1 /* 2 * HighPoint RR3xxx/4xxx controller driver for Linux 3 * Copyright (C) 2006-2012 HighPoint Technologies, Inc. All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; version 2 of the License. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * Please report bugs/comments/suggestions to linux@highpoint-tech.com 15 * 16 * For more information, visit http://www.highpoint-tech.com 17 */ 18 #include <linux/module.h> 19 #include <linux/types.h> 20 #include <linux/string.h> 21 #include <linux/kernel.h> 22 #include <linux/pci.h> 23 #include <linux/interrupt.h> 24 #include <linux/errno.h> 25 #include <linux/delay.h> 26 #include <linux/timer.h> 27 #include <linux/spinlock.h> 28 #include <linux/gfp.h> 29 #include <asm/uaccess.h> 30 #include <asm/io.h> 31 #include <asm/div64.h> 32 #include <scsi/scsi_cmnd.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi.h> 35 #include <scsi/scsi_tcq.h> 36 #include <scsi/scsi_host.h> 37 38 #include "hptiop.h" 39 40 MODULE_AUTHOR("HighPoint Technologies, Inc."); 41 MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver"); 42 43 static char driver_name[] = "hptiop"; 44 static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver"; 45 static const char driver_ver[] = "v1.8"; 46 47 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec); 48 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag, 49 struct hpt_iop_request_scsi_command *req); 50 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag); 51 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag); 52 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg); 53 54 static int iop_wait_ready_itl(struct hptiop_hba *hba, u32 millisec) 55 { 56 u32 req = 0; 57 int i; 58 59 for (i = 0; i < millisec; i++) { 60 req = readl(&hba->u.itl.iop->inbound_queue); 61 if (req != IOPMU_QUEUE_EMPTY) 62 break; 63 msleep(1); 64 } 65 66 if (req != IOPMU_QUEUE_EMPTY) { 67 writel(req, &hba->u.itl.iop->outbound_queue); 68 readl(&hba->u.itl.iop->outbound_intstatus); 69 return 0; 70 } 71 72 return -1; 73 } 74 75 static int iop_wait_ready_mv(struct hptiop_hba *hba, u32 millisec) 76 { 77 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec); 78 } 79 80 static int iop_wait_ready_mvfrey(struct hptiop_hba *hba, u32 millisec) 81 { 82 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec); 83 } 84 85 static void hptiop_request_callback_itl(struct hptiop_hba *hba, u32 tag) 86 { 87 if (tag & IOPMU_QUEUE_ADDR_HOST_BIT) 88 hptiop_host_request_callback_itl(hba, 89 tag & ~IOPMU_QUEUE_ADDR_HOST_BIT); 90 else 91 hptiop_iop_request_callback_itl(hba, tag); 92 } 93 94 static void hptiop_drain_outbound_queue_itl(struct hptiop_hba *hba) 95 { 96 u32 req; 97 98 while ((req = readl(&hba->u.itl.iop->outbound_queue)) != 99 IOPMU_QUEUE_EMPTY) { 100 101 if (req & IOPMU_QUEUE_MASK_HOST_BITS) 102 hptiop_request_callback_itl(hba, req); 103 else { 104 struct hpt_iop_request_header __iomem * p; 105 106 p = (struct hpt_iop_request_header __iomem *) 107 ((char __iomem *)hba->u.itl.iop + req); 108 109 if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) { 110 if (readl(&p->context)) 111 hptiop_request_callback_itl(hba, req); 112 else 113 writel(1, &p->context); 114 } 115 else 116 hptiop_request_callback_itl(hba, req); 117 } 118 } 119 } 120 121 static int iop_intr_itl(struct hptiop_hba *hba) 122 { 123 struct hpt_iopmu_itl __iomem *iop = hba->u.itl.iop; 124 void __iomem *plx = hba->u.itl.plx; 125 u32 status; 126 int ret = 0; 127 128 if (plx && readl(plx + 0x11C5C) & 0xf) 129 writel(1, plx + 0x11C60); 130 131 status = readl(&iop->outbound_intstatus); 132 133 if (status & IOPMU_OUTBOUND_INT_MSG0) { 134 u32 msg = readl(&iop->outbound_msgaddr0); 135 136 dprintk("received outbound msg %x\n", msg); 137 writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus); 138 hptiop_message_callback(hba, msg); 139 ret = 1; 140 } 141 142 if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) { 143 hptiop_drain_outbound_queue_itl(hba); 144 ret = 1; 145 } 146 147 return ret; 148 } 149 150 static u64 mv_outbound_read(struct hpt_iopmu_mv __iomem *mu) 151 { 152 u32 outbound_tail = readl(&mu->outbound_tail); 153 u32 outbound_head = readl(&mu->outbound_head); 154 155 if (outbound_tail != outbound_head) { 156 u64 p; 157 158 memcpy_fromio(&p, &mu->outbound_q[mu->outbound_tail], 8); 159 outbound_tail++; 160 161 if (outbound_tail == MVIOP_QUEUE_LEN) 162 outbound_tail = 0; 163 writel(outbound_tail, &mu->outbound_tail); 164 return p; 165 } else 166 return 0; 167 } 168 169 static void mv_inbound_write(u64 p, struct hptiop_hba *hba) 170 { 171 u32 inbound_head = readl(&hba->u.mv.mu->inbound_head); 172 u32 head = inbound_head + 1; 173 174 if (head == MVIOP_QUEUE_LEN) 175 head = 0; 176 177 memcpy_toio(&hba->u.mv.mu->inbound_q[inbound_head], &p, 8); 178 writel(head, &hba->u.mv.mu->inbound_head); 179 writel(MVIOP_MU_INBOUND_INT_POSTQUEUE, 180 &hba->u.mv.regs->inbound_doorbell); 181 } 182 183 static void hptiop_request_callback_mv(struct hptiop_hba *hba, u64 tag) 184 { 185 u32 req_type = (tag >> 5) & 0x7; 186 struct hpt_iop_request_scsi_command *req; 187 188 dprintk("hptiop_request_callback_mv: tag=%llx\n", tag); 189 190 BUG_ON((tag & MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT) == 0); 191 192 switch (req_type) { 193 case IOP_REQUEST_TYPE_GET_CONFIG: 194 case IOP_REQUEST_TYPE_SET_CONFIG: 195 hba->msg_done = 1; 196 break; 197 198 case IOP_REQUEST_TYPE_SCSI_COMMAND: 199 req = hba->reqs[tag >> 8].req_virt; 200 if (likely(tag & MVIOP_MU_QUEUE_REQUEST_RESULT_BIT)) 201 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS); 202 203 hptiop_finish_scsi_req(hba, tag>>8, req); 204 break; 205 206 default: 207 break; 208 } 209 } 210 211 static int iop_intr_mv(struct hptiop_hba *hba) 212 { 213 u32 status; 214 int ret = 0; 215 216 status = readl(&hba->u.mv.regs->outbound_doorbell); 217 writel(~status, &hba->u.mv.regs->outbound_doorbell); 218 219 if (status & MVIOP_MU_OUTBOUND_INT_MSG) { 220 u32 msg; 221 msg = readl(&hba->u.mv.mu->outbound_msg); 222 dprintk("received outbound msg %x\n", msg); 223 hptiop_message_callback(hba, msg); 224 ret = 1; 225 } 226 227 if (status & MVIOP_MU_OUTBOUND_INT_POSTQUEUE) { 228 u64 tag; 229 230 while ((tag = mv_outbound_read(hba->u.mv.mu))) 231 hptiop_request_callback_mv(hba, tag); 232 ret = 1; 233 } 234 235 return ret; 236 } 237 238 