HighPoint Linux Team | ede1e6f | 2006-05-16 14:38:09 +0800 | [diff] [blame] | 1 | /* |
| 2 | * HighPoint RR3xxx controller driver for Linux |
| 3 | * Copyright (C) 2006 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/config.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/types.h> |
| 21 | #include <linux/string.h> |
| 22 | #include <linux/kernel.h> |
| 23 | #include <linux/pci.h> |
| 24 | #include <linux/interrupt.h> |
| 25 | #include <linux/errno.h> |
| 26 | #include <linux/delay.h> |
| 27 | #include <linux/timer.h> |
| 28 | #include <linux/spinlock.h> |
| 29 | #include <linux/hdreg.h> |
| 30 | #include <asm/uaccess.h> |
| 31 | #include <asm/io.h> |
| 32 | #include <asm/div64.h> |
| 33 | #include <scsi/scsi_cmnd.h> |
| 34 | #include <scsi/scsi_device.h> |
| 35 | #include <scsi/scsi.h> |
| 36 | #include <scsi/scsi_tcq.h> |
| 37 | #include <scsi/scsi_host.h> |
| 38 | |
| 39 | #include "hptiop.h" |
| 40 | |
| 41 | MODULE_AUTHOR("HighPoint Technologies, Inc."); |
| 42 | MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx SATA Controller Driver"); |
| 43 | |
| 44 | static char driver_name[] = "hptiop"; |
| 45 | static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver"; |
| 46 | static const char driver_ver[] = "v1.0 (060426)"; |
| 47 | |
| 48 | static DEFINE_SPINLOCK(hptiop_hba_list_lock); |
| 49 | static LIST_HEAD(hptiop_hba_list); |
| 50 | static int hptiop_cdev_major = -1; |
| 51 | |
| 52 | static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag); |
| 53 | static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag); |
| 54 | static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg); |
| 55 | |
| 56 | static inline void hptiop_pci_posting_flush(struct hpt_iopmu __iomem *iop) |
| 57 | { |
| 58 | readl(&iop->outbound_intstatus); |
| 59 | } |
| 60 | |
| 61 | static int iop_wait_ready(struct hpt_iopmu __iomem *iop, u32 millisec) |
| 62 | { |
| 63 | u32 req = 0; |
| 64 | int i; |
| 65 | |
| 66 | for (i = 0; i < millisec; i++) { |
| 67 | req = readl(&iop->inbound_queue); |
| 68 | if (req != IOPMU_QUEUE_EMPTY) |
| 69 | break; |
| 70 | msleep(1); |
| 71 | } |
| 72 | |
| 73 | if (req != IOPMU_QUEUE_EMPTY) { |
| 74 | writel(req, &iop->outbound_queue); |
| 75 | hptiop_pci_posting_flush(iop); |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | return -1; |
| 80 | } |
| 81 | |
| 82 | static void hptiop_request_callback(struct hptiop_hba *hba, u32 tag) |
| 83 | { |
| 84 | if ((tag & IOPMU_QUEUE_MASK_HOST_BITS) == IOPMU_QUEUE_ADDR_HOST_BIT) |
| 85 | return hptiop_host_request_callback(hba, |
| 86 | tag & ~IOPMU_QUEUE_ADDR_HOST_BIT); |
| 87 | else |
| 88 | return hptiop_iop_request_callback(hba, tag); |
| 89 | } |
| 90 | |
| 91 | static inline void hptiop_drain_outbound_queue(struct hptiop_hba *hba) |
| 92 | { |
| 93 | u32 req; |
| 94 | |
| 95 | while ((req = readl(&hba->iop->outbound_queue)) != IOPMU_QUEUE_EMPTY) { |
| 96 | |
| 97 | if (req & IOPMU_QUEUE_MASK_HOST_BITS) |
| 98 | hptiop_request_callback(hba, req); |
| 99 | else { |
| 100 | struct hpt_iop_request_header __iomem * p; |
| 101 | |
| 102 | p = (struct hpt_iop_request_header __iomem *) |
| 103 | ((char __iomem *)hba->iop + req); |
| 104 | |
| 105 | if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) { |
| 106 | if (readl(&p->context)) |
| 107 | hptiop_request_callback(hba, req); |
| 108 | else |
| 109 | writel(1, &p->context); |
| 110 | } |
| 111 | else |
| 112 | hptiop_request_callback(hba, req); |
| 113 | } |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | static int __iop_intr(struct hptiop_hba *hba) |
| 118 | { |
| 119 | struct hpt_iopmu __iomem *iop = hba->iop; |
| 120 | u32 status; |
| 121 | int ret = 0; |
| 122 | |
| 123 | status = readl(&iop->outbound_intstatus); |
| 124 | |
| 125 | if (status & IOPMU_OUTBOUND_INT_MSG0) { |
| 126 | u32 msg = readl(&iop->outbound_msgaddr0); |
| 127 | dprintk("received outbound msg %x\n", msg); |
| 128 | writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus); |
| 129 | hptiop_message_callback(hba, msg); |
| 130 | ret = 1; |
| 131 | } |
| 132 | |
| 133 | if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) { |
| 134 | hptiop_drain_outbound_queue(hba); |
| 135 | ret = 1; |
| 136 | } |
| 137 | |
| 138 | return ret; |
| 139 | } |
| 140 | |
| 141 | static int iop_send_sync_request(struct hptiop_hba *hba, |
| 142 | void __iomem *_req, u32 millisec) |
| 143 | { |
| 144 | struct hpt_iop_request_header __iomem *req = _req; |
| 145 | u32 i; |
| 146 | |
| 147 | writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, |
| 148 | &req->flags); |
| 149 | |
| 150 | writel(0, &req->context); |
| 151 | |
| 152 | writel((unsigned long)req - (unsigned long)hba->iop, |
| 153 | &hba->iop->inbound_queue); |
| 154 | |
| 155 | hptiop_pci_posting_flush(hba->iop); |
| 156 | |
| 157 | for (i = 0; i < millisec; i++) { |
| 158 | __iop_intr(hba); |
| 159 | if (readl(&req->context)) |
| 160 | return 0; |
| 161 | msleep(1); |
| 162 | } |
| 163 | |
| 164 | return -1; |
| 165 | } |
| 166 | |
| 167 | static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec) |
| 168 | { |
| 169 | u32 i; |
| 170 | |
| 171 | hba->msg_done = 0; |
| 172 | |
| 173 | writel(msg, &hba->iop->inbound_msgaddr0); |
| 174 | |
| 175 | hptiop_pci_posting_flush(hba->iop); |
| 176 | |
| 177 | for (i = 0; i < millisec; i++) { |
| 178 | spin_lock_irq(hba->host->host_lock); |
| 179 | __iop_intr(hba); |
| 180 | spin_unlock_irq(hba->host->host_lock); |
| 181 | if (hba->msg_done) |
| 182 | break; |
| 183 | msleep(1); |
| 184 | } |
| 185 | |
| 186 | return hba->msg_done? 0 : -1; |
| 187 | } |
| 188 | |
| 189 | static int iop_get_config(struct hptiop_hba *hba, |
| 190 | struct hpt_iop_request_get_config *config) |
| 191 | { |
| 192 | u32 req32; |
| 193 | struct hpt_iop_request_get_config __iomem *req; |
| 194 | |
| 195 | req32 = readl(&hba->iop->inbound_queue); |
| 196 | if (req32 == IOPMU_QUEUE_EMPTY) |
| 197 | return -1; |
| 198 | |
| 199 | req = (struct hpt_iop_request_get_config __iomem *) |
| 200 | ((unsigned long)hba->iop + req32); |
| 201 | |
| 202 | writel(0, &req->header.flags); |
| 203 | writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type); |
| 204 | writel(sizeof(struct hpt_iop_request_get_config), &req->header.size); |
| 205 | writel(IOP_RESULT_PENDING, &req->header.result); |
| 206 | |
| 207 | if (iop_send_sync_request(hba, req, 20000)) { |
| 208 | dprintk("Get config send cmd failed\n"); |
