drivers/char/rio/rioboot.c

   1 /*
   2 ** -----------------------------------------------------------------------------
   3 **
   4 **  Perle Specialix driver for Linux
   5 **  Ported from existing RIO Driver for SCO sources.
   6  *
   7  *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
   8  *
   9  *      This program is free software; you can redistribute it and/or modify
  10  *      it under the terms of the GNU General Public License as published by
  11  *      the Free Software Foundation; either version 2 of the License, or
  12  *      (at your option) any later version.
  13  *
  14  *      This program is distributed in the hope that it will be useful,
  15  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *      GNU General Public License for more details.
  18  *
  19  *      You should have received a copy of the GNU General Public License
  20  *      along with this program; if not, write to the Free Software
  21  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 **
  23 **      Module          : rioboot.c
  24 **      SID             : 1.3
  25 **      Last Modified   : 11/6/98 10:33:36
  26 **      Retrieved       : 11/6/98 10:33:48
  27 **
  28 **  ident @(#)rioboot.c 1.3
  29 **
  30 ** -----------------------------------------------------------------------------
  31 */
  32
  33 #include <linux/module.h>
  34 #include <linux/slab.h>
  35 #include <linux/termios.h>
  36 #include <linux/serial.h>
  37 #include <linux/vmalloc.h>
  38 #include <linux/generic_serial.h>
  39 #include <linux/errno.h>
  40 #include <linux/interrupt.h>
  41 #include <linux/delay.h>
  42 #include <asm/io.h>
  43 #include <asm/system.h>
  44 #include <asm/string.h>
  45 #include <asm/uaccess.h>
  46
  47
  48 #include "linux_compat.h"
  49 #include "rio_linux.h"
  50 #include "pkt.h"
  51 #include "daemon.h"
  52 #include "rio.h"
  53 #include "riospace.h"
  54 #include "cmdpkt.h"
  55 #include "map.h"
  56 #include "rup.h"
  57 #include "port.h"
  58 #include "riodrvr.h"
  59 #include "rioinfo.h"
  60 #include "func.h"
  61 #include "errors.h"
  62 #include "pci.h"
  63
  64 #include "parmmap.h"
  65 #include "unixrup.h"
  66 #include "board.h"
  67 #include "host.h"
  68 #include "phb.h"
  69 #include "link.h"
  70 #include "cmdblk.h"
  71 #include "route.h"
  72
  73 static int RIOBootComplete(struct rio_info *p, struct Host *HostP, unsigned int Rup, struct PktCmd __iomem *PktCmdP);
  74
  75 static const unsigned char RIOAtVec2Ctrl[] = {
  76         /* 0 */ INTERRUPT_DISABLE,
  77         /* 1 */ INTERRUPT_DISABLE,
  78         /* 2 */ INTERRUPT_DISABLE,
  79         /* 3 */ INTERRUPT_DISABLE,
  80         /* 4 */ INTERRUPT_DISABLE,
  81         /* 5 */ INTERRUPT_DISABLE,
  82         /* 6 */ INTERRUPT_DISABLE,
  83         /* 7 */ INTERRUPT_DISABLE,
  84         /* 8 */ INTERRUPT_DISABLE,
  85         /* 9 */ IRQ_9 | INTERRUPT_ENABLE,
  86         /* 10 */ INTERRUPT_DISABLE,
  87         /* 11 */ IRQ_11 | INTERRUPT_ENABLE,
  88         /* 12 */ IRQ_12 | INTERRUPT_ENABLE,
  89         /* 13 */ INTERRUPT_DISABLE,
  90         /* 14 */ INTERRUPT_DISABLE,
  91         /* 15 */ IRQ_15 | INTERRUPT_ENABLE
  92 };
  93
  94 /**
  95  *      RIOBootCodeRTA          -       Load RTA boot code
  96  *      @p: RIO to load
  97  *      @rbp: Download descriptor
  98  *
  99  *      Called when the user process initiates booting of the card firmware.
 100  *      Lads the firmware
 101  */
 102
 103 int RIOBootCodeRTA(struct rio_info *p, struct DownLoad * rbp)
 104 {
 105         int offset;
 106
 107         func_enter();
 108
 109         rio_dprintk(RIO_DEBUG_BOOT, "Data at user address %p\n", rbp->DataP);
 110
 111         /*
 112          ** Check that we have set asside enough memory for this
 113          */
 114         if (rbp->Count > SIXTY_FOUR_K) {
 115                 rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code Too Large!\n");
 116                 p->RIOError.Error = HOST_FILE_TOO_LARGE;
 117                 func_exit();
 118                 return -ENOMEM;
 119         }
 120
 121         if (p->RIOBooting) {
 122                 rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code : BUSY BUSY BUSY!\n");
 123                 p->RIOError.Error = BOOT_IN_PROGRESS;
 124                 func_exit();
 125                 return -EBUSY;
 126         }
 127
 128         /*
 129          ** The data we load in must end on a (RTA_BOOT_DATA_SIZE) byte boundary,
 130          ** so calculate how far we have to move the data up the buffer
 131          ** to achieve this.
 132          */
 133         offset = (RTA_BOOT_DATA_SIZE - (rbp->Count % RTA_BOOT_DATA_SIZE)) % RTA_BOOT_DATA_SIZE;
 134
 135         /*
 136          ** Be clean, and clear the 'unused' portion of the boot buffer,
 137          ** because it will (eventually) be part of the Rta run time environment
 138          ** and so should be zeroed.
 139          */
 140         memset(p->RIOBootPackets, 0, offset);
 141
 142         /*
 143          ** Copy the data from user space into the array
 144          */
 145
 146         if (copy_from_user(((u8 *)p->RIOBootPackets) + offset, rbp->DataP, rbp->Count)) {
 147                 rio_dprintk(RIO_DEBUG_BOOT, "Bad data copy from user space\n");
 148                 p->RIOError.Error = COPYIN_FAILED;
 149                 func_exit();
 150                 return -EFAULT;
 151         }
 152
 153         /*
 154          ** Make sure that our copy of the size includes that offset we discussed
 155          ** earlier.
 156          */
 157         p->RIONumBootPkts = (rbp->Count + offset) / RTA_BOOT_DATA_SIZE;
 158         p->RIOBootCount = rbp->Count;
 159
 160         func_exit();
 161         return 0;
 162 }
 163
 164 /**
 165  *      rio_start_card_running          -       host card start
 166  *      @HostP: The RIO to kick off
 167  *
 168  *      Start a RIO processor unit running. Encapsulates the knowledge
 169  *      of the card type.
 170  */
 171
 172 void rio_start_card_running(struct Host *HostP)
 173 {
 174         switch (HostP->Type) {
 175         case RIO_AT:
 176                 rio_dprintk(RIO_DEBUG_BOOT, "Start ISA card running\n");
 177                 writeb(BOOT_FROM_RAM | EXTERNAL_BUS_ON | HostP->Mode | RIOAtVec2Ctrl[HostP->Ivec & 0xF], &HostP->Control);
 178                 break;
 179         case RIO_PCI:
 180                 /*
 181                  ** PCI is much the same as MCA. Everything is once again memory
 182                  ** mapped, so we are writing to memory registers instead of io
 183                  ** ports.