static void hptiop_request_callback_mvfrey(struct hptiop_hba *hba, u32 _tag) 239 { 240 u32 req_type = _tag & 0xf; 241 struct hpt_iop_request_scsi_command *req; 242 243 switch (req_type) { 244 case IOP_REQUEST_TYPE_GET_CONFIG: 245 case IOP_REQUEST_TYPE_SET_CONFIG: 246 hba->msg_done = 1; 247 break; 248 249 case IOP_REQUEST_TYPE_SCSI_COMMAND: 250 req = hba->reqs[(_tag >> 4) & 0xff].req_virt; 251 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT)) 252 req->header.result = IOP_RESULT_SUCCESS; 253 hptiop_finish_scsi_req(hba, (_tag >> 4) & 0xff, req); 254 break; 255 256 default: 257 break; 258 } 259 } 260 261 static int iop_intr_mvfrey(struct hptiop_hba *hba) 262 { 263 u32 _tag, status, cptr, cur_rptr; 264 int ret = 0; 265 266 if (hba->initialized) 267 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 268 269 status = readl(&(hba->u.mvfrey.mu->f0_doorbell)); 270 if (status) { 271 writel(status, &(hba->u.mvfrey.mu->f0_doorbell)); 272 if (status & CPU_TO_F0_DRBL_MSG_BIT) { 273 u32 msg = readl(&(hba->u.mvfrey.mu->cpu_to_f0_msg_a)); 274 dprintk("received outbound msg %x\n", msg); 275 hptiop_message_callback(hba, msg); 276 } 277 ret = 1; 278 } 279 280 status = readl(&(hba->u.mvfrey.mu->isr_cause)); 281 if (status) { 282 writel(status, &(hba->u.mvfrey.mu->isr_cause)); 283 do { 284 cptr = *hba->u.mvfrey.outlist_cptr & 0xff; 285 cur_rptr = hba->u.mvfrey.outlist_rptr; 286 while (cur_rptr != cptr) { 287 cur_rptr++; 288 if (cur_rptr == hba->u.mvfrey.list_count) 289 cur_rptr = 0; 290 291 _tag = hba->u.mvfrey.outlist[cur_rptr].val; 292 BUG_ON(!(_tag & IOPMU_QUEUE_MASK_HOST_BITS)); 293 hptiop_request_callback_mvfrey(hba, _tag); 294 ret = 1; 295 } 296 hba->u.mvfrey.outlist_rptr = cur_rptr; 297 } while (cptr != (*hba->u.mvfrey.outlist_cptr & 0xff)); 298 } 299 300 if (hba->initialized) 301 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 302 303 return ret; 304 } 305 306 static int iop_send_sync_request_itl(struct hptiop_hba *hba, 307 void __iomem *_req, u32 millisec) 308 { 309 struct hpt_iop_request_header __iomem *req = _req; 310 u32 i; 311 312 writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, &req->flags); 313 writel(0, &req->context); 314 writel((unsigned long)req - (unsigned long)hba->u.itl.iop, 315 &hba->u.itl.iop->inbound_queue); 316 readl(&hba->u.itl.iop->outbound_intstatus); 317 318 for (i = 0; i < millisec; i++) { 319 iop_intr_itl(hba); 320 if (readl(&req->context)) 321 return 0; 322 msleep(1); 323 } 324 325 return -1; 326 } 327 328 static int iop_send_sync_request_mv(struct hptiop_hba *hba, 329 u32 size_bits, u32 millisec) 330 { 331 struct hpt_iop_request_header *reqhdr = hba->u.mv.internal_req; 332 u32 i; 333 334 hba->msg_done = 0; 335 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST); 336 mv_inbound_write(hba->u.mv.internal_req_phy | 337 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bits, hba); 338 339 for (i = 0; i < millisec; i++) { 340 iop_intr_mv(hba); 341 if (hba->msg_done) 342 return 0; 343 msleep(1); 344 } 345 return -1; 346 } 347 348 static int iop_send_sync_request_mvfrey(struct hptiop_hba *hba, 349 u32 size_bits, u32 millisec) 350 { 351 struct hpt_iop_request_header *reqhdr = 352 hba->u.mvfrey.internal_req.req_virt; 353 u32 i; 354 355 hba->msg_done = 0; 356 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST); 357 hba->ops->post_req(hba, &(hba->u.mvfrey.internal_req)); 358 359 for (i = 0; i < millisec; i++) { 360 iop_intr_mvfrey(hba); 361 if (hba->msg_done) 362 break; 363 msleep(1); 364 } 365 return hba->msg_done ? 0 : -1; 366 } 367 368 static void hptiop_post_msg_itl(struct hptiop_hba *hba, u32 msg) 369 { 370 writel(msg, &hba->u.itl.iop->inbound_msgaddr0); 371 readl(&hba->u.itl.iop->outbound_intstatus); 372 } 373 374 static void hptiop_post_msg_mv(struct hptiop_hba *hba, u32 msg) 375 { 376 writel(msg, &hba->u.mv.mu->inbound_msg); 377 writel(MVIOP_MU_INBOUND_INT_MSG, &hba->u.mv.regs->inbound_doorbell); 378 readl(&hba->u.mv.regs->inbound_doorbell); 379 } 380 381 static void hptiop_post_msg_mvfrey(struct hptiop_hba *hba, u32 msg) 382 { 383 writel(msg, &(hba->u.mvfrey.mu->f0_to_cpu_msg_a)); 384 readl(&(hba->u.mvfrey.mu->f0_to_cpu_msg_a)); 385 } 386 387 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec) 388 { 389 u32 i; 390 391 hba->msg_done = 0; 392 hba->ops->disable_intr(hba); 393 hba->ops->post_msg(hba, msg); 394 395 for (i = 0; i < millisec; i++) { 396 spin_lock_irq(hba->host->host_lock); 397 hba->ops->iop_intr(hba); 398 spin_unlock_irq(hba->host->host_lock); 399 if (hba->msg_done) 400 break; 401 msleep(1); 402 } 403 404 hba->ops->enable_intr(hba); 405 return hba->msg_done? 0 : -1; 406 } 407 408 static int iop_get_config_itl(struct hptiop_hba *hba, 409 struct hpt_iop_request_get_config *config) 410 { 411 u32 req32; 412 struct hpt_iop_request_get_config __iomem *req; 413 414 req32 = readl(&hba->u.itl.iop->inbound_queue); 415 if (req32 == IOPMU_QUEUE_EMPTY) 416 return -1; 417 418 req = (struct hpt_iop_request_get_config __iomem *) 419 ((unsigned long)hba->u.itl.iop + req32); 420 421 writel(0, &req->header.flags); 422 writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type); 423 writel(sizeof(struct hpt_iop_request_get_config), &req->header.size); 424 writel(IOP_RESULT_PENDING, &req->header.result); 425 426 if (iop_send_sync_request_itl(hba, req, 20000)) { 427 dprintk("Get config send cmd failed\n"); 428 return -1; 429 } 430 431 memcpy_fromio(config, req, sizeof(*config)); 432 writel(req32, &hba->u.itl.iop->outbound_queue); 433 return 0; 434 } 435 436 static int iop_get_config_mv(struct hptiop_hba *hba, 437 struct hpt_iop_request_get_config *config) 438 { 439 struct hpt_iop_request_get_config *req = hba->u.mv.internal_req; 440 441 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 442 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG); 443 req->header.size = 444 cpu_to_le32(sizeof(struct hpt_iop_request_get_config)); 445 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 446 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG<<5); 447 req->header.context_hi32 = 0; 448 449 if (iop_send_sync_request_mv(hba, 0, 20000)) { 450 dprintk("Get config send cmd failed\n"); 451 return -1; 452 } 453 454 memcpy(config, req, sizeof(struct hpt_iop_request_get_config)); 455 return 0; 456 } 457 458 static int iop_get_config_mvfrey(struct