| 209 | return -1; |
| 210 | } |
| 211 | |
| 212 | memcpy_fromio(config, req, sizeof(*config)); |
| 213 | writel(req32, &hba->iop->outbound_queue); |
| 214 | return 0; |
| 215 | } |
| 216 | |
| 217 | static int iop_set_config(struct hptiop_hba *hba, |
| 218 | struct hpt_iop_request_set_config *config) |
| 219 | { |
| 220 | u32 req32; |
| 221 | struct hpt_iop_request_set_config __iomem *req; |
| 222 | |
| 223 | req32 = readl(&hba->iop->inbound_queue); |
| 224 | if (req32 == IOPMU_QUEUE_EMPTY) |
| 225 | return -1; |
| 226 | |
| 227 | req = (struct hpt_iop_request_set_config __iomem *) |
| 228 | ((unsigned long)hba->iop + req32); |
| 229 | |
| 230 | memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header), |
| 231 | (u8 *)config + sizeof(struct hpt_iop_request_header), |
| 232 | sizeof(struct hpt_iop_request_set_config) - |
| 233 | sizeof(struct hpt_iop_request_header)); |
| 234 | |
| 235 | writel(0, &req->header.flags); |
| 236 | writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type); |
| 237 | writel(sizeof(struct hpt_iop_request_set_config), &req->header.size); |
| 238 | writel(IOP_RESULT_PENDING, &req->header.result); |
| 239 | |
| 240 | if (iop_send_sync_request(hba, req, 20000)) { |
| 241 | dprintk("Set config send cmd failed\n"); |
| 242 | return -1; |
| 243 | } |
| 244 | |
| 245 | writel(req32, &hba->iop->outbound_queue); |
| 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | static int hptiop_initialize_iop(struct hptiop_hba *hba) |
| 250 | { |
| 251 | struct hpt_iopmu __iomem *iop = hba->iop; |
| 252 | |
| 253 | /* enable interrupts */ |
| 254 | writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0), |
| 255 | &iop->outbound_intmask); |
| 256 | |
| 257 | hba->initialized = 1; |
| 258 | |
| 259 | /* start background tasks */ |
| 260 | if (iop_send_sync_msg(hba, |
| 261 | IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { |
| 262 | printk(KERN_ERR "scsi%d: fail to start background task\n", |
| 263 | hba->host->host_no); |
| 264 | return -1; |
| 265 | } |
| 266 | return 0; |
| 267 | } |
| 268 | |
| 269 | static int hptiop_map_pci_bar(struct hptiop_hba *hba) |
| 270 | { |
| 271 | u32 mem_base_phy, length; |
| 272 | void __iomem *mem_base_virt; |
| 273 | struct pci_dev *pcidev = hba->pcidev; |
| 274 | |
| 275 | if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_MEM)) { |
| 276 | printk(KERN_ERR "scsi%d: pci resource invalid\n", |
| 277 | hba->host->host_no); |
| 278 | return -1; |
| 279 | } |
| 280 | |
| 281 | mem_base_phy = pci_resource_start(pcidev, 0); |
| 282 | length = pci_resource_len(pcidev, 0); |
| 283 | mem_base_virt = ioremap(mem_base_phy, length); |
| 284 | |
| 285 | if (!mem_base_virt) { |
| 286 | printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n", |
| 287 | hba->host->host_no); |
| 288 | return -1; |
| 289 | } |
| 290 | |
| 291 | hba->iop = mem_base_virt; |
| 292 | dprintk("hptiop_map_pci_bar: iop=%p\n", hba->iop); |
| 293 | return 0; |
| 294 | } |
| 295 | |
| 296 | static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg) |
| 297 | { |
| 298 | dprintk("iop message 0x%x\n", msg); |
| 299 | |
| 300 | if (!hba->initialized) |
| 301 | return; |
| 302 | |
| 303 | if (msg == IOPMU_INBOUND_MSG0_RESET) { |
| 304 | atomic_set(&hba->resetting, 0); |
| 305 | wake_up(&hba->reset_wq); |
| 306 | } |
| 307 | else if (msg <= IOPMU_INBOUND_MSG0_MAX) |
| 308 | hba->msg_done = 1; |
| 309 | } |
| 310 | |
| 311 | static inline struct hptiop_request *get_req(struct hptiop_hba *hba) |
| 312 | { |
| 313 | struct hptiop_request *ret; |
| 314 | |
| 315 | dprintk("get_req : req=%p\n", hba->req_list); |
| 316 | |
| 317 | ret = hba->req_list; |
| 318 | if (ret) |
| 319 | hba->req_list = ret->next; |
| 320 | |
| 321 | return ret; |
| 322 | } |
| 323 | |
| 324 | static inline void free_req(struct hptiop_hba *hba, struct hptiop_request *req) |
| 325 | { |
| 326 | dprintk("free_req(%d, %p)\n", req->index, req); |
| 327 | req->next = hba->req_list; |
| 328 | hba->req_list = req; |
| 329 | } |
| 330 | |
| 331 | static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag) |
| 332 | { |
| 333 | struct hpt_iop_request_scsi_command *req; |
| 334 | struct scsi_cmnd *scp; |
| 335 | |
| 336 | req = (struct hpt_iop_request_scsi_command *)hba->reqs[tag].req_virt; |
| 337 | dprintk("hptiop_host_request_callback: req=%p, type=%d, " |
| 338 | "result=%d, context=0x%x tag=%d\n", |
| 339 | req, req->header.type, req->header.result, |
| 340 | req->header.context, tag); |
| 341 | |
| 342 | BUG_ON(!req->header.result); |
| 343 | BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND)); |
| 344 | |
| 345 | scp = hba->reqs[tag].scp; |
| 346 | |
| 347 | if (HPT_SCP(scp)->mapped) { |
| 348 | if (scp->use_sg) |
| 349 | pci_unmap_sg(hba->pcidev, |
| 350 | (struct scatterlist *)scp->request_buffer, |
| 351 | scp->use_sg, |
| 352 | scp->sc_data_direction |
| 353 | ); |
| 354 | else |
| 355 | pci_unmap_single(hba->pcidev, |
| 356 | HPT_SCP(scp)->dma_handle, |
| 357 | scp->request_bufflen, |
| 358 | scp->sc_data_direction |
| 359 | ); |
| 360 | } |
| 361 | |
| 362 | switch (le32_to_cpu(req->header.result)) { |
| 363 | case IOP_RESULT_SUCCESS: |
| 364 | scp->result = (DID_OK<<16); |
| 365 | break; |
| 366 | case IOP_RESULT_BAD_TARGET: |
| 367 | scp->result = (DID_BAD_TARGET<<16); |
| 368 | break; |
| 369 | case IOP_RESULT_BUSY: |
| 370 | scp->result = (DID_BUS_BUSY<<16); |
| 371 | break; |
| 372 | case IOP_RESULT_RESET: |
| 373 | scp->result = (DID_RESET<<16); |
| 374 | break; |
| 375 | case IOP_RESULT_FAIL: |
| 376 | scp->result = (DID_ERROR<<16); |
| 377 | break; |
| 378 | case IOP_RESULT_INVALID_REQUEST: |
| 379 | scp->result = (DID_ABORT<<16); |
| 380 | break; |
| 381 | case IOP_RESULT_MODE_SENSE_CHECK_CONDITION: |
| 382 | scp->result = SAM_STAT_CHECK_CONDITION; |
| 383 | memset(&scp->sense_buffer, |
| 384 | 0, sizeof(scp->sense_buffer)); |
| 385 | memcpy(&scp->sense_buffer, |
| 386 | &req->sg_list, le32_to_cpu(req->dataxfer_length)); |
| 387 | break; |
| 388 | |
| 389 | default: |
| 390 | scp->result = ((DRIVER_INVALID|SUGGEST_ABORT)<<24) | |
| 391 | (DID_ABORT<<16); |
| 392 | break; |
| 393 | } |
| 394 | |
| 395 | dprintk("scsi_done(%p)\n", scp); |
| 396 | scp->scsi_done(scp); |
| 397 | free_req(hba, &hba->reqs[tag]); |
| 398 | } |
| 399 | |
| 400 | void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag) |
| 401 | { |
| 402 | struct hpt_iop_request_header __iomem *req; |
