git.oblomov.eu Git - linux-2.6/blob - drivers/scsi/dpt_i2o.c

   1 /***************************************************************************
   2                           dpti.c  -  description
   3                              -------------------
   4     begin                : Thu Sep 7 2000
   5     copyright            : (C) 2000 by Adaptec
   6
   7                            July 30, 2001 First version being submitted
   8                            for inclusion in the kernel.  V2.4
   9
  10     See Documentation/scsi/dpti.txt for history, notes, license info
  11     and credits
  12  ***************************************************************************/
  13
  14 /***************************************************************************
  15  *                                                                         *
  16  *   This program is free software; you can redistribute it and/or modify  *
  17  *   it under the terms of the GNU General Public License as published by  *
  18  *   the Free Software Foundation; either version 2 of the License, or     *
  19  *   (at your option) any later version.                                   *
  20  *                                                                         *
  21  ***************************************************************************/
  22 /***************************************************************************
  23  * Sat Dec 20 2003 Go Taniguchi <go@turbolinux.co.jp>
  24  - Support 2.6 kernel and DMA-mapping
  25  - ioctl fix for raid tools
  26  - use schedule_timeout in long long loop
  27  **************************************************************************/
  28
  29 /*#define DEBUG 1 */
  30 /*#define UARTDELAY 1 */
  31
  32 /* On the real kernel ADDR32 should always be zero for 2.4. GFP_HIGH allocates
  33    high pages. Keep the macro around because of the broken unmerged ia64 tree */
  34
  35 #define ADDR32 (0)
  36
  37 #include <linux/module.h>
  38
  39 MODULE_AUTHOR("Deanna Bonds, with _lots_ of help from Mark Salyzyn");
  40 MODULE_DESCRIPTION("Adaptec I2O RAID Driver");
  41
  42 ////////////////////////////////////////////////////////////////
  43
  44 #include <linux/ioctl.h>        /* For SCSI-Passthrough */
  45 #include <asm/uaccess.h>
  46
  47 #include <linux/stat.h>
  48 #include <linux/slab.h>         /* for kmalloc() */
  49 #include <linux/pci.h>          /* for PCI support */
  50 #include <linux/proc_fs.h>
  51 #include <linux/blkdev.h>
  52 #include <linux/delay.h>        /* for udelay */
  53 #include <linux/interrupt.h>
  54 #include <linux/kernel.h>       /* for printk */
  55 #include <linux/sched.h>
  56 #include <linux/reboot.h>
  57 #include <linux/spinlock.h>
  58 #include <linux/smp_lock.h>
  59 #include <linux/dma-mapping.h>
  60
  61 #include <linux/timer.h>
  62 #include <linux/string.h>
  63 #include <linux/ioport.h>
  64 #include <linux/mutex.h>
  65
  66 #include <asm/processor.h>      /* for boot_cpu_data */
  67 #include <asm/pgtable.h>
  68 #include <asm/io.h>             /* for virt_to_bus, etc. */
  69
  70 #include <scsi/scsi.h>
  71 #include <scsi/scsi_cmnd.h>
  72 #include <scsi/scsi_device.h>
  73 #include <scsi/scsi_host.h>
  74 #include <scsi/scsi_tcq.h>
  75
  76 #include "dpt/dptsig.h"
  77 #include "dpti.h"
  78
  79 /*============================================================================
  80  * Create a binary signature - this is read by dptsig
  81  * Needed for our management apps
  82  *============================================================================
  83  */
  84 static dpt_sig_S DPTI_sig = {
  85         {'d', 'P', 't', 'S', 'i', 'G'}, SIG_VERSION,
  86 #ifdef __i386__
  87         PROC_INTEL, PROC_386 | PROC_486 | PROC_PENTIUM | PROC_SEXIUM,
  88 #elif defined(__ia64__)
  89         PROC_INTEL, PROC_IA64,
  90 #elif defined(__sparc__)
  91         PROC_ULTRASPARC, PROC_ULTRASPARC,
  92 #elif defined(__alpha__)
  93         PROC_ALPHA, PROC_ALPHA,
  94 #else
  95         (-1),(-1),
  96 #endif
  97          FT_HBADRVR, 0, OEM_DPT, OS_LINUX, CAP_OVERLAP, DEV_ALL,
  98         ADF_ALL_SC5, 0, 0, DPT_VERSION, DPT_REVISION, DPT_SUBREVISION,
  99         DPT_MONTH, DPT_DAY, DPT_YEAR, "Adaptec Linux I2O RAID Driver"
 100 };
 101
 102
 103
 104
 105 /*============================================================================
 106  * Globals
 107  *============================================================================
 108  */
 109
 110 static DEFINE_MUTEX(adpt_configuration_lock);
 111
 112 static struct i2o_sys_tbl *sys_tbl = NULL;
 113 static int sys_tbl_ind = 0;
 114 static int sys_tbl_len = 0;
 115
 116 static adpt_hba* hba_chain = NULL;
 117 static int hba_count = 0;
 118
 119 static const struct file_operations adpt_fops = {
 120         .ioctl          = adpt_ioctl,
 121         .open           = adpt_open,
 122         .release        = adpt_close
 123 };
 124
 125 #ifdef REBOOT_NOTIFIER
 126 static struct notifier_block adpt_reboot_notifier =
 127 {
 128          adpt_reboot_event,
 129          NULL,
 130          0
 131 };
 132 #endif
 133
 134 /* Structures and definitions for synchronous message posting.
 135  * See adpt_i2o_post_wait() for description
 136  * */
 137 struct adpt_i2o_post_wait_data
 138 {
 139         int status;
 140         u32 id;
 141         adpt_wait_queue_head_t *wq;
 142         struct adpt_i2o_post_wait_data *next;
 143 };
 144
 145 static struct adpt_i2o_post_wait_data *adpt_post_wait_queue = NULL;
 146 static u32 adpt_post_wait_id = 0;
 147 static DEFINE_SPINLOCK(adpt_post_wait_lock);
 148
 149
 150 /*============================================================================
 151  *                              Functions
 152  *============================================================================
 153  */
 154
 155 static u8 adpt_read_blink_led(adpt_hba* host)
 156 {
 157         if(host->FwDebugBLEDflag_P != 0) {
 158                 if( readb(host->FwDebugBLEDflag_P) == 0xbc ){
 159                         return readb(host->FwDebugBLEDvalue_P);
 160                 }
 161         }
 162         return 0;
 163 }
 164
 165 /*============================================================================
 166  * Scsi host template interface functions
 167  *============================================================================
 168  */
 169
 170 static struct pci_device_id dptids[] = {
 171         { PCI_DPT_VENDOR_ID, PCI_DPT_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
 172         { PCI_DPT_VENDOR_ID, PCI_DPT_RAPTOR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
 173         { 0, }
 174 };
 175 MODULE_DEVICE_TABLE(pci,dptids);
 176
 177 static int adpt_detect(struct scsi_host_template* sht)
 178 {
 179         struct pci_dev *pDev = NULL;
 180         adpt_hba* pHba;
 181
 182         adpt_init();
 183
 184         PINFO("Detecting Adaptec I2O RAID controllers...\n");
 185
 186         /* search for all Adatpec I2O RAID cards */
 187         while ((pDev = pci_get_device( PCI_DPT_VENDOR_ID, PCI_ANY_ID, pDev))) {
 188                 if(pDev->device == PCI_DPT_DEVICE_ID ||
 189                    pDev->device == PCI_DPT_RAPTOR_DEVICE_ID){
 190                         if(adpt_install_hba(sht, pDev) ){
 191                                 PERROR("Could not Init an I2O RAID device\n");
 192                                 PERROR("Will not try to detect others.\n");
 193                                 return hba_count-1;
 194                         }
 195                         pci_dev_get(pDev);
 196                 }
 197         }
 198
 199         /* In INIT state, Activate IOPs */
 200         for (pHba = hba_chain; pHba; pHba = pHba->next) {
 201                 // Activate does get status , init outbound, and get hrt
 202                 if (adpt_i2o_activate_hba(pHba) < 0) {
 203                         adpt_i2o_delete_hba(pHba);
 204                 }
 205         }
 206
 207
 208         /* Active IOPs in HOLD state */
 209
 210 rebuild_sys_tab:
 211         if (hba_chain == NULL)
 212                 return 0;
 213
 214         /*
 215          * If build_sys_table fails, we kill everything and bail
 216          * as we can't init the IOPs w/o a system table
 217          */
 218         if (adpt_i2o_build_sys_table() < 0) {
 219                 adpt_i2o_sys_shutdown();
 220                 return 0;
 221         }
 222
 223         PDEBUG("HBA's in HOLD state\n");
 224
 225         /* If IOP don't get online, we need to rebuild the System table */
 226         for (pHba = hba_chain; pHba; pHba = pHba->next) {
 227                 if (adpt_i2o_online_hba(pHba) < 0) {
 228                         adpt_i2o_delete_hba(pHba);
 229                         goto rebuild_sys_tab;
 230                 }
 231         }
 232
 233         /* Active IOPs now in OPERATIONAL state */
 234         PDEBUG("HBA's in OPERATIONAL state\n");
 235
 236         printk("dpti: If you have a lot of devices this could take a few minutes.\n");
 237         for (pHba = hba_chain; pHba; pHba = pHba->next) {
 238                 printk(KERN_INFO"%s: Reading the hardware resource table.\n", pHba->name);
 239                 if (adpt_i2o_lct_get(pHba) < 0){
 240                         adpt_i2o_delete_hba(pHba);
 241                         continue;
 242                 }
 243
 244                 if (adpt_i2o_parse_lct(pHba) < 0){
 245                         adpt_i2o_delete_hba(pHba);
 246                         continue;
 247                 }
 248                 adpt_inquiry(pHba);
 249         }
 250
 251         for (pHba = hba_chain; pHba; pHba = pHba->next) {
 252                 if( adpt_scsi_register(pHba,sht) < 0){
 253                         adpt_i2o_delete_hba(pHba);
 254                         continue;
 255                 }
 256                 pHba->initialized = TRUE;
 257                 pHba->state &= ~DPTI_STATE_RESET;
 258         }
 259
 260         // Register our control device node
 261         // nodes will need to be created in /dev to access this
 262         // the nodes can not be created from within the driver
 263         if (hba_count && register_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER, &adpt_fops)) {
 264                 adpt_i2o_sys_shutdown();
 265                 return 0;
 266         }
 267         return hba_count;
 268 }
 269
 270
 271 /*
 272  * scsi_unregister will be called AFTER we return.
 273  */
 274 static int adpt_release(struct Scsi_Host *host)
 275 {
 276         adpt_hba* pHba = (adpt_hba*) host->hostdata[0];
 277 //      adpt_i2o_quiesce_hba(pHba);
 278         adpt_i2o_delete_hba(pHba);
 279         scsi_unregister(host);
 280         return 0;
 281 }
 282
 283
 284 static void adpt_inquiry(adpt_hba* pHba)
 285 {
 286         u32 msg[14];
 287         u32 *mptr;
 288         u32 *lenptr;
 289         int direction;
 290         int scsidir;
 291         u32 len;
 292         u32 reqlen;
 293         u8* buf;
 294         u8  scb[16];
 295         s32 rcode;
 296
 297         memset(msg, 0, sizeof(msg));
 298         buf = kmalloc(80,GFP_KERNEL|ADDR32);
 299         if(!buf){
 300                 printk(KERN_ERR"%s: Could not allocate buffer\n",pHba->name);
 301                 return;
 302         }
 303         memset((void*)buf, 0, 36);
 304
 305         len = 36;
 306         direction = 0x00000000;
 307         scsidir  =0x40000000;   // DATA IN  (iop<--dev)
 308
 309         reqlen = 14;            // SINGLE SGE
 310         /* Stick the headers on */
 311         msg[0] = reqlen<<16 | SGL_OFFSET_12;
 312         msg[1] = (0xff<<24|HOST_TID<<12|ADAPTER_TID);
 313         msg[2] = 0;
 314         msg[3]  = 0;
 315         // Adaptec/DPT Private stuff
 316         msg[4] = I2O_CMD_SCSI_EXEC|DPT_ORGANIZATION_ID<<16;
 317         msg[5] = ADAPTER_TID | 1<<16 /* Interpret*/;
 318         /* Direction, disconnect ok | sense data | simple queue , CDBLen */
 319         // I2O_SCB_FLAG_ENABLE_DISCONNECT |
 320         // I2O_SCB_FLAG_SIMPLE_QUEUE_TAG |
 321         // I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE;
 322         msg[6] = scsidir|0x20a00000| 6 /* cmd len*/;
 323
 324         mptr=msg+7;
 325
 326         memset(scb, 0, sizeof(scb));
 327         // Write SCSI command into the message - always 16 byte block
 328         scb[0] = INQUIRY;
 329         scb[1] = 0;
 330         scb[2] = 0;
 331         scb[3] = 0;
 332         scb[4] = 36;
 333         scb[5] = 0;
 334         // Don't care about the rest of scb
 335
 336         memcpy(mptr, scb, sizeof(scb));
 337         mptr+=4;
 338         lenptr=mptr++;          /* Remember me - fill in when we know */
 339
 340         /* Now fill in the SGList and command */
 341         *lenptr = len;
 342         *mptr++ = 0xD0000000|direction|len;
 343         *mptr++ = virt_to_bus(buf);
 344
 345         // Send it on it's way
 346         rcode = adpt_i2o_post_wait(pHba, msg, reqlen<<2, 120);
 347         if (rcode != 0) {
 348                 sprintf(pHba->detail, "Adaptec I2O RAID");
 349                 printk(KERN_INFO "%s: Inquiry Error (%d)\n",pHba->name,rcode);
 350                 if (rcode != -ETIME && rcode != -EINTR)
 351                         kfree(buf);
 352         } else {
 353                 memset(pHba->detail, 0, sizeof(pHba->detail));
 354                 memcpy(&(pHba->detail), "Vendor: Adaptec ", 16);
 355                 memcpy(&(pHba->detail[16]), " Model: ", 8);
 356                 memcpy(&(pHba->detail[24]), (u8*) &buf[16], 16);
 357                 memcpy(&(pHba->detail[40]), " FW: ", 4);
 358                 memcpy(&(pHba->detail[44]), (u8*) &buf[32], 4);
 359                 pHba->detail[48] = '\0';        /* precautionary */
 360                 kfree(buf);
 361         }
 362         adpt_i2o_status_get(pHba);
 363         return ;
 364 }
 365
 366
 367 static int adpt_slave_configure(struct scsi_device * device)
 368 {
 369         struct Scsi_Host *host = device->host;
 370         adpt_hba* pHba;
 371
 372         pHba = (adpt_hba *) host->hostdata[0];
 373
 374         if (host->can_queue && device->tagged_supported) {
 375                 scsi_adjust_queue_depth(device, MSG_SIMPLE_TAG,
 376                                 host->can_queue - 1);
 377         } else {
 378                 scsi_adjust_queue_depth(device, 0, 1);
 379         }
 380         return 0;
 381 }
 382
 383 static int adpt_queue(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *))
 384 {
 385         adpt_hba* pHba = NULL;
 386         struct adpt_device* pDev = NULL;        /* dpt per device information */
 387
 388         cmd->scsi_done = done;
 389         /*
 390          * SCSI REQUEST_SENSE commands will be executed automatically by the
 391          * Host Adapter for any errors, so they should not be executed
 392          * explicitly unless the Sense Data is zero indicating that no error
 393          * occurred.
 394          */
 395
 396         if ((cmd->cmnd[0] == REQUEST_SENSE) && (cmd->sense_buffer[0] != 0)) {
 397                 cmd->result = (DID_OK << 16);
 398                 cmd->scsi_done(cmd);
 399                 return 0;
 400         }
 401
 402         pHba = (adpt_hba*)cmd->device->host->hostdata[0];
 403         if (!pHba) {
 404                 return FAILED;
 405         }
 406
 407         rmb();
 408         /*
 409          * TODO: I need to block here if I am processing ioctl cmds
 410          * but if the outstanding cmds all finish before the ioctl,
 411          * the scsi-core will not know to start sending cmds to me again.
