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

   1 /***************************************************************************
   2                           dpti.c  -  description
   3                              -------------------
   4     begin                : Thu Sep 7 2000
   5     copyright            : (C) 2000 by Adaptec
   6
   7                            July 30, 2001 First version being submitted
   8                            for inclusion in the kernel.  V2.4
   9
  10     See Documentation/scsi/dpti.txt for history, notes, license info
  11     and credits
  12  ***************************************************************************/
  13
  14 /***************************************************************************
  15  *                                                                         *
  16  *   This program is free software; you can redistribute it and/or modify  *
  17  *   it under the terms of the GNU General Public License as published by  *
  18  *   the Free Software Foundation; either version 2 of the License, or     *
  19  *   (at your option) any later version.                                   *
  20  *                                                                         *
  21  ***************************************************************************/
  22 /***************************************************************************
  23  * Sat Dec 20 2003 Go Taniguchi <go@turbolinux.co.jp>
  24  - Support 2.6 kernel and DMA-mapping
  25  - ioctl fix for raid tools
  26  - use schedule_timeout in long long loop
  27  **************************************************************************/
  28
  29 /*#define DEBUG 1 */
  30 /*#define UARTDELAY 1 */
  31
  32 /* On the real kernel ADDR32 should always be zero for 2.4. GFP_HIGH allocates
  33    high pages. Keep the macro around because of the broken unmerged ia64 tree */
  34
  35 #define ADDR32 (0)
  36
  37 #include <linux/module.h>
  38
  39 MODULE_AUTHOR("Deanna Bonds, with _lots_ of help from Mark Salyzyn");
  40 MODULE_DESCRIPTION("Adaptec I2O RAID Driver");
  41
  42 ////////////////////////////////////////////////////////////////
  43
  44 #include <linux/ioctl.h>        /* For SCSI-Passthrough */
  45 #include <asm/uaccess.h>
  46
  47 #include <linux/stat.h>
  48 #include <linux/slab.h>         /* for kmalloc() */
  49 #include <linux/pci.h>          /* for PCI support */
  50 #include <linux/proc_fs.h>
  51 #include <linux/blkdev.h>
  52 #include <linux/delay.h>        /* for udelay */
  53 #include <linux/interrupt.h>
  54 #include <linux/kernel.h>       /* for printk */
  55 #include <linux/sched.h>
  56 #include <linux/reboot.h>
  57 #include <linux/spinlock.h>
  58 #include <linux/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_32BIT_MASK))
 910                 return -EINVAL;
 911
 912         base_addr0_phys = pci_resource_start(pDev,0);
 913         hba_map0_area_size = pci_resource_len(pDev,0);
 914
 915         // Check if standard PCI card or single BAR Raptor
 916         if(pDev->device == PCI_DPT_DEVICE_ID){
 917                 if(pDev->subsystem_device >=0xc032 && pDev->subsystem_device <= 0xc03b){
 918                         // Raptor card with this device id needs 4M
 919                         hba_map0_area_size = 0x400000;
 920                 } else { // Not Raptor - it is a PCI card
 921                         if(hba_map0_area_size > 0x100000 ){
 922                                 hba_map0_area_size = 0x100000;
 923                         }
 924                 }
 925         } else {// Raptor split BAR config
 926                 // Use BAR1 in this configuration
 927                 base_addr1_phys = pci_resource_start(pDev,1);
 928                 hba_map1_area_size = pci_resource_len(pDev,1);
 929                 raptorFlag = TRUE;
 930         }
 931
 932         base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size);
 933         if (!base_addr_virt) {
 934                 pci_release_regions(pDev);
 935                 PERROR("dpti: adpt_config_hba: io remap failed\n");
 936                 return -EINVAL;
 937         }
 938
 939         if(raptorFlag == TRUE) {
 940                 msg_addr_virt = ioremap(base_addr1_phys, hba_map1_area_size );
 941                 if (!msg_addr_virt) {
 942                         PERROR("dpti: adpt_config_hba: io remap failed on BAR1\n");
 943                         iounmap(base_addr_virt);
 944                         pci_release_regions(pDev);
 945                         return -EINVAL;
 946                 }
 947         } else {
 948                 msg_addr_virt = base_addr_virt;
 949         }
 950
 951         // Allocate and zero the data structure
 952         pHba = kzalloc(sizeof(adpt_hba), GFP_KERNEL);
 953         if (!pHba) {
 954                 if (msg_addr_virt != base_addr_virt)
 955                         iounmap(msg_addr_virt);
 956                 iounmap(base_addr_virt);
 957                 pci_release_regions(pDev);
 958                 return -ENOMEM;
 959         }
 960
 961         mutex_lock(&adpt_configuration_lock);
 962
 963         if(hba_chain != NULL){
 964                 for(p = hba_chain; p->next; p = p->next);
 965                 p->next = pHba;
 966         } else {
 967                 hba_chain = pHba;
 968         }
 969         pHba->next = NULL;
 970         pHba->unit = hba_count;
 971         sprintf(pHba->name, "dpti%d", hba_count);
 972         hba_count++;
 973
 974         mutex_unlock(&adpt_configuration_lock);
 975
 976         pHba->pDev = pDev;
 977         pHba->base_addr_phys = base_addr0_phys;
 978
 979         // Set up the Virtual Base Address of the I2O Device
 980         pHba->base_addr_virt = base_addr_virt;
 981         pHba->msg_addr_virt = msg_addr_virt;
 982         pHba->irq_mask = base_addr_virt+0x30;
 983         pHba->post_port = base_addr_virt+0x40;
 984         pHba->reply_port = base_addr_virt+0x44;
 985
 986         pHba->hrt = NULL;
 987         pHba->lct = NULL;
 988         pHba->lct_size = 0;
 989         pHba->status_block = NULL;
 990         pHba->post_count = 0;
 991         pHba->state = DPTI_STATE_RESET;
 992         pHba->pDev = pDev;
 993         pHba->devices = NULL;
 994
 995         // Initializing the spinlocks
 996         spin_lock_init(&pHba->state_lock);
 997         spin_lock_init(&adpt_post_wait_lock);
 998
 999         if(raptorFlag == 0){
1000                 printk(KERN_INFO"Adaptec I2O RAID controller %d at %p size=%x irq=%d\n",
1001                         hba_count-1, base_addr_virt, hba_map0_area_size, pDev->irq);
1002         } else {
1003                 printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%d\n",hba_count-1, pDev->irq);
1004                 printk(KERN_INFO"     BAR0 %p - size= %x\n",base_addr_virt,hba_map0_area_size);
1005                 printk(KERN_INFO"     BAR1 %p - size= %x\n",msg_addr_virt,hba_map1_area_size);
1006         }
1007
1008         if (request_irq (pDev->irq, adpt_isr, IRQF_SHARED, pHba->name, pHba)) {
1009                 printk(KERN_ERR"%s: Couldn't register IRQ %d\n", pHba->name, pDev->irq);
1010                 adpt_i2o_delete_hba(pHba);
1011                 return -EINVAL;
1012         }
1013
1014         return 0;
1015 }
1016
1017
1018 static void adpt_i2o_delete_hba(adpt_hba* pHba)
1019 {
1020         adpt_hba* p1;
1021         adpt_hba* p2;
1022         struct i2o_device* d;
1023         struct i2o_device* next;
1024         int i;
1025         int j;
1026         struct adpt_device* pDev;
1027         struct adpt_device* pNext;
1028
1029
1030         mutex_lock(&adpt_configuration_lock);
1031         // scsi_unregister calls our adpt_release which
1032         // does a quiese
1033         if(pHba->host){
1034                 free_irq(pHba->host->irq, pHba);
1035         }
1036         p2 = NULL;
1037         for( p1 = hba_chain; p1; p2 = p1,p1=p1->next){
1038                 if(p1 == pHba) {
1039                         if(p2) {
1040                                 p2->next = p1->next;
1041                         } else {
1042                                 hba_chain = p1->next;
1043                         }
1044                         break;
1045                 }
1046         }
1047
1048         hba_count--;
1049         mutex_unlock(&adpt_configuration_lock);
1050
1051         iounmap(pHba->base_addr_virt);
1052         pci_release_regions(pHba->pDev);
1053         if(pHba->msg_addr_virt != pHba->base_addr_virt){
1054                 iounmap(pHba->msg_addr_virt);
1055         }
1056         kfree(pHba->hrt);
1057         kfree(pHba->lct);
1058         kfree(pHba->status_block);
1059         kfree(pHba->reply_pool);
1060
1061         for(d = pHba->devices; d ; d = next){
1062                 next = d->next;
1063                 kfree(d);
1064         }
1065         for(i = 0 ; i < pHba->top_scsi_channel ; i++){
1066                 for(j = 0; j < MAX_ID; j++){
1067                         if(pHba->channel[i].device[j] != NULL){
1068                                 for(pDev = pHba->channel[i].device[j]; pDev; pDev = pNext){
1069                                         pNext = pDev->next_lun;
1070                                         kfree(pDev);
1071                                 }
1072                         }
1073                 }
1074         }
1075         pci_dev_put(pHba->pDev);
1076         kfree(pHba);
1077
1078         if(hba_count <= 0){
1079                 unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER);
1080         }
1081 }
1082
1083
1084 static int adpt_init(void)
1085 {
1086         printk("Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "\n");
1087 #ifdef REBOOT_NOTIFIER
1088         register_reboot_notifier(&adpt_reboot_notifier);
1089 #endif
1090
1091         return 0;
1092 }
1093
1094
1095 static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u32 lun)
1096 {
1097         struct adpt_device* d;
1098
1099         if(chan < 0 || chan >= MAX_CHANNEL)
1100                 return NULL;
1101
1102         if( pHba->channel[chan].device == NULL){
1103                 printk(KERN_DEBUG"Adaptec I2O RAID: Trying to find device before they are allocated\n");
1104                 return NULL;
1105         }
1106
1107         d = pHba->channel[chan].device[id];
1108         if(!d || d->tid == 0) {
1109                 return NULL;
1110         }
1111
1112         /* If it is the only lun at that address then this should match*/
1113         if(d->scsi_lun == lun){
1114                 return d;
1115         }
1116
1117         /* else we need to look through all the luns */
1118         for(d=d->next_lun ; d ; d = d->next_lun){
1119                 if(d->scsi_lun == lun){
1120                         return d;
1121                 }
1122         }
1123         return NULL;
1124 }
1125
1126
1127 static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout)
1128 {
1129         // I used my own version of the WAIT_QUEUE_HEAD
1130         // to handle some version differences
1131         // When embedded in the kernel this could go back to the vanilla one
1132         ADPT_DECLARE_WAIT_QUEUE_HEAD(adpt_wq_i2o_post);
1133         int status = 0;
1134         ulong flags = 0;
1135         struct adpt_i2o_post_wait_data *p1, *p2;
1136         struct adpt_i2o_post_wait_data *wait_data =
1137                 kmalloc(sizeof(struct adpt_i2o_post_wait_data),GFP_KERNEL);
1138         DECLARE_WAITQUEUE(wait, current);
1139
1140         if (!wait_data)
1141                 return -ENOMEM;
1142
1143         /*
1144          * The spin locking is needed to keep anyone from playing
1145          * with the queue pointers and id while we do the same
1146          */
1147         spin_lock_irqsave(&adpt_post_wait_lock, flags);
1148        // TODO we need a MORE unique way of getting ids
1149        // to support async LCT get
1150         wait_data->next = adpt_post_wait_queue;
1151         adpt_post_wait_queue = wait_data;
1152         adpt_post_wait_id++;
1153         adpt_post_wait_id &= 0x7fff;
1154         wait_data->id =  adpt_post_wait_id;
1155         spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
1156
1157         wait_data->wq = &adpt_wq_i2o_post;
1158         wait_data->status = -ETIMEDOUT;
1159
1160         add_wait_queue(&adpt_wq_i2o_post, &wait);
1161
1162         msg[2] |= 0x80000000 | ((u32)wait_data->id);
1163         timeout *= HZ;
1164         if((status = adpt_i2o_post_this(pHba, msg, len)) == 0){
1165                 set_current_state(TASK_INTERRUPTIBLE);
1166                 if(pHba->host)
1167                         spin_unlock_irq(pHba->host->host_lock);
1168                 if (!timeout)
1169                         schedule();
1170                 else{
1171                         timeout = schedule_timeout(timeout);
1172                         if (timeout == 0) {
1173                                 // I/O issued, but cannot get result in
1174                                 // specified time. Freeing resorces is
1175                                 // dangerous.