hptiop_hba *hba, 459 struct hpt_iop_request_get_config *config) 460 { 461 struct hpt_iop_request_get_config *info = hba->u.mvfrey.config; 462 463 if (info->header.size != sizeof(struct hpt_iop_request_get_config) || 464 info->header.type != IOP_REQUEST_TYPE_GET_CONFIG) 465 return -1; 466 467 config->interface_version = info->interface_version; 468 config->firmware_version = info->firmware_version; 469 config->max_requests = info->max_requests; 470 config->request_size = info->request_size; 471 config->max_sg_count = info->max_sg_count; 472 config->data_transfer_length = info->data_transfer_length; 473 config->alignment_mask = info->alignment_mask; 474 config->max_devices = info->max_devices; 475 config->sdram_size = info->sdram_size; 476 477 return 0; 478 } 479 480 static int iop_set_config_itl(struct hptiop_hba *hba, 481 struct hpt_iop_request_set_config *config) 482 { 483 u32 req32; 484 struct hpt_iop_request_set_config __iomem *req; 485 486 req32 = readl(&hba->u.itl.iop->inbound_queue); 487 if (req32 == IOPMU_QUEUE_EMPTY) 488 return -1; 489 490 req = (struct hpt_iop_request_set_config __iomem *) 491 ((unsigned long)hba->u.itl.iop + req32); 492 493 memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header), 494 (u8 *)config + sizeof(struct hpt_iop_request_header), 495 sizeof(struct hpt_iop_request_set_config) - 496 sizeof(struct hpt_iop_request_header)); 497 498 writel(0, &req->header.flags); 499 writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type); 500 writel(sizeof(struct hpt_iop_request_set_config), &req->header.size); 501 writel(IOP_RESULT_PENDING, &req->header.result); 502 503 if (iop_send_sync_request_itl(hba, req, 20000)) { 504 dprintk("Set config send cmd failed\n"); 505 return -1; 506 } 507 508 writel(req32, &hba->u.itl.iop->outbound_queue); 509 return 0; 510 } 511 512 static int iop_set_config_mv(struct hptiop_hba *hba, 513 struct hpt_iop_request_set_config *config) 514 { 515 struct hpt_iop_request_set_config *req = hba->u.mv.internal_req; 516 517 memcpy(req, config, sizeof(struct hpt_iop_request_set_config)); 518 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 519 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG); 520 req->header.size = 521 cpu_to_le32(sizeof(struct hpt_iop_request_set_config)); 522 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 523 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5); 524 req->header.context_hi32 = 0; 525 526 if (iop_send_sync_request_mv(hba, 0, 20000)) { 527 dprintk("Set config send cmd failed\n"); 528 return -1; 529 } 530 531 return 0; 532 } 533 534 static int iop_set_config_mvfrey(struct hptiop_hba *hba, 535 struct hpt_iop_request_set_config *config) 536 { 537 struct hpt_iop_request_set_config *req = 538 hba->u.mvfrey.internal_req.req_virt; 539 540 memcpy(req, config, sizeof(struct hpt_iop_request_set_config)); 541 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 542 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG); 543 req->header.size = 544 cpu_to_le32(sizeof(struct hpt_iop_request_set_config)); 545 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 546 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5); 547 req->header.context_hi32 = 0; 548 549 if (iop_send_sync_request_mvfrey(hba, 0, 20000)) { 550 dprintk("Set config send cmd failed\n"); 551 return -1; 552 } 553 554 return 0; 555 } 556 557 static void hptiop_enable_intr_itl(struct hptiop_hba *hba) 558 { 559 writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0), 560 &hba->u.itl.iop->outbound_intmask); 561 } 562 563 static void hptiop_enable_intr_mv(struct hptiop_hba *hba) 564 { 565 writel(MVIOP_MU_OUTBOUND_INT_POSTQUEUE | MVIOP_MU_OUTBOUND_INT_MSG, 566 &hba->u.mv.regs->outbound_intmask); 567 } 568 569 static void hptiop_enable_intr_mvfrey(struct hptiop_hba *hba) 570 { 571 writel(CPU_TO_F0_DRBL_MSG_BIT, &(hba->u.mvfrey.mu->f0_doorbell_enable)); 572 writel(0x1, &(hba->u.mvfrey.mu->isr_enable)); 573 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 574 } 575 576 static int hptiop_initialize_iop(struct hptiop_hba *hba) 577 { 578 /* enable interrupts */ 579 hba->ops->enable_intr(hba); 580 581 hba->initialized = 1; 582 583 /* start background tasks */ 584 if (iop_send_sync_msg(hba, 585 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { 586 printk(KERN_ERR "scsi%d: fail to start background task\n", 587 hba->host->host_no); 588 return -1; 589 } 590 return 0; 591 } 592 593 static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index) 594 { 595 u32 mem_base_phy, length; 596 void __iomem *mem_base_virt; 597 598 struct pci_dev *pcidev = hba->pcidev; 599 600 601 if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) { 602 printk(KERN_ERR "scsi%d: pci resource invalid\n", 603 hba->host->host_no); 604 return NULL; 605 } 606 607 mem_base_phy = pci_resource_start(pcidev, index); 608 length = pci_resource_len(pcidev, index); 609 mem_base_virt = ioremap(mem_base_phy, length); 610 611 if (!mem_base_virt) { 612 printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n", 613 hba->host->host_no); 614 return NULL; 615 } 616 return mem_base_virt; 617 } 618 619 static int hptiop_map_pci_bar_itl(struct hptiop_hba *hba) 620 { 621 struct pci_dev *pcidev = hba->pcidev; 622 hba->u.itl.iop = hptiop_map_pci_bar(hba, 0); 623 if (hba->u.itl.iop == NULL) 624 return -1; 625 if ((pcidev->device & 0xff00) == 0x4400) { 626 hba->u.itl.plx = hba->u.itl.iop; 627 hba->u.itl.iop = hptiop_map_pci_bar(hba, 2); 628 if (hba->u.itl.iop == NULL) { 629 iounmap(hba->u.itl.plx); 630 return -1; 631 } 632 } 633 return 0; 634 } 635 636 static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba) 637 { 638 if (hba->u.itl.plx) 639 iounmap(hba->u.itl.plx); 640 iounmap(hba->u.itl.iop); 641 } 642 643 static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba) 644 { 645 hba->u.mv.regs = hptiop_map_pci_bar(hba, 0); 646 if (hba->u.mv.regs == NULL) 647 return -1; 648 649 hba->u.mv.mu = hptiop_map_pci_bar(hba, 2); 650 if (hba->u.mv.mu == NULL) { 651 iounmap(hba->u.mv.regs); 652 return -1; 653 } 654 655 return 0; 656 } 657 658 static int hptiop_map_pci_bar_mvfrey(struct hptiop_hba *hba) 659 { 660 hba->u.mvfrey.config = hptiop_map_pci_bar(hba, 0); 661 if (hba->u.mvfrey.config == NULL) 662 return -1; 663 664 hba->u.mvfrey.mu = hptiop_map_pci_bar(hba, 2); 