 412          * I need to a way to restart the scsi-cores queues or should I block
 413          * calling scsi_done on the outstanding cmds instead
 414          * for now we don't set the IOCTL state
 415          */
 416         if(((pHba->state) & DPTI_STATE_IOCTL) || ((pHba->state) & DPTI_STATE_RESET)) {
 417                 pHba->host->last_reset = jiffies;
 418                 pHba->host->resetting = 1;
 419                 return 1;
 420         }
 421
 422         // TODO if the cmd->device if offline then I may need to issue a bus rescan
 423         // followed by a get_lct to see if the device is there anymore
 424         if((pDev = (struct adpt_device*) (cmd->device->hostdata)) == NULL) {
 425                 /*
 426                  * First command request for this device.  Set up a pointer
 427                  * to the device structure.  This should be a TEST_UNIT_READY
 428                  * command from scan_scsis_single.
 429                  */
 430                 if ((pDev = adpt_find_device(pHba, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun)) == NULL) {
 431                         // TODO: if any luns are at this bus, scsi id then fake a TEST_UNIT_READY and INQUIRY response
 432                         // with type 7F (for all luns less than the max for this bus,id) so the lun scan will continue.
 433                         cmd->result = (DID_NO_CONNECT << 16);
 434                         cmd->scsi_done(cmd);
 435                         return 0;
 436                 }
 437                 cmd->device->hostdata = pDev;
 438         }
 439         pDev->pScsi_dev = cmd->device;
 440
 441         /*
 442          * If we are being called from when the device is being reset,
 443          * delay processing of the command until later.
 444          */
 445         if (pDev->state & DPTI_DEV_RESET ) {
 446                 return FAILED;
 447         }
 448         return adpt_scsi_to_i2o(pHba, cmd, pDev);
 449 }
 450
 451 static int adpt_bios_param(struct scsi_device *sdev, struct block_device *dev,
 452                 sector_t capacity, int geom[])
 453 {
 454         int heads=-1;
 455         int sectors=-1;
 456         int cylinders=-1;
 457
 458         // *** First lets set the default geometry ****
 459
 460         // If the capacity is less than ox2000
 461         if (capacity < 0x2000 ) {       // floppy
 462                 heads = 18;
 463                 sectors = 2;
 464         }
 465         // else if between 0x2000 and 0x20000
 466         else if (capacity < 0x20000) {
 467                 heads = 64;
 468                 sectors = 32;
 469         }
 470         // else if between 0x20000 and 0x40000
 471         else if (capacity < 0x40000) {
 472                 heads = 65;
 473                 sectors = 63;
 474         }
 475         // else if between 0x4000 and 0x80000
 476         else if (capacity < 0x80000) {
 477                 heads = 128;
 478                 sectors = 63;
 479         }
 480         // else if greater than 0x80000
 481         else {
 482                 heads = 255;
 483                 sectors = 63;
 484         }
 485         cylinders = sector_div(capacity, heads * sectors);
 486
 487         // Special case if CDROM
 488         if(sdev->type == 5) {  // CDROM
 489                 heads = 252;
 490                 sectors = 63;
 491                 cylinders = 1111;
 492         }
 493
 494         geom[0] = heads;
 495         geom[1] = sectors;
 496         geom[2] = cylinders;
 497
 498         PDEBUG("adpt_bios_param: exit\n");
 499         return 0;
 500 }
 501
 502
 503 static const char *adpt_info(struct Scsi_Host *host)
 504 {
 505         adpt_hba* pHba;
 506
 507         pHba = (adpt_hba *) host->hostdata[0];
 508         return (char *) (pHba->detail);
 509 }
 510
 511 static int adpt_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
 512                   int length, int inout)
 513 {
 514         struct adpt_device* d;
 515         int id;
 516         int chan;
 517         int len = 0;
 518         int begin = 0;
 519         int pos = 0;
 520         adpt_hba* pHba;
 521         int unit;
 522
 523         *start = buffer;
 524         if (inout == TRUE) {
 525                 /*
 526                  * The user has done a write and wants us to take the
 527                  * data in the buffer and do something with it.
 528                  * proc_scsiwrite calls us with inout = 1
 529                  *
 530                  * Read data from buffer (writing to us) - NOT SUPPORTED
 531                  */
 532                 return -EINVAL;
 533         }
 534
 535         /*
 536          * inout = 0 means the user has done a read and wants information
 537          * returned, so we write information about the cards into the buffer
 538          * proc_scsiread() calls us with inout = 0
 539          */
 540
 541         // Find HBA (host bus adapter) we are looking for
 542         mutex_lock(&adpt_configuration_lock);
 543         for (pHba = hba_chain; pHba; pHba = pHba->next) {
 544                 if (pHba->host == host) {
 545                         break;  /* found adapter */
 546                 }
 547         }
 548         mutex_unlock(&adpt_configuration_lock);
 549         if (pHba == NULL) {
 550                 return 0;
 551         }
 552         host = pHba->host;
 553
 554         len  = sprintf(buffer    , "Adaptec I2O RAID Driver Version: %s\n\n", DPT_I2O_VERSION);
 555         len += sprintf(buffer+len, "%s\n", pHba->detail);
 556         len += sprintf(buffer+len, "SCSI Host=scsi%d  Control Node=/dev/%s  irq=%d\n",
 557                         pHba->host->host_no, pHba->name, host->irq);
 558         len += sprintf(buffer+len, "\tpost fifo size  = %d\n\treply fifo size = %d\n\tsg table size   = %d\n\n",
 559                         host->can_queue, (int) pHba->reply_fifo_size , host->sg_tablesize);
 560
 561         pos = begin + len;
 562
 563         /* CHECKPOINT */
 564         if(pos > offset + length) {
 565                 goto stop_output;
 566         }
 567         if(pos <= offset) {
 568                 /*
 569                  * If we haven't even written to where we last left
 570                  * off (the last time we were called), reset the
 571                  * beginning pointer.
 572                  */
 573                 len = 0;
 574                 begin = pos;
 575         }
 576         len +=  sprintf(buffer+len, "Devices:\n");
 577         for(chan = 0; chan < MAX_CHANNEL; chan++) {
 578                 for(id = 0; id < MAX_ID; id++) {
 579                         d = pHba->channel[chan].device[id];
 580                         while(d){
 581                                 len += sprintf(buffer+len,"\t%-24.24s", d->pScsi_dev->vendor);
 582                                 len += sprintf(buffer+len," Rev: %-8.8s\n", d->pScsi_dev->rev);
 583                                 pos = begin + len;
 584
 585
 586                                 /* CHECKPOINT */
 587                                 if(pos > offset + length) {
 588                                         goto stop_output;
 589                                 }
 590                                 if(pos <= offset) {
 591                                         len = 0;
 592                                         begin = pos;
 593                                 }
 594
 595                                 unit = d->pI2o_dev->lct_data.tid;
 596                                 len += sprintf(buffer+len, "\tTID=%d, (Channel=%d, Target=%d, Lun=%d)  (%s)\n\n",
 597                                                unit, (int)d->scsi_channel, (int)d->scsi_id, (int)d->scsi_lun,
 598                                                scsi_device_online(d->pScsi_dev)? "online":"offline");
 599                                 pos = begin + len;
 600
 601                                 /* CHECKPOINT */
 602                                 if(pos > offset + length) {
 603                                         goto stop_output;
 604                                 }
 605                                 if(pos <= offset) {
 606                                         len = 0;
 607                                         begin = pos;
 608                                 }
 609
 610                                 d = d->next_lun;
 611                         }
 612                 }
 613         }
 614
 615         /*
 616          * begin is where we last checked our position with regards to offset
 617          * begin is always less than offset.  len is relative to begin.  It
 618          * is the number of bytes written past begin
 619          *
 620          */
 621 stop_output:
 622         /* stop the output and calculate the correct length */
 623         *(buffer + len) = '\0';
 624
 625         *start = buffer + (offset - begin);     /* Start of wanted data */
 626         len -= (offset - begin);
 627         if(len > length) {
 628                 len = length;
 629         } else if(len < 0){
 630                 len = 0;
 631                 **start = '\0';
 632         }
 633         return len;
 634 }
 635
 636
 637 /*===========================================================================
 638  * Error Handling routines
 639  *===========================================================================
 640  */
 641
 642 static int adpt_abort(struct scsi_cmnd * cmd)
 643 {
 644         adpt_hba* pHba = NULL;  /* host bus adapter structure */
 645         struct adpt_device* dptdevice;  /* dpt per device information */
 646         u32 msg[5];
 647         int rcode;
 648
 649         if(cmd->serial_number == 0){
 650                 return FAILED;
 651         }
 652         pHba = (adpt_hba*) cmd->device->host->hostdata[0];
 653         printk(KERN_INFO"%s: Trying to Abort cmd=%ld\n",pHba->name, cmd->serial_number);
 654         if ((dptdevice = (void*) (cmd->device->hostdata)) == NULL) {
 655                 printk(KERN_ERR "%s: Unable to abort: No device in cmnd\n",pHba->name);
 656                 return FAILED;
 657         }
 658
 659         memset(msg, 0, sizeof(msg));
 660         msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
 661         msg[1] = I2O_CMD_SCSI_ABORT<<24|HOST_TID<<12|dptdevice->tid;
 662         msg[2] = 0;
 663         msg[3]= 0;
 664         msg[4] = (u32)cmd;
 665         if (pHba->host)
 666                 spin_lock_irq(pHba->host->host_lock);
 667         rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER);
 668         if (pHba->host)
 669                 spin_unlock_irq(pHba->host->host_lock);
 670         if (rcode != 0) {
 671                 if(rcode == -EOPNOTSUPP ){
 672                         printk(KERN_INFO"%s: Abort cmd not supported\n",pHba->name);
 673                         return FAILED;
 674                 }
 675                 printk(KERN_INFO"%s: Abort cmd=%ld failed.\n",pHba->name, cmd->serial_number);
 676                 return FAILED;
 677         }
 678         printk(KERN_INFO"%s: Abort cmd=%ld complete.\n",pHba->name, cmd->serial_number);
 679         return SUCCESS;
 680 }
 681
 682
 683 #define I2O_DEVICE_RESET 0x27
 684 // This is the same for BLK and SCSI devices
 685 // NOTE this is wrong in the i2o.h definitions
 686 // This is not currently supported by our adapter but we issue it anyway
 687 static int adpt_device_reset(struct scsi_cmnd* cmd)
 688 {
 689         adpt_hba* pHba;
 690         u32 msg[4];
 691         u32 rcode;
 692         int old_state;
 693         struct adpt_device* d = cmd->device->hostdata;
 694
 695         pHba = (void*) cmd->device->host->hostdata[0];
 696         printk(KERN_INFO"%s: Trying to reset device\n",pHba->name);
 697         if (!d) {
 698                 printk(KERN_INFO"%s: Reset Device: Device Not found\n",pHba->name);
 699                 return FAILED;
 700         }
 701         memset(msg, 0, sizeof(msg));
 702         msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
 703         msg[1] = (I2O_DEVICE_RESET<<24|HOST_TID<<12|d->tid);
 704         msg[2] = 0;
 705         msg[3] = 0;
 706
 707         if (pHba->host)
 708                 spin_lock_irq(pHba->host->host_lock);
 709         old_state = d->state;
 710         d->state |= DPTI_DEV_RESET;
 711         rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
 712         d->state = old_state;
 713         if (pHba->host)
 714                 spin_unlock_irq(pHba->host->host_lock);
 715         if (rcode != 0) {
 716                 if(rcode == -EOPNOTSUPP ){
 717                         printk(KERN_INFO"%s: Device reset not supported\n",pHba->name);
 718                         return FAILED;
 719                 }
 720                 printk(KERN_INFO"%s: Device reset failed\n",pHba->name);
 721                 return FAILED;
 722         } else {
 723                 printk(KERN_INFO"%s: Device reset successful\n",pHba->name);
 724                 return SUCCESS;
 725         }
 726 }
 727
 728
 729 #define I2O_HBA_BUS_RESET 0x87
 730 // This version of bus reset is called by the eh_error handler
 731 static int adpt_bus_reset(struct scsi_cmnd* cmd)
 732 {
 733         adpt_hba* pHba;
 734         u32 msg[4];
 735         u32 rcode;
 736
 737         pHba = (adpt_hba*)cmd->device->host->hostdata[0];
 738         memset(msg, 0, sizeof(msg));
 739         printk(KERN_WARNING"%s: Bus reset: SCSI Bus %d: tid: %d\n",pHba->name, cmd->device->channel,pHba->channel[cmd->device->channel].tid );
 740         msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
 741         msg[1] = (I2O_HBA_BUS_RESET<<24|HOST_TID<<12|pHba->channel[cmd->device->channel].tid);
 742         msg[2] = 0;
 743         msg[3] = 0;
 744         if (pHba->host)
 745                 spin_lock_irq(pHba->host->host_lock);
 746         rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
 747         if (pHba->host)
 748                 spin_unlock_irq(pHba->host->host_lock);
 749         if (rcode != 0) {
 750                 printk(KERN_WARNING"%s: Bus reset failed.\n",pHba->name);
 751                 return FAILED;
 752         } else {
 753                 printk(KERN_WARNING"%s: Bus reset success.\n",pHba->name);
 754                 return SUCCESS;
 755         }
 756 }
 757
 758 // This version of reset is called by the eh_error_handler
 759 static int __adpt_reset(struct scsi_cmnd* cmd)
 760 {
 761         adpt_hba* pHba;
 762         int rcode;
 763         pHba = (adpt_hba*)cmd->device->host->hostdata[0];
 764         printk(KERN_WARNING"%s: Hba Reset: scsi id %d: tid: %d\n",pHba->name,cmd->device->channel,pHba->channel[cmd->device->channel].tid );
 765         rcode =  adpt_hba_reset(pHba);
 766         if(rcode == 0){
 767                 printk(KERN_WARNING"%s: HBA reset complete\n",pHba->name);
 768                 return SUCCESS;
 769         } else {
 770                 printk(KERN_WARNING"%s: HBA reset failed (%x)\n",pHba->name, rcode);
 771                 return FAILED;
 772         }
 773 }
 774
 775 static int adpt_reset(struct scsi_cmnd* cmd)
 776 {
 777         int rc;
 778
 779         spin_lock_irq(cmd->device->host->host_lock);
 780         rc = __adpt_reset(cmd);
 781         spin_unlock_irq(cmd->device->host->host_lock);
 782
 783         return rc;
 784 }
 785
 786 // This version of reset is called by the ioctls and indirectly from eh_error_handler via adpt_reset
 787 static int adpt_hba_reset(adpt_hba* pHba)
 788 {
 789         int rcode;
 790
 791         pHba->state |= DPTI_STATE_RESET;
 792
 793         // Activate does get status , init outbound, and get hrt
 794         if ((rcode=adpt_i2o_activate_hba(pHba)) < 0) {
 795                 printk(KERN_ERR "%s: Could not activate\n", pHba->name);
 796                 adpt_i2o_delete_hba(pHba);
 797                 return rcode;
 798         }
 799
 800         if ((rcode=adpt_i2o_build_sys_table()) < 0) {
 801                 adpt_i2o_delete_hba(pHba);
 802                 return rcode;
 803         }
 804         PDEBUG("%s: in HOLD state\n",pHba->name);
 805
 806         if ((rcode=adpt_i2o_online_hba(pHba)) < 0) {
 807                 adpt_i2o_delete_hba(pHba);
 808                 return rcode;
 809         }
 810         PDEBUG("%s: in OPERATIONAL state\n",pHba->name);
 811
 812         if ((rcode=adpt_i2o_lct_get(pHba)) < 0){
 813                 adpt_i2o_delete_hba(pHba);
 814                 return rcode;
 815         }
 816
 817         if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0){
 818                 adpt_i2o_delete_hba(pHba);
 819                 return rcode;
 820         }
 821         pHba->state &= ~DPTI_STATE_RESET;
 822
 823         adpt_fail_posted_scbs(pHba);
 824         return 0;       /* return success */
 825 }
 826
 827 /*===========================================================================
 828  *
 829  *===========================================================================
 830  */
 831
 832
 833 static void adpt_i2o_sys_shutdown(void)
 834 {
 835         adpt_hba *pHba, *pNext;
 836         struct adpt_i2o_post_wait_data *p1, *old;
 837
 838          printk(KERN_INFO"Shutting down Adaptec I2O controllers.\n");
 839          printk(KERN_INFO"   This could take a few minutes if there are many devices attached\n");
 840         /* Delete all IOPs from the controller chain */
 841         /* They should have already been released by the
 842          * scsi-core
 843          */
 844         for (pHba = hba_chain; pHba; pHba = pNext) {
 845                 pNext = pHba->next;
 846                 adpt_i2o_delete_hba(pHba);
 847         }
 848
 849         /* Remove any timedout entries from the wait queue.  */
 850 //      spin_lock_irqsave(&adpt_post_wait_lock, flags);
 851         /* Nothing should be outstanding at this point so just
 852          * free them
 853          */
 854         for(p1 = adpt_post_wait_queue; p1;) {
 855                 old = p1;
 856                 p1 = p1->next;
 857                 kfree(old);
 858         }
 859 //      spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
 860         adpt_post_wait_queue = NULL;
 861
 862          printk(KERN_INFO "Adaptec I2O controllers down.\n");
 863 }
 864
 865 /*
 866  * reboot/shutdown notification.
