2029         aac_release_sync_fib(sc);
2030         mtx_unlock(&sc->aac_io_lock);
2031         return(rval);
2032 }
2033
2034 /*
2035  * Send a synchronous command to the controller and wait for a result.
2036  * Indicate if the controller completed the command with an error status.
2037  */
2038 int
2039 aacraid_sync_command(struct aac_softc *sc, u_int32_t command,
2040                  u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3,
2041                  u_int32_t *sp, u_int32_t *r1)
2042 {
2043         time_t then;
2044         u_int32_t status;
2045
2046         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2047
2048         /* populate the mailbox */
2049         AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3);
2050
2051         /* ensure the sync command doorbell flag is cleared */
2052         if (!sc->msi_enabled)
2053                 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND);
2054
2055         /* then set it to signal the adapter */
2056         AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND);
2057
2058         if ((command != AAC_MONKER_SYNCFIB) || (sp == NULL) || (*sp != 0)) {
2059                 /* spin waiting for the command to complete */
2060                 then = time_uptime;
2061                 do {
2062                         if (time_uptime > (then + AAC_SYNC_TIMEOUT)) {
2063                                 fwprintf(sc, HBA_FLAGS_DBG_ERROR_B, "timed out");
2064                                 return(EIO);
2065                         }
2066                 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND));
2067
2068                 /* clear the completion flag */
2069                 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND);
2070
2071                 /* get the command status */
2072                 status = AAC_GET_MAILBOX(sc, 0);
2073                 if (sp != NULL)
2074                         *sp = status;
2075
2076                 /* return parameter */
2077                 if (r1 != NULL)
2078                         *r1 = AAC_GET_MAILBOX(sc, 1);
2079
2080                 if (status != AAC_SRB_STS_SUCCESS)
2081                         return (-1);
2082         }
2083         return(0);
2084 }
2085
2086 static int
2087 aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate,
2088                  struct aac_fib *fib, u_int16_t datasize)
2089 {
2090         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2091         mtx_assert(&sc->aac_io_lock, MA_OWNED);
2092
2093         if (datasize > AAC_FIB_DATASIZE)
2094                 return(EINVAL);
2095
2096         /*
2097          * Set up the sync FIB
2098          */
2099         fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED |
2100                                 AAC_FIBSTATE_INITIALISED |
2101                                 AAC_FIBSTATE_EMPTY;
2102         fib->Header.XferState |= xferstate;
2103         fib->Header.Command = command;
2104         fib->Header.StructType = AAC_FIBTYPE_TFIB;
2105         fib->Header.Size = sizeof(struct aac_fib_header) + datasize;
2106         fib->Header.SenderSize = sizeof(struct aac_fib);
2107         fib->Header.SenderFibAddress = 0;       /* Not needed */
2108         fib->Header.u.ReceiverFibAddress = sc->aac_common_busaddr +
2109                 offsetof(struct aac_common, ac_sync_fib);
2110
2111         /*
2112          * Give the FIB to the controller, wait for a response.
2113          */
2114         if (aacraid_sync_command(sc, AAC_MONKER_SYNCFIB,
2115                 fib->Header.u.ReceiverFibAddress, 0, 0, 0, NULL, NULL)) {
2116                 fwprintf(sc, HBA_FLAGS_DBG_ERROR_B, "IO error");
2117                 return(EIO);
2118         }
2119
2120         return (0);
2121 }
2122
2123 /*
2124  * Check for commands that have been outstanding for a suspiciously long time,
2125  * and complain about them.
2126  */
2127 static void
2128 aac_timeout(struct aac_softc *sc)
2129 {
2130         struct aac_command *cm;
2131         time_t deadline;
2132         int timedout;
2133
2134         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2135         /*
2136          * Traverse the busy command list, bitch about late commands once
2137          * only.
2138          */
2139         timedout = 0;
2140         deadline = time_uptime - AAC_CMD_TIMEOUT;
2141         TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) {
2142                 if (cm->cm_timestamp < deadline) {
2143                         device_printf(sc->aac_dev,
2144                                       "COMMAND %p TIMEOUT AFTER %d SECONDS\n",
2145                                       cm, (int)(time_uptime-cm->cm_timestamp));
2146                         AAC_PRINT_FIB(sc, cm->cm_fib);
2147                         timedout++;
2148                 }
2149         }
2150
2151         if (timedout)
2152                 aac_reset_adapter(sc);
2153         aacraid_print_queues(sc);
2154 }
2155
2156 /*
2157  * Interface Function Vectors
2158  */
2159
2160 /*
2161  * Read the current firmware status word.
2162  */
2163 static int
2164 aac_src_get_fwstatus(struct aac_softc *sc)
2165 {
2166         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2167
2168         return(AAC_MEM0_GETREG4(sc, AAC_SRC_OMR));
2169 }
2170
2171 /*
2172  * Notify the controller of a change in a given queue
2173  */
2174 static void
2175 aac_src_qnotify(struct aac_softc *sc, int qbit)
2176 {
2177         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2178
2179         AAC_MEM0_SETREG4(sc, AAC_SRC_IDBR, qbit << AAC_SRC_IDR_SHIFT);
2180 }
2181
2182 /*
2183  * Get the interrupt reason bits
2184  */
2185 static int
2186 aac_src_get_istatus(struct aac_softc *sc)
2187 {
2188         int val;
2189
2190         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2191
2192         if (sc->msi_enabled) {
2193                 val = AAC_MEM0_GETREG4(sc, AAC_SRC_ODBR_MSI);
2194                 if (val & AAC_MSI_SYNC_STATUS)
2195                         val = AAC_DB_SYNC_COMMAND;
2196                 else
2197                         val = 0;
2198         } else {
2199                 val = AAC_MEM0_GETREG4(sc, AAC_SRC_ODBR_R) >> AAC_SRC_ODR_SHIFT;
2200         }
2201         return(val);
2202 }
2203
2204 /*
2205  * Clear some interrupt reason bits
2206  */
2207 static void
2208 aac_src_clear_istatus(struct aac_softc *sc, int mask)
2209 {
2210         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2211
2212         if (sc->msi_enabled) {
2213                 if (mask == AAC_DB_SYNC_COMMAND)
2214                         AAC_ACCESS_DEVREG(sc, AAC_CLEAR_SYNC_BIT);
2215         } else {
2216                 AAC_MEM0_SETREG4(sc, AAC_SRC_ODBR_C, mask << AAC_SRC_ODR_SHIFT);
2217         }
2218 }
2219
2220 /*
2221  * Populate the mailbox and set the command word
2222  */
2223 static void
2224 aac_src_set_mailbox(struct aac_softc *sc, u_int32_t command, u_int32_t arg0,
2225                     u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2226 {
2227         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2228
2229         AAC_MEM0_SETREG4(sc, AAC_SRC_MAILBOX, command);
2230         AAC_MEM0_SETREG4(sc, AAC_SRC_MAILBOX + 4, arg0);
2231         AAC_MEM0_SETREG4(sc, AAC_SRC_MAILBOX + 8, arg1);
2232         AAC_MEM0_SETREG4(sc, AAC_SRC_MAILBOX + 12, arg2);
2233         AAC_MEM0_SETREG4(sc, AAC_SRC_MAILBOX + 16, arg3);
2234 }
2235
2236 static void
2237 aac_srcv_set_mailbox(struct aac_softc *sc, u_int32_t command, u_int32_t arg0,
2238                     u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2239 {
2240         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2241
2242         AAC_MEM0_SETREG4(sc, AAC_SRCV_MAILBOX, command);
2243         AAC_MEM0_SETREG4(sc, AAC_SRCV_MAILBOX + 4, arg0);
2244         AAC_MEM0_SETREG4(sc, AAC_SRCV_MAILBOX + 8, arg1);
2245         AAC_MEM0_SETREG4(sc, AAC_SRCV_MAILBOX + 12, arg2);
2246         AAC_MEM0_SETREG4(sc, AAC_SRCV_MAILBOX + 16, arg3);
