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
  32MODULE_AUTHOR("HighPoint Technologies, Inc.");
  33MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver");
  34
  35static char driver_name[] = "hptiop";
  36static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
  37static const char driver_ver[] = "v1.10.0";
  38
  39static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec);
  40static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
  41				struct hpt_iop_request_scsi_command *req);
  42static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag);
  43static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag);
  44static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
  45
  46static 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
  67static 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
  72static 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
  77static 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
  86static 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
 113static 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
 142static 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
 161static 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
 175static 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
 203static 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
 230static 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
 253static 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
 298static 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
 320static 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
 340static 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
 360static 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
 366static 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
 373static 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
 379static 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
 400static 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
 428static 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
 450static 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
 472static 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
 504static 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
 526static 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
 549static 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
 555static 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
 561static 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
 568static 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
 585static 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
 611static 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
 628static 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
 635static 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
 650static 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
 665static 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
 671static 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
 677static 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
 696static 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
 709static 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
 716static 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
 770skip_resid:
 771	dprintk("scsi_done(%p)\n", scp);
 772	scsi_done(scp);
 773	free_req(hba, &hba->reqs[tag]);
 774}
 775
 776static 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
 794static 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
 833static 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
 846static 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
 873static 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
 900static 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
 924static 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
 955static int hptiop_reset_comm_itl(struct hptiop_hba *hba)
 956{
 957	return 0;
 958}
 959
 960static int hptiop_reset_comm_mv(struct hptiop_hba *hba)
 961{
 962	return 0;
 963}
 964
 965static 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
 996static 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
1053cmd_done:
1054	dprintk("scsi_done(scp=%p)\n", scp);
1055	scsi_done(scp);
1056	return 0;
1057}
1058
1059static DEF_SCSI_QCMD(hptiop_queuecommand)
1060
1061static const char *hptiop_info(struct Scsi_Host *host)
1062{
1063	return driver_name_long;
1064}
1065
1066static 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
1091static 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
1101static 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
1111static 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
1117static 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
1130static struct device_attribute hptiop_attr_version = {
1131	.attr = {
1132		.name = "driver-version",
1133		.mode = S_IRUGO,
1134	},
1135	.show = hptiop_show_version,
1136};
1137
1138static 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
1146static struct attribute *hptiop_host_attrs[] = {
1147	&hptiop_attr_version.attr,
1148	&hptiop_attr_fw_version.attr,
1149	NULL
1150};
1151
1152ATTRIBUTE_GROUPS(hptiop_host);
1153
1154static 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
1162static 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
1177static int hptiop_internal_memalloc_itl(struct hptiop_hba *hba)
1178{
1179	return 0;
1180}
1181
1182static 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
1192static 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
1244static int hptiop_internal_memfree_itl(struct hptiop_hba *hba)
1245{
1246	return 0;
1247}
1248
1249static 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
1259static 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
1272static 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
1471free_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
1484unmap_pci_bar:
1485	hba->ops->internal_memfree(hba);
1486
1487	hba->ops->unmap_pci_bar(hba);
1488
1489free_scsi_host:
1490	scsi_host_put(host);
1491
1492free_pci_regions:
1493	pci_release_regions(pcidev);
1494
1495disable_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
1502static 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
1518static 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
1529static 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
1535static 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
1545static 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
1580static 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
1599static 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
1618static 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
1637static 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
1673MODULE_DEVICE_TABLE(pci, hptiop_id_table);
1674
1675static 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
1683static 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
1689static void __exit hptiop_module_exit(void)
1690{
1691	pci_unregister_driver(&hptiop_pci_driver);
1692}
1693
1694
1695module_init(hptiop_module_init);
1696module_exit(hptiop_module_exit);
1697
1698MODULE_LICENSE("GPL");
1699