drivers/scsi/a100u2w.c

   1 /*
   2  * Initio A100 device driver for Linux.
   3  *
   4  * Copyright (c) 1994-1998 Initio Corporation
   5  * Copyright (c) 2003-2004 Christoph Hellwig
   6  * All rights reserved.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; see the file COPYING.  If not, write to
  20  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  26  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 /*
  36  * Revision History:
  37  * 07/02/98 hl  - v.91n Initial drivers.
  38  * 09/14/98 hl - v1.01 Support new Kernel.
  39  * 09/22/98 hl - v1.01a Support reset.
  40  * 09/24/98 hl - v1.01b Fixed reset.
  41  * 10/05/98 hl - v1.02 split the source code and release.
  42  * 12/19/98 bv - v1.02a Use spinlocks for 2.1.95 and up
  43  * 01/31/99 bv - v1.02b Use mdelay instead of waitForPause
  44  * 08/08/99 bv - v1.02c Use waitForPause again.
  45  * 06/25/02 Doug Ledford <dledford@redhat.com> - v1.02d
  46  *          - Remove limit on number of controllers
  47  *          - Port to DMA mapping API
  48  *          - Clean up interrupt handler registration
  49  *          - Fix memory leaks
  50  *          - Fix allocation of scsi host structs and private data
  51  * 11/18/03 Christoph Hellwig <hch@lst.de>
  52  *          - Port to new probing API
  53  *          - Fix some more leaks in init failure cases
  54  * 9/28/04 Christoph Hellwig <hch@lst.de>
  55  *          - merge the two source files
  56  *          - remove internal queueing code
  57  * 14/06/07 Alan Cox <alan@lxorguk.ukuu.org.uk>
  58  *       - Grand cleanup and Linuxisation
  59  */
  60
  61 #include <linux/module.h>
  62 #include <linux/errno.h>
  63 #include <linux/delay.h>
  64 #include <linux/interrupt.h>
  65 #include <linux/pci.h>
  66 #include <linux/init.h>
  67 #include <linux/blkdev.h>
  68 #include <linux/spinlock.h>
  69 #include <linux/kernel.h>
  70 #include <linux/string.h>
  71 #include <linux/ioport.h>
  72 #include <linux/dma-mapping.h>
  73
  74 #include <asm/io.h>
  75 #include <asm/irq.h>
  76
  77 #include <scsi/scsi.h>
  78 #include <scsi/scsi_cmnd.h>
  79 #include <scsi/scsi_device.h>
  80 #include <scsi/scsi_host.h>
  81
  82 #include "a100u2w.h"
  83
  84
  85 static struct orc_scb *__orc_alloc_scb(struct orc_host * host);
  86 static void inia100_scb_handler(struct orc_host *host, struct orc_scb *scb);
  87
  88 static struct orc_nvram nvram, *nvramp = &nvram;
  89
  90 static u8 default_nvram[64] =
  91 {
  92 /*----------header -------------*/
  93         0x01,                   /* 0x00: Sub System Vendor ID 0 */
  94         0x11,                   /* 0x01: Sub System Vendor ID 1 */
  95         0x60,                   /* 0x02: Sub System ID 0        */
  96         0x10,                   /* 0x03: Sub System ID 1        */
  97         0x00,                   /* 0x04: SubClass               */
  98         0x01,                   /* 0x05: Vendor ID 0            */
  99         0x11,                   /* 0x06: Vendor ID 1            */
 100         0x60,                   /* 0x07: Device ID 0            */
 101         0x10,                   /* 0x08: Device ID 1            */
 102         0x00,                   /* 0x09: Reserved               */
 103         0x00,                   /* 0x0A: Reserved               */
 104         0x01,                   /* 0x0B: Revision of Data Structure     */
 105                                 /* -- Host Adapter Structure --- */
 106         0x01,                   /* 0x0C: Number Of SCSI Channel */
 107         0x01,                   /* 0x0D: BIOS Configuration 1   */
 108         0x00,                   /* 0x0E: BIOS Configuration 2   */
 109         0x00,                   /* 0x0F: BIOS Configuration 3   */
 110                                 /* --- SCSI Channel 0 Configuration --- */
 111         0x07,                   /* 0x10: H/A ID                 */
 112         0x83,                   /* 0x11: Channel Configuration  */
 113         0x20,                   /* 0x12: MAX TAG per target     */
 114         0x0A,                   /* 0x13: SCSI Reset Recovering time     */
 115         0x00,                   /* 0x14: Channel Configuration4 */
 116         0x00,                   /* 0x15: Channel Configuration5 */
 117                                 /* SCSI Channel 0 Target Configuration  */
 118                                 /* 0x16-0x25                    */
 119         0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
 120         0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
 121                                 /* --- SCSI Channel 1 Configuration --- */
 122         0x07,                   /* 0x26: H/A ID                 */
 123         0x83,                   /* 0x27: Channel Configuration  */
 124         0x20,                   /* 0x28: MAX TAG per target     */
 125         0x0A,                   /* 0x29: SCSI Reset Recovering time     */
 126         0x00,                   /* 0x2A: Channel Configuration4 */
 127         0x00,                   /* 0x2B: Channel Configuration5 */
 128                                 /* SCSI Channel 1 Target Configuration  */
 129                                 /* 0x2C-0x3B                    */
 130         0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
 131         0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
 132         0x00,                   /* 0x3C: Reserved               */
 133         0x00,                   /* 0x3D: Reserved               */
 134         0x00,                   /* 0x3E: Reserved               */
 135         0x00                    /* 0x3F: Checksum               */
 136 };
 137
 138
 139 static u8 wait_chip_ready(struct orc_host * host)
 140 {
 141         int i;
 142
 143         for (i = 0; i < 10; i++) {      /* Wait 1 second for report timeout     */
 144                 if (inb(host->base + ORC_HCTRL) & HOSTSTOP)     /* Wait HOSTSTOP set */
 145                         return 1;
 146                 mdelay(100);
 147         }
 148         return 0;
 149 }
 150
 151 static u8 wait_firmware_ready(struct orc_host * host)
 152 {
 153         int i;
 154
 155         for (i = 0; i < 10; i++) {      /* Wait 1 second for report timeout     */
 156                 if (inb(host->base + ORC_HSTUS) & RREADY)               /* Wait READY set */
 157                         return 1;
 158                 mdelay(100);    /* wait 100ms before try again  */
 159         }
 160         return 0;
 161 }
 162
 163 /***************************************************************************/
