1 /* 2 * PMC-Sierra PM8001/8081/8088/8089 SAS/SATA based host adapters driver 3 * 4 * Copyright (c) 2008-2009 USI Co., Ltd. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification. 13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14 * substantially similar to the "NO WARRANTY" disclaimer below 15 * ("Disclaimer") and any redistribution must be conditioned upon 16 * including a substantially similar Disclaimer requirement for further 17 * binary redistribution. 18 * 3. Neither the names of the above-listed copyright holders nor the names 19 * of any contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * Alternatively, this software may be distributed under the terms of the 23 * GNU General Public License ("GPL") version 2 as published by the Free 24 * Software Foundation. 25 * 26 * NO WARRANTY 27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGES. 38 * 39 */ 40 41 #include <linux/slab.h> 42 #include "pm8001_sas.h" 43 #include "pm80xx_tracepoints.h" 44 45 /** 46 * pm8001_find_tag - from sas task to find out tag that belongs to this task 47 * @task: the task sent to the LLDD 48 * @tag: the found tag associated with the task 49 */ 50 static int pm8001_find_tag(struct sas_task *task, u32 *tag) 51 { 52 if (task->lldd_task) { 53 struct pm8001_ccb_info *ccb; 54 ccb = task->lldd_task; 55 *tag = ccb->ccb_tag; 56 return 1; 57 } 58 return 0; 59 } 60 61 /** 62 * pm8001_tag_free - free the no more needed tag 63 * @pm8001_ha: our hba struct 64 * @tag: the found tag associated with the task 65 */ 66 void pm8001_tag_free(struct pm8001_hba_info *pm8001_ha, u32 tag) 67 { 68 void *bitmap = pm8001_ha->rsvd_tags; 69 unsigned long flags; 70 71 if (tag >= PM8001_RESERVE_SLOT) 72 return; 73 74 spin_lock_irqsave(&pm8001_ha->bitmap_lock, flags); 75 __clear_bit(tag, bitmap); 76 spin_unlock_irqrestore(&pm8001_ha->bitmap_lock, flags); 77 } 78 79 /** 80 * pm8001_tag_alloc - allocate a empty tag for task used. 81 * @pm8001_ha: our hba struct 82 * @tag_out: the found empty tag . 83 */ 84 int pm8001_tag_alloc(struct pm8001_hba_info *pm8001_ha, u32 *tag_out) 85 { 86 void *bitmap = pm8001_ha->rsvd_tags; 87 unsigned long flags; 88 unsigned int tag; 89 90 spin_lock_irqsave(&pm8001_ha->bitmap_lock, flags); 91 tag = find_first_zero_bit(bitmap, PM8001_RESERVE_SLOT); 92 if (tag >= PM8001_RESERVE_SLOT) { 93 spin_unlock_irqrestore(&pm8001_ha->bitmap_lock, flags); 94 return -SAS_QUEUE_FULL; 95 } 96 __set_bit(tag, bitmap); 97 spin_unlock_irqrestore(&pm8001_ha->bitmap_lock, flags); 98 99 /* reserved tags are in the lower region of the tagset */ 100 *tag_out = tag; 101 return 0; 102 } 103 104 /** 105 * pm8001_mem_alloc - allocate memory for pm8001. 106 * @pdev: pci device. 107 * @virt_addr: the allocated virtual address 108 * @pphys_addr: DMA address for this device 109 * @pphys_addr_hi: the physical address high byte address. 110 * @pphys_addr_lo: the physical address low byte address. 111 * @mem_size: memory size. 112 * @align: requested byte alignment 113 */ 114 int pm8001_mem_alloc(struct pci_dev *pdev, void **virt_addr, 115 dma_addr_t *pphys_addr, u32 *pphys_addr_hi, 116 u32 *pphys_addr_lo, u32 mem_size, u32 align) 117 { 118 caddr_t mem_virt_alloc; 119 dma_addr_t mem_dma_handle; 120 u64 phys_align; 121 u64 align_offset = 0; 122 if (align) 123 align_offset = (dma_addr_t)align - 1; 124 mem_virt_alloc = dma_alloc_coherent(&pdev->dev, mem_size + align, 125 &mem_dma_handle, GFP_KERNEL); 126 if (!mem_virt_alloc) 127 return -ENOMEM; 128 *pphys_addr = mem_dma_handle; 129 phys_align = (*pphys_addr + align_offset) & ~align_offset; 130 *virt_addr = (void *)mem_virt_alloc + phys_align - *pphys_addr; 131 *pphys_addr_hi = upper_32_bits(phys_align); 132 *pphys_addr_lo = lower_32_bits(phys_align); 133 return 0; 134 } 135 136 /** 137 * pm8001_find_ha_by_dev - from domain device which come from sas layer to 138 * find out our hba struct. 139 * @dev: the domain device which from sas layer. 140 */ 141 static 142 struct pm8001_hba_info *pm8001_find_ha_by_dev(struct domain_device *dev) 143 { 144 struct sas_ha_struct *sha = dev->port->ha; 145 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 146 return pm8001_ha; 147 } 148 149 /** 150 * pm8001_phy_control - this function should be registered to 151 * sas_domain_function_template to provide libsas used, note: this is just 152 * control the HBA phy rather than other expander phy if you want control 153 * other phy, you should use SMP command. 