1176                                 status = -ETIME;
1177                         }
1178                 }
1179                 if(pHba->host)
1180                         spin_lock_irq(pHba->host->host_lock);
1181         }
1182         remove_wait_queue(&adpt_wq_i2o_post, &wait);
1183
1184         if(status == -ETIMEDOUT){
1185                 printk(KERN_INFO"dpti%d: POST WAIT TIMEOUT\n",pHba->unit);
1186                 // We will have to free the wait_data memory during shutdown
1187                 return status;
1188         }
1189
1190         /* Remove the entry from the queue.  */
1191         p2 = NULL;
1192         spin_lock_irqsave(&adpt_post_wait_lock, flags);
1193         for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p1->next) {
1194                 if(p1 == wait_data) {
1195                         if(p1->status == I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION ) {
1196                                 status = -EOPNOTSUPP;
1197                         }
1198                         if(p2) {
1199                                 p2->next = p1->next;
1200                         } else {
1201                                 adpt_post_wait_queue = p1->next;
1202                         }
1203                         break;
1204                 }
1205         }
1206         spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
1207
1208         kfree(wait_data);
1209
1210         return status;
1211 }
1212
1213
1214 static s32 adpt_i2o_post_this(adpt_hba* pHba, u32* data, int len)
1215 {
1216
1217         u32 m = EMPTY_QUEUE;
1218         u32 __iomem *msg;
1219         ulong timeout = jiffies + 30*HZ;
1220         do {
1221                 rmb();
1222                 m = readl(pHba->post_port);
1223                 if (m != EMPTY_QUEUE) {
1224                         break;
1225                 }
1226                 if(time_after(jiffies,timeout)){
1227                         printk(KERN_WARNING"dpti%d: Timeout waiting for message frame!\n", pHba->unit);
1228                         return -ETIMEDOUT;
1229                 }
1230                 schedule_timeout_uninterruptible(1);
1231         } while(m == EMPTY_QUEUE);
1232
1233         msg = pHba->msg_addr_virt + m;
1234         memcpy_toio(msg, data, len);
1235         wmb();
1236
1237         //post message
1238         writel(m, pHba->post_port);
1239         wmb();
1240
1241         return 0;
1242 }
1243
1244
1245 static void adpt_i2o_post_wait_complete(u32 context, int status)
1246 {
1247         struct adpt_i2o_post_wait_data *p1 = NULL;
1248         /*
1249          * We need to search through the adpt_post_wait
1250          * queue to see if the given message is still
1251          * outstanding.  If not, it means that the IOP
1252          * took longer to respond to the message than we
1253          * had allowed and timer has already expired.
1254          * Not much we can do about that except log
1255          * it for debug purposes, increase timeout, and recompile
1256          *
1257          * Lock needed to keep anyone from moving queue pointers
1258          * around while we're looking through them.
1259          */
1260
1261         context &= 0x7fff;
1262
1263         spin_lock(&adpt_post_wait_lock);
1264         for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
1265                 if(p1->id == context) {
1266                         p1->status = status;
1267                         spin_unlock(&adpt_post_wait_lock);
1268                         wake_up_interruptible(p1->wq);
1269                         return;
1270                 }
1271         }
1272         spin_unlock(&adpt_post_wait_lock);
1273         // If this happens we lose commands that probably really completed
1274         printk(KERN_DEBUG"dpti: Could Not find task %d in wait queue\n",context);
1275         printk(KERN_DEBUG"      Tasks in wait queue:\n");
1276         for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
1277                 printk(KERN_DEBUG"           %d\n",p1->id);
1278         }
1279         return;
1280 }
1281
1282 static s32 adpt_i2o_reset_hba(adpt_hba* pHba)
1283 {
1284         u32 msg[8];
1285         u8* status;
1286         u32 m = EMPTY_QUEUE ;
1287         ulong timeout = jiffies + (TMOUT_IOPRESET*HZ);
1288
1289         if(pHba->initialized  == FALSE) {       // First time reset should be quick
1290                 timeout = jiffies + (25*HZ);
1291         } else {
1292                 adpt_i2o_quiesce_hba(pHba);
1293         }
1294
1295         do {
1296                 rmb();
1297                 m = readl(pHba->post_port);
1298                 if (m != EMPTY_QUEUE) {
1299                         break;
1300                 }
1301                 if(time_after(jiffies,timeout)){
1302                         printk(KERN_WARNING"Timeout waiting for message!\n");
1303                         return -ETIMEDOUT;
1304                 }
1305                 schedule_timeout_uninterruptible(1);
1306         } while (m == EMPTY_QUEUE);
1307
1308         status = kzalloc(4, GFP_KERNEL|ADDR32);
1309         if(status == NULL) {
1310                 adpt_send_nop(pHba, m);
1311                 printk(KERN_ERR"IOP reset failed - no free memory.\n");
1312                 return -ENOMEM;
1313         }
1314
1315         msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0;
1316         msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID;
1317         msg[2]=0;
1318         msg[3]=0;
1319         msg[4]=0;
1320         msg[5]=0;
1321         msg[6]=virt_to_bus(status);
1322         msg[7]=0;
1323
1324         memcpy_toio(pHba->msg_addr_virt+m, msg, sizeof(msg));
1325         wmb();
1326         writel(m, pHba->post_port);
1327         wmb();
1328
1329         while(*status == 0){
1330                 if(time_after(jiffies,timeout)){
1331                         printk(KERN_WARNING"%s: IOP Reset Timeout\n",pHba->name);
1332                         kfree(status);
1333                         return -ETIMEDOUT;
1334                 }
1335                 rmb();
1336                 schedule_timeout_uninterruptible(1);
1337         }
1338
1339         if(*status == 0x01 /*I2O_EXEC_IOP_RESET_IN_PROGRESS*/) {
1340                 PDEBUG("%s: Reset in progress...\n", pHba->name);
1341                 // Here we wait for message frame to become available
1342                 // indicated that reset has finished
1343                 do {
1344                         rmb();
1345                         m = readl(pHba->post_port);
1346                         if (m != EMPTY_QUEUE) {
1347                                 break;
1348                         }
1349                         if(time_after(jiffies,timeout)){
1350                                 printk(KERN_ERR "%s:Timeout waiting for IOP Reset.\n",pHba->name);
1351                                 return -ETIMEDOUT;
1352                         }
1353                         schedule_timeout_uninterruptible(1);
1354                 } while (m == EMPTY_QUEUE);
1355                 // Flush the offset
1356                 adpt_send_nop(pHba, m);
1357         }
1358         adpt_i2o_status_get(pHba);
1359         if(*status == 0x02 ||
1360                         pHba->status_block->iop_state != ADAPTER_STATE_RESET) {
1361                 printk(KERN_WARNING"%s: Reset reject, trying to clear\n",
1362                                 pHba->name);
1363         } else {
1364                 PDEBUG("%s: Reset completed.\n", pHba->name);
1365         }
1366
1367         kfree(status);
1368 #ifdef UARTDELAY
1369         // This delay is to allow someone attached to the card through the debug UART to
1370         // set up the dump levels that they want before the rest of the initialization sequence
1371         adpt_delay(20000);
1372 #endif
1373         return 0;
1374 }
1375
1376
1377 static int adpt_i2o_parse_lct(adpt_hba* pHba)
1378 {
1379         int i;
1380         int max;
1381         int tid;
1382         struct i2o_device *d;
1383         i2o_lct *lct = pHba->lct;
1384         u8 bus_no = 0;
1385         s16 scsi_id;
1386         s16 scsi_lun;
1387         u32 buf[10]; // larger than 7, or 8 ...
1388         struct adpt_device* pDev;
1389
1390         if (lct == NULL) {
1391                 printk(KERN_ERR "%s: LCT is empty???\n",pHba->name);
1392                 return -1;
1393         }
1394
1395         max = lct->table_size;
1396         max -= 3;
1397         max /= 9;
1398
1399         for(i=0;i<max;i++) {
1400                 if( lct->lct_entry[i].user_tid != 0xfff){
1401                         /*
1402                          * If we have hidden devices, we need to inform the upper layers about
1403                          * the possible maximum id reference to handle device access when
1404                          * an array is disassembled. This code has no other purpose but to
1405                          * allow us future access to devices that are currently hidden
1406                          * behind arrays, hotspares or have not been configured (JBOD mode).
1407                          */
1408                         if( lct->lct_entry[i].class_id != I2O_CLASS_RANDOM_BLOCK_STORAGE &&
1409                             lct->lct_entry[i].class_id != I2O_CLASS_SCSI_PERIPHERAL &&
1410                             lct->lct_entry[i].class_id != I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
1411                                 continue;
1412                         }
1413                         tid = lct->lct_entry[i].tid;
1414                         // I2O_DPT_DEVICE_INFO_GROUP_NO;
1415                         if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) {
1416                                 continue;
1417                         }
1418                         bus_no = buf[0]>>16;
1419                         scsi_id = buf[1];
1420                         scsi_lun = (buf[2]>>8 )&0xff;
1421                         if(bus_no >= MAX_CHANNEL) {     // Something wrong skip it
1422                                 printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no);
1423                                 continue;
1424                         }
1425                         if (scsi_id >= MAX_ID){
1426                                 printk(KERN_WARNING"%s: SCSI ID %d out of range \n", pHba->name, bus_no);
1427                                 continue;
1428                         }
1429                         if(bus_no > pHba->top_scsi_channel){
1430                                 pHba->top_scsi_channel = bus_no;
1431                         }
1432                         if(scsi_id > pHba->top_scsi_id){
1433                                 pHba->top_scsi_id = scsi_id;
1434                         }
1435                         if(scsi_lun > pHba->top_scsi_lun){
1436                                 pHba->top_scsi_lun = scsi_lun;
1437                         }
1438                         continue;
1439                 }
1440                 d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
1441                 if(d==NULL)
1442                 {
1443                         printk(KERN_CRIT"%s: Out of memory for I2O device data.\n",pHba->name);
1444                         return -ENOMEM;
1445                 }
1446
1447                 d->controller = pHba;
1448                 d->next = NULL;
1449
1450                 memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
1451
1452                 d->flags = 0;
1453                 tid = d->lct_data.tid;
1454                 adpt_i2o_report_hba_unit(pHba, d);
1455                 adpt_i2o_install_device(pHba, d);
1456         }
1457         bus_no = 0;
1458         for(d = pHba->devices; d ; d = d->next) {
1459                 if(d->lct_data.class_id  == I2O_CLASS_BUS_ADAPTER_PORT ||
1460                    d->lct_data.class_id  == I2O_CLASS_FIBRE_CHANNEL_PORT){
1461                         tid = d->lct_data.tid;
1462                         // TODO get the bus_no from hrt-but for now they are in order
1463                         //bus_no =
1464                         if(bus_no > pHba->top_scsi_channel){
1465                                 pHba->top_scsi_channel = bus_no;
1466                         }
1467                         pHba->channel[bus_no].type = d->lct_data.class_id;
1468                         pHba->channel[bus_no].tid = tid;
1469                         if(adpt_i2o_query_scalar(pHba, tid, 0x0200, -1, buf, 28)>=0)
1470                         {
1471                                 pHba->channel[bus_no].scsi_id = buf[1];
1472                                 PDEBUG("Bus %d - SCSI ID %d.\n", bus_no, buf[1]);
1473                         }
1474                         // TODO remove - this is just until we get from hrt
1475                         bus_no++;
1476                         if(bus_no >= MAX_CHANNEL) {     // Something wrong skip it
1477                                 printk(KERN_WARNING"%s: Channel number %d out of range - LCT\n", pHba->name, bus_no);
1478                                 break;
1479                         }
1480                 }
1481         }
1482
1483         // Setup adpt_device table
1484         for(d = pHba->devices; d ; d = d->next) {
1485                 if(d->lct_data.class_id  == I2O_CLASS_RANDOM_BLOCK_STORAGE ||
1486                    d->lct_data.class_id  == I2O_CLASS_SCSI_PERIPHERAL ||
1487                    d->lct_data.class_id  == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
1488
1489                         tid = d->lct_data.tid;
1490                         scsi_id = -1;
1491                         // I2O_DPT_DEVICE_INFO_GROUP_NO;
1492                         if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)>=0) {
1493                                 bus_no = buf[0]>>16;
1494                                 scsi_id = buf[1];
1495                                 scsi_lun = (buf[2]>>8 )&0xff;
1496                                 if(bus_no >= MAX_CHANNEL) {     // Something wrong skip it
1497                                         continue;
1498                                 }
1499                                 if (scsi_id >= MAX_ID) {
1500                                         continue;
1501                                 }
1502                                 if( pHba->channel[bus_no].device[scsi_id] == NULL){
1503                                         pDev =  kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
1504                                         if(pDev == NULL) {
1505                                                 return -ENOMEM;
1506                                         }
1507                                         pHba->channel[bus_no].device[scsi_id] = pDev;
1508                                 } else {
1509                                         for( pDev = pHba->channel[bus_no].device[scsi_id];
1510                                                         pDev->next_lun; pDev = pDev->next_lun){
1511                                         }
1512                                         pDev->next_lun = kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
1513                                         if(pDev->next_lun == NULL) {
1514                                                 return -ENOMEM;
1515                                         }
1516                                         pDev = pDev->next_lun;
1517                                 }
1518                                 pDev->tid = tid;
1519                                 pDev->scsi_channel = bus_no;
1520                                 pDev->scsi_id = scsi_id;
1521                                 pDev->scsi_lun = scsi_lun;
1522                                 pDev->pI2o_dev = d;
1523                                 d->owner = pDev;
1524                                 pDev->type = (buf[0])&0xff;
1525                                 pDev->flags = (buf[0]>>8)&0xff;
1526                                 if(scsi_id > pHba->top_scsi_id){
1527                                         pHba->top_scsi_id = scsi_id;
1528                                 }
1529                                 if(scsi_lun > pHba->top_scsi_lun){
1530                                         pHba->top_scsi_lun = scsi_lun;
1531                                 }
1532                         }
1533                         if(scsi_id == -1){
1534                                 printk(KERN_WARNING"Could not find SCSI ID for %s\n",
1535                                                 d->lct_data.identity_tag);
1536                         }
1537                 }
1538         }
1539         return 0;
1540 }
1541
1542
1543 /*
1544  *      Each I2O controller has a chain of devices on it - these match
1545  *      the useful parts of the LCT of the board.