| 403 | struct hpt_iop_request_ioctl_command __iomem *p; |
| 404 | struct hpt_ioctl_k *arg; |
| 405 | |
| 406 | req = (struct hpt_iop_request_header __iomem *) |
| 407 | ((unsigned long)hba->iop + tag); |
| 408 | dprintk("hptiop_iop_request_callback: req=%p, type=%d, " |
| 409 | "result=%d, context=0x%x tag=%d\n", |
| 410 | req, readl(&req->type), readl(&req->result), |
| 411 | readl(&req->context), tag); |
| 412 | |
| 413 | BUG_ON(!readl(&req->result)); |
| 414 | BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND); |
| 415 | |
| 416 | p = (struct hpt_iop_request_ioctl_command __iomem *)req; |
| 417 | arg = (struct hpt_ioctl_k *)(unsigned long) |
| 418 | (readl(&req->context) | |
| 419 | ((u64)readl(&req->context_hi32)<<32)); |
| 420 | |
| 421 | if (readl(&req->result) == IOP_RESULT_SUCCESS) { |
| 422 | arg->result = HPT_IOCTL_RESULT_OK; |
| 423 | |
| 424 | if (arg->outbuf_size) |
| 425 | memcpy_fromio(arg->outbuf, |
| 426 | &p->buf[(readl(&p->inbuf_size) + 3)& ~3], |
| 427 | arg->outbuf_size); |
| 428 | |
| 429 | if (arg->bytes_returned) |
| 430 | *arg->bytes_returned = arg->outbuf_size; |
| 431 | } |
| 432 | else |
| 433 | arg->result = HPT_IOCTL_RESULT_FAILED; |
| 434 | |
| 435 | arg->done(arg); |
| 436 | writel(tag, &hba->iop->outbound_queue); |
| 437 | } |
| 438 | |
| 439 | static irqreturn_t hptiop_intr(int irq, void *dev_id, struct pt_regs *regs) |
| 440 | { |
| 441 | struct hptiop_hba *hba = dev_id; |
| 442 | int handled; |
| 443 | unsigned long flags; |
| 444 | |
| 445 | spin_lock_irqsave(hba->host->host_lock, flags); |
| 446 | handled = __iop_intr(hba); |
| 447 | spin_unlock_irqrestore(hba->host->host_lock, flags); |
| 448 | |
| 449 | return handled; |
| 450 | } |
| 451 | |
| 452 | static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg) |
| 453 | { |
| 454 | struct Scsi_Host *host = scp->device->host; |
| 455 | struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; |
| 456 | struct scatterlist *sglist = (struct scatterlist *)scp->request_buffer; |
| 457 | |
| 458 | /* |
| 459 | * though we'll not get non-use_sg fields anymore, |
| 460 | * keep use_sg checking anyway |
| 461 | */ |
| 462 | if (scp->use_sg) { |
| 463 | int idx; |
| 464 | |
| 465 | HPT_SCP(scp)->sgcnt = pci_map_sg(hba->pcidev, |
| 466 | sglist, scp->use_sg, |
| 467 | scp->sc_data_direction); |
| 468 | HPT_SCP(scp)->mapped = 1; |
| 469 | BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors); |
| 470 | |
| 471 | for (idx = 0; idx < HPT_SCP(scp)->sgcnt; idx++) { |
| 472 | psg[idx].pci_address = |
| 473 | cpu_to_le64(sg_dma_address(&sglist[idx])); |
| 474 | psg[idx].size = cpu_to_le32(sg_dma_len(&sglist[idx])); |
| 475 | psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ? |
| 476 | cpu_to_le32(1) : 0; |
| 477 | } |
| 478 | |
| 479 | return HPT_SCP(scp)->sgcnt; |
| 480 | } else { |
| 481 | HPT_SCP(scp)->dma_handle = pci_map_single( |
| 482 | hba->pcidev, |
| 483 | scp->request_buffer, |
| 484 | scp->request_bufflen, |
| 485 | scp->sc_data_direction |
| 486 | ); |
| 487 | HPT_SCP(scp)->mapped = 1; |
| 488 | psg->pci_address = cpu_to_le64(HPT_SCP(scp)->dma_handle); |
| 489 | psg->size = cpu_to_le32(scp->request_bufflen); |
| 490 | psg->eot = cpu_to_le32(1); |
| 491 | return 1; |
| 492 | } |
| 493 | } |
| 494 | |
| 495 | static int hptiop_queuecommand(struct scsi_cmnd *scp, |
| 496 | void (*done)(struct scsi_cmnd *)) |
| 497 | { |
| 498 | struct Scsi_Host *host = scp->device->host; |
| 499 | struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; |
| 500 | struct hpt_iop_request_scsi_command *req; |
| 501 | int sg_count = 0; |
| 502 | struct hptiop_request *_req; |
| 503 | |
| 504 | BUG_ON(!done); |
| 505 | scp->scsi_done = done; |
| 506 | |
| 507 | /* |
| 508 | * hptiop_shutdown will flash controller cache. |
| 509 | */ |
| 510 | if (scp->cmnd[0] == SYNCHRONIZE_CACHE) { |
| 511 | scp->result = DID_OK<<16; |
| 512 | goto cmd_done; |
| 513 | } |
| 514 | |
| 515 | _req = get_req(hba); |
| 516 | if (_req == NULL) { |
| 517 | dprintk("hptiop_queuecmd : no free req\n"); |
| 518 | scp->result = DID_BUS_BUSY << 16; |
| 519 | goto cmd_done; |
| 520 | } |
| 521 | |
| 522 | _req->scp = scp; |
| 523 | |
| 524 | dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%d cdb=(%x-%x-%x) " |
| 525 | "req_index=%d, req=%p\n", |
| 526 | scp, |
| 527 | host->host_no, scp->device->channel, |
| 528 | scp->device->id, scp->device->lun, |
| 529 | *((u32 *)&scp->cmnd), |
| 530 | *((u32 *)&scp->cmnd + 1), |
| 531 | *((u32 *)&scp->cmnd + 2), |
| 532 | _req->index, _req->req_virt); |
| 533 | |
| 534 | scp->result = 0; |
| 535 | |
| 536 | if (scp->device->channel || scp->device->lun || |
| 537 | scp->device->id > hba->max_devices) { |
| 538 | scp->result = DID_BAD_TARGET << 16; |
| 539 | free_req(hba, _req); |
| 540 | goto cmd_done; |
| 541 | } |
| 542 | |
| 543 | req = (struct hpt_iop_request_scsi_command *)_req->req_virt; |
| 544 | |
| 545 | /* build S/G table */ |
| 546 | if (scp->request_bufflen) |
| 547 | sg_count = hptiop_buildsgl(scp, req->sg_list); |
| 548 | else |
| 549 | HPT_SCP(scp)->mapped = 0; |
| 550 | |
| 551 | req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); |
| 552 | req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND); |
| 553 | req->header.result = cpu_to_le32(IOP_RESULT_PENDING); |
| 554 | req->header.context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | |
| 555 | (u32)_req->index); |
| 556 | req->header.context_hi32 = 0; |
| 557 | req->dataxfer_length = cpu_to_le32(scp->bufflen); |
| 558 | req->channel = scp->device->channel; |
| 559 | req->target = scp->device->id; |
| 560 | req->lun = scp->device->lun; |
| 561 | req->header.size = cpu_to_le32( |
| 562 | sizeof(struct hpt_iop_request_scsi_command) |
| 563 | - sizeof(struct hpt_iopsg) |
| 564 | + sg_count * sizeof(struct hpt_iopsg)); |
| 565 | |
| 566 | memcpy(req->cdb, scp->cmnd, sizeof(req->cdb)); |
| 567 | |
| 568 | writel(IOPMU_QUEUE_ADDR_HOST_BIT | _req->req_shifted_phy, |
| 569 | &hba->iop->inbound_queue); |
| 570 | |
| 571 | return 0; |
| 572 | |
| 573 | cmd_done: |
| 574 | dprintk("scsi_done(scp=%p)\n", scp); |
| 575 | scp->scsi_done(scp); |
| 576 | return 0; |
| 577 | } |
| 578 | |
| 579 | static const char *hptiop_info(struct Scsi_Host *host) |
| 580 | { |
| 581 | return driver_name_long; |
| 582 | } |
| 583 | |
| 584 | static int hptiop_reset_hba(struct hptiop_hba *hba) |
| 585 | { |
| 586 | if (atomic_xchg(&hba->resetting, 1) == 0) { |
