1/* 2 * HighPoint RR3xxx/4xxx controller driver for Linux 3 * Copyright (C) 2006-2012 HighPoint Technologies, Inc. All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; version 2 of the License. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * Please report bugs/comments/suggestions to linux@highpoint-tech.com 15 * 16 * For more information, visit http://www.highpoint-tech.com 17 */ 18#include <linux/module.h> 19#include <linux/types.h> 20#include <linux/string.h> 21#include <linux/kernel.h> 22#include <linux/pci.h> 23#include <linux/interrupt.h> 24#include <linux/errno.h> 25#include <linux/delay.h> 26#include <linux/timer.h> 27#include <linux/spinlock.h> 28#include <linux/gfp.h> 29#include <asm/uaccess.h> 30#include <asm/io.h> 31#include <asm/div64.h> 32#include <scsi/scsi_cmnd.h> 33#include <scsi/scsi_device.h> 34#include <scsi/scsi.h> 35#include <scsi/scsi_tcq.h> 36#include <scsi/scsi_host.h> 37 38#include "hptiop.h" 39 40MODULE_AUTHOR("HighPoint Technologies, Inc."); 41MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver"); 42 43static char driver_name[] = "hptiop"; 44static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver"; 45static const char driver_ver[] = "v1.8"; 46 47static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec); 48static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag, 49 struct hpt_iop_request_scsi_command *req); 50static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag); 51static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag); 52static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg); 53 54static int iop_wait_ready_itl(struct hptiop_hba *hba, u32 millisec) 55{ 56 u32 req = 0; 57 int i; 58 59 for (i = 0; i < millisec; i++) { 60 req = readl(&hba->u.itl.iop->inbound_queue); 61 if (req != IOPMU_QUEUE_EMPTY) 62 break; 63 msleep(1); 64 } 65 66 if (req != IOPMU_QUEUE_EMPTY) { 67 writel(req, &hba->u.itl.iop->outbound_queue); 68 readl(&hba->u.itl.iop->outbound_intstatus); 69 return 0; 70 } 71 72 return -1; 73} 74 75static int iop_wait_ready_mv(struct hptiop_hba *hba, u32 millisec) 76{ 77 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec); 78} 79 80static int iop_wait_ready_mvfrey(struct hptiop_hba *hba, u32 millisec) 81{ 82 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec); 83} 84 85static void hptiop_request_callback_itl(struct hptiop_hba *hba, u32 tag) 86{ 87 if (tag & IOPMU_QUEUE_ADDR_HOST_BIT) 88 hptiop_host_request_callback_itl(hba, 89 tag & ~IOPMU_QUEUE_ADDR_HOST_BIT); 90 else 91 hptiop_iop_request_callback_itl(hba, tag); 92} 93 94static void hptiop_drain_outbound_queue_itl(struct hptiop_hba *hba) 95{ 96 u32 req; 97 98 while ((req = readl(&hba->u.itl.iop->outbound_queue)) != 99 IOPMU_QUEUE_EMPTY) { 100 101 if (req & IOPMU_QUEUE_MASK_HOST_BITS) 102 hptiop_request_callback_itl(hba, req); 103 else { 104 struct hpt_iop_request_header __iomem * p; 105 106 p = (struct hpt_iop_request_header __iomem *) 107 ((char __iomem *)hba->u.itl.iop + req); 108 109 if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) { 110 if (readl(&p->context)) 111 hptiop_request_callback_itl(hba, req); 112 else 113 writel(1, &p->context); 114 } 115 else 116 hptiop_request_callback_itl(hba, req); 117 } 118 } 119} 120 121static int iop_intr_itl(struct hptiop_hba *hba) 122{ 123 struct hpt_iopmu_itl __iomem *iop = hba->u.itl.iop; 124 void __iomem *plx = hba->u.itl.plx; 125 u32 status; 126 int ret = 0; 127 128 if (plx && readl(plx + 0x11C5C) & 0xf) 129 writel(1, plx + 0x11C60); 130 131 status = readl(&iop->outbound_intstatus); 132 133 if (status & IOPMU_OUTBOUND_INT_MSG0) { 134 u32 msg = readl(&iop->outbound_msgaddr0); 135 136 dprintk("received outbound msg %x\n", msg); 137 writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus); 138 hptiop_message_callback(hba, msg); 139 ret = 1; 140 } 141 142 if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) { 143 hptiop_drain_outbound_queue_itl(hba); 144 ret = 1; 145 } 146 147 return ret; 148} 149 150static u64 mv_outbound_read(struct hpt_iopmu_mv __iomem *mu) 151{ 152 u32 outbound_tail = readl(&mu->outbound_tail); 153 u32 outbound_head = readl(&mu->outbound_head); 154 155 if (outbound_tail != outbound_head) { 156 u64 p; 157 158 memcpy_fromio(&p, &mu->outbound_q[mu->outbound_tail], 8); 159 outbound_tail++; 160 161 if (outbound_tail == MVIOP_QUEUE_LEN) 162 outbound_tail = 0; 163 writel(outbound_tail, &mu->outbound_tail); 164 return p; 165 } else 166 return 0; 167} 168 169static void mv_inbound_write(u64 p, struct hptiop_hba *hba) 170{ 171 u32 inbound_head = readl(&hba->u.mv.mu->inbound_head); 172 u32 head = inbound_head + 1; 173 174 if (head == MVIOP_QUEUE_LEN) 175 head = 0; 176 177 memcpy_toio(&hba->u.mv.mu->inbound_q[inbound_head], &p, 8); 178 writel(head, &hba->u.mv.mu->inbound_head); 179 writel(MVIOP_MU_INBOUND_INT_POSTQUEUE, 180 &hba->u.mv.regs->inbound_doorbell); 181} 182 183static void hptiop_request_callback_mv(struct hptiop_hba *hba, u64 tag) 184{ 185 u32 req_type = (tag >> 5) & 0x7; 186 struct hpt_iop_request_scsi_command *req; 187 188 dprintk("hptiop_request_callback_mv: tag=%llx\n", tag); 189 190 BUG_ON((tag & MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT) == 0); 191 192 switch (req_type) { 193 case IOP_REQUEST_TYPE_GET_CONFIG: 194 case IOP_REQUEST_TYPE_SET_CONFIG: 195 hba->msg_done = 1; 196 break; 197 198 case IOP_REQUEST_TYPE_SCSI_COMMAND: 199 req = hba->reqs[tag >> 8].req_virt; 200 if (likely(tag & MVIOP_MU_QUEUE_REQUEST_RESULT_BIT)) 201 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS); 202 203 hptiop_finish_scsi_req(hba, tag>>8, req); 204 break; 205 206 default: 207 break; 208 } 209} 210 211static int iop_intr_mv(struct hptiop_hba *hba) 212{ 213 u32 status; 214 int ret = 0; 215 216 status = readl(&hba->u.mv.regs->outbound_doorbell); 217 writel(~status, &hba->u.mv.regs->outbound_doorbell); 218 219 if (status & MVIOP_MU_OUTBOUND_INT_MSG) { 220 u32 msg; 221 msg = readl(&hba->u.mv.mu->outbound_msg); 222 dprintk("received outbound msg %x\n", msg); 223 