1546  */
1547
1548 static int adpt_i2o_install_device(adpt_hba* pHba, struct i2o_device *d)
1549 {
1550         mutex_lock(&adpt_configuration_lock);
1551         d->controller=pHba;
1552         d->owner=NULL;
1553         d->next=pHba->devices;
1554         d->prev=NULL;
1555         if (pHba->devices != NULL){
1556                 pHba->devices->prev=d;
1557         }
1558         pHba->devices=d;
1559         *d->dev_name = 0;
1560
1561         mutex_unlock(&adpt_configuration_lock);
1562         return 0;
1563 }
1564
1565 static int adpt_open(struct inode *inode, struct file *file)
1566 {
1567         int minor;
1568         adpt_hba* pHba;
1569
1570         //TODO check for root access
1571         //
1572         minor = iminor(inode);
1573         if (minor >= hba_count) {
1574                 return -ENXIO;
1575         }
1576         mutex_lock(&adpt_configuration_lock);
1577         for (pHba = hba_chain; pHba; pHba = pHba->next) {
1578                 if (pHba->unit == minor) {
1579                         break;  /* found adapter */
1580                 }
1581         }
1582         if (pHba == NULL) {
1583                 mutex_unlock(&adpt_configuration_lock);
1584                 return -ENXIO;
1585         }
1586
1587 //      if(pHba->in_use){
1588         //      mutex_unlock(&adpt_configuration_lock);
1589 //              return -EBUSY;
1590 //      }
1591
1592         pHba->in_use = 1;
1593         mutex_unlock(&adpt_configuration_lock);
1594
1595         return 0;
1596 }
1597
1598 static int adpt_close(struct inode *inode, struct file *file)
1599 {
1600         int minor;
1601         adpt_hba* pHba;
1602
1603         minor = iminor(inode);
1604         if (minor >= hba_count) {
1605                 return -ENXIO;
1606         }
1607         mutex_lock(&adpt_configuration_lock);
1608         for (pHba = hba_chain; pHba; pHba = pHba->next) {
1609                 if (pHba->unit == minor) {
1610                         break;  /* found adapter */
1611                 }
1612         }
1613         mutex_unlock(&adpt_configuration_lock);
1614         if (pHba == NULL) {
1615                 return -ENXIO;
1616         }
1617
1618         pHba->in_use = 0;
1619
1620         return 0;
1621 }
1622
1623
1624 static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
1625 {
1626         u32 msg[MAX_MESSAGE_SIZE];
1627         u32* reply = NULL;
1628         u32 size = 0;
1629         u32 reply_size = 0;
1630         u32 __user *user_msg = arg;
1631         u32 __user * user_reply = NULL;
1632         void *sg_list[pHba->sg_tablesize];
1633         u32 sg_offset = 0;
1634         u32 sg_count = 0;
1635         int sg_index = 0;
1636         u32 i = 0;
1637         u32 rcode = 0;
1638         void *p = NULL;
1639         ulong flags = 0;
1640
1641         memset(&msg, 0, MAX_MESSAGE_SIZE*4);
1642         // get user msg size in u32s
1643         if(get_user(size, &user_msg[0])){
1644                 return -EFAULT;
1645         }
1646         size = size>>16;
1647
1648         user_reply = &user_msg[size];
1649         if(size > MAX_MESSAGE_SIZE){
1650                 return -EFAULT;
1651         }
1652         size *= 4; // Convert to bytes
1653
1654         /* Copy in the user's I2O command */
1655         if(copy_from_user(msg, user_msg, size)) {
1656                 return -EFAULT;
1657         }
1658         get_user(reply_size, &user_reply[0]);
1659         reply_size = reply_size>>16;
1660         if(reply_size > REPLY_FRAME_SIZE){
1661                 reply_size = REPLY_FRAME_SIZE;
1662         }
1663         reply_size *= 4;
1664         reply = kzalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL);
1665         if(reply == NULL) {
1666                 printk(KERN_WARNING"%s: Could not allocate reply buffer\n",pHba->name);
1667                 return -ENOMEM;
1668         }
1669         sg_offset = (msg[0]>>4)&0xf;
1670         msg[2] = 0x40000000; // IOCTL context
1671         msg[3] = (u32)reply;
1672         memset(sg_list,0, sizeof(sg_list[0])*pHba->sg_tablesize);
1673         if(sg_offset) {
1674                 // TODO 64bit fix
1675                 struct sg_simple_element *sg =  (struct sg_simple_element*) (msg+sg_offset);
1676                 sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
1677                 if (sg_count > pHba->sg_tablesize){
1678                         printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", pHba->name,sg_count);
1679                         kfree (reply);
1680                         return -EINVAL;
1681                 }
1682
1683                 for(i = 0; i < sg_count; i++) {
1684                         int sg_size;
1685
1686                         if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) {
1687                                 printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",pHba->name,i,  sg[i].flag_count);
1688                                 rcode = -EINVAL;
1689                                 goto cleanup;
1690                         }
1691                         sg_size = sg[i].flag_count & 0xffffff;
1692                         /* Allocate memory for the transfer */
1693                         p = kmalloc(sg_size, GFP_KERNEL|ADDR32);
1694                         if(!p) {
1695                                 printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
1696                                                 pHba->name,sg_size,i,sg_count);
1697                                 rcode = -ENOMEM;
1698                                 goto cleanup;
1699                         }
1700                         sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
1701                         /* Copy in the user's SG buffer if necessary */
1702                         if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) {
1703                                 // TODO 64bit fix
1704                                 if (copy_from_user(p,(void __user *)sg[i].addr_bus, sg_size)) {
1705                                         printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",pHba->name,i);
1706                                         rcode = -EFAULT;
1707                                         goto cleanup;
1708                                 }
1709                         }
1710                         //TODO 64bit fix
1711                         sg[i].addr_bus = (u32)virt_to_bus(p);
1712                 }
1713         }
1714
1715         do {
1716                 if(pHba->host)
1717                         spin_lock_irqsave(pHba->host->host_lock, flags);
1718                 // This state stops any new commands from enterring the
1719                 // controller while processing the ioctl
1720 //              pHba->state |= DPTI_STATE_IOCTL;
1721 //              We can't set this now - The scsi subsystem sets host_blocked and
1722 //              the queue empties and stops.  We need a way to restart the queue
1723                 rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER);
1724                 if (rcode != 0)
1725                         printk("adpt_i2o_passthru: post wait failed %d %p\n",
1726                                         rcode, reply);
1727 //              pHba->state &= ~DPTI_STATE_IOCTL;
1728                 if(pHba->host)
1729                         spin_unlock_irqrestore(pHba->host->host_lock, flags);
1730         } while(rcode == -ETIMEDOUT);
1731
1732         if(rcode){
1733                 goto cleanup;
1734         }
1735
1736         if(sg_offset) {
1737         /* Copy back the Scatter Gather buffers back to user space */
1738                 u32 j;
1739                 // TODO 64bit fix
1740                 struct sg_simple_element* sg;
1741                 int sg_size;
1742
1743                 // re-acquire the original message to handle correctly the sg copy operation
1744                 memset(&msg, 0, MAX_MESSAGE_SIZE*4);
1745                 // get user msg size in u32s
1746                 if(get_user(size, &user_msg[0])){
1747                         rcode = -EFAULT;
1748                         goto cleanup;
1749                 }
1750                 size = size>>16;
1751                 size *= 4;
1752                 /* Copy in the user's I2O command */
1753                 if (copy_from_user (msg, user_msg, size)) {
1754                         rcode = -EFAULT;
1755                         goto cleanup;
1756                 }
1757                 sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
1758
1759                 // TODO 64bit fix
1760                 sg       = (struct sg_simple_element*)(msg + sg_offset);
1761                 for (j = 0; j < sg_count; j++) {
1762                         /* Copy out the SG list to user's buffer if necessary */
1763                         if(! (sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) {
1764                                 sg_size = sg[j].flag_count & 0xffffff;
1765                                 // TODO 64bit fix
1766                                 if (copy_to_user((void __user *)sg[j].addr_bus,sg_list[j], sg_size)) {
1767                                         printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",pHba->name, sg_list[j], sg[j].addr_bus);
1768                                         rcode = -EFAULT;
1769                                         goto cleanup;
1770                                 }
1771                         }
1772                 }
1773         }
1774
1775         /* Copy back the reply to user space */
1776         if (reply_size) {
1777                 // we wrote our own values for context - now restore the user supplied ones
1778                 if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) {
1779                         printk(KERN_WARNING"%s: Could not copy message context FROM user\n",pHba->name);
1780                         rcode = -EFAULT;
1781                 }
1782                 if(copy_to_user(user_reply, reply, reply_size)) {
1783                         printk(KERN_WARNING"%s: Could not copy reply TO user\n",pHba->name);
1784                         rcode = -EFAULT;
1785                 }
1786         }
1787
1788
1789 cleanup:
1790         if (rcode != -ETIME && rcode != -EINTR)
1791                 kfree (reply);
1792         while(sg_index) {
1793                 if(sg_list[--sg_index]) {
1794                         if (rcode != -ETIME && rcode != -EINTR)
1795                                 kfree(sg_list[sg_index]);
1796                 }
1797         }
1798         return rcode;
1799 }
1800
1801
1802 /*
1803  * This routine returns information about the system.  This does not effect
1804  * any logic and if the info is wrong - it doesn't matter.
