1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * HighPoint RR3xxx/4xxx controller driver for Linux 4 * Copyright (C) 2006-2015 HighPoint Technologies, Inc. All Rights Reserved. 5 * 6 * Please report bugs/comments/suggestions to linux@highpoint-tech.com 7 * 8 * For more information, visit http://www.highpoint-tech.com 9 */ 10 #include <linux/module.h> 11 #include <linux/types.h> 12 #include <linux/string.h> 13 #include <linux/kernel.h> 14 #include <linux/pci.h> 15 #include <linux/interrupt.h> 16 #include <linux/errno.h> 17 #include <linux/delay.h> 18 #include <linux/timer.h> 19 #include <linux/spinlock.h> 20 #include <linux/gfp.h> 21 #include <linux/uaccess.h> 22 #include <asm/io.h> 23 #include <asm/div64.h> 24 #include <scsi/scsi_cmnd.h> 25 #include <scsi/scsi_device.h> 26 #include <scsi/scsi.h> 27 #include <scsi/scsi_tcq.h> 28 #include <scsi/scsi_host.h> 29 30 #include "hptiop.h" 31 32 MODULE_AUTHOR("HighPoint Technologies, Inc."); 33 MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver"); 34 35 static char driver_name[] = "hptiop"; 36 static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver"; 37 static const char driver_ver[] = "v1.10.0"; 38 39 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec); 40 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag, 41 struct hpt_iop_request_scsi_command *req); 42 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag); 43 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag); 44 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg); 45 46 static int iop_wait_ready_itl(struct hptiop_hba *hba, u32 millisec) 47 { 48 u32 req = 0; 49 int i; 50 51 for (i = 0; i < millisec; i++) { 52 req = readl(&hba->u.itl.iop->inbound_queue); 53 if (req != IOPMU_QUEUE_EMPTY) 54 break; 55 msleep(1); 56 } 57 58 if (req != IOPMU_QUEUE_EMPTY) { 59 writel(req, &hba->u.itl.iop->outbound_queue); 60 readl(&hba->u.itl.iop->outbound_intstatus); 61 return 0; 62 } 63 64 return -1; 65 } 66 67 static int iop_wait_ready_mv(struct hptiop_hba *hba, u32 millisec) 68 { 69 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec); 70 } 71 72 static int iop_wait_ready_mvfrey(struct hptiop_hba *hba, u32 millisec) 73 { 74 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec); 75 } 76 77 static void hptiop_request_callback_itl(struct hptiop_hba *hba, u32 tag) 78 { 79 if (tag & IOPMU_QUEUE_ADDR_HOST_BIT) 80 hptiop_host_request_callback_itl(hba, 81 tag & ~IOPMU_QUEUE_ADDR_HOST_BIT); 82 else 83 hptiop_iop_request_callback_itl(hba, tag); 84 } 85 86 static void hptiop_drain_outbound_queue_itl(struct hptiop_hba *hba) 87 { 88 u32 req; 89 90 while ((req = readl(&hba->u.itl.iop->outbound_queue)) != 91 IOPMU_QUEUE_EMPTY) { 92 93 if (req & IOPMU_QUEUE_MASK_HOST_BITS) 94 hptiop_request_callback_itl(hba, req); 95 else { 96 struct hpt_iop_request_header __iomem * p; 97 98 p = (struct hpt_iop_request_header __iomem *) 99 ((char __iomem *)hba->u.itl.iop + req); 100 101 if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) { 102 if (readl(&p->context)) 103 hptiop_request_callback_itl(hba, req); 104 else 105 writel(1, &p->context); 106 } 107 else 108 hptiop_request_callback_itl(hba, req); 109 } 110 } 111 } 112 113 static int iop_intr_itl(struct hptiop_hba *hba) 114 { 115 struct hpt_iopmu_itl __iomem *iop = hba->u.itl.iop; 116 void __iomem *plx = hba->u.itl.plx; 117 u32 status; 118 int ret = 0; 119 120 if (plx && readl(plx + 0x11C5C) & 0xf) 121 writel(1, plx + 0x11C60); 122 123 status = readl(&iop->outbound_intstatus); 124 125 if (status & IOPMU_OUTBOUND_INT_MSG0) { 126 u32 msg = readl(&iop->outbound_msgaddr0); 127 128 dprintk("received outbound msg %x\n", msg); 129 writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus); 130 hptiop_message_callback(hba, msg); 131 ret = 1; 132 } 133 134 if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) { 135 hptiop_drain_outbound_queue_itl(hba); 136 ret = 1; 137 } 138 139 return ret; 140 } 141 142 static u64 mv_outbound_read(struct hpt_iopmu_mv __iomem *mu) 143 { 144 u32 outbound_tail = readl(&mu->outbound_tail); 145 u32 outbound_head = readl(&mu->outbound_head); 146 147 if (outbound_tail != outbound_head) { 148 u64 p; 149 150 memcpy_fromio(&p, &mu->outbound_q[mu->outbound_tail], 8); 151 outbound_tail++; 152 153 if (outbound_tail == MVIOP_QUEUE_LEN) 154 outbound_tail = 0; 155 writel(outbound_tail, &mu->outbound_tail); 156 return p; 157 } else 158 return 0; 159 } 160 161 static void mv_inbound_write(u64 p, struct hptiop_hba *hba) 162 { 163 u32 inbound_head = readl(&hba->u.mv.mu->inbound_head); 164 u32 head = inbound_head + 1; 165 166 if (head == MVIOP_QUEUE_LEN) 167 head = 0; 168 169 memcpy_toio(&hba->u.mv.mu->inbound_q[inbound_head], &p, 8); 170 writel(head, &hba->u.mv.mu->inbound_head); 171 writel(MVIOP_MU_INBOUND_INT_POSTQUEUE, 172 &hba->u.mv.regs->inbound_doorbell); 173 } 174 175 static void hptiop_request_callback_mv(struct hptiop_hba *hba, u64 tag) 176 { 177 u32 req_type = (tag >> 5) & 0x7; 178 struct hpt_iop_request_scsi_command *req; 179 180 dprintk("hptiop_request_callback_mv: tag=%llx\n", tag); 181 182 BUG_ON((tag & MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT) == 0); 183 184 switch (req_type) { 185 case IOP_REQUEST_TYPE_GET_CONFIG: 186 case IOP_REQUEST_TYPE_SET_CONFIG: 187 hba->msg_done = 1; 188 break; 189 190 case IOP_REQUEST_TYPE_SCSI_COMMAND: 191 req = hba->reqs[tag >> 8].req_virt; 192 if (likely(tag & MVIOP_MU_QUEUE_REQUEST_RESULT_BIT)) 193 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS); 194 195 hptiop_finish_scsi_req(hba, tag>>8, req); 196 break; 197 198 default: 199 break; 200 } 201 } 202 203 static int iop_intr_mv(struct hptiop_hba *hba) 204 { 205 u32 status; 206 int ret = 0; 207 208 status = readl(&hba->u.mv.regs->outbound_doorbell); 209 writel(~status, &hba->u.mv.regs->outbound_doorbell); 210 211 if (status & MVIOP_MU_OUTBOUND_INT_MSG) { 212 u32 msg; 213 msg = readl(&hba->u.mv.mu->outbound_msg); 214 dprintk("received outbound msg %x\n", msg); 215 hptiop_message_callback(hba, msg); 216 ret = 1; 217 } 218 219 if (status & MVIOP_MU_OUTBOUND_INT_POSTQUEUE) { 220 u64 tag; 221 222 while ((tag = mv_outbound_read(hba->u.mv.mu))) 223 hptiop_request_callback_mv(hba, tag); 224 ret = 1; 225 } 226 227 return ret; 228 } 229 230 static void hptiop_request_callback_mvfrey(struct hptiop_hba *hba, u32 _tag) 231 { 232 u32 req_type = _tag & 0xf; 233 struct hpt_iop_request_scsi_command *req; 234 235 switch (req_type) { 236 case IOP_REQUEST_TYPE_GET_CONFIG: 237 case IOP_REQUEST_TYPE_SET_CONFIG: 238 hba->msg_done = 1; 239 break; 240 241 case IOP_REQUEST_TYPE_SCSI_COMMAND: 242 req = hba->reqs[(_tag >> 4) & 0xff].req_virt; 243 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT)) 244 req->header.result = IOP_RESULT_SUCCESS; 245 hptiop_finish_scsi_req(hba, (_tag >> 4) & 0xff, req); 246 break; 247 248 default: 249 break; 250 } 251 } 252 253 static int iop_intr_mvfrey(struct hptiop_hba *hba) 254 { 255 u32 _tag, status, cptr, cur_rptr; 256 int ret = 0; 257 258 if (hba->initialized) 259 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 260 261 status = readl(&(hba->u.mvfrey.mu->f0_doorbell)); 262 if (status) { 263 writel(status, &(hba->u.mvfrey.mu->f0_doorbell)); 264 if (status & CPU_TO_F0_DRBL_MSG_BIT) { 265 u32 msg = readl(&(hba->u.mvfrey.mu->cpu_to_f0_msg_a)); 266 dprintk("received outbound msg %x\n", msg); 267 hptiop_message_callback(hba, msg); 268 } 269 ret = 1; 270 } 271 272 status = readl(&(hba->u.mvfrey.mu->isr_cause)); 273 if (status) { 274 writel(status, &(hba->u.mvfrey.mu->isr_cause)); 275 do { 276 cptr = *hba->u.mvfrey.outlist_cptr & 0xff; 277 cur_rptr = hba->u.mvfrey.outlist_rptr; 278 while (cur_rptr != cptr) { 279 cur_rptr++; 280 if (cur_rptr == hba->u.mvfrey.list_count) 281 cur_rptr = 0; 282 283 _tag = hba->u.mvfrey.outlist[cur_rptr].val; 284 BUG_ON(!(_tag & IOPMU_QUEUE_MASK_HOST_BITS)); 285 hptiop_request_callback_mvfrey(hba, _tag); 286 ret = 1; 287 } 288 hba->u.mvfrey.outlist_rptr = cur_rptr; 289 } while (cptr != (*hba->u.mvfrey.outlist_cptr & 0xff)); 290 } 291 292 if (hba->initialized) 293 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 294 295 return ret; 296 } 297 298 static int iop_send_sync_request_itl(struct hptiop_hba *hba, 299 void __iomem *_req, u32 millisec) 300 { 301 struct hpt_iop_request_header __iomem *req = _req; 302 u32 i; 303 304 writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, &req->flags); 305 writel(0, &req->context); 306 writel((unsigned long)req - (unsigned long)hba->u.itl.iop, 307 &hba->u.itl.iop->inbound_queue); 308 readl(&hba->u.itl.iop->outbound_intstatus); 309 310 for (i = 0; i < millisec; i++) { 311 iop_intr_itl(hba); 312 if (readl(&req->context)) 313 return 0; 314 msleep(1); 315 } 316 317 return -1; 318 } 319 320 static int iop_send_sync_request_mv(struct hptiop_hba *hba, 321 u32 size_bits, u32 millisec) 322 { 323 struct hpt_iop_request_header *reqhdr = hba->u.mv.internal_req; 324 u32 i; 325 326 hba->msg_done = 0; 327 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST); 328 mv_inbound_write(hba->u.mv.internal_req_phy | 329 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bits, hba); 330 331 for (i = 0; i < millisec; i++) { 332 iop_intr_mv(hba); 333 if (hba->msg_done) 334 return 0; 335 msleep(1); 336 } 337 return -1; 338 } 339 340 static int iop_send_sync_request_mvfrey(struct hptiop_hba *hba, 341 u32 size_bits, u32 millisec) 342 { 343 struct hpt_iop_request_header *reqhdr = 344 hba->u.mvfrey.internal_req.req_virt; 345 u32 i; 346 347 hba->msg_done = 0; 348 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST); 349 hba->ops->post_req(hba, &(hba->u.mvfrey.internal_req)); 350 351 for (i = 0; i < millisec; i++) { 352 iop_intr_mvfrey(hba); 353 if (hba->msg_done) 354 break; 355 msleep(1); 356 } 357 return hba->msg_done ? 0 : -1; 358 } 359 360 static void hptiop_post_msg_itl(struct hptiop_hba *hba, u32 msg) 361 { 362 writel(msg, &hba->u.itl.iop->inbound_msgaddr0); 363 readl(&hba->u.itl.iop->outbound_intstatus); 364 } 365 366 static void hptiop_post_msg_mv(struct hptiop_hba *hba, u32 msg) 367 { 368 writel(msg, &hba->u.mv.mu->inbound_msg); 369 writel(MVIOP_MU_INBOUND_INT_MSG, &hba->u.mv.regs->inbound_doorbell); 370 readl(&hba->u.mv.regs->inbound_doorbell); 371 } 372 373 static void hptiop_post_msg_mvfrey(struct hptiop_hba *hba, u32 msg) 374 { 375 writel(msg, &(hba->u.mvfrey.mu->f0_to_cpu_msg_a)); 376 readl(&(hba->u.mvfrey.mu->f0_to_cpu_msg_a)); 377 } 378 379 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec) 380 { 381 u32 i; 382 383 hba->msg_done = 0; 384 hba->ops->disable_intr(hba); 385 hba->ops->post_msg(hba, msg); 386 387 for (i = 0; i < millisec; i++) { 388 spin_lock_irq(hba->host->host_lock); 389 hba->ops->iop_intr(hba); 390 spin_unlock_irq(hba->host->host_lock); 391 if (hba->msg_done) 392 break; 393 msleep(1); 394 } 395 396 hba->ops->enable_intr(hba); 397 return hba->msg_done? 0 : -1; 398 } 399 400 static int iop_get_config_itl(struct hptiop_hba *hba, 401 struct hpt_iop_request_get_config *config) 402 { 403 u32 req32; 404 struct hpt_iop_request_get_config __iomem *req; 405 406 req32 = readl(&hba->u.itl.iop->inbound_queue); 407 if (req32 == IOPMU_QUEUE_EMPTY) 408 return -1; 409 410 req = (struct hpt_iop_request_get_config __iomem *) 411 ((unsigned long)hba->u.itl.iop + req32); 412 413 writel(0, &req->header.flags); 414 writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type); 415 writel(sizeof(struct hpt_iop_request_get_config), &req->header.size); 416 writel(IOP_RESULT_PENDING, &req->header.result); 417 418 if (iop_send_sync_request_itl(hba, req, 20000)) { 419 dprintk("Get config send cmd failed\n"); 420 return -1; 421 } 422 423 memcpy_fromio(config, req, sizeof(*config)); 424 writel(req32, &hba->u.itl.iop->outbound_queue); 425 return 0; 426 } 427 428 static int iop_get_config_mv(struct hptiop_hba *hba, 429 struct hpt_iop_request_get_config *config) 430 { 431 struct hpt_iop_request_get_config *req = hba->u.mv.internal_req; 432 433 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 434 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG); 435 req->header.size = 436 cpu_to_le32(sizeof(struct hpt_iop_request_get_config)); 437 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 438 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG<<5); 439 req->header.context_hi32 = 0; 440 441 if (iop_send_sync_request_mv(hba, 0, 20000)) { 442 dprintk("Get config send cmd failed\n"); 443 return -1; 444 } 445 446 memcpy(config, req, sizeof(struct hpt_iop_request_get_config)); 447 return 0; 448 } 449 450 static int iop_get_config_mvfrey(struct hptiop_hba *hba, 451 struct hpt_iop_request_get_config *config) 452 { 453 struct hpt_iop_request_get_config *info = hba->u.mvfrey.config; 454 455 if (info->header.size != sizeof(struct hpt_iop_request_get_config) || 456 