drivers/scsi/hptiop.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * HighPoint RR3xxx/4xxx controller driver for Linux
   4  * Copyright (C) 2006-2015 HighPoint Technologies, Inc. All Rights Reserved.
   5  *
   6  * Please report bugs/comments/suggestions to linux@highpoint-tech.com
   7  *
   8  * For more information, visit http://www.highpoint-tech.com
   9  */
  10 #include <linux/module.h>
  11 #include <linux/types.h>
  12 #include <linux/string.h>
  13 #include <linux/kernel.h>
  14 #include <linux/pci.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/errno.h>
  17 #include <linux/delay.h>
  18 #include <linux/timer.h>
  19 #include <linux/spinlock.h>
  20 #include <linux/gfp.h>
  21 #include <linux/uaccess.h>
  22 #include <asm/io.h>
  23 #include <asm/div64.h>
  24 #include <scsi/scsi_cmnd.h>
  25 #include <scsi/scsi_device.h>
  26 #include <scsi/scsi.h>
  27 #include <scsi/scsi_tcq.h>
  28 #include <scsi/scsi_host.h>
  29
  30 #include "hptiop.h"
  31
  32 MODULE_AUTHOR("HighPoint Technologies, Inc.");
  33 MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver");
  34
  35 static char driver_name[] = "hptiop";
  36 static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
  37 static const char driver_ver[] = "v1.10.0";
  38
  39 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec);
  40 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
  41                                 struct hpt_iop_request_scsi_command *req);
  42 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag);
  43 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag);
  44 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
  45
  46 static int iop_wait_ready_itl(struct hptiop_hba *hba, u32 millisec)
  47 {
  48         u32 req = 0;
  49         int i;
  50
  51         for (i = 0; i < millisec; i++) {
  52                 req = readl(&hba->u.itl.iop->inbound_queue);
  53                 if (req != IOPMU_QUEUE_EMPTY)
  54                         break;
  55                 msleep(1);
  56         }
  57
  58         if (req != IOPMU_QUEUE_EMPTY) {
  59                 writel(req, &hba->u.itl.iop->outbound_queue);
  60                 readl(&hba->u.itl.iop->outbound_intstatus);
  61                 return 0;
  62         }
  63
  64         return -1;
  65 }
  66
  67 static int iop_wait_ready_mv(struct hptiop_hba *hba, u32 millisec)
  68 {
  69         return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec);
  70 }
  71
  72 static int iop_wait_ready_mvfrey(struct hptiop_hba *hba, u32 millisec)
  73 {
  74         return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec);
  75 }
  76
  77 static void hptiop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
  78 {
  79         if (tag & IOPMU_QUEUE_ADDR_HOST_BIT)
  80                 hptiop_host_request_callback_itl(hba,
  81                                 tag & ~IOPMU_QUEUE_ADDR_HOST_BIT);
  82         else
  83                 hptiop_iop_request_callback_itl(hba, tag);
  84 }
  85
  86 static void hptiop_drain_outbound_queue_itl(struct hptiop_hba *hba)
  87 {
  88         u32 req;
  89
  90         while ((req = readl(&hba->u.itl.iop->outbound_queue)) !=
  91                                                 IOPMU_QUEUE_EMPTY) {
  92
  93                 if (req & IOPMU_QUEUE_MASK_HOST_BITS)
  94                         hptiop_request_callback_itl(hba, req);
  95                 else {
  96                         struct hpt_iop_request_header __iomem * p;
  97
  98                         p = (struct hpt_iop_request_header __iomem *)
  99                                 ((char __iomem *)hba->u.itl.iop + req);
 100
 101                         if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) {
 102                                 if (readl(&p->context))
 103                                         hptiop_request_callback_itl(hba, req);
 104                                 else
 105                                         writel(1, &p->context);
 106                         }
 107                         else
 108                                 hptiop_request_callback_itl(hba, req);
 109                 }
 110         }
 111 }
 112
 113 static int iop_intr_itl(struct hptiop_hba *hba)
 114 {
 115         struct hpt_iopmu_itl __iomem *iop = hba->u.itl.iop;
 116         void __iomem *plx = hba->u.itl.plx;
 117         u32 status;
 118         int ret = 0;
 119
 120         if (plx && readl(plx + 0x11C5C) & 0xf)
 121                 writel(1, plx + 0x11C60);
 122
 123         status = readl(&iop->outbound_intstatus);
 124
 125         if (status & IOPMU_OUTBOUND_INT_MSG0) {
 126                 u32 msg = readl(&iop->outbound_msgaddr0);
 127
 128                 dprintk("received outbound msg %x\n", msg);
 129                 writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus);
 130                 hptiop_message_callback(hba, msg);
 131                 ret = 1;
 132         }
 133
 134         if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) {
 135                 hptiop_drain_outbound_queue_itl(hba);
 136                 ret = 1;
 137         }
 138
 139         return ret;
 140 }
 141
 142 static u64 mv_outbound_read(struct hpt_iopmu_mv __iomem *mu)
 143 {
 144         u32 outbound_tail = readl(&mu->outbound_tail);
 145         u32 outbound_head = readl(&mu->outbound_head);
 146
 147         if (outbound_tail != outbound_head) {
 148                 u64 p;
 149
 150                 memcpy_fromio(&p, &mu->outbound_q[mu->outbound_tail], 8);
 151                 outbound_tail++;
 152
 153                 if (outbound_tail == MVIOP_QUEUE_LEN)
 154                         outbound_tail = 0;
 155                 writel(outbound_tail, &mu->outbound_tail);
 156                 return p;
 157         } else
 158                 return 0;
 159 }
 160
 161 static void mv_inbound_write(u64 p, struct hptiop_hba *hba)
 162 {
 163         u32 inbound_head = readl(&hba->u.mv.mu->inbound_head);
 164         u32 head = inbound_head + 1;
 165
 166         if (head == MVIOP_QUEUE_LEN)
 167                 head = 0;
 168
 169         memcpy_toio(&hba->u.mv.mu->inbound_q[inbound_head], &p, 8);
 170         writel(head, &hba->u.mv.mu->inbound_head);
 171         writel(MVIOP_MU_INBOUND_INT_POSTQUEUE,
 172                         &hba->u.mv.regs->inbound_doorbell);
 173 }
 174
 175 static void hptiop_request_callback_mv(struct hptiop_hba *hba, u64 tag)
 176 {
 177         u32 req_type = (tag >> 5) & 0x7;
 178         struct hpt_iop_request_scsi_command *req;
 179
 180         dprintk("hptiop_request_callback_mv: tag=%llx\n", tag);
 181
 182         BUG_ON((tag & MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT) == 0);
 183
 184         switch (req_type) {
 185         case IOP_REQUEST_TYPE_GET_CONFIG:
 186         case IOP_REQUEST_TYPE_SET_CONFIG:
 187                 hba->msg_done = 1;
 188                 break;
 189
 190         case IOP_REQUEST_TYPE_SCSI_COMMAND:
 191                 req = hba->reqs[tag >> 8].req_virt;
 192                 if (likely(tag & MVIOP_MU_QUEUE_REQUEST_RESULT_BIT))
 193                         req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
 194
 195                 hptiop_finish_scsi_req(hba, tag>>8, req);
 196                 break;
 197
 198         default:
 199                 break;
 200         }
 201 }
 202
 203 static int iop_intr_mv(struct hptiop_hba *hba)
 204 {
 205         u32 status;
 206         int ret = 0;
 207
 208         status = readl(&hba->u.mv.regs->outbound_doorbell);
 209         writel(~status, &hba->u.mv.regs->outbound_doorbell);
 210
 211         if (status & MVIOP_MU_OUTBOUND_INT_MSG) {
 212                 u32 msg;
 213                 msg = readl(&hba->u.mv.mu->outbound_msg);
 214                 dprintk("received outbound msg %x\n", msg);
 215                 hptiop_message_callback(hba, msg);
 216                 ret = 1;
 217         }
 218
 219         if (status & MVIOP_MU_OUTBOUND_INT_POSTQUEUE) {
 220                 u64 tag;
 221
 222                 while ((tag = mv_outbound_read(hba->u.mv.mu)))
 223                         hptiop_request_callback_mv(hba, tag);