1805  */
1806
1807 /* Get all the info we can not get from kernel services */
1808 static int adpt_system_info(void __user *buffer)
1809 {
1810         sysInfo_S si;
1811
1812         memset(&si, 0, sizeof(si));
1813
1814         si.osType = OS_LINUX;
1815         si.osMajorVersion = 0;
1816         si.osMinorVersion = 0;
1817         si.osRevision = 0;
1818         si.busType = SI_PCI_BUS;
1819         si.processorFamily = DPTI_sig.dsProcessorFamily;
1820
1821 #if defined __i386__
1822         adpt_i386_info(&si);
1823 #elif defined (__ia64__)
1824         adpt_ia64_info(&si);
1825 #elif defined(__sparc__)
1826         adpt_sparc_info(&si);
1827 #elif defined (__alpha__)
1828         adpt_alpha_info(&si);
1829 #else
1830         si.processorType = 0xff ;
1831 #endif
1832         if(copy_to_user(buffer, &si, sizeof(si))){
1833                 printk(KERN_WARNING"dpti: Could not copy buffer TO user\n");
1834                 return -EFAULT;
1835         }
1836
1837         return 0;
1838 }
1839
1840 #if defined __ia64__
1841 static void adpt_ia64_info(sysInfo_S* si)
1842 {
1843         // This is all the info we need for now
1844         // We will add more info as our new
1845         // managmenent utility requires it
1846         si->processorType = PROC_IA64;
1847 }
1848 #endif
1849
1850
1851 #if defined __sparc__
1852 static void adpt_sparc_info(sysInfo_S* si)
1853 {
1854         // This is all the info we need for now
1855         // We will add more info as our new
1856         // managmenent utility requires it
1857         si->processorType = PROC_ULTRASPARC;
1858 }
1859 #endif
1860
1861 #if defined __alpha__
1862 static void adpt_alpha_info(sysInfo_S* si)
1863 {
1864         // This is all the info we need for now
1865         // We will add more info as our new
1866         // managmenent utility requires it
1867         si->processorType = PROC_ALPHA;
1868 }
1869 #endif
1870
1871 #if defined __i386__
1872
1873 static void adpt_i386_info(sysInfo_S* si)
1874 {
1875         // This is all the info we need for now
1876         // We will add more info as our new
1877         // managmenent utility requires it
1878         switch (boot_cpu_data.x86) {
1879         case CPU_386:
1880                 si->processorType = PROC_386;
1881                 break;
1882         case CPU_486:
1883                 si->processorType = PROC_486;
1884                 break;
1885         case CPU_586:
1886                 si->processorType = PROC_PENTIUM;
1887                 break;
1888         default:  // Just in case
1889                 si->processorType = PROC_PENTIUM;
1890                 break;
1891         }
1892 }
1893
1894 #endif
1895
1896
1897 static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd,
1898               ulong arg)
1899 {
1900         int minor;
1901         int error = 0;
1902         adpt_hba* pHba;
1903         ulong flags = 0;
1904         void __user *argp = (void __user *)arg;
1905
1906         minor = iminor(inode);
1907         if (minor >= DPTI_MAX_HBA){
1908                 return -ENXIO;
1909         }
1910         mutex_lock(&adpt_configuration_lock);
1911         for (pHba = hba_chain; pHba; pHba = pHba->next) {
1912                 if (pHba->unit == minor) {
1913                         break;  /* found adapter */
1914                 }
1915         }
1916         mutex_unlock(&adpt_configuration_lock);
1917         if(pHba == NULL){
1918                 return -ENXIO;
1919         }
1920
1921         while((volatile u32) pHba->state & DPTI_STATE_RESET )
1922                 schedule_timeout_uninterruptible(2);
1923
1924         switch (cmd) {
1925         // TODO: handle 3 cases
1926         case DPT_SIGNATURE:
1927                 if (copy_to_user(argp, &DPTI_sig, sizeof(DPTI_sig))) {
1928                         return -EFAULT;
1929                 }
1930                 break;
1931         case I2OUSRCMD:
1932                 return adpt_i2o_passthru(pHba, argp);
1933
1934         case DPT_CTRLINFO:{
1935                 drvrHBAinfo_S HbaInfo;
1936
1937 #define FLG_OSD_PCI_VALID 0x0001
1938 #define FLG_OSD_DMA       0x0002
1939 #define FLG_OSD_I2O       0x0004
1940                 memset(&HbaInfo, 0, sizeof(HbaInfo));
1941                 HbaInfo.drvrHBAnum = pHba->unit;
1942                 HbaInfo.baseAddr = (ulong) pHba->base_addr_phys;
1943                 HbaInfo.blinkState = adpt_read_blink_led(pHba);
1944                 HbaInfo.pciBusNum =  pHba->pDev->bus->number;
1945                 HbaInfo.pciDeviceNum=PCI_SLOT(pHba->pDev->devfn);
1946                 HbaInfo.Interrupt = pHba->pDev->irq;
1947                 HbaInfo.hbaFlags = FLG_OSD_PCI_VALID | FLG_OSD_DMA | FLG_OSD_I2O;
1948                 if(copy_to_user(argp, &HbaInfo, sizeof(HbaInfo))){
1949                         printk(KERN_WARNING"%s: Could not copy HbaInfo TO user\n",pHba->name);
1950                         return -EFAULT;
1951                 }
1952                 break;
1953                 }
1954         case DPT_SYSINFO:
1955                 return adpt_system_info(argp);
1956         case DPT_BLINKLED:{
1957                 u32 value;
1958                 value = (u32)adpt_read_blink_led(pHba);
1959                 if (copy_to_user(argp, &value, sizeof(value))) {
1960                         return -EFAULT;
1961                 }
1962                 break;
1963                 }
1964         case I2ORESETCMD:
1965                 if(pHba->host)
1966                         spin_lock_irqsave(pHba->host->host_lock, flags);
1967                 adpt_hba_reset(pHba);
1968                 if(pHba->host)
1969                         spin_unlock_irqrestore(pHba->host->host_lock, flags);
1970                 break;
1971         case I2ORESCANCMD:
1972                 adpt_rescan(pHba);
1973                 break;
1974         default:
1975                 return -EINVAL;
1976         }
1977
1978         return error;
1979 }
1980
1981
1982 static irqreturn_t adpt_isr(int irq, void *dev_id)
1983 {
1984         struct scsi_cmnd* cmd;
1985         adpt_hba* pHba = dev_id;
1986         u32 m;
1987         void __iomem *reply;
1988         u32 status=0;
1989         u32 context;
1990         ulong flags = 0;
1991         int handled = 0;
1992
1993         if (pHba == NULL){
1994                 printk(KERN_WARNING"adpt_isr: NULL dev_id\n");
1995                 return IRQ_NONE;
1996         }
1997         if(pHba->host)
1998                 spin_lock_irqsave(pHba->host->host_lock, flags);
1999
2000         while( readl(pHba->irq_mask) & I2O_INTERRUPT_PENDING_B) {
2001                 m = readl(pHba->reply_port);
2002                 if(m == EMPTY_QUEUE){
2003                         // Try twice then give up
2004                         rmb();
2005                         m = readl(pHba->reply_port);
2006                         if(m == EMPTY_QUEUE){
2007                                 // This really should not happen
2008                                 printk(KERN_ERR"dpti: Could not get reply frame\n");
2009                                 goto out;
2010                         }
2011                 }
2012                 reply = bus_to_virt(m);
2013
2014                 if (readl(reply) & MSG_FAIL) {
2015                         u32 old_m = readl(reply+28);
2016                         void __iomem *msg;
2017                         u32 old_context;
2018                         PDEBUG("%s: Failed message\n",pHba->name);
2019                         if(old_m >= 0x100000){
2020                                 printk(KERN_ERR"%s: Bad preserved MFA (%x)- dropping frame\n",pHba->name,old_m);
2021                                 writel(m,pHba->reply_port);
2022                                 continue;
2023                         }
2024                         // Transaction context is 0 in failed reply frame
2025                         msg = pHba->msg_addr_virt + old_m;
2026                         old_context = readl(msg+12);
2027                         writel(old_context, reply+12);
2028                         adpt_send_nop(pHba, old_m);
2029                 }
2030                 context = readl(reply+8);
2031                 if(context & 0x40000000){ // IOCTL
2032                         void *p = (void *)readl(reply+12);
2033                         if( p != NULL) {
2034                                 memcpy_fromio(p, reply, REPLY_FRAME_SIZE * 4);
2035                         }
2036                         // All IOCTLs will also be post wait
2037                 }
2038                 if(context & 0x80000000){ // Post wait message
2039                         status = readl(reply+16);
2040                         if(status  >> 24){
2041                                 status &=  0xffff; /* Get detail status */
2042                         } else {
2043                                 status = I2O_POST_WAIT_OK;
2044                         }
2045                         if(!(context & 0x40000000)) {
2046                                 cmd = (struct scsi_cmnd*) readl(reply+12);
2047                                 if(cmd != NULL) {
2048                                         printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context);
2049                                 }
2050                         }
2051                         adpt_i2o_post_wait_complete(context, status);
2052                 } else { // SCSI message
2053                         cmd = (struct scsi_cmnd*) readl(reply+12);
2054                         if(cmd != NULL){
2055                                 if(cmd->serial_number != 0) { // If not timedout
2056                                         adpt_i2o_to_scsi(reply, cmd);
2057                                 }
2058                         }
2059                 }
2060                 writel(m, pHba->reply_port);
2061                 wmb();
2062                 rmb();
2063         }
2064         handled = 1;
2065 out:    if(pHba->host)
2066                 spin_unlock_irqrestore(pHba->host->host_lock, flags);
2067         return IRQ_RETVAL(handled);
2068 }
2069
2070 static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* d)
2071 {
2072         int i;
2073         u32 msg[MAX_MESSAGE_SIZE];
2074         u32* mptr;
2075         u32 *lenptr;
2076         int direction;
2077         int scsidir;
2078         int nseg;
2079         u32 len;
2080         u32 reqlen;
2081         s32 rcode;
2082
2083         memset(msg, 0 , sizeof(msg));
2084         len = scsi_bufflen(cmd);
2085         direction = 0x00000000;
2086
2087         scsidir = 0x00000000;                   // DATA NO XFER
2088         if(len) {
2089                 /*
2090                  * Set SCBFlags to indicate if data is being transferred
2091                  * in or out, or no data transfer
2092                  * Note:  Do not have to verify index is less than 0 since
2093                  * cmd->cmnd[0] is an unsigned char
2094                  */
2095                 switch(cmd->sc_data_direction){
2096                 case DMA_FROM_DEVICE:
2097                         scsidir  =0x40000000;   // DATA IN  (iop<--dev)
2098                         break;
2099                 case DMA_TO_DEVICE:
2100                         direction=0x04000000;   // SGL OUT
2101                         scsidir  =0x80000000;   // DATA OUT (iop-->dev)
2102                         break;
2103                 case DMA_NONE:
2104                         break;
2105                 case DMA_BIDIRECTIONAL:
2106                         scsidir  =0x40000000;   // DATA IN  (iop<--dev)
2107                         // Assume In - and continue;
2108                         break;
2109                 default:
2110                         printk(KERN_WARNING"%s: scsi opcode 0x%x not supported.\n",
2111                              pHba->name, cmd->cmnd[0]);
2112                         cmd->result = (DID_OK <<16) | (INITIATOR_ERROR << 8);
2113                         cmd->scsi_done(cmd);
2114                         return  0;
2115                 }
2116         }
2117         // msg[0] is set later
2118         // I2O_CMD_SCSI_EXEC
2119         msg[1] = ((0xff<<24)|(HOST_TID<<12)|d->tid);
2120         msg[2] = 0;
2121         msg[3] = (u32)cmd;      /* We want the SCSI control block back */
2122         // Our cards use the transaction context as the tag for queueing
2123         // Adaptec/DPT Private stuff
2124         msg[4] = I2O_CMD_SCSI_EXEC|(DPT_ORGANIZATION_ID<<16);
2125         msg[5] = d->tid;
2126         /* Direction, disconnect ok | sense data | simple queue , CDBLen */
2127         // I2O_SCB_FLAG_ENABLE_DISCONNECT |
2128         // I2O_SCB_FLAG_SIMPLE_QUEUE_TAG |
2129         // I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE;
2130         msg[6] = scsidir|0x20a00000|cmd->cmd_len;
2131
2132         mptr=msg+7;
2133
2134         // Write SCSI command into the message - always 16 byte block
2135         memset(mptr, 0,  16);
2136         memcpy(mptr, cmd->cmnd, cmd->cmd_len);
2137         mptr+=4;
2138         lenptr=mptr++;          /* Remember me - fill in when we know */
2139         reqlen = 14;            // SINGLE SGE
2140         /* Now fill in the SGList and command */
2141
2142         nseg = scsi_dma_map(cmd);
2143         BUG_ON(nseg < 0);
2144         if (nseg) {
2145                 struct scatterlist *sg;
2146
2147                 len = 0;
2148                 scsi_for_each_sg(cmd, sg, nseg, i) {
2149                         *mptr++ = direction|0x10000000|sg_dma_len(sg);
2150                         len+=sg_dma_len(sg);
2151                         *mptr++ = sg_dma_address(sg);
2152                         /* Make this an end of list */
2153                         if (i == nseg - 1)
2154                                 mptr[-2] = direction|0xD0000000|sg_dma_len(sg);
2155                 }
2156                 reqlen = mptr - msg;
2157                 *lenptr = len;
2158
2159                 if(cmd->underflow && len != cmd->underflow){
2160                         printk(KERN_WARNING"Cmd len %08X Cmd underflow %08X\n",
