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