 224                 ret = 1;
 225         }
 226
 227         return ret;
 228 }
 229
 230 static void hptiop_request_callback_mvfrey(struct hptiop_hba *hba, u32 _tag)
 231 {
 232         u32 req_type = _tag & 0xf;
 233         struct hpt_iop_request_scsi_command *req;
 234
 235         switch (req_type) {
 236         case IOP_REQUEST_TYPE_GET_CONFIG:
 237         case IOP_REQUEST_TYPE_SET_CONFIG:
 238                 hba->msg_done = 1;
 239                 break;
 240
 241         case IOP_REQUEST_TYPE_SCSI_COMMAND:
 242                 req = hba->reqs[(_tag >> 4) & 0xff].req_virt;
 243                 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT))
 244                         req->header.result = IOP_RESULT_SUCCESS;
 245                 hptiop_finish_scsi_req(hba, (_tag >> 4) & 0xff, req);
 246                 break;
 247
 248         default:
 249                 break;
 250         }
 251 }
 252
 253 static int iop_intr_mvfrey(struct hptiop_hba *hba)
 254 {
 255         u32 _tag, status, cptr, cur_rptr;
 256         int ret = 0;
 257
 258         if (hba->initialized)
 259                 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
 260
 261         status = readl(&(hba->u.mvfrey.mu->f0_doorbell));
 262         if (status) {
 263                 writel(status, &(hba->u.mvfrey.mu->f0_doorbell));
 264                 if (status & CPU_TO_F0_DRBL_MSG_BIT) {
 265                         u32 msg = readl(&(hba->u.mvfrey.mu->cpu_to_f0_msg_a));
 266                         dprintk("received outbound msg %x\n", msg);
 267                         hptiop_message_callback(hba, msg);
 268                 }
 269                 ret = 1;
 270         }
 271
 272         status = readl(&(hba->u.mvfrey.mu->isr_cause));
 273         if (status) {
 274                 writel(status, &(hba->u.mvfrey.mu->isr_cause));
 275                 do {
 276                         cptr = *hba->u.mvfrey.outlist_cptr & 0xff;
 277                         cur_rptr = hba->u.mvfrey.outlist_rptr;
 278                         while (cur_rptr != cptr) {
 279                                 cur_rptr++;
 280                                 if (cur_rptr == hba->u.mvfrey.list_count)
 281                                         cur_rptr = 0;
 282
 283                                 _tag = hba->u.mvfrey.outlist[cur_rptr].val;
 284                                 BUG_ON(!(_tag & IOPMU_QUEUE_MASK_HOST_BITS));
 285                                 hptiop_request_callback_mvfrey(hba, _tag);
 286                                 ret = 1;
 287                         }
 288                         hba->u.mvfrey.outlist_rptr = cur_rptr;
 289                 } while (cptr != (*hba->u.mvfrey.outlist_cptr & 0xff));
 290         }
 291
 292         if (hba->initialized)
 293                 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
 294
 295         return ret;
 296 }
 297
 298 static int iop_send_sync_request_itl(struct hptiop_hba *hba,
 299                                         void __iomem *_req, u32 millisec)
 300 {
 301         struct hpt_iop_request_header __iomem *req = _req;
 302         u32 i;
 303
 304         writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, &req->flags);
 305         writel(0, &req->context);
 306         writel((unsigned long)req - (unsigned long)hba->u.itl.iop,
 307                         &hba->u.itl.iop->inbound_queue);
 308         readl(&hba->u.itl.iop->outbound_intstatus);
 309
 310         for (i = 0; i < millisec; i++) {
 311                 iop_intr_itl(hba);
 312                 if (readl(&req->context))
 313                         return 0;
 314                 msleep(1);
 315         }
 316
 317         return -1;
 318 }
 319
 320 static int iop_send_sync_request_mv(struct hptiop_hba *hba,
 321                                         u32 size_bits, u32 millisec)
 322 {
 323         struct hpt_iop_request_header *reqhdr = hba->u.mv.internal_req;
 324         u32 i;
 325
 326         hba->msg_done = 0;
 327         reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST);
 328         mv_inbound_write(hba->u.mv.internal_req_phy |
 329                         MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bits, hba);
 330
 331         for (i = 0; i < millisec; i++) {
 332                 iop_intr_mv(hba);
 333                 if (hba->msg_done)
 334                         return 0;
 335                 msleep(1);
 336         }
 337         return -1;
 338 }
 339
 340 static int iop_send_sync_request_mvfrey(struct hptiop_hba *hba,
 341                                         u32 size_bits, u32 millisec)
 342 {
 343         struct hpt_iop_request_header *reqhdr =
 344                 hba->u.mvfrey.internal_req.req_virt;
 345         u32 i;
 346
 347         hba->msg_done = 0;
 348         reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST);
 349         hba->ops->post_req(hba, &(hba->u.mvfrey.internal_req));
 350
 351         for (i = 0; i < millisec; i++) {
 352                 iop_intr_mvfrey(hba);
 353                 if (hba->msg_done)
 354                         break;
 355                 msleep(1);
 356         }
 357         return hba->msg_done ? 0 : -1;
 358 }
 359
 360 static void hptiop_post_msg_itl(struct hptiop_hba *hba, u32 msg)
 361 {
 362         writel(msg, &hba->u.itl.iop->inbound_msgaddr0);
 363         readl(&hba->u.itl.iop->outbound_intstatus);
 364 }
 365
 366 static void hptiop_post_msg_mv(struct hptiop_hba *hba, u32 msg)
 367 {
 368         writel(msg, &hba->u.mv.mu->inbound_msg);
 369         writel(MVIOP_MU_INBOUND_INT_MSG, &hba->u.mv.regs->inbound_doorbell);
 370         readl(&hba->u.mv.regs->inbound_doorbell);
 371 }
 372
 373 static void hptiop_post_msg_mvfrey(struct hptiop_hba *hba, u32 msg)
 374 {
 375         writel(msg, &(hba->u.mvfrey.mu->f0_to_cpu_msg_a));
 376         readl(&(hba->u.mvfrey.mu->f0_to_cpu_msg_a));
 377 }
 378
 379 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec)
 380 {
 381         u32 i;
 382
 383         hba->msg_done = 0;
 384         hba->ops->disable_intr(hba);
 385         hba->ops->post_msg(hba, msg);
 386
 387         for (i = 0; i < millisec; i++) {
 388                 spin_lock_irq(hba->host->host_lock);
 389                 hba->ops->iop_intr(hba);
 390                 spin_unlock_irq(hba->host->host_lock);
 391                 if (hba->msg_done)
 392                         break;
 393                 msleep(1);
 394         }
 395
 396         hba->ops->enable_intr(hba);
 397         return hba->msg_done? 0 : -1;
 398 }
 399
 400 static int iop_get_config_itl(struct hptiop_hba *hba,
 401                                 struct hpt_iop_request_get_config *config)
 402 {
 403         u32 req32;
 404         struct hpt_iop_request_get_config __iomem *req;
 405
 406         req32 = readl(&hba->u.itl.iop->inbound_queue);
 407         if (req32 == IOPMU_QUEUE_EMPTY)
 408                 return -1;
 409
 410         req = (struct hpt_iop_request_get_config __iomem *)
 411                         ((unsigned long)hba->u.itl.iop + req32);
 412
 413         writel(0, &req->header.flags);
 414         writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type);
 415         writel(sizeof(struct hpt_iop_request_get_config), &req->header.size);
 416         writel(IOP_RESULT_PENDING, &req->header.result);
 417
 418         if (iop_send_sync_request_itl(hba, req, 20000)) {
 419                 dprintk("Get config send cmd failed\n");
 420                 return -1;
 421         }
 422
 423         memcpy_fromio(config, req, sizeof(*config));
 424         writel(req32, &hba->u.itl.iop->outbound_queue);
 425         return 0;
 426 }
 427
 428 static int iop_get_config_mv(struct hptiop_hba *hba,
 429                                 struct hpt_iop_request_get_config *config)
 430 {
 431         struct hpt_iop_request_get_config *req = hba->u.mv.internal_req;
 432
 433         req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
 434         req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG);
 435         req->header.size =
 436                 cpu_to_le32(sizeof(struct hpt_iop_request_get_config));