hptiop_message_callback(hba, msg); 224 ret = 1; 225 } 226 227 if (status & MVIOP_MU_OUTBOUND_INT_POSTQUEUE) { 228 u64 tag; 229 230 while ((tag = mv_outbound_read(hba->u.mv.mu))) 231 hptiop_request_callback_mv(hba, tag); 232 ret = 1; 233 } 234 235 return ret; 236} 237 238static void hptiop_request_callback_mvfrey(struct hptiop_hba *hba, u32 _tag) 239{ 240 u32 req_type = _tag & 0xf; 241 struct hpt_iop_request_scsi_command *req; 242 243 switch (req_type) { 244 case IOP_REQUEST_TYPE_GET_CONFIG: 245 case IOP_REQUEST_TYPE_SET_CONFIG: 246 hba->msg_done = 1; 247 break; 248 249 case IOP_REQUEST_TYPE_SCSI_COMMAND: 250 req = hba->reqs[(_tag >> 4) & 0xff].req_virt; 251 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT)) 252 req->header.result = IOP_RESULT_SUCCESS; 253 hptiop_finish_scsi_req(hba, (_tag >> 4) & 0xff, req); 254 break; 255 256 default: 257 break; 258 } 259} 260 261static int iop_intr_mvfrey(struct hptiop_hba *hba) 262{ 263 u32 _tag, status, cptr, cur_rptr; 264 int ret = 0; 265 266 if (hba->initialized) 267 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 268 269 status = readl(&(hba->u.mvfrey.mu->f0_doorbell)); 270 if (status) { 271 writel(status, &(hba->u.mvfrey.mu->f0_doorbell)); 272 if (status & CPU_TO_F0_DRBL_MSG_BIT) { 273 u32 msg = readl(&(hba->u.mvfrey.mu->cpu_to_f0_msg_a)); 274 dprintk("received outbound msg %x\n", msg); 275 hptiop_message_callback(hba, msg); 276 } 277 ret = 1; 278 } 279 280 status = readl(&(hba->u.mvfrey.mu->isr_cause)); 281 if (status) { 282 writel(status, &(hba->u.mvfrey.mu->isr_cause)); 283 do { 284 cptr = *hba->u.mvfrey.outlist_cptr & 0xff; 285 cur_rptr = hba->u.mvfrey.outlist_rptr; 286 while (cur_rptr != cptr) { 287 cur_rptr++; 288 if (cur_rptr == hba->u.mvfrey.list_count) 289 cur_rptr = 0; 290 291 _tag = hba->u.mvfrey.outlist[cur_rptr].val; 292 BUG_ON(!(_tag & IOPMU_QUEUE_MASK_HOST_BITS)); 293 hptiop_request_callback_mvfrey(hba, _tag); 294 ret = 1; 295 } 296 hba->u.mvfrey.outlist_rptr = cur_rptr; 297 } while (cptr != (*hba->u.mvfrey.outlist_cptr & 0xff)); 298 } 299 300 if (hba->initialized) 301 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 302 303 return ret; 304} 305 306static int iop_send_sync_request_itl(struct hptiop_hba *hba, 307 void __iomem *_req, u32 millisec) 308{ 309 struct hpt_iop_request_header __iomem *req = _req; 310 u32 i; 311 312 writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, &req->flags); 313 writel(0, &req->context); 314 writel((unsigned long)req - (unsigned long)hba->u.itl.iop, 315 &hba->u.itl.iop->inbound_queue); 316 readl(&hba->u.itl.iop->outbound_intstatus); 317 318 for (i = 0; i < millisec; i++) { 319 iop_intr_itl(hba); 320 if (readl(&req->context)) 321 return 0; 322 msleep(1); 323 } 324 325 return -1; 326} 327 328static int iop_send_sync_request_mv(struct hptiop_hba *hba, 329 u32 size_bits, u32 millisec) 330{ 331 struct hpt_iop_request_header *reqhdr = hba->u.mv.internal_req; 332 u32 i; 333 334 hba->msg_done = 0; 335 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST); 336 mv_inbound_write(hba->u.mv.internal_req_phy | 337 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bits, hba); 338 339 for (i = 0; i < millisec; i++) { 340 iop_intr_mv(hba); 341 if (hba->msg_done) 342 return 0; 343 msleep(1); 344 } 345 return -1; 346} 347 348static int iop_send_sync_request_mvfrey(struct hptiop_hba *hba, 349 u32 size_bits, u32 millisec) 350{ 351 struct hpt_iop_request_header *reqhdr = 352 hba->u.mvfrey.internal_req.req_virt; 353 u32 i; 354 355 hba->msg_done = 0; 356 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST); 357 hba->ops->post_req(hba, &(hba->u.mvfrey.internal_req)); 358 359 for (i = 0; i < millisec; i++) { 360 iop_intr_mvfrey(hba); 361 if (hba->msg_done) 362 break; 363 msleep(1); 364 } 365 return hba->msg_done ? 0 : -1; 366} 367 368static void hptiop_post_msg_itl(struct hptiop_hba *hba, u32 msg) 369{ 370 writel(msg, &hba->u.itl.iop->inbound_msgaddr0); 371 readl(&hba->u.itl.iop->outbound_intstatus); 372} 373 374static void hptiop_post_msg_mv(struct hptiop_hba *hba, u32 msg) 375{ 376 writel(msg, &hba->u.mv.mu->inbound_msg); 377 writel(MVIOP_MU_INBOUND_INT_MSG, &hba->u.mv.regs->inbound_doorbell); 378 readl(&hba->u.mv.regs->inbound_doorbell); 379} 380 381static void hptiop_post_msg_mvfrey(struct hptiop_hba *hba, u32 msg) 382{ 383 writel(msg, &(hba->u.mvfrey.mu->f0_to_cpu_msg_a)); 384 readl(&(hba->u.mvfrey.mu->f0_to_cpu_msg_a)); 385} 386 387static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec) 388{ 389 u32 i; 390 391 hba->msg_done = 0; 392 hba->ops->disable_intr(hba); 393 hba->ops->post_msg(hba, msg); 394 395 for (i = 0; i < millisec; i++) { 396 spin_lock_irq(hba->host->host_lock); 397 hba->ops->iop_intr(hba); 398 spin_unlock_irq(hba->host->host_lock); 399 if (hba->msg_done) 400 break; 401 msleep(1); 402 } 403 404 hba->ops->enable_intr(hba); 405 return hba->msg_done? 0 : -1; 406} 407 408static int iop_get_config_itl(struct hptiop_hba *hba, 409 struct hpt_iop_request_get_config *config) 410{ 411 u32 req32; 412 struct hpt_iop_request_get_config __iomem *req; 413 414 req32 = readl(&hba->u.itl.iop->inbound_queue); 415 if (req32 == IOPMU_QUEUE_EMPTY) 416 return -1; 417 418 req = (struct hpt_iop_request_get_config __iomem *) 419 ((unsigned long)hba->u.itl.iop + req32); 420 421 writel(0, &req->header.flags); 422 writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type); 423 writel(sizeof(struct hpt_iop_request_get_config), &req->header.size); 424 writel(IOP_RESULT_PENDING, &req->header.result); 425 426 if (iop_send_sync_request_itl(hba, req, 20000)) { 427 dprintk("Get config send cmd failed\n"); 428 return -1; 429 } 430 431 memcpy_fromio(config, req, sizeof(*config)); 432 writel(req32, &hba->u.itl.iop->outbound_queue); 433 return 0; 434} 435 436static int iop_get_config_mv(struct hptiop_hba *hba, 437 struct hpt_iop_request_get_config *config) 438{ 439 struct hpt_iop_request_get_config *req = hba->u.mv.internal_req; 440 441 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 442 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG); 