 164 static u8 wait_scsi_reset_done(struct orc_host * host)
 165 {
 166         int i;
 167
 168         for (i = 0; i < 10; i++) {      /* Wait 1 second for report timeout     */
 169                 if (!(inb(host->base + ORC_HCTRL) & SCSIRST))   /* Wait SCSIRST done */
 170                         return 1;
 171                 mdelay(100);    /* wait 100ms before try again  */
 172         }
 173         return 0;
 174 }
 175
 176 /***************************************************************************/
 177 static u8 wait_HDO_off(struct orc_host * host)
 178 {
 179         int i;
 180
 181         for (i = 0; i < 10; i++) {      /* Wait 1 second for report timeout     */
 182                 if (!(inb(host->base + ORC_HCTRL) & HDO))               /* Wait HDO off */
 183                         return 1;
 184                 mdelay(100);    /* wait 100ms before try again  */
 185         }
 186         return 0;
 187 }
 188
 189 /***************************************************************************/
 190 static u8 wait_hdi_set(struct orc_host * host, u8 * data)
 191 {
 192         int i;
 193
 194         for (i = 0; i < 10; i++) {      /* Wait 1 second for report timeout     */
 195                 if ((*data = inb(host->base + ORC_HSTUS)) & HDI)
 196                         return 1;       /* Wait HDI set */
 197                 mdelay(100);    /* wait 100ms before try again  */
 198         }
 199         return 0;
 200 }
 201
 202 /***************************************************************************/
 203 static unsigned short orc_read_fwrev(struct orc_host * host)
 204 {
 205         u16 version;
 206         u8 data;
 207
 208         outb(ORC_CMD_VERSION, host->base + ORC_HDATA);
 209         outb(HDO, host->base + ORC_HCTRL);
 210         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
 211                 return 0;
 212
 213         if (wait_hdi_set(host, &data) == 0)     /* Wait HDI set   */
 214                 return 0;
 215         version = inb(host->base + ORC_HDATA);
 216         outb(data, host->base + ORC_HSTUS);     /* Clear HDI            */
 217
 218         if (wait_hdi_set(host, &data) == 0)     /* Wait HDI set   */
 219                 return 0;
 220         version |= inb(host->base + ORC_HDATA) << 8;
 221         outb(data, host->base + ORC_HSTUS);     /* Clear HDI            */
 222
 223         return version;
 224 }
 225
 226 /***************************************************************************/
 227 static u8 orc_nv_write(struct orc_host * host, unsigned char address, unsigned char value)
 228 {
 229         outb(ORC_CMD_SET_NVM, host->base + ORC_HDATA);  /* Write command */
 230         outb(HDO, host->base + ORC_HCTRL);
 231         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
 232                 return 0;
 233
 234         outb(address, host->base + ORC_HDATA);  /* Write address */
 235         outb(HDO, host->base + ORC_HCTRL);
 236         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
 237                 return 0;
 238
 239         outb(value, host->base + ORC_HDATA);    /* Write value  */
 240         outb(HDO, host->base + ORC_HCTRL);
 241         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
 242                 return 0;
 243
 244         return 1;
 245 }
 246
 247 /***************************************************************************/
 248 static u8 orc_nv_read(struct orc_host * host, u8 address, u8 *ptr)
 249 {
 250         unsigned char data;
 251
 252         outb(ORC_CMD_GET_NVM, host->base + ORC_HDATA);  /* Write command */
 253         outb(HDO, host->base + ORC_HCTRL);
 254         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
 255                 return 0;
 256
 257         outb(address, host->base + ORC_HDATA);  /* Write address */
 258         outb(HDO, host->base + ORC_HCTRL);
 259         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
 260                 return 0;
 261
 262         if (wait_hdi_set(host, &data) == 0)     /* Wait HDI set   */
 263                 return 0;
 264         *ptr = inb(host->base + ORC_HDATA);
 265         outb(data, host->base + ORC_HSTUS);     /* Clear HDI    */
 266
 267         return 1;
 268
 269 }
 270
 271 /**
 272  *      orc_exec_sb             -       Queue an SCB with the HA
 273  *      @host: host adapter the SCB belongs to
 274  *      @scb: SCB to queue for execution
 275  */
 276
 277 static void orc_exec_scb(struct orc_host * host, struct orc_scb * scb)
 278 {
 279         scb->status = ORCSCB_POST;
 280         outb(scb->scbidx, host->base + ORC_PQUEUE);
 281 }
 282
 283
 284 /**
 285  *      se2_rd_all      -       read SCSI parameters from EEPROM
 286  *      @host: Host whose EEPROM is being loaded
 287  *
 288  *      Read SCSI H/A configuration parameters from serial EEPROM
 289  */
 290
 291 static int se2_rd_all(struct orc_host * host)
 292 {
 293         int i;
 294         u8 *np, chksum = 0;
 295
 296         np = (u8 *) nvramp;
 297         for (i = 0; i < 64; i++, np++) {        /* <01> */
 298                 if (orc_nv_read(host, (u8) i, np) == 0)
 299                         return -1;
 300         }
 301
 302         /*------ Is ckecksum ok ? ------*/
 303         np = (u8 *) nvramp;
 304         for (i = 0; i < 63; i++)
 305                 chksum += *np++;
 306
 307         if (nvramp->CheckSum != (u8) chksum)
 308                 return -1;
 309         return 1;
 310 }
 311
 312 /**
 313  *      se2_update_all          -       update the EEPROM
 314  *      @host: Host whose EEPROM is being updated
 315  *
 316  *      Update changed bytes in the EEPROM image.
 317  */
 318
 319 static void se2_update_all(struct orc_host * host)
 320 {                               /* setup default pattern  */
 321         int i;
 322         u8 *np, *np1, chksum = 0;
 323
 324         /* Calculate checksum first   */
 325         np = (u8 *) default_nvram;
 326         for (i = 0; i < 63; i++)
 327                 chksum += *np++;
 328         *np = chksum;
 329
 330         np = (u8 *) default_nvram;
 331         np1 = (u8 *) nvramp;
 332         for (i = 0; i < 64; i++, np++, np1++) {
 333                 if (*np != *np1)
 334                         orc_nv_write(host, (u8) i, *np);
 335         }
 336 }
 337
 338 /**
 339  *      read_eeprom             -       load EEPROM
 340  *      @host: Host EEPROM to read
 341  *
 342  *      Read the EEPROM for a given host. If it is invalid or fails
 343  *      the restore the defaults and use them.