 437         req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
 438         req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG<<5);
 439         req->header.context_hi32 = 0;
 440
 441         if (iop_send_sync_request_mv(hba, 0, 20000)) {
 442                 dprintk("Get config send cmd failed\n");
 443                 return -1;
 444         }
 445
 446         memcpy(config, req, sizeof(struct hpt_iop_request_get_config));
 447         return 0;
 448 }
 449
 450 static int iop_get_config_mvfrey(struct hptiop_hba *hba,
 451                                 struct hpt_iop_request_get_config *config)
 452 {
 453         struct hpt_iop_request_get_config *info = hba->u.mvfrey.config;
 454
 455         if (info->header.size != sizeof(struct hpt_iop_request_get_config) ||
 456                         info->header.type != IOP_REQUEST_TYPE_GET_CONFIG)
 457                 return -1;
 458
 459         config->interface_version = info->interface_version;
 460         config->firmware_version = info->firmware_version;
 461         config->max_requests = info->max_requests;
 462         config->request_size = info->request_size;
 463         config->max_sg_count = info->max_sg_count;
 464         config->data_transfer_length = info->data_transfer_length;
 465         config->alignment_mask = info->alignment_mask;
 466         config->max_devices = info->max_devices;
 467         config->sdram_size = info->sdram_size;
 468
 469         return 0;
 470 }
 471
 472 static int iop_set_config_itl(struct hptiop_hba *hba,
 473                                 struct hpt_iop_request_set_config *config)
 474 {
 475         u32 req32;
 476         struct hpt_iop_request_set_config __iomem *req;
 477
 478         req32 = readl(&hba->u.itl.iop->inbound_queue);
 479         if (req32 == IOPMU_QUEUE_EMPTY)
 480                 return -1;
 481
 482         req = (struct hpt_iop_request_set_config __iomem *)
 483                         ((unsigned long)hba->u.itl.iop + req32);
 484
 485         memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header),
 486                 (u8 *)config + sizeof(struct hpt_iop_request_header),
 487                 sizeof(struct hpt_iop_request_set_config) -
 488                         sizeof(struct hpt_iop_request_header));
 489
 490         writel(0, &req->header.flags);
 491         writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type);
 492         writel(sizeof(struct hpt_iop_request_set_config), &req->header.size);
 493         writel(IOP_RESULT_PENDING, &req->header.result);
 494
 495         if (iop_send_sync_request_itl(hba, req, 20000)) {
 496                 dprintk("Set config send cmd failed\n");
 497                 return -1;
 498         }
 499
 500         writel(req32, &hba->u.itl.iop->outbound_queue);
 501         return 0;
 502 }
 503
 504 static int iop_set_config_mv(struct hptiop_hba *hba,
 505                                 struct hpt_iop_request_set_config *config)
 506 {
 507         struct hpt_iop_request_set_config *req = hba->u.mv.internal_req;
 508
 509         memcpy(req, config, sizeof(struct hpt_iop_request_set_config));
 510         req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
 511         req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG);
 512         req->header.size =
 513                 cpu_to_le32(sizeof(struct hpt_iop_request_set_config));
 514         req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
 515         req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5);
 516         req->header.context_hi32 = 0;
 517
 518         if (iop_send_sync_request_mv(hba, 0, 20000)) {
 519                 dprintk("Set config send cmd failed\n");
 520                 return -1;
 521         }
 522
 523         return 0;
 524 }
 525
 526 static int iop_set_config_mvfrey(struct hptiop_hba *hba,
 527                                 struct hpt_iop_request_set_config *config)
 528 {
 529         struct hpt_iop_request_set_config *req =
 530                 hba->u.mvfrey.internal_req.req_virt;
 531
 532         memcpy(req, config, sizeof(struct hpt_iop_request_set_config));
 533         req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
 534         req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG);
 535         req->header.size =
 536                 cpu_to_le32(sizeof(struct hpt_iop_request_set_config));
 537         req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
 538         req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5);
 539         req->header.context_hi32 = 0;
 540
 541         if (iop_send_sync_request_mvfrey(hba, 0, 20000)) {
 542                 dprintk("Set config send cmd failed\n");
 543                 return -1;
 544         }
 545
 546         return 0;
 547 }
 548
 549 static void hptiop_enable_intr_itl(struct hptiop_hba *hba)
 550 {
 551         writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0),
 552                 &hba->u.itl.iop->outbound_intmask);
 553 }
 554
 555 static void hptiop_enable_intr_mv(struct hptiop_hba *hba)
 556 {
 557         writel(MVIOP_MU_OUTBOUND_INT_POSTQUEUE | MVIOP_MU_OUTBOUND_INT_MSG,
 558                 &hba->u.mv.regs->outbound_intmask);
 559 }
 560
 561 static void hptiop_enable_intr_mvfrey(struct hptiop_hba *hba)
 562 {
 563         writel(CPU_TO_F0_DRBL_MSG_BIT, &(hba->u.mvfrey.mu->f0_doorbell_enable));
 564         writel(0x1, &(hba->u.mvfrey.mu->isr_enable));
 565         writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
 566 }
 567
 568 static int hptiop_initialize_iop(struct hptiop_hba *hba)
 569 {
 570         /* enable interrupts */
 571         hba->ops->enable_intr(hba);
 572
 573         hba->initialized = 1;
 574
 575         /* start background tasks */
 576         if (iop_send_sync_msg(hba,
 577                         IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
 578                 printk(KERN_ERR "scsi%d: fail to start background task\n",
 579                         hba->host->host_no);
 580                 return -1;
 581         }
 582         return 0;
 583 }
 584
 585 static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index)
 586 {
 587         u32 mem_base_phy, length;
 588         void __iomem *mem_base_virt;
 589
 590         struct pci_dev *pcidev = hba->pcidev;
 591
 592
 593         if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) {
 594                 printk(KERN_ERR "scsi%d: pci resource invalid\n",
 595                                 hba->host->host_no);
 596                 return NULL;
 597         }
 598
 599         mem_base_phy = pci_resource_start(pcidev, index);
 600         length = pci_resource_len(pcidev, index);
 601         mem_base_virt = ioremap(mem_base_phy, length);
 602
 603         if (!mem_base_virt) {
 604                 printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n",
 605                                 hba->host->host_no);
 606                 return NULL;
 607         }
 608         return mem_base_virt;
 609 }
 610
 611 static int hptiop_map_pci_bar_itl(struct hptiop_hba *hba)
 612 {
 613         struct pci_dev *pcidev = hba->pcidev;
 614         hba->u.itl.iop = hptiop_map_pci_bar(hba, 0);
 615         if (hba->u.itl.iop == NULL)
 616                 return -1;
 617         if ((pcidev->device & 0xff00) == 0x4400) {
 618                 hba->u.itl.plx = hba->u.itl.iop;
 619                 hba->u.itl.iop = hptiop_map_pci_bar(hba, 2);
 620                 if (hba->u.itl.iop == NULL) {
 621                         iounmap(hba->u.itl.plx);
 622                         return -1;
 623                 }
 624         }
 625         return 0;
 626 }
 627
 628 static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba)
 629 {
 630         if (hba->u.itl.plx)
 631                 iounmap(hba->u.itl.plx);
 632         iounmap(hba->u.itl.iop);
 633 }
 634
 635 static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba)
 636 {
 637         hba->u.mv.regs = hptiop_map_pci_bar(hba, 0);
 638         if (hba->u.mv.regs == NULL)
 639                 return -1;
 640
 641         hba->u.mv.mu = hptiop_map_pci_bar(hba, 2);