 184                  */
 185                 rio_dprintk(RIO_DEBUG_BOOT, "Start PCI card running\n");
 186                 writeb(PCITpBootFromRam | PCITpBusEnable | HostP->Mode, &HostP->Control);
 187                 break;
 188         default:
 189                 rio_dprintk(RIO_DEBUG_BOOT, "Unknown host type %d\n", HostP->Type);
 190                 break;
 191         }
 192         return;
 193 }
 194
 195 /*
 196 ** Load in the host boot code - load it directly onto all halted hosts
 197 ** of the correct type.
 198 **
 199 ** Put your rubber pants on before messing with this code - even the magic
 200 ** numbers have trouble understanding what they are doing here.
 201 */
 202
 203 int RIOBootCodeHOST(struct rio_info *p, struct DownLoad *rbp)
 204 {
 205         struct Host *HostP;
 206         u8 __iomem *Cad;
 207         PARM_MAP __iomem *ParmMapP;
 208         int RupN;
 209         int PortN;
 210         unsigned int host;
 211         u8 __iomem *StartP;
 212         u8 __iomem *DestP;
 213         int wait_count;
 214         u16 OldParmMap;
 215         u16 offset;             /* It is very important that this is a u16 */
 216         u8 *DownCode = NULL;
 217         unsigned long flags;
 218
 219         HostP = NULL;           /* Assure the compiler we've initialized it */
 220
 221
 222         /* Walk the hosts */
 223         for (host = 0; host < p->RIONumHosts; host++) {
 224                 rio_dprintk(RIO_DEBUG_BOOT, "Attempt to boot host %d\n", host);
 225                 HostP = &p->RIOHosts[host];
 226
 227                 rio_dprintk(RIO_DEBUG_BOOT, "Host Type = 0x%x, Mode = 0x%x, IVec = 0x%x\n", HostP->Type, HostP->Mode, HostP->Ivec);
 228
 229                 /* Don't boot hosts already running */
 230                 if ((HostP->Flags & RUN_STATE) != RC_WAITING) {
 231                         rio_dprintk(RIO_DEBUG_BOOT, "%s %d already running\n", "Host", host);
 232                         continue;
 233                 }
 234
 235                 /*
 236                  ** Grab a pointer to the card (ioremapped)
 237                  */
 238                 Cad = HostP->Caddr;
 239
 240                 /*
 241                  ** We are going to (try) and load in rbp->Count bytes.
 242                  ** The last byte will reside at p->RIOConf.HostLoadBase-1;
 243                  ** Therefore, we need to start copying at address
 244                  ** (caddr+p->RIOConf.HostLoadBase-rbp->Count)
 245                  */
 246                 StartP = &Cad[p->RIOConf.HostLoadBase - rbp->Count];
 247
 248                 rio_dprintk(RIO_DEBUG_BOOT, "kernel virtual address for host is %p\n", Cad);
 249                 rio_dprintk(RIO_DEBUG_BOOT, "kernel virtual address for download is %p\n", StartP);
 250                 rio_dprintk(RIO_DEBUG_BOOT, "host loadbase is 0x%x\n", p->RIOConf.HostLoadBase);
 251                 rio_dprintk(RIO_DEBUG_BOOT, "size of download is 0x%x\n", rbp->Count);
 252
 253                 /* Make sure it fits */
 254                 if (p->RIOConf.HostLoadBase < rbp->Count) {
 255                         rio_dprintk(RIO_DEBUG_BOOT, "Bin too large\n");
 256                         p->RIOError.Error = HOST_FILE_TOO_LARGE;
 257                         func_exit();
 258                         return -EFBIG;
 259                 }
 260                 /*
 261                  ** Ensure that the host really is stopped.
 262                  ** Disable it's external bus & twang its reset line.
 263                  */
 264                 RIOHostReset(HostP->Type, HostP->CardP, HostP->Slot);
 265
 266                 /*
 267                  ** Copy the data directly from user space to the SRAM.
 268                  ** This ain't going to be none too clever if the download
 269                  ** code is bigger than this segment.
 270                  */
 271                 rio_dprintk(RIO_DEBUG_BOOT, "Copy in code\n");
 272
 273                 /* Buffer to local memory as we want to use I/O space and
 274                    some cards only do 8 or 16 bit I/O */
 275
 276                 DownCode = vmalloc(rbp->Count);
 277                 if (!DownCode) {
 278                         p->RIOError.Error = NOT_ENOUGH_CORE_FOR_PCI_COPY;
 279                         func_exit();
 280                         return -ENOMEM;
 281                 }
 282                 if (copy_from_user(DownCode, rbp->DataP, rbp->Count)) {
 283                         kfree(DownCode);
 284                         p->RIOError.Error = COPYIN_FAILED;
 285                         func_exit();
 286                         return -EFAULT;
 287                 }
 288                 HostP->Copy(DownCode, StartP, rbp->Count);
 289                 vfree(DownCode);
 290
 291                 rio_dprintk(RIO_DEBUG_BOOT, "Copy completed\n");
 292
 293                 /*
 294                  **                     S T O P !
 295                  **
 296                  ** Upto this point the code has been fairly rational, and possibly
 297                  ** even straight forward. What follows is a pile of crud that will
 298                  ** magically turn into six bytes of transputer assembler. Normally
 299                  ** you would expect an array or something, but, being me, I have
 300                  ** chosen [been told] to use a technique whereby the startup code
 301                  ** will be correct if we change the loadbase for the code. Which
 302                  ** brings us onto another issue - the loadbase is the *end* of the
 303                  ** code, not the start.
 304                  **
 305                  ** If I were you I wouldn't start from here.
 306                  */
 307
 308                 /*
 309                  ** We now need to insert a short boot section into
 310                  ** the memory at the end of Sram2. This is normally (de)composed
 311                  ** of the last eight bytes of the download code. The
 312                  ** download has been assembled/compiled to expect to be
 313                  ** loaded from 0x7FFF downwards. We have loaded it
 314                  ** at some other address. The startup code goes into the small
 315                  ** ram window at Sram2, in the last 8 bytes, which are really
 316                  ** at addresses 0x7FF8-0x7FFF.
 317                  **
 318                  ** If the loadbase is, say, 0x7C00, then we need to branch to
 319                  ** address 0x7BFE to run the host.bin startup code. We assemble
 320                  ** this jump manually.