443 req->header.size = 444 cpu_to_le32(sizeof(struct hpt_iop_request_get_config)); 445 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 446 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG<<5); 447 req->header.context_hi32 = 0; 448 449 if (iop_send_sync_request_mv(hba, 0, 20000)) { 450 dprintk("Get config send cmd failed\n"); 451 return -1; 452 } 453 454 memcpy(config, req, sizeof(struct hpt_iop_request_get_config)); 455 return 0; 456} 457 458static int iop_get_config_mvfrey(struct hptiop_hba *hba, 459 struct hpt_iop_request_get_config *config) 460{ 461 struct hpt_iop_request_get_config *info = hba->u.mvfrey.config; 462 463 if (info->header.size != sizeof(struct hpt_iop_request_get_config) || 464 info->header.type != IOP_REQUEST_TYPE_GET_CONFIG) 465 return -1; 466 467 config->interface_version = info->interface_version; 468 config->firmware_version = info->firmware_version; 469 config->max_requests = info->max_requests; 470 config->request_size = info->request_size; 471 config->max_sg_count = info->max_sg_count; 472 config->data_transfer_length = info->data_transfer_length; 473 config->alignment_mask = info->alignment_mask; 474 config->max_devices = info->max_devices; 475 config->sdram_size = info->sdram_size; 476 477 return 0; 478} 479 480static int iop_set_config_itl(struct hptiop_hba *hba, 481 struct hpt_iop_request_set_config *config) 482{ 483 u32 req32; 484 struct hpt_iop_request_set_config __iomem *req; 485 486 req32 = readl(&hba->u.itl.iop->inbound_queue); 487 if (req32 == IOPMU_QUEUE_EMPTY) 488 return -1; 489 490 req = (struct hpt_iop_request_set_config __iomem *) 491 ((unsigned long)hba->u.itl.iop + req32); 492 493 memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header), 494 (u8 *)config + sizeof(struct hpt_iop_request_header), 495 sizeof(struct hpt_iop_request_set_config) - 496 sizeof(struct hpt_iop_request_header)); 497 498 writel(0, &req->header.flags); 499 writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type); 500 writel(sizeof(struct hpt_iop_request_set_config), &req->header.size); 501 writel(IOP_RESULT_PENDING, &req->header.result); 502 503 if (iop_send_sync_request_itl(hba, req, 20000)) { 504 dprintk("Set config send cmd failed\n"); 505 return -1; 506 } 507 508 writel(req32, &hba->u.itl.iop->outbound_queue); 509 return 0; 510} 511 512static int iop_set_config_mv(struct hptiop_hba *hba, 513 struct hpt_iop_request_set_config *config) 514{ 515 struct hpt_iop_request_set_config *req = hba->u.mv.internal_req; 516 517 memcpy(req, config, sizeof(struct hpt_iop_request_set_config)); 518 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 519 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG); 520 req->header.size = 521 cpu_to_le32(sizeof(struct hpt_iop_request_set_config)); 522 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 523 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5); 524 req->header.context_hi32 = 0; 525 526 if (iop_send_sync_request_mv(hba, 0, 20000)) { 527 dprintk("Set config send cmd failed\n"); 528 return -1; 529 } 530 531 return 0; 532} 533 534static int iop_set_config_mvfrey(struct hptiop_hba *hba, 535 struct hpt_iop_request_set_config *config) 536{ 537 struct hpt_iop_request_set_config *req = 538 hba->u.mvfrey.internal_req.req_virt; 539 540 memcpy(req, config, sizeof(struct hpt_iop_request_set_config)); 541 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 542 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG); 543 req->header.size = 544 cpu_to_le32(sizeof(struct hpt_iop_request_set_config)); 545 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 546 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5); 547 req->header.context_hi32 = 0; 548 549 if (iop_send_sync_request_mvfrey(hba, 0, 20000)) { 550 dprintk("Set config send cmd failed\n"); 551 return -1; 552 } 553 554 return 0; 555} 556 557static void hptiop_enable_intr_itl(struct hptiop_hba *hba) 558{ 559 writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0), 560 &hba->u.itl.iop->outbound_intmask); 561} 562 563static void hptiop_enable_intr_mv(struct hptiop_hba *hba) 564{ 565 writel(MVIOP_MU_OUTBOUND_INT_POSTQUEUE | MVIOP_MU_OUTBOUND_INT_MSG, 566 &hba->u.mv.regs->outbound_intmask); 567} 568 569static void hptiop_enable_intr_mvfrey(struct hptiop_hba *hba) 570{ 571 writel(CPU_TO_F0_DRBL_MSG_BIT, &(hba->u.mvfrey.mu->f0_doorbell_enable)); 572 writel(0x1, &(hba->u.mvfrey.mu->isr_enable)); 573 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 574} 575 576static int hptiop_initialize_iop(struct hptiop_hba *hba) 577{ 578 /* enable interrupts */ 579 hba->ops->enable_intr(hba); 580 581 hba->initialized = 1; 582 583 /* start background tasks */ 584 if (iop_send_sync_msg(hba, 585 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { 586 printk(KERN_ERR "scsi%d: fail to start background task\n", 587 hba->host->host_no); 588 return -1; 589 } 590 return 0; 591} 592 593static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index) 594{ 595 u32 mem_base_phy, length; 596 void __iomem *mem_base_virt; 597 598 struct pci_dev *pcidev = hba->pcidev; 599 600 601 if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) { 602 printk(KERN_ERR "scsi%d: pci resource invalid\n", 603 hba->host->host_no); 604 return NULL; 605 } 606 607 mem_base_phy = pci_resource_start(pcidev, index); 608 length = pci_resource_len(pcidev, index); 609 mem_base_virt = ioremap(mem_base_phy, length); 610 611 if (!mem_base_virt) { 612 printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n", 613 hba->host->host_no); 614 return NULL; 615 } 616 return mem_base_virt; 617} 618 619static int hptiop_map_pci_bar_itl(struct hptiop_hba *hba) 620{ 621 struct pci_dev *pcidev = hba->pcidev; 622 hba->u.itl.iop = hptiop_map_pci_bar(hba, 0); 623 if (hba->u.itl.iop == NULL) 624 return -1; 625 if ((pcidev->device & 0xff00) == 0x4400) { 626 hba->u.itl.plx = hba->u.itl.iop; 627 hba->u.itl.iop = hptiop_map_pci_bar(hba, 2); 628 if (hba->u.itl.iop == NULL) { 629 iounmap(hba->u.itl.plx); 