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

   1 /*
   2 *******************************************************************************
   3 **        O.S   : Linux
   4 **   FILE NAME  : arcmsr_hba.c
   5 **        BY    : Erich Chen
   6 **   Description: SCSI RAID Device Driver for
   7 **                ARECA RAID Host adapter
   8 *******************************************************************************
   9 ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved
  10 **
  11 **     Web site: www.areca.com.tw
  12 **       E-mail: erich@areca.com.tw
  13 **
  14 ** This program is free software; you can redistribute it and/or modify
  15 ** it under the terms of the GNU General Public License version 2 as
  16 ** published by the Free Software Foundation.
  17 ** This program is distributed in the hope that it will be useful,
  18 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ** GNU General Public License for more details.
  21 *******************************************************************************
  22 ** Redistribution and use in source and binary forms, with or without
  23 ** modification, are permitted provided that the following conditions
  24 ** are met:
  25 ** 1. Redistributions of source code must retain the above copyright
  26 **    notice, this list of conditions and the following disclaimer.
  27 ** 2. Redistributions in binary form must reproduce the above copyright
  28 **    notice, this list of conditions and the following disclaimer in the
  29 **    documentation and/or other materials provided with the distribution.
  30 ** 3. The name of the author may not be used to endorse or promote products
  31 **    derived from this software without specific prior written permission.
  32 **
  33 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  34 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  35 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  36 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  37 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT
  38 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  39 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
  40 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  41 ** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
  42 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  43 *******************************************************************************
  44 ** For history of changes, see Documentation/scsi/ChangeLog.arcmsr
  45 **     Firmware Specification, see Documentation/scsi/arcmsr_spec.txt
  46 *******************************************************************************
  47 */
  48 #include <linux/module.h>
  49 #include <linux/reboot.h>
  50 #include <linux/spinlock.h>
  51 #include <linux/pci_ids.h>
  52 #include <linux/interrupt.h>
  53 #include <linux/moduleparam.h>
  54 #include <linux/errno.h>
  55 #include <linux/types.h>
  56 #include <linux/delay.h>
  57 #include <linux/dma-mapping.h>
  58 #include <linux/timer.h>
  59 #include <linux/pci.h>
  60 #include <asm/dma.h>
  61 #include <asm/io.h>
  62 #include <asm/system.h>
  63 #include <asm/uaccess.h>
  64 #include <scsi/scsi_host.h>
  65 #include <scsi/scsi.h>
  66 #include <scsi/scsi_cmnd.h>
  67 #include <scsi/scsi_tcq.h>
  68 #include <scsi/scsi_device.h>
  69 #include <scsi/scsi_transport.h>
  70 #include <scsi/scsicam.h>
  71 #include "arcmsr.h"
  72
  73 MODULE_AUTHOR("Erich Chen <erich@areca.com.tw>");
  74 MODULE_DESCRIPTION("ARECA (ARC11xx/12xx) SATA RAID HOST Adapter");
  75 MODULE_LICENSE("Dual BSD/GPL");
  76 MODULE_VERSION(ARCMSR_DRIVER_VERSION);
  77
  78 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, struct scsi_cmnd *cmd);
  79 static int arcmsr_abort(struct scsi_cmnd *);
  80 static int arcmsr_bus_reset(struct scsi_cmnd *);
  81 static int arcmsr_bios_param(struct scsi_device *sdev,
  82                                 struct block_device *bdev, sector_t capacity, int *info);
  83 static int arcmsr_queue_command(struct scsi_cmnd * cmd,
  84                                 void (*done) (struct scsi_cmnd *));
  85 static int arcmsr_probe(struct pci_dev *pdev,
  86                                 const struct pci_device_id *id);
  87 static void arcmsr_remove(struct pci_dev *pdev);
  88 static void arcmsr_shutdown(struct pci_dev *pdev);
  89 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
  90 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb);
  91 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
  92 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb);
  93 static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *acb);
  94 static const char *arcmsr_info(struct Scsi_Host *);
  95 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
  96
  97 static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth)
  98 {
  99         if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
 100                 queue_depth = ARCMSR_MAX_CMD_PERLUN;
 101         scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
 102         return queue_depth;
 103 }
 104
 105 static struct scsi_host_template arcmsr_scsi_host_template = {
 106         .module                 = THIS_MODULE,
 107         .name                   = "ARCMSR ARECA SATA RAID HOST Adapter" ARCMSR_DRIVER_VERSION,
 108         .info                   = arcmsr_info,
 109         .queuecommand           = arcmsr_queue_command,
 110         .eh_abort_handler       = arcmsr_abort,
 111         .eh_bus_reset_handler   = arcmsr_bus_reset,
 112         .bios_param             = arcmsr_bios_param,
 113         .change_queue_depth     = arcmsr_adjust_disk_queue_depth,
 114         .can_queue              = ARCMSR_MAX_OUTSTANDING_CMD,
 115         .this_id                = ARCMSR_SCSI_INITIATOR_ID,
 116         .sg_tablesize           = ARCMSR_MAX_SG_ENTRIES,
 117         .max_sectors            = ARCMSR_MAX_XFER_SECTORS,
 118         .cmd_per_lun            = ARCMSR_MAX_CMD_PERLUN,
 119         .use_clustering         = ENABLE_CLUSTERING,
 120         .shost_attrs            = arcmsr_host_attrs,
 121 };
 122
 123 static struct pci_device_id arcmsr_device_id_table[] = {
 124         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)},
 125         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)},
 126         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130)},
 127         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160)},
 128         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170)},
 129         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210)},
 130         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220)},
 131         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230)},
 132         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1260)},
 133         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1270)},
 134         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1280)},
 135         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1380)},
 136         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381)},
 137         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680)},
 138         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681)},
 139         {0, 0}, /* Terminating entry */
 140 };
 141 MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table);
 142 static struct pci_driver arcmsr_pci_driver = {
 143         .name                   = "arcmsr",
 144         .id_table               = arcmsr_device_id_table,
 145         .probe                  = arcmsr_probe,
 146         .remove                 = arcmsr_remove,
 147         .shutdown               = arcmsr_shutdown
 148 };
 149
 150 static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
 151 {
 152         irqreturn_t handle_state;
 153         struct AdapterControlBlock *acb;
 154         unsigned long flags;
 155
 156         acb = (struct AdapterControlBlock *)dev_id;
 157
 158         spin_lock_irqsave(acb->host->host_lock, flags);
 159         handle_state = arcmsr_interrupt(acb);
 160         spin_unlock_irqrestore(acb->host->host_lock, flags);
 161         return handle_state;
 162 }
 163
 164 static int arcmsr_bios_param(struct scsi_device *sdev,
 165                 struct block_device *bdev, sector_t capacity, int *geom)
 166 {
 167         int ret, heads, sectors, cylinders, total_capacity;
 168         unsigned char *buffer;/* return copy of block device's partition table */
 169
 170         buffer = scsi_bios_ptable(bdev);
 171         if (buffer) {
 172                 ret = scsi_partsize(buffer, capacity, &geom[2], &geom[0], &geom[1]);
 173                 kfree(buffer);
 174                 if (ret != -1)
 175                         return ret;
 176         }
 177         total_capacity = capacity;
 178         heads = 64;
 179         sectors = 32;
 180         cylinders = total_capacity / (heads * sectors);
 181         if (cylinders > 1024) {
 182                 heads = 255;
 183                 sectors = 63;
 184                 cylinders = total_capacity / (heads * sectors);
 185         }
 186         geom[0] = heads;
 187         geom[1] = sectors;