 642         if (hba->u.mv.mu == NULL) {
 643                 iounmap(hba->u.mv.regs);
 644                 return -1;
 645         }
 646
 647         return 0;
 648 }
 649
 650 static int hptiop_map_pci_bar_mvfrey(struct hptiop_hba *hba)
 651 {
 652         hba->u.mvfrey.config = hptiop_map_pci_bar(hba, 0);
 653         if (hba->u.mvfrey.config == NULL)
 654                 return -1;
 655
 656         hba->u.mvfrey.mu = hptiop_map_pci_bar(hba, 2);
 657         if (hba->u.mvfrey.mu == NULL) {
 658                 iounmap(hba->u.mvfrey.config);
 659                 return -1;
 660         }
 661
 662         return 0;
 663 }
 664
 665 static void hptiop_unmap_pci_bar_mv(struct hptiop_hba *hba)
 666 {
 667         iounmap(hba->u.mv.regs);
 668         iounmap(hba->u.mv.mu);
 669 }
 670
 671 static void hptiop_unmap_pci_bar_mvfrey(struct hptiop_hba *hba)
 672 {
 673         iounmap(hba->u.mvfrey.config);
 674         iounmap(hba->u.mvfrey.mu);
 675 }
 676
 677 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg)
 678 {
 679         dprintk("iop message 0x%x\n", msg);
 680
 681         if (msg == IOPMU_INBOUND_MSG0_NOP ||
 682                 msg == IOPMU_INBOUND_MSG0_RESET_COMM)
 683                 hba->msg_done = 1;
 684
 685         if (!hba->initialized)
 686                 return;
 687
 688         if (msg == IOPMU_INBOUND_MSG0_RESET) {
 689                 atomic_set(&hba->resetting, 0);
 690                 wake_up(&hba->reset_wq);
 691         }
 692         else if (msg <= IOPMU_INBOUND_MSG0_MAX)
 693                 hba->msg_done = 1;
 694 }
 695
 696 static struct hptiop_request *get_req(struct hptiop_hba *hba)
 697 {
 698         struct hptiop_request *ret;
 699
 700         dprintk("get_req : req=%p\n", hba->req_list);
 701
 702         ret = hba->req_list;
 703         if (ret)
 704                 hba->req_list = ret->next;
 705
 706         return ret;
 707 }
 708
 709 static void free_req(struct hptiop_hba *hba, struct hptiop_request *req)
 710 {
 711         dprintk("free_req(%d, %p)\n", req->index, req);
 712         req->next = hba->req_list;
 713         hba->req_list = req;
 714 }
 715
 716 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
 717                                 struct hpt_iop_request_scsi_command *req)
 718 {
 719         struct scsi_cmnd *scp;
 720
 721         dprintk("hptiop_finish_scsi_req: req=%p, type=%d, "
 722                         "result=%d, context=0x%x tag=%d\n",
 723                         req, req->header.type, req->header.result,
 724                         req->header.context, tag);
 725
 726         BUG_ON(!req->header.result);
 727         BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND));
 728
 729         scp = hba->reqs[tag].scp;
 730
 731         if (HPT_SCP(scp)->mapped)
 732                 scsi_dma_unmap(scp);
 733
 734         switch (le32_to_cpu(req->header.result)) {
 735         case IOP_RESULT_SUCCESS:
 736                 scsi_set_resid(scp,
 737                         scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
 738                 scp->result = (DID_OK<<16);
 739                 break;
 740         case IOP_RESULT_BAD_TARGET:
 741                 scp->result = (DID_BAD_TARGET<<16);
 742                 break;
 743         case IOP_RESULT_BUSY:
 744                 scp->result = (DID_BUS_BUSY<<16);
 745                 break;
 746         case IOP_RESULT_RESET:
 747                 scp->result = (DID_RESET<<16);
 748                 break;
 749         case IOP_RESULT_FAIL:
 750                 scp->result = (DID_ERROR<<16);
 751                 break;
 752         case IOP_RESULT_INVALID_REQUEST:
 753                 scp->result = (DID_ABORT<<16);
 754                 break;
 755         case IOP_RESULT_CHECK_CONDITION:
 756                 scsi_set_resid(scp,
 757                         scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
 758                 scp->result = SAM_STAT_CHECK_CONDITION;
 759                 memcpy(scp->sense_buffer, &req->sg_list, SCSI_SENSE_BUFFERSIZE);
 760                 goto skip_resid;
 761
 762         default:
 763                 scp->result = DID_ABORT << 16;
 764                 break;
 765         }
 766
 767         scsi_set_resid(scp,
 768                 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
 769
 770 skip_resid:
 771         dprintk("scsi_done(%p)\n", scp);
 772         scsi_done(scp);
 773         free_req(hba, &hba->reqs[tag]);
 774 }
 775
 776 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 _tag)
 777 {
 778         struct hpt_iop_request_scsi_command *req;
 779         u32 tag;
 780
 781         if (hba->iopintf_v2) {
 782                 tag = _tag & ~IOPMU_QUEUE_REQUEST_RESULT_BIT;
 783                 req = hba->reqs[tag].req_virt;
 784                 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT))
 785                         req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
 786         } else {
 787                 tag = _tag;
 788                 req = hba->reqs[tag].req_virt;
 789         }
 790
 791         hptiop_finish_scsi_req(hba, tag, req);
 792 }
 793
 794 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
 795 {
 796         struct hpt_iop_request_header __iomem *req;
 797         struct hpt_iop_request_ioctl_command __iomem *p;
 798         struct hpt_ioctl_k *arg;
 799
 800         req = (struct hpt_iop_request_header __iomem *)
 801                         ((unsigned long)hba->u.itl.iop + tag);
 802         dprintk("hptiop_iop_request_callback_itl: req=%p, type=%d, "
 803                         "result=%d, context=0x%x tag=%d\n",
 804                         req, readl(&req->type), readl(&req->result),
 805                         readl(&req->context), tag);
 806
 807         BUG_ON(!readl(&req->result));
 808         BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND);
 809
 810         p = (struct hpt_iop_request_ioctl_command __iomem *)req;
 811         arg = (struct hpt_ioctl_k *)(unsigned long)
 812                 (readl(&req->context) |
 813                         ((u64)readl(&req->context_hi32)<<32));
 814
 815         if (readl(&req->result) == IOP_RESULT_SUCCESS) {
 816                 arg->result = HPT_IOCTL_RESULT_OK;
 817
 818                 if (arg->outbuf_size)
 819                         memcpy_fromio(arg->outbuf,
 820                                 &p->buf[(readl(&p->inbuf_size) + 3)& ~3],
 821                                 arg->outbuf_size);
 822
 823                 if (arg->bytes_returned)
 824                         *arg->bytes_returned = arg->outbuf_size;
 825         }
 826         else
 827                 arg->result = HPT_IOCTL_RESULT_FAILED;
 828
 829         arg->done(arg);
 830         writel(tag, &hba->u.itl.iop->outbound_queue);
 831 }
 832
 833 static irqreturn_t hptiop_intr(int irq, void *dev_id)
 834 {
 835         struct hptiop_hba  *hba = dev_id;
 836         int  handled;
 837         unsigned long flags;
 838
 839         spin_lock_irqsave(hba->host->host_lock, flags);
 840         handled = hba->ops->iop_intr(hba);
 841         spin_unlock_irqrestore(hba->host->host_lock, flags);
 842
 843         return handled;
 844 }
 845
 846 static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg)
 847 {
 848         struct Scsi_Host *host = scp->device->host;
 849         struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
 850         struct scatterlist *sg;
 851         int idx, nseg;
 852
 853         nseg = scsi_dma_map(scp);
 854         BUG_ON(nseg < 0);
 855         if (!nseg)
 856                 return 0;
 857
 858         HPT_SCP(scp)->sgcnt = nseg;
 859         HPT_SCP(scp)->mapped = 1;
 860
 861         BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors);
 862
 863         scsi_for_each_sg(scp, sg, HPT_SCP(scp)->sgcnt, idx) {
 864                 psg[idx].pci_address = cpu_to_le64(sg_dma_address(sg)) |
 865                         hba->ops->host_phy_flag;
 866                 psg[idx].size = cpu_to_le32(sg_dma_len(sg));
 867                 psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ?