 867  *
 868  * - Quiesce each IOP in the system
 869  *
 870  */
 871
 872 #ifdef REBOOT_NOTIFIER
 873 static int adpt_reboot_event(struct notifier_block *n, ulong code, void *p)
 874 {
 875
 876          if(code != SYS_RESTART && code != SYS_HALT && code != SYS_POWER_OFF)
 877                   return NOTIFY_DONE;
 878
 879          adpt_i2o_sys_shutdown();
 880
 881          return NOTIFY_DONE;
 882 }
 883 #endif
 884
 885
 886 static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev)
 887 {
 888
 889         adpt_hba* pHba = NULL;
 890         adpt_hba* p = NULL;
 891         ulong base_addr0_phys = 0;
 892         ulong base_addr1_phys = 0;
 893         u32 hba_map0_area_size = 0;
 894         u32 hba_map1_area_size = 0;
 895         void __iomem *base_addr_virt = NULL;
 896         void __iomem *msg_addr_virt = NULL;
 897
 898         int raptorFlag = FALSE;
 899
 900         if(pci_enable_device(pDev)) {
 901                 return -EINVAL;
 902         }
 903
 904         if (pci_request_regions(pDev, "dpt_i2o")) {
 905                 PERROR("dpti: adpt_config_hba: pci request region failed\n");
 906                 return -EINVAL;
 907         }
 908
 909         pci_set_master(pDev);
 910         if (pci_set_dma_mask(pDev, DMA_64BIT_MASK) &&
 911             pci_set_dma_mask(pDev, DMA_32BIT_MASK))
 912                 return -EINVAL;
 913
 914         base_addr0_phys = pci_resource_start(pDev,0);
 915         hba_map0_area_size = pci_resource_len(pDev,0);
 916
 917         // Check if standard PCI card or single BAR Raptor
 918         if(pDev->device == PCI_DPT_DEVICE_ID){
 919                 if(pDev->subsystem_device >=0xc032 && pDev->subsystem_device <= 0xc03b){
 920                         // Raptor card with this device id needs 4M
 921                         hba_map0_area_size = 0x400000;
 922                 } else { // Not Raptor - it is a PCI card
 923                         if(hba_map0_area_size > 0x100000 ){
 924                                 hba_map0_area_size = 0x100000;
 925                         }
 926                 }
 927         } else {// Raptor split BAR config
 928                 // Use BAR1 in this configuration
 929                 base_addr1_phys = pci_resource_start(pDev,1);
 930                 hba_map1_area_size = pci_resource_len(pDev,1);
 931                 raptorFlag = TRUE;
 932         }
 933
 934         base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size);
 935         if (!base_addr_virt) {
 936                 pci_release_regions(pDev);
 937                 PERROR("dpti: adpt_config_hba: io remap failed\n");
 938                 return -EINVAL;
 939         }
 940
 941         if(raptorFlag == TRUE) {
 942                 msg_addr_virt = ioremap(base_addr1_phys, hba_map1_area_size );
 943                 if (!msg_addr_virt) {
 944                         PERROR("dpti: adpt_config_hba: io remap failed on BAR1\n");
 945                         iounmap(base_addr_virt);
 946                         pci_release_regions(pDev);
 947                         return -EINVAL;
 948                 }
 949         } else {
 950                 msg_addr_virt = base_addr_virt;
 951         }
 952
 953         // Allocate and zero the data structure
 954         pHba = kmalloc(sizeof(adpt_hba), GFP_KERNEL);
 955         if( pHba == NULL) {
 956                 if(msg_addr_virt != base_addr_virt){
 957                         iounmap(msg_addr_virt);
 958                 }
 959                 iounmap(base_addr_virt);
 960                 pci_release_regions(pDev);
 961                 return -ENOMEM;
 962         }
 963         memset(pHba, 0, sizeof(adpt_hba));
 964
 965         mutex_lock(&adpt_configuration_lock);
 966
 967         if(hba_chain != NULL){
 968                 for(p = hba_chain; p->next; p = p->next);
 969                 p->next = pHba;
 970         } else {
 971                 hba_chain = pHba;
 972         }
 973         pHba->next = NULL;
 974         pHba->unit = hba_count;
 975         sprintf(pHba->name, "dpti%d", hba_count);
 976         hba_count++;
 977
 978         mutex_unlock(&adpt_configuration_lock);
 979
 980         pHba->pDev = pDev;
 981         pHba->base_addr_phys = base_addr0_phys;
 982
 983         // Set up the Virtual Base Address of the I2O Device
 984         pHba->base_addr_virt = base_addr_virt;
 985         pHba->msg_addr_virt = msg_addr_virt;
 986         pHba->irq_mask = base_addr_virt+0x30;
 987         pHba->post_port = base_addr_virt+0x40;
 988         pHba->reply_port = base_addr_virt+0x44;
 989
 990         pHba->hrt = NULL;
 991         pHba->lct = NULL;
 992         pHba->lct_size = 0;
 993         pHba->status_block = NULL;
 994         pHba->post_count = 0;
 995         pHba->state = DPTI_STATE_RESET;
 996         pHba->pDev = pDev;
 997         pHba->devices = NULL;
 998
 999         // Initializing the spinlocks
1000         spin_lock_init(&pHba->state_lock);
1001         spin_lock_init(&adpt_post_wait_lock);
1002
1003         if(raptorFlag == 0){
1004                 printk(KERN_INFO"Adaptec I2O RAID controller %d at %p size=%x irq=%d\n",
1005                         hba_count-1, base_addr_virt, hba_map0_area_size, pDev->irq);
1006         } else {
1007                 printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%d\n",hba_count-1, pDev->irq);
1008                 printk(KERN_INFO"     BAR0 %p - size= %x\n",base_addr_virt,hba_map0_area_size);
1009                 printk(KERN_INFO"     BAR1 %p - size= %x\n",msg_addr_virt,hba_map1_area_size);
1010         }
1011
1012         if (request_irq (pDev->irq, adpt_isr, IRQF_SHARED, pHba->name, pHba)) {
1013                 printk(KERN_ERR"%s: Couldn't register IRQ %d\n", pHba->name, pDev->irq);
1014                 adpt_i2o_delete_hba(pHba);
1015                 return -EINVAL;
1016         }
1017
1018         return 0;
1019 }
1020
1021
1022 static void adpt_i2o_delete_hba(adpt_hba* pHba)
1023 {
1024         adpt_hba* p1;
1025         adpt_hba* p2;
1026         struct i2o_device* d;
1027         struct i2o_device* next;
1028         int i;
1029         int j;
1030         struct adpt_device* pDev;
1031         struct adpt_device* pNext;
1032
1033
1034         mutex_lock(&adpt_configuration_lock);
1035         // scsi_unregister calls our adpt_release which
1036         // does a quiese
1037         if(pHba->host){
1038                 free_irq(pHba->host->irq, pHba);
1039         }
1040         p2 = NULL;
1041         for( p1 = hba_chain; p1; p2 = p1,p1=p1->next){
1042                 if(p1 == pHba) {
1043                         if(p2) {
1044                                 p2->next = p1->next;
1045                         } else {
1046                                 hba_chain = p1->next;
1047                         }
1048                         break;
1049                 }
1050         }
1051
1052         hba_count--;
1053         mutex_unlock(&adpt_configuration_lock);
1054
1055         iounmap(pHba->base_addr_virt);
1056         pci_release_regions(pHba->pDev);
1057         if(pHba->msg_addr_virt != pHba->base_addr_virt){
1058                 iounmap(pHba->msg_addr_virt);
1059         }
1060         kfree(pHba->hrt);
1061         kfree(pHba->lct);
1062         kfree(pHba->status_block);
1063         kfree(pHba->reply_pool);
1064
1065         for(d = pHba->devices; d ; d = next){
1066                 next = d->next;
1067                 kfree(d);
1068         }
1069         for(i = 0 ; i < pHba->top_scsi_channel ; i++){
1070                 for(j = 0; j < MAX_ID; j++){
1071                         if(pHba->channel[i].device[j] != NULL){
1072                                 for(pDev = pHba->channel[i].device[j]; pDev; pDev = pNext){
1073                                         pNext = pDev->next_lun;
1074                                         kfree(pDev);
1075                                 }
1076                         }
1077                 }
1078         }
1079         pci_dev_put(pHba->pDev);
1080         kfree(pHba);
1081
1082         if(hba_count <= 0){
1083                 unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER);
1084         }
1085 }
1086
1087
1088 static int adpt_init(void)
1089 {
1090         printk("Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "\n");
1091 #ifdef REBOOT_NOTIFIER
1092         register_reboot_notifier(&adpt_reboot_notifier);
1093 #endif
1094
1095         return 0;
1096 }
1097
1098
1099 static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u32 lun)
1100 {
1101         struct adpt_device* d;
1102
1103         if(chan < 0 || chan >= MAX_CHANNEL)
1104                 return NULL;
1105
1106         if( pHba->channel[chan].device == NULL){
1107                 printk(KERN_DEBUG"Adaptec I2O RAID: Trying to find device before they are allocated\n");
1108                 return NULL;
1109         }
1110
1111         d = pHba->channel[chan].device[id];
1112         if(!d || d->tid == 0) {
1113                 return NULL;
1114         }
1115
1116         /* If it is the only lun at that address then this should match*/
1117         if(d->scsi_lun == lun){
1118                 return d;
1119         }
1120
1121         /* else we need to look through all the luns */
1122         for(d=d->next_lun ; d ; d = d->next_lun){
1123                 if(d->scsi_lun == lun){
1124                         return d;
1125                 }
1126         }
1127         return NULL;
1128 }
1129
1130
1131 static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout)
1132 {
1133         // I used my own version of the WAIT_QUEUE_HEAD
1134         // to handle some version differences
1135         // When embedded in the kernel this could go back to the vanilla one
1136         ADPT_DECLARE_WAIT_QUEUE_HEAD(adpt_wq_i2o_post);
1137         int status = 0;
1138         ulong flags = 0;
1139         struct adpt_i2o_post_wait_data *p1, *p2;
1140         struct adpt_i2o_post_wait_data *wait_data =
1141                 kmalloc(sizeof(struct adpt_i2o_post_wait_data),GFP_KERNEL);
1142         DECLARE_WAITQUEUE(wait, current);
1143
1144         if (!wait_data)
1145                 return -ENOMEM;
1146
1147         /*
1148          * The spin locking is needed to keep anyone from playing
1149          * with the queue pointers and id while we do the same
1150          */
1151         spin_lock_irqsave(&adpt_post_wait_lock, flags);
1152        // TODO we need a MORE unique way of getting ids
1153        // to support async LCT get
1154         wait_data->next = adpt_post_wait_queue;
1155         adpt_post_wait_queue = wait_data;
1156         adpt_post_wait_id++;
1157         adpt_post_wait_id &= 0x7fff;
1158         wait_data->id =  adpt_post_wait_id;
1159         spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
1160
1161         wait_data->wq = &adpt_wq_i2o_post;
1162         wait_data->status = -ETIMEDOUT;
1163
1164         add_wait_queue(&adpt_wq_i2o_post, &wait);
1165
1166         msg[2] |= 0x80000000 | ((u32)wait_data->id);
1167         timeout *= HZ;
1168         if((status = adpt_i2o_post_this(pHba, msg, len)) == 0){
1169                 set_current_state(TASK_INTERRUPTIBLE);
1170                 if(pHba->host)
1171                         spin_unlock_irq(pHba->host->host_lock);
1172                 if (!timeout)
1173                         schedule();
1174                 else{
1175                         timeout = schedule_timeout(timeout);
1176                         if (timeout == 0) {
1177                                 // I/O issued, but cannot get result in
1178                                 // specified time. Freeing resorces is
1179                                 // dangerous.
1180                                 status = -ETIME;
1181                         }
1182                 }
1183                 if(pHba->host)
1184                         spin_lock_irq(pHba->host->host_lock);
1185         }
1186         remove_wait_queue(&adpt_wq_i2o_post, &wait);
1187
1188         if(status == -ETIMEDOUT){
1189                 printk(KERN_INFO"dpti%d: POST WAIT TIMEOUT\n",pHba->unit);
1190                 // We will have to free the wait_data memory during shutdown
1191                 return status;
1192         }
1193
1194         /* Remove the entry from the queue.  */
1195         p2 = NULL;
1196         spin_lock_irqsave(&adpt_post_wait_lock, flags);
1197         for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p1->next) {
1198                 if(p1 == wait_data) {
1199                         if(p1->status == I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION ) {
1200                                 status = -EOPNOTSUPP;
1201                         }
1202                         if(p2) {
1203                                 p2->next = p1->next;
1204                         } else {
1205                                 adpt_post_wait_queue = p1->next;
1206                         }
1207                         break;
1208                 }
1209         }
1210         spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
1211
1212         kfree(wait_data);
1213
1214         return status;
1215 }
1216
1217
1218 static s32 adpt_i2o_post_this(adpt_hba* pHba, u32* data, int len)
1219 {
1220
1221         u32 m = EMPTY_QUEUE;
1222         u32 __iomem *msg;
1223         ulong timeout = jiffies + 30*HZ;
1224         do {
1225                 rmb();
1226                 m = readl(pHba->post_port);
1227                 if (m != EMPTY_QUEUE) {
1228                         break;
1229                 }
1230                 if(time_after(jiffies,timeout)){
1231                         printk(KERN_WARNING"dpti%d: Timeout waiting for message frame!\n", pHba->unit);
1232                         return -ETIMEDOUT;
1233                 }
1234                 schedule_timeout_uninterruptible(1);
1235         } while(m == EMPTY_QUEUE);
1236
1237         msg = pHba->msg_addr_virt + m;
1238         memcpy_toio(msg, data, len);
1239         wmb();
1240
1241         //post message
1242         writel(m, pHba->post_port);
1243         wmb();
1244
1245         return 0;
1246 }
1247
1248
1249 static void adpt_i2o_post_wait_complete(u32 context, int status)
1250 {
1251         struct adpt_i2o_post_wait_data *p1 = NULL;
1252         /*
1253          * We need to search through the adpt_post_wait
1254          * queue to see if the given message is still
1255          * outstanding.  If not, it means that the IOP
1256          * took longer to respond to the message than we
1257          * had allowed and timer has already expired.
1258          * Not much we can do about that except log
1259          * it for debug purposes, increase timeout, and recompile
1260          *
1261          * Lock needed to keep anyone from moving queue pointers
1262          * around while we're looking through them.