 188         geom[2] = cylinders;
 189         return 0;
 190 }
 191
 192 static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
 193 {
 194         struct pci_dev *pdev = acb->pdev;
 195         struct MessageUnit __iomem *reg = acb->pmu;
 196         u32 ccb_phyaddr_hi32;
 197         void *dma_coherent;
 198         dma_addr_t dma_coherent_handle, dma_addr;
 199         struct CommandControlBlock *ccb_tmp;
 200         int i, j;
 201
 202         dma_coherent = dma_alloc_coherent(&pdev->dev,
 203                         ARCMSR_MAX_FREECCB_NUM *
 204                         sizeof (struct CommandControlBlock) + 0x20,
 205                         &dma_coherent_handle, GFP_KERNEL);
 206         if (!dma_coherent)
 207                 return -ENOMEM;
 208
 209         acb->dma_coherent = dma_coherent;
 210         acb->dma_coherent_handle = dma_coherent_handle;
 211
 212         if (((unsigned long)dma_coherent & 0x1F)) {
 213                 dma_coherent = dma_coherent +
 214                         (0x20 - ((unsigned long)dma_coherent & 0x1F));
 215                 dma_coherent_handle = dma_coherent_handle +
 216                         (0x20 - ((unsigned long)dma_coherent_handle & 0x1F));
 217         }
 218
 219         dma_addr = dma_coherent_handle;
 220         ccb_tmp = (struct CommandControlBlock *)dma_coherent;
 221         for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
 222                 ccb_tmp->cdb_shifted_phyaddr = dma_addr >> 5;
 223                 ccb_tmp->acb = acb;
 224                 acb->pccb_pool[i] = ccb_tmp;
 225                 list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
 226                 dma_addr = dma_addr + sizeof (struct CommandControlBlock);
 227                 ccb_tmp++;
 228         }
 229
 230         acb->vir2phy_offset = (unsigned long)ccb_tmp -
 231                               (unsigned long)dma_addr;
 232         for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
 233                 for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
 234                         acb->devstate[i][j] = ARECA_RAID_GOOD;
 235
 236         /*
 237         ** here we need to tell iop 331 our ccb_tmp.HighPart
 238         ** if ccb_tmp.HighPart is not zero
 239         */
 240         ccb_phyaddr_hi32 = (uint32_t) ((dma_coherent_handle >> 16) >> 16);
 241         if (ccb_phyaddr_hi32 != 0) {
 242                 writel(ARCMSR_SIGNATURE_SET_CONFIG, &reg->message_rwbuffer[0]);
 243                 writel(ccb_phyaddr_hi32, &reg->message_rwbuffer[1]);
 244                 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, &reg->inbound_msgaddr0);
 245                 if (arcmsr_wait_msgint_ready(acb))
 246                         printk(KERN_NOTICE "arcmsr%d: "
 247                                "'set ccb high part physical address' timeout\n",
 248                                 acb->host->host_no);
 249         }
 250
 251         writel(readl(&reg->outbound_intmask) |
 252                         ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE,
 253                &reg->outbound_intmask);
 254         return 0;
 255 }
 256
 257 static int arcmsr_probe(struct pci_dev *pdev,
 258         const struct pci_device_id *id)
 259 {
 260         struct Scsi_Host *host;
 261         struct AdapterControlBlock *acb;
 262         uint8_t bus, dev_fun;
 263         int error;
 264
 265         error = pci_enable_device(pdev);
 266         if (error)
 267                 goto out;
 268         pci_set_master(pdev);
 269
 270         host = scsi_host_alloc(&arcmsr_scsi_host_template,
 271                         sizeof(struct AdapterControlBlock));
 272         if (!host) {
 273                 error = -ENOMEM;
 274                 goto out_disable_device;
 275         }
 276         acb = (struct AdapterControlBlock *)host->hostdata;
 277         memset(acb, 0, sizeof (struct AdapterControlBlock));
 278
 279         error = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
 280         if (error) {
 281                 error = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
 282                 if (error) {
 283                         printk(KERN_WARNING
 284                                "scsi%d: No suitable DMA mask available\n",
 285                                host->host_no);
 286                         goto out_host_put;
 287                 }
 288         }
 289         bus = pdev->bus->number;
 290         dev_fun = pdev->devfn;
 291         acb->host = host;
 292         acb->pdev = pdev;
 293         host->max_sectors = ARCMSR_MAX_XFER_SECTORS;
 294         host->max_lun = ARCMSR_MAX_TARGETLUN;
 295         host->max_id = ARCMSR_MAX_TARGETID;/*16:8*/
 296         host->max_cmd_len = 16;    /*this is issue of 64bit LBA, over 2T byte*/
 297         host->sg_tablesize = ARCMSR_MAX_SG_ENTRIES;
 298         host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous cmds */
 299         host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN;
 300         host->this_id = ARCMSR_SCSI_INITIATOR_ID;
 301         host->unique_id = (bus << 8) | dev_fun;
 302         host->irq = pdev->irq;
 303         error = pci_request_regions(pdev, "arcmsr");
 304         if (error)
 305                 goto out_host_put;
 306
 307         acb->pmu = ioremap(pci_resource_start(pdev, 0),
 308                            pci_resource_len(pdev, 0));
 309         if (!acb->pmu) {
 310                 printk(KERN_NOTICE "arcmsr%d: memory"
 311                         " mapping region fail \n", acb->host->host_no);
 312                 goto out_release_regions;
 313         }
 314         acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
 315                            ACB_F_MESSAGE_RQBUFFER_CLEARED |
 316                            ACB_F_MESSAGE_WQBUFFER_READED);
 317         acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
 318         INIT_LIST_HEAD(&acb->ccb_free_list);
 319
 320         error = arcmsr_alloc_ccb_pool(acb);
 321         if (error)
 322                 goto out_iounmap;
 323
 324         error = request_irq(pdev->irq, arcmsr_do_interrupt,
 325                         IRQF_DISABLED | IRQF_SHARED, "arcmsr", acb);
 326         if (error)
 327                 goto out_free_ccb_pool;
 328
 329         arcmsr_iop_init(acb);
 330         pci_set_drvdata(pdev, host);
 331
 332         error = scsi_add_host(host, &pdev->dev);
 333         if (error)
 334                 goto out_free_irq;
 335
 336         error = arcmsr_alloc_sysfs_attr(acb);
 337         if (error)
 338                 goto out_free_sysfs;
 339
 340         scsi_scan_host(host);
 341         return 0;
 342  out_free_sysfs:
 343  out_free_irq:
 344         free_irq(pdev->irq, acb);
 345  out_free_ccb_pool:
 346         arcmsr_free_ccb_pool(acb);
 347  out_iounmap:
 348         iounmap(acb->pmu);
 349  out_release_regions:
 350         pci_release_regions(pdev);
 351  out_host_put:
 352         scsi_host_put(host);
 353  out_disable_device:
 354         pci_disable_device(pdev);
 355  out:
 356         return error;
 357 }
 358
 359 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
 360 {
 361         struct MessageUnit __iomem *reg = acb->pmu;
 362
 363         writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, &reg->inbound_msgaddr0);
 364         if (arcmsr_wait_msgint_ready(acb))
 365                 printk(KERN_NOTICE
 366                         "arcmsr%d: wait 'abort all outstanding command' timeout \n"
 367                         , acb->host->host_no);
 368 }
 369
 370 static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb)
 371 {
 372         struct AdapterControlBlock *acb = ccb->acb;
 373         struct scsi_cmnd *pcmd = ccb->pcmd;
 374
 375         if (pcmd->use_sg != 0) {
 376                 struct scatterlist *sl;
 377
 378                 sl = (struct scatterlist *)pcmd->request_buffer;
 379                 pci_unmap_sg(acb->pdev, sl, pcmd->use_sg, pcmd->sc_data_direction);
 380         }
 381         else if (pcmd->request_bufflen != 0)
 382                 pci_unmap_single(acb->pdev,
 383                         pcmd->SCp.dma_handle,
 384                         pcmd->request_bufflen, pcmd->sc_data_direction);
 385 }
 386
 387 static void arcmsr_ccb_complete(struct CommandControlBlock *ccb, int stand_flag)
 388 {
 389         struct AdapterControlBlock *acb = ccb->acb;
 390         struct scsi_cmnd *pcmd = ccb->pcmd;
 391
 392         arcmsr_pci_unmap_dma(ccb);
 393         if (stand_flag == 1)
 394                 atomic_dec(&acb->ccboutstandingcount);
 395         ccb->startdone = ARCMSR_CCB_DONE;
 396         ccb->ccb_flags = 0;
 397         list_add_tail(&ccb->list, &acb->ccb_free_list);
 398         pcmd->scsi_done(pcmd);
 399 }
 400
 401 static void arcmsr_remove(struct pci_dev *pdev)
 402 {
 403         struct Scsi_Host *host = pci_get_drvdata(pdev);
 404         struct AdapterControlBlock *acb =
 405                 (struct AdapterControlBlock *) host->hostdata;
 406         struct MessageUnit __iomem *reg = acb->pmu;
 407         int poll_count = 0;
 408
 409         arcmsr_free_sysfs_attr(acb);
 410         scsi_remove_host(host);
 411         arcmsr_stop_adapter_bgrb(acb);