2161                                 len, cmd->underflow);
2162                 }
2163         } else {
2164                 *lenptr = len = 0;
2165                 reqlen = 12;
2166         }
2167
2168         /* Stick the headers on */
2169         msg[0] = reqlen<<16 | ((reqlen > 12) ? SGL_OFFSET_12 : SGL_OFFSET_0);
2170
2171         // Send it on it's way
2172         rcode = adpt_i2o_post_this(pHba, msg, reqlen<<2);
2173         if (rcode == 0) {
2174                 return 0;
2175         }
2176         return rcode;
2177 }
2178
2179
2180 static s32 adpt_scsi_register(adpt_hba* pHba,struct scsi_host_template * sht)
2181 {
2182         struct Scsi_Host *host = NULL;
2183
2184         host = scsi_register(sht, sizeof(adpt_hba*));
2185         if (host == NULL) {
2186                 printk ("%s: scsi_register returned NULL\n",pHba->name);
2187                 return -1;
2188         }
2189         host->hostdata[0] = (unsigned long)pHba;
2190         pHba->host = host;
2191
2192         host->irq = pHba->pDev->irq;
2193         /* no IO ports, so don't have to set host->io_port and
2194          * host->n_io_port
2195          */
2196         host->io_port = 0;
2197         host->n_io_port = 0;
2198                                 /* see comments in scsi_host.h */
2199         host->max_id = 16;
2200         host->max_lun = 256;
2201         host->max_channel = pHba->top_scsi_channel + 1;
2202         host->cmd_per_lun = 1;
2203         host->unique_id = (uint) pHba;
2204         host->sg_tablesize = pHba->sg_tablesize;
2205         host->can_queue = pHba->post_fifo_size;
2206
2207         return 0;
2208 }
2209
2210
2211 static s32 adpt_i2o_to_scsi(void __iomem *reply, struct scsi_cmnd* cmd)
2212 {
2213         adpt_hba* pHba;
2214         u32 hba_status;
2215         u32 dev_status;
2216         u32 reply_flags = readl(reply) & 0xff00; // Leave it shifted up 8 bits
2217         // I know this would look cleaner if I just read bytes
2218         // but the model I have been using for all the rest of the
2219         // io is in 4 byte words - so I keep that model
2220         u16 detailed_status = readl(reply+16) &0xffff;
2221         dev_status = (detailed_status & 0xff);
2222         hba_status = detailed_status >> 8;
2223
2224         // calculate resid for sg
2225         scsi_set_resid(cmd, scsi_bufflen(cmd) - readl(reply+5));
2226
2227         pHba = (adpt_hba*) cmd->device->host->hostdata[0];
2228
2229         cmd->sense_buffer[0] = '\0';  // initialize sense valid flag to false
2230
2231         if(!(reply_flags & MSG_FAIL)) {
2232                 switch(detailed_status & I2O_SCSI_DSC_MASK) {
2233                 case I2O_SCSI_DSC_SUCCESS:
2234                         cmd->result = (DID_OK << 16);
2235                         // handle underflow
2236                         if(readl(reply+5) < cmd->underflow ) {
2237                                 cmd->result = (DID_ERROR <<16);
2238                                 printk(KERN_WARNING"%s: SCSI CMD underflow\n",pHba->name);
2239                         }
2240                         break;
2241                 case I2O_SCSI_DSC_REQUEST_ABORTED:
2242                         cmd->result = (DID_ABORT << 16);
2243                         break;
2244                 case I2O_SCSI_DSC_PATH_INVALID:
2245                 case I2O_SCSI_DSC_DEVICE_NOT_PRESENT:
2246                 case I2O_SCSI_DSC_SELECTION_TIMEOUT:
2247                 case I2O_SCSI_DSC_COMMAND_TIMEOUT:
2248                 case I2O_SCSI_DSC_NO_ADAPTER:
2249                 case I2O_SCSI_DSC_RESOURCE_UNAVAILABLE:
2250                         printk(KERN_WARNING"%s: SCSI Timeout-Device (%d,%d,%d) hba status=0x%x, dev status=0x%x, cmd=0x%x\n",
2251                                 pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun, hba_status, dev_status, cmd->cmnd[0]);
2252                         cmd->result = (DID_TIME_OUT << 16);
2253                         break;
2254                 case I2O_SCSI_DSC_ADAPTER_BUSY:
2255                 case I2O_SCSI_DSC_BUS_BUSY:
2256                         cmd->result = (DID_BUS_BUSY << 16);
2257                         break;
2258                 case I2O_SCSI_DSC_SCSI_BUS_RESET:
2259                 case I2O_SCSI_DSC_BDR_MESSAGE_SENT:
2260                         cmd->result = (DID_RESET << 16);
2261                         break;
2262                 case I2O_SCSI_DSC_PARITY_ERROR_FAILURE:
2263                         printk(KERN_WARNING"%s: SCSI CMD parity error\n",pHba->name);
2264                         cmd->result = (DID_PARITY << 16);
2265                         break;
2266                 case I2O_SCSI_DSC_UNABLE_TO_ABORT:
2267                 case I2O_SCSI_DSC_COMPLETE_WITH_ERROR:
2268                 case I2O_SCSI_DSC_UNABLE_TO_TERMINATE:
2269                 case I2O_SCSI_DSC_MR_MESSAGE_RECEIVED:
2270                 case I2O_SCSI_DSC_AUTOSENSE_FAILED:
2271                 case I2O_SCSI_DSC_DATA_OVERRUN:
2272                 case I2O_SCSI_DSC_UNEXPECTED_BUS_FREE:
2273                 case I2O_SCSI_DSC_SEQUENCE_FAILURE:
2274                 case I2O_SCSI_DSC_REQUEST_LENGTH_ERROR:
2275                 case I2O_SCSI_DSC_PROVIDE_FAILURE:
2276                 case I2O_SCSI_DSC_REQUEST_TERMINATED:
2277                 case I2O_SCSI_DSC_IDE_MESSAGE_SENT:
2278                 case I2O_SCSI_DSC_UNACKNOWLEDGED_EVENT:
2279                 case I2O_SCSI_DSC_MESSAGE_RECEIVED:
2280                 case I2O_SCSI_DSC_INVALID_CDB:
2281                 case I2O_SCSI_DSC_LUN_INVALID:
2282                 case I2O_SCSI_DSC_SCSI_TID_INVALID:
2283                 case I2O_SCSI_DSC_FUNCTION_UNAVAILABLE:
2284                 case I2O_SCSI_DSC_NO_NEXUS:
2285                 case I2O_SCSI_DSC_CDB_RECEIVED:
2286                 case I2O_SCSI_DSC_LUN_ALREADY_ENABLED:
2287                 case I2O_SCSI_DSC_QUEUE_FROZEN:
2288                 case I2O_SCSI_DSC_REQUEST_INVALID:
2289                 default:
2290                         printk(KERN_WARNING"%s: SCSI error %0x-Device(%d,%d,%d) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
2291                                 pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun,
2292                                hba_status, dev_status, cmd->cmnd[0]);
2293                         cmd->result = (DID_ERROR << 16);
2294                         break;
2295                 }
2296
2297                 // copy over the request sense data if it was a check
2298                 // condition status
2299                 if (dev_status == SAM_STAT_CHECK_CONDITION) {
2300                         u32 len = min(SCSI_SENSE_BUFFERSIZE, 40);
2301                         // Copy over the sense data
2302                         memcpy_fromio(cmd->sense_buffer, (reply+28) , len);
2303                         if(cmd->sense_buffer[0] == 0x70 /* class 7 */ &&
2304                            cmd->sense_buffer[2] == DATA_PROTECT ){
2305                                 /* This is to handle an array failed */
2306                                 cmd->result = (DID_TIME_OUT << 16);
2307                                 printk(KERN_WARNING"%s: SCSI Data Protect-Device (%d,%d,%d) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
2308                                         pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun,
2309                                         hba_status, dev_status, cmd->cmnd[0]);
2310
2311                         }
2312                 }
2313         } else {
2314                 /* In this condtion we could not talk to the tid
2315                  * the card rejected it.  We should signal a retry
2316                  * for a limitted number of retries.
2317                  */
2318                 cmd->result = (DID_TIME_OUT << 16);
2319                 printk(KERN_WARNING"%s: I2O MSG_FAIL - Device (%d,%d,%d) tid=%d, cmd=0x%x\n",
2320                         pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun,
2321                         ((struct adpt_device*)(cmd->device->hostdata))->tid, cmd->cmnd[0]);
2322         }
2323
2324         cmd->result |= (dev_status);
2325
2326         if(cmd->scsi_done != NULL){
2327                 cmd->scsi_done(cmd);
2328         }
2329         return cmd->result;
2330 }
2331
2332
2333 static s32 adpt_rescan(adpt_hba* pHba)
2334 {
2335         s32 rcode;
2336         ulong flags = 0;
2337
2338         if(pHba->host)
2339                 spin_lock_irqsave(pHba->host->host_lock, flags);
2340         if ((rcode=adpt_i2o_lct_get(pHba)) < 0)
2341                 goto out;
2342         if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0)
2343                 goto out;
2344         rcode = 0;
2345 out:    if(pHba->host)
2346                 spin_unlock_irqrestore(pHba->host->host_lock, flags);
2347         return rcode;
2348 }
2349
2350
2351 static s32 adpt_i2o_reparse_lct(adpt_hba* pHba)
2352 {
2353         int i;
2354         int max;
2355         int tid;
2356         struct i2o_device *d;
2357         i2o_lct *lct = pHba->lct;
2358         u8 bus_no = 0;
2359         s16 scsi_id;
2360         s16 scsi_lun;
2361         u32 buf[10]; // at least 8 u32's
2362         struct adpt_device* pDev = NULL;
2363         struct i2o_device* pI2o_dev = NULL;
2364
2365         if (lct == NULL) {
2366                 printk(KERN_ERR "%s: LCT is empty???\n",pHba->name);
2367                 return -1;
2368         }
2369
2370         max = lct->table_size;
2371         max -= 3;
2372         max /= 9;
2373
2374         // Mark each drive as unscanned
2375         for (d = pHba->devices; d; d = d->next) {
2376                 pDev =(struct adpt_device*) d->owner;
2377                 if(!pDev){
2378                         continue;
2379                 }
2380                 pDev->state |= DPTI_DEV_UNSCANNED;
2381         }
2382
2383         printk(KERN_INFO "%s: LCT has %d entries.\n", pHba->name,max);
2384
2385         for(i=0;i<max;i++) {
2386                 if( lct->lct_entry[i].user_tid != 0xfff){
2387                         continue;
2388                 }
2389
2390                 if( lct->lct_entry[i].class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE ||
2391                     lct->lct_entry[i].class_id == I2O_CLASS_SCSI_PERIPHERAL ||
2392                     lct->lct_entry[i].class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
2393                         tid = lct->lct_entry[i].tid;
2394                         if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) {
2395                                 printk(KERN_ERR"%s: Could not query device\n",pHba->name);
2396                                 continue;
2397                         }
2398                         bus_no = buf[0]>>16;
2399                         scsi_id = buf[1];
2400                         scsi_lun = (buf[2]>>8 )&0xff;
2401                         pDev = pHba->channel[bus_no].device[scsi_id];
2402                         /* da lun */
2403                         while(pDev) {
2404                                 if(pDev->scsi_lun == scsi_lun) {
2405                                         break;
2406                                 }
2407                                 pDev = pDev->next_lun;
2408                         }
2409                         if(!pDev ) { // Something new add it
2410                                 d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
2411                                 if(d==NULL)
2412                                 {
2413                                         printk(KERN_CRIT "Out of memory for I2O device data.\n");
2414                                         return -ENOMEM;
2415                                 }
2416
2417                                 d->controller = pHba;
2418                                 d->next = NULL;
2419
2420                                 memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
2421
2422                                 d->flags = 0;
2423                                 adpt_i2o_report_hba_unit(pHba, d);
2424                                 adpt_i2o_install_device(pHba, d);
2425
2426                                 if(bus_no >= MAX_CHANNEL) {     // Something wrong skip it
2427                                         printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no);
2428                                         continue;
2429                                 }
2430                                 pDev = pHba->channel[bus_no].device[scsi_id];
2431                                 if( pDev == NULL){
2432                                         pDev =  kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
2433                                         if(pDev == NULL) {
2434                                                 return -ENOMEM;
2435                                         }
2436                                         pHba->channel[bus_no].device[scsi_id] = pDev;
2437                                 } else {
2438                                         while (pDev->next_lun) {
2439                                                 pDev = pDev->next_lun;
2440                                         }
2441                                         pDev = pDev->next_lun = kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
2442                                         if(pDev == NULL) {
2443                                                 return -ENOMEM;
2444                                         }
2445                                 }
2446                                 pDev->tid = d->lct_data.tid;
2447                                 pDev->scsi_channel = bus_no;
2448                                 pDev->scsi_id = scsi_id;
2449                                 pDev->scsi_lun = scsi_lun;
2450                                 pDev->pI2o_dev = d;
2451                                 d->owner = pDev;
2452                                 pDev->type = (buf[0])&0xff;
2453                                 pDev->flags = (buf[0]>>8)&0xff;
2454                                 // Too late, SCSI system has made up it's mind, but what the hey ...