2247 }
2248
2249 /*
2250  * Fetch the immediate command status word
2251  */
2252 static int
2253 aac_src_get_mailbox(struct aac_softc *sc, int mb)
2254 {
2255         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2256
2257         return(AAC_MEM0_GETREG4(sc, AAC_SRC_MAILBOX + (mb * 4)));
2258 }
2259
2260 static int
2261 aac_srcv_get_mailbox(struct aac_softc *sc, int mb)
2262 {
2263         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2264
2265         return(AAC_MEM0_GETREG4(sc, AAC_SRCV_MAILBOX + (mb * 4)));
2266 }
2267
2268 /*
2269  * Set/clear interrupt masks
2270  */
2271 static void
2272 aac_src_access_devreg(struct aac_softc *sc, int mode)
2273 {
2274         u_int32_t val;
2275
2276         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2277
2278         switch (mode) {
2279         case AAC_ENABLE_INTERRUPT:
2280                 AAC_MEM0_SETREG4(sc, AAC_SRC_OIMR,
2281                         (sc->msi_enabled ? AAC_INT_ENABLE_TYPE1_MSIX :
2282                                            AAC_INT_ENABLE_TYPE1_INTX));
2283                 break;
2284
2285         case AAC_DISABLE_INTERRUPT:
2286                 AAC_MEM0_SETREG4(sc, AAC_SRC_OIMR, AAC_INT_DISABLE_ALL);
2287                 break;
2288
2289         case AAC_ENABLE_MSIX:
2290                 /* set bit 6 */
2291                 val = AAC_MEM0_GETREG4(sc, AAC_SRC_IDBR);
2292                 val |= 0x40;
2293                 AAC_MEM0_SETREG4(sc, AAC_SRC_IDBR, val);
2294                 AAC_MEM0_GETREG4(sc, AAC_SRC_IDBR);
2295                 /* unmask int. */
2296                 val = PMC_ALL_INTERRUPT_BITS;
2297                 AAC_MEM0_SETREG4(sc, AAC_SRC_IOAR, val);
2298                 val = AAC_MEM0_GETREG4(sc, AAC_SRC_OIMR);
2299                 AAC_MEM0_SETREG4(sc, AAC_SRC_OIMR,
2300                         val & (~(PMC_GLOBAL_INT_BIT2 | PMC_GLOBAL_INT_BIT0)));
2301                 break;
2302
2303         case AAC_DISABLE_MSIX:
2304                 /* reset bit 6 */
2305                 val = AAC_MEM0_GETREG4(sc, AAC_SRC_IDBR);
2306                 val &= ~0x40;
2307                 AAC_MEM0_SETREG4(sc, AAC_SRC_IDBR, val);
2308                 AAC_MEM0_GETREG4(sc, AAC_SRC_IDBR);
2309                 break;
2310
2311         case AAC_CLEAR_AIF_BIT:
2312                 /* set bit 5 */
2313                 val = AAC_MEM0_GETREG4(sc, AAC_SRC_IDBR);
2314                 val |= 0x20;
2315                 AAC_MEM0_SETREG4(sc, AAC_SRC_IDBR, val);
2316                 AAC_MEM0_GETREG4(sc, AAC_SRC_IDBR);
2317                 break;
2318
2319         case AAC_CLEAR_SYNC_BIT:
2320                 /* set bit 4 */
2321                 val = AAC_MEM0_GETREG4(sc, AAC_SRC_IDBR);
2322                 val |= 0x10;
2323                 AAC_MEM0_SETREG4(sc, AAC_SRC_IDBR, val);
2324                 AAC_MEM0_GETREG4(sc, AAC_SRC_IDBR);
2325                 break;
2326
2327         case AAC_ENABLE_INTX:
2328                 /* set bit 7 */
2329                 val = AAC_MEM0_GETREG4(sc, AAC_SRC_IDBR);
2330                 val |= 0x80;
2331                 AAC_MEM0_SETREG4(sc, AAC_SRC_IDBR, val);
2332                 AAC_MEM0_GETREG4(sc, AAC_SRC_IDBR);
2333                 /* unmask int. */
2334                 val = PMC_ALL_INTERRUPT_BITS;
2335                 AAC_MEM0_SETREG4(sc, AAC_SRC_IOAR, val);
2336                 val = AAC_MEM0_GETREG4(sc, AAC_SRC_OIMR);
2337                 AAC_MEM0_SETREG4(sc, AAC_SRC_OIMR,
2338                         val & (~(PMC_GLOBAL_INT_BIT2)));
2339                 break;
2340
2341         default:
2342                 break;
2343         }
2344 }
2345
2346 /*
2347  * New comm. interface: Send command functions
2348  */
2349 static int
2350 aac_src_send_command(struct aac_softc *sc, struct aac_command *cm)
2351 {
2352         struct aac_fib_xporthdr *pFibX;
2353         u_int32_t fibsize, high_addr;
2354         u_int64_t address;
2355
2356         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "send command (new comm. type1)");
2357
2358         if (sc->msi_enabled && cm->cm_fib->Header.Command != AifRequest &&
2359                 sc->aac_max_msix > 1) {
2360                 u_int16_t vector_no, first_choice = 0xffff;
2361
2362                 vector_no = sc->aac_fibs_pushed_no % sc->aac_max_msix;
2363                 do {
2364                         vector_no += 1;
2365                         if (vector_no == sc->aac_max_msix)
2366                                 vector_no = 1;
2367                         if (sc->aac_rrq_outstanding[vector_no] <
2368                                 sc->aac_vector_cap)
2369                                 break;
2370                         if (0xffff == first_choice)
2371                                 first_choice = vector_no;
2372                         else if (vector_no == first_choice)
2373                                 break;
2374                 } while (1);
2375                 if (vector_no == first_choice)
2376                         vector_no = 0;
2377                 sc->aac_rrq_outstanding[vector_no]++;
2378                 if (sc->aac_fibs_pushed_no == 0xffffffff)
2379                         sc->aac_fibs_pushed_no = 0;
2380                 else
2381                         sc->aac_fibs_pushed_no++;
2382
2383                 cm->cm_fib->Header.Handle += (vector_no << 16);
2384         }
2385
2386         if (sc->flags & AAC_FLAGS_NEW_COMM_TYPE2) {
2387                 /* Calculate the amount to the fibsize bits */
2388                 fibsize = (cm->cm_fib->Header.Size + 127) / 128 - 1;
2389                 /* Fill new FIB header */
2390                 address = cm->cm_fibphys;
2391                 high_addr = (u_int32_t)(address >> 32);
2392                 if (high_addr == 0L) {
2393                         cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB2;
2394                         cm->cm_fib->Header.u.TimeStamp = 0L;
2395                 } else {
2396                         cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB2_64;
2397                         cm->cm_fib->Header.u.SenderFibAddressHigh = high_addr;
2398                 }
2399                 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)address;
2400         } else {
2401                 /* Calculate the amount to the fibsize bits */
2402                 fibsize = (sizeof(struct aac_fib_xporthdr) +
2403                    cm->cm_fib->Header.Size + 127) / 128 - 1;
2404                 /* Fill XPORT header */
2405                 pFibX = (struct aac_fib_xporthdr *)
2406                         ((unsigned char *)cm->cm_fib - sizeof(struct aac_fib_xporthdr));
2407                 pFibX->Handle = cm->cm_fib->Header.Handle;
2408                 pFibX->HostAddress = cm->cm_fibphys;
2409                 pFibX->Size = cm->cm_fib->Header.Size;
2410                 address = cm->cm_fibphys - sizeof(struct aac_fib_xporthdr);
2411                 high_addr = (u_int32_t)(address >> 32);
2412         }
2413
2414         if (fibsize > 31)
2415                 fibsize = 31;
2416         aac_enqueue_busy(cm);
2417         if (high_addr) {
2418                 AAC_MEM0_SETREG4(sc, AAC_SRC_IQUE64_H, high_addr);
2419                 AAC_MEM0_SETREG4(sc, AAC_SRC_IQUE64_L, (u_int32_t)address + fibsize);
2420         } else {
2421                 AAC_MEM0_SETREG4(sc, AAC_SRC_IQUE32, (u_int32_t)address + fibsize);
2422         }
2423         return 0;
2424 }
2425
2426 /*
2427  * New comm. interface: get, set outbound queue index
2428  */
2429 static int
2430 aac_src_get_outb_queue(struct aac_softc *sc)
2431 {
2432         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2433
2434         return(-1);
2435 }
2436
2437 static void
2438 aac_src_set_outb_queue(struct aac_softc *sc, int index)
2439 {
2440         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2441 }
2442
2443 /*
2444  * Debugging and Diagnostics
2445  */
2446
2447 /*
2448  * Print some information about the controller.