630 return -1; 631 } 632 } 633 return 0; 634} 635 636static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba) 637{ 638 if (hba->u.itl.plx) 639 iounmap(hba->u.itl.plx); 640 iounmap(hba->u.itl.iop); 641} 642 643static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba) 644{ 645 hba->u.mv.regs = hptiop_map_pci_bar(hba, 0); 646 if (hba->u.mv.regs == NULL) 647 return -1; 648 649 hba->u.mv.mu = hptiop_map_pci_bar(hba, 2); 650 if (hba->u.mv.mu == NULL) { 651 iounmap(hba->u.mv.regs); 652 return -1; 653 } 654 655 return 0; 656} 657 658static int hptiop_map_pci_bar_mvfrey(struct hptiop_hba *hba) 659{ 660 hba->u.mvfrey.config = hptiop_map_pci_bar(hba, 0); 661 if (hba->u.mvfrey.config == NULL) 662 return -1; 663 664 hba->u.mvfrey.mu = hptiop_map_pci_bar(hba, 2); 665 if (hba->u.mvfrey.mu == NULL) { 666 iounmap(hba->u.mvfrey.config); 667 return -1; 668 } 669 670 return 0; 671} 672 673static void hptiop_unmap_pci_bar_mv(struct hptiop_hba *hba) 674{ 675 iounmap(hba->u.mv.regs); 676 iounmap(hba->u.mv.mu); 677} 678 679static void hptiop_unmap_pci_bar_mvfrey(struct hptiop_hba *hba) 680{ 681 iounmap(hba->u.mvfrey.config); 682 iounmap(hba->u.mvfrey.mu); 683} 684 685static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg) 686{ 687 dprintk("iop message 0x%x\n", msg); 688 689 if (msg == IOPMU_INBOUND_MSG0_NOP || 690 msg == IOPMU_INBOUND_MSG0_RESET_COMM) 691 hba->msg_done = 1; 692 693 if (!hba->initialized) 694 return; 695 696 if (msg == IOPMU_INBOUND_MSG0_RESET) { 697 atomic_set(&hba->resetting, 0); 698 wake_up(&hba->reset_wq); 699 } 700 else if (msg <= IOPMU_INBOUND_MSG0_MAX) 701 hba->msg_done = 1; 702} 703 704static struct hptiop_request *get_req(struct hptiop_hba *hba) 705{ 706 struct hptiop_request *ret; 707 708 dprintk("get_req : req=%p\n", hba->req_list); 709 710 ret = hba->req_list; 711 if (ret) 712 hba->req_list = ret->next; 713 714 return ret; 715} 716 717static void free_req(struct hptiop_hba *hba, struct hptiop_request *req) 718{ 719 dprintk("free_req(%d, %p)\n", req->index, req); 720 req->next = hba->req_list; 721 hba->req_list = req; 722} 723 724static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag, 725 struct hpt_iop_request_scsi_command *req) 726{ 727 struct scsi_cmnd *scp; 728 729 dprintk("hptiop_finish_scsi_req: req=%p, type=%d, " 730 "result=%d, context=0x%x tag=%d\n", 731 req, req->header.type, req->header.result, 732 req->header.context, tag); 733 734 BUG_ON(!req->header.result); 735 BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND)); 736 737 scp = hba->reqs[tag].scp; 738 739 if (HPT_SCP(scp)->mapped) 740 scsi_dma_unmap(scp); 741 742 switch (le32_to_cpu(req->header.result)) { 743 case IOP_RESULT_SUCCESS: 744 scsi_set_resid(scp, 745 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); 746 scp->result = (DID_OK<<16); 747 break; 748 case IOP_RESULT_BAD_TARGET: 749 scp->result = (DID_BAD_TARGET<<16); 750 break; 751 case IOP_RESULT_BUSY: 752 scp->result = (DID_BUS_BUSY<<16); 753 break; 754 case IOP_RESULT_RESET: 755 scp->result = (DID_RESET<<16); 756 break; 757 case IOP_RESULT_FAIL: 758 scp->result = (DID_ERROR<<16); 759 break; 760 case IOP_RESULT_INVALID_REQUEST: 761 scp->result = (DID_ABORT<<16); 762 break; 763 case IOP_RESULT_CHECK_CONDITION: 764 scsi_set_resid(scp, 765 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); 766 scp->result = SAM_STAT_CHECK_CONDITION; 767 memcpy(scp->sense_buffer, &req->sg_list, 768 min_t(size_t, SCSI_SENSE_BUFFERSIZE, 769 le32_to_cpu(req->dataxfer_length))); 770 goto skip_resid; 771 break; 772 773 default: 774 scp->result = DRIVER_INVALID << 24 | DID_ABORT << 16; 775 break; 776 } 777 778 scsi_set_resid(scp, 779 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); 780 781skip_resid: 782 dprintk("scsi_done(%p)\n", scp); 783 scp->scsi_done(scp); 784 free_req(hba, &hba->reqs[tag]); 785} 786 787static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 _tag) 788{ 789 struct hpt_iop_request_scsi_command *req; 790 u32 tag; 791 792 if (hba->iopintf_v2) { 793 tag = _tag & ~IOPMU_QUEUE_REQUEST_RESULT_BIT; 794 req = hba->reqs[tag].req_virt; 795 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT)) 796 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS); 797 } else { 798 tag = _tag; 799 req = hba->reqs[tag].req_virt; 800 } 801 802 hptiop_finish_scsi_req(hba, tag, req); 803} 804 805void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag) 806{ 807 struct hpt_iop_request_header __iomem *req; 808 struct hpt_iop_request_ioctl_command __iomem *p; 809 struct hpt_ioctl_k *arg; 810 811 req = (struct hpt_iop_request_header __iomem *) 812 ((unsigned long)hba->u.itl.iop + tag); 813 dprintk("hptiop_iop_request_callback_itl: req=%p, type=%d, " 814 "result=%d, context=0x%x tag=%d\n", 815 req, readl(&req->type), readl(&req->result), 816 readl(&req->context), tag); 817 818 BUG_ON(!readl(&req->result)); 819 BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND); 820 821 p = (struct hpt_iop_request_ioctl_command __iomem *)req; 822 arg = (struct hpt_ioctl_k *)(unsigned long) 823 (readl(&req->context) | 824 ((u64)readl(&req->context_hi32)<<32)); 825 826 if (readl(&req->result) == IOP_RESULT_SUCCESS) { 827 arg->result = HPT_IOCTL_RESULT_OK; 828 829 if (arg->outbuf_size) 830 memcpy_fromio(arg->outbuf, 831 &p->buf[(readl(&p->inbuf_size) + 3)& ~3], 832 arg->outbuf_size); 833 834 if (arg->bytes_returned) 835 *arg->bytes_returned = arg->outbuf_size; 836 } 837 else 838 arg->result = HPT_IOCTL_RESULT_FAILED; 839 840 arg->done(arg); 841 writel(tag, &hba->u.itl.iop->outbound_queue); 842} 843 844static irqreturn_t hptiop_intr(int irq, void *dev_id) 845{ 846 struct hptiop_hba *hba = dev_id; 847 int handled; 848 unsigned long flags; 849 850 spin_lock_irqsave(hba->host->host_lock, flags); 851 handled = hba->ops->iop_intr(hba); 852 spin_unlock_irqrestore(hba->host->host_lock, flags); 853 854 return handled; 855} 856 857static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg) 858{ 859 struct Scsi_Host *host = scp->device->host; 860 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 861 struct scatterlist *sg; 862 int idx, nseg; 863 864 nseg = scsi_dma_map(scp); 865 BUG_ON(nseg < 0); 866 if (!nseg) 867 return 0; 868 869 HPT_SCP(scp)->sgcnt = nseg; 870 HPT_SCP(scp)->mapped = 1; 871 872 BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors); 873 874 scsi_for_each_sg(scp, sg, HPT_SCP(scp)->sgcnt, idx) { 875 psg[idx].pci_address = cpu_to_le64(sg_dma_address(sg)) | 876 hba->ops->host_phy_flag; 877 psg[idx].size = cpu_to_le32(sg_dma_len(sg)); 878 psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ? 