info->header.type != IOP_REQUEST_TYPE_GET_CONFIG) 457 return -1; 458 459 config->interface_version = info->interface_version; 460 config->firmware_version = info->firmware_version; 461 config->max_requests = info->max_requests; 462 config->request_size = info->request_size; 463 config->max_sg_count = info->max_sg_count; 464 config->data_transfer_length = info->data_transfer_length; 465 config->alignment_mask = info->alignment_mask; 466 config->max_devices = info->max_devices; 467 config->sdram_size = info->sdram_size; 468 469 return 0; 470 } 471 472 static int iop_set_config_itl(struct hptiop_hba *hba, 473 struct hpt_iop_request_set_config *config) 474 { 475 u32 req32; 476 struct hpt_iop_request_set_config __iomem *req; 477 478 req32 = readl(&hba->u.itl.iop->inbound_queue); 479 if (req32 == IOPMU_QUEUE_EMPTY) 480 return -1; 481 482 req = (struct hpt_iop_request_set_config __iomem *) 483 ((unsigned long)hba->u.itl.iop + req32); 484 485 memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header), 486 (u8 *)config + sizeof(struct hpt_iop_request_header), 487 sizeof(struct hpt_iop_request_set_config) - 488 sizeof(struct hpt_iop_request_header)); 489 490 writel(0, &req->header.flags); 491 writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type); 492 writel(sizeof(struct hpt_iop_request_set_config), &req->header.size); 493 writel(IOP_RESULT_PENDING, &req->header.result); 494 495 if (iop_send_sync_request_itl(hba, req, 20000)) { 496 dprintk("Set config send cmd failed\n"); 497 return -1; 498 } 499 500 writel(req32, &hba->u.itl.iop->outbound_queue); 501 return 0; 502 } 503 504 static int iop_set_config_mv(struct hptiop_hba *hba, 505 struct hpt_iop_request_set_config *config) 506 { 507 struct hpt_iop_request_set_config *req = hba->u.mv.internal_req; 508 509 memcpy(req, config, sizeof(struct hpt_iop_request_set_config)); 510 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 511 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG); 512 req->header.size = 513 cpu_to_le32(sizeof(struct hpt_iop_request_set_config)); 514 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 515 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5); 516 req->header.context_hi32 = 0; 517 518 if (iop_send_sync_request_mv(hba, 0, 20000)) { 519 dprintk("Set config send cmd failed\n"); 520 return -1; 521 } 522 523 return 0; 524 } 525 526 static int iop_set_config_mvfrey(struct hptiop_hba *hba, 527 struct hpt_iop_request_set_config *config) 528 { 529 struct hpt_iop_request_set_config *req = 530 hba->u.mvfrey.internal_req.req_virt; 531 532 memcpy(req, config, sizeof(struct hpt_iop_request_set_config)); 533 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 534 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG); 535 req->header.size = 536 cpu_to_le32(sizeof(struct hpt_iop_request_set_config)); 537 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 538 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5); 539 req->header.context_hi32 = 0; 540 541 if (iop_send_sync_request_mvfrey(hba, 0, 20000)) { 542 dprintk("Set config send cmd failed\n"); 543 return -1; 544 } 545 546 return 0; 547 } 548 549 static void hptiop_enable_intr_itl(struct hptiop_hba *hba) 550 { 551 writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0), 552 &hba->u.itl.iop->outbound_intmask); 553 } 554 555 static void hptiop_enable_intr_mv(struct hptiop_hba *hba) 556 { 557 writel(MVIOP_MU_OUTBOUND_INT_POSTQUEUE | MVIOP_MU_OUTBOUND_INT_MSG, 558 &hba->u.mv.regs->outbound_intmask); 559 } 560 561 static void hptiop_enable_intr_mvfrey(struct hptiop_hba *hba) 562 { 563 writel(CPU_TO_F0_DRBL_MSG_BIT, &(hba->u.mvfrey.mu->f0_doorbell_enable)); 564 writel(0x1, &(hba->u.mvfrey.mu->isr_enable)); 565 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 566 } 567 568 static int hptiop_initialize_iop(struct hptiop_hba *hba) 569 { 570 /* enable interrupts */ 571 hba->ops->enable_intr(hba); 572 573 hba->initialized = 1; 574 575 /* start background tasks */ 576 if (iop_send_sync_msg(hba, 577 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { 578 printk(KERN_ERR "scsi%d: fail to start background task\n", 579 hba->host->host_no); 580 return -1; 581 } 582 return 0; 583 } 584 585 static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index) 586 { 587 u32 mem_base_phy, length; 588 void __iomem *mem_base_virt; 589 590 struct pci_dev *pcidev = hba->pcidev; 591 592 593 if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) { 594 printk(KERN_ERR "scsi%d: pci resource invalid\n", 595 hba->host->host_no); 596 return NULL; 597 } 598 599 mem_base_phy = pci_resource_start(pcidev, index); 600 length = pci_resource_len(pcidev, index); 601 mem_base_virt = ioremap(mem_base_phy, length); 602 603 if (!mem_base_virt) { 604 printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n", 605 hba->host->host_no); 606 return NULL; 607 } 608 return mem_base_virt; 609 } 610 611 static int hptiop_map_pci_bar_itl(struct hptiop_hba *hba) 612 { 613 struct pci_dev *pcidev = hba->pcidev; 614 hba->u.itl.iop = hptiop_map_pci_bar(hba, 0); 615 if (hba->u.itl.iop == NULL) 616 return -1; 617 if ((pcidev->device & 0xff00) == 0x4400) { 618 hba->u.itl.plx = hba->u.itl.iop; 619 hba->u.itl.iop = hptiop_map_pci_bar(hba, 2); 620 if (hba->u.itl.iop == NULL) { 621 iounmap(hba->u.itl.plx); 622 return -1; 623 } 624 } 625 return 0; 626 } 627 628 static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba) 629 { 630 if (hba->u.itl.plx) 631 iounmap(hba->u.itl.plx); 632 iounmap(hba->u.itl.iop); 633 } 634 635 static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba) 636 { 637 hba->u.mv.regs = hptiop_map_pci_bar(hba, 0); 638 if (hba->u.mv.regs == NULL) 639 return -1; 640 641 hba->u.mv.mu = hptiop_map_pci_bar(hba, 2); 642 if (hba->u.mv.mu == NULL) { 643 iounmap(hba->u.mv.regs); 644 return -1; 645 } 646 647 return 0; 648 } 649 650 static int hptiop_map_pci_bar_mvfrey(struct hptiop_hba *hba) 651 { 652 hba->u.mvfrey.config = hptiop_map_pci_bar(hba, 0); 653 if (hba->u.mvfrey.config == NULL) 654 return -1; 655 656 hba->u.mvfrey.mu = hptiop_map_pci_bar(hba, 2); 657 if (hba->u.mvfrey.mu == NULL) { 658 iounmap(hba->u.mvfrey.config); 659 return -1; 660 } 661 662 return 0; 663 } 664 665 static void hptiop_unmap_pci_bar_mv(struct hptiop_hba *hba) 666 { 667 iounmap(hba->u.mv.regs); 668 iounmap(hba->u.mv.mu); 669 } 670 671 static void hptiop_unmap_pci_bar_mvfrey(struct hptiop_hba *hba) 672 { 673 iounmap(hba->u.mvfrey.config); 674 iounmap(hba->u.mvfrey.mu); 675 } 676 677 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg) 678 { 679 dprintk("iop message 0x%x\n", msg); 680 681 if (msg == IOPMU_INBOUND_MSG0_NOP || 682 msg == IOPMU_INBOUND_MSG0_RESET_COMM) 683 hba->msg_done = 1; 684 685 if (!hba->initialized) 686 return; 687 688 if (msg == IOPMU_INBOUND_MSG0_RESET) { 689 atomic_set(&hba->resetting, 0); 690 wake_up(&hba->reset_wq); 691 } 692 else if (msg <= IOPMU_INBOUND_MSG0_MAX) 693 hba->msg_done = 1; 694 } 695 696 static struct hptiop_request *get_req(struct hptiop_hba *hba) 697 { 698 struct hptiop_request *ret; 699 700 dprintk("get_req : req=%p\n", hba->req_list); 701 702 ret = hba->req_list; 703 if (ret) 704 hba->req_list = ret->next; 705 706 return ret; 707 } 708 709 static void free_req(struct hptiop_hba *hba, struct hptiop_request *req) 710 { 711 dprintk("free_req(%d, %p)\n", req->index, req); 712 req->next = hba->req_list; 713 hba->req_list = req; 714 } 715 716 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag, 717 struct hpt_iop_request_scsi_command *req) 718 { 719 struct scsi_cmnd *scp; 720 721 dprintk("hptiop_finish_scsi_req: req=%p, type=%d, " 722 "result=%d, context=0x%x tag=%d\n", 723 req, req->header.type, req->header.result, 724 req->header.context, tag); 725 726 BUG_ON(!req->header.result); 727 BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND)); 728 729 scp = hba->reqs[tag].scp; 730 731 if (HPT_SCP(scp)->mapped) 732 scsi_dma_unmap(scp); 733 734 switch (le32_to_cpu(req->header.result)) { 735 case IOP_RESULT_SUCCESS: 736 scsi_set_resid(scp, 737 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); 738 scp->result = (DID_OK<<16); 739 break; 740 case IOP_RESULT_BAD_TARGET: 741 scp->result = (DID_BAD_TARGET<<16); 742 break; 743 case IOP_RESULT_BUSY: 744 scp->result = (DID_BUS_BUSY<<16); 745 break; 746 case IOP_RESULT_RESET: 747 scp->result = (DID_RESET<<16); 748 break; 749 case IOP_RESULT_FAIL: 750 scp->result = (DID_ERROR<<16); 751 break; 752 case IOP_RESULT_INVALID_REQUEST: 753 scp->result = (DID_ABORT<<16); 754 break; 755 case IOP_RESULT_CHECK_CONDITION: 756 scsi_set_resid(scp, 757 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); 758 scp->result = SAM_STAT_CHECK_CONDITION; 759 memcpy(scp->sense_buffer, &req->sg_list, SCSI_SENSE_BUFFERSIZE); 760 goto skip_resid; 761 762 default: 763 scp->result = DID_ABORT << 16; 764 break; 765 } 766 767 scsi_set_resid(scp, 768 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); 769 770 skip_resid: 771 dprintk("scsi_done(%p)\n", scp); 772 scsi_done(scp); 773 free_req(hba, &hba->reqs[tag]); 774 } 775 776 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 _tag) 777 { 778 struct hpt_iop_request_scsi_command *req; 779 u32 tag; 780 781 if (hba->iopintf_v2) { 782 tag = _tag & ~IOPMU_QUEUE_REQUEST_RESULT_BIT; 783 req = hba->reqs[tag].req_virt; 784 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT)) 785 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS); 786 } else { 787 tag = _tag; 788 req = hba->reqs[tag].req_virt; 789 } 790 791 hptiop_finish_scsi_req(hba, tag, req); 792 } 793 794 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag) 795 { 796 struct hpt_iop_request_header __iomem *req; 797 struct hpt_iop_request_ioctl_command __iomem *p; 798 struct hpt_ioctl_k *arg; 799 800 req = (struct hpt_iop_request_header __iomem *) 801 ((unsigned long)hba->u.itl.iop + tag); 802 dprintk("hptiop_iop_request_callback_itl: req=%p, type=%d, " 803 "result=%d, context=0x%x tag=%d\n", 804 req, readl(&req->type), readl(&req->result), 805 readl(&req->context), tag); 806 807 BUG_ON(!readl(&req->result)); 808 BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND); 809 810 p = (struct hpt_iop_request_ioctl_command __iomem *)req; 811 arg = (struct hpt_ioctl_k *)(unsigned long) 812 (readl(&req->context) | 813 ((u64)readl(&req->context_hi32)<<32)); 814 815 if (readl(&req->result) == IOP_RESULT_SUCCESS) { 816 arg->result = HPT_IOCTL_RESULT_OK; 817 818 if (arg->outbuf_size) 819 memcpy_fromio(arg->outbuf, 820 &p->buf[(readl(&p->inbuf_size) + 3)& ~3], 821 arg->outbuf_size); 822 823 if (arg->bytes_returned) 824 *arg->bytes_returned = arg->outbuf_size; 825 } 826 else 827 arg->result = HPT_IOCTL_RESULT_FAILED; 828 829 arg->done(arg); 830 writel(tag, &hba->u.itl.iop->outbound_queue); 831 } 832 833 static irqreturn_t hptiop_intr(int irq, void *dev_id) 834 { 835 struct hptiop_hba *hba = dev_id; 836 int handled; 837 unsigned long flags; 838 839 spin_lock_irqsave(hba->host->host_lock, flags); 840 handled = hba->ops->iop_intr(hba); 841 spin_unlock_irqrestore(hba->host->host_lock, flags); 842 843 return handled; 844 } 845 846 static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg) 847 { 848 struct Scsi_Host *host = scp->device->host; 849 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 850 struct scatterlist *sg; 851 int idx, nseg; 852 853 nseg = scsi_dma_map(scp); 854 BUG_ON(nseg < 0); 855 if (!nseg) 856 return 0; 857 858 HPT_SCP(scp)->sgcnt = nseg; 859 HPT_SCP(scp)->mapped = 1; 860 861 BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors); 862 863 scsi_for_each_sg(scp, sg, HPT_SCP(scp)->sgcnt, idx) { 864 psg[idx].pci_address = cpu_to_le64(sg_dma_address(sg)) | 865 hba->ops->host_phy_flag; 866 psg[idx].size = cpu_to_le32(sg_dma_len(sg)); 867 psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ? 868 cpu_to_le32(1) : 0; 869 } 870 return HPT_SCP(scp)->sgcnt; 871 } 872 873 static void hptiop_post_req_itl(struct hptiop_hba *hba, 874 struct hptiop_request *_req) 875 { 876 struct hpt_iop_request_header *reqhdr = _req->req_virt; 877 878 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | 879 (u32)_req->index); 880 reqhdr->context_hi32 = 0; 881 882 if (hba->iopintf_v2) { 883 u32 size, size_bits; 884 885 size = le32_to_cpu(reqhdr->size); 886 if (size < 256) 887 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT; 888 else if (size < 512) 889 size_bits = IOPMU_QUEUE_ADDR_HOST_BIT; 890 else 891 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT | 892 IOPMU_QUEUE_ADDR_HOST_BIT; 893 writel(_req->req_shifted_phy | size_bits, 894 &hba->u.itl.iop->inbound_queue); 895 } else 896 writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT, 897 &hba->u.itl.iop->inbound_queue); 898 } 899 900 static void hptiop_post_req_mv(struct hptiop_hba *hba, 901 struct hptiop_request *_req) 