 868                         cpu_to_le32(1) : 0;
 869         }
 870         return HPT_SCP(scp)->sgcnt;
 871 }
 872
 873 static void hptiop_post_req_itl(struct hptiop_hba *hba,
 874                                         struct hptiop_request *_req)
 875 {
 876         struct hpt_iop_request_header *reqhdr = _req->req_virt;
 877
 878         reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
 879                                                         (u32)_req->index);
 880         reqhdr->context_hi32 = 0;
 881
 882         if (hba->iopintf_v2) {
 883                 u32 size, size_bits;
 884
 885                 size = le32_to_cpu(reqhdr->size);
 886                 if (size < 256)
 887                         size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT;
 888                 else if (size < 512)
 889                         size_bits = IOPMU_QUEUE_ADDR_HOST_BIT;
 890                 else
 891                         size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT |
 892                                                 IOPMU_QUEUE_ADDR_HOST_BIT;
 893                 writel(_req->req_shifted_phy | size_bits,
 894                         &hba->u.itl.iop->inbound_queue);
 895         } else
 896                 writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT,
 897                                         &hba->u.itl.iop->inbound_queue);
 898 }
 899
 900 static void hptiop_post_req_mv(struct hptiop_hba *hba,
 901                                         struct hptiop_request *_req)
 902 {
 903         struct hpt_iop_request_header *reqhdr = _req->req_virt;
 904         u32 size, size_bit;
 905
 906         reqhdr->context = cpu_to_le32(_req->index<<8 |
 907                                         IOP_REQUEST_TYPE_SCSI_COMMAND<<5);
 908         reqhdr->context_hi32 = 0;
 909         size = le32_to_cpu(reqhdr->size);
 910
 911         if (size <= 256)
 912                 size_bit = 0;
 913         else if (size <= 256*2)
 914                 size_bit = 1;
 915         else if (size <= 256*3)
 916                 size_bit = 2;
 917         else
 918                 size_bit = 3;
 919
 920         mv_inbound_write((_req->req_shifted_phy << 5) |
 921                 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bit, hba);
 922 }
 923
 924 static void hptiop_post_req_mvfrey(struct hptiop_hba *hba,
 925                                         struct hptiop_request *_req)
 926 {
 927         struct hpt_iop_request_header *reqhdr = _req->req_virt;
 928         u32 index;
 929
 930         reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT |
 931                         IOP_REQUEST_FLAG_ADDR_BITS |
 932                         ((_req->req_shifted_phy >> 11) & 0xffff0000));
 933         reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
 934                         (_req->index << 4) | reqhdr->type);
 935         reqhdr->context_hi32 = cpu_to_le32((_req->req_shifted_phy << 5) &
 936                         0xffffffff);
 937
 938         hba->u.mvfrey.inlist_wptr++;
 939         index = hba->u.mvfrey.inlist_wptr & 0x3fff;
 940
 941         if (index == hba->u.mvfrey.list_count) {
 942                 index = 0;
 943                 hba->u.mvfrey.inlist_wptr &= ~0x3fff;
 944                 hba->u.mvfrey.inlist_wptr ^= CL_POINTER_TOGGLE;
 945         }
 946
 947         hba->u.mvfrey.inlist[index].addr =
 948                         (dma_addr_t)_req->req_shifted_phy << 5;
 949         hba->u.mvfrey.inlist[index].intrfc_len = (reqhdr->size + 3) / 4;
 950         writel(hba->u.mvfrey.inlist_wptr,
 951                 &(hba->u.mvfrey.mu->inbound_write_ptr));
 952         readl(&(hba->u.mvfrey.mu->inbound_write_ptr));
 953 }
 954
 955 static int hptiop_reset_comm_itl(struct hptiop_hba *hba)
 956 {
 957         return 0;
 958 }
 959
 960 static int hptiop_reset_comm_mv(struct hptiop_hba *hba)
 961 {
 962         return 0;
 963 }
 964
 965 static int hptiop_reset_comm_mvfrey(struct hptiop_hba *hba)
 966 {
 967         u32 list_count = hba->u.mvfrey.list_count;
 968
 969         if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_RESET_COMM, 3000))
 970                 return -1;
 971
 972         /* wait 100ms for MCU ready */
 973         msleep(100);
 974
 975         writel(cpu_to_le32(hba->u.mvfrey.inlist_phy & 0xffffffff),
 976                         &(hba->u.mvfrey.mu->inbound_base));
 977         writel(cpu_to_le32((hba->u.mvfrey.inlist_phy >> 16) >> 16),
 978                         &(hba->u.mvfrey.mu->inbound_base_high));
 979
 980         writel(cpu_to_le32(hba->u.mvfrey.outlist_phy & 0xffffffff),
 981                         &(hba->u.mvfrey.mu->outbound_base));
 982         writel(cpu_to_le32((hba->u.mvfrey.outlist_phy >> 16) >> 16),
 983                         &(hba->u.mvfrey.mu->outbound_base_high));
 984
 985         writel(cpu_to_le32(hba->u.mvfrey.outlist_cptr_phy & 0xffffffff),
 986                         &(hba->u.mvfrey.mu->outbound_shadow_base));
 987         writel(cpu_to_le32((hba->u.mvfrey.outlist_cptr_phy >> 16) >> 16),
 988                         &(hba->u.mvfrey.mu->outbound_shadow_base_high));
 989
 990         hba->u.mvfrey.inlist_wptr = (list_count - 1) | CL_POINTER_TOGGLE;
 991         *hba->u.mvfrey.outlist_cptr = (list_count - 1) | CL_POINTER_TOGGLE;
 992         hba->u.mvfrey.outlist_rptr = list_count - 1;
 993         return 0;
 994 }
 995
 996 static int hptiop_queuecommand_lck(struct scsi_cmnd *scp)
 997 {
 998         struct Scsi_Host *host = scp->device->host;
 999         struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1000         struct hpt_iop_request_scsi_command *req;
1001         int sg_count = 0;
1002         struct hptiop_request *_req;
1003
1004         _req = get_req(hba);
1005         if (_req == NULL) {
1006                 dprintk("hptiop_queuecmd : no free req\n");
1007                 return SCSI_MLQUEUE_HOST_BUSY;
1008         }
1009
1010         _req->scp = scp;
1011
1012         dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%llu cdb=(%08x-%08x-%08x-%08x) "
1013                         "req_index=%d, req=%p\n",
1014                         scp,
1015                         host->host_no, scp->device->channel,
1016                         scp->device->id, scp->device->lun,
1017                         cpu_to_be32(((u32 *)scp->cmnd)[0]),
1018                         cpu_to_be32(((u32 *)scp->cmnd)[1]),
1019                         cpu_to_be32(((u32 *)scp->cmnd)[2]),
1020                         cpu_to_be32(((u32 *)scp->cmnd)[3]),
1021                         _req->index, _req->req_virt);
1022
1023         scp->result = 0;
1024
1025         if (scp->device->channel ||
1026                         (scp->device->id > hba->max_devices) ||
1027                         ((scp->device->id == (hba->max_devices-1)) && scp->device->lun)) {
1028                 scp->result = DID_BAD_TARGET << 16;
1029                 free_req(hba, _req);
1030                 goto cmd_done;
1031         }
1032
1033         req = _req->req_virt;
1034
1035         /* build S/G table */
1036         sg_count = hptiop_buildsgl(scp, req->sg_list);
1037         if (!sg_count)
1038                 HPT_SCP(scp)->mapped = 0;
1039
1040         req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
1041         req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND);
1042         req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
1043         req->dataxfer_length = cpu_to_le32(scsi_bufflen(scp));
1044         req->channel = scp->device->channel;
1045         req->target = scp->device->id;
1046         req->lun = scp->device->lun;
1047         req->header.size = cpu_to_le32(struct_size(req, sg_list, sg_count));
1048
1049         memcpy(req->cdb, scp->cmnd, sizeof(req->cdb));
1050         hba->ops->post_req(hba, _req);
1051         return 0;
1052
1053 cmd_done:
1054         dprintk("scsi_done(scp=%p)\n", scp);
1055         scsi_done(scp);
1056         return 0;
1057 }
1058
1059 static DEF_SCSI_QCMD(hptiop_queuecommand)
1060
1061 static const char *hptiop_info(struct Scsi_Host *host)
1062 {
1063         return driver_name_long;
1064 }
1065
1066 static int hptiop_reset_hba(struct hptiop_hba *hba)
1067 {
1068         if (atomic_xchg(&hba->resetting, 1) == 0) {
1069                 atomic_inc(&hba->reset_count);
1070                 hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET);
1071         }
1072
1073         wait_event_timeout(hba->reset_wq,
1074                         atomic_read(&hba->resetting) == 0, 60 * HZ);