2449  */
2450 static void
2451 aac_describe_controller(struct aac_softc *sc)
2452 {
2453         struct aac_fib *fib;
2454         struct aac_adapter_info *info;
2455         char *adapter_type = "Adaptec RAID controller";
2456
2457         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2458
2459         mtx_lock(&sc->aac_io_lock);
2460         aac_alloc_sync_fib(sc, &fib);
2461
2462         if (sc->supported_options & AAC_SUPPORTED_SUPPLEMENT_ADAPTER_INFO) {
2463                 fib->data[0] = 0;
2464                 if (aac_sync_fib(sc, RequestSupplementAdapterInfo, 0, fib, 1))
2465                         device_printf(sc->aac_dev, "RequestSupplementAdapterInfo failed\n");
2466                 else {
2467                         struct aac_supplement_adapter_info *supp_info;
2468
2469                         supp_info = ((struct aac_supplement_adapter_info *)&fib->data[0]);
2470                         adapter_type = (char *)supp_info->AdapterTypeText;
2471                         sc->aac_feature_bits = supp_info->FeatureBits;
2472                         sc->aac_support_opt2 = supp_info->SupportedOptions2;
2473                 }
2474         }
2475         device_printf(sc->aac_dev, "%s, aacraid driver %d.%d.%d-%d\n",
2476                 adapter_type,
2477                 AAC_DRIVER_MAJOR_VERSION, AAC_DRIVER_MINOR_VERSION,
2478                 AAC_DRIVER_BUGFIX_LEVEL, AAC_DRIVER_BUILD);
2479
2480         fib->data[0] = 0;
2481         if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) {
2482                 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n");
2483                 aac_release_sync_fib(sc);
2484                 mtx_unlock(&sc->aac_io_lock);
2485                 return;
2486         }
2487
2488         /* save the kernel revision structure for later use */
2489         info = (struct aac_adapter_info *)&fib->data[0];
2490         sc->aac_revision = info->KernelRevision;
2491
2492         if (bootverbose) {
2493                 device_printf(sc->aac_dev, "%s %dMHz, %dMB memory "
2494                     "(%dMB cache, %dMB execution), %s\n",
2495                     aac_describe_code(aac_cpu_variant, info->CpuVariant),
2496                     info->ClockSpeed, info->TotalMem / (1024 * 1024),
2497                     info->BufferMem / (1024 * 1024),
2498                     info->ExecutionMem / (1024 * 1024),
2499                     aac_describe_code(aac_battery_platform,
2500                     info->batteryPlatform));
2501
2502                 device_printf(sc->aac_dev,
2503                     "Kernel %d.%d-%d, Build %d, S/N %6X\n",
2504                     info->KernelRevision.external.comp.major,
2505                     info->KernelRevision.external.comp.minor,
2506                     info->KernelRevision.external.comp.dash,
2507                     info->KernelRevision.buildNumber,
2508                     (u_int32_t)(info->SerialNumber & 0xffffff));
2509
2510                 device_printf(sc->aac_dev, "Supported Options=%b\n",
2511                               sc->supported_options,
2512                               "\20"
2513                               "\1SNAPSHOT"
2514                               "\2CLUSTERS"
2515                               "\3WCACHE"
2516                               "\4DATA64"
2517                               "\5HOSTTIME"
2518                               "\6RAID50"
2519                               "\7WINDOW4GB"
2520                               "\10SCSIUPGD"
2521                               "\11SOFTERR"
2522                               "\12NORECOND"
2523                               "\13SGMAP64"
2524                               "\14ALARM"
2525                               "\15NONDASD"
2526                               "\16SCSIMGT"
2527                               "\17RAIDSCSI"
2528                               "\21ADPTINFO"
2529                               "\22NEWCOMM"
2530                               "\23ARRAY64BIT"
2531                               "\24HEATSENSOR");
2532         }
2533
2534         aac_release_sync_fib(sc);
2535         mtx_unlock(&sc->aac_io_lock);
2536 }
2537
2538 /*
2539  * Look up a text description of a numeric error code and return a pointer to
2540  * same.
2541  */
2542 static char *
2543 aac_describe_code(struct aac_code_lookup *table, u_int32_t code)
2544 {
2545         int i;
2546
2547         for (i = 0; table[i].string != NULL; i++)
2548                 if (table[i].code == code)
2549                         return(table[i].string);
2550         return(table[i + 1].string);
2551 }
2552
2553 /*
2554  * Management Interface
2555  */
2556
2557 static int
2558 aac_open(struct cdev *dev, int flags, int fmt, struct thread *td)
2559 {
2560         struct aac_softc *sc;
2561
2562         sc = dev->si_drv1;
2563         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2564 #if __FreeBSD_version >= 702000
2565         device_busy(sc->aac_dev);
2566         devfs_set_cdevpriv(sc, aac_cdevpriv_dtor);
2567 #endif
2568         return 0;
2569 }
2570
2571 static int
2572 aac_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td)
2573 {
2574         union aac_statrequest *as;
2575         struct aac_softc *sc;
2576         int error = 0;
2577
2578         as = (union aac_statrequest *)arg;
2579         sc = dev->si_drv1;
2580         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2581
2582         switch (cmd) {
2583         case AACIO_STATS:
2584                 switch (as->as_item) {
2585                 case AACQ_FREE:
2586                 case AACQ_READY:
2587                 case AACQ_BUSY:
2588                         bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat,
2589                               sizeof(struct aac_qstat));
2590                         break;
2591                 default:
2592                         error = ENOENT;
2593                         break;
2594                 }
2595         break;
2596
2597         case FSACTL_SENDFIB:
2598         case FSACTL_SEND_LARGE_FIB:
2599                 arg = *(caddr_t*)arg;
2600         case FSACTL_LNX_SENDFIB:
2601         case FSACTL_LNX_SEND_LARGE_FIB:
2602                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_SENDFIB");
2603                 error = aac_ioctl_sendfib(sc, arg);
2604                 break;
2605         case FSACTL_SEND_RAW_SRB:
2606                 arg = *(caddr_t*)arg;
2607         case FSACTL_LNX_SEND_RAW_SRB:
2608                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_SEND_RAW_SRB");
2609                 error = aac_ioctl_send_raw_srb(sc, arg);
2610                 break;
2611         case FSACTL_AIF_THREAD:
2612         case FSACTL_LNX_AIF_THREAD:
2613                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_AIF_THREAD");
2614                 error = EINVAL;
2615                 break;
2616         case FSACTL_OPEN_GET_ADAPTER_FIB:
2617                 arg = *(caddr_t*)arg;
2618         case FSACTL_LNX_OPEN_GET_ADAPTER_FIB:
2619                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_OPEN_GET_ADAPTER_FIB");
2620                 error = aac_open_aif(sc, arg);
2621                 break;
2622         case FSACTL_GET_NEXT_ADAPTER_FIB:
2623                 arg = *(caddr_t*)arg;
2624         case FSACTL_LNX_GET_NEXT_ADAPTER_FIB:
2625                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_GET_NEXT_ADAPTER_FIB");
2626                 error = aac_getnext_aif(sc, arg);
2627                 break;
2628         case FSACTL_CLOSE_GET_ADAPTER_FIB:
2629                 arg = *(caddr_t*)arg;
2630         case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB:
2631                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_CLOSE_GET_ADAPTER_FIB");
2632                 error = aac_close_aif(sc, arg);
2633                 break;
2634         case FSACTL_MINIPORT_REV_CHECK:
2635                 arg = *(caddr_t*)arg;
2636         case FSACTL_LNX_MINIPORT_REV_CHECK:
2637                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_MINIPORT_REV_CHECK");
2638                 error = aac_rev_check(sc, arg);
2639                 break;
2640         case FSACTL_QUERY_DISK:
2641                 arg = *(caddr_t*)arg;
2642         case FSACTL_LNX_QUERY_DISK:
2643                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_QUERY_DISK");
2644                 error = aac_query_disk(sc, arg);
2645                 break;
2646         case FSACTL_DELETE_DISK:
2647         case FSACTL_LNX_DELETE_DISK:
2648                 /*
2649                  * We don't trust the underland to tell us when to delete a
2650                  * container, rather we rely on an AIF coming from the
2651                  * controller
2652                  */
2653                 error = 0;
2654                 break;
2655         case FSACTL_GET_PCI_INFO:
2656                 arg = *(caddr_t*)arg;
2657         case FSACTL_LNX_GET_PCI_INFO:
2658                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_GET_PCI_INFO");
2659                 error = aac_get_pci_info(sc, arg);
2660                 break;
2661         case FSACTL_GET_FEATURES:
2662                 arg = *(caddr_t*)arg;
2663         case FSACTL_LNX_GET_FEATURES:
2664                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_GET_FEATURES");
2665                 error = aac_supported_features(sc, arg);
2666                 break;
2667         default:
2668                 fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "unsupported cmd 0x%lx\n", cmd);
2669                 error = EINVAL;
2670                 break;
2671         }
2672         return(error);
2673 }
2674
2675 static int
2676 aac_poll(struct cdev *dev, int poll_events, struct thread *td)
2677 {
2678         struct aac_softc *sc;
2679         struct aac_fib_context *ctx;
2680         int revents;
2681
2682         sc = dev->si_drv1;
2683         revents = 0;
2684
2685         mtx_lock(&sc->aac_io_lock);
2686         if ((poll_events & (POLLRDNORM | POLLIN)) != 0) {
2687                 for (ctx = sc->fibctx; ctx; ctx = ctx->next) {
2688                         if (ctx->ctx_idx != sc->aifq_idx || ctx->ctx_wrap) {
2689                                 revents |= poll_events & (POLLIN | POLLRDNORM);
2690                                 break;
2691                         }
2692                 }
2693         }
2694         mtx_unlock(&sc->aac_io_lock);
2695
2696         if (revents == 0) {
2697                 if (poll_events & (POLLIN | POLLRDNORM))
2698                         selrecord(td, &sc->rcv_select);
2699         }
2700
2701         return (revents);
2702 }
2703
2704 static void
2705 aac_ioctl_event(struct aac_softc *sc, struct aac_event *event, void *arg)
2706 {
2707
2708         switch (event->ev_type) {
2709         case AAC_EVENT_CMFREE:
2710                 mtx_assert(&sc->aac_io_lock, MA_OWNED);
2711                 if (aacraid_alloc_command(sc, (struct aac_command **)arg)) {
2712                         aacraid_add_event(sc, event);
2713                         return;
2714                 }
2715                 free(event, M_AACRAIDBUF);
2716                 wakeup(arg);
2717                 break;
2718         default:
2719                 break;
2720         }
2721 }
2722
2723 /*
2724  * Send a FIB supplied from userspace
2725  */
2726 static int
2727 aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib)
2728 {
2729         struct aac_command *cm;
2730         int size, error;
2731
2732         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2733
2734         cm = NULL;
2735
2736         /*
2737          * Get a command
2738          */
2739         mtx_lock(&sc->aac_io_lock);
2740         if (aacraid_alloc_command(sc, &cm)) {
2741                 struct aac_event *event;
2742
2743                 event = malloc(sizeof(struct aac_event), M_AACRAIDBUF,
2744                     M_NOWAIT | M_ZERO);
2745                 if (event == NULL) {
2746                         error = EBUSY;
2747                         mtx_unlock(&sc->aac_io_lock);
2748                         goto out;
2749                 }
2750                 event->ev_type = AAC_EVENT_CMFREE;
2751                 event->ev_callback = aac_ioctl_event;
2752                 event->ev_arg = &cm;
2753                 aacraid_add_event(sc, event);
2754                 msleep(cm, &sc->aac_io_lock, 0, "aacraid_ctlsfib", 0);
2755         }
2756         mtx_unlock(&sc->aac_io_lock);
2757
2758         /*
2759          * Fetch the FIB header, then re-copy to get data as well.