| 587 | atomic_inc(&hba->reset_count); |
| 588 | writel(IOPMU_INBOUND_MSG0_RESET, |
| 589 | &hba->iop->outbound_msgaddr0); |
| 590 | hptiop_pci_posting_flush(hba->iop); |
| 591 | } |
| 592 | |
| 593 | wait_event_timeout(hba->reset_wq, |
| 594 | atomic_read(&hba->resetting) == 0, 60 * HZ); |
| 595 | |
| 596 | if (atomic_read(&hba->resetting)) { |
| 597 | /* IOP is in unkown state, abort reset */ |
| 598 | printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no); |
| 599 | return -1; |
| 600 | } |
| 601 | |
| 602 | if (iop_send_sync_msg(hba, |
| 603 | IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { |
| 604 | dprintk("scsi%d: fail to start background task\n", |
| 605 | hba->host->host_no); |
| 606 | } |
| 607 | |
| 608 | return 0; |
| 609 | } |
| 610 | |
| 611 | static int hptiop_reset(struct scsi_cmnd *scp) |
| 612 | { |
| 613 | struct Scsi_Host * host = scp->device->host; |
| 614 | struct hptiop_hba * hba = (struct hptiop_hba *)host->hostdata; |
| 615 | |
| 616 | printk(KERN_WARNING "hptiop_reset(%d/%d/%d) scp=%p\n", |
| 617 | scp->device->host->host_no, scp->device->channel, |
| 618 | scp->device->id, scp); |
| 619 | |
| 620 | return hptiop_reset_hba(hba)? FAILED : SUCCESS; |
| 621 | } |
| 622 | |
| 623 | static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, |
| 624 | int queue_depth) |
| 625 | { |
| 626 | if(queue_depth > 256) |
| 627 | queue_depth = 256; |
| 628 | scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); |
| 629 | return queue_depth; |
| 630 | } |
| 631 | |
| 632 | struct hptiop_getinfo { |
| 633 | char __user *buffer; |
| 634 | loff_t buflength; |
| 635 | loff_t bufoffset; |
| 636 | loff_t buffillen; |
| 637 | loff_t filpos; |
| 638 | }; |
| 639 | |
| 640 | static void hptiop_copy_mem_info(struct hptiop_getinfo *pinfo, |
| 641 | char *data, int datalen) |
| 642 | { |
| 643 | if (pinfo->filpos < pinfo->bufoffset) { |
| 644 | if (pinfo->filpos + datalen <= pinfo->bufoffset) { |
| 645 | pinfo->filpos += datalen; |
| 646 | return; |
| 647 | } else { |
| 648 | data += (pinfo->bufoffset - pinfo->filpos); |
| 649 | datalen -= (pinfo->bufoffset - pinfo->filpos); |
| 650 | pinfo->filpos = pinfo->bufoffset; |
| 651 | } |
| 652 | } |
| 653 | |
| 654 | pinfo->filpos += datalen; |
| 655 | if (pinfo->buffillen == pinfo->buflength) |
| 656 | return; |
| 657 | |
| 658 | if (pinfo->buflength - pinfo->buffillen < datalen) |
| 659 | datalen = pinfo->buflength - pinfo->buffillen; |
| 660 | |
| 661 | if (copy_to_user(pinfo->buffer + pinfo->buffillen, data, datalen)) |
| 662 | return; |
| 663 | |
| 664 | pinfo->buffillen += datalen; |
| 665 | } |
| 666 | |
| 667 | static int hptiop_copy_info(struct hptiop_getinfo *pinfo, char *fmt, ...) |
| 668 | { |
| 669 | va_list args; |
| 670 | char buf[128]; |
| 671 | int len; |
| 672 | |
| 673 | va_start(args, fmt); |
| 674 | len = vsnprintf(buf, sizeof(buf), fmt, args); |
| 675 | va_end(args); |
| 676 | hptiop_copy_mem_info(pinfo, buf, len); |
| 677 | return len; |
| 678 | } |
| 679 | |
| 680 | static void hptiop_ioctl_done(struct hpt_ioctl_k *arg) |
| 681 | { |
| 682 | arg->done = NULL; |
| 683 | wake_up(&arg->hba->ioctl_wq); |
| 684 | } |
| 685 | |
| 686 | static void hptiop_do_ioctl(struct hpt_ioctl_k *arg) |
| 687 | { |
| 688 | struct hptiop_hba *hba = arg->hba; |
| 689 | u32 val; |
| 690 | struct hpt_iop_request_ioctl_command __iomem *req; |
| 691 | int ioctl_retry = 0; |
| 692 | |
| 693 | dprintk("scsi%d: hptiop_do_ioctl\n", hba->host->host_no); |
| 694 | |
| 695 | /* |
| 696 | * check (in + out) buff size from application. |
| 697 | * outbuf must be dword aligned. |
| 698 | */ |
| 699 | if (((arg->inbuf_size + 3) & ~3) + arg->outbuf_size > |
| 700 | hba->max_request_size |
| 701 | - sizeof(struct hpt_iop_request_header) |
| 702 | - 4 * sizeof(u32)) { |
| 703 | dprintk("scsi%d: ioctl buf size (%d/%d) is too large\n", |
| 704 | hba->host->host_no, |
| 705 | arg->inbuf_size, arg->outbuf_size); |
| 706 | arg->result = HPT_IOCTL_RESULT_FAILED; |
| 707 | return; |
| 708 | } |
| 709 | |
| 710 | retry: |
| 711 | spin_lock_irq(hba->host->host_lock); |
| 712 | |
| 713 | val = readl(&hba->iop->inbound_queue); |
| 714 | if (val == IOPMU_QUEUE_EMPTY) { |
| 715 | spin_unlock_irq(hba->host->host_lock); |
| 716 | dprintk("scsi%d: no free req for ioctl\n", hba->host->host_no); |
| 717 | arg->result = -1; |
| 718 | return; |
| 719 | } |
| 720 | |
| 721 | req = (struct hpt_iop_request_ioctl_command __iomem *) |
| 722 | ((unsigned long)hba->iop + val); |
| 723 | |
| 724 | writel(HPT_CTL_CODE_LINUX_TO_IOP(arg->ioctl_code), |
| 725 | &req->ioctl_code); |
| 726 | writel(arg->inbuf_size, &req->inbuf_size); |
| 727 | writel(arg->outbuf_size, &req->outbuf_size); |
| 728 | |
| 729 | /* |
| 730 | * use the buffer on the IOP local memory first, then copy it |
| 731 | * back to host. |
| 732 | * the caller's request buffer shoudl be little-endian. |
| 733 | */ |
| 734 | if (arg->inbuf_size) |
| 735 | memcpy_toio(req->buf, arg->inbuf, arg->inbuf_size); |
| 736 | |
| 737 | /* correct the controller ID for IOP */ |
| 738 | if ((arg->ioctl_code == HPT_IOCTL_GET_CHANNEL_INFO || |
| 739 | arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO_V2 || |
| 740 | arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO) |
| 741 | && arg->inbuf_size >= sizeof(u32)) |
| 742 | writel(0, req->buf); |
| 743 | |
| 744 | writel(IOP_REQUEST_TYPE_IOCTL_COMMAND, &req->header.type); |
| 745 | writel(0, &req->header.flags); |
| 746 | writel(offsetof(struct hpt_iop_request_ioctl_command, buf) |
| 747 | + arg->inbuf_size, &req->header.size); |
| 748 | writel((u32)(unsigned long)arg, &req->header.context); |
| 749 | writel(BITS_PER_LONG > 32 ? (u32)((unsigned long)arg>>32) : 0, |
| 750 | &req->header.context_hi32); |
| 751 | writel(IOP_RESULT_PENDING, &req->header.result); |
| 752 | |
| 753 | arg->result = HPT_IOCTL_RESULT_FAILED; |
| 754 | arg->done = hptiop_ioctl_done; |
| 755 | |
| 756 | writel(val, &hba->iop->inbound_queue); |
| 757 | hptiop_pci_posting_flush(hba->iop); |
| 758 | |
| 759 | spin_unlock_irq(hba->host->host_lock); |
| 760 | |
| 761 | wait_event_timeout(hba->ioctl_wq, arg->done == NULL, 60 * HZ); |
| 762 | |
| 763 | if (arg->done != NULL) { |
| 764 | hptiop_reset_hba(hba); |
| 765 | if (ioctl_retry++ < 3) |
| 766 | goto retry; |
| 767 | } |
| 768 | |
| 769 | dprintk("hpt_iop_ioctl %x result %d\n", |
| 770 | arg->ioctl_code, arg->result); |
| 771 | } |