1263          */
1264
1265         context &= 0x7fff;
1266
1267         spin_lock(&adpt_post_wait_lock);
1268         for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
1269                 if(p1->id == context) {
1270                         p1->status = status;
1271                         spin_unlock(&adpt_post_wait_lock);
1272                         wake_up_interruptible(p1->wq);
1273                         return;
1274                 }
1275         }
1276         spin_unlock(&adpt_post_wait_lock);
1277         // If this happens we lose commands that probably really completed
1278         printk(KERN_DEBUG"dpti: Could Not find task %d in wait queue\n",context);
1279         printk(KERN_DEBUG"      Tasks in wait queue:\n");
1280         for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
1281                 printk(KERN_DEBUG"           %d\n",p1->id);
1282         }
1283         return;
1284 }
1285
1286 static s32 adpt_i2o_reset_hba(adpt_hba* pHba)
1287 {
1288         u32 msg[8];
1289         u8* status;
1290         u32 m = EMPTY_QUEUE ;
1291         ulong timeout = jiffies + (TMOUT_IOPRESET*HZ);
1292
1293         if(pHba->initialized  == FALSE) {       // First time reset should be quick
1294                 timeout = jiffies + (25*HZ);
1295         } else {
1296                 adpt_i2o_quiesce_hba(pHba);
1297         }
1298
1299         do {
1300                 rmb();
1301                 m = readl(pHba->post_port);
1302                 if (m != EMPTY_QUEUE) {
1303                         break;
1304                 }
1305                 if(time_after(jiffies,timeout)){
1306                         printk(KERN_WARNING"Timeout waiting for message!\n");
1307                         return -ETIMEDOUT;
1308                 }
1309                 schedule_timeout_uninterruptible(1);
1310         } while (m == EMPTY_QUEUE);
1311
1312         status = kzalloc(4, GFP_KERNEL|ADDR32);
1313         if(status == NULL) {
1314                 adpt_send_nop(pHba, m);
1315                 printk(KERN_ERR"IOP reset failed - no free memory.\n");
1316                 return -ENOMEM;
1317         }
1318
1319         msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0;
1320         msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID;
1321         msg[2]=0;
1322         msg[3]=0;
1323         msg[4]=0;
1324         msg[5]=0;
1325         msg[6]=virt_to_bus(status);
1326         msg[7]=0;
1327
1328         memcpy_toio(pHba->msg_addr_virt+m, msg, sizeof(msg));
1329         wmb();
1330         writel(m, pHba->post_port);
1331         wmb();
1332
1333         while(*status == 0){
1334                 if(time_after(jiffies,timeout)){
1335                         printk(KERN_WARNING"%s: IOP Reset Timeout\n",pHba->name);
1336                         kfree(status);
1337                         return -ETIMEDOUT;
1338                 }
1339                 rmb();
1340                 schedule_timeout_uninterruptible(1);
1341         }
1342
1343         if(*status == 0x01 /*I2O_EXEC_IOP_RESET_IN_PROGRESS*/) {
1344                 PDEBUG("%s: Reset in progress...\n", pHba->name);
1345                 // Here we wait for message frame to become available
1346                 // indicated that reset has finished
1347                 do {
1348                         rmb();
1349                         m = readl(pHba->post_port);
1350                         if (m != EMPTY_QUEUE) {
1351                                 break;
1352                         }
1353                         if(time_after(jiffies,timeout)){
1354                                 printk(KERN_ERR "%s:Timeout waiting for IOP Reset.\n",pHba->name);
1355                                 return -ETIMEDOUT;
1356                         }
1357                         schedule_timeout_uninterruptible(1);
1358                 } while (m == EMPTY_QUEUE);
1359                 // Flush the offset
1360                 adpt_send_nop(pHba, m);
1361         }
1362         adpt_i2o_status_get(pHba);
1363         if(*status == 0x02 ||
1364                         pHba->status_block->iop_state != ADAPTER_STATE_RESET) {
1365                 printk(KERN_WARNING"%s: Reset reject, trying to clear\n",
1366                                 pHba->name);
1367         } else {
1368                 PDEBUG("%s: Reset completed.\n", pHba->name);
1369         }
1370
1371         kfree(status);
1372 #ifdef UARTDELAY
1373         // This delay is to allow someone attached to the card through the debug UART to
1374         // set up the dump levels that they want before the rest of the initialization sequence
1375         adpt_delay(20000);
1376 #endif
1377         return 0;
1378 }
1379
1380
1381 static int adpt_i2o_parse_lct(adpt_hba* pHba)
1382 {
1383         int i;
1384         int max;
1385         int tid;
1386         struct i2o_device *d;
1387         i2o_lct *lct = pHba->lct;
1388         u8 bus_no = 0;
1389         s16 scsi_id;
1390         s16 scsi_lun;
1391         u32 buf[10]; // larger than 7, or 8 ...
1392         struct adpt_device* pDev;
1393
1394         if (lct == NULL) {
1395                 printk(KERN_ERR "%s: LCT is empty???\n",pHba->name);
1396                 return -1;
1397         }
1398
1399         max = lct->table_size;
1400         max -= 3;
1401         max /= 9;
1402
1403         for(i=0;i<max;i++) {
1404                 if( lct->lct_entry[i].user_tid != 0xfff){
1405                         /*
1406                          * If we have hidden devices, we need to inform the upper layers about
1407                          * the possible maximum id reference to handle device access when
1408                          * an array is disassembled. This code has no other purpose but to
1409                          * allow us future access to devices that are currently hidden
1410                          * behind arrays, hotspares or have not been configured (JBOD mode).
1411                          */
1412                         if( lct->lct_entry[i].class_id != I2O_CLASS_RANDOM_BLOCK_STORAGE &&
1413                             lct->lct_entry[i].class_id != I2O_CLASS_SCSI_PERIPHERAL &&
1414                             lct->lct_entry[i].class_id != I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
1415                                 continue;
1416                         }
1417                         tid = lct->lct_entry[i].tid;
1418                         // I2O_DPT_DEVICE_INFO_GROUP_NO;
1419                         if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) {
1420                                 continue;
1421                         }
1422                         bus_no = buf[0]>>16;
1423                         scsi_id = buf[1];
1424                         scsi_lun = (buf[2]>>8 )&0xff;
1425                         if(bus_no >= MAX_CHANNEL) {     // Something wrong skip it
1426                                 printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no);
1427                                 continue;
1428                         }
1429                         if (scsi_id >= MAX_ID){
1430                                 printk(KERN_WARNING"%s: SCSI ID %d out of range \n", pHba->name, bus_no);
1431                                 continue;
1432                         }
1433                         if(bus_no > pHba->top_scsi_channel){
1434                                 pHba->top_scsi_channel = bus_no;
1435                         }
1436                         if(scsi_id > pHba->top_scsi_id){
1437                                 pHba->top_scsi_id = scsi_id;
1438                         }
1439                         if(scsi_lun > pHba->top_scsi_lun){
1440                                 pHba->top_scsi_lun = scsi_lun;
1441                         }
1442                         continue;
1443                 }
1444                 d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
1445                 if(d==NULL)
1446                 {
1447                         printk(KERN_CRIT"%s: Out of memory for I2O device data.\n",pHba->name);
1448                         return -ENOMEM;
1449                 }
1450
1451                 d->controller = pHba;
1452                 d->next = NULL;
1453
1454                 memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
1455
1456                 d->flags = 0;
1457                 tid = d->lct_data.tid;
1458                 adpt_i2o_report_hba_unit(pHba, d);
1459                 adpt_i2o_install_device(pHba, d);
1460         }
1461         bus_no = 0;
1462         for(d = pHba->devices; d ; d = d->next) {
1463                 if(d->lct_data.class_id  == I2O_CLASS_BUS_ADAPTER_PORT ||
1464                    d->lct_data.class_id  == I2O_CLASS_FIBRE_CHANNEL_PORT){
1465                         tid = d->lct_data.tid;
1466                         // TODO get the bus_no from hrt-but for now they are in order
1467                         //bus_no =
1468                         if(bus_no > pHba->top_scsi_channel){
1469                                 pHba->top_scsi_channel = bus_no;
1470                         }
1471                         pHba->channel[bus_no].type = d->lct_data.class_id;
1472                         pHba->channel[bus_no].tid = tid;
1473                         if(adpt_i2o_query_scalar(pHba, tid, 0x0200, -1, buf, 28)>=0)
1474                         {
1475                                 pHba->channel[bus_no].scsi_id = buf[1];
1476                                 PDEBUG("Bus %d - SCSI ID %d.\n", bus_no, buf[1]);
1477                         }
1478                         // TODO remove - this is just until we get from hrt
1479                         bus_no++;
1480                         if(bus_no >= MAX_CHANNEL) {     // Something wrong skip it
1481                                 printk(KERN_WARNING"%s: Channel number %d out of range - LCT\n", pHba->name, bus_no);
1482                                 break;
1483                         }
1484                 }
1485         }
1486
1487         // Setup adpt_device table
1488         for(d = pHba->devices; d ; d = d->next) {
1489                 if(d->lct_data.class_id  == I2O_CLASS_RANDOM_BLOCK_STORAGE ||
1490                    d->lct_data.class_id  == I2O_CLASS_SCSI_PERIPHERAL ||
1491                    d->lct_data.class_id  == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
1492
1493                         tid = d->lct_data.tid;
1494                         scsi_id = -1;
1495                         // I2O_DPT_DEVICE_INFO_GROUP_NO;
1496                         if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)>=0) {
1497                                 bus_no = buf[0]>>16;
1498                                 scsi_id = buf[1];
1499                                 scsi_lun = (buf[2]>>8 )&0xff;
1500                                 if(bus_no >= MAX_CHANNEL) {     // Something wrong skip it
1501                                         continue;
1502                                 }
1503                                 if (scsi_id >= MAX_ID) {
1504                                         continue;
1505                                 }
1506                                 if( pHba->channel[bus_no].device[scsi_id] == NULL){
1507                                         pDev =  kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
1508                                         if(pDev == NULL) {
1509                                                 return -ENOMEM;
1510                                         }
1511                                         pHba->channel[bus_no].device[scsi_id] = pDev;
1512                                 } else {
1513                                         for( pDev = pHba->channel[bus_no].device[scsi_id];
1514                                                         pDev->next_lun; pDev = pDev->next_lun){
1515                                         }
1516                                         pDev->next_lun = kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
1517                                         if(pDev->next_lun == NULL) {
1518                                                 return -ENOMEM;
1519                                         }
1520                                         pDev = pDev->next_lun;
1521                                 }
1522                                 pDev->tid = tid;
1523                                 pDev->scsi_channel = bus_no;
1524                                 pDev->scsi_id = scsi_id;
1525                                 pDev->scsi_lun = scsi_lun;
1526                                 pDev->pI2o_dev = d;
1527                                 d->owner = pDev;
1528                                 pDev->type = (buf[0])&0xff;
1529                                 pDev->flags = (buf[0]>>8)&0xff;
1530                                 if(scsi_id > pHba->top_scsi_id){
1531                                         pHba->top_scsi_id = scsi_id;
1532                                 }
1533                                 if(scsi_lun > pHba->top_scsi_lun){
1534                                         pHba->top_scsi_lun = scsi_lun;
1535                                 }
1536                         }
1537                         if(scsi_id == -1){
1538                                 printk(KERN_WARNING"Could not find SCSI ID for %s\n",
1539                                                 d->lct_data.identity_tag);
1540                         }
1541                 }
1542         }
1543         return 0;
1544 }
1545
1546
1547 /*
1548  *      Each I2O controller has a chain of devices on it - these match
1549  *      the useful parts of the LCT of the board.
1550  */
1551
1552 static int adpt_i2o_install_device(adpt_hba* pHba, struct i2o_device *d)
1553 {
1554         mutex_lock(&adpt_configuration_lock);
1555         d->controller=pHba;
1556         d->owner=NULL;
1557         d->next=pHba->devices;
1558         d->prev=NULL;
1559         if (pHba->devices != NULL){
1560                 pHba->devices->prev=d;
1561         }
1562         pHba->devices=d;
1563         *d->dev_name = 0;
1564
1565         mutex_unlock(&adpt_configuration_lock);
1566         return 0;
1567 }
1568
1569 static int adpt_open(struct inode *inode, struct file *file)
1570 {
1571         int minor;
1572         adpt_hba* pHba;
1573
1574         //TODO check for root access
1575         //
1576         minor = iminor(inode);
1577         if (minor >= hba_count) {
1578                 return -ENXIO;
1579         }
1580         mutex_lock(&adpt_configuration_lock);
1581         for (pHba = hba_chain; pHba; pHba = pHba->next) {
1582                 if (pHba->unit == minor) {
1583                         break;  /* found adapter */
1584                 }
1585         }
1586         if (pHba == NULL) {
1587                 mutex_unlock(&adpt_configuration_lock);
1588                 return -ENXIO;
1589         }
1590
1591 //      if(pHba->in_use){
1592         //      mutex_unlock(&adpt_configuration_lock);
1593 //              return -EBUSY;
1594 //      }
1595
1596         pHba->in_use = 1;
1597         mutex_unlock(&adpt_configuration_lock);
1598
1599         return 0;
1600 }
1601
1602 static int adpt_close(struct inode *inode, struct file *file)
1603 {
1604         int minor;
1605         adpt_hba* pHba;
1606
1607         minor = iminor(inode);
1608         if (minor >= hba_count) {
1609                 return -ENXIO;
1610         }
1611         mutex_lock(&adpt_configuration_lock);
1612         for (pHba = hba_chain; pHba; pHba = pHba->next) {
1613                 if (pHba->unit == minor) {
1614                         break;  /* found adapter */
1615                 }
1616         }
1617         mutex_unlock(&adpt_configuration_lock);
1618         if (pHba == NULL) {
1619                 return -ENXIO;
1620         }
1621
1622         pHba->in_use = 0;
1623
1624         return 0;
1625 }
1626
1627
1628 static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
1629 {
1630         u32 msg[MAX_MESSAGE_SIZE];
1631         u32* reply = NULL;
1632         u32 size = 0;
1633         u32 reply_size = 0;
1634         u32 __user *user_msg = arg;
1635         u32 __user * user_reply = NULL;
1636         void *sg_list[pHba->sg_tablesize];
1637         u32 sg_offset = 0;
1638         u32 sg_count = 0;
1639         int sg_index = 0;
1640         u32 i = 0;
1641         u32 rcode = 0;
1642         void *p = NULL;
1643         ulong flags = 0;
1644
1645         memset(&msg, 0, MAX_MESSAGE_SIZE*4);
1646         // get user msg size in u32s
1647         if(get_user(size, &user_msg[0])){
1648                 return -EFAULT;
1649         }
1650         size = size>>16;
1651
1652         user_reply = &user_msg[size];
1653         if(size > MAX_MESSAGE_SIZE){
1654                 return -EFAULT;
1655         }
1656         size *= 4; // Convert to bytes
1657
1658         /* Copy in the user's I2O command */
1659         if(copy_from_user(msg, user_msg, size)) {
1660                 return -EFAULT;
1661         }
1662         get_user(reply_size, &user_reply[0]);
1663         reply_size = reply_size>>16;
1664         if(reply_size > REPLY_FRAME_SIZE){
1665                 reply_size = REPLY_FRAME_SIZE;
1666         }
1667         reply_size *= 4;
1668         reply = kzalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL);
1669         if(reply == NULL) {
1670                 printk(KERN_WARNING"%s: Could not allocate reply buffer\n",pHba->name);
1671                 return -ENOMEM;
1672         }
1673         sg_offset = (msg[0]>>4)&0xf;
1674         msg[2] = 0x40000000; // IOCTL context
1675         msg[3] = (u32)reply;
1676         memset(sg_list,0, sizeof(sg_list[0])*pHba->sg_tablesize);
1677         if(sg_offset) {
1678                 // TODO 64bit fix
1679                 struct sg_simple_element *sg =  (struct sg_simple_element*) (msg+sg_offset);
1680                 sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
1681                 if (sg_count > pHba->sg_tablesize){
1682                         printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", pHba->name,sg_count);
1683                         kfree (reply);
1684                         return -EINVAL;
1685                 }
1686
1687                 for(i = 0; i < sg_count; i++) {
1688                         int sg_size;
1689
1690                         if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) {
1691                                 printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",pHba->name,i,  sg[i].flag_count);
1692                                 rcode = -EINVAL;
1693                                 goto cleanup;
1694                         }
1695                         sg_size = sg[i].flag_count & 0xffffff;
1696                         /* Allocate memory for the transfer */
1697                         p = kmalloc(sg_size, GFP_KERNEL|ADDR32);
1698                         if(!p) {
1699                                 printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
1700                                                 pHba->name,sg_size,i,sg_count);
1701                                 rcode = -ENOMEM;
1702                                 goto cleanup;
1703                         }
1704                         sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
1705                         /* Copy in the user's SG buffer if necessary */
1706                         if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) {
1707                                 // TODO 64bit fix
1708                                 if (copy_from_user(p,(void __user *)sg[i].addr_bus, sg_size)) {
1709                                         printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",pHba->name,i);
1710                                         rcode = -EFAULT;
1711                                         goto cleanup;
1712                                 }
1713                         }
1714                         //TODO 64bit fix
1715                         sg[i].addr_bus = (u32)virt_to_bus(p);
1716                 }
1717         }
1718
1719         do {
1720                 if(pHba->host)
1721                         spin_lock_irqsave(pHba->host->host_lock, flags);
1722                 // This state stops any new commands from enterring the
1723                 // controller while processing the ioctl
1724 //              pHba->state |= DPTI_STATE_IOCTL;
1725 //              We can't set this now - The scsi subsystem sets host_blocked and
1726 //              the queue empties and stops.  We need a way to restart the queue
1727                 rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER);
1728                 if (rcode != 0)
1729                         printk("adpt_i2o_passthru: post wait failed %d %p\n",
1730                                         rcode, reply);
1731 //              pHba->state &= ~DPTI_STATE_IOCTL;
1732                 if(pHba->host)
1733                         spin_unlock_irqrestore(pHba->host->host_lock, flags);
1734         } while(rcode == -ETIMEDOUT);
1735
1736         if(rcode){
1737                 goto cleanup;
1738         }
1739
1740         if(sg_offset) {
1741         /* Copy back the Scatter Gather buffers back to user space */
1742                 u32 j;
1743                 // TODO 64bit fix
1744                 struct sg_simple_element* sg;
1745                 int sg_size;
1746
1747                 // re-acquire the original message to handle correctly the sg copy operation
1748                 memset(&msg, 0, MAX_MESSAGE_SIZE*4);
1749                 // get user msg size in u32s
1750                 if(get_user(size, &user_msg[0])){
1751                         rcode = -EFAULT;
1752                         goto cleanup;
1753                 }
1754                 size = size>>16;
1755                 size *= 4;
1756                 /* Copy in the user's I2O command */
1757                 if (copy_from_user (msg, user_msg, size)) {
1758                         rcode = -EFAULT;
1759                         goto cleanup;
1760                 }
1761                 sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
1762
1763                 // TODO 64bit fix
1764                 sg       = (struct sg_simple_element*)(msg + sg_offset);
1765                 for (j = 0; j < sg_count; j++) {
1766                         /* Copy out the SG list to user's buffer if necessary */
1767                         if(! (sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) {
1768                                 sg_size = sg[j].flag_count & 0xffffff;
1769                                 // TODO 64bit fix
1770                                 if (copy_to_user((void __user *)sg[j].addr_bus,sg_list[j], sg_size)) {
1771                                         printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",pHba->name, sg_list[j], sg[j].addr_bus);
1772                                         rcode = -EFAULT;
1773                                         goto cleanup;
1774                                 }
1775                         }
1776                 }
1777         }
1778
1779         /* Copy back the reply to user space */
1780         if (reply_size) {
1781                 // we wrote our own values for context - now restore the user supplied ones
1782                 if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) {
1783                         printk(KERN_WARNING"%s: Could not copy message context FROM user\n",pHba->name);
1784                         rcode = -EFAULT;
1785                 }
1786                 if(copy_to_user(user_reply, reply, reply_size)) {
1787                         printk(KERN_WARNING"%s: Could not copy reply TO user\n",pHba->name);
1788                         rcode = -EFAULT;
1789                 }
1790         }
1791
1792
1793 cleanup:
1794         if (rcode != -ETIME && rcode != -EINTR)
1795                 kfree (reply);
1796         while(sg_index) {
1797                 if(sg_list[--sg_index]) {
1798                         if (rcode != -ETIME && rcode != -EINTR)
1799                                 kfree(sg_list[sg_index]);
1800                 }
1801         }
1802         return rcode;
1803 }
1804
1805
1806 /*
1807  * This routine returns information about the system.  This does not effect
1808  * any logic and if the info is wrong - it doesn't matter.