879 cpu_to_le32(1) : 0; 880 } 881 return HPT_SCP(scp)->sgcnt; 882} 883 884static void hptiop_post_req_itl(struct hptiop_hba *hba, 885 struct hptiop_request *_req) 886{ 887 struct hpt_iop_request_header *reqhdr = _req->req_virt; 888 889 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | 890 (u32)_req->index); 891 reqhdr->context_hi32 = 0; 892 893 if (hba->iopintf_v2) { 894 u32 size, size_bits; 895 896 size = le32_to_cpu(reqhdr->size); 897 if (size < 256) 898 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT; 899 else if (size < 512) 900 size_bits = IOPMU_QUEUE_ADDR_HOST_BIT; 901 else 902 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT | 903 IOPMU_QUEUE_ADDR_HOST_BIT; 904 writel(_req->req_shifted_phy | size_bits, 905 &hba->u.itl.iop->inbound_queue); 906 } else 907 writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT, 908 &hba->u.itl.iop->inbound_queue); 909} 910 911static void hptiop_post_req_mv(struct hptiop_hba *hba, 912 struct hptiop_request *_req) 913{ 914 struct hpt_iop_request_header *reqhdr = _req->req_virt; 915 u32 size, size_bit; 916 917 reqhdr->context = cpu_to_le32(_req->index<<8 | 918 IOP_REQUEST_TYPE_SCSI_COMMAND<<5); 919 reqhdr->context_hi32 = 0; 920 size = le32_to_cpu(reqhdr->size); 921 922 if (size <= 256) 923 size_bit = 0; 924 else if (size <= 256*2) 925 size_bit = 1; 926 else if (size <= 256*3) 927 size_bit = 2; 928 else 929 size_bit = 3; 930 931 mv_inbound_write((_req->req_shifted_phy << 5) | 932 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bit, hba); 933} 934 935static void hptiop_post_req_mvfrey(struct hptiop_hba *hba, 936 struct hptiop_request *_req) 937{ 938 struct hpt_iop_request_header *reqhdr = _req->req_virt; 939 u32 index; 940 941 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT | 942 IOP_REQUEST_FLAG_ADDR_BITS | 943 ((_req->req_shifted_phy >> 11) & 0xffff0000)); 944 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | 945 (_req->index << 4) | reqhdr->type); 946 reqhdr->context_hi32 = cpu_to_le32((_req->req_shifted_phy << 5) & 947 0xffffffff); 948 949 hba->u.mvfrey.inlist_wptr++; 950 index = hba->u.mvfrey.inlist_wptr & 0x3fff; 951 952 if (index == hba->u.mvfrey.list_count) { 953 index = 0; 954 hba->u.mvfrey.inlist_wptr &= ~0x3fff; 955 hba->u.mvfrey.inlist_wptr ^= CL_POINTER_TOGGLE; 956 } 957 958 hba->u.mvfrey.inlist[index].addr = 959 (dma_addr_t)_req->req_shifted_phy << 5; 960 hba->u.mvfrey.inlist[index].intrfc_len = (reqhdr->size + 3) / 4; 961 writel(hba->u.mvfrey.inlist_wptr, 962 &(hba->u.mvfrey.mu->inbound_write_ptr)); 963 readl(&(hba->u.mvfrey.mu->inbound_write_ptr)); 964} 965 966static int hptiop_reset_comm_itl(struct hptiop_hba *hba) 967{ 968 return 0; 969} 970 971static int hptiop_reset_comm_mv(struct hptiop_hba *hba) 972{ 973 return 0; 974} 975 976static int hptiop_reset_comm_mvfrey(struct hptiop_hba *hba) 977{ 978 u32 list_count = hba->u.mvfrey.list_count; 979 980 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_RESET_COMM, 3000)) 981 return -1; 982 983 /* wait 100ms for MCU ready */ 984 msleep(100); 985 986 writel(cpu_to_le32(hba->u.mvfrey.inlist_phy & 0xffffffff), 987 &(hba->u.mvfrey.mu->inbound_base)); 988 writel(cpu_to_le32((hba->u.mvfrey.inlist_phy >> 16) >> 16), 989 &(hba->u.mvfrey.mu->inbound_base_high)); 990 991 writel(cpu_to_le32(hba->u.mvfrey.outlist_phy & 0xffffffff), 992 &(hba->u.mvfrey.mu->outbound_base)); 993 writel(cpu_to_le32((hba->u.mvfrey.outlist_phy >> 16) >> 16), 994 &(hba->u.mvfrey.mu->outbound_base_high)); 995 996 writel(cpu_to_le32(hba->u.mvfrey.outlist_cptr_phy & 0xffffffff), 997 &(hba->u.mvfrey.mu->outbound_shadow_base)); 998 writel(cpu_to_le32((hba->u.mvfrey.outlist_cptr_phy >> 16) >> 16), 999 &(hba->u.mvfrey.mu->outbound_shadow_base_high)); 1000 1001 hba->u.mvfrey.inlist_wptr = (list_count - 1) | CL_POINTER_TOGGLE; 1002 *hba->u.mvfrey.outlist_cptr = (list_count - 1) | CL_POINTER_TOGGLE; 1003 hba->u.mvfrey.outlist_rptr = list_count - 1; 1004 return 0; 1005} 1006 1007static int hptiop_queuecommand_lck(struct scsi_cmnd *scp, 1008 void (*done)(struct scsi_cmnd *)) 1009{ 1010 struct Scsi_Host *host = scp->device->host; 1011 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 1012 struct hpt_iop_request_scsi_command *req; 1013 int sg_count = 0; 1014 struct hptiop_request *_req; 1015 1016 BUG_ON(!done); 1017 scp->scsi_done = done; 1018 1019 _req = get_req(hba); 1020 if (_req == NULL) { 1021 dprintk("hptiop_queuecmd : no free req\n"); 1022 return SCSI_MLQUEUE_HOST_BUSY; 1023 } 1024 1025 _req->scp = scp; 1026 1027 dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%llu cdb=(%08x-%08x-%08x-%08x) " 1028 "req_index=%d, req=%p\n", 1029 scp, 1030 host->host_no, scp->device->channel, 1031 scp->device->id, scp->device->lun, 1032 cpu_to_be32(((u32 *)scp->cmnd)[0]), 1033 cpu_to_be32(((u32 *)scp->cmnd)[1]), 1034 cpu_to_be32(((u32 *)scp->cmnd)[2]), 1035 cpu_to_be32(((u32 *)scp->cmnd)[3]), 1036 _req->index, _req->req_virt); 1037 1038 scp->result = 0; 1039 1040 if (scp->device->channel || scp->device->lun || 1041 scp->device->id > hba->max_devices) { 1042 scp->result = DID_BAD_TARGET << 16; 1043 free_req(hba, _req); 1044 goto cmd_done; 1045 } 1046 1047 req = _req->req_virt; 1048 1049 /* build S/G table */ 1050 sg_count = hptiop_buildsgl(scp, req->sg_list); 1051 if (!sg_count) 1052 HPT_SCP(scp)->mapped = 0; 1053 1054 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 1055 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND); 1056 