2455                                 if(scsi_id > pHba->top_scsi_id){
2456                                         pHba->top_scsi_id = scsi_id;
2457                                 }
2458                                 if(scsi_lun > pHba->top_scsi_lun){
2459                                         pHba->top_scsi_lun = scsi_lun;
2460                                 }
2461                                 continue;
2462                         } // end of new i2o device
2463
2464                         // We found an old device - check it
2465                         while(pDev) {
2466                                 if(pDev->scsi_lun == scsi_lun) {
2467                                         if(!scsi_device_online(pDev->pScsi_dev)) {
2468                                                 printk(KERN_WARNING"%s: Setting device (%d,%d,%d) back online\n",
2469                                                                 pHba->name,bus_no,scsi_id,scsi_lun);
2470                                                 if (pDev->pScsi_dev) {
2471                                                         scsi_device_set_state(pDev->pScsi_dev, SDEV_RUNNING);
2472                                                 }
2473                                         }
2474                                         d = pDev->pI2o_dev;
2475                                         if(d->lct_data.tid != tid) { // something changed
2476                                                 pDev->tid = tid;
2477                                                 memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
2478                                                 if (pDev->pScsi_dev) {
2479                                                         pDev->pScsi_dev->changed = TRUE;
2480                                                         pDev->pScsi_dev->removable = TRUE;
2481                                                 }
2482                                         }
2483                                         // Found it - mark it scanned
2484                                         pDev->state = DPTI_DEV_ONLINE;
2485                                         break;
2486                                 }
2487                                 pDev = pDev->next_lun;
2488                         }
2489                 }
2490         }
2491         for (pI2o_dev = pHba->devices; pI2o_dev; pI2o_dev = pI2o_dev->next) {
2492                 pDev =(struct adpt_device*) pI2o_dev->owner;
2493                 if(!pDev){
2494                         continue;
2495                 }
2496                 // Drive offline drives that previously existed but could not be found
2497                 // in the LCT table
2498                 if (pDev->state & DPTI_DEV_UNSCANNED){
2499                         pDev->state = DPTI_DEV_OFFLINE;
2500                         printk(KERN_WARNING"%s: Device (%d,%d,%d) offline\n",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun);
2501                         if (pDev->pScsi_dev) {
2502                                 scsi_device_set_state(pDev->pScsi_dev, SDEV_OFFLINE);
2503                         }
2504                 }
2505         }
2506         return 0;
2507 }
2508
2509 static void adpt_fail_posted_scbs(adpt_hba* pHba)
2510 {
2511         struct scsi_cmnd*       cmd = NULL;
2512         struct scsi_device*     d = NULL;
2513
2514         shost_for_each_device(d, pHba->host) {
2515                 unsigned long flags;
2516                 spin_lock_irqsave(&d->list_lock, flags);
2517                 list_for_each_entry(cmd, &d->cmd_list, list) {
2518                         if(cmd->serial_number == 0){
2519                                 continue;
2520                         }
2521                         cmd->result = (DID_OK << 16) | (QUEUE_FULL <<1);
2522                         cmd->scsi_done(cmd);
2523                 }
2524                 spin_unlock_irqrestore(&d->list_lock, flags);
2525         }
2526 }
2527
2528
2529 /*============================================================================
2530  *  Routines from i2o subsystem
2531  *============================================================================
2532  */
2533
2534
2535
2536 /*
2537  *      Bring an I2O controller into HOLD state. See the spec.
2538  */
2539 static int adpt_i2o_activate_hba(adpt_hba* pHba)
2540 {
2541         int rcode;
2542
2543         if(pHba->initialized ) {
2544                 if (adpt_i2o_status_get(pHba) < 0) {
2545                         if((rcode = adpt_i2o_reset_hba(pHba)) != 0){
2546                                 printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name);
2547                                 return rcode;
2548                         }
2549                         if (adpt_i2o_status_get(pHba) < 0) {
2550                                 printk(KERN_INFO "HBA not responding.\n");
2551                                 return -1;
2552                         }
2553                 }
2554
2555                 if(pHba->status_block->iop_state == ADAPTER_STATE_FAULTED) {
2556                         printk(KERN_CRIT "%s: hardware fault\n", pHba->name);
2557                         return -1;
2558                 }
2559
2560                 if (pHba->status_block->iop_state == ADAPTER_STATE_READY ||
2561                     pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL ||
2562                     pHba->status_block->iop_state == ADAPTER_STATE_HOLD ||
2563                     pHba->status_block->iop_state == ADAPTER_STATE_FAILED) {
2564                         adpt_i2o_reset_hba(pHba);
2565                         if (adpt_i2o_status_get(pHba) < 0 || pHba->status_block->iop_state != ADAPTER_STATE_RESET) {
2566                                 printk(KERN_ERR "%s: Failed to initialize.\n", pHba->name);
2567                                 return -1;
2568                         }
2569                 }
2570         } else {
2571                 if((rcode = adpt_i2o_reset_hba(pHba)) != 0){
2572                         printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name);
2573                         return rcode;
2574                 }
2575
2576         }
2577
2578         if (adpt_i2o_init_outbound_q(pHba) < 0) {
2579                 return -1;
2580         }
2581
2582         /* In HOLD state */
2583
2584         if (adpt_i2o_hrt_get(pHba) < 0) {
2585                 return -1;
2586         }
2587
2588         return 0;
2589 }
2590
2591 /*
2592  *      Bring a controller online into OPERATIONAL state.
2593  */
2594
2595 static int adpt_i2o_online_hba(adpt_hba* pHba)
2596 {
2597         if (adpt_i2o_systab_send(pHba) < 0) {
2598                 adpt_i2o_delete_hba(pHba);
2599                 return -1;
2600         }
2601         /* In READY state */
2602
2603         if (adpt_i2o_enable_hba(pHba) < 0) {
2604                 adpt_i2o_delete_hba(pHba);
2605                 return -1;
2606         }
2607
2608         /* In OPERATIONAL state  */
2609         return 0;
2610 }
2611
2612 static s32 adpt_send_nop(adpt_hba*pHba,u32 m)
2613 {
2614         u32 __iomem *msg;
2615         ulong timeout = jiffies + 5*HZ;
2616
2617         while(m == EMPTY_QUEUE){
2618                 rmb();
2619                 m = readl(pHba->post_port);
2620                 if(m != EMPTY_QUEUE){
2621                         break;
2622                 }
2623                 if(time_after(jiffies,timeout)){
2624                         printk(KERN_ERR "%s: Timeout waiting for message frame!\n",pHba->name);
2625                         return 2;
2626                 }
2627                 schedule_timeout_uninterruptible(1);
2628         }
2629         msg = (u32 __iomem *)(pHba->msg_addr_virt + m);
2630         writel( THREE_WORD_MSG_SIZE | SGL_OFFSET_0,&msg[0]);
2631         writel( I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0,&msg[1]);
2632         writel( 0,&msg[2]);
2633         wmb();
2634
2635         writel(m, pHba->post_port);
2636         wmb();
2637         return 0;
2638 }
2639
2640 static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba)
2641 {
2642         u8 *status;
2643         u32 __iomem *msg = NULL;
2644         int i;
2645         ulong timeout = jiffies + TMOUT_INITOUTBOUND*HZ;
2646         u32* ptr;
2647         u32 outbound_frame;  // This had to be a 32 bit address
2648         u32 m;
2649
2650         do {
2651                 rmb();
2652                 m = readl(pHba->post_port);
2653                 if (m != EMPTY_QUEUE) {
2654                         break;
2655                 }
2656
2657                 if(time_after(jiffies,timeout)){
2658                         printk(KERN_WARNING"%s: Timeout waiting for message frame\n",pHba->name);
2659                         return -ETIMEDOUT;
2660                 }
2661                 schedule_timeout_uninterruptible(1);
2662         } while(m == EMPTY_QUEUE);
2663
2664         msg=(u32 __iomem *)(pHba->msg_addr_virt+m);
2665
2666         status = kzalloc(4, GFP_KERNEL|ADDR32);
2667         if (!status) {
2668                 adpt_send_nop(pHba, m);
2669                 printk(KERN_WARNING"%s: IOP reset failed - no free memory.\n",
2670                         pHba->name);
2671                 return -ENOMEM;
2672         }
2673
2674         writel(EIGHT_WORD_MSG_SIZE| SGL_OFFSET_6, &msg[0]);
2675         writel(I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID, &msg[1]);
2676         writel(0, &msg[2]);
2677         writel(0x0106, &msg[3]);        /* Transaction context */
2678         writel(4096, &msg[4]);          /* Host page frame size */
2679         writel((REPLY_FRAME_SIZE)<<16|0x80, &msg[5]);   /* Outbound msg frame size and Initcode */
2680         writel(0xD0000004, &msg[6]);            /* Simple SG LE, EOB */
2681         writel(virt_to_bus(status), &msg[7]);
2682
2683         writel(m, pHba->post_port);
2684         wmb();
2685
2686         // Wait for the reply status to come back
2687         do {
2688                 if (*status) {
2689                         if (*status != 0x01 /*I2O_EXEC_OUTBOUND_INIT_IN_PROGRESS*/) {
2690                                 break;
2691                         }
2692                 }
2693                 rmb();
2694                 if(time_after(jiffies,timeout)){
2695                         printk(KERN_WARNING"%s: Timeout Initializing\n",pHba->name);
2696                         return -ETIMEDOUT;
2697                 }
2698                 schedule_timeout_uninterruptible(1);
2699         } while (1);
2700
2701         // If the command was successful, fill the fifo with our reply
2702         // message packets
2703         if(*status != 0x04 /*I2O_EXEC_OUTBOUND_INIT_COMPLETE*/) {
2704                 kfree(status);
2705                 return -2;
2706         }
2707         kfree(status);
2708
2709         kfree(pHba->reply_pool);
2710
2711         pHba->reply_pool = kzalloc(pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, GFP_KERNEL|ADDR32);
2712         if (!pHba->reply_pool) {
2713                 printk(KERN_ERR "%s: Could not allocate reply pool\n", pHba->name);
2714                 return -ENOMEM;
2715         }
2716
2717         ptr = pHba->reply_pool;
2718         for(i = 0; i < pHba->reply_fifo_size; i++) {
2719                 outbound_frame = (u32)virt_to_bus(ptr);
2720                 writel(outbound_frame, pHba->reply_port);
2721                 wmb();
2722                 ptr +=  REPLY_FRAME_SIZE;
2723         }
2724         adpt_i2o_status_get(pHba);
2725         return 0;
2726 }
2727
2728
2729 /*
2730  * I2O System Table.  Contains information about
2731  * all the IOPs in the system.  Used to inform IOPs
2732  * about each other's existence.