1809  */
1810
1811 /* Get all the info we can not get from kernel services */
1812 static int adpt_system_info(void __user *buffer)
1813 {
1814         sysInfo_S si;
1815
1816         memset(&si, 0, sizeof(si));
1817
1818         si.osType = OS_LINUX;
1819         si.osMajorVersion = 0;
1820         si.osMinorVersion = 0;
1821         si.osRevision = 0;
1822         si.busType = SI_PCI_BUS;
1823         si.processorFamily = DPTI_sig.dsProcessorFamily;
1824
1825 #if defined __i386__
1826         adpt_i386_info(&si);
1827 #elif defined (__ia64__)
1828         adpt_ia64_info(&si);
1829 #elif defined(__sparc__)
1830         adpt_sparc_info(&si);
1831 #elif defined (__alpha__)
1832         adpt_alpha_info(&si);
1833 #else
1834         si.processorType = 0xff ;
1835 #endif
1836         if(copy_to_user(buffer, &si, sizeof(si))){
1837                 printk(KERN_WARNING"dpti: Could not copy buffer TO user\n");
1838                 return -EFAULT;
1839         }
1840
1841         return 0;
1842 }
1843
1844 #if defined __ia64__
1845 static void adpt_ia64_info(sysInfo_S* si)
1846 {
1847         // This is all the info we need for now
1848         // We will add more info as our new
1849         // managmenent utility requires it
1850         si->processorType = PROC_IA64;
1851 }
1852 #endif
1853
1854
1855 #if defined __sparc__
1856 static void adpt_sparc_info(sysInfo_S* si)
1857 {
1858         // This is all the info we need for now
1859         // We will add more info as our new
1860         // managmenent utility requires it
1861         si->processorType = PROC_ULTRASPARC;
1862 }
1863 #endif
1864
1865 #if defined __alpha__
1866 static void adpt_alpha_info(sysInfo_S* si)
1867 {
1868         // This is all the info we need for now
1869         // We will add more info as our new
1870         // managmenent utility requires it
1871         si->processorType = PROC_ALPHA;
1872 }
1873 #endif
1874
1875 #if defined __i386__
1876
1877 static void adpt_i386_info(sysInfo_S* si)
1878 {
1879         // This is all the info we need for now
1880         // We will add more info as our new
1881         // managmenent utility requires it
1882         switch (boot_cpu_data.x86) {
1883         case CPU_386:
1884                 si->processorType = PROC_386;
1885                 break;
1886         case CPU_486:
1887                 si->processorType = PROC_486;
1888                 break;
1889         case CPU_586:
1890                 si->processorType = PROC_PENTIUM;
1891                 break;
1892         default:  // Just in case
1893                 si->processorType = PROC_PENTIUM;
1894                 break;
1895         }
1896 }
1897
1898 #endif
1899
1900
1901 static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd,
1902               ulong arg)
1903 {
1904         int minor;
1905         int error = 0;
1906         adpt_hba* pHba;
1907         ulong flags = 0;
1908         void __user *argp = (void __user *)arg;
1909
1910         minor = iminor(inode);
1911         if (minor >= DPTI_MAX_HBA){
1912                 return -ENXIO;
1913         }
1914         mutex_lock(&adpt_configuration_lock);
1915         for (pHba = hba_chain; pHba; pHba = pHba->next) {
1916                 if (pHba->unit == minor) {
1917                         break;  /* found adapter */
1918                 }
1919         }
1920         mutex_unlock(&adpt_configuration_lock);
1921         if(pHba == NULL){
1922                 return -ENXIO;
1923         }
1924
1925         while((volatile u32) pHba->state & DPTI_STATE_RESET )
1926                 schedule_timeout_uninterruptible(2);
1927
1928         switch (cmd) {
1929         // TODO: handle 3 cases
1930         case DPT_SIGNATURE:
1931                 if (copy_to_user(argp, &DPTI_sig, sizeof(DPTI_sig))) {
1932                         return -EFAULT;
1933                 }
1934                 break;
1935         case I2OUSRCMD:
1936                 return adpt_i2o_passthru(pHba, argp);
1937
1938         case DPT_CTRLINFO:{
1939                 drvrHBAinfo_S HbaInfo;
1940
1941 #define FLG_OSD_PCI_VALID 0x0001
1942 #define FLG_OSD_DMA       0x0002
1943 #define FLG_OSD_I2O       0x0004
1944                 memset(&HbaInfo, 0, sizeof(HbaInfo));
1945                 HbaInfo.drvrHBAnum = pHba->unit;
1946                 HbaInfo.baseAddr = (ulong) pHba->base_addr_phys;
1947                 HbaInfo.blinkState = adpt_read_blink_led(pHba);
1948                 HbaInfo.pciBusNum =  pHba->pDev->bus->number;
1949                 HbaInfo.pciDeviceNum=PCI_SLOT(pHba->pDev->devfn);
1950                 HbaInfo.Interrupt = pHba->pDev->irq;
1951                 HbaInfo.hbaFlags = FLG_OSD_PCI_VALID | FLG_OSD_DMA | FLG_OSD_I2O;
1952                 if(copy_to_user(argp, &HbaInfo, sizeof(HbaInfo))){
1953                         printk(KERN_WARNING"%s: Could not copy HbaInfo TO user\n",pHba->name);
1954                         return -EFAULT;
1955                 }
1956                 break;
1957                 }
1958         case DPT_SYSINFO:
1959                 return adpt_system_info(argp);
1960         case DPT_BLINKLED:{
1961                 u32 value;
1962                 value = (u32)adpt_read_blink_led(pHba);
1963                 if (copy_to_user(argp, &value, sizeof(value))) {
1964                         return -EFAULT;
1965                 }
1966                 break;
1967                 }
1968         case I2ORESETCMD:
1969                 if(pHba->host)
1970                         spin_lock_irqsave(pHba->host->host_lock, flags);
1971                 adpt_hba_reset(pHba);
1972                 if(pHba->host)
1973                         spin_unlock_irqrestore(pHba->host->host_lock, flags);
1974                 break;
1975         case I2ORESCANCMD:
1976                 adpt_rescan(pHba);
1977                 break;
1978         default:
1979                 return -EINVAL;
1980         }
1981
1982         return error;
1983 }
1984
1985
1986 static irqreturn_t adpt_isr(int irq, void *dev_id)
1987 {
1988         struct scsi_cmnd* cmd;
1989         adpt_hba* pHba = dev_id;
1990         u32 m;
1991         void __iomem *reply;
1992         u32 status=0;
1993         u32 context;
1994         ulong flags = 0;
1995         int handled = 0;
1996
1997         if (pHba == NULL){
1998                 printk(KERN_WARNING"adpt_isr: NULL dev_id\n");
1999                 return IRQ_NONE;
2000         }
2001         if(pHba->host)
2002                 spin_lock_irqsave(pHba->host->host_lock, flags);
2003
2004         while( readl(pHba->irq_mask) & I2O_INTERRUPT_PENDING_B) {
2005                 m = readl(pHba->reply_port);
2006                 if(m == EMPTY_QUEUE){
2007                         // Try twice then give up
2008                         rmb();
2009                         m = readl(pHba->reply_port);
2010                         if(m == EMPTY_QUEUE){
2011                                 // This really should not happen
2012                                 printk(KERN_ERR"dpti: Could not get reply frame\n");
2013                                 goto out;
2014                         }
2015                 }
2016                 reply = bus_to_virt(m);
2017
2018                 if (readl(reply) & MSG_FAIL) {
2019                         u32 old_m = readl(reply+28);
2020                         void __iomem *msg;
2021                         u32 old_context;
2022                         PDEBUG("%s: Failed message\n",pHba->name);
2023                         if(old_m >= 0x100000){
2024                                 printk(KERN_ERR"%s: Bad preserved MFA (%x)- dropping frame\n",pHba->name,old_m);
2025                                 writel(m,pHba->reply_port);
2026                                 continue;
2027                         }
2028                         // Transaction context is 0 in failed reply frame
2029                         msg = pHba->msg_addr_virt + old_m;
2030                         old_context = readl(msg+12);
2031                         writel(old_context, reply+12);
2032                         adpt_send_nop(pHba, old_m);
2033                 }
2034                 context = readl(reply+8);
2035                 if(context & 0x40000000){ // IOCTL
2036                         void *p = (void *)readl(reply+12);
2037                         if( p != NULL) {
2038                                 memcpy_fromio(p, reply, REPLY_FRAME_SIZE * 4);
2039                         }
2040                         // All IOCTLs will also be post wait
2041                 }
2042                 if(context & 0x80000000){ // Post wait message
2043                         status = readl(reply+16);
2044                         if(status  >> 24){
2045                                 status &=  0xffff; /* Get detail status */
2046                         } else {
2047                                 status = I2O_POST_WAIT_OK;
2048                         }
2049                         if(!(context & 0x40000000)) {
2050                                 cmd = (struct scsi_cmnd*) readl(reply+12);
2051                                 if(cmd != NULL) {
2052                                         printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context);
2053                                 }
2054                         }
2055                         adpt_i2o_post_wait_complete(context, status);
2056                 } else { // SCSI message
2057                         cmd = (struct scsi_cmnd*) readl(reply+12);
2058                         if(cmd != NULL){
2059                                 if(cmd->serial_number != 0) { // If not timedout
2060                                         adpt_i2o_to_scsi(reply, cmd);
2061                                 }
2062                         }
2063                 }
2064                 writel(m, pHba->reply_port);
2065                 wmb();
2066                 rmb();
2067         }
2068         handled = 1;
2069 out:    if(pHba->host)
2070                 spin_unlock_irqrestore(pHba->host->host_lock, flags);
2071         return IRQ_RETVAL(handled);
2072 }
2073
2074 static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* d)
2075 {
2076         int i;
2077         u32 msg[MAX_MESSAGE_SIZE];
2078         u32* mptr;
2079         u32 *lenptr;
2080         int direction;
2081         int scsidir;
2082         u32 len;
2083         u32 reqlen;
2084         s32 rcode;
2085
2086         memset(msg, 0 , sizeof(msg));
2087         len = cmd->request_bufflen;
2088         direction = 0x00000000;
2089
2090         scsidir = 0x00000000;                   // DATA NO XFER
2091         if(len) {
2092                 /*
2093                  * Set SCBFlags to indicate if data is being transferred
2094                  * in or out, or no data transfer
2095                  * Note:  Do not have to verify index is less than 0 since
2096                  * cmd->cmnd[0] is an unsigned char
2097                  */
2098                 switch(cmd->sc_data_direction){
2099                 case DMA_FROM_DEVICE:
2100                         scsidir  =0x40000000;   // DATA IN  (iop<--dev)
2101                         break;
2102                 case DMA_TO_DEVICE:
2103                         direction=0x04000000;   // SGL OUT
2104                         scsidir  =0x80000000;   // DATA OUT (iop-->dev)
2105                         break;
2106                 case DMA_NONE:
2107                         break;
2108                 case DMA_BIDIRECTIONAL:
2109                         scsidir  =0x40000000;   // DATA IN  (iop<--dev)
2110                         // Assume In - and continue;
2111                         break;
2112                 default:
2113                         printk(KERN_WARNING"%s: scsi opcode 0x%x not supported.\n",
2114                              pHba->name, cmd->cmnd[0]);
2115                         cmd->result = (DID_OK <<16) | (INITIATOR_ERROR << 8);
2116                         cmd->scsi_done(cmd);
2117                         return  0;
2118                 }
2119         }
2120         // msg[0] is set later
2121         // I2O_CMD_SCSI_EXEC
2122         msg[1] = ((0xff<<24)|(HOST_TID<<12)|d->tid);
2123         msg[2] = 0;
2124         msg[3] = (u32)cmd;      /* We want the SCSI control block back */
2125         // Our cards use the transaction context as the tag for queueing
2126         // Adaptec/DPT Private stuff
2127         msg[4] = I2O_CMD_SCSI_EXEC|(DPT_ORGANIZATION_ID<<16);
2128         msg[5] = d->tid;
2129         /* Direction, disconnect ok | sense data | simple queue , CDBLen */
2130         // I2O_SCB_FLAG_ENABLE_DISCONNECT |
2131         // I2O_SCB_FLAG_SIMPLE_QUEUE_TAG |
2132         // I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE;
2133         msg[6] = scsidir|0x20a00000|cmd->cmd_len;
2134
2135         mptr=msg+7;
2136
2137         // Write SCSI command into the message - always 16 byte block
2138         memset(mptr, 0,  16);
2139         memcpy(mptr, cmd->cmnd, cmd->cmd_len);
2140         mptr+=4;
2141         lenptr=mptr++;          /* Remember me - fill in when we know */
2142         reqlen = 14;            // SINGLE SGE
2143         /* Now fill in the SGList and command */
2144         if(cmd->use_sg) {
2145                 struct scatterlist *sg = (struct scatterlist *)cmd->request_buffer;
2146                 int sg_count = pci_map_sg(pHba->pDev, sg, cmd->use_sg,
2147                                 cmd->sc_data_direction);
2148
2149
2150                 len = 0;
2151                 for(i = 0 ; i < sg_count; i++) {
2152                         *mptr++ = direction|0x10000000|sg_dma_len(sg);
2153                         len+=sg_dma_len(sg);
2154                         *mptr++ = sg_dma_address(sg);
2155                         sg++;
2156                 }
2157                 /* Make this an end of list */
2158                 mptr[-2] = direction|0xD0000000|sg_dma_len(sg-1);
2159                 reqlen = mptr - msg;
2160                 *lenptr = len;
2161
2162                 if(cmd->underflow && len != cmd->underflow){
2163                         printk(KERN_WARNING"Cmd len %08X Cmd underflow %08X\n",
2164                                 len, cmd->underflow);
2165                 }
2166         } else {
2167                 *lenptr = len = cmd->request_bufflen;
2168                 if(len == 0) {
2169                         reqlen = 12;
2170                 } else {
2171                         *mptr++ = 0xD0000000|direction|cmd->request_bufflen;
2172                         *mptr++ = pci_map_single(pHba->pDev,
2173                                 cmd->request_buffer,
2174                                 cmd->request_bufflen,
2175                                 cmd->sc_data_direction);
2176                 }
2177         }
2178
2179         /* Stick the headers on */
2180         msg[0] = reqlen<<16 | ((reqlen > 12) ? SGL_OFFSET_12 : SGL_OFFSET_0);
2181
2182         // Send it on it's way
2183         rcode = adpt_i2o_post_this(pHba, msg, reqlen<<2);
2184         if (rcode == 0) {
2185                 return 0;
2186         }
2187         return rcode;
2188 }
2189
2190
2191 static s32 adpt_scsi_register(adpt_hba* pHba,struct scsi_host_template * sht)
2192 {
2193         struct Scsi_Host *host = NULL;
2194
2195         host = scsi_register(sht, sizeof(adpt_hba*));
2196         if (host == NULL) {
2197                 printk ("%s: scsi_register returned NULL\n",pHba->name);
2198                 return -1;
2199         }
2200         host->hostdata[0] = (unsigned long)pHba;
2201         pHba->host = host;
2202
2203         host->irq = pHba->pDev->irq;
2204         /* no IO ports, so don't have to set host->io_port and
2205          * host->n_io_port
2206          */
2207         host->io_port = 0;
2208         host->n_io_port = 0;
2209                                 /* see comments in scsi_host.h */
2210         host->max_id = 16;
2211         host->max_lun = 256;
2212         host->max_channel = pHba->top_scsi_channel + 1;
2213         host->cmd_per_lun = 1;
2214         host->unique_id = (uint) pHba;
2215         host->sg_tablesize = pHba->sg_tablesize;
2216         host->can_queue = pHba->post_fifo_size;
2217
2218         return 0;
2219 }
2220
2221
2222 static s32 adpt_i2o_to_scsi(void __iomem *reply, struct scsi_cmnd* cmd)
2223 {
2224         adpt_hba* pHba;
2225         u32 hba_status;
2226         u32 dev_status;
2227         u32 reply_flags = readl(reply) & 0xff00; // Leave it shifted up 8 bits
2228         // I know this would look cleaner if I just read bytes
