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_anywhere(
1667                         sc->aac_dev, SYS_RES_MEMORY, &sc->aac_regs_rid0,
1668                         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                 struct aac_sg_entry sg;
2877
2878                 if ((error = copyin(sgp, &sg, sizeof(sg))) != 0)
2879                         goto out;
2880
2881                 srb_sg_bytecount = sg.SgByteCount;
2882                 srb_sg_address = (u_int64_t)sg.SgAddress;
2883         } else if (fibsize == (sizeof(struct aac_srb) +
2884                 srbcmd->sg_map.SgCount * sizeof(struct aac_sg_entry64))) {
2885 #ifdef __LP64__
2886                 struct aac_sg_entry64 *sgp =
2887                         (struct aac_sg_entry64 *)srbcmd->sg_map.SgEntry;
2888                 struct aac_sg_entry64 sg;
2889
2890                 if ((error = copyin(sgp, &sg, sizeof(sg))) != 0)
2891                         goto out;
2892
2893                 srb_sg_bytecount = sg.SgByteCount;
2894                 srb_sg_address = sg.SgAddress;
2895                 if (srb_sg_address > 0xffffffffull &&
2896                         !(sc->flags & AAC_FLAGS_SG_64BIT))
2897 #endif
2898                 {
2899                         error = EINVAL;
2900                         goto out;
2901                 }
2902         } else {
2903                 error = EINVAL;
2904                 goto out;
2905         }
2906         user_reply = (char *)arg + fibsize;
2907         srbcmd->data_len = srb_sg_bytecount;
2908         if (srbcmd->sg_map.SgCount == 1)
2909                 transfer_data = 1;
2910
2911         if (transfer_data) {
2912                 /*
2913                  * Create DMA tag for the passthr. data buffer and allocate it.
2914                  */
2915                 if (bus_dma_tag_create(sc->aac_parent_dmat,     /* parent */
2916                         1, 0,                   /* algnmnt, boundary */
2917                         (sc->flags & AAC_FLAGS_SG_64BIT) ?
2918                         BUS_SPACE_MAXADDR_32BIT :
2919                         0x7fffffff,             /* lowaddr */
2920                         BUS_SPACE_MAXADDR,      /* highaddr */
2921                         NULL, NULL,             /* filter, filterarg */
2922                         srb_sg_bytecount,       /* size */
2923                         sc->aac_sg_tablesize,   /* nsegments */
2924                         srb_sg_bytecount,       /* maxsegsize */
2925                         0,                      /* flags */
2926                         NULL, NULL,             /* No locking needed */
2927                         &cm->cm_passthr_dmat)) {
2928                         error = ENOMEM;
2929                         goto out;
2930                 }
2931                 if (bus_dmamem_alloc(cm->cm_passthr_dmat, (void **)&cm->cm_data,
2932                         BUS_DMA_NOWAIT, &cm->cm_datamap)) {
2933                         error = ENOMEM;
2934                         goto out;
2935                 }
2936                 /* fill some cm variables */
2937                 cm->cm_datalen = srb_sg_bytecount;
2938                 if (srbcmd->flags & AAC_SRB_FLAGS_DATA_IN)
2939                         cm->cm_flags |= AAC_CMD_DATAIN;
2940                 if (srbcmd->flags & AAC_SRB_FLAGS_DATA_OUT)
2941                         cm->cm_flags |= AAC_CMD_DATAOUT;
2942
2943                 if (srbcmd->flags & AAC_SRB_FLAGS_DATA_OUT) {
2944                         if ((error = copyin((void *)(uintptr_t)srb_sg_address,
2945                                 cm->cm_data, cm->cm_datalen)) != 0)
2946                                 goto out;
2947                         /* sync required for bus_dmamem_alloc() alloc. mem.? */
2948                         bus_dmamap_sync(cm->cm_passthr_dmat, cm->cm_datamap,
2949                                 BUS_DMASYNC_PREWRITE);
2950                 }
2951         }
2952
2953         /* build the FIB */
2954         fib->Header.Size = sizeof(struct aac_fib_header) +
2955                 sizeof(struct aac_srb);
2956         fib->Header.XferState =
2957                 AAC_FIBSTATE_HOSTOWNED   |
2958                 AAC_FIBSTATE_INITIALISED |
2959                 AAC_FIBSTATE_EMPTY       |
2960                 AAC_FIBSTATE_FROMHOST    |
2961                 AAC_FIBSTATE_REXPECTED   |
2962                 AAC_FIBSTATE_NORM        |
2963                 AAC_FIBSTATE_ASYNC;
2964
2965         fib->Header.Command = (sc->flags & AAC_FLAGS_SG_64BIT) ?