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 1057 req->dataxfer_length = cpu_to_le32(scsi_bufflen(scp)); 1058 req->channel = scp->device->channel; 1059 req->target = scp->device->id; 1060 req->lun = scp->device->lun; 1061 req->header.size = cpu_to_le32( 1062 sizeof(struct hpt_iop_request_scsi_command) 1063 - sizeof(struct hpt_iopsg) 1064 + sg_count * sizeof(struct hpt_iopsg)); 1065 1066 memcpy(req->cdb, scp->cmnd, sizeof(req->cdb)); 1067 hba->ops->post_req(hba, _req); 1068 return 0; 1069 1070cmd_done: 1071 dprintk("scsi_done(scp=%p)\n", scp); 1072 scp->scsi_done(scp); 1073 return 0; 1074} 1075 1076static DEF_SCSI_QCMD(hptiop_queuecommand) 1077 1078static const char *hptiop_info(struct Scsi_Host *host) 1079{ 1080 return driver_name_long; 1081} 1082 1083static int hptiop_reset_hba(struct hptiop_hba *hba) 1084{ 1085 if (atomic_xchg(&hba->resetting, 1) == 0) { 1086 atomic_inc(&hba->reset_count); 1087 hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET); 1088 } 1089 1090 wait_event_timeout(hba->reset_wq, 1091 atomic_read(&hba->resetting) == 0, 60 * HZ); 1092 1093 if (atomic_read(&hba->resetting)) { 1094 /* IOP is in unknown state, abort reset */ 1095 printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no); 1096 return -1; 1097 } 1098 1099 if (iop_send_sync_msg(hba, 1100 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { 1101 dprintk("scsi%d: fail to start background task\n", 1102 hba->host->host_no); 1103 } 1104 1105 return 0; 1106} 1107 1108static int hptiop_reset(struct scsi_cmnd *scp) 1109{ 1110 struct Scsi_Host * host = scp->device->host; 1111 struct hptiop_hba * hba = (struct hptiop_hba *)host->hostdata; 1112 1113 printk(KERN_WARNING "hptiop_reset(%d/%d/%d) scp=%p\n", 1114 scp->device->host->host_no, scp->device->channel, 1115 scp->device->id, scp); 1116 1117 return hptiop_reset_hba(hba)? FAILED : SUCCESS; 1118} 1119 1120static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, 1121 int queue_depth) 1122{ 1123 struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata; 1124 1125 if (queue_depth > hba->max_requests) 1126 queue_depth = hba->max_requests; 1127 return scsi_change_queue_depth(sdev, queue_depth); 1128} 1129 1130static ssize_t hptiop_show_version(struct device *dev, 1131 struct device_attribute *attr, char *buf) 1132{ 1133 return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver); 1134} 1135 1136static ssize_t hptiop_show_fw_version(struct device *dev, 1137 struct device_attribute *attr, char *buf) 1138{ 1139 struct Scsi_Host *host = class_to_shost(dev); 1140 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 1141 1142 return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n", 1143 hba->firmware_version >> 24, 1144 (hba->firmware_version >> 16) & 0xff, 1145 (hba->firmware_version >> 8) & 0xff, 1146 hba->firmware_version & 0xff); 1147} 1148 1149static struct device_attribute hptiop_attr_version = { 1150 .attr = { 1151 .name = "driver-version", 1152 .mode = S_IRUGO, 1153 }, 1154 .show = hptiop_show_version, 1155}; 1156 1157static struct device_attribute hptiop_attr_fw_version = { 1158 .attr = { 1159 .name = "firmware-version", 1160 .mode = S_IRUGO, 1161 }, 1162 .show = hptiop_show_fw_version, 1163}; 1164 1165static struct device_attribute *hptiop_attrs[] = { 1166 &hptiop_attr_version, 1167 &hptiop_attr_fw_version, 1168 NULL 1169}; 1170 1171static struct scsi_host_template driver_template = { 1172 .module = THIS_MODULE, 1173 .name = driver_name, 1174 .queuecommand = hptiop_queuecommand, 1175 .eh_device_reset_handler = hptiop_reset, 1176 .eh_bus_reset_handler = hptiop_reset, 1177 .info = hptiop_info, 1178 .emulated = 0, 1179 .use_clustering = ENABLE_CLUSTERING, 1180 .proc_name = driver_name, 1181 .shost_attrs = hptiop_attrs, 1182 .this_id = -1, 1183 .change_queue_depth = hptiop_adjust_disk_queue_depth, 1184}; 1185 1186static int hptiop_internal_memalloc_itl(struct hptiop_hba *hba) 1187{ 1188 return 0; 1189} 1190 1191static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba) 1192{ 1193 hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev, 1194 0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL); 1195 if (hba->u.mv.internal_req) 1196 return 0; 1197 else 1198 return -1; 1199} 1200 1201static int hptiop_internal_memalloc_mvfrey(struct hptiop_hba *hba) 1202{ 1203 u32 list_count = readl(&hba->u.mvfrey.mu->inbound_conf_ctl); 1204 char *p; 1205 dma_addr_t phy; 1206 1207 BUG_ON(hba->max_request_size == 0); 1208 1209 if (list_count == 0) { 1210 BUG_ON(1); 1211 return -1; 1212 } 1213 1214 list_count >>= 16; 1215 1216 hba->u.mvfrey.list_count = list_count; 1217 hba->u.mvfrey.internal_mem_size = 0x800 + 1218 list_count * sizeof(struct mvfrey_inlist_entry) + 1219 list_count * sizeof(struct mvfrey_outlist_entry) + 1220 sizeof(int); 1221 1222 p = dma_alloc_coherent(&hba->pcidev->dev, 1223 hba->u.mvfrey.internal_mem_size, &phy, GFP_KERNEL); 1224 if (!p) 1225 return -1; 1226 1227 hba->u.mvfrey.internal_req.req_virt = p; 1228 hba->u.mvfrey.internal_req.req_shifted_phy = phy >> 5; 1229 hba->u.mvfrey.internal_req.scp = NULL; 1230 hba->u.mvfrey.internal_req.next = NULL; 1231 1232 p += 0x800; 1233 phy += 0x800; 1234 1235 hba->u.mvfrey.inlist = (struct mvfrey_inlist_entry *)p; 1236 hba->u.mvfrey.inlist_phy = phy; 1237 1238 p += list_count * sizeof(struct mvfrey_inlist_entry); 1239 phy += list_count * sizeof(struct mvfrey_inlist_entry); 1240 1241 hba->u.mvfrey.outlist = (struct mvfrey_outlist_entry *)p; 1242 hba->u.mvfrey.outlist_phy = phy; 1243 1244 p += list_count * sizeof(struct mvfrey_outlist_entry); 1245 phy += list_count * sizeof(struct mvfrey_outlist_entry); 1246 1247 hba->u.mvfrey.outlist_cptr = (__le32 *)p; 1248 hba->u.mvfrey.outlist_cptr_phy = phy; 1249 1250 return 0; 1251} 1252 1253static int hptiop_internal_memfree_itl(struct hptiop_hba *hba) 1254{ 1255 return 0; 1256} 1257 1258static int hptiop_internal_memfree_mv(struct hptiop_hba *hba) 1259{ 1260 if (hba->u.mv.internal_req) { 1261 dma_free_coherent(&hba->pcidev->dev, 0x800, 1262 hba->u.mv.internal_req, hba->u.mv.internal_req_phy); 