 344  */
 345
 346 static void read_eeprom(struct orc_host * host)
 347 {
 348         if (se2_rd_all(host) != 1) {
 349                 se2_update_all(host);   /* setup default pattern        */
 350                 se2_rd_all(host);       /* load again                   */
 351         }
 352 }
 353
 354
 355 /**
 356  *      orc_load_firmware       -       initialise firmware
 357  *      @host: Host to set up
 358  *
 359  *      Load the firmware from the EEPROM into controller SRAM. This
 360  *      is basically a 4K block copy and then a 4K block read to check
 361  *      correctness. The rest is convulted by the indirect interfaces
 362  *      in the hardware
 363  */
 364
 365 static u8 orc_load_firmware(struct orc_host * host)
 366 {
 367         u32 data32;
 368         u16 bios_addr;
 369         u16 i;
 370         u8 *data32_ptr, data;
 371
 372
 373         /* Set up the EEPROM for access */
 374
 375         data = inb(host->base + ORC_GCFG);
 376         outb(data | EEPRG, host->base + ORC_GCFG);      /* Enable EEPROM programming */
 377         outb(0x00, host->base + ORC_EBIOSADR2);
 378         outw(0x0000, host->base + ORC_EBIOSADR0);
 379         if (inb(host->base + ORC_EBIOSDATA) != 0x55) {
 380                 outb(data, host->base + ORC_GCFG);      /* Disable EEPROM programming */
 381                 return 0;
 382         }
 383         outw(0x0001, host->base + ORC_EBIOSADR0);
 384         if (inb(host->base + ORC_EBIOSDATA) != 0xAA) {
 385                 outb(data, host->base + ORC_GCFG);      /* Disable EEPROM programming */
 386                 return 0;
 387         }
 388
 389         outb(PRGMRST | DOWNLOAD, host->base + ORC_RISCCTL);     /* Enable SRAM programming */
 390         data32_ptr = (u8 *) & data32;
 391         data32 = cpu_to_le32(0);                /* Initial FW address to 0 */
 392         outw(0x0010, host->base + ORC_EBIOSADR0);
 393         *data32_ptr = inb(host->base + ORC_EBIOSDATA);          /* Read from BIOS */
 394         outw(0x0011, host->base + ORC_EBIOSADR0);
 395         *(data32_ptr + 1) = inb(host->base + ORC_EBIOSDATA);    /* Read from BIOS */
 396         outw(0x0012, host->base + ORC_EBIOSADR0);
 397         *(data32_ptr + 2) = inb(host->base + ORC_EBIOSDATA);    /* Read from BIOS */
 398         outw(*(data32_ptr + 2), host->base + ORC_EBIOSADR2);
 399         outl(le32_to_cpu(data32), host->base + ORC_FWBASEADR);          /* Write FW address */
 400
 401         /* Copy the code from the BIOS to the SRAM */
 402
 403         udelay(500);    /* Required on Sun Ultra 5 ... 350 -> failures */
 404         bios_addr = (u16) le32_to_cpu(data32);  /* FW code locate at BIOS address + ? */
 405         for (i = 0, data32_ptr = (u8 *) & data32;       /* Download the code    */
 406              i < 0x1000;        /* Firmware code size = 4K      */
 407              i++, bios_addr++) {
 408                 outw(bios_addr, host->base + ORC_EBIOSADR0);
 409                 *data32_ptr++ = inb(host->base + ORC_EBIOSDATA);        /* Read from BIOS */
 410                 if ((i % 4) == 3) {
 411                         outl(le32_to_cpu(data32), host->base + ORC_RISCRAM);    /* Write every 4 bytes */
 412                         data32_ptr = (u8 *) & data32;
 413                 }
 414         }
 415
 416         /* Go back and check they match */
 417
 418         outb(PRGMRST | DOWNLOAD, host->base + ORC_RISCCTL);     /* Reset program count 0 */
 419         bios_addr -= 0x1000;    /* Reset the BIOS address */
 420         for (i = 0, data32_ptr = (u8 *) & data32;       /* Check the code       */
 421              i < 0x1000;        /* Firmware code size = 4K      */
 422              i++, bios_addr++) {
 423                 outw(bios_addr, host->base + ORC_EBIOSADR0);
 424                 *data32_ptr++ = inb(host->base + ORC_EBIOSDATA);        /* Read from BIOS */
 425                 if ((i % 4) == 3) {
 426                         if (inl(host->base + ORC_RISCRAM) != le32_to_cpu(data32)) {
 427                                 outb(PRGMRST, host->base + ORC_RISCCTL);        /* Reset program to 0 */
 428                                 outb(data, host->base + ORC_GCFG);      /*Disable EEPROM programming */
 429                                 return 0;
 430                         }
 431                         data32_ptr = (u8 *) & data32;
 432                 }
 433         }
 434
 435         /* Success */
 436         outb(PRGMRST, host->base + ORC_RISCCTL);        /* Reset program to 0   */
 437         outb(data, host->base + ORC_GCFG);      /* Disable EEPROM programming */
 438         return 1;
 439 }
 440
 441 /***************************************************************************/
 442 static void setup_SCBs(struct orc_host * host)
 443 {
 444         struct orc_scb *scb;
 445         int i;
 446         struct orc_extended_scb *escb;
 447         dma_addr_t escb_phys;
 448
 449         /* Setup SCB base and SCB Size registers */
 450         outb(ORC_MAXQUEUE, host->base + ORC_SCBSIZE);   /* Total number of SCBs */
 451         /* SCB base address 0      */
 452         outl(host->scb_phys, host->base + ORC_SCBBASE0);
 453         /* SCB base address 1      */
 454         outl(host->scb_phys, host->base + ORC_SCBBASE1);
 455
 456         /* setup scatter list address with one buffer */
 457         scb = host->scb_virt;
 458         escb = host->escb_virt;
 459
 460         for (i = 0; i < ORC_MAXQUEUE; i++) {
 461                 escb_phys = (host->escb_phys + (sizeof(struct orc_extended_scb) * i));
 462                 scb->sg_addr = cpu_to_le32((u32) escb_phys);
 463                 scb->sense_addr = cpu_to_le32((u32) escb_phys);
 464                 scb->escb = escb;
 465                 scb->scbidx = i;
 466                 scb++;
 467                 escb++;
 468         }
 469 }
 470
 471 /**
 472  *      init_alloc_map          -       initialise allocation map
 473  *      @host: host map to configure
 474  *
 475  *      Initialise the allocation maps for this device. If the device
 476  *      is not quiescent the caller must hold the allocation lock
 477  */
 478
 479 static void init_alloc_map(struct orc_host * host)
 480 {
 481         u8 i, j;
 482
 483         for (i = 0; i < MAX_CHANNELS; i++) {
 484                 for (j = 0; j < 8; j++) {
 485                         host->allocation_map[i][j] = 0xffffffff;
 486                 }
 487         }
 488 }
 489
 490 /**
 491  *      init_orchid             -       initialise the host adapter
 492  *      @host:host adapter to initialise
 493  *
 494  *      Initialise the controller and if necessary load the firmware.