2966                 ScsiPortCommandU64 : ScsiPortCommand;
2967         cm->cm_sgtable = (struct aac_sg_table *)&srbcmd->sg_map;
2968
2969         /* send command */
2970         if (transfer_data) {
2971                 bus_dmamap_load(cm->cm_passthr_dmat,
2972                         cm->cm_datamap, cm->cm_data,
2973                         cm->cm_datalen,
2974                         aacraid_map_command_sg, cm, 0);
2975         } else {
2976                 aacraid_map_command_sg(cm, NULL, 0, 0);
2977         }
2978
2979         /* wait for completion */
2980         mtx_lock(&sc->aac_io_lock);
2981         while (!(cm->cm_flags & AAC_CMD_COMPLETED))
2982                 msleep(cm, &sc->aac_io_lock, 0, "aacraid_ctlsrw2", 0);
2983         mtx_unlock(&sc->aac_io_lock);
2984
2985         /* copy data */
2986         if (transfer_data && (srbcmd->flags & AAC_SRB_FLAGS_DATA_IN)) {
2987                 if ((error = copyout(cm->cm_data,
2988                         (void *)(uintptr_t)srb_sg_address,
2989                         cm->cm_datalen)) != 0)
2990                         goto out;
2991                 /* sync required for bus_dmamem_alloc() allocated mem.? */
2992                 bus_dmamap_sync(cm->cm_passthr_dmat, cm->cm_datamap,
2993                                 BUS_DMASYNC_POSTREAD);
2994         }
2995
2996         /* status */
2997         error = copyout(fib->data, user_reply, sizeof(struct aac_srb_response));
2998
2999 out:
3000         if (cm && cm->cm_data) {
3001                 if (transfer_data)
3002                         bus_dmamap_unload(cm->cm_passthr_dmat, cm->cm_datamap);
3003                 bus_dmamem_free(cm->cm_passthr_dmat, cm->cm_data, cm->cm_datamap);
3004                 cm->cm_datamap = orig_map;
3005         }
3006         if (cm && cm->cm_passthr_dmat)
3007                 bus_dma_tag_destroy(cm->cm_passthr_dmat);
3008         if (cm) {
3009                 mtx_lock(&sc->aac_io_lock);
3010                 aacraid_release_command(cm);
3011                 mtx_unlock(&sc->aac_io_lock);
3012         }
3013         return(error);
3014 }
3015
3016 /*
3017  * Request an AIF from the controller (new comm. type1)
3018  */
3019 static void
3020 aac_request_aif(struct aac_softc *sc)
3021 {
3022         struct aac_command *cm;
3023         struct aac_fib *fib;
3024
3025         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3026
3027         if (aacraid_alloc_command(sc, &cm)) {
3028                 sc->aif_pending = 1;
3029                 return;
3030         }
3031         sc->aif_pending = 0;
3032
3033         /* build the FIB */
3034         fib = cm->cm_fib;
3035         fib->Header.Size = sizeof(struct aac_fib);
3036         fib->Header.XferState =
3037         AAC_FIBSTATE_HOSTOWNED   |
3038         AAC_FIBSTATE_INITIALISED |
3039         AAC_FIBSTATE_EMPTY       |
3040         AAC_FIBSTATE_FROMHOST    |
3041         AAC_FIBSTATE_REXPECTED   |
3042         AAC_FIBSTATE_NORM        |
3043         AAC_FIBSTATE_ASYNC;
3044         /* set AIF marker */
3045         fib->Header.Handle = 0x00800000;
3046         fib->Header.Command = AifRequest;
3047         ((struct aac_aif_command *)fib->data)->command = AifReqEvent;
3048
3049         aacraid_map_command_sg(cm, NULL, 0, 0);
3050 }
3051
3052
3053 #if __FreeBSD_version >= 702000
3054 /*
3055  * cdevpriv interface private destructor.
3056  */
3057 static void
3058 aac_cdevpriv_dtor(void *arg)
3059 {
3060         struct aac_softc *sc;
3061
3062         sc = arg;
3063         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3064         mtx_lock(&Giant);
3065         device_unbusy(sc->aac_dev);
3066         mtx_unlock(&Giant);
3067 }
3068 #else
3069 static int
3070 aac_close(struct cdev *dev, int flags, int fmt, struct thread *td)
3071 {
3072         struct aac_softc *sc;
3073
3074         sc = dev->si_drv1;
3075         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3076         return 0;
3077 }
3078 #endif
3079
3080 /*
3081  * Handle an AIF sent to us by the controller; queue it for later reference.
3082  * If the queue fills up, then drop the older entries.
3083  */
3084 static void
3085 aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib)
3086 {
3087         struct aac_aif_command *aif;
3088         struct aac_container *co, *co_next;
3089         struct aac_fib_context *ctx;
3090         struct aac_fib *sync_fib;
3091         struct aac_mntinforesp mir;
3092         int next, current, found;
3093         int count = 0, changed = 0, i = 0;
3094         u_int32_t channel, uid;
3095
3096         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3097
3098         aif = (struct aac_aif_command*)&fib->data[0];
3099         aacraid_print_aif(sc, aif);
3100
3101         /* Is it an event that we should care about? */
3102         switch (aif->command) {
3103         case AifCmdEventNotify:
3104                 switch (aif->data.EN.type) {
3105                 case AifEnAddContainer:
3106                 case AifEnDeleteContainer:
3107                         /*
3108                          * A container was added or deleted, but the message
3109                          * doesn't tell us anything else!  Re-enumerate the
3110                          * containers and sort things out.