2733  *
2734  * sys_tbl_ver is the CurrentChangeIndicator that is
2735  * used by IOPs to track changes.
2736  */
2737
2738
2739
2740 static s32 adpt_i2o_status_get(adpt_hba* pHba)
2741 {
2742         ulong timeout;
2743         u32 m;
2744         u32 __iomem *msg;
2745         u8 *status_block=NULL;
2746         ulong status_block_bus;
2747
2748         if(pHba->status_block == NULL) {
2749                 pHba->status_block = (i2o_status_block*)
2750                         kmalloc(sizeof(i2o_status_block),GFP_KERNEL|ADDR32);
2751                 if(pHba->status_block == NULL) {
2752                         printk(KERN_ERR
2753                         "dpti%d: Get Status Block failed; Out of memory. \n",
2754                         pHba->unit);
2755                         return -ENOMEM;
2756                 }
2757         }
2758         memset(pHba->status_block, 0, sizeof(i2o_status_block));
2759         status_block = (u8*)(pHba->status_block);
2760         status_block_bus = virt_to_bus(pHba->status_block);
2761         timeout = jiffies+TMOUT_GETSTATUS*HZ;
2762         do {
2763                 rmb();
2764                 m = readl(pHba->post_port);
2765                 if (m != EMPTY_QUEUE) {
2766                         break;
2767                 }
2768                 if(time_after(jiffies,timeout)){
2769                         printk(KERN_ERR "%s: Timeout waiting for message !\n",
2770                                         pHba->name);
2771                         return -ETIMEDOUT;
2772                 }
2773                 schedule_timeout_uninterruptible(1);
2774         } while(m==EMPTY_QUEUE);
2775
2776
2777         msg=(u32 __iomem *)(pHba->msg_addr_virt+m);
2778
2779         writel(NINE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg[0]);
2780         writel(I2O_CMD_STATUS_GET<<24|HOST_TID<<12|ADAPTER_TID, &msg[1]);
2781         writel(1, &msg[2]);
2782         writel(0, &msg[3]);
2783         writel(0, &msg[4]);
2784         writel(0, &msg[5]);
2785         writel(((u32)status_block_bus)&0xffffffff, &msg[6]);
2786         writel(0, &msg[7]);
2787         writel(sizeof(i2o_status_block), &msg[8]); // 88 bytes
2788
2789         //post message
2790         writel(m, pHba->post_port);
2791         wmb();
2792
2793         while(status_block[87]!=0xff){
2794                 if(time_after(jiffies,timeout)){
2795                         printk(KERN_ERR"dpti%d: Get status timeout.\n",
2796                                 pHba->unit);
2797                         return -ETIMEDOUT;
2798                 }
2799                 rmb();
2800                 schedule_timeout_uninterruptible(1);
2801         }
2802
2803         // Set up our number of outbound and inbound messages
2804         pHba->post_fifo_size = pHba->status_block->max_inbound_frames;
2805         if (pHba->post_fifo_size > MAX_TO_IOP_MESSAGES) {
2806                 pHba->post_fifo_size = MAX_TO_IOP_MESSAGES;
2807         }
2808
2809         pHba->reply_fifo_size = pHba->status_block->max_outbound_frames;
2810         if (pHba->reply_fifo_size > MAX_FROM_IOP_MESSAGES) {
2811                 pHba->reply_fifo_size = MAX_FROM_IOP_MESSAGES;
2812         }
2813
2814         // Calculate the Scatter Gather list size
2815         pHba->sg_tablesize = (pHba->status_block->inbound_frame_size * 4 -40)/ sizeof(struct sg_simple_element);
2816         if (pHba->sg_tablesize > SG_LIST_ELEMENTS) {
2817                 pHba->sg_tablesize = SG_LIST_ELEMENTS;
2818         }
2819
2820
2821 #ifdef DEBUG
2822         printk("dpti%d: State = ",pHba->unit);
2823         switch(pHba->status_block->iop_state) {
2824                 case 0x01:
2825                         printk("INIT\n");
2826                         break;
2827                 case 0x02:
2828                         printk("RESET\n");
2829                         break;
2830                 case 0x04:
2831                         printk("HOLD\n");
2832                         break;
2833                 case 0x05:
2834                         printk("READY\n");
2835                         break;
2836                 case 0x08:
2837                         printk("OPERATIONAL\n");
2838                         break;
2839                 case 0x10:
2840                         printk("FAILED\n");
2841                         break;
2842                 case 0x11:
2843                         printk("FAULTED\n");
2844                         break;
2845                 default:
2846                         printk("%x (unknown!!)\n",pHba->status_block->iop_state);
2847         }
2848 #endif
2849         return 0;
2850 }
2851
2852 /*
2853  * Get the IOP's Logical Configuration Table
2854  */
2855 static int adpt_i2o_lct_get(adpt_hba* pHba)
2856 {
2857         u32 msg[8];
2858         int ret;
2859         u32 buf[16];
2860
2861         if ((pHba->lct_size == 0) || (pHba->lct == NULL)){
2862                 pHba->lct_size = pHba->status_block->expected_lct_size;
2863         }
2864         do {
2865                 if (pHba->lct == NULL) {
2866                         pHba->lct = kmalloc(pHba->lct_size, GFP_KERNEL|ADDR32);
2867                         if(pHba->lct == NULL) {
2868                                 printk(KERN_CRIT "%s: Lct Get failed. Out of memory.\n",
2869                                         pHba->name);
2870                                 return -ENOMEM;
2871                         }
2872                 }
2873                 memset(pHba->lct, 0, pHba->lct_size);
2874
2875                 msg[0] = EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6;
2876                 msg[1] = I2O_CMD_LCT_NOTIFY<<24 | HOST_TID<<12 | ADAPTER_TID;
2877                 msg[2] = 0;
2878                 msg[3] = 0;
2879                 msg[4] = 0xFFFFFFFF;    /* All devices */
2880                 msg[5] = 0x00000000;    /* Report now */
2881                 msg[6] = 0xD0000000|pHba->lct_size;
2882                 msg[7] = virt_to_bus(pHba->lct);
2883
2884                 if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 360))) {
2885                         printk(KERN_ERR "%s: LCT Get failed (status=%#10x.\n",
2886                                 pHba->name, ret);
2887                         printk(KERN_ERR"Adaptec: Error Reading Hardware.\n");
2888                         return ret;
2889                 }
2890
2891                 if ((pHba->lct->table_size << 2) > pHba->lct_size) {
2892                         pHba->lct_size = pHba->lct->table_size << 2;
2893                         kfree(pHba->lct);
2894                         pHba->lct = NULL;
2895                 }
2896         } while (pHba->lct == NULL);
2897
2898         PDEBUG("%s: Hardware resource table read.\n", pHba->name);
2899
2900
2901         // I2O_DPT_EXEC_IOP_BUFFERS_GROUP_NO;
2902         if(adpt_i2o_query_scalar(pHba, 0 , 0x8000, -1, buf, sizeof(buf))>=0) {
2903                 pHba->FwDebugBufferSize = buf[1];
2904                 pHba->FwDebugBuffer_P    = pHba->base_addr_virt + buf[0];
2905                 pHba->FwDebugFlags_P     = pHba->FwDebugBuffer_P + FW_DEBUG_FLAGS_OFFSET;
2906                 pHba->FwDebugBLEDvalue_P = pHba->FwDebugBuffer_P + FW_DEBUG_BLED_OFFSET;
2907                 pHba->FwDebugBLEDflag_P  = pHba->FwDebugBLEDvalue_P + 1;
2908                 pHba->FwDebugStrLength_P = pHba->FwDebugBuffer_P + FW_DEBUG_STR_LENGTH_OFFSET;
2909                 pHba->FwDebugBuffer_P += buf[2];
2910                 pHba->FwDebugFlags = 0;
2911         }
2912
2913         return 0;
2914 }
2915
2916 static int adpt_i2o_build_sys_table(void)
2917 {
2918         adpt_hba* pHba = NULL;
2919         int count = 0;
2920
2921         sys_tbl_len = sizeof(struct i2o_sys_tbl) +      // Header + IOPs
2922                                 (hba_count) * sizeof(struct i2o_sys_tbl_entry);
2923
2924         kfree(sys_tbl);
2925
2926         sys_tbl = kzalloc(sys_tbl_len, GFP_KERNEL|ADDR32);
2927         if (!sys_tbl) {
2928                 printk(KERN_WARNING "SysTab Set failed. Out of memory.\n");
2929                 return -ENOMEM;
2930         }
2931
2932         sys_tbl->num_entries = hba_count;
2933         sys_tbl->version = I2OVERSION;
2934         sys_tbl->change_ind = sys_tbl_ind++;
2935
2936         for(pHba = hba_chain; pHba; pHba = pHba->next) {
2937                 // Get updated Status Block so we have the latest information
2938                 if (adpt_i2o_status_get(pHba)) {
2939                         sys_tbl->num_entries--;
2940                         continue; // try next one
2941                 }
2942
2943                 sys_tbl->iops[count].org_id = pHba->status_block->org_id;
2944                 sys_tbl->iops[count].iop_id = pHba->unit + 2;
2945                 sys_tbl->iops[count].seg_num = 0;
2946                 sys_tbl->iops[count].i2o_version = pHba->status_block->i2o_version;
2947                 sys_tbl->iops[count].iop_state = pHba->status_block->iop_state;
2948                 sys_tbl->iops[count].msg_type = pHba->status_block->msg_type;
2949                 sys_tbl->iops[count].frame_size = pHba->status_block->inbound_frame_size;
2950                 sys_tbl->iops[count].last_changed = sys_tbl_ind - 1; // ??
2951                 sys_tbl->iops[count].iop_capabilities = pHba->status_block->iop_capabilities;
2952                 sys_tbl->iops[count].inbound_low = (u32)virt_to_bus(pHba->post_port);
2953                 sys_tbl->iops[count].inbound_high = (u32)((u64)virt_to_bus(pHba->post_port)>>32);
2954
2955                 count++;
2956         }
2957
2958 #ifdef DEBUG
2959 {
2960         u32 *table = (u32*)sys_tbl;
2961         printk(KERN_DEBUG"sys_tbl_len=%d in 32bit words\n",(sys_tbl_len >>2));
2962         for(count = 0; count < (sys_tbl_len >>2); count++) {
2963                 printk(KERN_INFO "sys_tbl[%d] = %0#10x\n",
2964                         count, table[count]);
2965         }
2966 }
2967 #endif
2968
2969         return 0;
2970 }
2971
2972
2973 /*
2974  *       Dump the information block associated with a given unit (TID)
2975  */
2976
2977 static void adpt_i2o_report_hba_unit(adpt_hba* pHba, struct i2o_device *d)
2978 {
2979         char buf[64];
2980         int unit = d->lct_data.tid;
2981
2982         printk(KERN_INFO "TID %3.3d ", unit);
2983
2984         if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 3, buf, 16)>=0)
2985         {
2986                 buf[16]=0;
2987                 printk(" Vendor: %-12.12s", buf);
2988         }
2989         if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 4, buf, 16)>=0)
2990         {
2991                 buf[16]=0;
2992                 printk(" Device: %-12.12s", buf);
2993         }
2994         if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 6, buf, 8)>=0)
2995         {
2996                 buf[8]=0;
2997                 printk(" Rev: %-12.12s\n", buf);
2998         }
2999 #ifdef DEBUG
3000          printk(KERN_INFO "\tClass: %.21s\n", adpt_i2o_get_class_name(d->lct_data.class_id));
3001          printk(KERN_INFO "\tSubclass: 0x%04X\n", d->lct_data.sub_class);
3002          printk(KERN_INFO "\tFlags: ");
3003
3004          if(d->lct_data.device_flags&(1<<0))
3005                   printk("C");       // ConfigDialog requested
3006          if(d->lct_data.device_flags&(1<<1))
3007                   printk("U");       // Multi-user capable
3008          if(!(d->lct_data.device_flags&(1<<4)))
3009                   printk("P");       // Peer service enabled!
3010          if(!(d->lct_data.device_flags&(1<<5)))
3011                   printk("M");       // Mgmt service enabled!