 495  *
 496  *      Returns -1 if the initialisation fails.
 497  */
 498
 499 static int init_orchid(struct orc_host * host)
 500 {
 501         u8 *ptr;
 502         u16 revision;
 503         u8 i;
 504
 505         init_alloc_map(host);
 506         outb(0xFF, host->base + ORC_GIMSK);     /* Disable all interrupts */
 507
 508         if (inb(host->base + ORC_HSTUS) & RREADY) {     /* Orchid is ready */
 509                 revision = orc_read_fwrev(host);
 510                 if (revision == 0xFFFF) {
 511                         outb(DEVRST, host->base + ORC_HCTRL);   /* Reset Host Adapter   */
 512                         if (wait_chip_ready(host) == 0)
 513                                 return -1;
 514                         orc_load_firmware(host);        /* Download FW                  */
 515                         setup_SCBs(host);       /* Setup SCB base and SCB Size registers */
 516                         outb(0x00, host->base + ORC_HCTRL);     /* clear HOSTSTOP       */
 517                         if (wait_firmware_ready(host) == 0)
 518                                 return -1;
 519                         /* Wait for firmware ready     */
 520                 } else {
 521                         setup_SCBs(host);       /* Setup SCB base and SCB Size registers */
 522                 }
 523         } else {                /* Orchid is not Ready          */
 524                 outb(DEVRST, host->base + ORC_HCTRL);   /* Reset Host Adapter   */
 525                 if (wait_chip_ready(host) == 0)
 526                         return -1;
 527                 orc_load_firmware(host);        /* Download FW                  */
 528                 setup_SCBs(host);       /* Setup SCB base and SCB Size registers */
 529                 outb(HDO, host->base + ORC_HCTRL);      /* Do Hardware Reset &  */
 530
 531                 /*     clear HOSTSTOP  */
 532                 if (wait_firmware_ready(host) == 0)             /* Wait for firmware ready      */
 533                         return -1;
 534         }
 535
 536         /* Load an EEProm copy into RAM */
 537         /* Assumes single threaded at this point */
 538         read_eeprom(host);
 539
 540         if (nvramp->revision != 1)
 541                 return -1;
 542
 543         host->scsi_id = nvramp->scsi_id;
 544         host->BIOScfg = nvramp->BIOSConfig1;
 545         host->max_targets = MAX_TARGETS;
 546         ptr = (u8 *) & (nvramp->Target00Config);
 547         for (i = 0; i < 16; ptr++, i++) {
 548                 host->target_flag[i] = *ptr;
 549                 host->max_tags[i] = ORC_MAXTAGS;
 550         }
 551
 552         if (nvramp->SCSI0Config & NCC_BUSRESET)
 553                 host->flags |= HCF_SCSI_RESET;
 554         outb(0xFB, host->base + ORC_GIMSK);     /* enable RP FIFO interrupt     */
 555         return 0;
 556 }
 557
 558 /**
 559  *      orc_reset_scsi_bus              -       perform bus reset
 560  *      @host: host being reset
 561  *
 562  *      Perform a full bus reset on the adapter.
 563  */
 564
 565 static int orc_reset_scsi_bus(struct orc_host * host)
 566 {                               /* I need Host Control Block Information */
 567         unsigned long flags;
 568
 569         spin_lock_irqsave(&host->allocation_lock, flags);
 570
 571         init_alloc_map(host);
 572         /* reset scsi bus */
 573         outb(SCSIRST, host->base + ORC_HCTRL);
 574         /* FIXME: We can spend up to a second with the lock held and
 575            interrupts off here */
 576         if (wait_scsi_reset_done(host) == 0) {
 577                 spin_unlock_irqrestore(&host->allocation_lock, flags);
 578                 return FAILED;
 579         } else {
 580                 spin_unlock_irqrestore(&host->allocation_lock, flags);
 581                 return SUCCESS;
 582         }
 583 }
 584
 585 /**
 586  *      orc_device_reset        -       device reset handler
 587  *      @host: host to reset
 588  *      @cmd: command causing the reset
 589  *      @target; target device
 590  *
 591  *      Reset registers, reset a hanging bus and kill active and disconnected
 592  *      commands for target w/o soft reset
 593  */
 594
 595 static int orc_device_reset(struct orc_host * host, struct scsi_cmnd *cmd, unsigned int target)
 596 {                               /* I need Host Control Block Information */
 597         struct orc_scb *scb;
 598         struct orc_extended_scb *escb;
 599         struct orc_scb *host_scb;
 600         u8 i;
 601         unsigned long flags;
 602
 603         spin_lock_irqsave(&(host->allocation_lock), flags);
 604         scb = (struct orc_scb *) NULL;
 605         escb = (struct orc_extended_scb *) NULL;
 606
 607         /* setup scatter list address with one buffer */
 608         host_scb = host->scb_virt;
 609
 610         /* FIXME: is this safe if we then fail to issue the reset or race
 611            a completion ? */
 612         init_alloc_map(host);
 613
 614         /* Find the scb corresponding to the command */
 615         for (i = 0; i < ORC_MAXQUEUE; i++) {
 616                 escb = host_scb->escb;
 617                 if (host_scb->status && escb->srb == cmd)
 618                         break;
 619                 host_scb++;
 620         }
 621
 622         if (i == ORC_MAXQUEUE) {
 623                 printk(KERN_ERR "Unable to Reset - No SCB Found\n");
 624                 spin_unlock_irqrestore(&(host->allocation_lock), flags);
 625                 return FAILED;
 626         }
 627
 628         /* Allocate a new SCB for the reset command to the firmware */
 629         if ((scb = __orc_alloc_scb(host)) == NULL) {
 630                 /* Can't happen.. */
 631                 spin_unlock_irqrestore(&(host->allocation_lock), flags);
 632                 return FAILED;
 633         }
 634
 635         /* Reset device is handled by the firmware, we fill in an SCB and
 636            fire it at the controller, it does the rest */
 637         scb->opcode = ORC_BUSDEVRST;
 638         scb->target = target;
 639         scb->hastat = 0;
 640         scb->tastat = 0;
 641         scb->status = 0x0;
 642         scb->link = 0xFF;
 643         scb->reserved0 = 0;
 644         scb->reserved1 = 0;
 645         scb->xferlen = cpu_to_le32(0);
 646         scb->sg_len = cpu_to_le32(0);
 647
 648         escb->srb = NULL;
 649         escb->srb = cmd;
 650         orc_exec_scb(host, scb);        /* Start execute SCB            */
 651         spin_unlock_irqrestore(&host->allocation_lock, flags);
 652         return SUCCESS;
 653 }
 654
 655 /**
 656  *      __orc_alloc_scb         -               allocate an SCB
 657  *      @host: host to allocate from
 658  *
 659  *      Allocate an SCB and return a pointer to the SCB object. NULL
 660  *      is returned if no SCB is free. The caller must already hold
 661  *      the allocator lock at this point.