1075
1076         if (atomic_read(&hba->resetting)) {
1077                 /* IOP is in unknown state, abort reset */
1078                 printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no);
1079                 return -1;
1080         }
1081
1082         if (iop_send_sync_msg(hba,
1083                 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
1084                 dprintk("scsi%d: fail to start background task\n",
1085                                 hba->host->host_no);
1086         }
1087
1088         return 0;
1089 }
1090
1091 static int hptiop_reset(struct scsi_cmnd *scp)
1092 {
1093         struct hptiop_hba * hba = (struct hptiop_hba *)scp->device->host->hostdata;
1094
1095         printk(KERN_WARNING "hptiop_reset(%d/%d/%d)\n",
1096                scp->device->host->host_no, -1, -1);
1097
1098         return hptiop_reset_hba(hba)? FAILED : SUCCESS;
1099 }
1100
1101 static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
1102                                           int queue_depth)
1103 {
1104         struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata;
1105
1106         if (queue_depth > hba->max_requests)
1107                 queue_depth = hba->max_requests;
1108         return scsi_change_queue_depth(sdev, queue_depth);
1109 }
1110
1111 static ssize_t hptiop_show_version(struct device *dev,
1112                                    struct device_attribute *attr, char *buf)
1113 {
1114         return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
1115 }
1116
1117 static ssize_t hptiop_show_fw_version(struct device *dev,
1118                                       struct device_attribute *attr, char *buf)
1119 {
1120         struct Scsi_Host *host = class_to_shost(dev);
1121         struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1122
1123         return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n",
1124                                 hba->firmware_version >> 24,
1125                                 (hba->firmware_version >> 16) & 0xff,
1126                                 (hba->firmware_version >> 8) & 0xff,
1127                                 hba->firmware_version & 0xff);
1128 }
1129
1130 static struct device_attribute hptiop_attr_version = {
1131         .attr = {
1132                 .name = "driver-version",
1133                 .mode = S_IRUGO,
1134         },
1135         .show = hptiop_show_version,
1136 };
1137
1138 static struct device_attribute hptiop_attr_fw_version = {
1139         .attr = {
1140                 .name = "firmware-version",
1141                 .mode = S_IRUGO,
1142         },
1143         .show = hptiop_show_fw_version,
1144 };
1145
1146 static struct attribute *hptiop_host_attrs[] = {
1147         &hptiop_attr_version.attr,
1148         &hptiop_attr_fw_version.attr,
1149         NULL
1150 };
1151
1152 ATTRIBUTE_GROUPS(hptiop_host);
1153
1154 static int hptiop_slave_config(struct scsi_device *sdev)
1155 {
1156         if (sdev->type == TYPE_TAPE)
1157                 blk_queue_max_hw_sectors(sdev->request_queue, 8192);
1158
1159         return 0;
1160 }
1161
1162 static const struct scsi_host_template driver_template = {
1163         .module                     = THIS_MODULE,
1164         .name                       = driver_name,
1165         .queuecommand               = hptiop_queuecommand,
1166         .eh_host_reset_handler      = hptiop_reset,
1167         .info                       = hptiop_info,
1168         .emulated                   = 0,
1169         .proc_name                  = driver_name,
1170         .shost_groups               = hptiop_host_groups,
1171         .slave_configure            = hptiop_slave_config,
1172         .this_id                    = -1,
1173         .change_queue_depth         = hptiop_adjust_disk_queue_depth,
1174         .cmd_size                   = sizeof(struct hpt_cmd_priv),
1175 };
1176
1177 static int hptiop_internal_memalloc_itl(struct hptiop_hba *hba)
1178 {
1179         return 0;
1180 }
1181
1182 static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba)
1183 {
1184         hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev,
1185                         0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL);
1186         if (hba->u.mv.internal_req)
1187                 return 0;
1188         else
1189                 return -1;
1190 }
1191
1192 static int hptiop_internal_memalloc_mvfrey(struct hptiop_hba *hba)
1193 {
1194         u32 list_count = readl(&hba->u.mvfrey.mu->inbound_conf_ctl);
1195         char *p;
1196         dma_addr_t phy;
1197
1198         BUG_ON(hba->max_request_size == 0);
1199
1200         if (list_count == 0) {
1201                 BUG_ON(1);
1202                 return -1;
1203         }
1204
1205         list_count >>= 16;
1206
1207         hba->u.mvfrey.list_count = list_count;
1208         hba->u.mvfrey.internal_mem_size = 0x800 +
1209                         list_count * sizeof(struct mvfrey_inlist_entry) +
1210                         list_count * sizeof(struct mvfrey_outlist_entry) +
1211                         sizeof(int);
1212
1213         p = dma_alloc_coherent(&hba->pcidev->dev,
1214                         hba->u.mvfrey.internal_mem_size, &phy, GFP_KERNEL);
1215         if (!p)
1216                 return -1;
1217
1218         hba->u.mvfrey.internal_req.req_virt = p;
1219         hba->u.mvfrey.internal_req.req_shifted_phy = phy >> 5;
1220         hba->u.mvfrey.internal_req.scp = NULL;
1221         hba->u.mvfrey.internal_req.next = NULL;
1222
1223         p += 0x800;
1224         phy += 0x800;
1225
1226         hba->u.mvfrey.inlist = (struct mvfrey_inlist_entry *)p;
1227         hba->u.mvfrey.inlist_phy = phy;
1228
1229         p += list_count * sizeof(struct mvfrey_inlist_entry);
1230         phy += list_count * sizeof(struct mvfrey_inlist_entry);
1231
1232         hba->u.mvfrey.outlist = (struct mvfrey_outlist_entry *)p;
1233         hba->u.mvfrey.outlist_phy = phy;
1234
1235         p += list_count * sizeof(struct mvfrey_outlist_entry);
1236         phy += list_count * sizeof(struct mvfrey_outlist_entry);
1237
1238         hba->u.mvfrey.outlist_cptr = (__le32 *)p;
1239         hba->u.mvfrey.outlist_cptr_phy = phy;
1240
1241         return 0;
1242 }
1243
1244 static int hptiop_internal_memfree_itl(struct hptiop_hba *hba)
1245 {
1246         return 0;
1247 }
1248
1249 static int hptiop_internal_memfree_mv(struct hptiop_hba *hba)
1250 {
1251         if (hba->u.mv.internal_req) {
1252                 dma_free_coherent(&hba->pcidev->dev, 0x800,
1253                         hba->u.mv.internal_req, hba->u.mv.internal_req_phy);
1254                 return 0;
1255         } else
1256                 return -1;
1257 }
1258
1259 static int hptiop_internal_memfree_mvfrey(struct hptiop_hba *hba)
1260 {
1261         if (hba->u.mvfrey.internal_req.req_virt) {
1262                 dma_free_coherent(&hba->pcidev->dev,
1263                         hba->u.mvfrey.internal_mem_size,
1264                         hba->u.mvfrey.internal_req.req_virt,
1265                         (dma_addr_t)
1266                         hba->u.mvfrey.internal_req.req_shifted_phy << 5);
1267                 return 0;
1268         } else
1269                 return -1;
1270 }
1271
1272 static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id)
1273 {
1274         struct Scsi_Host *host = NULL;
1275         struct hptiop_hba *hba;
1276         struct hptiop_adapter_ops *iop_ops;
1277         struct hpt_iop_request_get_config iop_config;
1278         struct hpt_iop_request_set_config set_config;
1279         dma_addr_t start_phy;
1280         void *start_virt;
1281         u32 offset, i, req_size;
1282         int rc;
1283
1284         dprintk("hptiop_probe(%p)\n", pcidev);
1285
1286         if (pci_enable_device(pcidev)) {
1287                 printk(KERN_ERR "hptiop: fail to enable pci device\n");
1288                 return -ENODEV;
1289         }
1290
1291         printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n",
1292                 pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7,
1293                 pcidev->irq);
1294
1295         pci_set_master(pcidev);
1296
1297         /* Enable 64bit DMA if possible */
1298         iop_ops = (struct hptiop_adapter_ops *)id->driver_data;
1299         rc = dma_set_mask(&pcidev->dev,
1300                           DMA_BIT_MASK(iop_ops->hw_dma_bit_mask));
1301         if (rc)
1302                 rc = dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32));
1303
1304         if (rc) {