 412         arcmsr_flush_adapter_cache(acb);
 413         writel(readl(&reg->outbound_intmask) |
 414                 ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE,
 415                 &reg->outbound_intmask);
 416         acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
 417         acb->acb_flags &= ~ACB_F_IOP_INITED;
 418
 419         for (poll_count = 0; poll_count < 256; poll_count++) {
 420                 if (!atomic_read(&acb->ccboutstandingcount))
 421                         break;
 422                 arcmsr_interrupt(acb);
 423                 msleep(25);
 424         }
 425
 426         if (atomic_read(&acb->ccboutstandingcount)) {
 427                 int i;
 428
 429                 arcmsr_abort_allcmd(acb);
 430                 for (i = 0; i < ARCMSR_MAX_OUTSTANDING_CMD; i++)
 431                         readl(&reg->outbound_queueport);
 432                 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
 433                         struct CommandControlBlock *ccb = acb->pccb_pool[i];
 434                         if (ccb->startdone == ARCMSR_CCB_START) {
 435                                 ccb->startdone = ARCMSR_CCB_ABORTED;
 436                                 ccb->pcmd->result = DID_ABORT << 16;
 437                                 arcmsr_ccb_complete(ccb, 1);
 438                         }
 439                 }
 440         }
 441
 442         free_irq(pdev->irq, acb);
 443         iounmap(acb->pmu);
 444         arcmsr_free_ccb_pool(acb);
 445         pci_release_regions(pdev);
 446
 447         scsi_host_put(host);
 448
 449         pci_disable_device(pdev);
 450         pci_set_drvdata(pdev, NULL);
 451 }
 452
 453 static void arcmsr_shutdown(struct pci_dev *pdev)
 454 {
 455         struct Scsi_Host *host = pci_get_drvdata(pdev);
 456         struct AdapterControlBlock *acb =
 457                 (struct AdapterControlBlock *)host->hostdata;
 458
 459         arcmsr_stop_adapter_bgrb(acb);
 460         arcmsr_flush_adapter_cache(acb);
 461 }
 462
 463 static int arcmsr_module_init(void)
 464 {
 465         int error = 0;
 466
 467         error = pci_register_driver(&arcmsr_pci_driver);
 468         return error;
 469 }
 470
 471 static void arcmsr_module_exit(void)
 472 {
 473         pci_unregister_driver(&arcmsr_pci_driver);
 474 }
 475 module_init(arcmsr_module_init);
 476 module_exit(arcmsr_module_exit);
 477
 478 static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
 479 {
 480         struct MessageUnit __iomem *reg = acb->pmu;
 481         u32 orig_mask = readl(&reg->outbound_intmask);
 482
 483         writel(orig_mask | ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE,
 484                         &reg->outbound_intmask);
 485         return orig_mask;
 486 }
 487
 488 static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
 489                 u32 orig_mask)
 490 {
 491         struct MessageUnit __iomem *reg = acb->pmu;
 492         u32 mask;
 493
 494         mask = orig_mask & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
 495                              ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
 496         writel(mask, &reg->outbound_intmask);
 497 }
 498
 499 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
 500 {
 501         struct MessageUnit __iomem *reg=acb->pmu;
 502
 503         writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, &reg->inbound_msgaddr0);
 504         if (arcmsr_wait_msgint_ready(acb))
 505                 printk(KERN_NOTICE
 506                         "arcmsr%d: wait 'flush adapter cache' timeout \n"
 507                         , acb->host->host_no);
 508 }
 509
 510 static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
 511 {
 512         struct scsi_cmnd *pcmd = ccb->pcmd;
 513         struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
 514
 515         pcmd->result = DID_OK << 16;
 516         if (sensebuffer) {
 517                 int sense_data_length =
 518                         sizeof (struct SENSE_DATA) < sizeof (pcmd->sense_buffer)
 519                         ? sizeof (struct SENSE_DATA) : sizeof (pcmd->sense_buffer);
 520                 memset(sensebuffer, 0, sizeof (pcmd->sense_buffer));
 521                 memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length);
 522                 sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
 523                 sensebuffer->Valid = 1;
 524         }
 525 }
 526
 527 static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *acb)
 528 {
 529         struct MessageUnit __iomem *reg = acb->pmu;
 530         uint32_t Index;
 531         uint8_t Retries = 0x00;
 532
 533         do {
 534                 for (Index = 0; Index < 100; Index++) {
 535                         if (readl(&reg->outbound_intstatus)
 536                                 & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
 537                                 writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT
 538                                         , &reg->outbound_intstatus);
 539                                 return 0x00;
 540                         }
 541                         msleep_interruptible(10);
 542                 }/*max 1 seconds*/
 543         } while (Retries++ < 20);/*max 20 sec*/
 544         return 0xff;
 545 }
 546
 547 static void arcmsr_build_ccb(struct AdapterControlBlock *acb,
 548         struct CommandControlBlock *ccb, struct scsi_cmnd *pcmd)
 549 {
 550         struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
 551         int8_t *psge = (int8_t *)&arcmsr_cdb->u;
 552         uint32_t address_lo, address_hi;
 553         int arccdbsize = 0x30;
 554
 555         ccb->pcmd = pcmd;
 556         memset(arcmsr_cdb, 0, sizeof (struct ARCMSR_CDB));
 557         arcmsr_cdb->Bus = 0;
 558         arcmsr_cdb->TargetID = pcmd->device->id;
 559         arcmsr_cdb->LUN = pcmd->device->lun;
 560         arcmsr_cdb->Function = 1;
 561         arcmsr_cdb->CdbLength = (uint8_t)pcmd->cmd_len;
 562         arcmsr_cdb->Context = (unsigned long)arcmsr_cdb;
 563         memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len);
 564         if (pcmd->use_sg) {
 565                 int length, sgcount, i, cdb_sgcount = 0;
 566                 struct scatterlist *sl;
 567
 568                 /* Get Scatter Gather List from scsiport. */
 569                 sl = (struct scatterlist *) pcmd->request_buffer;
 570                 sgcount = pci_map_sg(acb->pdev, sl, pcmd->use_sg,
 571                                 pcmd->sc_data_direction);
 572                 /* map stor port SG list to our iop SG List. */
 573                 for (i = 0; i < sgcount; i++) {
 574                         /* Get the physical address of the current data pointer */
 575                         length = cpu_to_le32(sg_dma_len(sl));
 576                         address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sl)));
 577                         address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sl)));
 578                         if (address_hi == 0) {
 579                                 struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
 580
 581                                 pdma_sg->address = address_lo;
 582                                 pdma_sg->length = length;
 583                                 psge += sizeof (struct SG32ENTRY);
 584                                 arccdbsize += sizeof (struct SG32ENTRY);
 585                         } else {
 586                                 struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
 587
 588                                 pdma_sg->addresshigh = address_hi;
 589                                 pdma_sg->address = address_lo;
 590                                 pdma_sg->length = length|IS_SG64_ADDR;
 591                                 psge += sizeof (struct SG64ENTRY);
 592                                 arccdbsize += sizeof (struct SG64ENTRY);
 593                         }
 594                         sl++;
 595                         cdb_sgcount++;
 596                 }
 597                 arcmsr_cdb->sgcount = (uint8_t)cdb_sgcount;
 598                 arcmsr_cdb->DataLength = pcmd->request_bufflen;
 599                 if ( arccdbsize > 256)
 600                         arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
 601         } else if (pcmd->request_bufflen) {
 602                 dma_addr_t dma_addr;
 603                 dma_addr = pci_map_single(acb->pdev, pcmd->request_buffer,
 604                                 pcmd->request_bufflen, pcmd->sc_data_direction);
 605                 pcmd->SCp.dma_handle = dma_addr;
 606                 address_lo = cpu_to_le32(dma_addr_lo32(dma_addr));
 607                 address_hi = cpu_to_le32(dma_addr_hi32(dma_addr));
 608                 if (address_hi == 0) {
 609                         struct  SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
 610                         pdma_sg->address = address_lo;
 611                         pdma_sg->length = pcmd->request_bufflen;
 612                 } else {
 613                         struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