 662  */
 663
 664
 665 static struct orc_scb *__orc_alloc_scb(struct orc_host * host)
 666 {
 667         u8 channel;
 668         unsigned long idx;
 669         u8 index;
 670         u8 i;
 671
 672         channel = host->index;
 673         for (i = 0; i < 8; i++) {
 674                 for (index = 0; index < 32; index++) {
 675                         if ((host->allocation_map[channel][i] >> index) & 0x01) {
 676                                 host->allocation_map[channel][i] &= ~(1 << index);
 677                                 idx = index + 32 * i;
 678                                 /*
 679                                  * Translate the index to a structure instance
 680                                  */
 681                                 return host->scb_virt + idx;
 682                         }
 683                 }
 684         }
 685         return NULL;
 686 }
 687
 688 /**
 689  *      orc_alloc_scb           -               allocate an SCB
 690  *      @host: host to allocate from
 691  *
 692  *      Allocate an SCB and return a pointer to the SCB object. NULL
 693  *      is returned if no SCB is free.
 694  */
 695
 696 static struct orc_scb *orc_alloc_scb(struct orc_host * host)
 697 {
 698         struct orc_scb *scb;
 699         unsigned long flags;
 700
 701         spin_lock_irqsave(&host->allocation_lock, flags);
 702         scb = __orc_alloc_scb(host);
 703         spin_unlock_irqrestore(&host->allocation_lock, flags);
 704         return scb;
 705 }
 706
 707 /**
 708  *      orc_release_scb                 -       release an SCB
 709  *      @host: host owning the SCB
 710  *      @scb: SCB that is now free
 711  *
 712  *      Called to return a completed SCB to the allocation pool. Before
 713  *      calling the SCB must be out of use on both the host and the HA.
 714  */
 715
 716 static void orc_release_scb(struct orc_host *host, struct orc_scb *scb)
 717 {
 718         unsigned long flags;
 719         u8 index, i, channel;
 720
 721         spin_lock_irqsave(&(host->allocation_lock), flags);
 722         channel = host->index;  /* Channel */
 723         index = scb->scbidx;
 724         i = index / 32;
 725         index %= 32;
 726         host->allocation_map[channel][i] |= (1 << index);
 727         spin_unlock_irqrestore(&(host->allocation_lock), flags);
 728 }
 729
 730 /**
 731  *      orchid_abort_scb        -       abort a command
 732  *
 733  *      Abort a queued command that has been passed to the firmware layer
 734  *      if possible. This is all handled by the firmware. We aks the firmware
 735  *      and it either aborts the command or fails
 736  */
 737
 738 static int orchid_abort_scb(struct orc_host * host, struct orc_scb * scb)
 739 {
 740         unsigned char data, status;
 741
 742         outb(ORC_CMD_ABORT_SCB, host->base + ORC_HDATA);        /* Write command */
 743         outb(HDO, host->base + ORC_HCTRL);
 744         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
 745                 return 0;
 746
 747         outb(scb->scbidx, host->base + ORC_HDATA);      /* Write address */
 748         outb(HDO, host->base + ORC_HCTRL);
 749         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
 750                 return 0;
 751
 752         if (wait_hdi_set(host, &data) == 0)     /* Wait HDI set   */
 753                 return 0;
 754         status = inb(host->base + ORC_HDATA);
 755         outb(data, host->base + ORC_HSTUS);     /* Clear HDI    */
 756
 757         if (status == 1)        /* 0 - Successfully               */
 758                 return 0;       /* 1 - Fail                     */
 759         return 1;
 760 }
 761
 762 static int inia100_abort_cmd(struct orc_host * host, struct scsi_cmnd *cmd)
 763 {
 764         struct orc_extended_scb *escb;
 765         struct orc_scb *scb;
 766         u8 i;
 767         unsigned long flags;
 768
 769         spin_lock_irqsave(&(host->allocation_lock), flags);
 770
 771         scb = host->scb_virt;
 772
 773         /* Walk the queue until we find the SCB that belongs to the command
 774            block. This isn't a performance critical path so a walk in the park
 775            here does no harm */
 776
 777         for (i = 0; i < ORC_MAXQUEUE; i++, scb++) {
 778                 escb = scb->escb;
 779                 if (scb->status && escb->srb == cmd) {
 780                         if (scb->tag_msg == 0) {
 781                                 goto out;
 782                         } else {
 783                                 /* Issue an ABORT to the firmware */
 784                                 if (orchid_abort_scb(host, scb)) {
 785                                         escb->srb = NULL;
 786                                         spin_unlock_irqrestore(&host->allocation_lock, flags);
 787                                         return SUCCESS;
 788                                 } else
 789                                         goto out;
 790                         }
 791                 }
 792         }
 793 out:
 794         spin_unlock_irqrestore(&host->allocation_lock, flags);
 795         return FAILED;
 796 }
 797
 798 /**
 799  *      orc_interrupt           -       IRQ processing
 800  *      @host: Host causing the interrupt
 801  *
 802  *      This function is called from the IRQ handler and protected
 803  *      by the host lock. While the controller reports that there are
 804  *      scb's for processing we pull them off the controller, turn the
 805  *      index into a host address pointer to the scb and call the scb
 806  *      handler.