 321                  **
 322                  ** The two byte sequence 60 08 is loaded into memory at address
 323                  ** 0x7FFE,F. This is a local branch to location 0x7FF8 (60 is nfix 0,
 324                  ** which adds '0' to the .O register, complements .O, and then shifts
 325                  ** it left by 4 bit positions, 08 is a jump .O+8 instruction. This will
 326                  ** add 8 to .O (which was 0xFFF0), and will branch RELATIVE to the new
 327                  ** location. Now, the branch starts from the value of .PC (or .IP or
 328                  ** whatever the bloody register is called on this chip), and the .PC
 329                  ** will be pointing to the location AFTER the branch, in this case
 330                  ** .PC == 0x8000, so the branch will be to 0x8000+0xFFF8 = 0x7FF8.
 331                  **
 332                  ** A long branch is coded at 0x7FF8. This consists of loading a four
 333                  ** byte offset into .O using nfix (as above) and pfix operators. The
 334                  ** pfix operates in exactly the same way as the nfix operator, but
 335                  ** without the complement operation. The offset, of course, must be
 336                  ** relative to the address of the byte AFTER the branch instruction,
 337                  ** which will be (urm) 0x7FFC, so, our final destination of the branch
 338                  ** (loadbase-2), has to be reached from here. Imagine that the loadbase
 339                  ** is 0x7C00 (which it is), then we will need to branch to 0x7BFE (which
 340                  ** is the first byte of the initial two byte short local branch of the
 341                  ** download code).
 342                  **
 343                  ** To code a jump from 0x7FFC (which is where the branch will start
 344                  ** from) to 0x7BFE, we will need to branch 0xFC02 bytes (0x7FFC+0xFC02)=
 345                  ** 0x7BFE.
 346                  ** This will be coded as four bytes:
 347                  ** 60 2C 20 02
 348                  ** being nfix .O+0
 349                  **        pfix .O+C
 350                  **        pfix .O+0
 351                  **        jump .O+2
 352                  **
 353                  ** The nfix operator is used, so that the startup code will be
 354                  ** compatible with the whole Tp family. (lies, damn lies, it'll never
 355                  ** work in a month of Sundays).
 356                  **
 357                  ** The nfix nyble is the 1s complement of the nyble value you
 358                  ** want to load - in this case we wanted 'F' so we nfix loaded '0'.
 359                  */
 360
 361
 362                 /*
 363                  ** Dest points to the top 8 bytes of Sram2. The Tp jumps
 364                  ** to 0x7FFE at reset time, and starts executing. This is
 365                  ** a short branch to 0x7FF8, where a long branch is coded.
 366                  */
 367
 368                 DestP = &Cad[0x7FF8];   /* <<<---- READ THE ABOVE COMMENTS */
 369
 370 #define NFIX(N) (0x60 | (N))    /* .O  = (~(.O + N))<<4 */
 371 #define PFIX(N) (0x20 | (N))    /* .O  =   (.O + N)<<4  */
 372 #define JUMP(N) (0x00 | (N))    /* .PC =   .PC + .O      */
 373
 374                 /*
 375                  ** 0x7FFC is the address of the location following the last byte of
 376                  ** the four byte jump instruction.
 377                  ** READ THE ABOVE COMMENTS
 378                  **
 379                  ** offset is (TO-FROM) % MEMSIZE, but with compound buggering about.
 380                  ** Memsize is 64K for this range of Tp, so offset is a short (unsigned,
 381                  ** cos I don't understand 2's complement).
 382                  */
 383                 offset = (p->RIOConf.HostLoadBase - 2) - 0x7FFC;
 384
 385                 writeb(NFIX(((unsigned short) (~offset) >> (unsigned short) 12) & 0xF), DestP);
 386                 writeb(PFIX((offset >> 8) & 0xF), DestP + 1);
 387                 writeb(PFIX((offset >> 4) & 0xF), DestP + 2);
 388                 writeb(JUMP(offset & 0xF), DestP + 3);
 389
 390                 writeb(NFIX(0), DestP + 6);
 391                 writeb(JUMP(8), DestP + 7);
 392
 393                 rio_dprintk(RIO_DEBUG_BOOT, "host loadbase is 0x%x\n", p->RIOConf.HostLoadBase);
 394                 rio_dprintk(RIO_DEBUG_BOOT, "startup offset is 0x%x\n", offset);
 395
 396                 /*
 397                  ** Flag what is going on
 398                  */
 399                 HostP->Flags &= ~RUN_STATE;
 400                 HostP->Flags |= RC_STARTUP;
 401
 402                 /*
 403                  ** Grab a copy of the current ParmMap pointer, so we
 404                  ** can tell when it has changed.
 405                  */
 406                 OldParmMap = readw(&HostP->__ParmMapR);
 407
 408                 rio_dprintk(RIO_DEBUG_BOOT, "Original parmmap is 0x%x\n", OldParmMap);
 409
 410                 /*
 411                  ** And start it running (I hope).
 412                  ** As there is nothing dodgy or obscure about the
 413                  ** above code, this is guaranteed to work every time.
 414                  */
 415                 rio_dprintk(RIO_DEBUG_BOOT, "Host Type = 0x%x, Mode = 0x%x, IVec = 0x%x\n", HostP->Type, HostP->Mode, HostP->Ivec);
 416
 417                 rio_start_card_running(HostP);
 418
 419                 rio_dprintk(RIO_DEBUG_BOOT, "Set control port\n");
 420
 421                 /*
 422                  ** Now, wait for upto five seconds for the Tp to setup the parmmap
 423                  ** pointer:
 424                  */
 425                 for (wait_count = 0; (wait_count < p->RIOConf.StartupTime) && (readw(&HostP->__ParmMapR) == OldParmMap); wait_count++) {
 426                         rio_dprintk(RIO_DEBUG_BOOT, "Checkout %d, 0x%x\n", wait_count, readw(&HostP->__ParmMapR));
 427                         mdelay(100);
 428
 429                 }
 430
 431                 /*
 432                  ** If the parmmap pointer is unchanged, then the host code
 433                  ** has crashed & burned in a really spectacular way
 434                  */
 435                 if (readw(&HostP->__ParmMapR) == OldParmMap) {
 436                         rio_dprintk(RIO_DEBUG_BOOT, "parmmap 0x%x\n", readw(&HostP->__ParmMapR));
 437                         rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail\n");
 438                         HostP->Flags &= ~RUN_STATE;
 439                         HostP->Flags |= RC_STUFFED;
 440                         RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );
 441                         continue;
 442                 }
 443
 444                 rio_dprintk(RIO_DEBUG_BOOT, "Running 0x%x\n", readw(&HostP->__ParmMapR));
 445
 446                 /*
 447                  ** Well, the board thought it was OK, and setup its parmmap
 448                  ** pointer. For the time being, we will pretend that this
 449                  ** board is running, and check out what the error flag says.
 450                  */
 451
 452                 /*
 453                  ** Grab a 32 bit pointer to the parmmap structure
 454                  */
 455                 ParmMapP = (PARM_MAP __iomem *) RIO_PTR(Cad, readw(&HostP->__ParmMapR));
 456                 rio_dprintk(RIO_DEBUG_BOOT, "ParmMapP : %p\n", ParmMapP);
 457                 ParmMapP = (PARM_MAP __iomem *)(Cad + readw(&HostP->__ParmMapR));
 458                 rio_dprintk(RIO_DEBUG_BOOT, "ParmMapP : %p\n", ParmMapP);
 459
 460                 /*
 461                  ** The links entry should be 0xFFFF; we set it up
 462                  ** with a mask to say how many PHBs to use, and
 463                  ** which links to use.