665 if (hba->u.mvfrey.mu == NULL) { 666 iounmap(hba->u.mvfrey.config); 667 return -1; 668 } 669 670 return 0; 671 } 672 673 static void hptiop_unmap_pci_bar_mv(struct hptiop_hba *hba) 674 { 675 iounmap(hba->u.mv.regs); 676 iounmap(hba->u.mv.mu); 677 } 678 679 static void hptiop_unmap_pci_bar_mvfrey(struct hptiop_hba *hba) 680 { 681 iounmap(hba->u.mvfrey.config); 682 iounmap(hba->u.mvfrey.mu); 683 } 684 685 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg) 686 { 687 dprintk("iop message 0x%x\n", msg); 688 689 if (msg == IOPMU_INBOUND_MSG0_NOP || 690 msg == IOPMU_INBOUND_MSG0_RESET_COMM) 691 hba->msg_done = 1; 692 693 if (!hba->initialized) 694 return; 695 696 if (msg == IOPMU_INBOUND_MSG0_RESET) { 697 atomic_set(&hba->resetting, 0); 698 wake_up(&hba->reset_wq); 699 } 700 else if (msg <= IOPMU_INBOUND_MSG0_MAX) 701 hba->msg_done = 1; 702 } 703 704 static struct hptiop_request *get_req(struct hptiop_hba *hba) 705 { 706 struct hptiop_request *ret; 707 708 dprintk("get_req : req=%p\n", hba->req_list); 709 710 ret = hba->req_list; 711 if (ret) 712 hba->req_list = ret->next; 713 714 return ret; 715 } 716 717 static void free_req(struct hptiop_hba *hba, struct hptiop_request *req) 718 { 719 dprintk("free_req(%d, %p)\n", req->index, req); 720 req->next = hba->req_list; 721 hba->req_list = req; 722 } 723 724 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag, 725 struct hpt_iop_request_scsi_command *req) 726 { 727 struct scsi_cmnd *scp; 728 729 dprintk("hptiop_finish_scsi_req: req=%p, type=%d, " 730 "result=%d, context=0x%x tag=%d\n", 731 req, req->header.type, req->header.result, 732 req->header.context, tag); 733 734 BUG_ON(!req->header.result); 735 BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND)); 736 737 scp = hba->reqs[tag].scp; 738 739 if (HPT_SCP(scp)->mapped) 740 scsi_dma_unmap(scp); 741 742 switch (le32_to_cpu(req->header.result)) { 743 case IOP_RESULT_SUCCESS: 744 scsi_set_resid(scp, 745 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); 746 scp->result = (DID_OK<<16); 747 break; 748 case IOP_RESULT_BAD_TARGET: 749 scp->result = (DID_BAD_TARGET<<16); 750 break; 751 case IOP_RESULT_BUSY: 752 scp->result = (DID_BUS_BUSY<<16); 753 break; 754 case IOP_RESULT_RESET: 755 scp->result = (DID_RESET<<16); 756 break; 757 case IOP_RESULT_FAIL: 758 scp->result = (DID_ERROR<<16); 759 break; 760 case IOP_RESULT_INVALID_REQUEST: 761 scp->result = (DID_ABORT<<16); 762 break; 763 case IOP_RESULT_CHECK_CONDITION: 764 scsi_set_resid(scp, 765 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); 766 scp->result = SAM_STAT_CHECK_CONDITION; 767 memcpy(scp->sense_buffer, &req->sg_list, 768 min_t(size_t, SCSI_SENSE_BUFFERSIZE, 769 le32_to_cpu(req->dataxfer_length))); 770 goto skip_resid; 771 break; 772 773 default: 774 scp->result = DRIVER_INVALID << 24 | DID_ABORT << 16; 775 break; 776 } 777 778 scsi_set_resid(scp, 779 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); 780 781 skip_resid: 782 dprintk("scsi_done(%p)\n", scp); 783 scp->scsi_done(scp); 784 free_req(hba, &hba->reqs[tag]); 785 } 786 787 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 _tag) 788 { 789 struct hpt_iop_request_scsi_command *req; 790 u32 tag; 791 792 if (hba->iopintf_v2) { 793 tag = _tag & ~IOPMU_QUEUE_REQUEST_RESULT_BIT; 794 req = hba->reqs[tag].req_virt; 795 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT)) 796 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS); 797 } else { 798 tag = _tag; 799 req = hba->reqs[tag].req_virt; 800 } 801 802 hptiop_finish_scsi_req(hba, tag, req); 803 } 804 805 void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag) 806 { 807 struct hpt_iop_request_header __iomem *req; 808 struct hpt_iop_request_ioctl_command __iomem *p; 809 struct hpt_ioctl_k *arg; 810 811 req = (struct hpt_iop_request_header __iomem *) 812 ((unsigned long)hba->u.itl.iop + tag); 813 dprintk("hptiop_iop_request_callback_itl: req=%p, type=%d, " 814 "result=%d, context=0x%x tag=%d\n", 815 req, readl(&req->type), readl(&req->result), 816 readl(&req->context), tag); 817 818 BUG_ON(!readl(&req->result)); 819 BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND); 820 821 p = (struct hpt_iop_request_ioctl_command __iomem *)req; 822 arg = (struct hpt_ioctl_k *)(unsigned long) 823 (readl(&req->context) | 824 ((u64)readl(&req->context_hi32)<<32)); 825 826 if (readl(&req->result) == IOP_RESULT_SUCCESS) { 827 arg->result = HPT_IOCTL_RESULT_OK; 828 829 if (arg->outbuf_size) 830 memcpy_fromio(arg->outbuf, 831 &p->buf[(readl(&p->inbuf_size) + 3)& ~3], 832 arg->outbuf_size); 833 834 if (arg->bytes_returned) 835 *arg->bytes_returned = arg->outbuf_size; 836 } 837 else 838 arg->result = HPT_IOCTL_RESULT_FAILED; 839 840 arg->done(arg); 841 writel(tag, &hba->u.itl.iop->outbound_queue); 842 } 843 844 static irqreturn_t hptiop_intr(int irq, void *dev_id) 845 { 846 struct hptiop_hba *hba = dev_id; 847 int handled; 848 unsigned long flags; 849 850 spin_lock_irqsave(hba->host->host_lock, flags); 851 handled = hba->ops->iop_intr(hba); 852 spin_unlock_irqrestore(hba->host->host_lock, flags); 853 854 return handled; 855 } 856 857 static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg) 858 { 859 struct Scsi_Host *host = scp->device->host; 860 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 861 struct scatterlist *sg; 862 int idx, nseg; 863 864 nseg = scsi_dma_map(scp); 865 BUG_ON(nseg < 0); 866 if (!nseg) 867 return 0; 868 869 HPT_SCP(scp)->sgcnt = nseg; 870 HPT_SCP(scp)->mapped = 1; 871 872 BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors); 873 874 scsi_for_each_sg(scp, sg, HPT_SCP(scp)->sgcnt, idx) { 875 psg[idx].pci_address = cpu_to_le64(sg_dma_address(sg)) | 876 hba->ops->host_phy_flag; 877 psg[idx].size = cpu_to_le32(sg_dma_len(sg)); 878 psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ? 