2760          */
2761         if ((error = copyin(ufib, cm->cm_fib,
2762                             sizeof(struct aac_fib_header))) != 0)
2763                 goto out;
2764         size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header);
2765         if (size > sc->aac_max_fib_size) {
2766                 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n",
2767                               size, sc->aac_max_fib_size);
2768                 size = sc->aac_max_fib_size;
2769         }
2770         if ((error = copyin(ufib, cm->cm_fib, size)) != 0)
2771                 goto out;
2772         cm->cm_fib->Header.Size = size;
2773         cm->cm_timestamp = time_uptime;
2774         cm->cm_datalen = 0;
2775
2776         /*
2777          * Pass the FIB to the controller, wait for it to complete.
2778          */
2779         mtx_lock(&sc->aac_io_lock);
2780         error = aacraid_wait_command(cm);
2781         mtx_unlock(&sc->aac_io_lock);
2782         if (error != 0) {
2783                 device_printf(sc->aac_dev,
2784                               "aacraid_wait_command return %d\n", error);
2785                 goto out;
2786         }
2787
2788         /*
2789          * Copy the FIB and data back out to the caller.
2790          */
2791         size = cm->cm_fib->Header.Size;
2792         if (size > sc->aac_max_fib_size) {
2793                 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n",
2794                               size, sc->aac_max_fib_size);
2795                 size = sc->aac_max_fib_size;
2796         }
2797         error = copyout(cm->cm_fib, ufib, size);
2798
2799 out:
2800         if (cm != NULL) {
2801                 mtx_lock(&sc->aac_io_lock);
2802                 aacraid_release_command(cm);
2803                 mtx_unlock(&sc->aac_io_lock);
2804         }
2805         return(error);
2806 }
2807
2808 /*
2809  * Send a passthrough FIB supplied from userspace
2810  */
2811 static int
2812 aac_ioctl_send_raw_srb(struct aac_softc *sc, caddr_t arg)
2813 {
2814         struct aac_command *cm;
2815         struct aac_fib *fib;
2816         struct aac_srb *srbcmd;
2817         struct aac_srb *user_srb = (struct aac_srb *)arg;
2818         void *user_reply;
2819         int error, transfer_data = 0;
2820         bus_dmamap_t orig_map = 0;
2821         u_int32_t fibsize = 0;
2822         u_int64_t srb_sg_address;
2823         u_int32_t srb_sg_bytecount;
2824
2825         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
2826
2827         cm = NULL;
2828
2829         mtx_lock(&sc->aac_io_lock);
2830         if (aacraid_alloc_command(sc, &cm)) {
2831                 struct aac_event *event;
2832
2833                 event = malloc(sizeof(struct aac_event), M_AACRAIDBUF,
2834                     M_NOWAIT | M_ZERO);
2835                 if (event == NULL) {
2836                         error = EBUSY;
2837                         mtx_unlock(&sc->aac_io_lock);
2838                         goto out;
2839                 }
2840                 event->ev_type = AAC_EVENT_CMFREE;
2841                 event->ev_callback = aac_ioctl_event;
2842                 event->ev_arg = &cm;
2843                 aacraid_add_event(sc, event);
2844                 msleep(cm, &sc->aac_io_lock, 0, "aacraid_ctlsraw", 0);
2845         }
2846         mtx_unlock(&sc->aac_io_lock);
2847
2848         cm->cm_data = NULL;
2849         /* save original dma map */
2850         orig_map = cm->cm_datamap;
2851
2852         fib = cm->cm_fib;
2853         srbcmd = (struct aac_srb *)fib->data;
2854         if ((error = copyin((void *)&user_srb->data_len, &fibsize,
2855                 sizeof (u_int32_t)) != 0))
2856                 goto out;
2857         if (fibsize > (sc->aac_max_fib_size-sizeof(struct aac_fib_header))) {
2858                 error = EINVAL;
2859                 goto out;
2860         }
2861         if ((error = copyin((void *)user_srb, srbcmd, fibsize) != 0))
2862                 goto out;
2863
2864         srbcmd->function = 0;           /* SRBF_ExecuteScsi */
2865         srbcmd->retry_limit = 0;        /* obsolete */
2866
2867         /* only one sg element from userspace supported */
2868         if (srbcmd->sg_map.SgCount > 1) {
2869                 error = EINVAL;
2870                 goto out;
2871         }
2872         /* check fibsize */
2873         if (fibsize == (sizeof(struct aac_srb) +
2874                 srbcmd->sg_map.SgCount * sizeof(struct aac_sg_entry))) {
2875                 struct aac_sg_entry *sgp = srbcmd->sg_map.SgEntry;
2876                 srb_sg_bytecount = sgp->SgByteCount;
2877                 srb_sg_address = (u_int64_t)sgp->SgAddress;
2878         } else if (fibsize == (sizeof(struct aac_srb) +
2879                 srbcmd->sg_map.SgCount * sizeof(struct aac_sg_entry64))) {
2880 #ifdef __LP64__
2881                 struct aac_sg_entry64 *sgp =
2882                         (struct aac_sg_entry64 *)srbcmd->sg_map.SgEntry;
2883                 srb_sg_bytecount = sgp->SgByteCount;
2884                 srb_sg_address = sgp->SgAddress;
2885                 if (srb_sg_address > 0xffffffffull &&
2886                         !(sc->flags & AAC_FLAGS_SG_64BIT))
2887 #endif
2888                 {
2889                         error = EINVAL;
2890                         goto out;
2891                 }
2892         } else {
2893                 error = EINVAL;
2894                 goto out;
2895         }
2896         user_reply = (char *)arg + fibsize;
2897         srbcmd->data_len = srb_sg_bytecount;
2898         if (srbcmd->sg_map.SgCount == 1)
2899                 transfer_data = 1;
2900
2901         if (transfer_data) {
2902                 /*
2903                  * Create DMA tag for the passthr. data buffer and allocate it.
2904                  */
2905                 if (bus_dma_tag_create(sc->aac_parent_dmat,     /* parent */
2906                         1, 0,                   /* algnmnt, boundary */
2907                         (sc->flags & AAC_FLAGS_SG_64BIT) ?