 464                  */
 465                 if (readw(&ParmMapP->links) != 0xFFFF) {
 466                         rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail %s\n", HostP->Name);
 467                         rio_dprintk(RIO_DEBUG_BOOT, "Links = 0x%x\n", readw(&ParmMapP->links));
 468                         HostP->Flags &= ~RUN_STATE;
 469                         HostP->Flags |= RC_STUFFED;
 470                         RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );
 471                         continue;
 472                 }
 473
 474                 writew(RIO_LINK_ENABLE, &ParmMapP->links);
 475
 476                 /*
 477                  ** now wait for the card to set all the parmmap->XXX stuff
 478                  ** this is a wait of upto two seconds....
 479                  */
 480                 rio_dprintk(RIO_DEBUG_BOOT, "Looking for init_done - %d ticks\n", p->RIOConf.StartupTime);
 481                 HostP->timeout_id = 0;
 482                 for (wait_count = 0; (wait_count < p->RIOConf.StartupTime) && !readw(&ParmMapP->init_done); wait_count++) {
 483                         rio_dprintk(RIO_DEBUG_BOOT, "Waiting for init_done\n");
 484                         mdelay(100);
 485                 }
 486                 rio_dprintk(RIO_DEBUG_BOOT, "OK! init_done!\n");
 487
 488                 if (readw(&ParmMapP->error) != E_NO_ERROR || !readw(&ParmMapP->init_done)) {
 489                         rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail %s\n", HostP->Name);
 490                         rio_dprintk(RIO_DEBUG_BOOT, "Timedout waiting for init_done\n");
 491                         HostP->Flags &= ~RUN_STATE;
 492                         HostP->Flags |= RC_STUFFED;
 493                         RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );
 494                         continue;
 495                 }
 496
 497                 rio_dprintk(RIO_DEBUG_BOOT, "Got init_done\n");
 498
 499                 /*
 500                  ** It runs! It runs!
 501                  */
 502                 rio_dprintk(RIO_DEBUG_BOOT, "Host ID %x Running\n", HostP->UniqueNum);
 503
 504                 /*
 505                  ** set the time period between interrupts.
 506                  */
 507                 writew(p->RIOConf.Timer, &ParmMapP->timer);
 508
 509                 /*
 510                  ** Translate all the 16 bit pointers in the __ParmMapR into
 511                  ** 32 bit pointers for the driver in ioremap space.
 512                  */
 513                 HostP->ParmMapP = ParmMapP;
 514                 HostP->PhbP = (struct PHB __iomem *) RIO_PTR(Cad, readw(&ParmMapP->phb_ptr));
 515                 HostP->RupP = (struct RUP __iomem *) RIO_PTR(Cad, readw(&ParmMapP->rups));
 516                 HostP->PhbNumP = (unsigned short __iomem *) RIO_PTR(Cad, readw(&ParmMapP->phb_num_ptr));
 517                 HostP->LinkStrP = (struct LPB __iomem *) RIO_PTR(Cad, readw(&ParmMapP->link_str_ptr));
 518
 519                 /*
 520                  ** point the UnixRups at the real Rups
 521                  */
 522                 for (RupN = 0; RupN < MAX_RUP; RupN++) {
 523                         HostP->UnixRups[RupN].RupP = &HostP->RupP[RupN];
 524                         HostP->UnixRups[RupN].Id = RupN + 1;
 525                         HostP->UnixRups[RupN].BaseSysPort = NO_PORT;
 526                         spin_lock_init(&HostP->UnixRups[RupN].RupLock);
 527                 }
 528
 529                 for (RupN = 0; RupN < LINKS_PER_UNIT; RupN++) {
 530                         HostP->UnixRups[RupN + MAX_RUP].RupP = &HostP->LinkStrP[RupN].rup;
 531                         HostP->UnixRups[RupN + MAX_RUP].Id = 0;
 532                         HostP->UnixRups[RupN + MAX_RUP].BaseSysPort = NO_PORT;
 533                         spin_lock_init(&HostP->UnixRups[RupN + MAX_RUP].RupLock);
 534                 }
 535
 536                 /*
 537                  ** point the PortP->Phbs at the real Phbs
 538                  */
 539                 for (PortN = p->RIOFirstPortsMapped; PortN < p->RIOLastPortsMapped + PORTS_PER_RTA; PortN++) {
 540                         if (p->RIOPortp[PortN]->HostP == HostP) {
 541                                 struct Port *PortP = p->RIOPortp[PortN];
 542                                 struct PHB __iomem *PhbP;
 543                                 /* int oldspl; */
 544
 545                                 if (!PortP->Mapped)
 546                                         continue;
 547
 548                                 PhbP = &HostP->PhbP[PortP->HostPort];
 549                                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 550
 551                                 PortP->PhbP = PhbP;
 552
 553                                 PortP->TxAdd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_add));
 554                                 PortP->TxStart = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_start));
 555                                 PortP->TxEnd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_end));
 556                                 PortP->RxRemove = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_remove));
 557                                 PortP->RxStart = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_start));
 558                                 PortP->RxEnd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_end));
 559
 560                                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 561                                 /*
 562                                  ** point the UnixRup at the base SysPort
 563                                  */
 564                                 if (!(PortN % PORTS_PER_RTA))
 565                                         HostP->UnixRups[PortP->RupNum].BaseSysPort = PortN;
 566                         }
 567                 }
 568
 569                 rio_dprintk(RIO_DEBUG_BOOT, "Set the card running... \n");
 570                 /*
 571                  ** last thing - show the world that everything is in place
 572                  */
 573                 HostP->Flags &= ~RUN_STATE;
 574                 HostP->Flags |= RC_RUNNING;
 575         }
 576         /*
 577          ** MPX always uses a poller. This is actually patched into the system
 578          ** configuration and called directly from each clock tick.
 579          **
 580          */
 581         p->RIOPolling = 1;
 582
 583         p->RIOSystemUp++;
 584
 585         rio_dprintk(RIO_DEBUG_BOOT, "Done everything %x\n", HostP->Ivec);
 586         func_exit();
 587         return 0;
 588 }
 589
 590
 591
 592 /**
 593  *      RIOBootRup              -       Boot an RTA
 594  *      @p: rio we are working with
 595  *      @Rup: Rup number
 596  *      @HostP: host object
 597  *      @PacketP: packet to use
 598  *
 599  *      If we have successfully processed this boot, then
 600  *      return 1. If we havent, then return 0.