3111                          */
3112                         aac_alloc_sync_fib(sc, &sync_fib);
3113                         do {
3114                                 /*
3115                                  * Ask the controller for its containers one at
3116                                  * a time.
3117                                  * XXX What if the controller's list changes
3118                                  * midway through this enumaration?
3119                                  * XXX This should be done async.
3120                                  */
3121                                 if (aac_get_container_info(sc, sync_fib, i,
3122                                         &mir, &uid) != 0)
3123                                         continue;
3124                                 if (i == 0)
3125                                         count = mir.MntRespCount;
3126                                 /*
3127                                  * Check the container against our list.
3128                                  * co->co_found was already set to 0 in a
3129                                  * previous run.
3130                                  */
3131                                 if ((mir.Status == ST_OK) &&
3132                                     (mir.MntTable[0].VolType != CT_NONE)) {
3133                                         found = 0;
3134                                         TAILQ_FOREACH(co,
3135                                                       &sc->aac_container_tqh,
3136                                                       co_link) {
3137                                                 if (co->co_mntobj.ObjectId ==
3138                                                     mir.MntTable[0].ObjectId) {
3139                                                         co->co_found = 1;
3140                                                         found = 1;
3141                                                         break;
3142                                                 }
3143                                         }
3144                                         /*
3145                                          * If the container matched, continue
3146                                          * in the list.
3147                                          */
3148                                         if (found) {
3149                                                 i++;
3150                                                 continue;
3151                                         }
3152
3153                                         /*
3154                                          * This is a new container.  Do all the
3155                                          * appropriate things to set it up.
3156                                          */
3157                                         aac_add_container(sc, &mir, 1, uid);
3158                                         changed = 1;
3159                                 }
3160                                 i++;
3161                         } while ((i < count) && (i < AAC_MAX_CONTAINERS));
3162                         aac_release_sync_fib(sc);
3163
3164                         /*
3165                          * Go through our list of containers and see which ones
3166                          * were not marked 'found'.  Since the controller didn't
3167                          * list them they must have been deleted.  Do the
3168                          * appropriate steps to destroy the device.  Also reset
3169                          * the co->co_found field.
3170                          */
3171                         co = TAILQ_FIRST(&sc->aac_container_tqh);
3172                         while (co != NULL) {
3173                                 if (co->co_found == 0) {
3174                                         co_next = TAILQ_NEXT(co, co_link);
3175                                         TAILQ_REMOVE(&sc->aac_container_tqh, co,
3176                                                      co_link);
3177                                         free(co, M_AACRAIDBUF);
3178                                         changed = 1;
3179                                         co = co_next;
3180                                 } else {
3181                                         co->co_found = 0;
3182                                         co = TAILQ_NEXT(co, co_link);
3183                                 }
3184                         }
3185
3186                         /* Attach the newly created containers */
3187                         if (changed) {
3188                                 if (sc->cam_rescan_cb != NULL)
3189                                         sc->cam_rescan_cb(sc, 0,
3190                                         AAC_CAM_TARGET_WILDCARD);
3191                         }
3192
3193                         break;
3194
3195                 case AifEnEnclosureManagement:
3196                         switch (aif->data.EN.data.EEE.eventType) {
3197                         case AIF_EM_DRIVE_INSERTION:
3198                         case AIF_EM_DRIVE_REMOVAL:
3199                                 channel = aif->data.EN.data.EEE.unitID;
3200                                 if (sc->cam_rescan_cb != NULL)
3201                                         sc->cam_rescan_cb(sc,
3202                                             ((channel>>24) & 0xF) + 1,
3203                                             (channel & 0xFFFF));
3204                                 break;
3205                         }
3206                         break;
3207
3208                 case AifEnAddJBOD:
3209                 case AifEnDeleteJBOD:
3210                 case AifRawDeviceRemove:
3211                         channel = aif->data.EN.data.ECE.container;
3212                         if (sc->cam_rescan_cb != NULL)
3213                                 sc->cam_rescan_cb(sc, ((channel>>24) & 0xF) + 1,
3214                                     AAC_CAM_TARGET_WILDCARD);
3215                         break;
3216
3217                 default:
3218                         break;
3219                 }
3220
3221         default:
3222                 break;
3223         }
3224
3225         /* Copy the AIF data to the AIF queue for ioctl retrieval */
3226         current = sc->aifq_idx;
3227         next = (current + 1) % AAC_AIFQ_LENGTH;
3228         if (next == 0)
3229                 sc->aifq_filled = 1;
3230         bcopy(fib, &sc->aac_aifq[current], sizeof(struct aac_fib));
3231         /* modify AIF contexts */
3232         if (sc->aifq_filled) {
3233                 for (ctx = sc->fibctx; ctx; ctx = ctx->next) {
3234                         if (next == ctx->ctx_idx)
3235                                 ctx->ctx_wrap = 1;
3236                         else if (current == ctx->ctx_idx && ctx->ctx_wrap)
3237                                 ctx->ctx_idx = next;
3238                 }
3239         }
3240         sc->aifq_idx = next;
3241         /* On the off chance that someone is sleeping for an aif... */
3242         if (sc->aac_state & AAC_STATE_AIF_SLEEPER)
3243                 wakeup(sc->aac_aifq);
3244         /* Wakeup any poll()ers */
3245         selwakeuppri(&sc->rcv_select, PRIBIO);
3246
3247         return;
3248 }
3249
3250 /*
3251  * Return the Revision of the driver to userspace and check to see if the
3252  * userspace app is possibly compatible.  This is extremely bogus since
3253  * our driver doesn't follow Adaptec's versioning system.  Cheat by just
3254  * returning what the card reported.