| 772 | |
| 773 | static int __hpt_do_ioctl(struct hptiop_hba *hba, u32 code, void *inbuf, |
| 774 | u32 insize, void *outbuf, u32 outsize) |
| 775 | { |
| 776 | struct hpt_ioctl_k arg; |
| 777 | arg.hba = hba; |
| 778 | arg.ioctl_code = code; |
| 779 | arg.inbuf = inbuf; |
| 780 | arg.outbuf = outbuf; |
| 781 | arg.inbuf_size = insize; |
| 782 | arg.outbuf_size = outsize; |
| 783 | arg.bytes_returned = NULL; |
| 784 | hptiop_do_ioctl(&arg); |
| 785 | return arg.result; |
| 786 | } |
| 787 | |
| 788 | static inline int hpt_id_valid(__le32 id) |
| 789 | { |
| 790 | return id != 0 && id != cpu_to_le32(0xffffffff); |
| 791 | } |
| 792 | |
| 793 | static int hptiop_get_controller_info(struct hptiop_hba *hba, |
| 794 | struct hpt_controller_info *pinfo) |
| 795 | { |
| 796 | int id = 0; |
| 797 | |
| 798 | return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CONTROLLER_INFO, |
| 799 | &id, sizeof(int), pinfo, sizeof(*pinfo)); |
| 800 | } |
| 801 | |
| 802 | |
| 803 | static int hptiop_get_channel_info(struct hptiop_hba *hba, int bus, |
| 804 | struct hpt_channel_info *pinfo) |
| 805 | { |
| 806 | u32 ids[2]; |
| 807 | |
| 808 | ids[0] = 0; |
| 809 | ids[1] = bus; |
| 810 | return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CHANNEL_INFO, |
| 811 | ids, sizeof(ids), pinfo, sizeof(*pinfo)); |
| 812 | |
| 813 | } |
| 814 | |
| 815 | static int hptiop_get_logical_devices(struct hptiop_hba *hba, |
| 816 | __le32 *pids, int maxcount) |
| 817 | { |
| 818 | int i; |
| 819 | u32 count = maxcount - 1; |
| 820 | |
| 821 | if (__hpt_do_ioctl(hba, HPT_IOCTL_GET_LOGICAL_DEVICES, |
| 822 | &count, sizeof(u32), |
| 823 | pids, sizeof(u32) * maxcount)) |
| 824 | return -1; |
| 825 | |
| 826 | maxcount = le32_to_cpu(pids[0]); |
| 827 | for (i = 0; i < maxcount; i++) |
| 828 | pids[i] = pids[i+1]; |
| 829 | |
| 830 | return maxcount; |
| 831 | } |
| 832 | |
| 833 | static int hptiop_get_device_info_v3(struct hptiop_hba *hba, __le32 id, |
| 834 | struct hpt_logical_device_info_v3 *pinfo) |
| 835 | { |
| 836 | return __hpt_do_ioctl(hba, HPT_IOCTL_GET_DEVICE_INFO_V3, |
| 837 | &id, sizeof(u32), |
| 838 | pinfo, sizeof(*pinfo)); |
| 839 | } |
| 840 | |
| 841 | static const char *get_array_status(struct hpt_logical_device_info_v3 *devinfo) |
| 842 | { |
| 843 | static char s[64]; |
| 844 | u32 flags = le32_to_cpu(devinfo->u.array.flags); |
| 845 | u32 trans_prog = le32_to_cpu(devinfo->u.array.transforming_progress); |
| 846 | u32 reb_prog = le32_to_cpu(devinfo->u.array.rebuilding_progress); |
| 847 | |
| 848 | if (flags & ARRAY_FLAG_DISABLED) |
| 849 | return "Disabled"; |
| 850 | else if (flags & ARRAY_FLAG_TRANSFORMING) |
| 851 | sprintf(s, "Expanding/Migrating %d.%d%%%s%s", |
| 852 | trans_prog / 100, |
| 853 | trans_prog % 100, |
| 854 | (flags & (ARRAY_FLAG_NEEDBUILDING|ARRAY_FLAG_BROKEN))? |
| 855 | ", Critical" : "", |
| 856 | ((flags & ARRAY_FLAG_NEEDINITIALIZING) && |
| 857 | !(flags & ARRAY_FLAG_REBUILDING) && |
| 858 | !(flags & ARRAY_FLAG_INITIALIZING))? |
| 859 | ", Unintialized" : ""); |
| 860 | else if ((flags & ARRAY_FLAG_BROKEN) && |
| 861 | devinfo->u.array.array_type != AT_RAID6) |
| 862 | return "Critical"; |
| 863 | else if (flags & ARRAY_FLAG_REBUILDING) |
| 864 | sprintf(s, |
| 865 | (flags & ARRAY_FLAG_NEEDINITIALIZING)? |
| 866 | "%sBackground initializing %d.%d%%" : |
| 867 | "%sRebuilding %d.%d%%", |
| 868 | (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", |
| 869 | reb_prog / 100, |
| 870 | reb_prog % 100); |
| 871 | else if (flags & ARRAY_FLAG_VERIFYING) |
| 872 | sprintf(s, "%sVerifying %d.%d%%", |
| 873 | (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", |
| 874 | reb_prog / 100, |
| 875 | reb_prog % 100); |
| 876 | else if (flags & ARRAY_FLAG_INITIALIZING) |
| 877 | sprintf(s, "%sForground initializing %d.%d%%", |
| 878 | (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", |
| 879 | reb_prog / 100, |
| 880 | reb_prog % 100); |
| 881 | else if (flags & ARRAY_FLAG_NEEDTRANSFORM) |
| 882 | sprintf(s,"%s%s%s", "Need Expanding/Migrating", |
| 883 | (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", |
| 884 | ((flags & ARRAY_FLAG_NEEDINITIALIZING) && |
| 885 | !(flags & ARRAY_FLAG_REBUILDING) && |
| 886 | !(flags & ARRAY_FLAG_INITIALIZING))? |
| 887 | ", Unintialized" : ""); |
| 888 | else if (flags & ARRAY_FLAG_NEEDINITIALIZING && |
| 889 | !(flags & ARRAY_FLAG_REBUILDING) && |
| 890 | !(flags & ARRAY_FLAG_INITIALIZING)) |
| 891 | sprintf(s,"%sUninitialized", |
| 892 | (flags & ARRAY_FLAG_BROKEN)? "Critical, " : ""); |
| 893 | else if ((flags & ARRAY_FLAG_NEEDBUILDING) || |
| 894 | (flags & ARRAY_FLAG_BROKEN)) |
| 895 | return "Critical"; |
| 896 | else |
| 897 | return "Normal"; |
| 898 | return s; |
| 899 | } |
| 900 | |
| 901 | static void hptiop_dump_devinfo(struct hptiop_hba *hba, |
| 902 | struct hptiop_getinfo *pinfo, __le32 id, int indent) |
| 903 | { |
| 904 | struct hpt_logical_device_info_v3 devinfo; |
| 905 | int i; |
| 906 | u64 capacity; |
| 907 | |
| 908 | for (i = 0; i < indent; i++) |
| 909 | hptiop_copy_info(pinfo, "\t"); |
| 910 | |
| 911 | if (hptiop_get_device_info_v3(hba, id, &devinfo)) { |
| 912 | hptiop_copy_info(pinfo, "unknown\n"); |
| 913 | return; |
| 914 | } |
| 915 | |
| 916 | switch (devinfo.type) { |
| 917 | |
| 918 | case LDT_DEVICE: { |
| 919 | struct hd_driveid *driveid; |
| 920 | u32 flags = le32_to_cpu(devinfo.u.device.flags); |
| 921 | |
| 922 | driveid = (struct hd_driveid *)devinfo.u.device.ident; |
| 923 | /* model[] is 40 chars long, but we just want 20 chars here */ |
| 924 | driveid->model[20] = 0; |
| 925 | |
| 926 | if (indent) |
| 927 | if (flags & DEVICE_FLAG_DISABLED) |
| 928 | hptiop_copy_info(pinfo,"Missing\n"); |
| 929 | else |
| 930 | hptiop_copy_info(pinfo, "CH%d %s\n", |
| 931 | devinfo.u.device.path_id + 1, |
| 932 | driveid->model); |
| 933 | else { |
| 934 | capacity = le64_to_cpu(devinfo.capacity) * 512; |
| 935 | do_div(capacity, 1000000); |
| 936 | hptiop_copy_info(pinfo, |
| 937 | "CH%d %s, %lluMB, %s %s%s%s%s\n", |
| 938 | devinfo.u.device.path_id + 1, |
| 939 | driveid->model, |
| 940 | capacity, |
| 941 | (flags & DEVICE_FLAG_DISABLED)? |
| 942 | "Disabled" : "Normal", |
| 943 | devinfo.u.device.read_ahead_enabled? |
| 944 | "[RA]" : "", |
| 945 | devinfo.u.device.write_cache_enabled? |
| 946 | "[WC]" : "", |
| 947 | devinfo.u.device.TCQ_enabled? |
| 948 | "[TCQ]" : "", |