 601  */
 602
 603 int RIOBootRup(struct rio_info *p, unsigned int Rup, struct Host *HostP, struct PKT __iomem *PacketP)
 604 {
 605         struct PktCmd __iomem *PktCmdP = (struct PktCmd __iomem *) PacketP->data;
 606         struct PktCmd_M *PktReplyP;
 607         struct CmdBlk *CmdBlkP;
 608         unsigned int sequence;
 609
 610         /*
 611          ** If we haven't been told what to boot, we can't boot it.
 612          */
 613         if (p->RIONumBootPkts == 0) {
 614                 rio_dprintk(RIO_DEBUG_BOOT, "No RTA code to download yet\n");
 615                 return 0;
 616         }
 617
 618         /*
 619          ** Special case of boot completed - if we get one of these then we
 620          ** don't need a command block. For all other cases we do, so handle
 621          ** this first and then get a command block, then handle every other
 622          ** case, relinquishing the command block if disaster strikes!
 623          */
 624         if ((readb(&PacketP->len) & PKT_CMD_BIT) && (readb(&PktCmdP->Command) == BOOT_COMPLETED))
 625                 return RIOBootComplete(p, HostP, Rup, PktCmdP);
 626
 627         /*
 628          ** Try to allocate a command block. This is in kernel space
 629          */
 630         if (!(CmdBlkP = RIOGetCmdBlk())) {
 631                 rio_dprintk(RIO_DEBUG_BOOT, "No command blocks to boot RTA! come back later.\n");
 632                 return 0;
 633         }
 634
 635         /*
 636          ** Fill in the default info on the command block
 637          */
 638         CmdBlkP->Packet.dest_unit = Rup < (unsigned short) MAX_RUP ? Rup : 0;
 639         CmdBlkP->Packet.dest_port = BOOT_RUP;
 640         CmdBlkP->Packet.src_unit = 0;
 641         CmdBlkP->Packet.src_port = BOOT_RUP;
 642
 643         CmdBlkP->PreFuncP = CmdBlkP->PostFuncP = NULL;
 644         PktReplyP = (struct PktCmd_M *) CmdBlkP->Packet.data;
 645
 646         /*
 647          ** process COMMANDS on the boot rup!
 648          */
 649         if (readb(&PacketP->len) & PKT_CMD_BIT) {
 650                 /*
 651                  ** We only expect one type of command - a BOOT_REQUEST!
 652                  */
 653                 if (readb(&PktCmdP->Command) != BOOT_REQUEST) {
 654                         rio_dprintk(RIO_DEBUG_BOOT, "Unexpected command %d on BOOT RUP %d of host %Zd\n", readb(&PktCmdP->Command), Rup, HostP - p->RIOHosts);
 655                         RIOFreeCmdBlk(CmdBlkP);
 656                         return 1;
 657                 }
 658
 659                 /*
 660                  ** Build a Boot Sequence command block
 661                  **
 662                  ** We no longer need to use "Boot Mode", we'll always allow
 663                  ** boot requests - the boot will not complete if the device
 664                  ** appears in the bindings table.
 665                  **
 666                  ** We'll just (always) set the command field in packet reply
 667                  ** to allow an attempted boot sequence :
 668                  */
 669                 PktReplyP->Command = BOOT_SEQUENCE;
 670
 671                 PktReplyP->BootSequence.NumPackets = p->RIONumBootPkts;
 672                 PktReplyP->BootSequence.LoadBase = p->RIOConf.RtaLoadBase;
 673                 PktReplyP->BootSequence.CodeSize = p->RIOBootCount;
 674
 675                 CmdBlkP->Packet.len = BOOT_SEQUENCE_LEN | PKT_CMD_BIT;
 676
 677                 memcpy((void *) &CmdBlkP->Packet.data[BOOT_SEQUENCE_LEN], "BOOT", 4);
 678
 679                 rio_dprintk(RIO_DEBUG_BOOT, "Boot RTA on Host %Zd Rup %d - %d (0x%x) packets to 0x%x\n", HostP - p->RIOHosts, Rup, p->RIONumBootPkts, p->RIONumBootPkts, p->RIOConf.RtaLoadBase);
 680
 681                 /*
 682                  ** If this host is in slave mode, send the RTA an invalid boot
 683                  ** sequence command block to force it to kill the boot. We wait
 684                  ** for half a second before sending this packet to prevent the RTA
 685                  ** attempting to boot too often. The master host should then grab
 686                  ** the RTA and make it its own.
 687                  */
 688                 p->RIOBooting++;
 689                 RIOQueueCmdBlk(HostP, Rup, CmdBlkP);
 690                 return 1;
 691         }
 692
 693         /*
 694          ** It is a request for boot data.
 695          */
 696         sequence = readw(&PktCmdP->Sequence);
 697
 698         rio_dprintk(RIO_DEBUG_BOOT, "Boot block %d on Host %Zd Rup%d\n", sequence, HostP - p->RIOHosts, Rup);
 699
 700         if (sequence >= p->RIONumBootPkts) {
 701                 rio_dprintk(RIO_DEBUG_BOOT, "Got a request for packet %d, max is %d\n", sequence, p->RIONumBootPkts);
 702         }
 703
 704         PktReplyP->Sequence = sequence;
 705         memcpy(PktReplyP->BootData, p->RIOBootPackets[p->RIONumBootPkts - sequence - 1], RTA_BOOT_DATA_SIZE);
 706         CmdBlkP->Packet.len = PKT_MAX_DATA_LEN;
 707         RIOQueueCmdBlk(HostP, Rup, CmdBlkP);
 708         return 1;
 709 }
 710
 711 /**
 712  *      RIOBootComplete         -       RTA boot is done
 713  *      @p: RIO we are working with
 714  *      @HostP: Host structure
 715  *      @Rup: RUP being used
 716  *      @PktCmdP: Packet command that was used
 717  *
 718  *      This function is called when an RTA been booted.
 719  *      If booted by a host, HostP->HostUniqueNum is the booting host.
 720  *      If booted by an RTA, HostP->Mapping[Rup].RtaUniqueNum is the booting RTA.
 721  *      RtaUniq is the booted RTA.
 722  */
 723
 724 static int RIOBootComplete(struct rio_info *p, struct Host *HostP, unsigned int Rup, struct PktCmd __iomem *PktCmdP)
 725 {
 726         struct Map *MapP = NULL;
 727         struct Map *MapP2 = NULL;
 728         int Flag;
 729         int found;
 730         int host, rta;
 731         int EmptySlot = -1;
 732         int entry, entry2;
 733         char *MyType, *MyName;
 734         unsigned int MyLink;
 735         unsigned short RtaType;
 736         u32 RtaUniq = (readb(&PktCmdP->UniqNum[0])) + (readb(&PktCmdP->UniqNum[1]) << 8) + (readb(&PktCmdP->UniqNum[2]) << 16) + (readb(&PktCmdP->UniqNum[3]) << 24);
 737
 738         p->RIOBooting = 0;
 739
 740         rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot completed - BootInProgress now %d\n", p->RIOBooting);
 741
 742         /*
 743          ** Determine type of unit (16/8 port RTA).