879 cpu_to_le32(1) : 0; 880 } 881 return HPT_SCP(scp)->sgcnt; 882 } 883 884 static void hptiop_post_req_itl(struct hptiop_hba *hba, 885 struct hptiop_request *_req) 886 { 887 struct hpt_iop_request_header *reqhdr = _req->req_virt; 888 889 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | 890 (u32)_req->index); 891 reqhdr->context_hi32 = 0; 892 893 if (hba->iopintf_v2) { 894 u32 size, size_bits; 895 896 size = le32_to_cpu(reqhdr->size); 897 if (size < 256) 898 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT; 899 else if (size < 512) 900 size_bits = IOPMU_QUEUE_ADDR_HOST_BIT; 901 else 902 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT | 903 IOPMU_QUEUE_ADDR_HOST_BIT; 904 writel(_req->req_shifted_phy | size_bits, 905 &hba->u.itl.iop->inbound_queue); 906 } else 907 writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT, 908 &hba->u.itl.iop->inbound_queue); 909 } 910 911 static void hptiop_post_req_mv(struct hptiop_hba *hba, 912 struct hptiop_request *_req) 913 { 914 struct hpt_iop_request_header *reqhdr = _req->req_virt; 915 u32 size, size_bit; 916 917 reqhdr->context = cpu_to_le32(_req->index<<8 | 918 IOP_REQUEST_TYPE_SCSI_COMMAND<<5); 919 reqhdr->context_hi32 = 0; 920 size = le32_to_cpu(reqhdr->size); 921 922 if (size <= 256) 923 size_bit = 0; 924 else if (size <= 256*2) 925 size_bit = 1; 926 else if (size <= 256*3) 927 size_bit = 2; 928 else 929 size_bit = 3; 930 931 mv_inbound_write((_req->req_shifted_phy << 5) | 932 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bit, hba); 933 } 934 935 static void hptiop_post_req_mvfrey(struct hptiop_hba *hba, 936 struct hptiop_request *_req) 937 { 938 struct hpt_iop_request_header *reqhdr = _req->req_virt; 939 u32 index; 940 941 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT | 942 IOP_REQUEST_FLAG_ADDR_BITS | 943 ((_req->req_shifted_phy >> 11) & 0xffff0000)); 944 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | 945 (_req->index << 4) | reqhdr->type); 946 reqhdr->context_hi32 = cpu_to_le32((_req->req_shifted_phy << 5) & 947 0xffffffff); 948 949 hba->u.mvfrey.inlist_wptr++; 950 index = hba->u.mvfrey.inlist_wptr & 0x3fff; 951 952 if (index == hba->u.mvfrey.list_count) { 953 index = 0; 954 hba->u.mvfrey.inlist_wptr &= ~0x3fff; 955 hba->u.mvfrey.inlist_wptr ^= CL_POINTER_TOGGLE; 956 } 957 958 hba->u.mvfrey.inlist[index].addr = 959 (dma_addr_t)_req->req_shifted_phy << 5; 960 hba->u.mvfrey.inlist[index].intrfc_len = (reqhdr->size + 3) / 4; 961 writel(hba->u.mvfrey.inlist_wptr, 962 &(hba->u.mvfrey.mu->inbound_write_ptr)); 963 readl(&(hba->u.mvfrey.mu->inbound_write_ptr)); 964 } 965 966 static int hptiop_reset_comm_itl(struct hptiop_hba *hba) 967 { 968 return 0; 969 } 970 971 static int hptiop_reset_comm_mv(struct hptiop_hba *hba) 972 { 973 return 0; 974 } 975 976 static int hptiop_reset_comm_mvfrey(struct hptiop_hba *hba) 977 { 978 u32 list_count = hba->u.mvfrey.list_count; 979 980 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_RESET_COMM, 3000)) 981 return -1; 982 983 /* wait 100ms for MCU ready */ 984 msleep(100); 985 986 writel(cpu_to_le32(hba->u.mvfrey.inlist_phy & 0xffffffff), 987 &(hba->u.mvfrey.mu->inbound_base)); 988 writel(cpu_to_le32((hba->u.mvfrey.inlist_phy >> 16) >> 16), 989 &(hba->u.mvfrey.mu->inbound_base_high)); 990 991 writel(cpu_to_le32(hba->u.mvfrey.outlist_phy & 0xffffffff), 992 &(hba->u.mvfrey.mu->outbound_base)); 993 writel(cpu_to_le32((hba->u.mvfrey.outlist_phy >> 16) >> 16), 994 &(hba->u.mvfrey.mu->outbound_base_high)); 995 996 writel(cpu_to_le32(hba->u.mvfrey.outlist_cptr_phy & 0xffffffff), 997 &(hba->u.mvfrey.mu->outbound_shadow_base)); 998 writel(cpu_to_le32((hba->u.mvfrey.outlist_cptr_phy >> 16) >> 16), 999 &(hba->u.mvfrey.mu->outbound_shadow_base_high)); 1000 1001 hba->u.mvfrey.inlist_wptr = (list_count - 1) | CL_POINTER_TOGGLE; 1002 *hba->u.mvfrey.outlist_cptr = (list_count - 1) | CL_POINTER_TOGGLE; 1003 hba->u.mvfrey.outlist_rptr = list_count - 1; 1004 return 0; 1005 } 1006 1007 static int hptiop_queuecommand_lck(struct scsi_cmnd *scp, 1008 void (*done)(struct scsi_cmnd *)) 1009 { 1010 struct Scsi_Host *host = scp->device->host; 1011 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 1012 struct hpt_iop_request_scsi_command *req; 1013 int sg_count = 0; 1014 struct hptiop_request *_req; 1015 1016 BUG_ON(!done); 1017 scp->scsi_done = done; 1018 1019 _req = get_req(hba); 1020 if (_req == NULL) { 1021 dprintk("hptiop_queuecmd : no free req\n"); 1022 return SCSI_MLQUEUE_HOST_BUSY; 1023 } 1024 1025 _req->scp = scp; 1026 1027 dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%llu cdb=(%08x-%08x-%08x-%08x) " 1028 "req_index=%d, req=%p\n", 1029 scp, 1030 host->host_no, scp->device->channel, 1031 scp->device->id, scp->device->lun, 1032 cpu_to_be32(((u32 *)scp->cmnd)[0]), 1033 cpu_to_be32(((u32 *)scp->cmnd)[1]), 1034 cpu_to_be32(((u32 *)scp->cmnd)[2]), 1035 cpu_to_be32(((u32 *)scp->cmnd)[3]), 1036 _req->index, _req->req_virt); 1037 1038 scp->result = 0; 1039 1040 if (scp->device->channel || scp->device->lun || 1041 scp->device->id > hba->max_devices) { 1042 scp->result = DID_BAD_TARGET << 16; 1043 free_req(hba, _req); 1044 goto cmd_done; 1045 } 1046 1047 req = _req->req_virt; 1048 1049 /* build S/G table */ 1050 sg_count = hptiop_buildsgl(scp, req->sg_list); 1051 if (!sg_count) 1052 HPT_SCP(scp)->mapped = 0; 1053 1054 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); 1055 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND); 1056 req->header.result = cpu_to_le32(IOP_RESULT_PENDING); 1057 req->dataxfer_length = cpu_to_le32(scsi_bufflen(scp)); 1058 req->channel = scp->device->channel; 1059 req->target = scp->device->id; 1060 req->lun = scp->device->lun; 1061 req->header.size = cpu_to_le32( 1062 sizeof(struct hpt_iop_request_scsi_command) 1063 - sizeof(struct hpt_iopsg) 1064 + sg_count * sizeof(struct hpt_iopsg)); 1065 1066 memcpy(req->cdb, scp->cmnd, sizeof(req->cdb)); 1067 hba->ops->post_req(hba, _req); 1068 return 0; 1069 1070 cmd_done: 1071 dprintk("scsi_done(scp=%p)\n", scp); 1072 scp->scsi_done(scp); 1073 return 0; 1074 } 1075 1076 static DEF_SCSI_QCMD(hptiop_queuecommand) 1077 1078 static const char *hptiop_info(struct Scsi_Host *host) 1079 { 1080 return driver_name_long; 1081 } 1082 1083 static int hptiop_reset_hba(struct hptiop_hba *hba) 1084 { 1085 if (atomic_xchg(&hba->resetting, 1) == 0) { 1086 atomic_inc(&hba->reset_count); 1087 hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET); 1088 } 1089 1090 wait_event_timeout(hba->reset_wq, 1091 atomic_read(&hba->resetting) == 0, 60 * HZ); 1092 1093 if (atomic_read(&hba->resetting)) { 1094 /* IOP is in unknown state, abort reset */ 1095 printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no); 1096 return -1; 1097 } 1098 1099 if (iop_send_sync_msg(hba, 1100 