1305                 printk(KERN_ERR "hptiop: fail to set dma_mask\n");
1306                 goto disable_pci_device;
1307         }
1308
1309         if (pci_request_regions(pcidev, driver_name)) {
1310                 printk(KERN_ERR "hptiop: pci_request_regions failed\n");
1311                 goto disable_pci_device;
1312         }
1313
1314         host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba));
1315         if (!host) {
1316                 printk(KERN_ERR "hptiop: fail to alloc scsi host\n");
1317                 goto free_pci_regions;
1318         }
1319
1320         hba = (struct hptiop_hba *)host->hostdata;
1321         memset(hba, 0, sizeof(struct hptiop_hba));
1322
1323         hba->ops = iop_ops;
1324         hba->pcidev = pcidev;
1325         hba->host = host;
1326         hba->initialized = 0;
1327         hba->iopintf_v2 = 0;
1328
1329         atomic_set(&hba->resetting, 0);
1330         atomic_set(&hba->reset_count, 0);
1331
1332         init_waitqueue_head(&hba->reset_wq);
1333         init_waitqueue_head(&hba->ioctl_wq);
1334
1335         host->max_lun = 128;
1336         host->max_channel = 0;
1337         host->io_port = 0;
1338         host->n_io_port = 0;
1339         host->irq = pcidev->irq;
1340
1341         if (hba->ops->map_pci_bar(hba))
1342                 goto free_scsi_host;
1343
1344         if (hba->ops->iop_wait_ready(hba, 20000)) {
1345                 printk(KERN_ERR "scsi%d: firmware not ready\n",
1346                                 hba->host->host_no);
1347                 goto unmap_pci_bar;
1348         }
1349
1350         if (hba->ops->family == MV_BASED_IOP) {
1351                 if (hba->ops->internal_memalloc(hba)) {
1352                         printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1353                                 hba->host->host_no);
1354                         goto unmap_pci_bar;
1355                 }
1356         }
1357
1358         if (hba->ops->get_config(hba, &iop_config)) {
1359                 printk(KERN_ERR "scsi%d: get config failed\n",
1360                                 hba->host->host_no);
1361                 goto unmap_pci_bar;
1362         }
1363
1364         hba->max_requests = min(le32_to_cpu(iop_config.max_requests),
1365                                 HPTIOP_MAX_REQUESTS);
1366         hba->max_devices = le32_to_cpu(iop_config.max_devices);
1367         hba->max_request_size = le32_to_cpu(iop_config.request_size);
1368         hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count);
1369         hba->firmware_version = le32_to_cpu(iop_config.firmware_version);
1370         hba->interface_version = le32_to_cpu(iop_config.interface_version);
1371         hba->sdram_size = le32_to_cpu(iop_config.sdram_size);
1372
1373         if (hba->ops->family == MVFREY_BASED_IOP) {
1374                 if (hba->ops->internal_memalloc(hba)) {
1375                         printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1376                                 hba->host->host_no);
1377                         goto unmap_pci_bar;
1378                 }
1379                 if (hba->ops->reset_comm(hba)) {
1380                         printk(KERN_ERR "scsi%d: reset comm failed\n",
1381                                         hba->host->host_no);
1382                         goto unmap_pci_bar;
1383                 }
1384         }
1385
1386         if (hba->firmware_version > 0x01020000 ||
1387                         hba->interface_version > 0x01020000)
1388                 hba->iopintf_v2 = 1;
1389
1390         host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9;
1391         host->max_id = le32_to_cpu(iop_config.max_devices);
1392         host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count);
1393         host->can_queue = le32_to_cpu(iop_config.max_requests);
1394         host->cmd_per_lun = le32_to_cpu(iop_config.max_requests);
1395         host->max_cmd_len = 16;
1396
1397         req_size = struct_size_t(struct hpt_iop_request_scsi_command,
1398                                  sg_list, hba->max_sg_descriptors);
1399         if ((req_size & 0x1f) != 0)
1400                 req_size = (req_size + 0x1f) & ~0x1f;
1401
1402         memset(&set_config, 0, sizeof(struct hpt_iop_request_set_config));
1403         set_config.iop_id = cpu_to_le32(host->host_no);
1404         set_config.vbus_id = cpu_to_le16(host->host_no);
1405         set_config.max_host_request_size = cpu_to_le16(req_size);
1406
1407         if (hba->ops->set_config(hba, &set_config)) {
1408                 printk(KERN_ERR "scsi%d: set config failed\n",
1409                                 hba->host->host_no);
1410                 goto unmap_pci_bar;
1411         }
1412
1413         pci_set_drvdata(pcidev, host);
1414
1415         if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED,
1416                                         driver_name, hba)) {
1417                 printk(KERN_ERR "scsi%d: request irq %d failed\n",
1418                                         hba->host->host_no, pcidev->irq);
1419                 goto unmap_pci_bar;
1420         }
1421
1422         /* Allocate request mem */
1423
1424         dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests);
1425
1426         hba->req_size = req_size;
1427         hba->req_list = NULL;
1428
1429         for (i = 0; i < hba->max_requests; i++) {
1430                 start_virt = dma_alloc_coherent(&pcidev->dev,
1431                                         hba->req_size + 0x20,
1432                                         &start_phy, GFP_KERNEL);
1433
1434                 if (!start_virt) {
1435                         printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
1436                                                 hba->host->host_no);
1437                         goto free_request_mem;
1438                 }
1439
1440                 hba->dma_coherent[i] = start_virt;
1441                 hba->dma_coherent_handle[i] = start_phy;
1442
1443                 if ((start_phy & 0x1f) != 0) {
1444                         offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
1445                         start_phy += offset;
1446                         start_virt += offset;
1447                 }
1448
1449                 hba->reqs[i].next = NULL;
1450                 hba->reqs[i].req_virt = start_virt;
1451                 hba->reqs[i].req_shifted_phy = start_phy >> 5;
1452                 hba->reqs[i].index = i;
1453                 free_req(hba, &hba->reqs[i]);
1454         }
1455
1456         /* Enable Interrupt and start background task */
1457         if (hptiop_initialize_iop(hba))
1458                 goto free_request_mem;
1459
1460         if (scsi_add_host(host, &pcidev->dev)) {
1461                 printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
1462                                         hba->host->host_no);
1463                 goto free_request_mem;
1464         }
1465
1466         scsi_scan_host(host);
1467
1468         dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no);
1469         return 0;
1470
1471 free_request_mem:
1472         for (i = 0; i < hba->max_requests; i++) {
1473                 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
1474                         dma_free_coherent(&hba->pcidev->dev,
1475                                         hba->req_size + 0x20,
1476                                         hba->dma_coherent[i],
1477                                         hba->dma_coherent_handle[i]);
1478                 else
1479                         break;
1480         }
1481
1482         free_irq(hba->pcidev->irq, hba);
1483
1484 unmap_pci_bar:
1485         hba->ops->internal_memfree(hba);
1486
1487         hba->ops->unmap_pci_bar(hba);
1488
1489 free_scsi_host:
1490         scsi_host_put(host);
1491
1492 free_pci_regions:
1493         pci_release_regions(pcidev);
1494
1495 disable_pci_device:
1496         pci_disable_device(pcidev);
1497
1498         dprintk("scsi%d: hptiop_probe fail\n", host ? host->host_no : 0);
1499         return -ENODEV;
1500 }
1501
1502 static void hptiop_shutdown(struct pci_dev *pcidev)
1503 {
1504         struct Scsi_Host *host = pci_get_drvdata(pcidev);
1505         struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1506
1507         dprintk("hptiop_shutdown(%p)\n", hba);
1508
1509         /* stop the iop */
1510         if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000))
1511                 printk(KERN_ERR "scsi%d: shutdown the iop timeout\n",