 744          */
 745
 746         RtaType = GetUnitType(RtaUniq);
 747         if (Rup >= (unsigned short) MAX_RUP)
 748                 rio_dprintk(RIO_DEBUG_BOOT, "RIO: Host %s has booted an RTA(%d) on link %c\n", HostP->Name, 8 * RtaType, readb(&PktCmdP->LinkNum) + 'A');
 749         else
 750                 rio_dprintk(RIO_DEBUG_BOOT, "RIO: RTA %s has booted an RTA(%d) on link %c\n", HostP->Mapping[Rup].Name, 8 * RtaType, readb(&PktCmdP->LinkNum) + 'A');
 751
 752         rio_dprintk(RIO_DEBUG_BOOT, "UniqNum is 0x%x\n", RtaUniq);
 753
 754         if (RtaUniq == 0x00000000 || RtaUniq == 0xffffffff) {
 755                 rio_dprintk(RIO_DEBUG_BOOT, "Illegal RTA Uniq Number\n");
 756                 return 1;
 757         }
 758
 759         /*
 760          ** If this RTA has just booted an RTA which doesn't belong to this
 761          ** system, or the system is in slave mode, do not attempt to create
 762          ** a new table entry for it.
 763          */
 764
 765         if (!RIOBootOk(p, HostP, RtaUniq)) {
 766                 MyLink = readb(&PktCmdP->LinkNum);
 767                 if (Rup < (unsigned short) MAX_RUP) {
 768                         /*
 769                          ** RtaUniq was clone booted (by this RTA). Instruct this RTA
 770                          ** to hold off further attempts to boot on this link for 30
 771                          ** seconds.
 772                          */
 773                         if (RIOSuspendBootRta(HostP, HostP->Mapping[Rup].ID, MyLink)) {
 774                                 rio_dprintk(RIO_DEBUG_BOOT, "RTA failed to suspend booting on link %c\n", 'A' + MyLink);
 775                         }
 776                 } else
 777                         /*
 778                          ** RtaUniq was booted by this host. Set the booting link
 779                          ** to hold off for 30 seconds to give another unit a
 780                          ** chance to boot it.
 781                          */
 782                         writew(30, &HostP->LinkStrP[MyLink].WaitNoBoot);
 783                 rio_dprintk(RIO_DEBUG_BOOT, "RTA %x not owned - suspend booting down link %c on unit %x\n", RtaUniq, 'A' + MyLink, HostP->Mapping[Rup].RtaUniqueNum);
 784                 return 1;
 785         }
 786
 787         /*
 788          ** Check for a SLOT_IN_USE entry for this RTA attached to the
 789          ** current host card in the driver table.
 790          **
 791          ** If it exists, make a note that we have booted it. Other parts of
 792          ** the driver are interested in this information at a later date,
 793          ** in particular when the booting RTA asks for an ID for this unit,
 794          ** we must have set the BOOTED flag, and the NEWBOOT flag is used
 795          ** to force an open on any ports that where previously open on this
 796          ** unit.
 797          */
 798         for (entry = 0; entry < MAX_RUP; entry++) {
 799                 unsigned int sysport;
 800
 801                 if ((HostP->Mapping[entry].Flags & SLOT_IN_USE) && (HostP->Mapping[entry].RtaUniqueNum == RtaUniq)) {
 802                         HostP->Mapping[entry].Flags |= RTA_BOOTED | RTA_NEWBOOT;
 803                         if ((sysport = HostP->Mapping[entry].SysPort) != NO_PORT) {
 804                                 if (sysport < p->RIOFirstPortsBooted)
 805                                         p->RIOFirstPortsBooted = sysport;
 806                                 if (sysport > p->RIOLastPortsBooted)
 807                                         p->RIOLastPortsBooted = sysport;
 808                                 /*
 809                                  ** For a 16 port RTA, check the second bank of 8 ports
 810                                  */
 811                                 if (RtaType == TYPE_RTA16) {
 812                                         entry2 = HostP->Mapping[entry].ID2 - 1;
 813                                         HostP->Mapping[entry2].Flags |= RTA_BOOTED | RTA_NEWBOOT;
 814                                         sysport = HostP->Mapping[entry2].SysPort;
 815                                         if (sysport < p->RIOFirstPortsBooted)
 816                                                 p->RIOFirstPortsBooted = sysport;
 817                                         if (sysport > p->RIOLastPortsBooted)
 818                                                 p->RIOLastPortsBooted = sysport;
 819                                 }
 820                         }
 821                         if (RtaType == TYPE_RTA16)
 822                                 rio_dprintk(RIO_DEBUG_BOOT, "RTA will be given IDs %d+%d\n", entry + 1, entry2 + 1);
 823                         else
 824                                 rio_dprintk(RIO_DEBUG_BOOT, "RTA will be given ID %d\n", entry + 1);
 825                         return 1;
 826                 }
 827         }
 828
 829         rio_dprintk(RIO_DEBUG_BOOT, "RTA not configured for this host\n");
 830
 831         if (Rup >= (unsigned short) MAX_RUP) {
 832                 /*
 833                  ** It was a host that did the booting
 834                  */
 835                 MyType = "Host";
 836                 MyName = HostP->Name;
 837         } else {
 838                 /*
 839                  ** It was an RTA that did the booting
 840                  */
 841                 MyType = "RTA";
 842                 MyName = HostP->Mapping[Rup].Name;
 843         }
 844         MyLink = readb(&PktCmdP->LinkNum);
 845
 846         /*
 847          ** There is no SLOT_IN_USE entry for this RTA attached to the current
 848          ** host card in the driver table.
 849          **
 850          ** Check for a SLOT_TENTATIVE entry for this RTA attached to the
 851          ** current host card in the driver table.
 852          **
 853          ** If we find one, then we re-use that slot.
 854          */
 855         for (entry = 0; entry < MAX_RUP; entry++) {
 856                 if ((HostP->Mapping[entry].Flags & SLOT_TENTATIVE) && (HostP->Mapping[entry].RtaUniqueNum == RtaUniq)) {
 857                         if (RtaType == TYPE_RTA16) {
 858                                 entry2 = HostP->Mapping[entry].ID2 - 1;
 859                                 if ((HostP->Mapping[entry2].Flags & SLOT_TENTATIVE) && (HostP->Mapping[entry2].RtaUniqueNum == RtaUniq))
 860                                         rio_dprintk(RIO_DEBUG_BOOT, "Found previous tentative slots (%d+%d)\n", entry, entry2);
 861                                 else
 862                                         continue;
 863                         } else
 864                                 rio_dprintk(RIO_DEBUG_BOOT, "Found previous tentative slot (%d)\n", entry);
 865                         if (!p->RIONoMessage)
 866                                 printk("RTA connected to %s '%s' (%c) not configured.\n", MyType, MyName, MyLink + 'A');
 867                         return 1;
 868                 }
 869         }
 870
 871         /*
 872          ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
 873          ** attached to the current host card in the driver table.