| 949 | devinfo.u.device.NCQ_enabled? |
| 950 | "[NCQ]" : "" |
| 951 | ); |
| 952 | } |
| 953 | break; |
| 954 | } |
| 955 | |
| 956 | case LDT_ARRAY: |
| 957 | if (devinfo.target_id != INVALID_TARGET_ID) |
| 958 | hptiop_copy_info(pinfo, "[DISK %d_%d] ", |
| 959 | devinfo.vbus_id, devinfo.target_id); |
| 960 | |
| 961 | capacity = le64_to_cpu(devinfo.capacity) * 512; |
| 962 | do_div(capacity, 1000000); |
| 963 | hptiop_copy_info(pinfo, "%s (%s), %lluMB, %s\n", |
| 964 | devinfo.u.array.name, |
| 965 | devinfo.u.array.array_type==AT_RAID0? "RAID0" : |
| 966 | devinfo.u.array.array_type==AT_RAID1? "RAID1" : |
| 967 | devinfo.u.array.array_type==AT_RAID5? "RAID5" : |
| 968 | devinfo.u.array.array_type==AT_RAID6? "RAID6" : |
| 969 | devinfo.u.array.array_type==AT_JBOD? "JBOD" : |
| 970 | "unknown", |
| 971 | capacity, |
| 972 | get_array_status(&devinfo)); |
| 973 | for (i = 0; i < devinfo.u.array.ndisk; i++) { |
| 974 | if (hpt_id_valid(devinfo.u.array.members[i])) { |
| 975 | if (cpu_to_le16(1<<i) & |
| 976 | devinfo.u.array.critical_members) |
| 977 | hptiop_copy_info(pinfo, "\t*"); |
| 978 | hptiop_dump_devinfo(hba, pinfo, |
| 979 | devinfo.u.array.members[i], indent+1); |
| 980 | } |
| 981 | else |
| 982 | hptiop_copy_info(pinfo, "\tMissing\n"); |
| 983 | } |
| 984 | if (id == devinfo.u.array.transform_source) { |
| 985 | hptiop_copy_info(pinfo, "\tExpanding/Migrating to:\n"); |
| 986 | hptiop_dump_devinfo(hba, pinfo, |
| 987 | devinfo.u.array.transform_target, indent+1); |
| 988 | } |
| 989 | break; |
| 990 | } |
| 991 | } |
| 992 | |
| 993 | static ssize_t hptiop_show_version(struct class_device *class_dev, char *buf) |
| 994 | { |
| 995 | return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver); |
| 996 | } |
| 997 | |
| 998 | static ssize_t hptiop_cdev_read(struct file *filp, char __user *buf, |
| 999 | size_t count, loff_t *ppos) |
| 1000 | { |
| 1001 | struct hptiop_hba *hba = filp->private_data; |
| 1002 | struct hptiop_getinfo info; |
| 1003 | int i, j, ndev; |
| 1004 | struct hpt_controller_info con_info; |
| 1005 | struct hpt_channel_info chan_info; |
| 1006 | __le32 ids[32]; |
| 1007 | |
| 1008 | info.buffer = buf; |
| 1009 | info.buflength = count; |
| 1010 | info.bufoffset = ppos ? *ppos : 0; |
| 1011 | info.filpos = 0; |
| 1012 | info.buffillen = 0; |
| 1013 | |
| 1014 | if (hptiop_get_controller_info(hba, &con_info)) |
| 1015 | return -EIO; |
| 1016 | |
| 1017 | for (i = 0; i < con_info.num_buses; i++) { |
| 1018 | if (hptiop_get_channel_info(hba, i, &chan_info) == 0) { |
| 1019 | if (hpt_id_valid(chan_info.devices[0])) |
| 1020 | hptiop_dump_devinfo(hba, &info, |
| 1021 | chan_info.devices[0], 0); |
| 1022 | if (hpt_id_valid(chan_info.devices[1])) |
| 1023 | hptiop_dump_devinfo(hba, &info, |
| 1024 | chan_info.devices[1], 0); |
| 1025 | } |
| 1026 | } |
| 1027 | |
| 1028 | ndev = hptiop_get_logical_devices(hba, ids, |
| 1029 | sizeof(ids) / sizeof(ids[0])); |
| 1030 | |
| 1031 | /* |
| 1032 | * if hptiop_get_logical_devices fails, ndev==-1 and it just |
| 1033 | * output nothing here |
| 1034 | */ |
| 1035 | for (j = 0; j < ndev; j++) |
| 1036 | hptiop_dump_devinfo(hba, &info, ids[j], 0); |
| 1037 | |
| 1038 | if (ppos) |
| 1039 | *ppos += info.buffillen; |
| 1040 | |
| 1041 | return info.buffillen; |
| 1042 | } |
| 1043 | |
| 1044 | static int hptiop_cdev_ioctl(struct inode *inode, struct file *file, |
| 1045 | unsigned int cmd, unsigned long arg) |
| 1046 | { |
| 1047 | struct hptiop_hba *hba = file->private_data; |
| 1048 | struct hpt_ioctl_u ioctl_u; |
| 1049 | struct hpt_ioctl_k ioctl_k; |
| 1050 | u32 bytes_returned; |
| 1051 | int err = -EINVAL; |
| 1052 | |
| 1053 | if (copy_from_user(&ioctl_u, |
| 1054 | (void __user *)arg, sizeof(struct hpt_ioctl_u))) |
| 1055 | return -EINVAL; |
| 1056 | |
| 1057 | if (ioctl_u.magic != HPT_IOCTL_MAGIC) |
| 1058 | return -EINVAL; |
| 1059 | |
| 1060 | ioctl_k.ioctl_code = ioctl_u.ioctl_code; |
| 1061 | ioctl_k.inbuf = NULL; |
| 1062 | ioctl_k.inbuf_size = ioctl_u.inbuf_size; |
| 1063 | ioctl_k.outbuf = NULL; |
| 1064 | ioctl_k.outbuf_size = ioctl_u.outbuf_size; |
| 1065 | ioctl_k.hba = hba; |
| 1066 | ioctl_k.bytes_returned = &bytes_returned; |
| 1067 | |
| 1068 | /* verify user buffer */ |
| 1069 | if ((ioctl_k.inbuf_size && !access_ok(VERIFY_READ, |
| 1070 | ioctl_u.inbuf, ioctl_k.inbuf_size)) || |
| 1071 | (ioctl_k.outbuf_size && !access_ok(VERIFY_WRITE, |
| 1072 | ioctl_u.outbuf, ioctl_k.outbuf_size)) || |
| 1073 | (ioctl_u.bytes_returned && !access_ok(VERIFY_WRITE, |
| 1074 | ioctl_u.bytes_returned, sizeof(u32))) || |
| 1075 | ioctl_k.inbuf_size + ioctl_k.outbuf_size > 0x10000) { |
| 1076 | |
| 1077 | dprintk("scsi%d: got bad user address\n", hba->host->host_no); |
| 1078 | return -EINVAL; |
| 1079 | } |
| 1080 | |
| 1081 | /* map buffer to kernel. */ |
| 1082 | if (ioctl_k.inbuf_size) { |
| 1083 | ioctl_k.inbuf = kmalloc(ioctl_k.inbuf_size, GFP_KERNEL); |
| 1084 | if (!ioctl_k.inbuf) { |
| 1085 | dprintk("scsi%d: fail to alloc inbuf\n", |
| 1086 | hba->host->host_no); |
| 1087 | err = -ENOMEM; |
| 1088 | goto err_exit; |
| 1089 | } |
| 1090 | |
| 1091 | if (copy_from_user(ioctl_k.inbuf, |
| 1092 | ioctl_u.inbuf, ioctl_k.inbuf_size)) { |
| 1093 | goto err_exit; |
| 1094 | } |
| 1095 | } |
| 1096 | |
| 1097 | if (ioctl_k.outbuf_size) { |
| 1098 | ioctl_k.outbuf = kmalloc(ioctl_k.outbuf_size, GFP_KERNEL); |
| 1099 | if (!ioctl_k.outbuf) { |
| 1100 | dprintk("scsi%d: fail to alloc outbuf\n", |
| 1101 | hba->host->host_no); |
| 1102 | err = -ENOMEM; |
| 1103 | goto err_exit; |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | hptiop_do_ioctl(&ioctl_k); |
| 1108 | |
| 1109 | if (ioctl_k.result == HPT_IOCTL_RESULT_OK) { |
| 1110 | if (ioctl_k.outbuf_size && |
| 1111 | copy_to_user(ioctl_u.outbuf, |
| 1112 | ioctl_k.outbuf, ioctl_k.outbuf_size)) |
| 1113 | goto err_exit; |
| 1114 | |
| 1115 | if (ioctl_u.bytes_returned && |
| 1116 | copy_to_user(ioctl_u.bytes_returned, |
| 1117 | &bytes_returned, sizeof(u32))) |
| 1118 | goto err_exit; |
| 1119 | |
| 1120 | err = 0; |
| 1121 | } |
| 1122 | |
| 1123 | err_exit: |
| 1124 | kfree(ioctl_k.inbuf); |
| 1125 | kfree(ioctl_k.outbuf); |
| 1126 | |
| 1127 | return err; |
| 1128 | } |
| 1129 | |
| 1130 | static int hptiop_cdev_open(struct inode *inode, struct file *file) |
| 1131 | { |
| 1132 | struct hptiop_hba *hba; |
| 1133 | unsigned i = 0, minor = iminor(inode); |
| 1134 | int ret = -ENODEV; |