2908                         BUS_SPACE_MAXADDR_32BIT :
2909                         0x7fffffff,             /* lowaddr */
2910                         BUS_SPACE_MAXADDR,      /* highaddr */
2911                         NULL, NULL,             /* filter, filterarg */
2912                         srb_sg_bytecount,       /* size */
2913                         sc->aac_sg_tablesize,   /* nsegments */
2914                         srb_sg_bytecount,       /* maxsegsize */
2915                         0,                      /* flags */
2916                         NULL, NULL,             /* No locking needed */
2917                         &cm->cm_passthr_dmat)) {
2918                         error = ENOMEM;
2919                         goto out;
2920                 }
2921                 if (bus_dmamem_alloc(cm->cm_passthr_dmat, (void **)&cm->cm_data,
2922                         BUS_DMA_NOWAIT, &cm->cm_datamap)) {
2923                         error = ENOMEM;
2924                         goto out;
2925                 }
2926                 /* fill some cm variables */
2927                 cm->cm_datalen = srb_sg_bytecount;
2928                 if (srbcmd->flags & AAC_SRB_FLAGS_DATA_IN)
2929                         cm->cm_flags |= AAC_CMD_DATAIN;
2930                 if (srbcmd->flags & AAC_SRB_FLAGS_DATA_OUT)
2931                         cm->cm_flags |= AAC_CMD_DATAOUT;
2932
2933                 if (srbcmd->flags & AAC_SRB_FLAGS_DATA_OUT) {
2934                         if ((error = copyin((void *)(uintptr_t)srb_sg_address,
2935                                 cm->cm_data, cm->cm_datalen)) != 0)
2936                                 goto out;
2937                         /* sync required for bus_dmamem_alloc() alloc. mem.? */
2938                         bus_dmamap_sync(cm->cm_passthr_dmat, cm->cm_datamap,
2939                                 BUS_DMASYNC_PREWRITE);
2940                 }
2941         }
2942
2943         /* build the FIB */
2944         fib->Header.Size = sizeof(struct aac_fib_header) +
2945                 sizeof(struct aac_srb);
2946         fib->Header.XferState =
2947                 AAC_FIBSTATE_HOSTOWNED   |
2948                 AAC_FIBSTATE_INITIALISED |
2949                 AAC_FIBSTATE_EMPTY       |
2950                 AAC_FIBSTATE_FROMHOST    |
2951                 AAC_FIBSTATE_REXPECTED   |
2952                 AAC_FIBSTATE_NORM        |
2953                 AAC_FIBSTATE_ASYNC;
2954
2955         fib->Header.Command = (sc->flags & AAC_FLAGS_SG_64BIT) ?
2956                 ScsiPortCommandU64 : ScsiPortCommand;
2957         cm->cm_sgtable = (struct aac_sg_table *)&srbcmd->sg_map;
2958
2959         /* send command */
2960         if (transfer_data) {
2961                 bus_dmamap_load(cm->cm_passthr_dmat,
2962                         cm->cm_datamap, cm->cm_data,
2963                         cm->cm_datalen,
2964                         aacraid_map_command_sg, cm, 0);
2965         } else {
2966                 aacraid_map_command_sg(cm, NULL, 0, 0);
2967         }
2968
2969         /* wait for completion */
2970         mtx_lock(&sc->aac_io_lock);
2971         while (!(cm->cm_flags & AAC_CMD_COMPLETED))
2972                 msleep(cm, &sc->aac_io_lock, 0, "aacraid_ctlsrw2", 0);
2973         mtx_unlock(&sc->aac_io_lock);
2974
2975         /* copy data */
2976         if (transfer_data && (srbcmd->flags & AAC_SRB_FLAGS_DATA_IN)) {
2977                 if ((error = copyout(cm->cm_data,
2978                         (void *)(uintptr_t)srb_sg_address,
2979                         cm->cm_datalen)) != 0)
2980                         goto out;
2981                 /* sync required for bus_dmamem_alloc() allocated mem.? */
2982                 bus_dmamap_sync(cm->cm_passthr_dmat, cm->cm_datamap,
2983                                 BUS_DMASYNC_POSTREAD);
2984         }
2985
2986         /* status */
2987         error = copyout(fib->data, user_reply, sizeof(struct aac_srb_response));
2988
2989 out:
2990         if (cm && cm->cm_data) {
2991                 if (transfer_data)
2992                         bus_dmamap_unload(cm->cm_passthr_dmat, cm->cm_datamap);
2993                 bus_dmamem_free(cm->cm_passthr_dmat, cm->cm_data, cm->cm_datamap);
2994                 cm->cm_datamap = orig_map;
2995         }
2996         if (cm && cm->cm_passthr_dmat)
2997                 bus_dma_tag_destroy(cm->cm_passthr_dmat);
2998         if (cm) {
2999                 mtx_lock(&sc->aac_io_lock);
3000                 aacraid_release_command(cm);
3001                 mtx_unlock(&sc->aac_io_lock);
3002         }
3003         return(error);
3004 }
3005
3006 /*
3007  * Request an AIF from the controller (new comm. type1)
3008  */
3009 static void
3010 aac_request_aif(struct aac_softc *sc)
3011 {
3012         struct aac_command *cm;
3013         struct aac_fib *fib;
3014
3015         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3016
3017         if (aacraid_alloc_command(sc, &cm)) {
3018                 sc->aif_pending = 1;
3019                 return;
3020         }
3021         sc->aif_pending = 0;
3022
3023         /* build the FIB */
3024         fib = cm->cm_fib;
3025         fib->Header.Size = sizeof(struct aac_fib);
3026         fib->Header.XferState =
3027         AAC_FIBSTATE_HOSTOWNED   |
3028         AAC_FIBSTATE_INITIALISED |
3029         AAC_FIBSTATE_EMPTY       |
3030         AAC_FIBSTATE_FROMHOST    |
3031         AAC_FIBSTATE_REXPECTED   |
3032         AAC_FIBSTATE_NORM        |
3033         AAC_FIBSTATE_ASYNC;
3034         /* set AIF marker */
3035         fib->Header.Handle = 0x00800000;
3036         fib->Header.Command = AifRequest;
3037         ((struct aac_aif_command *)fib->data)->command = AifReqEvent;
3038
3039         aacraid_map_command_sg(cm, NULL, 0, 0);
3040 }
3041
3042
3043 #if __FreeBSD_version >= 702000
3044 /*
3045  * cdevpriv interface private destructor.
3046  */
3047 static void
3048 aac_cdevpriv_dtor(void *arg)
3049 {
3050         struct aac_softc *sc;
3051
3052         sc = arg;
3053         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3054         mtx_lock(&Giant);
3055         device_unbusy(sc->aac_dev);
3056         mtx_unlock(&Giant);
3057 }
3058 #else
3059 static int
3060 aac_close(struct cdev *dev, int flags, int fmt, struct thread *td)
3061 {
3062         struct aac_softc *sc;
3063
3064         sc = dev->si_drv1;
3065         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3066         return 0;
3067 }
3068 #endif
3069
3070 /*
3071  * Handle an AIF sent to us by the controller; queue it for later reference.
3072  * If the queue fills up, then drop the older entries.
3073  */
3074 static void
3075 aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib)
3076 {
3077         struct aac_aif_command *aif;
3078         struct aac_container *co, *co_next;
3079         struct aac_fib_context *ctx;
3080         struct aac_fib *sync_fib;
3081         struct aac_mntinforesp mir;
3082         int next, current, found;
3083         int count = 0, changed = 0, i = 0;
3084         u_int32_t channel, uid;
3085
3086         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3087
3088         aif = (struct aac_aif_command*)&fib->data[0];
3089         aacraid_print_aif(sc, aif);
3090
3091         /* Is it an event that we should care about? */
3092         switch (aif->command) {
3093         case AifCmdEventNotify:
3094                 switch (aif->data.EN.type) {
3095                 case AifEnAddContainer:
3096                 case AifEnDeleteContainer:
3097                         /*
3098                          * A container was added or deleted, but the message
3099                          * doesn't tell us anything else!  Re-enumerate the
3100                          * containers and sort things out.
3101                          */
3102                         aac_alloc_sync_fib(sc, &sync_fib);
3103                         do {
3104                                 /*
3105                                  * Ask the controller for its containers one at
3106                                  * a time.
3107                                  * XXX What if the controller's list changes
3108                                  * midway through this enumaration?
3109                                  * XXX This should be done async.
3110                                  */
3111                                 if (aac_get_container_info(sc, sync_fib, i,
3112                                         &mir, &uid) != 0)
3113                                         continue;
3114                                 if (i == 0)
3115                                         count = mir.MntRespCount;
3116                                 /*
3117                                  * Check the container against our list.
3118                                  * co->co_found was already set to 0 in a
3119                                  * previous run.
3120                                  */
3121                                 if ((mir.Status == ST_OK) &&
3122                                     (mir.MntTable[0].VolType != CT_NONE)) {
3123                                         found = 0;
3124                                         TAILQ_FOREACH(co,
3125                                                       &sc->aac_container_tqh,
3126                                                       co_link) {
3127                                                 if (co->co_mntobj.ObjectId ==
3128                                                     mir.MntTable[0].ObjectId) {
3129                                                         co->co_found = 1;
3130                                                         found = 1;
3131                                                         break;
3132                                                 }
3133                                         }
3134                                         /*
3135                                          * If the container matched, continue
3136                                          * in the list.
3137                                          */
3138                                         if (found) {
3139                                                 i++;
3140                                                 continue;
3141                                         }
3142
3143                                         /*
3144                                          * This is a new container.  Do all the
3145                                          * appropriate things to set it up.
3146                                          */
3147                                         aac_add_container(sc, &mir, 1, uid);
3148                                         changed = 1;
3149                                 }
3150                                 i++;
3151                         } while ((i < count) && (i < AAC_MAX_CONTAINERS));
3152                         aac_release_sync_fib(sc);
3153
3154                         /*
3155                          * Go through our list of containers and see which ones
3156                          * were not marked 'found'.  Since the controller didn't
3157                          * list them they must have been deleted.  Do the
3158                          * appropriate steps to destroy the device.  Also reset
3159                          * the co->co_found field.