 614                         pdma_sg->addresshigh = address_hi;
 615                         pdma_sg->address = address_lo;
 616                         pdma_sg->length = pcmd->request_bufflen|IS_SG64_ADDR;
 617                 }
 618                 arcmsr_cdb->sgcount = 1;
 619                 arcmsr_cdb->DataLength = pcmd->request_bufflen;
 620         }
 621         if (pcmd->sc_data_direction == DMA_TO_DEVICE ) {
 622                 arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
 623                 ccb->ccb_flags |= CCB_FLAG_WRITE;
 624         }
 625 }
 626
 627 static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandControlBlock *ccb)
 628 {
 629         struct MessageUnit __iomem *reg = acb->pmu;
 630         uint32_t cdb_shifted_phyaddr = ccb->cdb_shifted_phyaddr;
 631         struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
 632
 633         atomic_inc(&acb->ccboutstandingcount);
 634         ccb->startdone = ARCMSR_CCB_START;
 635         if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE)
 636                 writel(cdb_shifted_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
 637                         &reg->inbound_queueport);
 638         else
 639                 writel(cdb_shifted_phyaddr, &reg->inbound_queueport);
 640 }
 641
 642 void arcmsr_post_Qbuffer(struct AdapterControlBlock *acb)
 643 {
 644         struct MessageUnit __iomem *reg = acb->pmu;
 645         struct QBUFFER __iomem *pwbuffer = (struct QBUFFER __iomem *) &reg->message_wbuffer;
 646         uint8_t __iomem *iop_data = (uint8_t __iomem *) pwbuffer->data;
 647         int32_t allxfer_len = 0;
 648
 649         if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) {
 650                 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
 651                 while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
 652                         && (allxfer_len < 124)) {
 653                         writeb(acb->wqbuffer[acb->wqbuf_firstindex], iop_data);
 654                         acb->wqbuf_firstindex++;
 655                         acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
 656                         iop_data++;
 657                         allxfer_len++;
 658                 }
 659                 writel(allxfer_len, &pwbuffer->data_len);
 660                 writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK
 661                         , &reg->inbound_doorbell);
 662         }
 663 }
 664
 665 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
 666 {
 667         struct MessageUnit __iomem *reg = acb->pmu;
 668
 669         acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
 670         writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, &reg->inbound_msgaddr0);
 671         if (arcmsr_wait_msgint_ready(acb))
 672                 printk(KERN_NOTICE
 673                         "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
 674                         , acb->host->host_no);
 675 }
 676
 677 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb)
 678 {
 679         dma_free_coherent(&acb->pdev->dev,
 680                 ARCMSR_MAX_FREECCB_NUM * sizeof (struct CommandControlBlock) + 0x20,
 681                 acb->dma_coherent,
 682                 acb->dma_coherent_handle);
 683 }
 684
 685 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
 686 {
 687         struct MessageUnit __iomem *reg = acb->pmu;
 688         struct CommandControlBlock *ccb;
 689         uint32_t flag_ccb, outbound_intstatus, outbound_doorbell;
 690
 691         outbound_intstatus = readl(&reg->outbound_intstatus)
 692                 & acb->outbound_int_enable;
 693         writel(outbound_intstatus, &reg->outbound_intstatus);
 694         if (outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
 695                 outbound_doorbell = readl(&reg->outbound_doorbell);
 696                 writel(outbound_doorbell, &reg->outbound_doorbell);
 697                 if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
 698                         struct QBUFFER __iomem * prbuffer =
 699                                 (struct QBUFFER __iomem *) &reg->message_rbuffer;
 700                         uint8_t __iomem * iop_data = (uint8_t __iomem *)prbuffer->data;
 701                         int32_t my_empty_len, iop_len, rqbuf_firstindex, rqbuf_lastindex;
 702
 703                         rqbuf_lastindex = acb->rqbuf_lastindex;
 704                         rqbuf_firstindex = acb->rqbuf_firstindex;
 705                         iop_len = readl(&prbuffer->data_len);
 706                         my_empty_len = (rqbuf_firstindex - rqbuf_lastindex - 1)
 707                                         &(ARCMSR_MAX_QBUFFER - 1);
 708                         if (my_empty_len >= iop_len) {
 709                                 while (iop_len > 0) {
 710                                         acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data);
 711                                         acb->rqbuf_lastindex++;
 712                                         acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
 713                                         iop_data++;
 714                                         iop_len--;
 715                                 }
 716                                 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK,
 717                                         &reg->inbound_doorbell);
 718                         } else
 719                                 acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
 720                 }
 721                 if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
 722                         acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED;
 723                         if (acb->wqbuf_firstindex != acb->wqbuf_lastindex) {
 724                                 struct QBUFFER __iomem * pwbuffer =
 725                                                 (struct QBUFFER __iomem *) &reg->message_wbuffer;
 726                                 uint8_t __iomem * iop_data = (uint8_t __iomem *) pwbuffer->data;
 727                                 int32_t allxfer_len = 0;
 728
 729                                 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
 730                                 while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex)
 731                                         && (allxfer_len < 124)) {
 732                                         writeb(acb->wqbuffer[acb->wqbuf_firstindex], iop_data);
 733                                         acb->wqbuf_firstindex++;
 734                                         acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
 735                                         iop_data++;
 736                                         allxfer_len++;
 737                                 }
 738                                 writel(allxfer_len, &pwbuffer->data_len);
 739                                 writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK,
 740                                         &reg->inbound_doorbell);
 741                         }
 742                         if (acb->wqbuf_firstindex == acb->wqbuf_lastindex)
 743                                 acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
 744                 }
 745         }
 746         if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
 747                 int id, lun;
 748                 /*
 749                 ****************************************************************
 750                 **               areca cdb command done
 751                 ****************************************************************
 752                 */
 753                 while (1) {
 754                         if ((flag_ccb = readl(&reg->outbound_queueport)) == 0xFFFFFFFF)
 755                                 break;/*chip FIFO no ccb for completion already*/
 756                         /* check if command done with no error*/
 757                         ccb = (struct CommandControlBlock *)(acb->vir2phy_offset +
 758                                 (flag_ccb << 5));
 759                         if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
 760                                 if (ccb->startdone == ARCMSR_CCB_ABORTED) {
 761                                         struct scsi_cmnd *abortcmd=ccb->pcmd;
 762                                         if (abortcmd) {
 763                                         abortcmd->result |= DID_ABORT >> 16;
 764                                         arcmsr_ccb_complete(ccb, 1);
 765                                         printk(KERN_NOTICE
 766                                                 "arcmsr%d: ccb='0x%p' isr got aborted command \n"
 767                                                 , acb->host->host_no, ccb);
 768                                         }
 769                                         continue;
 770                                 }
 771                                 printk(KERN_NOTICE
 772                                         "arcmsr%d: isr get an illegal ccb command done acb='0x%p'"