3255  */
3256 static int
3257 aac_rev_check(struct aac_softc *sc, caddr_t udata)
3258 {
3259         struct aac_rev_check rev_check;
3260         struct aac_rev_check_resp rev_check_resp;
3261         int error = 0;
3262
3263         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3264
3265         /*
3266          * Copyin the revision struct from userspace
3267          */
3268         if ((error = copyin(udata, (caddr_t)&rev_check,
3269                         sizeof(struct aac_rev_check))) != 0) {
3270                 return error;
3271         }
3272
3273         fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "Userland revision= %d\n",
3274               rev_check.callingRevision.buildNumber);
3275
3276         /*
3277          * Doctor up the response struct.
3278          */
3279         rev_check_resp.possiblyCompatible = 1;
3280         rev_check_resp.adapterSWRevision.external.comp.major =
3281             AAC_DRIVER_MAJOR_VERSION;
3282         rev_check_resp.adapterSWRevision.external.comp.minor =
3283             AAC_DRIVER_MINOR_VERSION;
3284         rev_check_resp.adapterSWRevision.external.comp.type =
3285             AAC_DRIVER_TYPE;
3286         rev_check_resp.adapterSWRevision.external.comp.dash =
3287             AAC_DRIVER_BUGFIX_LEVEL;
3288         rev_check_resp.adapterSWRevision.buildNumber =
3289             AAC_DRIVER_BUILD;
3290
3291         return(copyout((caddr_t)&rev_check_resp, udata,
3292                         sizeof(struct aac_rev_check_resp)));
3293 }
3294
3295 /*
3296  * Pass the fib context to the caller
3297  */
3298 static int
3299 aac_open_aif(struct aac_softc *sc, caddr_t arg)
3300 {
3301         struct aac_fib_context *fibctx, *ctx;
3302         int error = 0;
3303
3304         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3305
3306         fibctx = malloc(sizeof(struct aac_fib_context), M_AACRAIDBUF, M_NOWAIT|M_ZERO);
3307         if (fibctx == NULL)
3308                 return (ENOMEM);
3309
3310         mtx_lock(&sc->aac_io_lock);
3311         /* all elements are already 0, add to queue */
3312         if (sc->fibctx == NULL)
3313                 sc->fibctx = fibctx;
3314         else {
3315                 for (ctx = sc->fibctx; ctx->next; ctx = ctx->next)
3316                         ;
3317                 ctx->next = fibctx;
3318                 fibctx->prev = ctx;
3319         }
3320
3321         /* evaluate unique value */
3322         fibctx->unique = (*(u_int32_t *)&fibctx & 0xffffffff);
3323         ctx = sc->fibctx;
3324         while (ctx != fibctx) {
3325                 if (ctx->unique == fibctx->unique) {
3326                         fibctx->unique++;
3327                         ctx = sc->fibctx;
3328                 } else {
3329                         ctx = ctx->next;
3330                 }
3331         }
3332
3333         error = copyout(&fibctx->unique, (void *)arg, sizeof(u_int32_t));
3334         mtx_unlock(&sc->aac_io_lock);
3335         if (error)
3336                 aac_close_aif(sc, (caddr_t)ctx);
3337         return error;
3338 }
3339
3340 /*
3341  * Close the caller's fib context
3342  */
3343 static int
3344 aac_close_aif(struct aac_softc *sc, caddr_t arg)
3345 {
3346         struct aac_fib_context *ctx;
3347
3348         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3349
3350         mtx_lock(&sc->aac_io_lock);
3351         for (ctx = sc->fibctx; ctx; ctx = ctx->next) {
3352                 if (ctx->unique == *(uint32_t *)&arg) {
3353                         if (ctx == sc->fibctx)
3354                                 sc->fibctx = NULL;
3355                         else {
3356                                 ctx->prev->next = ctx->next;
3357                                 if (ctx->next)
3358                                         ctx->next->prev = ctx->prev;
3359                         }
3360                         break;
3361                 }
3362         }
3363         if (ctx)
3364                 free(ctx, M_AACRAIDBUF);
3365
3366         mtx_unlock(&sc->aac_io_lock);
3367         return 0;
3368 }
3369
3370 /*
3371  * Pass the caller the next AIF in their queue
3372  */
3373 static int
3374 aac_getnext_aif(struct aac_softc *sc, caddr_t arg)
3375 {
3376         struct get_adapter_fib_ioctl agf;
3377         struct aac_fib_context *ctx;
3378         int error;
3379
3380         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3381
3382         mtx_lock(&sc->aac_io_lock);
3383         if ((error = copyin(arg, &agf, sizeof(agf))) == 0) {
3384                 for (ctx = sc->fibctx; ctx; ctx = ctx->next) {
3385                         if (agf.AdapterFibContext == ctx->unique)