3160                          */
3161                         co = TAILQ_FIRST(&sc->aac_container_tqh);
3162                         while (co != NULL) {
3163                                 if (co->co_found == 0) {
3164                                         co_next = TAILQ_NEXT(co, co_link);
3165                                         TAILQ_REMOVE(&sc->aac_container_tqh, co,
3166                                                      co_link);
3167                                         free(co, M_AACRAIDBUF);
3168                                         changed = 1;
3169                                         co = co_next;
3170                                 } else {
3171                                         co->co_found = 0;
3172                                         co = TAILQ_NEXT(co, co_link);
3173                                 }
3174                         }
3175
3176                         /* Attach the newly created containers */
3177                         if (changed) {
3178                                 if (sc->cam_rescan_cb != NULL)
3179                                         sc->cam_rescan_cb(sc, 0,
3180                                         AAC_CAM_TARGET_WILDCARD);
3181                         }
3182
3183                         break;
3184
3185                 case AifEnEnclosureManagement:
3186                         switch (aif->data.EN.data.EEE.eventType) {
3187                         case AIF_EM_DRIVE_INSERTION:
3188                         case AIF_EM_DRIVE_REMOVAL:
3189                                 channel = aif->data.EN.data.EEE.unitID;
3190                                 if (sc->cam_rescan_cb != NULL)
3191                                         sc->cam_rescan_cb(sc,
3192                                             ((channel>>24) & 0xF) + 1,
3193                                             (channel & 0xFFFF));
3194                                 break;
3195                         }
3196                         break;
3197
3198                 case AifEnAddJBOD:
3199                 case AifEnDeleteJBOD:
3200                 case AifRawDeviceRemove:
3201                         channel = aif->data.EN.data.ECE.container;
3202                         if (sc->cam_rescan_cb != NULL)
3203                                 sc->cam_rescan_cb(sc, ((channel>>24) & 0xF) + 1,
3204                                     AAC_CAM_TARGET_WILDCARD);
3205                         break;
3206
3207                 default:
3208                         break;
3209                 }
3210
3211         default:
3212                 break;
3213         }
3214
3215         /* Copy the AIF data to the AIF queue for ioctl retrieval */
3216         current = sc->aifq_idx;
3217         next = (current + 1) % AAC_AIFQ_LENGTH;
3218         if (next == 0)
3219                 sc->aifq_filled = 1;
3220         bcopy(fib, &sc->aac_aifq[current], sizeof(struct aac_fib));
3221         /* modify AIF contexts */
3222         if (sc->aifq_filled) {
3223                 for (ctx = sc->fibctx; ctx; ctx = ctx->next) {
3224                         if (next == ctx->ctx_idx)
3225                                 ctx->ctx_wrap = 1;
3226                         else if (current == ctx->ctx_idx && ctx->ctx_wrap)
3227                                 ctx->ctx_idx = next;
3228                 }
3229         }
3230         sc->aifq_idx = next;
3231         /* On the off chance that someone is sleeping for an aif... */
3232         if (sc->aac_state & AAC_STATE_AIF_SLEEPER)
3233                 wakeup(sc->aac_aifq);
3234         /* Wakeup any poll()ers */
3235         selwakeuppri(&sc->rcv_select, PRIBIO);
3236
3237         return;
3238 }
3239
3240 /*
3241  * Return the Revision of the driver to userspace and check to see if the
3242  * userspace app is possibly compatible.  This is extremely bogus since
3243  * our driver doesn't follow Adaptec's versioning system.  Cheat by just
3244  * returning what the card reported.
3245  */
3246 static int
3247 aac_rev_check(struct aac_softc *sc, caddr_t udata)
3248 {
3249         struct aac_rev_check rev_check;
3250         struct aac_rev_check_resp rev_check_resp;
3251         int error = 0;
3252
3253         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3254
3255         /*
3256          * Copyin the revision struct from userspace
3257          */
3258         if ((error = copyin(udata, (caddr_t)&rev_check,
3259                         sizeof(struct aac_rev_check))) != 0) {
3260                 return error;
3261         }
3262
3263         fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "Userland revision= %d\n",
3264               rev_check.callingRevision.buildNumber);
3265
3266         /*
3267          * Doctor up the response struct.
3268          */
3269         rev_check_resp.possiblyCompatible = 1;
3270         rev_check_resp.adapterSWRevision.external.comp.major =
3271             AAC_DRIVER_MAJOR_VERSION;
3272         rev_check_resp.adapterSWRevision.external.comp.minor =
3273             AAC_DRIVER_MINOR_VERSION;
3274         rev_check_resp.adapterSWRevision.external.comp.type =
3275             AAC_DRIVER_TYPE;
3276         rev_check_resp.adapterSWRevision.external.comp.dash =
3277             AAC_DRIVER_BUGFIX_LEVEL;
3278         rev_check_resp.adapterSWRevision.buildNumber =
3279             AAC_DRIVER_BUILD;
3280
3281         return(copyout((caddr_t)&rev_check_resp, udata,
3282                         sizeof(struct aac_rev_check_resp)));
3283 }
3284
3285 /*
3286  * Pass the fib context to the caller
3287  */
3288 static int
3289 aac_open_aif(struct aac_softc *sc, caddr_t arg)
3290 {
3291         struct aac_fib_context *fibctx, *ctx;
3292         int error = 0;
3293
3294         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3295
3296         fibctx = malloc(sizeof(struct aac_fib_context), M_AACRAIDBUF, M_NOWAIT|M_ZERO);
3297         if (fibctx == NULL)
3298                 return (ENOMEM);
3299
3300         mtx_lock(&sc->aac_io_lock);
3301         /* all elements are already 0, add to queue */
3302         if (sc->fibctx == NULL)
3303                 sc->fibctx = fibctx;
3304         else {
3305                 for (ctx = sc->fibctx; ctx->next; ctx = ctx->next)
3306                         ;
3307                 ctx->next = fibctx;
3308                 fibctx->prev = ctx;
3309         }
3310
3311         /* evaluate unique value */
3312         fibctx->unique = (*(u_int32_t *)&fibctx & 0xffffffff);
3313         ctx = sc->fibctx;
3314         while (ctx != fibctx) {
3315                 if (ctx->unique == fibctx->unique) {
3316                         fibctx->unique++;
3317                         ctx = sc->fibctx;
3318                 } else {
3319                         ctx = ctx->next;
3320                 }
3321         }
3322
3323         error = copyout(&fibctx->unique, (void *)arg, sizeof(u_int32_t));
3324         mtx_unlock(&sc->aac_io_lock);
3325         if (error)
3326                 aac_close_aif(sc, (caddr_t)ctx);
3327         return error;
3328 }
3329
3330 /*
3331  * Close the caller's fib context
3332  */
3333 static int
3334 aac_close_aif(struct aac_softc *sc, caddr_t arg)
3335 {
3336         struct aac_fib_context *ctx;
3337
3338         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3339
3340         mtx_lock(&sc->aac_io_lock);
3341         for (ctx = sc->fibctx; ctx; ctx = ctx->next) {
3342                 if (ctx->unique == *(uint32_t *)&arg) {
3343                         if (ctx == sc->fibctx)
3344                                 sc->fibctx = NULL;
3345                         else {
3346                                 ctx->prev->next = ctx->next;
3347                                 if (ctx->next)
3348                                         ctx->next->prev = ctx->prev;
3349                         }
3350                         break;
3351                 }
3352         }
3353         if (ctx)
3354                 free(ctx, M_AACRAIDBUF);
3355
3356         mtx_unlock(&sc->aac_io_lock);
3357         return 0;
3358 }
3359
3360 /*
3361  * Pass the caller the next AIF in their queue
3362  */
3363 static int
3364 aac_getnext_aif(struct aac_softc *sc, caddr_t arg)
3365 {
3366         struct get_adapter_fib_ioctl agf;
3367         struct aac_fib_context *ctx;
3368         int error;
3369
3370         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3371
3372         mtx_lock(&sc->aac_io_lock);
3373         if ((error = copyin(arg, &agf, sizeof(agf))) == 0) {
3374                 for (ctx = sc->fibctx; ctx; ctx = ctx->next) {
3375                         if (agf.AdapterFibContext == ctx->unique)
3376                                 break;
3377                 }
3378                 if (!ctx) {
3379                         mtx_unlock(&sc->aac_io_lock);
3380                         return (EFAULT);
3381                 }
3382
3383                 error = aac_return_aif(sc, ctx, agf.AifFib);
3384                 if (error == EAGAIN && agf.Wait) {
3385                         fwprintf(sc, HBA_FLAGS_DBG_AIF_B, "aac_getnext_aif(): waiting for AIF");
3386                         sc->aac_state |= AAC_STATE_AIF_SLEEPER;
3387                         while (error == EAGAIN) {
3388                                 mtx_unlock(&sc->aac_io_lock);
3389                                 error = tsleep(sc->aac_aifq, PRIBIO |
3390                                                PCATCH, "aacaif", 0);
3391                                 mtx_lock(&sc->aac_io_lock);
3392                                 if (error == 0)
3393                                         error = aac_return_aif(sc, ctx, agf.AifFib);
3394                         }
3395                         sc->aac_state &= ~AAC_STATE_AIF_SLEEPER;
3396                 }
3397         }
3398         mtx_unlock(&sc->aac_io_lock);
3399         return(error);
3400 }
3401
3402 /*
3403  * Hand the next AIF off the top of the queue out to userspace.
