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