| 1135 | |
| 1136 | spin_lock(&hptiop_hba_list_lock); |
| 1137 | list_for_each_entry(hba, &hptiop_hba_list, link) { |
| 1138 | if (i == minor) { |
| 1139 | file->private_data = hba; |
| 1140 | ret = 0; |
| 1141 | goto out; |
| 1142 | } |
| 1143 | i++; |
| 1144 | } |
| 1145 | |
| 1146 | out: |
| 1147 | spin_unlock(&hptiop_hba_list_lock); |
| 1148 | return ret; |
| 1149 | } |
| 1150 | |
| 1151 | static struct file_operations hptiop_cdev_fops = { |
| 1152 | .owner = THIS_MODULE, |
| 1153 | .read = hptiop_cdev_read, |
| 1154 | .ioctl = hptiop_cdev_ioctl, |
| 1155 | .open = hptiop_cdev_open, |
| 1156 | }; |
| 1157 | |
| 1158 | static ssize_t hptiop_show_fw_version(struct class_device *class_dev, char *buf) |
| 1159 | { |
| 1160 | struct Scsi_Host *host = class_to_shost(class_dev); |
| 1161 | struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; |
| 1162 | |
| 1163 | return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n", |
| 1164 | hba->firmware_version >> 24, |
| 1165 | (hba->firmware_version >> 16) & 0xff, |
| 1166 | (hba->firmware_version >> 8) & 0xff, |
| 1167 | hba->firmware_version & 0xff); |
| 1168 | } |
| 1169 | |
| 1170 | static struct class_device_attribute hptiop_attr_version = { |
| 1171 | .attr = { |
| 1172 | .name = "driver-version", |
| 1173 | .mode = S_IRUGO, |
| 1174 | }, |
| 1175 | .show = hptiop_show_version, |
| 1176 | }; |
| 1177 | |
| 1178 | static struct class_device_attribute hptiop_attr_fw_version = { |
| 1179 | .attr = { |
| 1180 | .name = "firmware-version", |
| 1181 | .mode = S_IRUGO, |
| 1182 | }, |
| 1183 | .show = hptiop_show_fw_version, |
| 1184 | }; |
| 1185 | |
| 1186 | static struct class_device_attribute *hptiop_attrs[] = { |
| 1187 | &hptiop_attr_version, |
| 1188 | &hptiop_attr_fw_version, |
| 1189 | NULL |
| 1190 | }; |
| 1191 | |
| 1192 | static struct scsi_host_template driver_template = { |
| 1193 | .module = THIS_MODULE, |
| 1194 | .name = driver_name, |
| 1195 | .queuecommand = hptiop_queuecommand, |
| 1196 | .eh_device_reset_handler = hptiop_reset, |
| 1197 | .eh_bus_reset_handler = hptiop_reset, |
| 1198 | .info = hptiop_info, |
| 1199 | .unchecked_isa_dma = 0, |
| 1200 | .emulated = 0, |
| 1201 | .use_clustering = ENABLE_CLUSTERING, |
| 1202 | .proc_name = driver_name, |
| 1203 | .shost_attrs = hptiop_attrs, |
| 1204 | .this_id = -1, |
| 1205 | .change_queue_depth = hptiop_adjust_disk_queue_depth, |
| 1206 | }; |
| 1207 | |
| 1208 | static int __devinit hptiop_probe(struct pci_dev *pcidev, |
| 1209 | const struct pci_device_id *id) |
| 1210 | { |
| 1211 | struct Scsi_Host *host = NULL; |
| 1212 | struct hptiop_hba *hba; |
| 1213 | struct hpt_iop_request_get_config iop_config; |
| 1214 | struct hpt_iop_request_set_config set_config; |
| 1215 | dma_addr_t start_phy; |
| 1216 | void *start_virt; |
| 1217 | u32 offset, i, req_size; |
| 1218 | |
| 1219 | dprintk("hptiop_probe(%p)\n", pcidev); |
| 1220 | |
| 1221 | if (pci_enable_device(pcidev)) { |
| 1222 | printk(KERN_ERR "hptiop: fail to enable pci device\n"); |
| 1223 | return -ENODEV; |
| 1224 | } |
| 1225 | |
| 1226 | printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n", |
| 1227 | pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7, |
| 1228 | pcidev->irq); |
| 1229 | |
| 1230 | pci_set_master(pcidev); |
| 1231 | |
| 1232 | /* Enable 64bit DMA if possible */ |
| 1233 | if (pci_set_dma_mask(pcidev, DMA_64BIT_MASK)) { |
| 1234 | if (pci_set_dma_mask(pcidev, DMA_32BIT_MASK)) { |
| 1235 | printk(KERN_ERR "hptiop: fail to set dma_mask\n"); |
| 1236 | goto disable_pci_device; |
| 1237 | } |
| 1238 | } |
| 1239 | |
| 1240 | if (pci_request_regions(pcidev, driver_name)) { |
| 1241 | printk(KERN_ERR "hptiop: pci_request_regions failed\n"); |
| 1242 | goto disable_pci_device; |
| 1243 | } |
| 1244 | |
| 1245 | host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba)); |
| 1246 | if (!host) { |
| 1247 | printk(KERN_ERR "hptiop: fail to alloc scsi host\n"); |
| 1248 | goto free_pci_regions; |
| 1249 | } |
| 1250 | |
| 1251 | hba = (struct hptiop_hba *)host->hostdata; |
| 1252 | |
| 1253 | hba->pcidev = pcidev; |
| 1254 | hba->host = host; |
| 1255 | hba->initialized = 0; |
| 1256 | |
| 1257 | atomic_set(&hba->resetting, 0); |
| 1258 | atomic_set(&hba->reset_count, 0); |
| 1259 | |
| 1260 | init_waitqueue_head(&hba->reset_wq); |
| 1261 | init_waitqueue_head(&hba->ioctl_wq); |
| 1262 | |
| 1263 | host->max_lun = 1; |
| 1264 | host->max_channel = 0; |
| 1265 | host->io_port = 0; |
| 1266 | host->n_io_port = 0; |
| 1267 | host->irq = pcidev->irq; |
| 1268 | |
| 1269 | if (hptiop_map_pci_bar(hba)) |
| 1270 | goto free_scsi_host; |
| 1271 | |
| 1272 | if (iop_wait_ready(hba->iop, 20000)) { |
| 1273 | printk(KERN_ERR "scsi%d: firmware not ready\n", |
| 1274 | hba->host->host_no); |
| 1275 | goto unmap_pci_bar; |
| 1276 | } |
| 1277 | |
| 1278 | if (iop_get_config(hba, &iop_config)) { |
| 1279 | printk(KERN_ERR "scsi%d: get config failed\n", |
| 1280 | hba->host->host_no); |
| 1281 | goto unmap_pci_bar; |
| 1282 | } |
| 1283 | |
| 1284 | hba->max_requests = min(le32_to_cpu(iop_config.max_requests), |
| 1285 | HPTIOP_MAX_REQUESTS); |
| 1286 | hba->max_devices = le32_to_cpu(iop_config.max_devices); |
| 1287 | hba->max_request_size = le32_to_cpu(iop_config.request_size); |
| 1288 | hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count); |
| 1289 | hba->firmware_version = le32_to_cpu(iop_config.firmware_version); |
| 1290 | hba->sdram_size = le32_to_cpu(iop_config.sdram_size); |
| 1291 | |
| 1292 | host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9; |
| 1293 | host->max_id = le32_to_cpu(iop_config.max_devices); |
| 1294 | host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count); |
| 1295 | host->can_queue = le32_to_cpu(iop_config.max_requests); |
| 1296 | host->cmd_per_lun = le32_to_cpu(iop_config.max_requests); |
| 1297 | host->max_cmd_len = 16; |
| 1298 | |
| 1299 | set_config.vbus_id = cpu_to_le32(host->host_no); |
| 1300 | set_config.iop_id = cpu_to_le32(host->host_no); |
| 1301 | |
| 1302 | if (iop_set_config(hba, &set_config)) { |
| 1303 | printk(KERN_ERR "scsi%d: set config failed\n", |
| 1304 | hba->host->host_no); |
| 1305 | goto unmap_pci_bar; |
| 1306 | } |
| 1307 | |
| 1308 | if (scsi_add_host(host, &pcidev->dev)) { |
| 1309 | printk(KERN_ERR "scsi%d: scsi_add_host failed\n", |
| 1310 | hba->host->host_no); |
| 1311 | goto unmap_pci_bar; |
| 1312 | } |