3386                                 break;
3387                 }
3388                 if (!ctx) {
3389                         mtx_unlock(&sc->aac_io_lock);
3390                         return (EFAULT);
3391                 }
3392
3393                 error = aac_return_aif(sc, ctx, agf.AifFib);
3394                 if (error == EAGAIN && agf.Wait) {
3395                         fwprintf(sc, HBA_FLAGS_DBG_AIF_B, "aac_getnext_aif(): waiting for AIF");
3396                         sc->aac_state |= AAC_STATE_AIF_SLEEPER;
3397                         while (error == EAGAIN) {
3398                                 mtx_unlock(&sc->aac_io_lock);
3399                                 error = tsleep(sc->aac_aifq, PRIBIO |
3400                                                PCATCH, "aacaif", 0);
3401                                 mtx_lock(&sc->aac_io_lock);
3402                                 if (error == 0)
3403                                         error = aac_return_aif(sc, ctx, agf.AifFib);
3404                         }
3405                         sc->aac_state &= ~AAC_STATE_AIF_SLEEPER;
3406                 }
3407         }
3408         mtx_unlock(&sc->aac_io_lock);
3409         return(error);
3410 }
3411
3412 /*
3413  * Hand the next AIF off the top of the queue out to userspace.
3414  */
3415 static int
3416 aac_return_aif(struct aac_softc *sc, struct aac_fib_context *ctx, caddr_t uptr)
3417 {
3418         int current, error;
3419
3420         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3421
3422         current = ctx->ctx_idx;
3423         if (current == sc->aifq_idx && !ctx->ctx_wrap) {
3424                 /* empty */
3425                 return (EAGAIN);
3426         }
3427         error =
3428                 copyout(&sc->aac_aifq[current], (void *)uptr, sizeof(struct aac_fib));
3429         if (error)
3430                 device_printf(sc->aac_dev,
3431                     "aac_return_aif: copyout returned %d\n", error);
3432         else {
3433                 ctx->ctx_wrap = 0;
3434                 ctx->ctx_idx = (current + 1) % AAC_AIFQ_LENGTH;
3435         }
3436         return(error);
3437 }
3438
3439 static int
3440 aac_get_pci_info(struct aac_softc *sc, caddr_t uptr)
3441 {
3442         struct aac_pci_info {
3443                 u_int32_t bus;
3444                 u_int32_t slot;
3445         } pciinf;
3446         int error;
3447
3448         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3449
3450         pciinf.bus = pci_get_bus(sc->aac_dev);
3451         pciinf.slot = pci_get_slot(sc->aac_dev);
3452
3453         error = copyout((caddr_t)&pciinf, uptr,
3454                         sizeof(struct aac_pci_info));
3455
3456         return (error);
3457 }
3458
3459 static int
3460 aac_supported_features(struct aac_softc *sc, caddr_t uptr)
3461 {
3462         struct aac_features f;
3463         int error;
3464
3465         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3466
3467         if ((error = copyin(uptr, &f, sizeof (f))) != 0)
3468                 return (error);
3469
3470         /*
3471          * When the management driver receives FSACTL_GET_FEATURES ioctl with
3472          * ALL zero in the featuresState, the driver will return the current
3473          * state of all the supported features, the data field will not be
3474          * valid.
3475          * When the management driver receives FSACTL_GET_FEATURES ioctl with
3476          * a specific bit set in the featuresState, the driver will return the
3477          * current state of this specific feature and whatever data that are
3478          * associated with the feature in the data field or perform whatever
3479          * action needed indicates in the data field.
3480          */
3481          if (f.feat.fValue == 0) {
3482                 f.feat.fBits.largeLBA =
3483                     (sc->flags & AAC_FLAGS_LBA_64BIT) ? 1 : 0;
3484                 f.feat.fBits.JBODSupport = 1;
3485                 /* TODO: In the future, add other features state here as well */
3486         } else {
3487                 if (f.feat.fBits.largeLBA)
3488                         f.feat.fBits.largeLBA =
3489                             (sc->flags & AAC_FLAGS_LBA_64BIT) ? 1 : 0;
3490                 /* TODO: Add other features state and data in the future */
3491         }
3492
3493         error = copyout(&f, uptr, sizeof (f));
3494         return (error);
3495 }
3496
3497 /*
3498  * Give the userland some information about the container.  The AAC arch
3499  * expects the driver to be a SCSI passthrough type driver, so it expects
3500  * the containers to have b:t:l numbers.  Fake it.