 807  *
 808  *      Returns IRQ_HANDLED if any SCBs were processed, IRQ_NONE otherwise
 809  */
 810
 811 static irqreturn_t orc_interrupt(struct orc_host * host)
 812 {
 813         u8 scb_index;
 814         struct orc_scb *scb;
 815
 816         /* Check if we have an SCB queued for servicing */
 817         if (inb(host->base + ORC_RQUEUECNT) == 0)
 818                 return IRQ_NONE;
 819
 820         do {
 821                 /* Get the SCB index of the SCB to service */
 822                 scb_index = inb(host->base + ORC_RQUEUE);
 823
 824                 /* Translate it back to a host pointer */
 825                 scb = (struct orc_scb *) ((unsigned long) host->scb_virt + (unsigned long) (sizeof(struct orc_scb) * scb_index));
 826                 scb->status = 0x0;
 827                 /* Process the SCB */
 828                 inia100_scb_handler(host, scb);
 829         } while (inb(host->base + ORC_RQUEUECNT));
 830         return IRQ_HANDLED;
 831 }                               /* End of I1060Interrupt() */
 832
 833 /**
 834  *      inia100_build_scb       -       build SCB
 835  *      @host: host owing the control block
 836  *      @scb: control block to use
 837  *      @cmd: Mid layer command
 838  *
 839  *      Build a host adapter control block from the SCSI mid layer command
 840  */
 841
 842 static int inia100_build_scb(struct orc_host * host, struct orc_scb * scb, struct scsi_cmnd * cmd)
 843 {                               /* Create corresponding SCB     */
 844         struct scatterlist *sg;
 845         struct orc_sgent *sgent;                /* Pointer to SG list           */
 846         int i, count_sg;
 847         struct orc_extended_scb *escb;
 848
 849         /* Links between the escb, scb and Linux scsi midlayer cmd */
 850         escb = scb->escb;
 851         escb->srb = cmd;
 852         sgent = NULL;
 853
 854         /* Set up the SCB to do a SCSI command block */
 855         scb->opcode = ORC_EXECSCSI;
 856         scb->flags = SCF_NO_DCHK;       /* Clear done bit               */
 857         scb->target = cmd->device->id;
 858         scb->lun = cmd->device->lun;
 859         scb->reserved0 = 0;
 860         scb->reserved1 = 0;
 861         scb->sg_len = cpu_to_le32(0);
 862
 863         scb->xferlen = cpu_to_le32((u32) scsi_bufflen(cmd));
 864         sgent = (struct orc_sgent *) & escb->sglist[0];
 865
 866         count_sg = scsi_dma_map(cmd);
 867         if (count_sg < 0)
 868                 return count_sg;
 869         BUG_ON(count_sg > TOTAL_SG_ENTRY);
 870
 871         /* Build the scatter gather lists */
 872         if (count_sg) {
 873                 scb->sg_len = cpu_to_le32((u32) (count_sg * 8));
 874                 scsi_for_each_sg(cmd, sg, count_sg, i) {
 875                         sgent->base = cpu_to_le32((u32) sg_dma_address(sg));
 876                         sgent->length = cpu_to_le32((u32) sg_dma_len(sg));
 877                         sgent++;
 878                 }
 879         } else {
 880                 scb->sg_len = cpu_to_le32(0);
 881                 sgent->base = cpu_to_le32(0);
 882                 sgent->length = cpu_to_le32(0);
 883         }
 884         scb->sg_addr = (u32) scb->sense_addr;   /* sense_addr is already little endian */
 885         scb->hastat = 0;
 886         scb->tastat = 0;
 887         scb->link = 0xFF;
 888         scb->sense_len = SENSE_SIZE;
 889         scb->cdb_len = cmd->cmd_len;
 890         if (scb->cdb_len >= IMAX_CDB) {
 891                 printk("max cdb length= %x\b", cmd->cmd_len);
 892                 scb->cdb_len = IMAX_CDB;
 893         }
 894         scb->ident = cmd->device->lun | DISC_ALLOW;
 895         if (cmd->device->tagged_supported) {    /* Tag Support                  */
 896                 scb->tag_msg = SIMPLE_QUEUE_TAG;        /* Do simple tag only   */
 897         } else {
 898                 scb->tag_msg = 0;       /* No tag support               */
 899         }
 900         memcpy(scb->cdb, cmd->cmnd, scb->cdb_len);
 901         return 0;
 902 }
 903
 904 /**
 905  *      inia100_queue           -       queue command with host
 906  *      @cmd: Command block
 907  *      @done: Completion function
 908  *
 909  *      Called by the mid layer to queue a command. Process the command
 910  *      block, build the host specific scb structures and if there is room
 911  *      queue the command down to the controller
 912  */
 913
 914 static int inia100_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *))
 915 {
 916         struct orc_scb *scb;
 917         struct orc_host *host;          /* Point to Host adapter control block */
 918
 919         host = (struct orc_host *) cmd->device->host->hostdata;
 920         cmd->scsi_done = done;
 921         /* Get free SCSI control block  */
 922         if ((scb = orc_alloc_scb(host)) == NULL)
 923                 return SCSI_MLQUEUE_HOST_BUSY;
 924
 925         if (inia100_build_scb(host, scb, cmd)) {
 926                 orc_release_scb(host, scb);
 927                 return SCSI_MLQUEUE_HOST_BUSY;
 928         }
 929         orc_exec_scb(host, scb);        /* Start execute SCB            */
 930         return 0;
 931 }
 932
 933 static DEF_SCSI_QCMD(inia100_queue)
 934
 935 /*****************************************************************************