| 1313 | |
| 1314 | pci_set_drvdata(pcidev, host); |
| 1315 | |
| 1316 | if (request_irq(pcidev->irq, hptiop_intr, SA_SHIRQ, |
| 1317 | driver_name, hba)) { |
| 1318 | printk(KERN_ERR "scsi%d: request irq %d failed\n", |
| 1319 | hba->host->host_no, pcidev->irq); |
| 1320 | goto remove_scsi_host; |
| 1321 | } |
| 1322 | |
| 1323 | /* Allocate request mem */ |
| 1324 | req_size = sizeof(struct hpt_iop_request_scsi_command) |
| 1325 | + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1); |
| 1326 | if ((req_size& 0x1f) != 0) |
| 1327 | req_size = (req_size + 0x1f) & ~0x1f; |
| 1328 | |
| 1329 | dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests); |
| 1330 | |
| 1331 | hba->req_size = req_size; |
| 1332 | start_virt = dma_alloc_coherent(&pcidev->dev, |
| 1333 | hba->req_size*hba->max_requests + 0x20, |
| 1334 | &start_phy, GFP_KERNEL); |
| 1335 | |
| 1336 | if (!start_virt) { |
| 1337 | printk(KERN_ERR "scsi%d: fail to alloc request mem\n", |
| 1338 | hba->host->host_no); |
| 1339 | goto free_request_irq; |
| 1340 | } |
| 1341 | |
| 1342 | hba->dma_coherent = start_virt; |
| 1343 | hba->dma_coherent_handle = start_phy; |
| 1344 | |
| 1345 | if ((start_phy & 0x1f) != 0) |
| 1346 | { |
| 1347 | offset = ((start_phy + 0x1f) & ~0x1f) - start_phy; |
| 1348 | start_phy += offset; |
| 1349 | start_virt += offset; |
| 1350 | } |
| 1351 | |
| 1352 | hba->req_list = start_virt; |
| 1353 | for (i = 0; i < hba->max_requests; i++) { |
| 1354 | hba->reqs[i].next = NULL; |
| 1355 | hba->reqs[i].req_virt = start_virt; |
| 1356 | hba->reqs[i].req_shifted_phy = start_phy >> 5; |
| 1357 | hba->reqs[i].index = i; |
| 1358 | free_req(hba, &hba->reqs[i]); |
| 1359 | start_virt = (char *)start_virt + hba->req_size; |
| 1360 | start_phy = start_phy + hba->req_size; |
| 1361 | } |
| 1362 | |
| 1363 | /* Enable Interrupt and start background task */ |
| 1364 | if (hptiop_initialize_iop(hba)) |
| 1365 | goto free_request_mem; |
| 1366 | |
| 1367 | spin_lock(&hptiop_hba_list_lock); |
| 1368 | list_add_tail(&hba->link, &hptiop_hba_list); |
| 1369 | spin_unlock(&hptiop_hba_list_lock); |
| 1370 | |
| 1371 | scsi_scan_host(host); |
| 1372 | |
| 1373 | dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no); |
| 1374 | return 0; |
| 1375 | |
| 1376 | free_request_mem: |
| 1377 | dma_free_coherent(&hba->pcidev->dev, |
| 1378 | hba->req_size*hba->max_requests + 0x20, |
| 1379 | hba->dma_coherent, hba->dma_coherent_handle); |
| 1380 | |
| 1381 | free_request_irq: |
| 1382 | free_irq(hba->pcidev->irq, hba); |
| 1383 | |
| 1384 | remove_scsi_host: |
| 1385 | scsi_remove_host(host); |
| 1386 | |
| 1387 | unmap_pci_bar: |
| 1388 | iounmap(hba->iop); |
| 1389 | |
| 1390 | free_pci_regions: |
| 1391 | pci_release_regions(pcidev) ; |
| 1392 | |
| 1393 | free_scsi_host: |
| 1394 | scsi_host_put(host); |
| 1395 | |
| 1396 | disable_pci_device: |
| 1397 | pci_disable_device(pcidev); |
| 1398 | |
| 1399 | dprintk("scsi%d: hptiop_probe fail\n", host->host_no); |
| 1400 | return -ENODEV; |
| 1401 | } |
| 1402 | |
| 1403 | static void hptiop_shutdown(struct pci_dev *pcidev) |
| 1404 | { |
| 1405 | struct Scsi_Host *host = pci_get_drvdata(pcidev); |
| 1406 | struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; |
| 1407 | struct hpt_iopmu __iomem *iop = hba->iop; |
| 1408 | u32 int_mask; |
| 1409 | |
| 1410 | dprintk("hptiop_shutdown(%p)\n", hba); |
| 1411 | |
| 1412 | /* stop the iop */ |
| 1413 | if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000)) |
| 1414 | printk(KERN_ERR "scsi%d: shutdown the iop timeout\n", |
| 1415 | hba->host->host_no); |
| 1416 | |
| 1417 | /* disable all outbound interrupts */ |
| 1418 | int_mask = readl(&iop->outbound_intmask); |
| 1419 | writel(int_mask | |
| 1420 | IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE, |
| 1421 | &iop->outbound_intmask); |
| 1422 | hptiop_pci_posting_flush(iop); |
| 1423 | } |
| 1424 | |
| 1425 | static void hptiop_remove(struct pci_dev *pcidev) |
| 1426 | { |
| 1427 | struct Scsi_Host *host = pci_get_drvdata(pcidev); |
| 1428 | struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; |
| 1429 | |
| 1430 | dprintk("scsi%d: hptiop_remove\n", hba->host->host_no); |
| 1431 | |
| 1432 | spin_lock(&hptiop_hba_list_lock); |
| 1433 | list_del_init(&hba->link); |
| 1434 | spin_unlock(&hptiop_hba_list_lock); |
| 1435 | |
| 1436 | hptiop_shutdown(pcidev); |
| 1437 | |
| 1438 | free_irq(hba->pcidev->irq, hba); |
| 1439 | |
| 1440 | dma_free_coherent(&hba->pcidev->dev, |
| 1441 | hba->req_size * hba->max_requests + 0x20, |
| 1442 | hba->dma_coherent, |
| 1443 | hba->dma_coherent_handle); |
| 1444 | |
| 1445 | iounmap(hba->iop); |
| 1446 | |
| 1447 | pci_release_regions(hba->pcidev); |
| 1448 | pci_set_drvdata(hba->pcidev, NULL); |
| 1449 | pci_disable_device(hba->pcidev); |
| 1450 | |
| 1451 | scsi_remove_host(host); |
| 1452 | scsi_host_put(host); |
| 1453 | } |
| 1454 | |
| 1455 | static struct pci_device_id hptiop_id_table[] = { |
| 1456 | { PCI_DEVICE(0x1103, 0x3220) }, |
| 1457 | { PCI_DEVICE(0x1103, 0x3320) }, |
| 1458 | {}, |
| 1459 | }; |
| 1460 | |
| 1461 | MODULE_DEVICE_TABLE(pci, hptiop_id_table); |
| 1462 | |
| 1463 | static struct pci_driver hptiop_pci_driver = { |
| 1464 | .name = driver_name, |
| 1465 | .id_table = hptiop_id_table, |
| 1466 | .probe = hptiop_probe, |
| 1467 | .remove = hptiop_remove, |
| 1468 | .shutdown = hptiop_shutdown, |
| 1469 | }; |
| 1470 | |
| 1471 | static int __init hptiop_module_init(void) |
| 1472 | { |
| 1473 | int error; |
| 1474 | |
| 1475 | printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver); |
| 1476 | |
| 1477 | error = pci_register_driver(&hptiop_pci_driver); |
| 1478 | if (error < 0) |
| 1479 | return error; |
| 1480 | |
| 1481 | hptiop_cdev_major = register_chrdev(0, "hptiop", &hptiop_cdev_fops); |
| 1482 | if (hptiop_cdev_major < 0) { |
| 1483 | printk(KERN_WARNING "unable to register hptiop device.\n"); |
| 1484 | return hptiop_cdev_major; |
| 1485 | } |
| 1486 | |
| 1487 | return 0; |
| 1488 | } |
| 1489 | |
| 1490 | static void __exit hptiop_module_exit(void) |
| 1491 | { |
| 1492 | dprintk("hptiop_module_exit\n"); |
| 1493 | unregister_chrdev(hptiop_cdev_major, "hptiop"); |
| 1494 | pci_unregister_driver(&hptiop_pci_driver); |
| 1495 | } |
| 1496 | |
| 1497 | |
| 1498 | module_init(hptiop_module_init); |
| 1499 | module_exit(hptiop_module_exit); |
| 1500 | |
| 1501 | MODULE_LICENSE("GPL"); |