 874          **
 875          ** Check if there is a SLOT_IN_USE or SLOT_TENTATIVE entry on another
 876          ** host for this RTA in the driver table.
 877          **
 878          ** For a SLOT_IN_USE entry on another host, we need to delete the RTA
 879          ** entry from the other host and add it to this host (using some of
 880          ** the functions from table.c which do this).
 881          ** For a SLOT_TENTATIVE entry on another host, we must cope with the
 882          ** following scenario:
 883          **
 884          ** + Plug 8 port RTA into host A. (This creates SLOT_TENTATIVE entry
 885          **   in table)
 886          ** + Unplug RTA and plug into host B. (We now have 2 SLOT_TENTATIVE
 887          **   entries)
 888          ** + Configure RTA on host B. (This slot now becomes SLOT_IN_USE)
 889          ** + Unplug RTA and plug back into host A.
 890          ** + Configure RTA on host A. We now have the same RTA configured
 891          **   with different ports on two different hosts.
 892          */
 893         rio_dprintk(RIO_DEBUG_BOOT, "Have we seen RTA %x before?\n", RtaUniq);
 894         found = 0;
 895         Flag = 0;               /* Convince the compiler this variable is initialized */
 896         for (host = 0; !found && (host < p->RIONumHosts); host++) {
 897                 for (rta = 0; rta < MAX_RUP; rta++) {
 898                         if ((p->RIOHosts[host].Mapping[rta].Flags & (SLOT_IN_USE | SLOT_TENTATIVE)) && (p->RIOHosts[host].Mapping[rta].RtaUniqueNum == RtaUniq)) {
 899                                 Flag = p->RIOHosts[host].Mapping[rta].Flags;
 900                                 MapP = &p->RIOHosts[host].Mapping[rta];
 901                                 if (RtaType == TYPE_RTA16) {
 902                                         MapP2 = &p->RIOHosts[host].Mapping[MapP->ID2 - 1];
 903                                         rio_dprintk(RIO_DEBUG_BOOT, "This RTA is units %d+%d from host %s\n", rta + 1, MapP->ID2, p->RIOHosts[host].Name);
 904                                 } else
 905                                         rio_dprintk(RIO_DEBUG_BOOT, "This RTA is unit %d from host %s\n", rta + 1, p->RIOHosts[host].Name);
 906                                 found = 1;
 907                                 break;
 908                         }
 909                 }
 910         }
 911
 912         /*
 913          ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
 914          ** attached to the current host card in the driver table.
 915          **
 916          ** If we have not found a SLOT_IN_USE or SLOT_TENTATIVE entry on
 917          ** another host for this RTA in the driver table...
 918          **
 919          ** Check for a SLOT_IN_USE entry for this RTA in the config table.
 920          */
 921         if (!MapP) {
 922                 rio_dprintk(RIO_DEBUG_BOOT, "Look for RTA %x in RIOSavedTable\n", RtaUniq);
 923                 for (rta = 0; rta < TOTAL_MAP_ENTRIES; rta++) {
 924                         rio_dprintk(RIO_DEBUG_BOOT, "Check table entry %d (%x)", rta, p->RIOSavedTable[rta].RtaUniqueNum);
 925
 926                         if ((p->RIOSavedTable[rta].Flags & SLOT_IN_USE) && (p->RIOSavedTable[rta].RtaUniqueNum == RtaUniq)) {
 927                                 MapP = &p->RIOSavedTable[rta];
 928                                 Flag = p->RIOSavedTable[rta].Flags;
 929                                 if (RtaType == TYPE_RTA16) {
 930                                         for (entry2 = rta + 1; entry2 < TOTAL_MAP_ENTRIES; entry2++) {
 931                                                 if (p->RIOSavedTable[entry2].RtaUniqueNum == RtaUniq)
 932                                                         break;
 933                                         }
 934                                         MapP2 = &p->RIOSavedTable[entry2];
 935                                         rio_dprintk(RIO_DEBUG_BOOT, "This RTA is from table entries %d+%d\n", rta, entry2);
 936                                 } else
 937                                         rio_dprintk(RIO_DEBUG_BOOT, "This RTA is from table entry %d\n", rta);
 938                                 break;
 939                         }
 940                 }
 941         }
 942
 943         /*
 944          ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
 945          ** attached to the current host card in the driver table.
 946          **
 947          ** We may have found a SLOT_IN_USE entry on another host for this
 948          ** RTA in the config table, or a SLOT_IN_USE or SLOT_TENTATIVE entry
 949          ** on another host for this RTA in the driver table.
 950          **
 951          ** Check the driver table for room to fit this newly discovered RTA.
 952          ** RIOFindFreeID() first looks for free slots and if it does not
 953          ** find any free slots it will then attempt to oust any
 954          ** tentative entry in the table.
 955          */
 956         EmptySlot = 1;
 957         if (RtaType == TYPE_RTA16) {
 958                 if (RIOFindFreeID(p, HostP, &entry, &entry2) == 0) {
 959                         RIODefaultName(p, HostP, entry);
 960                         rio_fill_host_slot(entry, entry2, RtaUniq, HostP);
 961                         EmptySlot = 0;
 962                 }
 963         } else {
 964                 if (RIOFindFreeID(p, HostP, &entry, NULL) == 0) {
 965                         RIODefaultName(p, HostP, entry);
 966                         rio_fill_host_slot(entry, 0, RtaUniq, HostP);
 967                         EmptySlot = 0;
 968                 }
 969         }
 970
 971         /*
 972          ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
 973          ** attached to the current host card in the driver table.
 974          **
 975          ** If we found a SLOT_IN_USE entry on another host for this
 976          ** RTA in the config or driver table, and there are enough free
 977          ** slots in the driver table, then we need to move it over and
 978          ** delete it from the other host.
 979          ** If we found a SLOT_TENTATIVE entry on another host for this
 980          ** RTA in the driver table, just delete the other host entry.