3012          printk("\n");
3013 #endif
3014 }
3015
3016 #ifdef DEBUG
3017 /*
3018  *      Do i2o class name lookup
3019  */
3020 static const char *adpt_i2o_get_class_name(int class)
3021 {
3022         int idx = 16;
3023         static char *i2o_class_name[] = {
3024                 "Executive",
3025                 "Device Driver Module",
3026                 "Block Device",
3027                 "Tape Device",
3028                 "LAN Interface",
3029                 "WAN Interface",
3030                 "Fibre Channel Port",
3031                 "Fibre Channel Device",
3032                 "SCSI Device",
3033                 "ATE Port",
3034                 "ATE Device",
3035                 "Floppy Controller",
3036                 "Floppy Device",
3037                 "Secondary Bus Port",
3038                 "Peer Transport Agent",
3039                 "Peer Transport",
3040                 "Unknown"
3041         };
3042
3043         switch(class&0xFFF) {
3044         case I2O_CLASS_EXECUTIVE:
3045                 idx = 0; break;
3046         case I2O_CLASS_DDM:
3047                 idx = 1; break;
3048         case I2O_CLASS_RANDOM_BLOCK_STORAGE:
3049                 idx = 2; break;
3050         case I2O_CLASS_SEQUENTIAL_STORAGE:
3051                 idx = 3; break;
3052         case I2O_CLASS_LAN:
3053                 idx = 4; break;
3054         case I2O_CLASS_WAN:
3055                 idx = 5; break;
3056         case I2O_CLASS_FIBRE_CHANNEL_PORT:
3057                 idx = 6; break;
3058         case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL:
3059                 idx = 7; break;
3060         case I2O_CLASS_SCSI_PERIPHERAL:
3061                 idx = 8; break;
3062         case I2O_CLASS_ATE_PORT:
3063                 idx = 9; break;
3064         case I2O_CLASS_ATE_PERIPHERAL:
3065                 idx = 10; break;
3066         case I2O_CLASS_FLOPPY_CONTROLLER:
3067                 idx = 11; break;
3068         case I2O_CLASS_FLOPPY_DEVICE:
3069                 idx = 12; break;
3070         case I2O_CLASS_BUS_ADAPTER_PORT:
3071                 idx = 13; break;
3072         case I2O_CLASS_PEER_TRANSPORT_AGENT:
3073                 idx = 14; break;
3074         case I2O_CLASS_PEER_TRANSPORT:
3075                 idx = 15; break;
3076         }
3077         return i2o_class_name[idx];
3078 }
3079 #endif
3080
3081
3082 static s32 adpt_i2o_hrt_get(adpt_hba* pHba)
3083 {
3084         u32 msg[6];
3085         int ret, size = sizeof(i2o_hrt);
3086
3087         do {
3088                 if (pHba->hrt == NULL) {
3089                         pHba->hrt=kmalloc(size, GFP_KERNEL|ADDR32);
3090                         if (pHba->hrt == NULL) {
3091                                 printk(KERN_CRIT "%s: Hrt Get failed; Out of memory.\n", pHba->name);
3092                                 return -ENOMEM;
3093                         }
3094                 }
3095
3096                 msg[0]= SIX_WORD_MSG_SIZE| SGL_OFFSET_4;
3097                 msg[1]= I2O_CMD_HRT_GET<<24 | HOST_TID<<12 | ADAPTER_TID;
3098                 msg[2]= 0;
3099                 msg[3]= 0;
3100                 msg[4]= (0xD0000000 | size);    /* Simple transaction */
3101                 msg[5]= virt_to_bus(pHba->hrt);   /* Dump it here */
3102
3103                 if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg),20))) {
3104                         printk(KERN_ERR "%s: Unable to get HRT (status=%#10x)\n", pHba->name, ret);
3105                         return ret;
3106                 }
3107
3108                 if (pHba->hrt->num_entries * pHba->hrt->entry_len << 2 > size) {
3109                         size = pHba->hrt->num_entries * pHba->hrt->entry_len << 2;
3110                         kfree(pHba->hrt);
3111                         pHba->hrt = NULL;
3112                 }
3113         } while(pHba->hrt == NULL);
3114         return 0;
3115 }
3116
3117 /*
3118  *       Query one scalar group value or a whole scalar group.
3119  */
3120 static int adpt_i2o_query_scalar(adpt_hba* pHba, int tid,
3121                         int group, int field, void *buf, int buflen)
3122 {
3123         u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field };
3124         u8 *resblk;
3125
3126         int size;
3127
3128         /* 8 bytes for header */
3129         resblk = kmalloc(sizeof(u8) * (8+buflen), GFP_KERNEL|ADDR32);
3130         if (resblk == NULL) {
3131                 printk(KERN_CRIT "%s: query scalar failed; Out of memory.\n", pHba->name);
3132                 return -ENOMEM;
3133         }
3134
3135         if (field == -1)                /* whole group */
3136                         opblk[4] = -1;
3137
3138         size = adpt_i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET, pHba, tid,
3139                 opblk, sizeof(opblk), resblk, sizeof(u8)*(8+buflen));
3140         if (size == -ETIME) {
3141                 printk(KERN_WARNING "%s: issue params failed; Timed out.\n", pHba->name);
3142                 return -ETIME;
3143         } else if (size == -EINTR) {
3144                 printk(KERN_WARNING "%s: issue params failed; Interrupted.\n", pHba->name);
3145                 return -EINTR;
3146         }
3147
3148         memcpy(buf, resblk+8, buflen);  /* cut off header */
3149
3150         kfree(resblk);
3151         if (size < 0)
3152                 return size;
3153
3154         return buflen;
3155 }
3156
3157
3158 /*      Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET
3159  *
3160  *      This function can be used for all UtilParamsGet/Set operations.
3161  *      The OperationBlock is given in opblk-buffer,
3162  *      and results are returned in resblk-buffer.
3163  *      Note that the minimum sized resblk is 8 bytes and contains
3164  *      ResultCount, ErrorInfoSize, BlockStatus and BlockSize.
3165  */
3166 static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid,
3167                   void *opblk, int oplen, void *resblk, int reslen)
3168 {
3169         u32 msg[9];
3170         u32 *res = (u32 *)resblk;
3171         int wait_status;
3172
3173         msg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_5;
3174         msg[1] = cmd << 24 | HOST_TID << 12 | tid;
3175         msg[2] = 0;
3176         msg[3] = 0;
3177         msg[4] = 0;
3178         msg[5] = 0x54000000 | oplen;    /* OperationBlock */
3179         msg[6] = virt_to_bus(opblk);
3180         msg[7] = 0xD0000000 | reslen;   /* ResultBlock */
3181         msg[8] = virt_to_bus(resblk);
3182
3183         if ((wait_status = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 20))) {
3184                 printk("adpt_i2o_issue_params: post_wait failed (%p)\n", resblk);
3185                 return wait_status;     /* -DetailedStatus */
3186         }
3187
3188         if (res[1]&0x00FF0000) {        /* BlockStatus != SUCCESS */
3189                 printk(KERN_WARNING "%s: %s - Error:\n  ErrorInfoSize = 0x%02x, "
3190                         "BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
3191                         pHba->name,
3192                         (cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET"
3193                                                          : "PARAMS_GET",
3194                         res[1]>>24, (res[1]>>16)&0xFF, res[1]&0xFFFF);
3195                 return -((res[1] >> 16) & 0xFF); /* -BlockStatus */
3196         }
3197
3198          return 4 + ((res[1] & 0x0000FFFF) << 2); /* bytes used in resblk */
3199 }
3200
3201
3202 static s32 adpt_i2o_quiesce_hba(adpt_hba* pHba)
3203 {
3204         u32 msg[4];
3205         int ret;
3206
3207         adpt_i2o_status_get(pHba);
3208
3209         /* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */
3210
3211         if((pHba->status_block->iop_state != ADAPTER_STATE_READY) &&
3212            (pHba->status_block->iop_state != ADAPTER_STATE_OPERATIONAL)){
3213                 return 0;
3214         }
3215
3216         msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
3217         msg[1] = I2O_CMD_SYS_QUIESCE<<24|HOST_TID<<12|ADAPTER_TID;
3218         msg[2] = 0;
3219         msg[3] = 0;
3220
3221         if((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) {
3222                 printk(KERN_INFO"dpti%d: Unable to quiesce (status=%#x).\n",
3223                                 pHba->unit, -ret);
3224         } else {
3225                 printk(KERN_INFO"dpti%d: Quiesced.\n",pHba->unit);
3226         }
3227
3228         adpt_i2o_status_get(pHba);
3229         return ret;
3230 }
3231
3232
3233 /*
3234  * Enable IOP. Allows the IOP to resume external operations.
3235  */
3236 static int adpt_i2o_enable_hba(adpt_hba* pHba)
3237 {
3238         u32 msg[4];
3239         int ret;
3240
3241         adpt_i2o_status_get(pHba);
3242         if(!pHba->status_block){
3243                 return -ENOMEM;
3244         }
3245         /* Enable only allowed on READY state */
3246         if(pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL)
3247                 return 0;
3248
3249         if(pHba->status_block->iop_state != ADAPTER_STATE_READY)
3250                 return -EINVAL;
3251
3252         msg[0]=FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
3253         msg[1]=I2O_CMD_SYS_ENABLE<<24|HOST_TID<<12|ADAPTER_TID;
3254         msg[2]= 0;
3255         msg[3]= 0;
3256
3257         if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) {
3258                 printk(KERN_WARNING"%s: Could not enable (status=%#10x).\n",
3259                         pHba->name, ret);
3260         } else {
3261                 PDEBUG("%s: Enabled.\n", pHba->name);
3262         }
3263
3264         adpt_i2o_status_get(pHba);
3265         return ret;
3266 }
3267
3268
3269 static int adpt_i2o_systab_send(adpt_hba* pHba)
3270 {
3271          u32 msg[12];
3272          int ret;
3273
3274         msg[0] = I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6;
3275         msg[1] = I2O_CMD_SYS_TAB_SET<<24 | HOST_TID<<12 | ADAPTER_TID;
3276         msg[2] = 0;
3277         msg[3] = 0;
3278         msg[4] = (0<<16) | ((pHba->unit+2) << 12); /* Host 0 IOP ID (unit + 2) */
3279         msg[5] = 0;                                /* Segment 0 */
3280
3281         /*
3282          * Provide three SGL-elements:
3283          * System table (SysTab), Private memory space declaration and
3284          * Private i/o space declaration
3285          */
3286         msg[6] = 0x54000000 | sys_tbl_len;
3287         msg[7] = virt_to_phys(sys_tbl);
3288         msg[8] = 0x54000000 | 0;
3289         msg[9] = 0;
3290         msg[10] = 0xD4000000 | 0;
3291         msg[11] = 0;
3292
3293         if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 120))) {
3294                 printk(KERN_INFO "%s: Unable to set SysTab (status=%#10x).\n",
3295                         pHba->name, ret);
3296         }
3297 #ifdef DEBUG
3298         else {
3299                 PINFO("%s: SysTab set.\n", pHba->name);
3300         }
3301 #endif
3302
3303         return ret;
3304  }
3305
3306
3307 /*============================================================================
3308  *
3309  *============================================================================
3310  */
3311
3312
3313 #ifdef UARTDELAY
3314
3315 static static void adpt_delay(int millisec)
3316 {
3317         int i;
3318         for (i = 0; i < millisec; i++) {
3319                 udelay(1000);   /* delay for one millisecond */
3320         }
3321 }
3322
3323 #endif
3324
3325 static struct scsi_host_template driver_template = {
3326         .name                   = "dpt_i2o",
3327         .proc_name              = "dpt_i2o",
3328         .proc_info              = adpt_proc_info,
3329         .detect                 = adpt_detect,
3330         .release                = adpt_release,
3331         .info                   = adpt_info,
3332         .queuecommand           = adpt_queue,
3333         .eh_abort_handler       = adpt_abort,
3334         .eh_device_reset_handler = adpt_device_reset,
3335         .eh_bus_reset_handler   = adpt_bus_reset,
3336         .eh_host_reset_handler  = adpt_reset,
3337         .bios_param             = adpt_bios_param,
3338         .slave_configure        = adpt_slave_configure,
3339         .can_queue              = MAX_TO_IOP_MESSAGES,
3340         .this_id                = 7,
3341         .cmd_per_lun            = 1,
3342         .use_clustering         = ENABLE_CLUSTERING,
3343 };
3344 #include "scsi_module.c"
3345 MODULE_LICENSE("GPL");