 773                                         "ccb='0x%p' ccbacb='0x%p' startdone = 0x%x"
 774                                         " ccboutstandingcount=%d \n"
 775                                         , acb->host->host_no
 776                                         , acb
 777                                         , ccb
 778                                         , ccb->acb
 779                                         , ccb->startdone
 780                                         , atomic_read(&acb->ccboutstandingcount));
 781                                 continue;
 782                         }
 783                         id = ccb->pcmd->device->id;
 784                         lun = ccb->pcmd->device->lun;
 785                         if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) {
 786                                 if (acb->devstate[id][lun] == ARECA_RAID_GONE)
 787                                         acb->devstate[id][lun] = ARECA_RAID_GOOD;
 788                                 ccb->pcmd->result = DID_OK << 16;
 789                                 arcmsr_ccb_complete(ccb, 1);
 790                         } else {
 791                                 switch(ccb->arcmsr_cdb.DeviceStatus) {
 792                                 case ARCMSR_DEV_SELECT_TIMEOUT: {
 793                                                 acb->devstate[id][lun] = ARECA_RAID_GONE;
 794                                                 ccb->pcmd->result = DID_TIME_OUT << 16;
 795                                                 arcmsr_ccb_complete(ccb, 1);
 796                                         }
 797                                         break;
 798                                 case ARCMSR_DEV_ABORTED:
 799                                 case ARCMSR_DEV_INIT_FAIL: {
 800                                                 acb->devstate[id][lun] = ARECA_RAID_GONE;
 801                                                 ccb->pcmd->result = DID_BAD_TARGET << 16;
 802                                                 arcmsr_ccb_complete(ccb, 1);
 803                                         }
 804                                         break;
 805                                 case ARCMSR_DEV_CHECK_CONDITION: {
 806                                                 acb->devstate[id][lun] = ARECA_RAID_GOOD;
 807                                                 arcmsr_report_sense_info(ccb);
 808                                                 arcmsr_ccb_complete(ccb, 1);
 809                                         }
 810                                         break;
 811                                 default:
 812                                         printk(KERN_NOTICE
 813                                                 "arcmsr%d: scsi id=%d lun=%d"
 814                                                 " isr get command error done,"
 815                                                 "but got unknown DeviceStatus = 0x%x \n"
 816                                                 , acb->host->host_no
 817                                                 , id
 818                                                 , lun
 819                                                 , ccb->arcmsr_cdb.DeviceStatus);
 820                                                 acb->devstate[id][lun] = ARECA_RAID_GONE;
 821                                                 ccb->pcmd->result = DID_NO_CONNECT << 16;
 822                                                 arcmsr_ccb_complete(ccb, 1);
 823                                         break;
 824                                 }
 825                         }
 826                 }/*drain reply FIFO*/
 827         }
 828         if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT))
 829                 return IRQ_NONE;
 830         return IRQ_HANDLED;
 831 }
 832
 833 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
 834 {
 835         if (acb) {
 836                 /* stop adapter background rebuild */
 837                 if (acb->acb_flags & ACB_F_MSG_START_BGRB) {
 838                         acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
 839                         arcmsr_stop_adapter_bgrb(acb);
 840                         arcmsr_flush_adapter_cache(acb);
 841                 }
 842         }
 843 }
 844
 845 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, struct scsi_cmnd *cmd)
 846 {
 847         struct MessageUnit __iomem *reg = acb->pmu;
 848         struct CMD_MESSAGE_FIELD *pcmdmessagefld;
 849         int retvalue = 0, transfer_len = 0;
 850         char *buffer;
 851         uint32_t controlcode = (uint32_t ) cmd->cmnd[5] << 24 |
 852                                                 (uint32_t ) cmd->cmnd[6] << 16 |
 853                                                 (uint32_t ) cmd->cmnd[7] << 8  |
 854                                                 (uint32_t ) cmd->cmnd[8];
 855                                         /* 4 bytes: Areca io control code */
 856         if (cmd->use_sg) {
 857                 struct scatterlist *sg = (struct scatterlist *)cmd->request_buffer;
 858
 859                 buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
 860                 if (cmd->use_sg > 1) {
 861                         retvalue = ARCMSR_MESSAGE_FAIL;
 862                         goto message_out;
 863                 }
 864                 transfer_len += sg->length;
 865         } else {
 866                 buffer = cmd->request_buffer;
 867                 transfer_len = cmd->request_bufflen;
 868         }
 869         if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
 870                 retvalue = ARCMSR_MESSAGE_FAIL;
 871                 goto message_out;
 872         }
 873         pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
 874         switch(controlcode) {
 875         case ARCMSR_MESSAGE_READ_RQBUFFER: {
 876                         unsigned long *ver_addr;
 877                         dma_addr_t buf_handle;
 878                         uint8_t *pQbuffer, *ptmpQbuffer;
 879                         int32_t allxfer_len = 0;
 880
 881                         ver_addr = pci_alloc_consistent(acb->pdev, 1032, &buf_handle);
 882                         if (!ver_addr) {
 883                                 retvalue = ARCMSR_MESSAGE_FAIL;
 884                                 goto message_out;
 885                         }
 886                         ptmpQbuffer = (uint8_t *) ver_addr;
 887                         while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
 888                                 && (allxfer_len < 1031)) {
 889                                 pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
 890                                 memcpy(ptmpQbuffer, pQbuffer, 1);
 891                                 acb->rqbuf_firstindex++;
 892                                 acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
 893                                 ptmpQbuffer++;
 894                                 allxfer_len++;
 895                         }
 896                         if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
 897                                 struct QBUFFER __iomem * prbuffer = (struct QBUFFER __iomem *)
 898                                                         &reg->message_rbuffer;
 899                                 uint8_t __iomem * iop_data = (uint8_t __iomem *)prbuffer->data;
 900                                 int32_t iop_len;
 901
 902                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
 903                                 iop_len = readl(&prbuffer->data_len);
 904                                 while (iop_len > 0) {
 905                                         acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data);
 906                                         acb->rqbuf_lastindex++;
 907                                         acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
 908                                         iop_data++;
 909                                         iop_len--;
 910                                 }
 911                                 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK,
 912                                                 &reg->inbound_doorbell);
 913                         }
 914                         memcpy(pcmdmessagefld->messagedatabuffer,
 915                                 (uint8_t *)ver_addr, allxfer_len);
 916                         pcmdmessagefld->cmdmessage.Length = allxfer_len;
 917                         pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
 918                         pci_free_consistent(acb->pdev, 1032, ver_addr, buf_handle);
 919                 }
 920                 break;
 921         case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
 922                         unsigned long *ver_addr;
 923                         dma_addr_t buf_handle;
 924                         int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
 925                         uint8_t *pQbuffer, *ptmpuserbuffer;
 926
 927                         ver_addr = pci_alloc_consistent(acb->pdev, 1032, &buf_handle);