2229         // but the model I have been using for all the rest of the
2230         // io is in 4 byte words - so I keep that model
2231         u16 detailed_status = readl(reply+16) &0xffff;
2232         dev_status = (detailed_status & 0xff);
2233         hba_status = detailed_status >> 8;
2234
2235         // calculate resid for sg
2236         cmd->resid = cmd->request_bufflen - readl(reply+5);
2237
2238         pHba = (adpt_hba*) cmd->device->host->hostdata[0];
2239
2240         cmd->sense_buffer[0] = '\0';  // initialize sense valid flag to false
2241
2242         if(!(reply_flags & MSG_FAIL)) {
2243                 switch(detailed_status & I2O_SCSI_DSC_MASK) {
2244                 case I2O_SCSI_DSC_SUCCESS:
2245                         cmd->result = (DID_OK << 16);
2246                         // handle underflow
2247                         if(readl(reply+5) < cmd->underflow ) {
2248                                 cmd->result = (DID_ERROR <<16);
2249                                 printk(KERN_WARNING"%s: SCSI CMD underflow\n",pHba->name);
2250                         }
2251                         break;
2252                 case I2O_SCSI_DSC_REQUEST_ABORTED:
2253                         cmd->result = (DID_ABORT << 16);
2254                         break;
2255                 case I2O_SCSI_DSC_PATH_INVALID:
2256                 case I2O_SCSI_DSC_DEVICE_NOT_PRESENT:
2257                 case I2O_SCSI_DSC_SELECTION_TIMEOUT:
2258                 case I2O_SCSI_DSC_COMMAND_TIMEOUT:
2259                 case I2O_SCSI_DSC_NO_ADAPTER:
2260                 case I2O_SCSI_DSC_RESOURCE_UNAVAILABLE:
2261                         printk(KERN_WARNING"%s: SCSI Timeout-Device (%d,%d,%d) hba status=0x%x, dev status=0x%x, cmd=0x%x\n",
2262                                 pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun, hba_status, dev_status, cmd->cmnd[0]);
2263                         cmd->result = (DID_TIME_OUT << 16);
2264                         break;
2265                 case I2O_SCSI_DSC_ADAPTER_BUSY:
2266                 case I2O_SCSI_DSC_BUS_BUSY:
2267                         cmd->result = (DID_BUS_BUSY << 16);
2268                         break;
2269                 case I2O_SCSI_DSC_SCSI_BUS_RESET:
2270                 case I2O_SCSI_DSC_BDR_MESSAGE_SENT:
2271                         cmd->result = (DID_RESET << 16);
2272                         break;
2273                 case I2O_SCSI_DSC_PARITY_ERROR_FAILURE:
2274                         printk(KERN_WARNING"%s: SCSI CMD parity error\n",pHba->name);
2275                         cmd->result = (DID_PARITY << 16);
2276                         break;
2277                 case I2O_SCSI_DSC_UNABLE_TO_ABORT:
2278                 case I2O_SCSI_DSC_COMPLETE_WITH_ERROR:
2279                 case I2O_SCSI_DSC_UNABLE_TO_TERMINATE:
2280                 case I2O_SCSI_DSC_MR_MESSAGE_RECEIVED:
2281                 case I2O_SCSI_DSC_AUTOSENSE_FAILED:
2282                 case I2O_SCSI_DSC_DATA_OVERRUN:
2283                 case I2O_SCSI_DSC_UNEXPECTED_BUS_FREE:
2284                 case I2O_SCSI_DSC_SEQUENCE_FAILURE:
2285                 case I2O_SCSI_DSC_REQUEST_LENGTH_ERROR:
2286                 case I2O_SCSI_DSC_PROVIDE_FAILURE:
2287                 case I2O_SCSI_DSC_REQUEST_TERMINATED:
2288                 case I2O_SCSI_DSC_IDE_MESSAGE_SENT:
2289                 case I2O_SCSI_DSC_UNACKNOWLEDGED_EVENT:
2290                 case I2O_SCSI_DSC_MESSAGE_RECEIVED:
2291                 case I2O_SCSI_DSC_INVALID_CDB:
2292                 case I2O_SCSI_DSC_LUN_INVALID:
2293                 case I2O_SCSI_DSC_SCSI_TID_INVALID:
2294                 case I2O_SCSI_DSC_FUNCTION_UNAVAILABLE:
2295                 case I2O_SCSI_DSC_NO_NEXUS:
2296                 case I2O_SCSI_DSC_CDB_RECEIVED:
2297                 case I2O_SCSI_DSC_LUN_ALREADY_ENABLED:
2298                 case I2O_SCSI_DSC_QUEUE_FROZEN:
2299                 case I2O_SCSI_DSC_REQUEST_INVALID:
2300                 default:
2301                         printk(KERN_WARNING"%s: SCSI error %0x-Device(%d,%d,%d) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
2302                                 pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun,
2303                                hba_status, dev_status, cmd->cmnd[0]);
2304                         cmd->result = (DID_ERROR << 16);
2305                         break;
2306                 }
2307
2308                 // copy over the request sense data if it was a check
2309                 // condition status
2310                 if(dev_status == 0x02 /*CHECK_CONDITION*/) {
2311                         u32 len = sizeof(cmd->sense_buffer);
2312                         len = (len > 40) ?  40 : len;
2313                         // Copy over the sense data
2314                         memcpy_fromio(cmd->sense_buffer, (reply+28) , len);
2315                         if(cmd->sense_buffer[0] == 0x70 /* class 7 */ &&
2316                            cmd->sense_buffer[2] == DATA_PROTECT ){
2317                                 /* This is to handle an array failed */
2318                                 cmd->result = (DID_TIME_OUT << 16);
2319                                 printk(KERN_WARNING"%s: SCSI Data Protect-Device (%d,%d,%d) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
2320                                         pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun,
2321                                         hba_status, dev_status, cmd->cmnd[0]);
2322
2323                         }
2324                 }
2325         } else {
2326                 /* In this condtion we could not talk to the tid
2327                  * the card rejected it.  We should signal a retry
2328                  * for a limitted number of retries.
2329                  */
2330                 cmd->result = (DID_TIME_OUT << 16);
2331                 printk(KERN_WARNING"%s: I2O MSG_FAIL - Device (%d,%d,%d) tid=%d, cmd=0x%x\n",
2332                         pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun,
2333                         ((struct adpt_device*)(cmd->device->hostdata))->tid, cmd->cmnd[0]);
2334         }
2335
2336         cmd->result |= (dev_status);
2337
2338         if(cmd->scsi_done != NULL){
2339                 cmd->scsi_done(cmd);
2340         }
2341         return cmd->result;
2342 }
2343
2344
2345 static s32 adpt_rescan(adpt_hba* pHba)
2346 {
2347         s32 rcode;
2348         ulong flags = 0;
2349
2350         if(pHba->host)
2351                 spin_lock_irqsave(pHba->host->host_lock, flags);
2352         if ((rcode=adpt_i2o_lct_get(pHba)) < 0)
2353                 goto out;
2354         if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0)
2355                 goto out;
2356         rcode = 0;
2357 out:    if(pHba->host)
2358                 spin_unlock_irqrestore(pHba->host->host_lock, flags);
2359         return rcode;
2360 }
2361
2362
2363 static s32 adpt_i2o_reparse_lct(adpt_hba* pHba)
2364 {
2365         int i;
2366         int max;
2367         int tid;
2368         struct i2o_device *d;
2369         i2o_lct *lct = pHba->lct;
2370         u8 bus_no = 0;
2371         s16 scsi_id;
2372         s16 scsi_lun;
2373         u32 buf[10]; // at least 8 u32's
2374         struct adpt_device* pDev = NULL;
2375         struct i2o_device* pI2o_dev = NULL;
2376
2377         if (lct == NULL) {
2378                 printk(KERN_ERR "%s: LCT is empty???\n",pHba->name);
2379                 return -1;
2380         }
2381
2382         max = lct->table_size;
2383         max -= 3;
2384         max /= 9;
2385
2386         // Mark each drive as unscanned
2387         for (d = pHba->devices; d; d = d->next) {
2388                 pDev =(struct adpt_device*) d->owner;
2389                 if(!pDev){
2390                         continue;
2391                 }
2392                 pDev->state |= DPTI_DEV_UNSCANNED;
2393         }
2394
2395         printk(KERN_INFO "%s: LCT has %d entries.\n", pHba->name,max);
2396
2397         for(i=0;i<max;i++) {
2398                 if( lct->lct_entry[i].user_tid != 0xfff){
2399                         continue;
2400                 }
2401
2402                 if( lct->lct_entry[i].class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE ||
2403                     lct->lct_entry[i].class_id == I2O_CLASS_SCSI_PERIPHERAL ||
2404                     lct->lct_entry[i].class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
2405                         tid = lct->lct_entry[i].tid;
2406                         if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) {
2407                                 printk(KERN_ERR"%s: Could not query device\n",pHba->name);
2408                                 continue;
2409                         }
2410                         bus_no = buf[0]>>16;
2411                         scsi_id = buf[1];
2412                         scsi_lun = (buf[2]>>8 )&0xff;
2413                         pDev = pHba->channel[bus_no].device[scsi_id];
2414                         /* da lun */
2415                         while(pDev) {
2416                                 if(pDev->scsi_lun == scsi_lun) {
2417                                         break;
2418                                 }
2419                                 pDev = pDev->next_lun;
2420                         }
2421                         if(!pDev ) { // Something new add it
2422                                 d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
2423                                 if(d==NULL)
2424                                 {
2425                                         printk(KERN_CRIT "Out of memory for I2O device data.\n");
2426                                         return -ENOMEM;
2427                                 }
2428
2429                                 d->controller = pHba;
2430                                 d->next = NULL;
2431
2432                                 memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
2433
2434                                 d->flags = 0;
2435                                 adpt_i2o_report_hba_unit(pHba, d);
2436                                 adpt_i2o_install_device(pHba, d);
2437
2438                                 if(bus_no >= MAX_CHANNEL) {     // Something wrong skip it
2439                                         printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no);
2440                                         continue;
2441                                 }
2442                                 pDev = pHba->channel[bus_no].device[scsi_id];
2443                                 if( pDev == NULL){
2444                                         pDev =  kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
2445                                         if(pDev == NULL) {
2446                                                 return -ENOMEM;
2447                                         }
2448                                         pHba->channel[bus_no].device[scsi_id] = pDev;
2449                                 } else {
2450                                         while (pDev->next_lun) {
2451                                                 pDev = pDev->next_lun;
2452                                         }
2453                                         pDev = pDev->next_lun = kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
2454                                         if(pDev == NULL) {
2455                                                 return -ENOMEM;
2456                                         }
2457                                 }
2458                                 pDev->tid = d->lct_data.tid;
2459                                 pDev->scsi_channel = bus_no;
2460                                 pDev->scsi_id = scsi_id;
2461                                 pDev->scsi_lun = scsi_lun;
2462                                 pDev->pI2o_dev = d;
2463                                 d->owner = pDev;
2464                                 pDev->type = (buf[0])&0xff;
2465                                 pDev->flags = (buf[0]>>8)&0xff;
2466                                 // Too late, SCSI system has made up it's mind, but what the hey ...
2467                                 if(scsi_id > pHba->top_scsi_id){
2468                                         pHba->top_scsi_id = scsi_id;
2469                                 }
2470                                 if(scsi_lun > pHba->top_scsi_lun){
2471                                         pHba->top_scsi_lun = scsi_lun;
2472                                 }
2473                                 continue;
2474                         } // end of new i2o device
2475
2476                         // We found an old device - check it
2477                         while(pDev) {
2478                                 if(pDev->scsi_lun == scsi_lun) {
2479                                         if(!scsi_device_online(pDev->pScsi_dev)) {
2480                                                 printk(KERN_WARNING"%s: Setting device (%d,%d,%d) back online\n",
2481                                                                 pHba->name,bus_no,scsi_id,scsi_lun);
2482                                                 if (pDev->pScsi_dev) {
2483                                                         scsi_device_set_state(pDev->pScsi_dev, SDEV_RUNNING);
2484                                                 }
2485                                         }
2486                                         d = pDev->pI2o_dev;
2487                                         if(d->lct_data.tid != tid) { // something changed
2488                                                 pDev->tid = tid;
2489                                                 memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
2490                                                 if (pDev->pScsi_dev) {
2491                                                         pDev->pScsi_dev->changed = TRUE;
2492                                                         pDev->pScsi_dev->removable = TRUE;
2493                                                 }
2494                                         }
2495                                         // Found it - mark it scanned
2496                                         pDev->state = DPTI_DEV_ONLINE;
2497                                         break;
2498                                 }
2499                                 pDev = pDev->next_lun;
2500                         }
2501                 }
2502         }
2503         for (pI2o_dev = pHba->devices; pI2o_dev; pI2o_dev = pI2o_dev->next) {
2504                 pDev =(struct adpt_device*) pI2o_dev->owner;
2505                 if(!pDev){
2506                         continue;
2507                 }
2508                 // Drive offline drives that previously existed but could not be found
2509                 // in the LCT table
2510                 if (pDev->state & DPTI_DEV_UNSCANNED){
2511                         pDev->state = DPTI_DEV_OFFLINE;
2512                         printk(KERN_WARNING"%s: Device (%d,%d,%d) offline\n",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun);
2513                         if (pDev->pScsi_dev) {
2514                                 scsi_device_set_state(pDev->pScsi_dev, SDEV_OFFLINE);
2515                         }
2516                 }
2517         }
2518         return 0;
2519 }
2520
2521 static void adpt_fail_posted_scbs(adpt_hba* pHba)
2522 {
2523         struct scsi_cmnd*       cmd = NULL;
2524         struct scsi_device*     d = NULL;
2525
2526         shost_for_each_device(d, pHba->host) {
2527                 unsigned long flags;
2528                 spin_lock_irqsave(&d->list_lock, flags);
2529                 list_for_each_entry(cmd, &d->cmd_list, list) {
2530                         if(cmd->serial_number == 0){
2531                                 continue;
2532                         }
2533                         cmd->result = (DID_OK << 16) | (QUEUE_FULL <<1);
2534                         cmd->scsi_done(cmd);
2535                 }
2536                 spin_unlock_irqrestore(&d->list_lock, flags);
2537         }
2538 }
2539
2540
2541 /*============================================================================
2542  *  Routines from i2o subsystem
2543  *============================================================================
2544  */
2545
2546
2547
2548 /*
2549  *      Bring an I2O controller into HOLD state. See the spec.