3404  */
3405 static int
3406 aac_return_aif(struct aac_softc *sc, struct aac_fib_context *ctx, caddr_t uptr)
3407 {
3408         int current, error;
3409
3410         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3411
3412         current = ctx->ctx_idx;
3413         if (current == sc->aifq_idx && !ctx->ctx_wrap) {
3414                 /* empty */
3415                 return (EAGAIN);
3416         }
3417         error =
3418                 copyout(&sc->aac_aifq[current], (void *)uptr, sizeof(struct aac_fib));
3419         if (error)
3420                 device_printf(sc->aac_dev,
3421                     "aac_return_aif: copyout returned %d\n", error);
3422         else {
3423                 ctx->ctx_wrap = 0;
3424                 ctx->ctx_idx = (current + 1) % AAC_AIFQ_LENGTH;
3425         }
3426         return(error);
3427 }
3428
3429 static int
3430 aac_get_pci_info(struct aac_softc *sc, caddr_t uptr)
3431 {
3432         struct aac_pci_info {
3433                 u_int32_t bus;
3434                 u_int32_t slot;
3435         } pciinf;
3436         int error;
3437
3438         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3439
3440         pciinf.bus = pci_get_bus(sc->aac_dev);
3441         pciinf.slot = pci_get_slot(sc->aac_dev);
3442
3443         error = copyout((caddr_t)&pciinf, uptr,
3444                         sizeof(struct aac_pci_info));
3445
3446         return (error);
3447 }
3448
3449 static int
3450 aac_supported_features(struct aac_softc *sc, caddr_t uptr)
3451 {
3452         struct aac_features f;
3453         int error;
3454
3455         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3456
3457         if ((error = copyin(uptr, &f, sizeof (f))) != 0)
3458                 return (error);
3459
3460         /*
3461          * When the management driver receives FSACTL_GET_FEATURES ioctl with
3462          * ALL zero in the featuresState, the driver will return the current
3463          * state of all the supported features, the data field will not be
3464          * valid.
3465          * When the management driver receives FSACTL_GET_FEATURES ioctl with
3466          * a specific bit set in the featuresState, the driver will return the
3467          * current state of this specific feature and whatever data that are
3468          * associated with the feature in the data field or perform whatever
3469          * action needed indicates in the data field.
3470          */
3471          if (f.feat.fValue == 0) {
3472                 f.feat.fBits.largeLBA =
3473                     (sc->flags & AAC_FLAGS_LBA_64BIT) ? 1 : 0;
3474                 f.feat.fBits.JBODSupport = 1;
3475                 /* TODO: In the future, add other features state here as well */
3476         } else {
3477                 if (f.feat.fBits.largeLBA)
3478                         f.feat.fBits.largeLBA =
3479                             (sc->flags & AAC_FLAGS_LBA_64BIT) ? 1 : 0;
3480                 /* TODO: Add other features state and data in the future */
3481         }
3482
3483         error = copyout(&f, uptr, sizeof (f));
3484         return (error);
3485 }
3486
3487 /*
3488  * Give the userland some information about the container.  The AAC arch
3489  * expects the driver to be a SCSI passthrough type driver, so it expects
3490  * the containers to have b:t:l numbers.  Fake it.
3491  */
3492 static int
3493 aac_query_disk(struct aac_softc *sc, caddr_t uptr)
3494 {
3495         struct aac_query_disk query_disk;
3496         struct aac_container *co;
3497         int error, id;
3498
3499         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3500
3501         mtx_lock(&sc->aac_io_lock);
3502         error = copyin(uptr, (caddr_t)&query_disk,
3503                        sizeof(struct aac_query_disk));
3504         if (error) {
3505                 mtx_unlock(&sc->aac_io_lock);
3506                 return (error);
3507         }
3508
3509         id = query_disk.ContainerNumber;
3510         if (id == -1) {
3511                 mtx_unlock(&sc->aac_io_lock);
3512                 return (EINVAL);
3513         }
3514
3515         TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) {
3516                 if (co->co_mntobj.ObjectId == id)
3517                         break;
3518                 }
3519
3520         if (co == NULL) {
3521                         query_disk.Valid = 0;
3522                         query_disk.Locked = 0;
3523                         query_disk.Deleted = 1;         /* XXX is this right? */
3524         } else {
3525                 query_disk.Valid = 1;
3526                 query_disk.Locked = 1;
3527                 query_disk.Deleted = 0;
3528                 query_disk.Bus = device_get_unit(sc->aac_dev);
3529                 query_disk.Target = 0;
3530                 query_disk.Lun = 0;
3531                 query_disk.UnMapped = 0;
3532         }
3533
3534         error = copyout((caddr_t)&query_disk, uptr,
3535                         sizeof(struct aac_query_disk));
3536
3537         mtx_unlock(&sc->aac_io_lock);
3538         return (error);
3539 }
3540
3541 static void
3542 aac_container_bus(struct aac_softc *sc)
3543 {
3544         struct aac_sim *sim;
3545         device_t child;
3546
3547         sim =(struct aac_sim *)malloc(sizeof(struct aac_sim),
3548                 M_AACRAIDBUF, M_NOWAIT | M_ZERO);
3549         if (sim == NULL) {
3550                 device_printf(sc->aac_dev,
3551                 "No memory to add container bus\n");
3552                 panic("Out of memory?!");
3553         };
3554         child = device_add_child(sc->aac_dev, "aacraidp", -1);
3555         if (child == NULL) {
3556                 device_printf(sc->aac_dev,
3557                 "device_add_child failed for container bus\n");
3558                 free(sim, M_AACRAIDBUF);
3559                 panic("Out of memory?!");
3560         }
3561
3562         sim->TargetsPerBus = AAC_MAX_CONTAINERS;
3563         sim->BusNumber = 0;
3564         sim->BusType = CONTAINER_BUS;
3565         sim->InitiatorBusId = -1;
3566         sim->aac_sc = sc;
3567         sim->sim_dev = child;
3568         sim->aac_cam = NULL;
3569
3570         device_set_ivars(child, sim);
3571         device_set_desc(child, "Container Bus");
3572         TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, sim, sim_link);
3573         /*
3574         device_set_desc(child, aac_describe_code(aac_container_types,
3575                         mir->MntTable[0].VolType));
3576         */
3577         bus_generic_attach(sc->aac_dev);
3578 }
3579
3580 static void
3581 aac_get_bus_info(struct aac_softc *sc)
3582 {
3583         struct aac_fib *fib;
3584         struct aac_ctcfg *c_cmd;
3585         struct aac_ctcfg_resp *c_resp;
3586         struct aac_vmioctl *vmi;
3587         struct aac_vmi_businf_resp *vmi_resp;
3588         struct aac_getbusinf businfo;
3589         struct aac_sim *caminf;
3590         device_t child;
3591         int i, error;
3592
3593         mtx_lock(&sc->aac_io_lock);
3594         aac_alloc_sync_fib(sc, &fib);
3595         c_cmd = (struct aac_ctcfg *)&fib->data[0];
3596         bzero(c_cmd, sizeof(struct aac_ctcfg));
3597
3598         c_cmd->Command = VM_ContainerConfig;
3599         c_cmd->cmd = CT_GET_SCSI_METHOD;
3600         c_cmd->param = 0;
3601
3602         error = aac_sync_fib(sc, ContainerCommand, 0, fib,
3603             sizeof(struct aac_ctcfg));
3604         if (error) {
3605                 device_printf(sc->aac_dev, "Error %d sending "
3606                     "VM_ContainerConfig command\n", error);
3607                 aac_release_sync_fib(sc);
3608                 mtx_unlock(&sc->aac_io_lock);
3609                 return;
3610         }
3611
3612         c_resp = (struct aac_ctcfg_resp *)&fib->data[0];
3613         if (c_resp->Status != ST_OK) {
3614                 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n",
3615                     c_resp->Status);
3616                 aac_release_sync_fib(sc);
3617                 mtx_unlock(&sc->aac_io_lock);
3618                 return;
3619         }
3620
3621         sc->scsi_method_id = c_resp->param;
3622
3623         vmi = (struct aac_vmioctl *)&fib->data[0];
3624         bzero(vmi, sizeof(struct aac_vmioctl));
3625
3626         vmi->Command = VM_Ioctl;
3627         vmi->ObjType = FT_DRIVE;
3628         vmi->MethId = sc->scsi_method_id;
3629         vmi->ObjId = 0;
3630         vmi->IoctlCmd = GetBusInfo;
3631
3632         error = aac_sync_fib(sc, ContainerCommand, 0, fib,
3633             sizeof(struct aac_vmi_businf_resp));
3634         if (error) {
3635                 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n",
3636                     error);
3637                 aac_release_sync_fib(sc);
3638                 mtx_unlock(&sc->aac_io_lock);
3639                 return;
3640         }
3641
3642         vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0];
3643         if (vmi_resp->Status != ST_OK) {
3644                 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n",
3645                     vmi_resp->Status);
3646                 aac_release_sync_fib(sc);
3647                 mtx_unlock(&sc->aac_io_lock);
3648                 return;
3649         }
3650
3651         bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf));
3652         aac_release_sync_fib(sc);
3653         mtx_unlock(&sc->aac_io_lock);
3654
3655         for (i = 0; i < businfo.BusCount; i++) {
3656                 if (businfo.BusValid[i] != AAC_BUS_VALID)
3657                         continue;
3658
3659                 caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim),
3660                     M_AACRAIDBUF, M_NOWAIT | M_ZERO);
3661                 if (caminf == NULL) {
3662                         device_printf(sc->aac_dev,
3663                             "No memory to add passthrough bus %d\n", i);
3664                         break;
3665                 };
3666
3667                 child = device_add_child(sc->aac_dev, "aacraidp", -1);
3668                 if (child == NULL) {
3669                         device_printf(sc->aac_dev,
3670                             "device_add_child failed for passthrough bus %d\n",
3671                             i);
3672                         free(caminf, M_AACRAIDBUF);
3673                         break;
3674                 }
3675
3676                 caminf->TargetsPerBus = businfo.TargetsPerBus;
3677                 caminf->BusNumber = i+1;
3678                 caminf->BusType = PASSTHROUGH_BUS;
3679                 caminf->InitiatorBusId = businfo.InitiatorBusId[i];
3680                 caminf->aac_sc = sc;
3681                 caminf->sim_dev = child;
3682                 caminf->aac_cam = NULL;
3683
3684                 device_set_ivars(child, caminf);
3685                 device_set_desc(child, "SCSI Passthrough Bus");
3686                 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link);
3687         }
3688 }
3689
3690 /*
3691  * Check to see if the kernel is up and running. If we are in a
3692  * BlinkLED state, return the BlinkLED code.