902 { 903 struct hpt_iop_request_header *reqhdr = _req->req_virt; 904 u32 size, size_bit; 905 906 reqhdr->context = cpu_to_le32(_req->index<<8 | 907 IOP_REQUEST_TYPE_SCSI_COMMAND<<5); 908 reqhdr->context_hi32 = 0; 909 size = le32_to_cpu(reqhdr->size); 910 911 if (size <= 256) 912 size_bit = 0; 913 else if (size <= 256*2) 914 size_bit = 1; 915 else if (size <= 256*3) 916 size_bit = 2; 917 else 918 size_bit = 3; 919 920 mv_inbound_write((_req->req_shifted_phy << 5) | 921 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bit, hba); 922 } 923 924 static void hptiop_post_req_mvfrey(struct hptiop_hba *hba, 925 struct hptiop_request *_req) 926 { 927 struct hpt_iop_request_header *reqhdr = _req->req_virt; 928 u32 index; 929 930 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT | 931 IOP_REQUEST_FLAG_ADDR_BITS | 932 ((_req->req_shifted_phy >> 11) & 0xffff0000)); 933 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | 934 (_req->index << 4) | reqhdr->type); 935 reqhdr->context_hi32 = cpu_to_le32((_req->req_shifted_phy << 5) & 936 0xffffffff); 937 938 hba->u.mvfrey.inlist_wptr++; 939 index = hba->u.mvfrey.inlist_wptr & 0x3fff; 940 941 if (index == hba->u.mvfrey.list_count) { 942 index = 0; 943 hba->u.mvfrey.inlist_wptr &= ~0x3fff; 944 hba->u.mvfrey.inlist_wptr ^= CL_POINTER_TOGGLE; 945 } 946 947 hba->u.mvfrey.inlist[index].addr = 948 (dma_addr_t)_req->req_shifted_phy << 5; 949 hba->u.mvfrey.inlist[index].intrfc_len = (reqhdr->size + 3) / 4; 950 writel(hba->u.mvfrey.inlist_wptr, 951 &(hba->u.mvfrey.mu->inbound_write_ptr)); 952 readl(&(hba->u.mvfrey.mu->inbound_write_ptr)); 953 } 954 955 static int hptiop_reset_comm_itl(struct hptiop_hba *hba) 956 { 957 return 0; 958 } 959 960 static int hptiop_reset_comm_mv(struct hptiop_hba *hba) 961 { 962 return 0; 963 } 964 965 static int hptiop_reset_comm_mvfrey(struct hptiop_hba *hba) 966 { 967 u32 list_count = hba->u.mvfrey.list_count; 968 969 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_RESET_COMM, 3000)) 970 return -1; 971 972 /* wait 100ms for MCU ready */ 973 msleep(100); 974 975 writel(cpu_to_le32(hba->u.mvfrey.inlist_phy & 0xffffffff), 976 &(hba->u.mvfrey.mu->inbound_base)); 977 writel(cpu_to_le32((hba->u.mvfrey.inlist_phy >> 16) >> 16), 978 &(hba->u.mvfrey.mu->inbound_base_high)); 979 980 writel(cpu_to_le32(hba->u.mvfrey.outlist_phy & 0xffffffff), 981 &(hba->u.mvfrey.mu->outbound_base)); 982 writel(cpu_to_le32((hba->u.mvfrey.outlist_phy >> 16) >> 16), 983 &(hba->u.mvfrey.mu->outbound_base_high)); 984 985 writel(cpu_to_le32(hba->u.mvfrey.outlist_cptr_phy & 0xffffffff), 986 &(hba->u.mvfrey.mu->outbound_shadow_base)); 987 writel(cpu_to_le32((hba->u.mvfrey.outlist_cptr_phy >> 16) >> 16), 988 &(hba->u.mvfrey.mu->outbound_shadow_base_high)); 989 990 hba->u.mvfrey.inlist_wptr = (list_count - 1) | CL_POINTER_TOGGLE; 991 *hba->u.mvfrey.outlist_cptr = (list_count - 1) | CL_POINTER_TOGGLE; 992 hba->u.mvfrey.outlist_rptr = list_count - 1; 993 return 0; 994 } 995 996 static int hptiop_queuecommand_lck(struct scsi_cmnd *scp) 997 { 998 struct Scsi_Host *host = scp->device->host; 999 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 1000 struct hpt_iop_request_scsi_command *req; 1001 int sg_count = 0; 1002 struct hptiop_request *_req; 1003 1004 _req = get_req(hba); 1005 if (_req == NULL) { 1006 dprintk("hptiop_queuecmd : no free req\n"); 1007 return SCSI_MLQUEUE_HOST_BUSY; 1008 } 1009 1010 _req->scp = scp; 1011 1012 dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%llu cdb=(%08x-%08x-%08x-%08x) " 1013 "req_index=%d, req=%p\n", 1014 scp, 1015 host->host_no, scp->device->channel, 1016 scp->device->id, scp->device->lun, 1017 cpu_to_be32(((u32 *)scp->cmnd)[0]), 1018 cpu_to_be32(((u32 *)scp->cmnd)[1]), 1019 cpu_to_be32(((u32 *)scp->cmnd)[2]), 1020 cpu_to_be32(((u32 *)scp->cmnd)[3]), 1021 _req->index, _req->req_virt); 1022 1023 scp->result = 0; 1024 1025 if (scp->device->channel || 1026 (scp->device->id > hba->max_devices) || 1027 ((scp->device->id == (hba->max_devices-1)) && scp->device->lun)) { 1028 scp->result = DID_BAD_TARGET << 16; 1029 free_req(hba, _req); 1030 goto cmd_done; 1031 } 1032 1033 req = _req->req_virt; 1034 1035 /* build S/G table */ 1036 sg_count = hptiop_buildsgl(scp, req->sg_list); 1037 if (!sg_count) 1038 HPT_SCP(scp)->mapped = 0; 1039 1040 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 1041 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND); 1042 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 1043 req->dataxfer_length = cpu_to_le32(scsi_bufflen(scp)); 1044 req->channel = scp->device->channel; 1045 req->target = scp->device->id; 1046 req->lun = scp->device->lun; 1047 req->header.size = cpu_to_le32( 1048 sizeof(struct hpt_iop_request_scsi_command) 1049 - sizeof(struct hpt_iopsg) 1050 + sg_count * sizeof(struct hpt_iopsg)); 1051 1052 memcpy(req->cdb, scp->cmnd, sizeof(req->cdb)); 1053 hba->ops->post_req(hba, _req); 1054 return 0; 1055 1056 cmd_done: 1057 dprintk("scsi_done(scp=%p)\n", scp); 1058 scsi_done(scp); 1059 return 0; 1060 } 1061 1062 static DEF_SCSI_QCMD(hptiop_queuecommand) 1063 1064 static const char *hptiop_info(struct Scsi_Host *host) 1065 { 1066 return driver_name_long; 1067 } 1068 1069 static int hptiop_reset_hba(struct hptiop_hba *hba) 1070 { 1071 if (atomic_xchg(&hba->resetting, 1) == 0) { 1072 atomic_inc(&hba->reset_count); 1073 hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET); 1074 } 1075 1076 wait_event_timeout(hba->reset_wq, 1077 atomic_read(&hba->resetting) == 0, 60 * HZ); 1078 1079 if (atomic_read(&hba->resetting)) { 1080 /* IOP is in unknown state, abort reset */ 1081 printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no); 1082 return -1; 1083 } 1084 1085 if (iop_send_sync_msg(hba, 1086 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { 1087 dprintk("scsi%d: fail to start background task\n", 1088 hba->host->host_no); 1089 } 1090 1091 return 0; 1092 } 1093 1094 static int hptiop_reset(struct scsi_cmnd *scp) 1095 { 1096 struct hptiop_hba * hba = (struct hptiop_hba *)scp->device->host->hostdata; 1097 1098 printk(KERN_WARNING "hptiop_reset(%d/%d/%d)\n", 1099 scp->device->host->host_no, -1, -1); 1100 1101 return hptiop_reset_hba(hba)? FAILED : SUCCESS; 1102 } 1103 1104 static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, 1105 int queue_depth) 1106 { 1107 struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata; 1108 1109 if (queue_depth > hba->max_requests) 1110 queue_depth = hba->max_requests; 1111 return scsi_change_queue_depth(sdev, queue_depth); 1112 } 1113 1114 static ssize_t hptiop_show_version(struct device *dev, 1115 struct device_attribute *attr, char *buf) 1116 { 1117 return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver); 1118 } 1119 1120 static ssize_t hptiop_show_fw_version(struct device *dev, 1121 struct device_attribute *attr, char *buf) 1122 { 1123 struct Scsi_Host *host = class_to_shost(dev); 1124 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 1125 1126 return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n", 1127 hba->firmware_version >> 24, 1128 (hba->firmware_version >> 16) & 0xff, 1129 (hba->firmware_version >> 8) & 0xff, 1130 hba->firmware_version & 0xff); 1131 } 1132 1133 static struct device_attribute hptiop_attr_version = { 1134 .attr = { 1135 .name = "driver-version", 1136 .mode = S_IRUGO, 1137 }, 1138 .show = hptiop_show_version, 1139 }; 1140 1141 static struct device_attribute hptiop_attr_fw_version = { 1142 .attr = { 1143 .name = "firmware-version", 1144 .mode = S_IRUGO, 1145 }, 1146 .show = hptiop_show_fw_version, 1147 }; 1148 1149 static struct attribute *hptiop_host_attrs[] = { 1150 &hptiop_attr_version.attr, 1151 &hptiop_attr_fw_version.attr, 1152 NULL 1153 }; 1154 1155 ATTRIBUTE_GROUPS(hptiop_host); 1156 1157 static int hptiop_slave_config(struct scsi_device *sdev) 1158 { 1159 if (sdev->type == TYPE_TAPE) 1160 blk_queue_max_hw_sectors(sdev->request_queue, 8192); 1161 1162 return 0; 1163 } 1164 1165 static struct scsi_host_template driver_template = { 1166 .module = THIS_MODULE, 1167 .name = driver_name, 1168 .queuecommand = hptiop_queuecommand, 1169 .eh_host_reset_handler = hptiop_reset, 1170 .info = hptiop_info, 1171 .emulated = 0, 1172 .proc_name = driver_name, 1173 .shost_groups = hptiop_host_groups, 1174 .slave_configure = hptiop_slave_config, 1175 .this_id = -1, 1176 .change_queue_depth = hptiop_adjust_disk_queue_depth, 1177 }; 1178 1179 static int hptiop_internal_memalloc_itl(struct hptiop_hba *hba) 1180 { 1181 return 0; 1182 } 1183 1184 static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba) 1185 { 1186 hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev, 1187 0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL); 1188 if (hba->u.mv.internal_req) 1189 return 0; 1190 else 1191 return -1; 1192 } 1193 1194 static int hptiop_internal_memalloc_mvfrey(struct hptiop_hba *hba) 1195 { 1196 u32 list_count = readl(&hba->u.mvfrey.mu->inbound_conf_ctl); 1197 char *p; 1198 dma_addr_t phy; 1199 1200 BUG_ON(hba->max_request_size == 0); 1201 1202 if (list_count == 0) { 1203 BUG_ON(1); 1204 return -1; 1205 } 1206 1207 list_count >>= 16; 1208 1209 hba->u.mvfrey.list_count = list_count; 1210 hba->u.mvfrey.internal_mem_size = 0x800 + 1211 list_count * sizeof(struct mvfrey_inlist_entry) + 1212 list_count * sizeof(struct mvfrey_outlist_entry) + 1213 sizeof(int); 1214 1215 p = dma_alloc_coherent(&hba->pcidev->dev, 1216 hba->u.mvfrey.internal_mem_size, &phy, GFP_KERNEL); 1217 if (!p) 1218 return -1; 1219 1220 hba->u.mvfrey.internal_req.req_virt = p; 1221 hba->u.mvfrey.internal_req.req_shifted_phy = phy >> 5; 1222 hba->u.mvfrey.internal_req.scp = NULL; 1223 hba->u.mvfrey.internal_req.next = NULL; 1224 1225 p += 0x800; 1226 phy += 0x800; 1227 1228 hba->u.mvfrey.inlist = (struct mvfrey_inlist_entry *)p; 1229 hba->u.mvfrey.inlist_phy = phy; 1230 1231 p += list_count * sizeof(struct mvfrey_inlist_entry); 1232 phy += list_count * sizeof(struct mvfrey_inlist_entry); 1233 1234 hba->u.mvfrey.outlist = (struct mvfrey_outlist_entry *)p; 1235 hba->u.mvfrey.outlist_phy = phy; 1236 1237 p += list_count * sizeof(struct mvfrey_outlist_entry); 1238 phy += list_count * sizeof(struct mvfrey_outlist_entry); 1239 1240 hba->u.mvfrey.outlist_cptr = (__le32 *)p; 1241 hba->u.mvfrey.outlist_cptr_phy = phy; 1242 1243 return 0; 1244 } 1245 1246 static int hptiop_internal_memfree_itl(struct hptiop_hba *hba) 1247 { 1248 return 0; 1249 } 1250 1251 static int hptiop_internal_memfree_mv(struct hptiop_hba *hba) 1252 { 1253 if (hba->u.mv.internal_req) { 1254 dma_free_coherent(&hba->pcidev->dev, 0x800, 1255 hba->u.mv.internal_req, hba->u.mv.internal_req_phy); 1256 return 0; 1257 } else 1258 return -1; 1259 } 1260 1261 static int hptiop_internal_memfree_mvfrey(struct hptiop_hba *hba) 1262 { 1263 if (hba->u.mvfrey.internal_req.req_virt) { 1264 dma_free_coherent(&hba->pcidev->dev, 1265 hba->u.mvfrey.internal_mem_size, 1266 hba->u.mvfrey.internal_req.req_virt, 1267 (dma_addr_t) 1268 hba->u.mvfrey.internal_req.req_shifted_phy << 5); 1269 return 0; 1270 } else 1271 return -1; 1272 } 1273 1274 static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id) 1275 { 1276 struct Scsi_Host *host = NULL; 1277 struct hptiop_hba *hba; 1278 struct hptiop_adapter_ops *iop_ops; 1279 struct hpt_iop_request_get_config iop_config; 1280 struct hpt_iop_request_set_config set_config; 1281 dma_addr_t start_phy; 1282 void *start_virt; 1283 u32 offset, i, req_size; 1284 int rc; 1285 1286 dprintk("hptiop_probe(%p)\n", pcidev); 1287 1288 if (pci_enable_device(pcidev)) { 1289 printk(KERN_ERR "hptiop: fail to enable pci device\n"); 1290 return -ENODEV; 1291 } 1292 1293 printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n", 1294 pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7, 1295 pcidev->irq); 1296 1297 pci_set_master(pcidev); 1298 1299 /* Enable 64bit DMA if possible */ 1300 iop_ops = (struct hptiop_adapter_ops *)id->driver_data; 1301 rc = dma_set_mask(&pcidev->dev, 1302 DMA_BIT_MASK(iop_ops->hw_dma_bit_mask)); 1303 if (rc) 1304 rc = dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32)); 1305 1306 if (rc) { 1307 printk(KERN_ERR "hptiop: fail to set dma_mask\n"); 1308 goto disable_pci_device; 1309 } 1310 1311 if (pci_request_regions(pcidev, driver_name)) { 1312 printk(KERN_ERR "hptiop: pci_request_regions failed\n"); 1313 goto disable_pci_device; 1314 } 1315 1316 host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba)); 1317 if (!host) { 1318 printk(KERN_ERR "hptiop: fail to alloc scsi host\n"); 1319 goto free_pci_regions; 1320 } 1321 1322 hba = (struct hptiop_hba *)host->hostdata; 1323 memset(hba, 0, sizeof(struct hptiop_hba)); 1324 1325 hba->ops = iop_ops; 1326 hba->pcidev = pcidev; 1327 hba->host = host; 1328 hba->initialized = 0; 1329 hba->iopintf_v2 = 0; 1330 1331 