2550  */
2551 static int adpt_i2o_activate_hba(adpt_hba* pHba)
2552 {
2553         int rcode;
2554
2555         if(pHba->initialized ) {
2556                 if (adpt_i2o_status_get(pHba) < 0) {
2557                         if((rcode = adpt_i2o_reset_hba(pHba)) != 0){
2558                                 printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name);
2559                                 return rcode;
2560                         }
2561                         if (adpt_i2o_status_get(pHba) < 0) {
2562                                 printk(KERN_INFO "HBA not responding.\n");
2563                                 return -1;
2564                         }
2565                 }
2566
2567                 if(pHba->status_block->iop_state == ADAPTER_STATE_FAULTED) {
2568                         printk(KERN_CRIT "%s: hardware fault\n", pHba->name);
2569                         return -1;
2570                 }
2571
2572                 if (pHba->status_block->iop_state == ADAPTER_STATE_READY ||
2573                     pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL ||
2574                     pHba->status_block->iop_state == ADAPTER_STATE_HOLD ||
2575                     pHba->status_block->iop_state == ADAPTER_STATE_FAILED) {
2576                         adpt_i2o_reset_hba(pHba);
2577                         if (adpt_i2o_status_get(pHba) < 0 || pHba->status_block->iop_state != ADAPTER_STATE_RESET) {
2578                                 printk(KERN_ERR "%s: Failed to initialize.\n", pHba->name);
2579                                 return -1;
2580                         }
2581                 }
2582         } else {
2583                 if((rcode = adpt_i2o_reset_hba(pHba)) != 0){
2584                         printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name);
2585                         return rcode;
2586                 }
2587
2588         }
2589
2590         if (adpt_i2o_init_outbound_q(pHba) < 0) {
2591                 return -1;
2592         }
2593
2594         /* In HOLD state */
2595
2596         if (adpt_i2o_hrt_get(pHba) < 0) {
2597                 return -1;
2598         }
2599
2600         return 0;
2601 }
2602
2603 /*
2604  *      Bring a controller online into OPERATIONAL state.
2605  */
2606
2607 static int adpt_i2o_online_hba(adpt_hba* pHba)
2608 {
2609         if (adpt_i2o_systab_send(pHba) < 0) {
2610                 adpt_i2o_delete_hba(pHba);
2611                 return -1;
2612         }
2613         /* In READY state */
2614
2615         if (adpt_i2o_enable_hba(pHba) < 0) {
2616                 adpt_i2o_delete_hba(pHba);
2617                 return -1;
2618         }
2619
2620         /* In OPERATIONAL state  */
2621         return 0;
2622 }
2623
2624 static s32 adpt_send_nop(adpt_hba*pHba,u32 m)
2625 {
2626         u32 __iomem *msg;
2627         ulong timeout = jiffies + 5*HZ;
2628
2629         while(m == EMPTY_QUEUE){
2630                 rmb();
2631                 m = readl(pHba->post_port);
2632                 if(m != EMPTY_QUEUE){
2633                         break;
2634                 }
2635                 if(time_after(jiffies,timeout)){
2636                         printk(KERN_ERR "%s: Timeout waiting for message frame!\n",pHba->name);
2637                         return 2;
2638                 }
2639                 schedule_timeout_uninterruptible(1);
2640         }
2641         msg = (u32 __iomem *)(pHba->msg_addr_virt + m);
2642         writel( THREE_WORD_MSG_SIZE | SGL_OFFSET_0,&msg[0]);
2643         writel( I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0,&msg[1]);
2644         writel( 0,&msg[2]);
2645         wmb();
2646
2647         writel(m, pHba->post_port);
2648         wmb();
2649         return 0;
2650 }
2651
2652 static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba)
2653 {
2654         u8 *status;
2655         u32 __iomem *msg = NULL;
2656         int i;
2657         ulong timeout = jiffies + TMOUT_INITOUTBOUND*HZ;
2658         u32* ptr;
2659         u32 outbound_frame;  // This had to be a 32 bit address
2660         u32 m;
2661
2662         do {
2663                 rmb();
2664                 m = readl(pHba->post_port);
2665                 if (m != EMPTY_QUEUE) {
2666                         break;
2667                 }
2668
2669                 if(time_after(jiffies,timeout)){
2670                         printk(KERN_WARNING"%s: Timeout waiting for message frame\n",pHba->name);
2671                         return -ETIMEDOUT;
2672                 }
2673                 schedule_timeout_uninterruptible(1);
2674         } while(m == EMPTY_QUEUE);
2675
2676         msg=(u32 __iomem *)(pHba->msg_addr_virt+m);
2677
2678         status = kmalloc(4,GFP_KERNEL|ADDR32);
2679         if (status==NULL) {
2680                 adpt_send_nop(pHba, m);
2681                 printk(KERN_WARNING"%s: IOP reset failed - no free memory.\n",
2682                         pHba->name);
2683                 return -ENOMEM;
2684         }
2685         memset(status, 0, 4);
2686
2687         writel(EIGHT_WORD_MSG_SIZE| SGL_OFFSET_6, &msg[0]);
2688         writel(I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID, &msg[1]);
2689         writel(0, &msg[2]);
2690         writel(0x0106, &msg[3]);        /* Transaction context */
2691         writel(4096, &msg[4]);          /* Host page frame size */
2692         writel((REPLY_FRAME_SIZE)<<16|0x80, &msg[5]);   /* Outbound msg frame size and Initcode */
2693         writel(0xD0000004, &msg[6]);            /* Simple SG LE, EOB */
2694         writel(virt_to_bus(status), &msg[7]);
2695
2696         writel(m, pHba->post_port);
2697         wmb();
2698
2699         // Wait for the reply status to come back
2700         do {
2701                 if (*status) {
2702                         if (*status != 0x01 /*I2O_EXEC_OUTBOUND_INIT_IN_PROGRESS*/) {
2703                                 break;
2704                         }
2705                 }
2706                 rmb();
2707                 if(time_after(jiffies,timeout)){
2708                         printk(KERN_WARNING"%s: Timeout Initializing\n",pHba->name);
2709                         return -ETIMEDOUT;
2710                 }
2711                 schedule_timeout_uninterruptible(1);
2712         } while (1);
2713
2714         // If the command was successful, fill the fifo with our reply
2715         // message packets
2716         if(*status != 0x04 /*I2O_EXEC_OUTBOUND_INIT_COMPLETE*/) {
2717                 kfree(status);
2718                 return -2;
2719         }
2720         kfree(status);
2721
2722         kfree(pHba->reply_pool);
2723
2724         pHba->reply_pool = kmalloc(pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, GFP_KERNEL|ADDR32);
2725         if(!pHba->reply_pool){
2726                 printk(KERN_ERR"%s: Could not allocate reply pool\n",pHba->name);
2727                 return -1;
2728         }
2729         memset(pHba->reply_pool, 0 , pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4);
2730
2731         ptr = pHba->reply_pool;
2732         for(i = 0; i < pHba->reply_fifo_size; i++) {
2733                 outbound_frame = (u32)virt_to_bus(ptr);
2734                 writel(outbound_frame, pHba->reply_port);
2735                 wmb();
2736                 ptr +=  REPLY_FRAME_SIZE;
2737         }
2738         adpt_i2o_status_get(pHba);
2739         return 0;
2740 }
2741
2742
2743 /*
2744  * I2O System Table.  Contains information about
2745  * all the IOPs in the system.  Used to inform IOPs
2746  * about each other's existence.
2747  *
2748  * sys_tbl_ver is the CurrentChangeIndicator that is
2749  * used by IOPs to track changes.
2750  */
2751
2752
2753
2754 static s32 adpt_i2o_status_get(adpt_hba* pHba)
2755 {
2756         ulong timeout;
2757         u32 m;
2758         u32 __iomem *msg;
2759         u8 *status_block=NULL;
2760         ulong status_block_bus;
2761
2762         if(pHba->status_block == NULL) {
2763                 pHba->status_block = (i2o_status_block*)
2764                         kmalloc(sizeof(i2o_status_block),GFP_KERNEL|ADDR32);
2765                 if(pHba->status_block == NULL) {
2766                         printk(KERN_ERR
2767                         "dpti%d: Get Status Block failed; Out of memory. \n",
2768                         pHba->unit);
2769                         return -ENOMEM;
2770                 }
2771         }
2772         memset(pHba->status_block, 0, sizeof(i2o_status_block));
2773         status_block = (u8*)(pHba->status_block);
2774         status_block_bus = virt_to_bus(pHba->status_block);
2775         timeout = jiffies+TMOUT_GETSTATUS*HZ;
2776         do {
2777                 rmb();
2778                 m = readl(pHba->post_port);
2779                 if (m != EMPTY_QUEUE) {
2780                         break;
2781                 }
2782                 if(time_after(jiffies,timeout)){
2783                         printk(KERN_ERR "%s: Timeout waiting for message !\n",
2784                                         pHba->name);
2785                         return -ETIMEDOUT;
2786                 }
2787                 schedule_timeout_uninterruptible(1);
2788         } while(m==EMPTY_QUEUE);
2789
2790
2791         msg=(u32 __iomem *)(pHba->msg_addr_virt+m);
2792
2793         writel(NINE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg[0]);
2794         writel(I2O_CMD_STATUS_GET<<24|HOST_TID<<12|ADAPTER_TID, &msg[1]);
2795         writel(1, &msg[2]);
2796         writel(0, &msg[3]);
2797         writel(0, &msg[4]);
2798         writel(0, &msg[5]);
2799         writel(((u32)status_block_bus)&0xffffffff, &msg[6]);
2800         writel(0, &msg[7]);
2801         writel(sizeof(i2o_status_block), &msg[8]); // 88 bytes
2802
2803         //post message
2804         writel(m, pHba->post_port);
2805         wmb();
2806
2807         while(status_block[87]!=0xff){
2808                 if(time_after(jiffies,timeout)){
2809                         printk(KERN_ERR"dpti%d: Get status timeout.\n",
2810                                 pHba->unit);
2811                         return -ETIMEDOUT;
2812                 }
2813                 rmb();
2814                 schedule_timeout_uninterruptible(1);
2815         }
2816
2817         // Set up our number of outbound and inbound messages
2818         pHba->post_fifo_size = pHba->status_block->max_inbound_frames;
2819         if (pHba->post_fifo_size > MAX_TO_IOP_MESSAGES) {
2820                 pHba->post_fifo_size = MAX_TO_IOP_MESSAGES;
2821         }
2822
2823         pHba->reply_fifo_size = pHba->status_block->max_outbound_frames;
2824         if (pHba->reply_fifo_size > MAX_FROM_IOP_MESSAGES) {
2825                 pHba->reply_fifo_size = MAX_FROM_IOP_MESSAGES;
2826         }
2827
2828         // Calculate the Scatter Gather list size
2829         pHba->sg_tablesize = (pHba->status_block->inbound_frame_size * 4 -40)/ sizeof(struct sg_simple_element);
2830         if (pHba->sg_tablesize > SG_LIST_ELEMENTS) {
2831                 pHba->sg_tablesize = SG_LIST_ELEMENTS;
2832         }
2833
2834
2835 #ifdef DEBUG
2836         printk("dpti%d: State = ",pHba->unit);
2837         switch(pHba->status_block->iop_state) {
2838                 case 0x01:
2839                         printk("INIT\n");
2840                         break;
2841                 case 0x02:
2842                         printk("RESET\n");
2843                         break;
2844                 case 0x04:
2845                         printk("HOLD\n");
2846                         break;
2847                 case 0x05:
2848                         printk("READY\n");
2849                         break;
2850                 case 0x08:
2851                         printk("OPERATIONAL\n");
2852                         break;
2853                 case 0x10:
2854                         printk("FAILED\n");
2855                         break;
2856                 case 0x11:
2857                         printk("FAULTED\n");
2858                         break;
2859                 default:
2860                         printk("%x (unknown!!)\n",pHba->status_block->iop_state);
2861         }
2862 #endif
2863         return 0;
2864 }
2865
2866 /*
2867  * Get the IOP's Logical Configuration Table
2868  */
2869 static int adpt_i2o_lct_get(adpt_hba* pHba)
2870 {
2871         u32 msg[8];
2872         int ret;
2873         u32 buf[16];
2874
2875         if ((pHba->lct_size == 0) || (pHba->lct == NULL)){
2876                 pHba->lct_size = pHba->status_block->expected_lct_size;
2877         }
2878         do {
2879                 if (pHba->lct == NULL) {
2880                         pHba->lct = kmalloc(pHba->lct_size, GFP_KERNEL|ADDR32);
2881                         if(pHba->lct == NULL) {
2882                                 printk(KERN_CRIT "%s: Lct Get failed. Out of memory.\n",
2883                                         pHba->name);
2884                                 return -ENOMEM;
2885                         }
2886                 }
2887                 memset(pHba->lct, 0, pHba->lct_size);
2888
2889                 msg[0] = EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6;
2890                 msg[1] = I2O_CMD_LCT_NOTIFY<<24 | HOST_TID<<12 | ADAPTER_TID;
2891                 msg[2] = 0;
2892                 msg[3] = 0;
2893                 msg[4] = 0xFFFFFFFF;    /* All devices */
2894                 msg[5] = 0x00000000;    /* Report now */
2895                 msg[6] = 0xD0000000|pHba->lct_size;
2896                 msg[7] = virt_to_bus(pHba->lct);
2897
2898                 if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 360))) {
2899                         printk(KERN_ERR "%s: LCT Get failed (status=%#10x.\n",
2900                                 pHba->name, ret);
2901                         printk(KERN_ERR"Adaptec: Error Reading Hardware.\n");
2902                         return ret;
2903                 }
2904
2905                 if ((pHba->lct->table_size << 2) > pHba->lct_size) {
2906                         pHba->lct_size = pHba->lct->table_size << 2;
2907                         kfree(pHba->lct);
2908                         pHba->lct = NULL;
2909                 }
2910         } while (pHba->lct == NULL);
2911
2912         PDEBUG("%s: Hardware resource table read.\n", pHba->name);
2913
2914
2915         // I2O_DPT_EXEC_IOP_BUFFERS_GROUP_NO;
2916         if(adpt_i2o_query_scalar(pHba, 0 , 0x8000, -1, buf, sizeof(buf))>=0) {
2917                 pHba->FwDebugBufferSize = buf[1];
2918                 pHba->FwDebugBuffer_P    = pHba->base_addr_virt + buf[0];
2919                 pHba->FwDebugFlags_P     = pHba->FwDebugBuffer_P + FW_DEBUG_FLAGS_OFFSET;
2920                 pHba->FwDebugBLEDvalue_P = pHba->FwDebugBuffer_P + FW_DEBUG_BLED_OFFSET;
2921                 pHba->FwDebugBLEDflag_P  = pHba->FwDebugBLEDvalue_P + 1;
2922                 pHba->FwDebugStrLength_P = pHba->FwDebugBuffer_P + FW_DEBUG_STR_LENGTH_OFFSET;
2923                 pHba->FwDebugBuffer_P += buf[2];
2924                 pHba->FwDebugFlags = 0;
2925         }
2926
2927         return 0;
2928 }
2929
2930 static int adpt_i2o_build_sys_table(void)
2931 {
2932         adpt_hba* pHba = NULL;
2933         int count = 0;
2934
2935         sys_tbl_len = sizeof(struct i2o_sys_tbl) +      // Header + IOPs
2936                                 (hba_count) * sizeof(struct i2o_sys_tbl_entry);
2937
2938         kfree(sys_tbl);
2939
2940         sys_tbl = kmalloc(sys_tbl_len, GFP_KERNEL|ADDR32);
2941         if(!sys_tbl) {
2942                 printk(KERN_WARNING "SysTab Set failed. Out of memory.\n");
2943                 return -ENOMEM;
2944         }
2945         memset(sys_tbl, 0, sys_tbl_len);
2946
2947         sys_tbl->num_entries = hba_count;
2948         sys_tbl->version = I2OVERSION;
2949         sys_tbl->change_ind = sys_tbl_ind++;
2950
2951         for(pHba = hba_chain; pHba; pHba = pHba->next) {
2952                 // Get updated Status Block so we have the latest information
2953                 if (adpt_i2o_status_get(pHba)) {
2954                         sys_tbl->num_entries--;
2955                         continue; // try next one
2956                 }
2957
2958                 sys_tbl->iops[count].org_id = pHba->status_block->org_id;
2959                 sys_tbl->iops[count].iop_id = pHba->unit + 2;
2960                 sys_tbl->iops[count].seg_num = 0;
2961                 sys_tbl->iops[count].i2o_version = pHba->status_block->i2o_version;
2962                 sys_tbl->iops[count].iop_state = pHba->status_block->iop_state;
2963                 sys_tbl->iops[count].msg_type = pHba->status_block->msg_type;
2964                 sys_tbl->iops[count].frame_size = pHba->status_block->inbound_frame_size;
2965                 sys_tbl->iops[count].last_changed = sys_tbl_ind - 1; // ??