 936  Function name  : inia100_abort
 937  Description    : Abort a queued command.
 938                          (commands that are on the bus can't be aborted easily)
 939  Input          : host  -       Pointer to host adapter structure
 940  Output         : None.
 941  Return         : pSRB  -       Pointer to SCSI request block.
 942 *****************************************************************************/
 943 static int inia100_abort(struct scsi_cmnd * cmd)
 944 {
 945         struct orc_host *host;
 946
 947         host = (struct orc_host *) cmd->device->host->hostdata;
 948         return inia100_abort_cmd(host, cmd);
 949 }
 950
 951 /*****************************************************************************
 952  Function name  : inia100_reset
 953  Description    : Reset registers, reset a hanging bus and
 954                   kill active and disconnected commands for target w/o soft reset
 955  Input          : host  -       Pointer to host adapter structure
 956  Output         : None.
 957  Return         : pSRB  -       Pointer to SCSI request block.
 958 *****************************************************************************/
 959 static int inia100_bus_reset(struct scsi_cmnd * cmd)
 960 {                               /* I need Host Control Block Information */
 961         struct orc_host *host;
 962         host = (struct orc_host *) cmd->device->host->hostdata;
 963         return orc_reset_scsi_bus(host);
 964 }
 965
 966 /*****************************************************************************
 967  Function name  : inia100_device_reset
 968  Description    : Reset the device
 969  Input          : host  -       Pointer to host adapter structure
 970  Output         : None.
 971  Return         : pSRB  -       Pointer to SCSI request block.
 972 *****************************************************************************/
 973 static int inia100_device_reset(struct scsi_cmnd * cmd)
 974 {                               /* I need Host Control Block Information */
 975         struct orc_host *host;
 976         host = (struct orc_host *) cmd->device->host->hostdata;
 977         return orc_device_reset(host, cmd, scmd_id(cmd));
 978
 979 }
 980
 981 /**
 982  *      inia100_scb_handler     -       interrupt callback
 983  *      @host: Host causing the interrupt
 984  *      @scb: SCB the controller returned as needing processing
 985  *
 986  *      Perform completion processing on a control block. Do the conversions
 987  *      from host to SCSI midlayer error coding, save any sense data and
 988  *      the complete with the midlayer and recycle the scb.
 989  */
 990
 991 static void inia100_scb_handler(struct orc_host *host, struct orc_scb *scb)
 992 {
 993         struct scsi_cmnd *cmd;  /* Pointer to SCSI request block */
 994         struct orc_extended_scb *escb;
 995
 996         escb = scb->escb;
 997         if ((cmd = (struct scsi_cmnd *) escb->srb) == NULL) {
 998                 printk(KERN_ERR "inia100_scb_handler: SRB pointer is empty\n");
 999                 orc_release_scb(host, scb);     /* Release SCB for current channel */
1000                 return;
1001         }
1002         escb->srb = NULL;
1003
1004         switch (scb->hastat) {
1005         case 0x0:
1006         case 0xa:               /* Linked command complete without error and linked normally */
1007         case 0xb:               /* Linked command complete without error interrupt generated */
1008                 scb->hastat = 0;
1009                 break;
1010
1011         case 0x11:              /* Selection time out-The initiator selection or target
1012                                    reselection was not complete within the SCSI Time out period */
1013                 scb->hastat = DID_TIME_OUT;
1014                 break;
1015
1016         case 0x14:              /* Target bus phase sequence failure-An invalid bus phase or bus
1017                                    phase sequence was requested by the target. The host adapter
1018                                    will generate a SCSI Reset Condition, notifying the host with
1019                                    a SCRD interrupt */
1020                 scb->hastat = DID_RESET;
1021                 break;
1022
1023         case 0x1a:              /* SCB Aborted. 07/21/98 */
1024                 scb->hastat = DID_ABORT;
1025                 break;
1026
1027         case 0x12:              /* Data overrun/underrun-The target attempted to transfer more data
1028                                    than was allocated by the Data Length field or the sum of the
1029                                    Scatter / Gather Data Length fields. */
1030         case 0x13:              /* Unexpected bus free-The target dropped the SCSI BSY at an unexpected time. */
1031         case 0x16:              /* Invalid CCB Operation Code-The first byte of the CCB was invalid. */
1032
1033         default:
1034                 printk(KERN_DEBUG "inia100: %x %x\n", scb->hastat, scb->tastat);
1035                 scb->hastat = DID_ERROR;        /* Couldn't find any better */
1036                 break;
1037         }
1038
1039         if (scb->tastat == 2) { /* Check condition              */
1040                 memcpy((unsigned char *) &cmd->sense_buffer[0],
1041                    (unsigned char *) &escb->sglist[0], SENSE_SIZE);
1042         }
1043         cmd->result = scb->tastat | (scb->hastat << 16);
1044         scsi_dma_unmap(cmd);
1045         cmd->scsi_done(cmd);    /* Notify system DONE           */
1046         orc_release_scb(host, scb);     /* Release SCB for current channel */
1047 }
1048
1049 /**
1050  *      inia100_intr            -       interrupt handler
1051  *      @irqno: Interrupt value
1052  *      @devid: Host adapter
1053  *
1054  *      Entry point for IRQ handling. All the real work is performed
1055  *      by orc_interrupt.