3501  */
3502 static int
3503 aac_query_disk(struct aac_softc *sc, caddr_t uptr)
3504 {
3505         struct aac_query_disk query_disk;
3506         struct aac_container *co;
3507         int error, id;
3508
3509         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3510
3511         mtx_lock(&sc->aac_io_lock);
3512         error = copyin(uptr, (caddr_t)&query_disk,
3513                        sizeof(struct aac_query_disk));
3514         if (error) {
3515                 mtx_unlock(&sc->aac_io_lock);
3516                 return (error);
3517         }
3518
3519         id = query_disk.ContainerNumber;
3520         if (id == -1) {
3521                 mtx_unlock(&sc->aac_io_lock);
3522                 return (EINVAL);
3523         }
3524
3525         TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) {
3526                 if (co->co_mntobj.ObjectId == id)
3527                         break;
3528                 }
3529
3530         if (co == NULL) {
3531                         query_disk.Valid = 0;
3532                         query_disk.Locked = 0;
3533                         query_disk.Deleted = 1;         /* XXX is this right? */
3534         } else {
3535                 query_disk.Valid = 1;
3536                 query_disk.Locked = 1;
3537                 query_disk.Deleted = 0;
3538                 query_disk.Bus = device_get_unit(sc->aac_dev);
3539                 query_disk.Target = 0;
3540                 query_disk.Lun = 0;
3541                 query_disk.UnMapped = 0;
3542         }
3543
3544         error = copyout((caddr_t)&query_disk, uptr,
3545                         sizeof(struct aac_query_disk));
3546
3547         mtx_unlock(&sc->aac_io_lock);
3548         return (error);
3549 }
3550
3551 static void
3552 aac_container_bus(struct aac_softc *sc)
3553 {
3554         struct aac_sim *sim;
3555         device_t child;
3556
3557         sim =(struct aac_sim *)malloc(sizeof(struct aac_sim),
3558                 M_AACRAIDBUF, M_NOWAIT | M_ZERO);
3559         if (sim == NULL) {
3560                 device_printf(sc->aac_dev,
3561                 "No memory to add container bus\n");
3562                 panic("Out of memory?!");
3563         }
3564         child = device_add_child(sc->aac_dev, "aacraidp", -1);
3565         if (child == NULL) {
3566                 device_printf(sc->aac_dev,
3567                 "device_add_child failed for container bus\n");
3568                 free(sim, M_AACRAIDBUF);
3569                 panic("Out of memory?!");
3570         }
3571
3572         sim->TargetsPerBus = AAC_MAX_CONTAINERS;
3573         sim->BusNumber = 0;
3574         sim->BusType = CONTAINER_BUS;
3575         sim->InitiatorBusId = -1;
3576         sim->aac_sc = sc;
3577         sim->sim_dev = child;
3578         sim->aac_cam = NULL;
3579
3580         device_set_ivars(child, sim);
3581         device_set_desc(child, "Container Bus");
3582         TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, sim, sim_link);
3583         /*
3584         device_set_desc(child, aac_describe_code(aac_container_types,
3585                         mir->MntTable[0].VolType));
3586         */
3587         bus_generic_attach(sc->aac_dev);
3588 }
3589
3590 static void
3591 aac_get_bus_info(struct aac_softc *sc)
3592 {
3593         struct aac_fib *fib;
3594         struct aac_ctcfg *c_cmd;
3595         struct aac_ctcfg_resp *c_resp;
3596         struct aac_vmioctl *vmi;
3597         struct aac_vmi_businf_resp *vmi_resp;
3598         struct aac_getbusinf businfo;
3599         struct aac_sim *caminf;
3600         device_t child;
3601         int i, error;
3602
3603         mtx_lock(&sc->aac_io_lock);
3604         aac_alloc_sync_fib(sc, &fib);
3605         c_cmd = (struct aac_ctcfg *)&fib->data[0];
3606         bzero(c_cmd, sizeof(struct aac_ctcfg));
3607
3608         c_cmd->Command = VM_ContainerConfig;
3609         c_cmd->cmd = CT_GET_SCSI_METHOD;
3610         c_cmd->param = 0;
3611
3612         error = aac_sync_fib(sc, ContainerCommand, 0, fib,
3613             sizeof(struct aac_ctcfg));
3614         if (error) {
3615                 device_printf(sc->aac_dev, "Error %d sending "
3616                     "VM_ContainerConfig command\n", error);
3617                 aac_release_sync_fib(sc);