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { 1101 dprintk("scsi%d: fail to start background task\n", 1102 hba->host->host_no); 1103 } 1104 1105 return 0; 1106 } 1107 1108 static int hptiop_reset(struct scsi_cmnd *scp) 1109 { 1110 struct Scsi_Host * host = scp->device->host; 1111 struct hptiop_hba * hba = (struct hptiop_hba *)host->hostdata; 1112 1113 printk(KERN_WARNING "hptiop_reset(%d/%d/%d) scp=%p\n", 1114 scp->device->host->host_no, scp->device->channel, 1115 scp->device->id, scp); 1116 1117 return hptiop_reset_hba(hba)? FAILED : SUCCESS; 1118 } 1119 1120 static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, 1121 int queue_depth, int reason) 1122 { 1123 struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata; 1124 1125 if (reason != SCSI_QDEPTH_DEFAULT) 1126 return -EOPNOTSUPP; 1127 1128 if (queue_depth > hba->max_requests) 1129 queue_depth = hba->max_requests; 1130 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); 1131 return queue_depth; 1132 } 1133 1134 static ssize_t hptiop_show_version(struct device *dev, 1135 struct device_attribute *attr, char *buf) 1136 { 1137 return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver); 1138 } 1139 1140 static ssize_t hptiop_show_fw_version(struct device *dev, 1141 struct device_attribute *attr, char *buf) 1142 { 1143 struct Scsi_Host *host = class_to_shost(dev); 1144 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 1145 1146 return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n", 1147 hba->firmware_version >> 24, 1148 (hba->firmware_version >> 16) & 0xff, 1149 (hba->firmware_version >> 8) & 0xff, 1150 hba->firmware_version & 0xff); 1151 } 1152 1153 static struct device_attribute hptiop_attr_version = { 1154 .attr = { 1155 .name = "driver-version", 1156 .mode = S_IRUGO, 1157 }, 1158 .show = hptiop_show_version, 1159 }; 1160 1161 static struct device_attribute hptiop_attr_fw_version = { 1162 .attr = { 1163 .name = "firmware-version", 1164 .mode = S_IRUGO, 1165 }, 1166 .show = hptiop_show_fw_version, 1167 }; 1168 1169 static struct device_attribute *hptiop_attrs[] = { 1170 &hptiop_attr_version, 1171 &hptiop_attr_fw_version, 1172 NULL 1173 }; 1174 1175 static struct scsi_host_template driver_template = { 1176 .module = THIS_MODULE, 1177 .name = driver_name, 1178 .queuecommand = hptiop_queuecommand, 1179 .eh_device_reset_handler = hptiop_reset, 1180 .eh_bus_reset_handler = hptiop_reset, 1181 .info = hptiop_info, 1182 .emulated = 0, 1183 .use_clustering = ENABLE_CLUSTERING, 1184 .proc_name = driver_name, 1185 .shost_attrs = hptiop_attrs, 1186 .this_id = -1, 1187 .change_queue_depth = hptiop_adjust_disk_queue_depth, 1188 }; 1189 1190 static int hptiop_internal_memalloc_itl(struct hptiop_hba *hba) 1191 { 1192 return 0; 1193 } 1194 1195 static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba) 1196 { 1197 hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev, 1198 0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL); 1199 if (hba->u.mv.internal_req) 1200 return 0; 1201 else 1202 return -1; 1203 } 1204 1205 static int hptiop_internal_memalloc_mvfrey(struct hptiop_hba *hba) 1206 { 1207 u32 list_count = readl(&hba->u.mvfrey.mu->inbound_conf_ctl); 1208 char *p; 1209 dma_addr_t phy; 1210 1211 BUG_ON(hba->max_request_size == 0); 1212 1213 if (list_count == 0) { 1214 BUG_ON(1); 1215 return -1; 1216 } 1217 1218 list_count >>= 16; 1219 1220 hba->u.mvfrey.list_count = list_count; 1221 hba->u.mvfrey.internal_mem_size = 0x800 + 1222 list_count * sizeof(struct mvfrey_inlist_entry) + 1223 list_count * sizeof(struct mvfrey_outlist_entry) + 1224 sizeof(int); 1225 1226 p = dma_alloc_coherent(&hba->pcidev->dev, 1227 hba->u.mvfrey.internal_mem_size, &phy, GFP_KERNEL); 1228 if (!p) 1229 return -1; 1230 1231 hba->u.mvfrey.internal_req.req_virt = p; 1232 hba->u.mvfrey.internal_req.req_shifted_phy = phy >> 5; 1233 hba->u.mvfrey.internal_req.scp = NULL; 1234 hba->u.mvfrey.internal_req.next = NULL; 1235 1236 p += 0x800; 1237 phy += 0x800; 1238 1239 hba->u.mvfrey.inlist = (struct mvfrey_inlist_entry *)p; 1240 hba->u.mvfrey.inlist_phy = phy; 1241 1242 p += list_count * sizeof(struct mvfrey_inlist_entry); 1243 phy += list_count * sizeof(struct mvfrey_inlist_entry); 1244 1245 hba->u.mvfrey.outlist = (struct mvfrey_outlist_entry *)p; 1246 hba->u.mvfrey.outlist_phy = phy; 1247 1248 p += list_count * sizeof(struct mvfrey_outlist_entry); 1249 phy += list_count * sizeof(struct mvfrey_outlist_entry); 1250 1251 hba->u.mvfrey.outlist_cptr = (__le32 *)p; 1252 hba->u.mvfrey.outlist_cptr_phy = phy; 1253 1254 return 0; 1255 } 1256 1257 static int hptiop_internal_memfree_itl(struct hptiop_hba *hba) 1258 { 1259 return 0; 1260 } 1261 1262 static int hptiop_internal_memfree_mv(struct hptiop_hba *hba) 1263 { 1264 if (hba->u.mv.internal_req) { 1265 dma_free_coherent(&hba->pcidev->dev, 0x800, 1266 hba->u.mv.internal_req, hba->u.mv.internal_req_phy); 1267 return 0; 1268 } else 1269 return -1; 1270 } 1271 1272 static int hptiop_internal_memfree_mvfrey(struct hptiop_hba *hba) 1273 { 1274 if (hba->u.mvfrey.internal_req.req_virt) { 1275 dma_free_coherent(&hba->pcidev->dev, 1276 hba->u.mvfrey.internal_mem_size, 1277 hba->u.mvfrey.internal_req.req_virt, 1278 (dma_addr_t) 1279 hba->u.mvfrey.internal_req.req_shifted_phy << 5); 1280 return 0; 1281 } else 1282 return -1; 1283 } 1284 1285 static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id) 1286 { 1287 struct Scsi_Host *host = NULL; 1288 struct hptiop_hba *hba; 1289 struct hptiop_adapter_ops *iop_ops; 1290 struct hpt_iop_request_get_config iop_config; 1291 struct hpt_iop_request_set_config set_config; 1292 dma_addr_t start_phy; 1293 void *start_virt; 1294 u32 offset, i, req_size; 1295 1296 dprintk("hptiop_probe(%p)\n", pcidev); 1297 1298 if (pci_enable_device(pcidev)) { 1299 printk(KERN_ERR "hptiop: fail to enable pci device\n"); 1300 return -ENODEV; 1301 } 1302 1303 printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n", 1304 pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7, 1305 pcidev->irq); 1306 1307 pci_set_master(pcidev); 1308 1309 /* Enable 64bit DMA if possible */ 1310 iop_ops = (struct hptiop_adapter_ops *)id->driver_data; 1311 if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(iop_ops->hw_dma_bit_mask))) { 1312 if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(32))) { 