atomic_set(&hba->resetting, 0); 1332 atomic_set(&hba->reset_count, 0); 1333 1334 init_waitqueue_head(&hba->reset_wq); 1335 init_waitqueue_head(&hba->ioctl_wq); 1336 1337 host->max_lun = 128; 1338 host->max_channel = 0; 1339 host->io_port = 0; 1340 host->n_io_port = 0; 1341 host->irq = pcidev->irq; 1342 1343 if (hba->ops->map_pci_bar(hba)) 1344 goto free_scsi_host; 1345 1346 if (hba->ops->iop_wait_ready(hba, 20000)) { 1347 printk(KERN_ERR "scsi%d: firmware not ready\n", 1348 hba->host->host_no); 1349 goto unmap_pci_bar; 1350 } 1351 1352 if (hba->ops->family == MV_BASED_IOP) { 1353 if (hba->ops->internal_memalloc(hba)) { 1354 printk(KERN_ERR "scsi%d: internal_memalloc failed\n", 1355 hba->host->host_no); 1356 goto unmap_pci_bar; 1357 } 1358 } 1359 1360 if (hba->ops->get_config(hba, &iop_config)) { 1361 printk(KERN_ERR "scsi%d: get config failed\n", 1362 hba->host->host_no); 1363 goto unmap_pci_bar; 1364 } 1365 1366 hba->max_requests = min(le32_to_cpu(iop_config.max_requests), 1367 HPTIOP_MAX_REQUESTS); 1368 hba->max_devices = le32_to_cpu(iop_config.max_devices); 1369 hba->max_request_size = le32_to_cpu(iop_config.request_size); 1370 hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count); 1371 hba->firmware_version = le32_to_cpu(iop_config.firmware_version); 1372 hba->interface_version = le32_to_cpu(iop_config.interface_version); 1373 hba->sdram_size = le32_to_cpu(iop_config.sdram_size); 1374 1375 if (hba->ops->family == MVFREY_BASED_IOP) { 1376 if (hba->ops->internal_memalloc(hba)) { 1377 printk(KERN_ERR "scsi%d: internal_memalloc failed\n", 1378 hba->host->host_no); 1379 goto unmap_pci_bar; 1380 } 1381 if (hba->ops->reset_comm(hba)) { 1382 printk(KERN_ERR "scsi%d: reset comm failed\n", 1383 hba->host->host_no); 1384 goto unmap_pci_bar; 1385 } 1386 } 1387 1388 if (hba->firmware_version > 0x01020000 || 1389 hba->interface_version > 0x01020000) 1390 hba->iopintf_v2 = 1; 1391 1392 host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9; 1393 host->max_id = le32_to_cpu(iop_config.max_devices); 1394 host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count); 1395 host->can_queue = le32_to_cpu(iop_config.max_requests); 1396 host->cmd_per_lun = le32_to_cpu(iop_config.max_requests); 1397 host->max_cmd_len = 16; 1398 1399 req_size = sizeof(struct hpt_iop_request_scsi_command) 1400 + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1); 1401 if ((req_size & 0x1f) != 0) 1402 req_size = (req_size + 0x1f) & ~0x1f; 1403 1404 memset(&set_config, 0, sizeof(struct hpt_iop_request_set_config)); 1405 set_config.iop_id = cpu_to_le32(host->host_no); 1406 set_config.vbus_id = cpu_to_le16(host->host_no); 1407 set_config.max_host_request_size = cpu_to_le16(req_size); 1408 1409 if (hba->ops->set_config(hba, &set_config)) { 1410 printk(KERN_ERR "scsi%d: set config failed\n", 1411 hba->host->host_no); 1412 goto unmap_pci_bar; 1413 } 1414 1415 pci_set_drvdata(pcidev, host); 1416 1417 if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED, 1418 driver_name, hba)) { 1419 printk(KERN_ERR "scsi%d: request irq %d failed\n", 1420 hba->host->host_no, pcidev->irq); 1421 goto unmap_pci_bar; 1422 } 1423 1424 /* Allocate request mem */ 1425 1426 dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests); 1427 1428 hba->req_size = req_size; 1429 hba->req_list = NULL; 1430 1431 for (i = 0; i < hba->max_requests; i++) { 1432 start_virt = dma_alloc_coherent(&pcidev->dev, 1433 hba->req_size + 0x20, 1434 &start_phy, GFP_KERNEL); 1435 1436 if (!start_virt) { 1437 printk(KERN_ERR "scsi%d: fail to alloc request mem\n", 1438 hba->host->host_no); 1439 goto free_request_mem; 1440 } 1441 1442 hba->dma_coherent[i] = start_virt; 1443 hba->dma_coherent_handle[i] = start_phy; 1444 1445 if ((start_phy & 0x1f) != 0) { 1446 offset = ((start_phy + 0x1f) & ~0x1f) - start_phy; 1447 start_phy += offset; 1448 start_virt += offset; 1449 } 1450 1451 hba->reqs[i].next = NULL; 1452 hba->reqs[i].req_virt = start_virt; 1453 hba->reqs[i].req_shifted_phy = start_phy >> 5; 1454 hba->reqs[i].index = i; 1455 free_req(hba, &hba->reqs[i]); 1456 } 1457 1458 /* Enable Interrupt and start background task */ 1459 if (hptiop_initialize_iop(hba)) 1460 goto free_request_mem; 1461 1462 if (scsi_add_host(host, &pcidev->dev)) { 1463 printk(KERN_ERR "scsi%d: scsi_add_host failed\n", 1464 hba->host->host_no); 1465 goto free_request_mem; 1466 } 1467 1468 scsi_scan_host(host); 1469 1470 dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no); 1471 return 0; 1472 1473 free_request_mem: 1474 for (i = 0; i < hba->max_requests; i++) { 1475 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i]) 1476 dma_free_coherent(&hba->pcidev->dev, 1477 hba->req_size + 0x20, 1478 hba->dma_coherent[i], 1479 hba->dma_coherent_handle[i]); 1480 else 1481 break; 1482 } 1483 1484 free_irq(hba->pcidev->irq, hba); 1485 1486 unmap_pci_bar: 1487 hba->ops->internal_memfree(hba); 1488 1489 hba->ops->unmap_pci_bar(hba); 1490 1491 free_scsi_host: 1492 scsi_host_put(host); 1493 1494 free_pci_regions: 1495 pci_release_regions(pcidev); 1496 1497 disable_pci_device: 1498 pci_disable_device(pcidev); 1499 1500 dprintk("scsi%d: hptiop_probe fail\n", host ? host->host_no : 0); 1501 return -ENODEV; 1502 } 1503 1504 static void hptiop_shutdown(struct pci_dev *pcidev) 1505 { 1506 struct Scsi_Host *host = pci_get_drvdata(pcidev); 1507 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 1508 1509 dprintk("hptiop_shutdown(%p)\n", hba); 1510 1511 /* stop the iop */ 1512 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000)) 1513 printk(KERN_ERR "scsi%d: shutdown the iop timeout\n", 1514 hba->host->host_no); 1515 1516 /* disable all outbound interrupts */ 1517 hba->ops->disable_intr(hba); 1518 } 1519 1520 static void hptiop_disable_intr_itl(struct hptiop_hba *hba) 1521 { 1522 u32 int_mask; 1523 1524 int_mask = readl(&hba->u.itl.iop->outbound_intmask); 1525 writel(int_mask | 1526 IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE, 1527 &hba->u.itl.iop->outbound_intmask); 1528 readl(&hba->u.itl.iop->outbound_intmask); 1529 } 1530 1531 static void hptiop_disable_intr_mv(struct hptiop_hba *hba) 1532 { 1533 writel(0, &hba->u.mv.regs->outbound_intmask); 1534 readl(&hba->u.mv.regs->outbound_intmask); 1535 } 1536 1537 static void hptiop_disable_intr_mvfrey(struct hptiop_hba *hba) 1538 { 1539 writel(0, &(hba->u.mvfrey.mu->f0_doorbell_enable)); 1540 