3618                 mtx_unlock(&sc->aac_io_lock);
3619                 return;
3620         }
3621
3622         c_resp = (struct aac_ctcfg_resp *)&fib->data[0];
3623         if (c_resp->Status != ST_OK) {
3624                 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n",
3625                     c_resp->Status);
3626                 aac_release_sync_fib(sc);
3627                 mtx_unlock(&sc->aac_io_lock);
3628                 return;
3629         }
3630
3631         sc->scsi_method_id = c_resp->param;
3632
3633         vmi = (struct aac_vmioctl *)&fib->data[0];
3634         bzero(vmi, sizeof(struct aac_vmioctl));
3635
3636         vmi->Command = VM_Ioctl;
3637         vmi->ObjType = FT_DRIVE;
3638         vmi->MethId = sc->scsi_method_id;
3639         vmi->ObjId = 0;
3640         vmi->IoctlCmd = GetBusInfo;
3641
3642         error = aac_sync_fib(sc, ContainerCommand, 0, fib,
3643             sizeof(struct aac_vmi_businf_resp));
3644         if (error) {
3645                 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n",
3646                     error);
3647                 aac_release_sync_fib(sc);
3648                 mtx_unlock(&sc->aac_io_lock);
3649                 return;
3650         }
3651
3652         vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0];
3653         if (vmi_resp->Status != ST_OK) {
3654                 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n",
3655                     vmi_resp->Status);
3656                 aac_release_sync_fib(sc);
3657                 mtx_unlock(&sc->aac_io_lock);
3658                 return;
3659         }
3660
3661         bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf));
3662         aac_release_sync_fib(sc);
3663         mtx_unlock(&sc->aac_io_lock);
3664
3665         for (i = 0; i < businfo.BusCount; i++) {
3666                 if (businfo.BusValid[i] != AAC_BUS_VALID)
3667                         continue;
3668
3669                 caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim),
3670                     M_AACRAIDBUF, M_NOWAIT | M_ZERO);
3671                 if (caminf == NULL) {
3672                         device_printf(sc->aac_dev,
3673                             "No memory to add passthrough bus %d\n", i);
3674                         break;
3675                 }
3676
3677                 child = device_add_child(sc->aac_dev, "aacraidp", -1);
3678                 if (child == NULL) {
3679                         device_printf(sc->aac_dev,
3680                             "device_add_child failed for passthrough bus %d\n",
3681                             i);
3682                         free(caminf, M_AACRAIDBUF);
3683                         break;
3684                 }
3685
3686                 caminf->TargetsPerBus = businfo.TargetsPerBus;
3687                 caminf->BusNumber = i+1;
3688                 caminf->BusType = PASSTHROUGH_BUS;
3689                 caminf->InitiatorBusId = businfo.InitiatorBusId[i];
3690                 caminf->aac_sc = sc;
3691                 caminf->sim_dev = child;
3692                 caminf->aac_cam = NULL;
3693
3694                 device_set_ivars(child, caminf);
3695                 device_set_desc(child, "SCSI Passthrough Bus");
3696                 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link);
3697         }
3698 }
3699
3700 /*
3701  * Check to see if the kernel is up and running. If we are in a
3702  * BlinkLED state, return the BlinkLED code.
3703  */
3704 static u_int32_t
3705 aac_check_adapter_health(struct aac_softc *sc, u_int8_t *bled)
3706 {
3707         u_int32_t ret;
3708
3709         ret = AAC_GET_FWSTATUS(sc);
3710
3711         if (ret & AAC_UP_AND_RUNNING)
3712                 ret = 0;
3713         else if (ret & AAC_KERNEL_PANIC && bled)
3714                 *bled = (ret >> 16) & 0xff;
3715
3716         return (ret);
3717 }
3718
3719 /*
3720  * Once do an IOP reset, basically have to re-initialize the card as
3721  * if coming up from a cold boot, and the driver is responsible for
3722  * any IO that was outstanding to the adapter at the time of the IOP
3723  * RESET. And prepare the driver for IOP RESET by making the init code
3724  * modular with the ability to call it from multiple places.