1263 return 0; 1264 } else 1265 return -1; 1266} 1267 1268static int hptiop_internal_memfree_mvfrey(struct hptiop_hba *hba) 1269{ 1270 if (hba->u.mvfrey.internal_req.req_virt) { 1271 dma_free_coherent(&hba->pcidev->dev, 1272 hba->u.mvfrey.internal_mem_size, 1273 hba->u.mvfrey.internal_req.req_virt, 1274 (dma_addr_t) 1275 hba->u.mvfrey.internal_req.req_shifted_phy << 5); 1276 return 0; 1277 } else 1278 return -1; 1279} 1280 1281static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id) 1282{ 1283 struct Scsi_Host *host = NULL; 1284 struct hptiop_hba *hba; 1285 struct hptiop_adapter_ops *iop_ops; 1286 struct hpt_iop_request_get_config iop_config; 1287 struct hpt_iop_request_set_config set_config; 1288 dma_addr_t start_phy; 1289 void *start_virt; 1290 u32 offset, i, req_size; 1291 1292 dprintk("hptiop_probe(%p)\n", pcidev); 1293 1294 if (pci_enable_device(pcidev)) { 1295 printk(KERN_ERR "hptiop: fail to enable pci device\n"); 1296 return -ENODEV; 1297 } 1298 1299 printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n", 1300 pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7, 1301 pcidev->irq); 1302 1303 pci_set_master(pcidev); 1304 1305 /* Enable 64bit DMA if possible */ 1306 iop_ops = (struct hptiop_adapter_ops *)id->driver_data; 1307 if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(iop_ops->hw_dma_bit_mask))) { 1308 if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(32))) { 1309 printk(KERN_ERR "hptiop: fail to set dma_mask\n"); 1310 goto disable_pci_device; 1311 } 1312 } 1313 1314 if (pci_request_regions(pcidev, driver_name)) { 1315 printk(KERN_ERR "hptiop: pci_request_regions failed\n"); 1316 goto disable_pci_device; 1317 } 1318 1319 host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba)); 1320 if (!host) { 1321 printk(KERN_ERR "hptiop: fail to alloc scsi host\n"); 1322 goto free_pci_regions; 1323 } 1324 1325 hba = (struct hptiop_hba *)host->hostdata; 1326 1327 hba->ops = iop_ops; 1328 hba->pcidev = pcidev; 1329 hba->host = host; 1330 hba->initialized = 0; 1331 hba->iopintf_v2 = 0; 1332 1333 atomic_set(&hba->resetting, 0); 1334 atomic_set(&hba->reset_count, 0); 1335 1336 init_waitqueue_head(&hba->reset_wq); 1337 init_waitqueue_head(&hba->ioctl_wq); 1338 1339 host->max_lun = 1; 1340 host->max_channel = 0; 1341 host->io_port = 0; 1342 host->n_io_port = 0; 1343 host->irq = pcidev->irq; 1344 1345 if (hba->ops->map_pci_bar(hba)) 1346 goto free_scsi_host; 1347 1348 if (hba->ops->iop_wait_ready(hba, 20000)) { 1349 printk(KERN_ERR "scsi%d: firmware not ready\n", 1350 hba->host->host_no); 1351 goto unmap_pci_bar; 1352 } 1353 1354 if (hba->ops->family == MV_BASED_IOP) { 1355 if (hba->ops->internal_memalloc(hba)) { 1356 printk(KERN_ERR "scsi%d: internal_memalloc failed\n", 1357 hba->host->host_no); 1358 goto unmap_pci_bar; 1359 } 1360 } 1361 1362 if (hba->ops->get_config(hba, &iop_config)) { 1363 printk(KERN_ERR "scsi%d: get config failed\n", 1364 hba->host->host_no); 1365 goto unmap_pci_bar; 1366 } 1367 1368 hba->max_requests = min(le32_to_cpu(iop_config.max_requests), 1369 HPTIOP_MAX_REQUESTS); 1370 hba->max_devices = le32_to_cpu(iop_config.max_devices); 1371 hba->max_request_size = le32_to_cpu(iop_config.request_size); 1372 hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count); 1373 hba->firmware_version = le32_to_cpu(iop_config.firmware_version); 1374 hba->interface_version = le32_to_cpu(iop_config.interface_version); 1375 hba->sdram_size = le32_to_cpu(iop_config.sdram_size); 1376 1377 if (hba->ops->family == MVFREY_BASED_IOP) { 1378 if (hba->ops->internal_memalloc(hba)) { 1379 printk(KERN_ERR "scsi%d: internal_memalloc failed\n", 1380 hba->host->host_no); 1381 goto unmap_pci_bar; 1382 } 1383 if (hba->ops->reset_comm(hba)) { 1384 printk(KERN_ERR "scsi%d: reset comm failed\n", 1385 hba->host->host_no); 1386 goto unmap_pci_bar; 1387 } 1388 } 1389 1390 if (hba->firmware_version > 0x01020000 || 1391 hba->interface_version > 0x01020000) 1392 hba->iopintf_v2 = 1; 1393 1394 host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9; 1395 host->max_id = le32_to_cpu(iop_config.max_devices); 1396 host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count); 1397 host->can_queue = le32_to_cpu(iop_config.max_requests); 1398 host->cmd_per_lun = le32_to_cpu(iop_config.max_requests); 1399 host->max_cmd_len = 16; 1400 1401 req_size = sizeof(struct hpt_iop_request_scsi_command) 1402 + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1); 1403 if ((req_size & 0x1f) != 0) 1404 req_size = (req_size + 0x1f) & ~0x1f; 1405 1406 memset(&set_config, 0, sizeof(struct hpt_iop_request_set_config)); 1407 set_config.iop_id = cpu_to_le32(host->host_no); 1408 set_config.vbus_id = cpu_to_le16(host->host_no); 1409 set_config.max_host_request_size = cpu_to_le16(req_size); 1410 1411 if (hba->ops->set_config(hba, &set_config)) { 1412 printk(KERN_ERR "scsi%d: set config failed\n", 1413 hba->host->host_no); 1414 goto unmap_pci_bar; 1415 } 1416 1417 pci_set_drvdata(pcidev, host); 1418 1419 if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED, 1420 driver_name, hba)) { 1421 printk(KERN_ERR "scsi%d: request irq %d failed\n", 1422 hba->host->host_no, pcidev->irq); 1423 goto unmap_pci_bar; 1424 } 1425 1426 /* Allocate request mem */ 1427 1428 dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests); 1429 1430 hba->req_size = req_size; 1431 start_virt = dma_alloc_coherent(&pcidev->dev, 1432 hba->req_size*hba->max_requests + 0x20, 1433 &start_phy, GFP_KERNEL); 1434 1435 if (!start_virt) { 1436 printk(KERN_ERR "scsi%d: fail to alloc request mem\n", 1437 hba->host->host_no); 1438 goto free_request_irq; 1439 } 1440 1441 hba->dma_coherent = start_virt; 1442 hba->dma_coherent_handle = start_phy; 1443 1444 if ((start_phy & 0x1f) != 0) { 1445 offset = ((start_phy + 0x1f) & ~0x1f) - start_phy; 1446 start_phy += offset; 1447 start_virt += offset; 1448 } 1449 1450 hba->req_list = NULL; 1451 for (i = 0; i < hba->max_requests; i++) { 1452 hba->reqs[i].next = NULL; 1453 hba->reqs[i].req_virt = start_virt; 1454 hba->reqs[i].req_shifted_phy = start_phy >> 5; 1455 hba->reqs[i].index = i; 1456 free_req(hba, &hba->reqs[i]); 1457 start_virt = (char *)start_virt + hba->req_size; 1458 start_phy = start_phy + hba->req_size; 1459 } 1460 1461 /* Enable Interrupt and start background task */ 1462 if (hptiop_initialize_iop(hba)) 1463 goto free_request_mem; 1464 1465 if (scsi_add_host(host, &pcidev->dev)) { 1466 printk(KERN_ERR "scsi%d: scsi_add_host failed\n", 1467 hba->host->host_no); 1468 goto free_request_mem; 1469 } 1470 1471 scsi_scan_host(host); 1472 1473 dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no); 1474 return 0; 1475 1476free_request_mem: 1477 dma_free_coherent(&hba->pcidev->dev, 1478 hba->req_size * hba->max_requests + 0x20, 1479 hba->dma_coherent, hba->dma_coherent_handle); 1480 1481free_request_irq: 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 1550 dprintk("scsi%d: hptiop_remove\n", hba->host->host_no); 1551 1552 scsi_remove_host(host); 1553 1554 hptiop_shutdown(pcidev); 1555 1556 free_irq(hba->pcidev->irq, hba); 1557 1558 dma_free_coherent(&hba->pcidev->dev, 1559 hba->req_size * hba->max_requests + 0x20, 1560 hba->dma_coherent, 1561 hba->dma_coherent_handle); 1562 1563 hba->ops->internal_memfree(hba); 1564 1565 hba->ops->unmap_pci_bar(hba); 1566 1567 pci_release_regions(hba->pcidev); 1568 pci_set_drvdata(hba->pcidev, NULL); 1569 pci_disable_device(hba->pcidev); 1570 1571 scsi_host_put(host); 1572} 1573 1574static struct hptiop_adapter_ops hptiop_itl_ops = { 1575 .family = INTEL_BASED_IOP, 1576 .iop_wait_ready = iop_wait_ready_itl, 1577 .internal_memalloc = hptiop_internal_memalloc_itl, 1578 .internal_memfree = hptiop_internal_memfree_itl, 1579 .map_pci_bar = hptiop_map_pci_bar_itl, 1580 .unmap_pci_bar = hptiop_unmap_pci_bar_itl, 1581 .enable_intr = hptiop_enable_intr_itl, 1582 .disable_intr = hptiop_disable_intr_itl, 1583 .get_config = iop_get_config_itl, 1584 .set_config = iop_set_config_itl, 1585 .iop_intr = iop_intr_itl, 1586 .post_msg = hptiop_post_msg_itl, 1587 .post_req = hptiop_post_req_itl, 1588 .hw_dma_bit_mask = 64, 1589 .reset_comm = hptiop_reset_comm_itl, 1590 .host_phy_flag = cpu_to_le64(0), 1591}; 1592 1593static struct hptiop_adapter_ops hptiop_mv_ops = { 1594 .family = MV_BASED_IOP, 1595 .iop_wait_ready = iop_wait_ready_mv, 1596 .internal_memalloc = hptiop_internal_memalloc_mv, 1597 .internal_memfree = hptiop_internal_memfree_mv, 1598 .map_pci_bar = hptiop_map_pci_bar_mv, 1599 .unmap_pci_bar = hptiop_unmap_pci_bar_mv, 1600 .enable_intr = hptiop_enable_intr_mv, 1601 .disable_intr = hptiop_disable_intr_mv, 1602 .get_config = iop_get_config_mv, 1603 .set_config = iop_set_config_mv, 1604 .iop_intr = iop_intr_mv, 1605 .post_msg = hptiop_post_msg_mv, 1606 .post_req = hptiop_post_req_mv, 1607 .hw_dma_bit_mask = 33, 1608 .reset_comm = hptiop_reset_comm_mv, 1609 .host_phy_flag = cpu_to_le64(0), 1610}; 1611 1612static struct hptiop_adapter_ops hptiop_mvfrey_ops = { 1613 .family = MVFREY_BASED_IOP, 1614 .iop_wait_ready = iop_wait_ready_mvfrey, 1615 .internal_memalloc = hptiop_internal_memalloc_mvfrey, 1616 .internal_memfree = hptiop_internal_memfree_mvfrey, 1617 .map_pci_bar = hptiop_map_pci_bar_mvfrey, 1618 .unmap_pci_bar = hptiop_unmap_pci_bar_mvfrey, 1619 .enable_intr = hptiop_enable_intr_mvfrey, 1620 .disable_intr = hptiop_disable_intr_mvfrey, 1621 .get_config = iop_get_config_mvfrey, 1622 .set_config = iop_set_config_mvfrey, 1623 .iop_intr = iop_intr_mvfrey, 1624 .post_msg = hptiop_post_msg_mvfrey, 1625 .post_req = hptiop_post_req_mvfrey, 1626 .hw_dma_bit_mask = 64, 1627 .reset_comm = hptiop_reset_comm_mvfrey, 1628 .host_phy_flag = cpu_to_le64(1), 1629}; 1630 1631static struct pci_device_id hptiop_id_table[] = { 1632 { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops }, 1633 { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops }, 1634 { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops }, 1635 { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops }, 1636 { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops }, 1637 { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops }, 1638 { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops }, 1639 { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops }, 1640 { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops }, 1641 { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops }, 1642 { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops }, 1643 { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops }, 1644 { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops }, 1645 { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops }, 1646 { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops }, 1647 { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops }, 1648 { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops }, 1649 { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops }, 1650 { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops }, 1651 { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops }, 1652 { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops }, 1653 { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops }, 1654 { PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1655 { PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1656 {}, 1657}; 1658 1659MODULE_DEVICE_TABLE(pci, hptiop_id_table); 1660 1661static struct pci_driver hptiop_pci_driver = { 1662 .name = driver_name, 1663 .id_table = hptiop_id_table, 1664 .probe = hptiop_probe, 1665 .remove = hptiop_remove, 1666 .shutdown = hptiop_shutdown, 1667}; 1668 1669static int __init hptiop_module_init(void) 1670{ 1671 printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver); 1672 return pci_register_driver(&hptiop_pci_driver); 1673} 1674 1675static void __exit hptiop_module_exit(void) 1676{ 1677 pci_unregister_driver(&hptiop_pci_driver); 1678} 1679 1680 1681module_init(hptiop_module_init); 1682module_exit(hptiop_module_exit); 1683 1684MODULE_LICENSE("GPL"); 1685 1686