1512                                         hba->host->host_no);
1513
1514         /* disable all outbound interrupts */
1515         hba->ops->disable_intr(hba);
1516 }
1517
1518 static void hptiop_disable_intr_itl(struct hptiop_hba *hba)
1519 {
1520         u32 int_mask;
1521
1522         int_mask = readl(&hba->u.itl.iop->outbound_intmask);
1523         writel(int_mask |
1524                 IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE,
1525                 &hba->u.itl.iop->outbound_intmask);
1526         readl(&hba->u.itl.iop->outbound_intmask);
1527 }
1528
1529 static void hptiop_disable_intr_mv(struct hptiop_hba *hba)
1530 {
1531         writel(0, &hba->u.mv.regs->outbound_intmask);
1532         readl(&hba->u.mv.regs->outbound_intmask);
1533 }
1534
1535 static void hptiop_disable_intr_mvfrey(struct hptiop_hba *hba)
1536 {
1537         writel(0, &(hba->u.mvfrey.mu->f0_doorbell_enable));
1538         readl(&(hba->u.mvfrey.mu->f0_doorbell_enable));
1539         writel(0, &(hba->u.mvfrey.mu->isr_enable));
1540         readl(&(hba->u.mvfrey.mu->isr_enable));
1541         writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
1542         readl(&(hba->u.mvfrey.mu->pcie_f0_int_enable));
1543 }
1544
1545 static void hptiop_remove(struct pci_dev *pcidev)
1546 {
1547         struct Scsi_Host *host = pci_get_drvdata(pcidev);
1548         struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1549         u32 i;
1550
1551         dprintk("scsi%d: hptiop_remove\n", hba->host->host_no);
1552
1553         scsi_remove_host(host);
1554
1555         hptiop_shutdown(pcidev);
1556
1557         free_irq(hba->pcidev->irq, hba);
1558
1559         for (i = 0; i < hba->max_requests; i++) {
1560                 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
1561                         dma_free_coherent(&hba->pcidev->dev,
1562                                         hba->req_size + 0x20,
1563                                         hba->dma_coherent[i],
1564                                         hba->dma_coherent_handle[i]);
1565                 else
1566                         break;
1567         }
1568
1569         hba->ops->internal_memfree(hba);
1570
1571         hba->ops->unmap_pci_bar(hba);
1572
1573         pci_release_regions(hba->pcidev);
1574         pci_set_drvdata(hba->pcidev, NULL);
1575         pci_disable_device(hba->pcidev);
1576
1577         scsi_host_put(host);
1578 }
1579
1580 static struct hptiop_adapter_ops hptiop_itl_ops = {
1581         .family            = INTEL_BASED_IOP,
1582         .iop_wait_ready    = iop_wait_ready_itl,
1583         .internal_memalloc = hptiop_internal_memalloc_itl,
1584         .internal_memfree  = hptiop_internal_memfree_itl,
1585         .map_pci_bar       = hptiop_map_pci_bar_itl,
1586         .unmap_pci_bar     = hptiop_unmap_pci_bar_itl,
1587         .enable_intr       = hptiop_enable_intr_itl,
1588         .disable_intr      = hptiop_disable_intr_itl,
1589         .get_config        = iop_get_config_itl,
1590         .set_config        = iop_set_config_itl,
1591         .iop_intr          = iop_intr_itl,
1592         .post_msg          = hptiop_post_msg_itl,
1593         .post_req          = hptiop_post_req_itl,
1594         .hw_dma_bit_mask   = 64,
1595         .reset_comm        = hptiop_reset_comm_itl,
1596         .host_phy_flag     = cpu_to_le64(0),
1597 };
1598
1599 static struct hptiop_adapter_ops hptiop_mv_ops = {
1600         .family            = MV_BASED_IOP,
1601         .iop_wait_ready    = iop_wait_ready_mv,
1602         .internal_memalloc = hptiop_internal_memalloc_mv,
1603         .internal_memfree  = hptiop_internal_memfree_mv,
1604         .map_pci_bar       = hptiop_map_pci_bar_mv,
1605         .unmap_pci_bar     = hptiop_unmap_pci_bar_mv,
1606         .enable_intr       = hptiop_enable_intr_mv,
1607         .disable_intr      = hptiop_disable_intr_mv,
1608         .get_config        = iop_get_config_mv,
1609         .set_config        = iop_set_config_mv,
1610         .iop_intr          = iop_intr_mv,
1611         .post_msg          = hptiop_post_msg_mv,
1612         .post_req          = hptiop_post_req_mv,
1613         .hw_dma_bit_mask   = 33,
1614         .reset_comm        = hptiop_reset_comm_mv,
1615         .host_phy_flag     = cpu_to_le64(0),
1616 };
1617
1618 static struct hptiop_adapter_ops hptiop_mvfrey_ops = {
1619         .family            = MVFREY_BASED_IOP,
1620         .iop_wait_ready    = iop_wait_ready_mvfrey,
1621         .internal_memalloc = hptiop_internal_memalloc_mvfrey,
1622         .internal_memfree  = hptiop_internal_memfree_mvfrey,
1623         .map_pci_bar       = hptiop_map_pci_bar_mvfrey,
1624         .unmap_pci_bar     = hptiop_unmap_pci_bar_mvfrey,
1625         .enable_intr       = hptiop_enable_intr_mvfrey,
1626         .disable_intr      = hptiop_disable_intr_mvfrey,
1627         .get_config        = iop_get_config_mvfrey,
1628         .set_config        = iop_set_config_mvfrey,
1629         .iop_intr          = iop_intr_mvfrey,
1630         .post_msg          = hptiop_post_msg_mvfrey,
1631         .post_req          = hptiop_post_req_mvfrey,
1632         .hw_dma_bit_mask   = 64,
1633         .reset_comm        = hptiop_reset_comm_mvfrey,
1634         .host_phy_flag     = cpu_to_le64(1),
1635 };
1636
1637 static struct pci_device_id hptiop_id_table[] = {
1638         { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops },
1639         { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops },
1640         { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops },
1641         { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops },
1642         { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops },
1643         { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops },
1644         { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops },
1645         { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops },
1646         { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops },
1647         { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops },
1648         { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops },
1649         { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops },
1650         { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops },
1651         { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops },
1652         { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops },
1653         { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops },
1654         { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops },
1655         { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops },
1656         { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops },
1657         { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops },
1658         { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops },
1659         { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops },
1660         { PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops },
1661         { PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops },
1662         { PCI_VDEVICE(TTI, 0x3610), (kernel_ulong_t)&hptiop_mvfrey_ops },
1663         { PCI_VDEVICE(TTI, 0x3611), (kernel_ulong_t)&hptiop_mvfrey_ops },
1664         { PCI_VDEVICE(TTI, 0x3620), (kernel_ulong_t)&hptiop_mvfrey_ops },
1665         { PCI_VDEVICE(TTI, 0x3622), (kernel_ulong_t)&hptiop_mvfrey_ops },
1666         { PCI_VDEVICE(TTI, 0x3640), (kernel_ulong_t)&hptiop_mvfrey_ops },
1667         { PCI_VDEVICE(TTI, 0x3660), (kernel_ulong_t)&hptiop_mvfrey_ops },
1668         { PCI_VDEVICE(TTI, 0x3680), (kernel_ulong_t)&hptiop_mvfrey_ops },
1669         { PCI_VDEVICE(TTI, 0x3690), (kernel_ulong_t)&hptiop_mvfrey_ops },
1670         {},
1671 };
1672
1673 MODULE_DEVICE_TABLE(pci, hptiop_id_table);
1674
1675 static struct pci_driver hptiop_pci_driver = {
1676         .name       = driver_name,
1677         .id_table   = hptiop_id_table,
1678         .probe      = hptiop_probe,
1679         .remove     = hptiop_remove,
1680         .shutdown   = hptiop_shutdown,
1681 };
1682
1683 static int __init hptiop_module_init(void)
1684 {
1685         printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver);
1686         return pci_register_driver(&hptiop_pci_driver);
1687 }
1688
1689 static void __exit hptiop_module_exit(void)
1690 {
1691         pci_unregister_driver(&hptiop_pci_driver);
1692 }
1693
1694
1695 module_init(hptiop_module_init);
1696 module_exit(hptiop_module_exit);
1697
1698 MODULE_LICENSE("GPL");
1699