1056  */
1057 static irqreturn_t inia100_intr(int irqno, void *devid)
1058 {
1059         struct Scsi_Host *shost = (struct Scsi_Host *)devid;
1060         struct orc_host *host = (struct orc_host *)shost->hostdata;
1061         unsigned long flags;
1062         irqreturn_t res;
1063
1064         spin_lock_irqsave(shost->host_lock, flags);
1065         res = orc_interrupt(host);
1066         spin_unlock_irqrestore(shost->host_lock, flags);
1067
1068         return res;
1069 }
1070
1071 static struct scsi_host_template inia100_template = {
1072         .proc_name              = "inia100",
1073         .name                   = inia100_REVID,
1074         .queuecommand           = inia100_queue,
1075         .eh_abort_handler       = inia100_abort,
1076         .eh_bus_reset_handler   = inia100_bus_reset,
1077         .eh_device_reset_handler = inia100_device_reset,
1078         .can_queue              = 1,
1079         .this_id                = 1,
1080         .sg_tablesize           = SG_ALL,
1081         .cmd_per_lun            = 1,
1082         .use_clustering         = ENABLE_CLUSTERING,
1083 };
1084
1085 static int inia100_probe_one(struct pci_dev *pdev,
1086                              const struct pci_device_id *id)
1087 {
1088         struct Scsi_Host *shost;
1089         struct orc_host *host;
1090         unsigned long port, bios;
1091         int error = -ENODEV;
1092         u32 sz;
1093         unsigned long biosaddr;
1094         char *bios_phys;
1095
1096         if (pci_enable_device(pdev))
1097                 goto out;
1098         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
1099                 printk(KERN_WARNING "Unable to set 32bit DMA "
1100                                     "on inia100 adapter, ignoring.\n");
1101                 goto out_disable_device;
1102         }
1103
1104         pci_set_master(pdev);
1105
1106         port = pci_resource_start(pdev, 0);
1107         if (!request_region(port, 256, "inia100")) {
1108                 printk(KERN_WARNING "inia100: io port 0x%lx, is busy.\n", port);
1109                 goto out_disable_device;
1110         }
1111
1112         /* <02> read from base address + 0x50 offset to get the bios value. */
1113         bios = inw(port + 0x50);
1114
1115
1116         shost = scsi_host_alloc(&inia100_template, sizeof(struct orc_host));
1117         if (!shost)
1118                 goto out_release_region;
1119
1120         host = (struct orc_host *)shost->hostdata;
1121         host->pdev = pdev;
1122         host->base = port;
1123         host->BIOScfg = bios;
1124         spin_lock_init(&host->allocation_lock);
1125
1126         /* Get total memory needed for SCB */
1127         sz = ORC_MAXQUEUE * sizeof(struct orc_scb);
1128         host->scb_virt = pci_alloc_consistent(pdev, sz,
1129                         &host->scb_phys);
1130         if (!host->scb_virt) {
1131                 printk("inia100: SCB memory allocation error\n");
1132                 goto out_host_put;
1133         }
1134         memset(host->scb_virt, 0, sz);
1135
1136         /* Get total memory needed for ESCB */
1137         sz = ORC_MAXQUEUE * sizeof(struct orc_extended_scb);
1138         host->escb_virt = pci_alloc_consistent(pdev, sz,
1139                         &host->escb_phys);
1140         if (!host->escb_virt) {
1141                 printk("inia100: ESCB memory allocation error\n");
1142                 goto out_free_scb_array;
1143         }
1144         memset(host->escb_virt, 0, sz);
1145
1146         biosaddr = host->BIOScfg;
1147         biosaddr = (biosaddr << 4);
1148         bios_phys = phys_to_virt(biosaddr);
1149         if (init_orchid(host)) {        /* Initialize orchid chip */
1150                 printk("inia100: initial orchid fail!!\n");
1151                 goto out_free_escb_array;
1152         }
1153
1154         shost->io_port = host->base;
1155         shost->n_io_port = 0xff;
1156         shost->can_queue = ORC_MAXQUEUE;
1157         shost->unique_id = shost->io_port;
1158         shost->max_id = host->max_targets;
1159         shost->max_lun = 16;
1160         shost->irq = pdev->irq;
1161         shost->this_id = host->scsi_id; /* Assign HCS index */
1162         shost->sg_tablesize = TOTAL_SG_ENTRY;
1163
1164         /* Initial orc chip           */
1165         error = request_irq(pdev->irq, inia100_intr, IRQF_SHARED,
1166                         "inia100", shost);
1167         if (error < 0) {
1168                 printk(KERN_WARNING "inia100: unable to get irq %d\n",
1169                                 pdev->irq);
1170                 goto out_free_escb_array;
1171         }
1172
1173         pci_set_drvdata(pdev, shost);
1174
1175         error = scsi_add_host(shost, &pdev->dev);
1176         if (error)
1177                 goto out_free_irq;
1178
1179         scsi_scan_host(shost);
1180         return 0;
1181
1182 out_free_irq:
1183         free_irq(shost->irq, shost);
1184 out_free_escb_array:
1185         pci_free_consistent(pdev, ORC_MAXQUEUE * sizeof(struct orc_extended_scb),
1186                         host->escb_virt, host->escb_phys);
1187 out_free_scb_array:
1188         pci_free_consistent(pdev, ORC_MAXQUEUE * sizeof(struct orc_scb),
1189                         host->scb_virt, host->scb_phys);
1190 out_host_put:
1191         scsi_host_put(shost);
1192 out_release_region:
1193         release_region(port, 256);
1194 out_disable_device:
1195         pci_disable_device(pdev);
1196 out:
1197         return error;
1198 }
1199
1200 static void inia100_remove_one(struct pci_dev *pdev)
1201 {
1202         struct Scsi_Host *shost = pci_get_drvdata(pdev);
1203         struct orc_host *host = (struct orc_host *)shost->hostdata;
1204
1205         scsi_remove_host(shost);
1206
1207         free_irq(shost->irq, shost);
1208         pci_free_consistent(pdev, ORC_MAXQUEUE * sizeof(struct orc_extended_scb),
1209                         host->escb_virt, host->escb_phys);
1210         pci_free_consistent(pdev, ORC_MAXQUEUE * sizeof(struct orc_scb),
1211                         host->scb_virt, host->scb_phys);
1212         release_region(shost->io_port, 256);
1213
1214         scsi_host_put(shost);
1215 }
1216
1217 static struct pci_device_id inia100_pci_tbl[] = {
1218         {PCI_VENDOR_ID_INIT, 0x1060, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1219         {0,}
1220 };
1221 MODULE_DEVICE_TABLE(pci, inia100_pci_tbl);
1222
1223 static struct pci_driver inia100_pci_driver = {
1224         .name           = "inia100",
1225         .id_table       = inia100_pci_tbl,
1226         .probe          = inia100_probe_one,
1227         .remove         = inia100_remove_one,
1228 };
1229
1230 static int __init inia100_init(void)
1231 {
1232         return pci_register_driver(&inia100_pci_driver);
1233 }
1234
1235 static void __exit inia100_exit(void)
1236 {
1237         pci_unregister_driver(&inia100_pci_driver);
1238 }
1239
1240 MODULE_DESCRIPTION("Initio A100U2W SCSI driver");
1241 MODULE_AUTHOR("Initio Corporation");
1242 MODULE_LICENSE("Dual BSD/GPL");
1243
1244 module_init(inia100_init);
1245 module_exit(inia100_exit);