1313 printk(KERN_ERR "hptiop: fail to set dma_mask\n"); 1314 goto disable_pci_device; 1315 } 1316 } 1317 1318 if (pci_request_regions(pcidev, driver_name)) { 1319 printk(KERN_ERR "hptiop: pci_request_regions failed\n"); 1320 goto disable_pci_device; 1321 } 1322 1323 host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba)); 1324 if (!host) { 1325 printk(KERN_ERR "hptiop: fail to alloc scsi host\n"); 1326 goto free_pci_regions; 1327 } 1328 1329 hba = (struct hptiop_hba *)host->hostdata; 1330 1331 hba->ops = iop_ops; 1332 hba->pcidev = pcidev; 1333 hba->host = host; 1334 hba->initialized = 0; 1335 hba->iopintf_v2 = 0; 1336 1337 atomic_set(&hba->resetting, 0); 1338 atomic_set(&hba->reset_count, 0); 1339 1340 init_waitqueue_head(&hba->reset_wq); 1341 init_waitqueue_head(&hba->ioctl_wq); 1342 1343 host->max_lun = 1; 1344 host->max_channel = 0; 1345 host->io_port = 0; 1346 host->n_io_port = 0; 1347 host->irq = pcidev->irq; 1348 1349 if (hba->ops->map_pci_bar(hba)) 1350 goto free_scsi_host; 1351 1352 if (hba->ops->iop_wait_ready(hba, 20000)) { 1353 printk(KERN_ERR "scsi%d: firmware not ready\n", 1354 hba->host->host_no); 1355 goto unmap_pci_bar; 1356 } 1357 1358 if (hba->ops->family == MV_BASED_IOP) { 1359 if (hba->ops->internal_memalloc(hba)) { 1360 printk(KERN_ERR "scsi%d: internal_memalloc failed\n", 1361 hba->host->host_no); 1362 goto unmap_pci_bar; 1363 } 1364 } 1365 1366 if (hba->ops->get_config(hba, &iop_config)) { 1367 printk(KERN_ERR "scsi%d: get config failed\n", 1368 hba->host->host_no); 1369 goto unmap_pci_bar; 1370 } 1371 1372 hba->max_requests = min(le32_to_cpu(iop_config.max_requests), 1373 HPTIOP_MAX_REQUESTS); 1374 hba->max_devices = le32_to_cpu(iop_config.max_devices); 1375 hba->max_request_size = le32_to_cpu(iop_config.request_size); 1376 hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count); 1377 hba->firmware_version = le32_to_cpu(iop_config.firmware_version); 1378 hba->interface_version = le32_to_cpu(iop_config.interface_version); 1379 hba->sdram_size = le32_to_cpu(iop_config.sdram_size); 1380 1381 if (hba->ops->family == MVFREY_BASED_IOP) { 1382 if (hba->ops->internal_memalloc(hba)) { 1383 printk(KERN_ERR "scsi%d: internal_memalloc failed\n", 1384 hba->host->host_no); 1385 goto unmap_pci_bar; 1386 } 1387 if (hba->ops->reset_comm(hba)) { 1388 printk(KERN_ERR "scsi%d: reset comm failed\n", 1389 hba->host->host_no); 1390 goto unmap_pci_bar; 1391 } 1392 } 1393 1394 if (hba->firmware_version > 0x01020000 || 1395 hba->interface_version > 0x01020000) 1396 hba->iopintf_v2 = 1; 1397 1398 host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9; 1399 host->max_id = le32_to_cpu(iop_config.max_devices); 1400 host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count); 1401 host->can_queue = le32_to_cpu(iop_config.max_requests); 1402 host->cmd_per_lun = le32_to_cpu(iop_config.max_requests); 1403 host->max_cmd_len = 16; 1404 1405 req_size = sizeof(struct hpt_iop_request_scsi_command) 1406 + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1); 1407 if ((req_size & 0x1f) != 0) 1408 req_size = (req_size + 0x1f) & ~0x1f; 1409 1410 memset(&set_config, 0, sizeof(struct hpt_iop_request_set_config)); 1411 set_config.iop_id = cpu_to_le32(host->host_no); 1412 set_config.vbus_id = cpu_to_le16(host->host_no); 1413 set_config.max_host_request_size = cpu_to_le16(req_size); 1414 1415 if (hba->ops->set_config(hba, &set_config)) { 1416 printk(KERN_ERR "scsi%d: set config failed\n", 1417 hba->host->host_no); 1418 goto unmap_pci_bar; 1419 } 1420 1421 pci_set_drvdata(pcidev, host); 1422 1423 if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED, 1424 driver_name, hba)) { 1425 printk(KERN_ERR "scsi%d: request irq %d failed\n", 1426 hba->host->host_no, pcidev->irq); 1427 goto unmap_pci_bar; 1428 } 1429 1430 /* Allocate request mem */ 1431 1432 dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests); 1433 1434 hba->req_size = req_size; 1435 start_virt = dma_alloc_coherent(&pcidev->dev, 1436 hba->req_size*hba->max_requests + 0x20, 1437 &start_phy, GFP_KERNEL); 1438 1439 if (!start_virt) { 1440 printk(KERN_ERR "scsi%d: fail to alloc request mem\n", 1441 hba->host->host_no); 1442 goto free_request_irq; 1443 } 1444 1445 hba->dma_coherent = start_virt; 1446 hba->dma_coherent_handle = start_phy; 1447 1448 if ((start_phy & 0x1f) != 0) { 1449 offset = ((start_phy + 0x1f) & ~0x1f) - start_phy; 1450 start_phy += offset; 1451 start_virt += offset; 1452 } 1453 1454 hba->req_list = NULL; 1455 for (i = 0; i < hba->max_requests; i++) { 1456 hba->reqs[i].next = NULL; 1457 hba->reqs[i].req_virt = start_virt; 1458 hba->reqs[i].req_shifted_phy = start_phy >> 5; 1459 hba->reqs[i].index = i; 1460 free_req(hba, &hba->reqs[i]); 1461 start_virt = (char *)start_virt + hba->req_size; 1462 start_phy = start_phy + hba->req_size; 1463 } 1464 1465 /* Enable Interrupt and start background task */ 1466 if (hptiop_initialize_iop(hba)) 1467 goto free_request_mem; 1468 1469 if (scsi_add_host(host, &pcidev->dev)) { 1470 printk(KERN_ERR "scsi%d: scsi_add_host failed\n", 1471 hba->host->host_no); 1472 goto free_request_mem; 1473 } 1474 1475 scsi_scan_host(host); 1476 1477 dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no); 1478 return 0; 1479 1480 free_request_mem: 1481 dma_free_coherent(&hba->pcidev->dev, 1482 hba->req_size * hba->max_requests + 0x20, 1483 hba->dma_coherent, hba->dma_coherent_handle); 1484 1485 free_request_irq: 1486 free_irq(hba->pcidev->irq, hba); 1487 1488 unmap_pci_bar: 1489 hba->ops->internal_memfree(hba); 1490 1491 hba->ops->unmap_pci_bar(hba); 1492 1493 free_scsi_host: 1494 scsi_host_put(host); 1495 1496 free_pci_regions: 1497 pci_release_regions(pcidev); 1498 1499 disable_pci_device: 1500 pci_disable_device(pcidev); 1501 1502 dprintk("scsi%d: hptiop_probe fail\n", host ? host->host_no : 0); 1503 return -ENODEV; 1504 } 1505 1506 static void hptiop_shutdown(struct pci_dev *pcidev) 1507 { 1508 struct Scsi_Host *host = pci_get_drvdata(pcidev); 1509 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 1510 1511 dprintk("hptiop_shutdown(%p)\n", hba); 1512 1513 /* stop the iop */ 1514 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000)) 1515 printk(KERN_ERR "scsi%d: shutdown the iop timeout\n", 1516 hba->host->host_no); 1517 1518 /* disable all outbound interrupts */ 1519 