readl(&(hba->u.mvfrey.mu->f0_doorbell_enable)); 1541 writel(0, &(hba->u.mvfrey.mu->isr_enable)); 1542 readl(&(hba->u.mvfrey.mu->isr_enable)); 1543 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 1544 readl(&(hba->u.mvfrey.mu->pcie_f0_int_enable)); 1545 } 1546 1547 static void hptiop_remove(struct pci_dev *pcidev) 1548 { 1549 struct Scsi_Host *host = pci_get_drvdata(pcidev); 1550 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 1551 u32 i; 1552 1553 dprintk("scsi%d: hptiop_remove\n", hba->host->host_no); 1554 1555 scsi_remove_host(host); 1556 1557 hptiop_shutdown(pcidev); 1558 1559 free_irq(hba->pcidev->irq, hba); 1560 1561 for (i = 0; i < hba->max_requests; i++) { 1562 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i]) 1563 dma_free_coherent(&hba->pcidev->dev, 1564 hba->req_size + 0x20, 1565 hba->dma_coherent[i], 1566 hba->dma_coherent_handle[i]); 1567 else 1568 break; 1569 } 1570 1571 hba->ops->internal_memfree(hba); 1572 1573 hba->ops->unmap_pci_bar(hba); 1574 1575 pci_release_regions(hba->pcidev); 1576 pci_set_drvdata(hba->pcidev, NULL); 1577 pci_disable_device(hba->pcidev); 1578 1579 scsi_host_put(host); 1580 } 1581 1582 static struct hptiop_adapter_ops hptiop_itl_ops = { 1583 .family = INTEL_BASED_IOP, 1584 .iop_wait_ready = iop_wait_ready_itl, 1585 .internal_memalloc = hptiop_internal_memalloc_itl, 1586 .internal_memfree = hptiop_internal_memfree_itl, 1587 .map_pci_bar = hptiop_map_pci_bar_itl, 1588 .unmap_pci_bar = hptiop_unmap_pci_bar_itl, 1589 .enable_intr = hptiop_enable_intr_itl, 1590 .disable_intr = hptiop_disable_intr_itl, 1591 .get_config = iop_get_config_itl, 1592 .set_config = iop_set_config_itl, 1593 .iop_intr = iop_intr_itl, 1594 .post_msg = hptiop_post_msg_itl, 1595 .post_req = hptiop_post_req_itl, 1596 .hw_dma_bit_mask = 64, 1597 .reset_comm = hptiop_reset_comm_itl, 1598 .host_phy_flag = cpu_to_le64(0), 1599 }; 1600 1601 static struct hptiop_adapter_ops hptiop_mv_ops = { 1602 .family = MV_BASED_IOP, 1603 .iop_wait_ready = iop_wait_ready_mv, 1604 .internal_memalloc = hptiop_internal_memalloc_mv, 1605 .internal_memfree = hptiop_internal_memfree_mv, 1606 .map_pci_bar = hptiop_map_pci_bar_mv, 1607 .unmap_pci_bar = hptiop_unmap_pci_bar_mv, 1608 .enable_intr = hptiop_enable_intr_mv, 1609 .disable_intr = hptiop_disable_intr_mv, 1610 .get_config = iop_get_config_mv, 1611 .set_config = iop_set_config_mv, 1612 .iop_intr = iop_intr_mv, 1613 .post_msg = hptiop_post_msg_mv, 1614 .post_req = hptiop_post_req_mv, 1615 .hw_dma_bit_mask = 33, 1616 .reset_comm = hptiop_reset_comm_mv, 1617 .host_phy_flag = cpu_to_le64(0), 1618 }; 1619 1620 static struct hptiop_adapter_ops hptiop_mvfrey_ops = { 1621 .family = MVFREY_BASED_IOP, 1622 .iop_wait_ready = iop_wait_ready_mvfrey, 1623 .internal_memalloc = hptiop_internal_memalloc_mvfrey, 1624 .internal_memfree = hptiop_internal_memfree_mvfrey, 1625 .map_pci_bar = hptiop_map_pci_bar_mvfrey, 1626 .unmap_pci_bar = hptiop_unmap_pci_bar_mvfrey, 1627 .enable_intr = hptiop_enable_intr_mvfrey, 1628 .disable_intr = hptiop_disable_intr_mvfrey, 1629 .get_config = iop_get_config_mvfrey, 1630 .set_config = iop_set_config_mvfrey, 1631 .iop_intr = iop_intr_mvfrey, 1632 .post_msg = hptiop_post_msg_mvfrey, 1633 .post_req = hptiop_post_req_mvfrey, 1634 .hw_dma_bit_mask = 64, 1635 .reset_comm = hptiop_reset_comm_mvfrey, 1636 .host_phy_flag = cpu_to_le64(1), 1637 }; 1638 1639 static struct pci_device_id hptiop_id_table[] = { 1640 { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops }, 1641 { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops }, 1642 { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops }, 1643 { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops }, 1644 { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops }, 1645 { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops }, 1646 { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops }, 1647 { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops }, 1648 { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops }, 1649 { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops }, 1650 { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops }, 1651 { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops }, 1652 { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops }, 1653 { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops }, 1654 { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops }, 1655 { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops }, 1656 { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops }, 1657 { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops }, 1658 { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops }, 1659 { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops }, 1660 { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops }, 1661 { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops }, 1662 { PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1663 { PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1664 { PCI_VDEVICE(TTI, 0x3610), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1665 { PCI_VDEVICE(TTI, 0x3611), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1666 { PCI_VDEVICE(TTI, 0x3620), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1667 { PCI_VDEVICE(TTI, 0x3622), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1668 { PCI_VDEVICE(TTI, 0x3640), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1669 { PCI_VDEVICE(TTI, 0x3660), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1670 { PCI_VDEVICE(TTI, 0x3680), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1671 { PCI_VDEVICE(TTI, 0x3690), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1672 {}, 1673 }; 1674 1675 MODULE_DEVICE_TABLE(pci, hptiop_id_table); 1676 1677 static struct pci_driver hptiop_pci_driver = { 1678 .name = driver_name, 1679 .id_table = hptiop_id_table, 1680 .probe = hptiop_probe, 1681 .remove = hptiop_remove, 1682 .shutdown = hptiop_shutdown, 1683 }; 1684 1685 static int __init hptiop_module_init(void) 1686 { 1687 printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver); 1688 return pci_register_driver(&hptiop_pci_driver); 1689 } 1690 1691 static void __exit hptiop_module_exit(void) 1692 { 1693 pci_unregister_driver(&hptiop_pci_driver); 1694 } 1695 1696 1697 module_init(hptiop_module_init); 1698 module_exit(hptiop_module_exit); 1699 1700 MODULE_LICENSE("GPL"); 1701 1702