 928                         if (!ver_addr) {
 929                                 retvalue = ARCMSR_MESSAGE_FAIL;
 930                                 goto message_out;
 931                         }
 932                         ptmpuserbuffer = (uint8_t *)ver_addr;
 933                         user_len = pcmdmessagefld->cmdmessage.Length;
 934                         memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len);
 935                         wqbuf_lastindex = acb->wqbuf_lastindex;
 936                         wqbuf_firstindex = acb->wqbuf_firstindex;
 937                         if (wqbuf_lastindex != wqbuf_firstindex) {
 938                                 struct SENSE_DATA *sensebuffer =
 939                                         (struct SENSE_DATA *)cmd->sense_buffer;
 940                                 arcmsr_post_Qbuffer(acb);
 941                                 /* has error report sensedata */
 942                                 sensebuffer->ErrorCode = 0x70;
 943                                 sensebuffer->SenseKey = ILLEGAL_REQUEST;
 944                                 sensebuffer->AdditionalSenseLength = 0x0A;
 945                                 sensebuffer->AdditionalSenseCode = 0x20;
 946                                 sensebuffer->Valid = 1;
 947                                 retvalue = ARCMSR_MESSAGE_FAIL;
 948                         } else {
 949                                 my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
 950                                                 &(ARCMSR_MAX_QBUFFER - 1);
 951                                 if (my_empty_len >= user_len) {
 952                                         while (user_len > 0) {
 953                                                 pQbuffer =
 954                                                 &acb->wqbuffer[acb->wqbuf_lastindex];
 955                                                 memcpy(pQbuffer, ptmpuserbuffer, 1);
 956                                                 acb->wqbuf_lastindex++;
 957                                                 acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
 958                                                 ptmpuserbuffer++;
 959                                                 user_len--;
 960                                         }
 961                                         if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
 962                                                 acb->acb_flags &=
 963                                                         ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
 964                                                 arcmsr_post_Qbuffer(acb);
 965                                         }
 966                                 } else {
 967                                         /* has error report sensedata */
 968                                         struct SENSE_DATA *sensebuffer =
 969                                                 (struct SENSE_DATA *)cmd->sense_buffer;
 970                                         sensebuffer->ErrorCode = 0x70;
 971                                         sensebuffer->SenseKey = ILLEGAL_REQUEST;
 972                                         sensebuffer->AdditionalSenseLength = 0x0A;
 973                                         sensebuffer->AdditionalSenseCode = 0x20;
 974                                         sensebuffer->Valid = 1;
 975                                         retvalue = ARCMSR_MESSAGE_FAIL;
 976                                 }
 977                         }
 978                         pci_free_consistent(acb->pdev, 1032, ver_addr, buf_handle);
 979                 }
 980                 break;
 981         case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
 982                         uint8_t *pQbuffer = acb->rqbuffer;
 983
 984                         if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
 985                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
 986                                 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK,
 987                                         &reg->inbound_doorbell);
 988                         }
 989                         acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
 990                         acb->rqbuf_firstindex = 0;
 991                         acb->rqbuf_lastindex = 0;
 992                         memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
 993                         pcmdmessagefld->cmdmessage.ReturnCode =
 994                                 ARCMSR_MESSAGE_RETURNCODE_OK;
 995                 }
 996                 break;
 997         case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
 998                         uint8_t *pQbuffer = acb->wqbuffer;
 999
1000                         if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1001                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1002                                 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK
1003                                                 , &reg->inbound_doorbell);
1004                         }
1005                         acb->acb_flags |=
1006                                 (ACB_F_MESSAGE_WQBUFFER_CLEARED |
1007                                         ACB_F_MESSAGE_WQBUFFER_READED);
1008                         acb->wqbuf_firstindex = 0;
1009                         acb->wqbuf_lastindex = 0;
1010                         memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1011                         pcmdmessagefld->cmdmessage.ReturnCode =
1012                                 ARCMSR_MESSAGE_RETURNCODE_OK;
1013                 }
1014                 break;
1015         case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
1016                         uint8_t *pQbuffer;
1017
1018                         if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1019                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1020                                 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK
1021                                                 , &reg->inbound_doorbell);
1022                         }
1023                         acb->acb_flags |=
1024                                 (ACB_F_MESSAGE_WQBUFFER_CLEARED
1025                                 | ACB_F_MESSAGE_RQBUFFER_CLEARED
1026                                 | ACB_F_MESSAGE_WQBUFFER_READED);
1027                         acb->rqbuf_firstindex = 0;
1028                         acb->rqbuf_lastindex = 0;
1029                         acb->wqbuf_firstindex = 0;
1030                         acb->wqbuf_lastindex = 0;
1031                         pQbuffer = acb->rqbuffer;
1032                         memset(pQbuffer, 0, sizeof (struct QBUFFER));
1033                         pQbuffer = acb->wqbuffer;
1034                         memset(pQbuffer, 0, sizeof (struct QBUFFER));
1035                         pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
1036                 }
1037                 break;
1038         case ARCMSR_MESSAGE_RETURN_CODE_3F: {
1039                         pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
1040                 }
1041                 break;
1042         case ARCMSR_MESSAGE_SAY_HELLO: {
1043                         int8_t * hello_string = "Hello! I am ARCMSR";
1044
1045                         memcpy(pcmdmessagefld->messagedatabuffer, hello_string
1046                                 , (int16_t)strlen(hello_string));
1047                         pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
1048                 }
1049                 break;
1050         case ARCMSR_MESSAGE_SAY_GOODBYE:
1051                 arcmsr_iop_parking(acb);
1052                 break;
1053         case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
1054                 arcmsr_flush_adapter_cache(acb);
1055                 break;
1056         default:
1057                 retvalue = ARCMSR_MESSAGE_FAIL;
1058         }
1059  message_out:
1060         if (cmd->use_sg) {
1061                 struct scatterlist *sg;
1062
1063                 sg = (struct scatterlist *) cmd->request_buffer;
1064                 kunmap_atomic(buffer - sg->offset, KM_IRQ0);
1065         }
1066         return retvalue;
1067 }
1068
1069 static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *acb)
1070 {
1071         struct list_head *head = &acb->ccb_free_list;
1072         struct CommandControlBlock *ccb = NULL;
1073
1074         if (!list_empty(head)) {
1075                 ccb = list_entry(head->next, struct CommandControlBlock, list);
1076                 list_del(head->next);
1077         }
1078         return ccb;
1079 }
1080
1081 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
1082                 struct scsi_cmnd *cmd)
1083 {
1084         switch (cmd->cmnd[0]) {
1085         case INQUIRY: {
1086                 unsigned char inqdata[36];
1087                 char *buffer;
1088
1089                 if (cmd->device->lun) {
1090                         cmd->result = (DID_TIME_OUT << 16);
1091                         cmd->scsi_done(cmd);