3725  */
3726 static int
3727 aac_reset_adapter(struct aac_softc *sc)
3728 {
3729         struct aac_command *cm;
3730         struct aac_fib *fib;
3731         struct aac_pause_command *pc;
3732         u_int32_t status, reset_mask, waitCount, max_msix_orig;
3733         int msi_enabled_orig;
3734
3735         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
3736         mtx_assert(&sc->aac_io_lock, MA_OWNED);
3737
3738         if (sc->aac_state & AAC_STATE_RESET) {
3739                 device_printf(sc->aac_dev, "aac_reset_adapter() already in progress\n");
3740                 return (EINVAL);
3741         }
3742         sc->aac_state |= AAC_STATE_RESET;
3743
3744         /* disable interrupt */
3745         AAC_ACCESS_DEVREG(sc, AAC_DISABLE_INTERRUPT);
3746
3747         /*
3748          * Abort all pending commands:
3749          * a) on the controller
3750          */
3751         while ((cm = aac_dequeue_busy(sc)) != NULL) {
3752                 cm->cm_flags |= AAC_CMD_RESET;
3753
3754                 /* is there a completion handler? */
3755                 if (cm->cm_complete != NULL) {
3756                         cm->cm_complete(cm);
3757                 } else {
3758                         /* assume that someone is sleeping on this
3759                          * command
3760                          */
3761                         wakeup(cm);
3762                 }
3763         }
3764
3765         /* b) in the waiting queues */
3766         while ((cm = aac_dequeue_ready(sc)) != NULL) {
3767                 cm->cm_flags |= AAC_CMD_RESET;
3768
3769                 /* is there a completion handler? */
3770                 if (cm->cm_complete != NULL) {
3771                         cm->cm_complete(cm);
3772                 } else {
3773                         /* assume that someone is sleeping on this
3774                          * command
3775                          */
3776                         wakeup(cm);
3777                 }
3778         }
3779
3780         /* flush drives */
3781         if (aac_check_adapter_health(sc, NULL) == 0) {
3782                 mtx_unlock(&sc->aac_io_lock);
3783                 (void) aacraid_shutdown(sc->aac_dev);
3784                 mtx_lock(&sc->aac_io_lock);
3785         }
3786
3787         /* execute IOP reset */
3788         if (sc->aac_support_opt2 & AAC_SUPPORTED_MU_RESET) {
3789                 AAC_MEM0_SETREG4(sc, AAC_IRCSR, AAC_IRCSR_CORES_RST);
3790
3791                 /* We need to wait for 5 seconds before accessing the MU again
3792                  * 10000 * 100us = 1000,000us = 1000ms = 1s
3793                  */
3794                 waitCount = 5 * 10000;
3795                 while (waitCount) {
3796                         DELAY(100);                     /* delay 100 microseconds */
3797                         waitCount--;
3798                 }
3799         } else if ((aacraid_sync_command(sc,
3800                 AAC_IOP_RESET_ALWAYS, 0, 0, 0, 0, &status, &reset_mask)) != 0) {
3801                 /* call IOP_RESET for older firmware */
3802                 if ((aacraid_sync_command(sc,
3803                         AAC_IOP_RESET, 0, 0, 0, 0, &status, NULL)) != 0) {
3804
3805                         if (status == AAC_SRB_STS_INVALID_REQUEST)
3806                                 device_printf(sc->aac_dev, "IOP_RESET not supported\n");
3807                         else
3808                                 /* probably timeout */
3809                                 device_printf(sc->aac_dev, "IOP_RESET failed\n");
3810
3811                         /* unwind aac_shutdown() */
3812                         aac_alloc_sync_fib(sc, &fib);
3813                         pc = (struct aac_pause_command *)&fib->data[0];
3814                         pc->Command = VM_ContainerConfig;
3815                         pc->Type = CT_PAUSE_IO;
3816                         pc->Timeout = 1;
3817                         pc->Min = 1;
3818                         pc->NoRescan = 1;
3819
3820                         (void) aac_sync_fib(sc, ContainerCommand, 0, fib,
3821                                 sizeof (struct aac_pause_command));
3822                         aac_release_sync_fib(sc);
3823
3824                         goto finish;
3825                 }
3826         } else if (sc->aac_support_opt2 & AAC_SUPPORTED_DOORBELL_RESET) {
3827                 AAC_MEM0_SETREG4(sc, AAC_SRC_IDBR, reset_mask);
3828                 /*
3829                  * We need to wait for 5 seconds before accessing the doorbell
3830                  * again, 10000 * 100us = 1000,000us = 1000ms = 1s
3831                  */
3832                 waitCount = 5 * 10000;
3833                 while (waitCount) {
3834                         DELAY(100);             /* delay 100 microseconds */
3835                         waitCount--;
3836                 }
3837         }
3838
3839         /*
3840          * Initialize the adapter.
3841          */
3842         max_msix_orig = sc->aac_max_msix;
3843         msi_enabled_orig = sc->msi_enabled;
3844         sc->msi_enabled = FALSE;
3845         if (aac_check_firmware(sc) != 0)
3846                 goto finish;
3847         if (!(sc->flags & AAC_FLAGS_SYNC_MODE)) {
3848                 sc->aac_max_msix = max_msix_orig;
3849                 if (msi_enabled_orig) {
3850                         sc->msi_enabled = msi_enabled_orig;
3851                         AAC_ACCESS_DEVREG(sc, AAC_ENABLE_MSIX);
3852                 }
3853                 mtx_unlock(&sc->aac_io_lock);
3854                 aac_init(sc);
3855                 mtx_lock(&sc->aac_io_lock);
3856         }
3857
3858 finish:
3859         sc->aac_state &= ~AAC_STATE_RESET;
3860         AAC_ACCESS_DEVREG(sc, AAC_ENABLE_INTERRUPT);
3861         aacraid_startio(sc);
3862         return (0);
3863 }