3693  */
3694 static u_int32_t
3695 aac_check_adapter_health(struct aac_softc *sc, u_int8_t *bled)
3696 {
3697         u_int32_t ret;
3698
3699         ret = AAC_GET_FWSTATUS(sc);
3700
3701         if (ret & AAC_UP_AND_RUNNING)
3702                 ret = 0;
3703         else if (ret & AAC_KERNEL_PANIC && bled)
3704                 *bled = (ret >> 16) & 0xff;
3705
3706         return (ret);
3707 }
3708
3709 /*
3710  * Once do an IOP reset, basically have to re-initialize the card as
3711  * if coming up from a cold boot, and the driver is responsible for
3712  * any IO that was outstanding to the adapter at the time of the IOP
3713  * RESET. And prepare the driver for IOP RESET by making the init code
3714  * modular with the ability to call it from multiple places.
3715  */
3716 static int
3717 aac_reset_adapter(struct aac_softc *sc)
3718 {
3719         struct aac_command *cm;
3720         struct aac_fib *fib;
3721         struct aac_pause_command *pc;
3722         u_int32_t status, reset_mask, waitCount, max_msix_orig;
3723         int msi_enabled_orig;
3724
3725         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3726         mtx_assert(&sc->aac_io_lock, MA_OWNED);
3727
3728         if (sc->aac_state & AAC_STATE_RESET) {
3729                 device_printf(sc->aac_dev, "aac_reset_adapter() already in progress\n");
3730                 return (EINVAL);
3731         }
3732         sc->aac_state |= AAC_STATE_RESET;
3733
3734         /* disable interrupt */
3735         AAC_ACCESS_DEVREG(sc, AAC_DISABLE_INTERRUPT);
3736
3737         /*
3738          * Abort all pending commands:
3739          * a) on the controller
3740          */
3741         while ((cm = aac_dequeue_busy(sc)) != NULL) {
3742                 cm->cm_flags |= AAC_CMD_RESET;
3743
3744                 /* is there a completion handler? */
3745                 if (cm->cm_complete != NULL) {
3746                         cm->cm_complete(cm);
3747                 } else {
3748                         /* assume that someone is sleeping on this
3749                          * command
3750                          */
3751                         wakeup(cm);
3752                 }
3753         }
3754
3755         /* b) in the waiting queues */
3756         while ((cm = aac_dequeue_ready(sc)) != NULL) {
3757                 cm->cm_flags |= AAC_CMD_RESET;
3758
3759                 /* is there a completion handler? */
3760                 if (cm->cm_complete != NULL) {
3761                         cm->cm_complete(cm);
3762                 } else {
3763                         /* assume that someone is sleeping on this
3764                          * command
3765                          */
3766                         wakeup(cm);
3767                 }
3768         }
3769
3770         /* flush drives */
3771         if (aac_check_adapter_health(sc, NULL) == 0) {
3772                 mtx_unlock(&sc->aac_io_lock);
3773                 (void) aacraid_shutdown(sc->aac_dev);
3774                 mtx_lock(&sc->aac_io_lock);
3775         }
3776
3777         /* execute IOP reset */
3778         if (sc->aac_support_opt2 & AAC_SUPPORTED_MU_RESET) {
3779                 AAC_MEM0_SETREG4(sc, AAC_IRCSR, AAC_IRCSR_CORES_RST);
3780
3781                 /* We need to wait for 5 seconds before accessing the MU again
3782                  * 10000 * 100us = 1000,000us = 1000ms = 1s
3783                  */
3784                 waitCount = 5 * 10000;
3785                 while (waitCount) {
3786                         DELAY(100);                     /* delay 100 microseconds */
3787                         waitCount--;
3788                 }
3789         } else if ((aacraid_sync_command(sc,
3790                 AAC_IOP_RESET_ALWAYS, 0, 0, 0, 0, &status, &reset_mask)) != 0) {
3791                 /* call IOP_RESET for older firmware */
3792                 if ((aacraid_sync_command(sc,
3793                         AAC_IOP_RESET, 0, 0, 0, 0, &status, NULL)) != 0) {
3794
3795                         if (status == AAC_SRB_STS_INVALID_REQUEST)
3796                                 device_printf(sc->aac_dev, "IOP_RESET not supported\n");
3797                         else
3798                                 /* probably timeout */
3799                                 device_printf(sc->aac_dev, "IOP_RESET failed\n");
3800
3801                         /* unwind aac_shutdown() */
3802                         aac_alloc_sync_fib(sc, &fib);
3803                         pc = (struct aac_pause_command *)&fib->data[0];
3804                         pc->Command = VM_ContainerConfig;
3805                         pc->Type = CT_PAUSE_IO;
3806                         pc->Timeout = 1;
3807                         pc->Min = 1;
3808                         pc->NoRescan = 1;
3809
3810                         (void) aac_sync_fib(sc, ContainerCommand, 0, fib,
3811                                 sizeof (struct aac_pause_command));
3812                         aac_release_sync_fib(sc);
3813
3814                         goto finish;
3815                 }
3816         } else if (sc->aac_support_opt2 & AAC_SUPPORTED_DOORBELL_RESET) {
3817                 AAC_MEM0_SETREG4(sc, AAC_SRC_IDBR, reset_mask);
3818                 /*
3819                  * We need to wait for 5 seconds before accessing the doorbell
3820                  * again, 10000 * 100us = 1000,000us = 1000ms = 1s
3821                  */
3822                 waitCount = 5 * 10000;
3823                 while (waitCount) {
3824                         DELAY(100);             /* delay 100 microseconds */
3825                         waitCount--;
3826                 }
3827         }
3828
3829         /*
3830          * Initialize the adapter.
3831          */
3832         max_msix_orig = sc->aac_max_msix;
3833         msi_enabled_orig = sc->msi_enabled;
3834         sc->msi_enabled = FALSE;
3835         if (aac_check_firmware(sc) != 0)
3836                 goto finish;
3837         if (!(sc->flags & AAC_FLAGS_SYNC_MODE)) {
3838                 sc->aac_max_msix = max_msix_orig;
3839                 if (msi_enabled_orig) {
3840                         sc->msi_enabled = msi_enabled_orig;
3841                         AAC_ACCESS_DEVREG(sc, AAC_ENABLE_MSIX);
3842                 }
3843                 mtx_unlock(&sc->aac_io_lock);
3844                 aac_init(sc);
3845                 mtx_lock(&sc->aac_io_lock);
3846         }
3847
3848 finish:
3849         sc->aac_state &= ~AAC_STATE_RESET;
3850         AAC_ACCESS_DEVREG(sc, AAC_ENABLE_INTERRUPT);
3851         aacraid_startio(sc);
3852         return (0);
3853 }