 981          */
 982         if (EmptySlot == 0) {
 983                 if (MapP) {
 984                         if (Flag & SLOT_IN_USE) {
 985                                 rio_dprintk(RIO_DEBUG_BOOT, "This RTA configured on another host - move entry to current host (1)\n");
 986                                 HostP->Mapping[entry].SysPort = MapP->SysPort;
 987                                 memcpy(HostP->Mapping[entry].Name, MapP->Name, MAX_NAME_LEN);
 988                                 HostP->Mapping[entry].Flags = SLOT_IN_USE | RTA_BOOTED | RTA_NEWBOOT;
 989                                 RIOReMapPorts(p, HostP, &HostP->Mapping[entry]);
 990                                 if (HostP->Mapping[entry].SysPort < p->RIOFirstPortsBooted)
 991                                         p->RIOFirstPortsBooted = HostP->Mapping[entry].SysPort;
 992                                 if (HostP->Mapping[entry].SysPort > p->RIOLastPortsBooted)
 993                                         p->RIOLastPortsBooted = HostP->Mapping[entry].SysPort;
 994                                 rio_dprintk(RIO_DEBUG_BOOT, "SysPort %d, Name %s\n", (int) MapP->SysPort, MapP->Name);
 995                         } else {
 996                                 rio_dprintk(RIO_DEBUG_BOOT, "This RTA has a tentative entry on another host - delete that entry (1)\n");
 997                                 HostP->Mapping[entry].Flags = SLOT_TENTATIVE | RTA_BOOTED | RTA_NEWBOOT;
 998                         }
 999                         if (RtaType == TYPE_RTA16) {
1000                                 if (Flag & SLOT_IN_USE) {
1001                                         HostP->Mapping[entry2].Flags = SLOT_IN_USE | RTA_BOOTED | RTA_NEWBOOT | RTA16_SECOND_SLOT;
1002                                         HostP->Mapping[entry2].SysPort = MapP2->SysPort;
1003                                         /*
1004                                          ** Map second block of ttys for 16 port RTA
1005                                          */
1006                                         RIOReMapPorts(p, HostP, &HostP->Mapping[entry2]);
1007                                         if (HostP->Mapping[entry2].SysPort < p->RIOFirstPortsBooted)
1008                                                 p->RIOFirstPortsBooted = HostP->Mapping[entry2].SysPort;
1009                                         if (HostP->Mapping[entry2].SysPort > p->RIOLastPortsBooted)
1010                                                 p->RIOLastPortsBooted = HostP->Mapping[entry2].SysPort;
1011                                         rio_dprintk(RIO_DEBUG_BOOT, "SysPort %d, Name %s\n", (int) HostP->Mapping[entry2].SysPort, HostP->Mapping[entry].Name);
1012                                 } else
1013                                         HostP->Mapping[entry2].Flags = SLOT_TENTATIVE | RTA_BOOTED | RTA_NEWBOOT | RTA16_SECOND_SLOT;
1014                                 memset(MapP2, 0, sizeof(struct Map));
1015                         }
1016                         memset(MapP, 0, sizeof(struct Map));
1017                         if (!p->RIONoMessage)
1018                                 printk("An orphaned RTA has been adopted by %s '%s' (%c).\n", MyType, MyName, MyLink + 'A');
1019                 } else if (!p->RIONoMessage)
1020                         printk("RTA connected to %s '%s' (%c) not configured.\n", MyType, MyName, MyLink + 'A');
1021                 RIOSetChange(p);
1022                 return 1;
1023         }
1024
1025         /*
1026          ** There is no room in the driver table to make an entry for the
1027          ** booted RTA. Keep a note of its Uniq Num in the overflow table,
1028          ** so we can ignore it's ID requests.
1029          */
1030         if (!p->RIONoMessage)
1031                 printk("The RTA connected to %s '%s' (%c) cannot be configured.  You cannot configure more than 128 ports to one host card.\n", MyType, MyName, MyLink + 'A');
1032         for (entry = 0; entry < HostP->NumExtraBooted; entry++) {
1033                 if (HostP->ExtraUnits[entry] == RtaUniq) {
1034                         /*
1035                          ** already got it!
1036                          */
1037                         return 1;
1038                 }
1039         }
1040         /*
1041          ** If there is room, add the unit to the list of extras
1042          */
1043         if (HostP->NumExtraBooted < MAX_EXTRA_UNITS)
1044                 HostP->ExtraUnits[HostP->NumExtraBooted++] = RtaUniq;
1045         return 1;
1046 }
1047
1048
1049 /*
1050 ** If the RTA or its host appears in the RIOBindTab[] structure then
1051 ** we mustn't boot the RTA and should return 0.
1052 ** This operation is slightly different from the other drivers for RIO
1053 ** in that this is designed to work with the new utilities
1054 ** not config.rio and is FAR SIMPLER.
1055 ** We no longer support the RIOBootMode variable. It is all done from the
1056 ** "boot/noboot" field in the rio.cf file.
1057 */
1058 int RIOBootOk(struct rio_info *p, struct Host *HostP, unsigned long RtaUniq)
1059 {
1060         int Entry;
1061         unsigned int HostUniq = HostP->UniqueNum;
1062
1063         /*
1064          ** Search bindings table for RTA or its parent.
1065          ** If it exists, return 0, else 1.
1066          */
1067         for (Entry = 0; (Entry < MAX_RTA_BINDINGS) && (p->RIOBindTab[Entry] != 0); Entry++) {
1068                 if ((p->RIOBindTab[Entry] == HostUniq) || (p->RIOBindTab[Entry] == RtaUniq))
1069                         return 0;
1070         }
1071         return 1;
1072 }
1073
1074 /*
1075 ** Make an empty slot tentative. If this is a 16 port RTA, make both
1076 ** slots tentative, and the second one RTA_SECOND_SLOT as well.
1077 */
1078
1079 void rio_fill_host_slot(int entry, int entry2, unsigned int rta_uniq, struct Host *host)
1080 {
1081         int link;
1082
1083         rio_dprintk(RIO_DEBUG_BOOT, "rio_fill_host_slot(%d, %d, 0x%x...)\n", entry, entry2, rta_uniq);
1084
1085         host->Mapping[entry].Flags = (RTA_BOOTED | RTA_NEWBOOT | SLOT_TENTATIVE);
1086         host->Mapping[entry].SysPort = NO_PORT;
1087         host->Mapping[entry].RtaUniqueNum = rta_uniq;
1088         host->Mapping[entry].HostUniqueNum = host->UniqueNum;
1089         host->Mapping[entry].ID = entry + 1;
1090         host->Mapping[entry].ID2 = 0;
1091         if (entry2) {
1092                 host->Mapping[entry2].Flags = (RTA_BOOTED | RTA_NEWBOOT | SLOT_TENTATIVE | RTA16_SECOND_SLOT);
1093                 host->Mapping[entry2].SysPort = NO_PORT;
1094                 host->Mapping[entry2].RtaUniqueNum = rta_uniq;
1095                 host->Mapping[entry2].HostUniqueNum = host->UniqueNum;
1096                 host->Mapping[entry2].Name[0] = '\0';
1097                 host->Mapping[entry2].ID = entry2 + 1;
1098                 host->Mapping[entry2].ID2 = entry + 1;
1099                 host->Mapping[entry].ID2 = entry2 + 1;
1100         }
1101         /*
1102          ** Must set these up, so that utilities show
1103          ** topology of 16 port RTAs correctly
1104          */
1105         for (link = 0; link < LINKS_PER_UNIT; link++) {
1106                 host->Mapping[entry].Topology[link].Unit = ROUTE_DISCONNECT;
1107                 host->Mapping[entry].Topology[link].Link = NO_LINK;
1108                 if (entry2) {
1109                         host->Mapping[entry2].Topology[link].Unit = ROUTE_DISCONNECT;
1110                         host->Mapping[entry2].Topology[link].Link = NO_LINK;
1111                 }
1112         }
1113 }