1092                         return;
1093                 }
1094                 inqdata[0] = TYPE_PROCESSOR;
1095                 /* Periph Qualifier & Periph Dev Type */
1096                 inqdata[1] = 0;
1097                 /* rem media bit & Dev Type Modifier */
1098                 inqdata[2] = 0;
1099                 /* ISO,ECMA,& ANSI versions */
1100                 inqdata[4] = 31;
1101                 /* length of additional data */
1102                 strncpy(&inqdata[8], "Areca   ", 8);
1103                 /* Vendor Identification */
1104                 strncpy(&inqdata[16], "RAID controller ", 16);
1105                 /* Product Identification */
1106                 strncpy(&inqdata[32], "R001", 4); /* Product Revision */
1107                 if (cmd->use_sg) {
1108                         struct scatterlist *sg;
1109
1110                         sg = (struct scatterlist *) cmd->request_buffer;
1111                         buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
1112                 } else {
1113                         buffer = cmd->request_buffer;
1114                 }
1115                 memcpy(buffer, inqdata, sizeof(inqdata));
1116                 if (cmd->use_sg) {
1117                         struct scatterlist *sg;
1118
1119                         sg = (struct scatterlist *) cmd->request_buffer;
1120                         kunmap_atomic(buffer - sg->offset, KM_IRQ0);
1121                 }
1122                 cmd->scsi_done(cmd);
1123         }
1124         break;
1125         case WRITE_BUFFER:
1126         case READ_BUFFER: {
1127                 if (arcmsr_iop_message_xfer(acb, cmd))
1128                         cmd->result = (DID_ERROR << 16);
1129                 cmd->scsi_done(cmd);
1130         }
1131         break;
1132         default:
1133                 cmd->scsi_done(cmd);
1134         }
1135 }
1136
1137 static int arcmsr_queue_command(struct scsi_cmnd *cmd,
1138         void (* done)(struct scsi_cmnd *))
1139 {
1140         struct Scsi_Host *host = cmd->device->host;
1141         struct AdapterControlBlock *acb =
1142                 (struct AdapterControlBlock *) host->hostdata;
1143         struct CommandControlBlock *ccb;
1144         int target = cmd->device->id;
1145         int lun = cmd->device->lun;
1146
1147         cmd->scsi_done = done;
1148         cmd->host_scribble = NULL;
1149         cmd->result = 0;
1150         if (acb->acb_flags & ACB_F_BUS_RESET) {
1151                 printk(KERN_NOTICE "arcmsr%d: bus reset"
1152                         " and return busy \n"
1153                         , acb->host->host_no);
1154                 return SCSI_MLQUEUE_HOST_BUSY;
1155         }
1156         if(target == 16) {
1157                 /* virtual device for iop message transfer */
1158                 arcmsr_handle_virtual_command(acb, cmd);
1159                 return 0;
1160         }
1161         if (acb->devstate[target][lun] == ARECA_RAID_GONE) {
1162                 uint8_t block_cmd;
1163
1164                 block_cmd = cmd->cmnd[0] & 0x0f;
1165                 if (block_cmd == 0x08 || block_cmd == 0x0a) {
1166                         printk(KERN_NOTICE
1167                                 "arcmsr%d: block 'read/write'"
1168                                 "command with gone raid volume"
1169                                 " Cmd=%2x, TargetId=%d, Lun=%d \n"
1170                                 , acb->host->host_no
1171                                 , cmd->cmnd[0]
1172                                 , target, lun);
1173                         cmd->result = (DID_NO_CONNECT << 16);
1174                         cmd->scsi_done(cmd);
1175                         return 0;
1176                 }
1177         }
1178         if (atomic_read(&acb->ccboutstandingcount) >=
1179                         ARCMSR_MAX_OUTSTANDING_CMD)
1180                 return SCSI_MLQUEUE_HOST_BUSY;
1181
1182         ccb = arcmsr_get_freeccb(acb);
1183         if (!ccb)
1184                 return SCSI_MLQUEUE_HOST_BUSY;
1185         arcmsr_build_ccb(acb, ccb, cmd);
1186         arcmsr_post_ccb(acb, ccb);
1187         return 0;
1188 }
1189
1190 static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
1191 {
1192         struct MessageUnit __iomem *reg = acb->pmu;
1193         char *acb_firm_model = acb->firm_model;
1194         char *acb_firm_version = acb->firm_version;
1195         char __iomem *iop_firm_model = (char __iomem *) &reg->message_rwbuffer[15];
1196         char __iomem *iop_firm_version = (char __iomem *) &reg->message_rwbuffer[17];
1197         int count;
1198
1199         writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
1200         if (arcmsr_wait_msgint_ready(acb))
1201                 printk(KERN_NOTICE
1202                         "arcmsr%d: wait "
1203                         "'get adapter firmware miscellaneous data' timeout \n"
1204                         , acb->host->host_no);
1205         count = 8;
1206         while (count) {
1207                 *acb_firm_model = readb(iop_firm_model);
1208                 acb_firm_model++;
1209                 iop_firm_model++;
1210                 count--;
1211         }
1212         count = 16;
1213         while (count) {
1214                 *acb_firm_version = readb(iop_firm_version);
1215                 acb_firm_version++;
1216                 iop_firm_version++;
1217                 count--;
1218         }
1219         printk(KERN_INFO
1220                 "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n"
1221                 , acb->host->host_no
1222                 , acb->firm_version);
1223         acb->firm_request_len = readl(&reg->message_rwbuffer[1]);
1224         acb->firm_numbers_queue = readl(&reg->message_rwbuffer[2]);
1225         acb->firm_sdram_size = readl(&reg->message_rwbuffer[3]);
1226         acb->firm_hd_channels = readl(&reg->message_rwbuffer[4]);
1227 }
1228
1229 static void arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
1230         struct CommandControlBlock *poll_ccb)
1231 {
1232         struct MessageUnit __iomem *reg = acb->pmu;
1233         struct CommandControlBlock *ccb;
1234         uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0;
1235         int id, lun;
1236
1237  polling_ccb_retry:
1238         poll_count++;
1239         outbound_intstatus = readl(&reg->outbound_intstatus)
1240                                         & acb->outbound_int_enable;
1241         writel(outbound_intstatus, &reg->outbound_intstatus);/*clear interrupt*/
1242         while (1) {
1243                 if ((flag_ccb = readl(&reg->outbound_queueport)) == 0xFFFFFFFF) {
1244                         if (poll_ccb_done)
1245                                 break;
1246                         else {
1247                                 msleep(25);
1248                                 if (poll_count > 100)
1249                                         break;
1250                                 goto polling_ccb_retry;
1251                         }
1252                 }
1253                 ccb = (struct CommandControlBlock *)
1254                         (acb->vir2phy_offset + (flag_ccb << 5));
1255                 if ((ccb->acb != acb) ||
1256                         (ccb->startdone != ARCMSR_CCB_START)) {
1257                         if ((ccb->startdone == ARCMSR_CCB_ABORTED) ||
1258                                 (ccb == poll_ccb)) {
1259                                 printk(KERN_NOTICE
1260                                         "arcmsr%d: scsi id=%d lun=%d ccb='0x%p'"
1261                                         " poll command abort successfully \n"
1262                                         , acb->host->host_no
1263                                         , ccb->pcmd->device->id
1264                                         , ccb->pcmd->device->lun
1265                                         , ccb);
1266                                 ccb->pcmd->result = DID_ABORT << 16;
1267                                 arcmsr_ccb_complete(ccb, 1);
1268                                 poll_ccb_done = 1;
1269                                 continue;
1270                         }
1271                         printk(KERN_NOTICE
1272                                 "arcmsr%d: polling get an illegal ccb"
1273                                 " command done ccb='0x%p'"
1274                                 "ccboutstandingcount=%d \n"
1275                                 , acb->host->host_no
1276                                 , ccb
1277                                 , atomic_read(&acb->ccboutstandingcount));
1278                         continue;
1279                 }
1280                 id = ccb->pcmd->device->id;
1281                 lun = ccb->pcmd->device->lun;
1282                 if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) {
1283                         if (acb->devstate[id][lun] == ARECA_RAID_GONE)
1284                                 acb->devstate[id][lun] = ARECA_RAID_GOOD;
1285                         ccb->pcmd->result = DID_OK << 16;
1286                         arcmsr_ccb_complete(ccb, 1);
1287                 } else {
1288                         switch(ccb->arcmsr_cdb.DeviceStatus) {