hba->ops->disable_intr(hba); 1520 } 1521 1522 static void hptiop_disable_intr_itl(struct hptiop_hba *hba) 1523 { 1524 u32 int_mask; 1525 1526 int_mask = readl(&hba->u.itl.iop->outbound_intmask); 1527 writel(int_mask | 1528 IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE, 1529 &hba->u.itl.iop->outbound_intmask); 1530 readl(&hba->u.itl.iop->outbound_intmask); 1531 } 1532 1533 static void hptiop_disable_intr_mv(struct hptiop_hba *hba) 1534 { 1535 writel(0, &hba->u.mv.regs->outbound_intmask); 1536 readl(&hba->u.mv.regs->outbound_intmask); 1537 } 1538 1539 static void hptiop_disable_intr_mvfrey(struct hptiop_hba *hba) 1540 { 1541 writel(0, &(hba->u.mvfrey.mu->f0_doorbell_enable)); 1542 readl(&(hba->u.mvfrey.mu->f0_doorbell_enable)); 1543 writel(0, &(hba->u.mvfrey.mu->isr_enable)); 1544 readl(&(hba->u.mvfrey.mu->isr_enable)); 1545 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); 1546 readl(&(hba->u.mvfrey.mu->pcie_f0_int_enable)); 1547 } 1548 1549 static void hptiop_remove(struct pci_dev *pcidev) 1550 { 1551 struct Scsi_Host *host = pci_get_drvdata(pcidev); 1552 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; 1553 1554 dprintk("scsi%d: hptiop_remove\n", hba->host->host_no); 1555 1556 scsi_remove_host(host); 1557 1558 hptiop_shutdown(pcidev); 1559 1560 free_irq(hba->pcidev->irq, hba); 1561 1562 dma_free_coherent(&hba->pcidev->dev, 1563 hba->req_size * hba->max_requests + 0x20, 1564 hba->dma_coherent, 1565 hba->dma_coherent_handle); 1566 1567 hba->ops->internal_memfree(hba); 1568 1569 hba->ops->unmap_pci_bar(hba); 1570 1571 pci_release_regions(hba->pcidev); 1572 pci_set_drvdata(hba->pcidev, NULL); 1573 pci_disable_device(hba->pcidev); 1574 1575 scsi_host_put(host); 1576 } 1577 1578 static struct hptiop_adapter_ops hptiop_itl_ops = { 1579 .family = INTEL_BASED_IOP, 1580 .iop_wait_ready = iop_wait_ready_itl, 1581 .internal_memalloc = hptiop_internal_memalloc_itl, 1582 .internal_memfree = hptiop_internal_memfree_itl, 1583 .map_pci_bar = hptiop_map_pci_bar_itl, 1584 .unmap_pci_bar = hptiop_unmap_pci_bar_itl, 1585 .enable_intr = hptiop_enable_intr_itl, 1586 .disable_intr = hptiop_disable_intr_itl, 1587 .get_config = iop_get_config_itl, 1588 .set_config = iop_set_config_itl, 1589 .iop_intr = iop_intr_itl, 1590 .post_msg = hptiop_post_msg_itl, 1591 .post_req = hptiop_post_req_itl, 1592 .hw_dma_bit_mask = 64, 1593 .reset_comm = hptiop_reset_comm_itl, 1594 .host_phy_flag = cpu_to_le64(0), 1595 }; 1596 1597 static struct hptiop_adapter_ops hptiop_mv_ops = { 1598 .family = MV_BASED_IOP, 1599 .iop_wait_ready = iop_wait_ready_mv, 1600 .internal_memalloc = hptiop_internal_memalloc_mv, 1601 .internal_memfree = hptiop_internal_memfree_mv, 1602 .map_pci_bar = hptiop_map_pci_bar_mv, 1603 .unmap_pci_bar = hptiop_unmap_pci_bar_mv, 1604 .enable_intr = hptiop_enable_intr_mv, 1605 .disable_intr = hptiop_disable_intr_mv, 1606 .get_config = iop_get_config_mv, 1607 .set_config = iop_set_config_mv, 1608 .iop_intr = iop_intr_mv, 1609 .post_msg = hptiop_post_msg_mv, 1610 .post_req = hptiop_post_req_mv, 1611 .hw_dma_bit_mask = 33, 1612 .reset_comm = hptiop_reset_comm_mv, 1613 .host_phy_flag = cpu_to_le64(0), 1614 }; 1615 1616 static struct hptiop_adapter_ops hptiop_mvfrey_ops = { 1617 .family = MVFREY_BASED_IOP, 1618 .iop_wait_ready = iop_wait_ready_mvfrey, 1619 .internal_memalloc = hptiop_internal_memalloc_mvfrey, 1620 .internal_memfree = hptiop_internal_memfree_mvfrey, 1621 .map_pci_bar = hptiop_map_pci_bar_mvfrey, 1622 .unmap_pci_bar = hptiop_unmap_pci_bar_mvfrey, 1623 .enable_intr = hptiop_enable_intr_mvfrey, 1624 .disable_intr = hptiop_disable_intr_mvfrey, 1625 .get_config = iop_get_config_mvfrey, 1626 .set_config = iop_set_config_mvfrey, 1627 .iop_intr = iop_intr_mvfrey, 1628 .post_msg = hptiop_post_msg_mvfrey, 1629 .post_req = hptiop_post_req_mvfrey, 1630 .hw_dma_bit_mask = 64, 1631 .reset_comm = hptiop_reset_comm_mvfrey, 1632 .host_phy_flag = cpu_to_le64(1), 1633 }; 1634 1635 static struct pci_device_id hptiop_id_table[] = { 1636 { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops }, 1637 { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops }, 1638 { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops }, 1639 { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops }, 1640 { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops }, 1641 { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops }, 1642 { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops }, 1643 { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops }, 1644 { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops }, 1645 { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops }, 1646 { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops }, 1647 { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops }, 1648 { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops }, 1649 { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops }, 1650 { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops }, 1651 { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops }, 1652 { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops }, 1653 { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops }, 1654 { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops }, 1655 { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops }, 1656 { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops }, 1657 { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops }, 1658 { PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1659 { PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops }, 1660 {}, 1661 }; 1662 1663 MODULE_DEVICE_TABLE(pci, hptiop_id_table); 1664 1665 static struct pci_driver hptiop_pci_driver = { 1666 .name = driver_name, 1667 .id_table = hptiop_id_table, 1668 .probe = hptiop_probe, 1669 .remove = hptiop_remove, 1670 .shutdown = hptiop_shutdown, 1671 }; 1672 1673 static int __init hptiop_module_init(void) 1674 { 1675 printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver); 1676 return pci_register_driver(&hptiop_pci_driver); 1677 } 1678 1679 static void __exit hptiop_module_exit(void) 1680 { 1681 pci_unregister_driver(&hptiop_pci_driver); 1682 } 1683 1684 1685 module_init(hptiop_module_init); 1686 module_exit(hptiop_module_exit); 1687 1688 MODULE_LICENSE("GPL"); 1689 1690