2966                 sys_tbl->iops[count].iop_capabilities = pHba->status_block->iop_capabilities;
2967                 sys_tbl->iops[count].inbound_low = (u32)virt_to_bus(pHba->post_port);
2968                 sys_tbl->iops[count].inbound_high = (u32)((u64)virt_to_bus(pHba->post_port)>>32);
2969
2970                 count++;
2971         }
2972
2973 #ifdef DEBUG
2974 {
2975         u32 *table = (u32*)sys_tbl;
2976         printk(KERN_DEBUG"sys_tbl_len=%d in 32bit words\n",(sys_tbl_len >>2));
2977         for(count = 0; count < (sys_tbl_len >>2); count++) {
2978                 printk(KERN_INFO "sys_tbl[%d] = %0#10x\n",
2979                         count, table[count]);
2980         }
2981 }
2982 #endif
2983
2984         return 0;
2985 }
2986
2987
2988 /*
2989  *       Dump the information block associated with a given unit (TID)
2990  */
2991
2992 static void adpt_i2o_report_hba_unit(adpt_hba* pHba, struct i2o_device *d)
2993 {
2994         char buf[64];
2995         int unit = d->lct_data.tid;
2996
2997         printk(KERN_INFO "TID %3.3d ", unit);
2998
2999         if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 3, buf, 16)>=0)
3000         {
3001                 buf[16]=0;
3002                 printk(" Vendor: %-12.12s", buf);
3003         }
3004         if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 4, buf, 16)>=0)
3005         {
3006                 buf[16]=0;
3007                 printk(" Device: %-12.12s", buf);
3008         }
3009         if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 6, buf, 8)>=0)
3010         {
3011                 buf[8]=0;
3012                 printk(" Rev: %-12.12s\n", buf);
3013         }
3014 #ifdef DEBUG
3015          printk(KERN_INFO "\tClass: %.21s\n", adpt_i2o_get_class_name(d->lct_data.class_id));
3016          printk(KERN_INFO "\tSubclass: 0x%04X\n", d->lct_data.sub_class);
3017          printk(KERN_INFO "\tFlags: ");
3018
3019          if(d->lct_data.device_flags&(1<<0))
3020                   printk("C");       // ConfigDialog requested
3021          if(d->lct_data.device_flags&(1<<1))
3022                   printk("U");       // Multi-user capable
3023          if(!(d->lct_data.device_flags&(1<<4)))
3024                   printk("P");       // Peer service enabled!
3025          if(!(d->lct_data.device_flags&(1<<5)))
3026                   printk("M");       // Mgmt service enabled!
3027          printk("\n");
3028 #endif
3029 }
3030
3031 #ifdef DEBUG
3032 /*
3033  *      Do i2o class name lookup
3034  */
3035 static const char *adpt_i2o_get_class_name(int class)
3036 {
3037         int idx = 16;
3038         static char *i2o_class_name[] = {
3039                 "Executive",
3040                 "Device Driver Module",
3041                 "Block Device",
3042                 "Tape Device",
3043                 "LAN Interface",
3044                 "WAN Interface",
3045                 "Fibre Channel Port",
3046                 "Fibre Channel Device",
3047                 "SCSI Device",
3048                 "ATE Port",
3049                 "ATE Device",
3050                 "Floppy Controller",
3051                 "Floppy Device",
3052                 "Secondary Bus Port",
3053                 "Peer Transport Agent",
3054                 "Peer Transport",
3055                 "Unknown"
3056         };
3057
3058         switch(class&0xFFF) {
3059         case I2O_CLASS_EXECUTIVE:
3060                 idx = 0; break;
3061         case I2O_CLASS_DDM:
3062                 idx = 1; break;
3063         case I2O_CLASS_RANDOM_BLOCK_STORAGE:
3064                 idx = 2; break;
3065         case I2O_CLASS_SEQUENTIAL_STORAGE:
3066                 idx = 3; break;
3067         case I2O_CLASS_LAN:
3068                 idx = 4; break;
3069         case I2O_CLASS_WAN:
3070                 idx = 5; break;
3071         case I2O_CLASS_FIBRE_CHANNEL_PORT:
3072                 idx = 6; break;
3073         case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL:
3074                 idx = 7; break;
3075         case I2O_CLASS_SCSI_PERIPHERAL:
3076                 idx = 8; break;
3077         case I2O_CLASS_ATE_PORT:
3078                 idx = 9; break;
3079         case I2O_CLASS_ATE_PERIPHERAL:
3080                 idx = 10; break;
3081         case I2O_CLASS_FLOPPY_CONTROLLER:
3082                 idx = 11; break;
3083         case I2O_CLASS_FLOPPY_DEVICE:
3084                 idx = 12; break;
3085         case I2O_CLASS_BUS_ADAPTER_PORT:
3086                 idx = 13; break;
3087         case I2O_CLASS_PEER_TRANSPORT_AGENT:
3088                 idx = 14; break;
3089         case I2O_CLASS_PEER_TRANSPORT:
3090                 idx = 15; break;
3091         }
3092         return i2o_class_name[idx];
3093 }
3094 #endif
3095
3096
3097 static s32 adpt_i2o_hrt_get(adpt_hba* pHba)
3098 {
3099         u32 msg[6];
3100         int ret, size = sizeof(i2o_hrt);
3101
3102         do {
3103                 if (pHba->hrt == NULL) {
3104                         pHba->hrt=kmalloc(size, GFP_KERNEL|ADDR32);
3105                         if (pHba->hrt == NULL) {
3106                                 printk(KERN_CRIT "%s: Hrt Get failed; Out of memory.\n", pHba->name);
3107                                 return -ENOMEM;
3108                         }
3109                 }
3110
3111                 msg[0]= SIX_WORD_MSG_SIZE| SGL_OFFSET_4;
3112                 msg[1]= I2O_CMD_HRT_GET<<24 | HOST_TID<<12 | ADAPTER_TID;
3113                 msg[2]= 0;
3114                 msg[3]= 0;
3115                 msg[4]= (0xD0000000 | size);    /* Simple transaction */
3116                 msg[5]= virt_to_bus(pHba->hrt);   /* Dump it here */
3117
3118                 if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg),20))) {
3119                         printk(KERN_ERR "%s: Unable to get HRT (status=%#10x)\n", pHba->name, ret);
3120                         return ret;
3121                 }
3122
3123                 if (pHba->hrt->num_entries * pHba->hrt->entry_len << 2 > size) {
3124                         size = pHba->hrt->num_entries * pHba->hrt->entry_len << 2;
3125                         kfree(pHba->hrt);
3126                         pHba->hrt = NULL;
3127                 }
3128         } while(pHba->hrt == NULL);
3129         return 0;
3130 }
3131
3132 /*
3133  *       Query one scalar group value or a whole scalar group.
3134  */
3135 static int adpt_i2o_query_scalar(adpt_hba* pHba, int tid,
3136                         int group, int field, void *buf, int buflen)
3137 {
3138         u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field };
3139         u8 *resblk;
3140
3141         int size;
3142
3143         /* 8 bytes for header */
3144         resblk = kmalloc(sizeof(u8) * (8+buflen), GFP_KERNEL|ADDR32);
3145         if (resblk == NULL) {
3146                 printk(KERN_CRIT "%s: query scalar failed; Out of memory.\n", pHba->name);
3147                 return -ENOMEM;
3148         }
3149
3150         if (field == -1)                /* whole group */
3151                         opblk[4] = -1;
3152
3153         size = adpt_i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET, pHba, tid,
3154                 opblk, sizeof(opblk), resblk, sizeof(u8)*(8+buflen));
3155         if (size == -ETIME) {
3156                 printk(KERN_WARNING "%s: issue params failed; Timed out.\n", pHba->name);
3157                 return -ETIME;
3158         } else if (size == -EINTR) {
3159                 printk(KERN_WARNING "%s: issue params failed; Interrupted.\n", pHba->name);
3160                 return -EINTR;
3161         }
3162
3163         memcpy(buf, resblk+8, buflen);  /* cut off header */
3164
3165         kfree(resblk);
3166         if (size < 0)
3167                 return size;
3168
3169         return buflen;
3170 }
3171
3172
3173 /*      Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET
3174  *
3175  *      This function can be used for all UtilParamsGet/Set operations.
3176  *      The OperationBlock is given in opblk-buffer,
3177  *      and results are returned in resblk-buffer.
3178  *      Note that the minimum sized resblk is 8 bytes and contains
3179  *      ResultCount, ErrorInfoSize, BlockStatus and BlockSize.
3180  */
3181 static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid,
3182                   void *opblk, int oplen, void *resblk, int reslen)
3183 {
3184         u32 msg[9];
3185         u32 *res = (u32 *)resblk;
3186         int wait_status;
3187
3188         msg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_5;
3189         msg[1] = cmd << 24 | HOST_TID << 12 | tid;
3190         msg[2] = 0;
3191         msg[3] = 0;
3192         msg[4] = 0;
3193         msg[5] = 0x54000000 | oplen;    /* OperationBlock */
3194         msg[6] = virt_to_bus(opblk);
3195         msg[7] = 0xD0000000 | reslen;   /* ResultBlock */
3196         msg[8] = virt_to_bus(resblk);
3197
3198         if ((wait_status = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 20))) {
3199                 printk("adpt_i2o_issue_params: post_wait failed (%p)\n", resblk);
3200                 return wait_status;     /* -DetailedStatus */
3201         }
3202
3203         if (res[1]&0x00FF0000) {        /* BlockStatus != SUCCESS */
3204                 printk(KERN_WARNING "%s: %s - Error:\n  ErrorInfoSize = 0x%02x, "
3205                         "BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
3206                         pHba->name,
3207                         (cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET"
3208                                                          : "PARAMS_GET",
3209                         res[1]>>24, (res[1]>>16)&0xFF, res[1]&0xFFFF);
3210                 return -((res[1] >> 16) & 0xFF); /* -BlockStatus */
3211         }
3212
3213          return 4 + ((res[1] & 0x0000FFFF) << 2); /* bytes used in resblk */
3214 }
3215
3216
3217 static s32 adpt_i2o_quiesce_hba(adpt_hba* pHba)
3218 {
3219         u32 msg[4];
3220         int ret;
3221
3222         adpt_i2o_status_get(pHba);
3223
3224         /* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */
3225
3226         if((pHba->status_block->iop_state != ADAPTER_STATE_READY) &&
3227            (pHba->status_block->iop_state != ADAPTER_STATE_OPERATIONAL)){
3228                 return 0;
3229         }
3230
3231         msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
3232         msg[1] = I2O_CMD_SYS_QUIESCE<<24|HOST_TID<<12|ADAPTER_TID;
3233         msg[2] = 0;
3234         msg[3] = 0;
3235
3236         if((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) {
3237                 printk(KERN_INFO"dpti%d: Unable to quiesce (status=%#x).\n",
3238                                 pHba->unit, -ret);
3239         } else {
3240                 printk(KERN_INFO"dpti%d: Quiesced.\n",pHba->unit);
3241         }
3242
3243         adpt_i2o_status_get(pHba);
3244         return ret;
3245 }
3246
3247
3248 /*
3249  * Enable IOP. Allows the IOP to resume external operations.
3250  */
3251 static int adpt_i2o_enable_hba(adpt_hba* pHba)
3252 {
3253         u32 msg[4];
3254         int ret;
3255
3256         adpt_i2o_status_get(pHba);
3257         if(!pHba->status_block){
3258                 return -ENOMEM;
3259         }
3260         /* Enable only allowed on READY state */
3261         if(pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL)
3262                 return 0;
3263
3264         if(pHba->status_block->iop_state != ADAPTER_STATE_READY)
3265                 return -EINVAL;
3266
3267         msg[0]=FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
3268         msg[1]=I2O_CMD_SYS_ENABLE<<24|HOST_TID<<12|ADAPTER_TID;
3269         msg[2]= 0;
3270         msg[3]= 0;
3271
3272         if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) {
3273                 printk(KERN_WARNING"%s: Could not enable (status=%#10x).\n",
3274                         pHba->name, ret);
3275         } else {
3276                 PDEBUG("%s: Enabled.\n", pHba->name);
3277         }
3278
3279         adpt_i2o_status_get(pHba);
3280         return ret;
3281 }
3282
3283
3284 static int adpt_i2o_systab_send(adpt_hba* pHba)
3285 {
3286          u32 msg[12];
3287          int ret;
3288
3289         msg[0] = I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6;
3290         msg[1] = I2O_CMD_SYS_TAB_SET<<24 | HOST_TID<<12 | ADAPTER_TID;
3291         msg[2] = 0;
3292         msg[3] = 0;
3293         msg[4] = (0<<16) | ((pHba->unit+2) << 12); /* Host 0 IOP ID (unit + 2) */
3294         msg[5] = 0;                                /* Segment 0 */
3295
3296         /*
3297          * Provide three SGL-elements:
3298          * System table (SysTab), Private memory space declaration and
3299          * Private i/o space declaration
3300          */
3301         msg[6] = 0x54000000 | sys_tbl_len;
3302         msg[7] = virt_to_phys(sys_tbl);
3303         msg[8] = 0x54000000 | 0;
3304         msg[9] = 0;
3305         msg[10] = 0xD4000000 | 0;
3306         msg[11] = 0;
3307
3308         if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 120))) {
3309                 printk(KERN_INFO "%s: Unable to set SysTab (status=%#10x).\n",
3310                         pHba->name, ret);
3311         }
3312 #ifdef DEBUG
3313         else {
3314                 PINFO("%s: SysTab set.\n", pHba->name);
3315         }
3316 #endif
3317
3318         return ret;
3319  }
3320
3321
3322 /*============================================================================
3323  *
3324  *============================================================================
3325  */
3326
3327
3328 #ifdef UARTDELAY
3329
3330 static static void adpt_delay(int millisec)
3331 {
3332         int i;
3333         for (i = 0; i < millisec; i++) {
3334                 udelay(1000);   /* delay for one millisecond */
3335         }
3336 }
3337
3338 #endif
3339
3340 static struct scsi_host_template driver_template = {
3341         .name                   = "dpt_i2o",
3342         .proc_name              = "dpt_i2o",
3343         .proc_info              = adpt_proc_info,
3344         .detect                 = adpt_detect,
3345         .release                = adpt_release,
3346         .info                   = adpt_info,
3347         .queuecommand           = adpt_queue,
3348         .eh_abort_handler       = adpt_abort,
3349         .eh_device_reset_handler = adpt_device_reset,
3350         .eh_bus_reset_handler   = adpt_bus_reset,
3351         .eh_host_reset_handler  = adpt_reset,
3352         .bios_param             = adpt_bios_param,
3353         .slave_configure        = adpt_slave_configure,
3354         .can_queue              = MAX_TO_IOP_MESSAGES,
3355         .this_id                = 7,
3356         .cmd_per_lun            = 1,
3357         .use_clustering         = ENABLE_CLUSTERING,
3358 };
3359 #include "scsi_module.c"
3360 MODULE_LICENSE("GPL");