1289                         case ARCMSR_DEV_SELECT_TIMEOUT: {
1290                                         acb->devstate[id][lun] = ARECA_RAID_GONE;
1291                                         ccb->pcmd->result = DID_TIME_OUT << 16;
1292                                         arcmsr_ccb_complete(ccb, 1);
1293                                 }
1294                                 break;
1295                         case ARCMSR_DEV_ABORTED:
1296                         case ARCMSR_DEV_INIT_FAIL: {
1297                                         acb->devstate[id][lun] = ARECA_RAID_GONE;
1298                                         ccb->pcmd->result = DID_BAD_TARGET << 16;
1299                                         arcmsr_ccb_complete(ccb, 1);
1300                                 }
1301                                 break;
1302                         case ARCMSR_DEV_CHECK_CONDITION: {
1303                                         acb->devstate[id][lun] = ARECA_RAID_GOOD;
1304                                         arcmsr_report_sense_info(ccb);
1305                                         arcmsr_ccb_complete(ccb, 1);
1306                                 }
1307                                 break;
1308                         default:
1309                                 printk(KERN_NOTICE
1310                                         "arcmsr%d: scsi id=%d lun=%d"
1311                                         " polling and getting command error done"
1312                                         "but got unknown DeviceStatus = 0x%x \n"
1313                                         , acb->host->host_no
1314                                         , id
1315                                         , lun
1316                                         , ccb->arcmsr_cdb.DeviceStatus);
1317                                 acb->devstate[id][lun] = ARECA_RAID_GONE;
1318                                 ccb->pcmd->result = DID_BAD_TARGET << 16;
1319                                 arcmsr_ccb_complete(ccb, 1);
1320                                 break;
1321                         }
1322                 }
1323         }
1324 }
1325
1326 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
1327 {
1328         struct MessageUnit __iomem *reg = acb->pmu;
1329         uint32_t intmask_org, mask, outbound_doorbell, firmware_state = 0;
1330
1331         do {
1332                 firmware_state = readl(&reg->outbound_msgaddr1);
1333         } while (!(firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK));
1334         intmask_org = readl(&reg->outbound_intmask)
1335                         | ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE;
1336         arcmsr_get_firmware_spec(acb);
1337
1338         acb->acb_flags |= ACB_F_MSG_START_BGRB;
1339         writel(ARCMSR_INBOUND_MESG0_START_BGRB, &reg->inbound_msgaddr0);
1340         if (arcmsr_wait_msgint_ready(acb)) {
1341                 printk(KERN_NOTICE "arcmsr%d: "
1342                         "wait 'start adapter background rebulid' timeout\n",
1343                         acb->host->host_no);
1344         }
1345
1346         outbound_doorbell = readl(&reg->outbound_doorbell);
1347         writel(outbound_doorbell, &reg->outbound_doorbell);
1348         writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, &reg->inbound_doorbell);
1349         mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE
1350                         | ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
1351         writel(intmask_org & mask, &reg->outbound_intmask);
1352         acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
1353         acb->acb_flags |= ACB_F_IOP_INITED;
1354 }
1355
1356 static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
1357 {
1358         struct MessageUnit __iomem *reg = acb->pmu;
1359         struct CommandControlBlock *ccb;
1360         uint32_t intmask_org;
1361         int i = 0;
1362
1363         if (atomic_read(&acb->ccboutstandingcount) != 0) {
1364                 /* talk to iop 331 outstanding command aborted */
1365                 arcmsr_abort_allcmd(acb);
1366                 /* wait for 3 sec for all command aborted*/
1367                 msleep_interruptible(3000);
1368                 /* disable all outbound interrupt */
1369                 intmask_org = arcmsr_disable_outbound_ints(acb);
1370                 /* clear all outbound posted Q */
1371                 for (i = 0; i < ARCMSR_MAX_OUTSTANDING_CMD; i++)
1372                         readl(&reg->outbound_queueport);
1373                 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
1374                         ccb = acb->pccb_pool[i];
1375                         if ((ccb->startdone == ARCMSR_CCB_START) ||
1376                                 (ccb->startdone == ARCMSR_CCB_ABORTED)) {
1377                                 ccb->startdone = ARCMSR_CCB_ABORTED;
1378                                 ccb->pcmd->result = DID_ABORT << 16;
1379                                 arcmsr_ccb_complete(ccb, 1);
1380                         }
1381                 }
1382                 /* enable all outbound interrupt */
1383                 arcmsr_enable_outbound_ints(acb, intmask_org);
1384         }
1385         atomic_set(&acb->ccboutstandingcount, 0);
1386 }
1387
1388 static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
1389 {
1390         struct AdapterControlBlock *acb =
1391                 (struct AdapterControlBlock *)cmd->device->host->hostdata;
1392         int i;
1393
1394         acb->num_resets++;
1395         acb->acb_flags |= ACB_F_BUS_RESET;
1396         for (i = 0; i < 400; i++) {
1397                 if (!atomic_read(&acb->ccboutstandingcount))
1398                         break;
1399                 arcmsr_interrupt(acb);
1400                 msleep(25);
1401         }
1402         arcmsr_iop_reset(acb);
1403         acb->acb_flags &= ~ACB_F_BUS_RESET;
1404         return SUCCESS;
1405 }
1406
1407 static void arcmsr_abort_one_cmd(struct AdapterControlBlock *acb,
1408                 struct CommandControlBlock *ccb)
1409 {
1410         u32 intmask;
1411
1412         ccb->startdone = ARCMSR_CCB_ABORTED;
1413
1414         /*
1415         ** Wait for 3 sec for all command done.
1416         */
1417         msleep_interruptible(3000);
1418
1419         intmask = arcmsr_disable_outbound_ints(acb);
1420         arcmsr_polling_ccbdone(acb, ccb);
1421         arcmsr_enable_outbound_ints(acb, intmask);
1422 }
1423
1424 static int arcmsr_abort(struct scsi_cmnd *cmd)
1425 {
1426         struct AdapterControlBlock *acb =
1427                 (struct AdapterControlBlock *)cmd->device->host->hostdata;
1428         int i = 0;
1429
1430         printk(KERN_NOTICE
1431                 "arcmsr%d: abort device command of scsi id=%d lun=%d \n",
1432                 acb->host->host_no, cmd->device->id, cmd->device->lun);
1433         acb->num_aborts++;
1434
1435         /*
1436         ************************************************
1437         ** the all interrupt service routine is locked
1438         ** we need to handle it as soon as possible and exit
1439         ************************************************
1440         */
1441         if (!atomic_read(&acb->ccboutstandingcount))
1442                 return SUCCESS;
1443
1444         for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
1445                 struct CommandControlBlock *ccb = acb->pccb_pool[i];
1446                 if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) {
1447                         arcmsr_abort_one_cmd(acb, ccb);
1448                         break;
1449                 }
1450         }
1451
1452         return SUCCESS;
1453 }
1454
1455 static const char *arcmsr_info(struct Scsi_Host *host)
1456 {
1457         struct AdapterControlBlock *acb =
1458                 (struct AdapterControlBlock *) host->hostdata;
1459         static char buf[256];
1460         char *type;
1461         int raid6 = 1;
1462
1463         switch (acb->pdev->device) {
1464         case PCI_DEVICE_ID_ARECA_1110:
1465         case PCI_DEVICE_ID_ARECA_1210:
1466                 raid6 = 0;
1467                 /*FALLTHRU*/
1468         case PCI_DEVICE_ID_ARECA_1120:
1469         case PCI_DEVICE_ID_ARECA_1130:
1470         case PCI_DEVICE_ID_ARECA_1160:
1471         case PCI_DEVICE_ID_ARECA_1170:
1472         case PCI_DEVICE_ID_ARECA_1220:
1473         case PCI_DEVICE_ID_ARECA_1230:
1474         case PCI_DEVICE_ID_ARECA_1260:
1475         case PCI_DEVICE_ID_ARECA_1270:
1476         case PCI_DEVICE_ID_ARECA_1280:
1477                 type = "SATA";
1478                 break;
1479         case PCI_DEVICE_ID_ARECA_1380:
1480         case PCI_DEVICE_ID_ARECA_1381:
1481         case PCI_DEVICE_ID_ARECA_1680:
1482         case PCI_DEVICE_ID_ARECA_1681:
1483                 type = "SAS";
1484                 break;
1485         default:
1486                 type = "X-TYPE";
1487                 break;
1488         }
1489         sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n        %s",
1490                         type, raid6 ? "( RAID6 capable)" : "",
1491                         ARCMSR_DRIVER_VERSION);
1492         return buf;
1493 }
1494
1495