154 * @sas_phy: which phy in HBA phys. 155 * @func: the operation. 156 * @funcdata: always NULL. 157 */ 158 int pm8001_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, 159 void *funcdata) 160 { 161 int rc = 0, phy_id = sas_phy->id; 162 struct pm8001_hba_info *pm8001_ha = NULL; 163 struct sas_phy_linkrates *rates; 164 struct pm8001_phy *phy; 165 DECLARE_COMPLETION_ONSTACK(completion); 166 unsigned long flags; 167 pm8001_ha = sas_phy->ha->lldd_ha; 168 phy = &pm8001_ha->phy[phy_id]; 169 170 if (PM8001_CHIP_DISP->fatal_errors(pm8001_ha)) { 171 /* 172 * If the controller is in fatal error state, 173 * we will not get a response from the controller 174 */ 175 pm8001_dbg(pm8001_ha, FAIL, 176 "Phy control failed due to fatal errors\n"); 177 return -EFAULT; 178 } 179 180 switch (func) { 181 case PHY_FUNC_SET_LINK_RATE: 182 rates = funcdata; 183 if (rates->minimum_linkrate) { 184 pm8001_ha->phy[phy_id].minimum_linkrate = 185 rates->minimum_linkrate; 186 } 187 if (rates->maximum_linkrate) { 188 pm8001_ha->phy[phy_id].maximum_linkrate = 189 rates->maximum_linkrate; 190 } 191 if (pm8001_ha->phy[phy_id].phy_state == PHY_LINK_DISABLE) { 192 pm8001_ha->phy[phy_id].enable_completion = &completion; 193 PM8001_CHIP_DISP->phy_start_req(pm8001_ha, phy_id); 194 wait_for_completion(&completion); 195 } 196 PM8001_CHIP_DISP->phy_ctl_req(pm8001_ha, phy_id, 197 PHY_LINK_RESET); 198 break; 199 case PHY_FUNC_HARD_RESET: 200 if (pm8001_ha->phy[phy_id].phy_state == PHY_LINK_DISABLE) { 201 pm8001_ha->phy[phy_id].enable_completion = &completion; 202 PM8001_CHIP_DISP->phy_start_req(pm8001_ha, phy_id); 203 wait_for_completion(&completion); 204 } 205 PM8001_CHIP_DISP->phy_ctl_req(pm8001_ha, phy_id, 206 PHY_HARD_RESET); 207 break; 208 case PHY_FUNC_LINK_RESET: 209 if (pm8001_ha->phy[phy_id].phy_state == PHY_LINK_DISABLE) { 210 pm8001_ha->phy[phy_id].enable_completion = &completion; 211 PM8001_CHIP_DISP->phy_start_req(pm8001_ha, phy_id); 212 wait_for_completion(&completion); 213 } 214 PM8001_CHIP_DISP->phy_ctl_req(pm8001_ha, phy_id, 215 PHY_LINK_RESET); 216 break; 217 case PHY_FUNC_RELEASE_SPINUP_HOLD: 218 PM8001_CHIP_DISP->phy_ctl_req(pm8001_ha, phy_id, 219 PHY_LINK_RESET); 220 break; 221 case PHY_FUNC_DISABLE: 222 if (pm8001_ha->chip_id != chip_8001) { 223 if (pm8001_ha->phy[phy_id].phy_state == 224 PHY_STATE_LINK_UP_SPCV) { 225 sas_phy_disconnected(&phy->sas_phy); 226 sas_notify_phy_event(&phy->sas_phy, 227 PHYE_LOSS_OF_SIGNAL, GFP_KERNEL); 228 phy->phy_attached = 0; 229 } 230 } else { 231 if (pm8001_ha->phy[phy_id].phy_state == 232 PHY_STATE_LINK_UP_SPC) { 233 sas_phy_disconnected(&phy->sas_phy); 234 sas_notify_phy_event(&phy->sas_phy, 235 PHYE_LOSS_OF_SIGNAL, GFP_KERNEL); 236 phy->phy_attached = 0; 237 } 238 } 239 PM8001_CHIP_DISP->phy_stop_req(pm8001_ha, phy_id); 240 break; 241 case PHY_FUNC_GET_EVENTS: 242 spin_lock_irqsave(&pm8001_ha->lock, flags); 243 if (pm8001_ha->chip_id == chip_8001) { 244 if (-1 == pm8001_bar4_shift(pm8001_ha, 245 (phy_id < 4) ? 0x30000 : 0x40000)) { 246 spin_unlock_irqrestore(&pm8001_ha->lock, flags); 247 return -EINVAL; 248 } 249 } 250 { 251 struct sas_phy *phy = sas_phy->phy; 252 u32 __iomem *qp = pm8001_ha->io_mem[2].memvirtaddr 253 + 0x1034 + (0x4000 * (phy_id & 3)); 254 255 phy->invalid_dword_count = readl(qp); 256 phy->running_disparity_error_count = readl(&qp[1]); 257 phy->loss_of_dword_sync_count = readl(&qp[3]); 258 phy->phy_reset_problem_count = readl(&qp[4]); 259 } 260 if (pm8001_ha->chip_id == chip_8001) 261 pm8001_bar4_shift(pm8001_ha, 0); 262 spin_unlock_irqrestore(&pm8001_ha->lock, flags); 263 return 0; 264 default: 265 pm8001_dbg(pm8001_ha, DEVIO, "func 0x%x\n", func); 266 rc = -EOPNOTSUPP; 267 } 268 msleep(300); 269 return rc; 270 } 271 272 /** 273 * pm8001_scan_start - we should enable all HBA phys by sending the phy_start 274 * command to HBA. 275 * @shost: the scsi host data. 276 */ 277 void pm8001_scan_start(struct Scsi_Host *shost) 278 { 279 int i; 280 struct pm8001_hba_info *pm8001_ha; 281 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 282 DECLARE_COMPLETION_ONSTACK(completion); 283 pm8001_ha = sha->lldd_ha; 284 /* SAS_RE_INITIALIZATION not available in SPCv/ve */ 285 if (pm8001_ha->chip_id == chip_8001) 286 PM8001_CHIP_DISP->sas_re_init_req(pm8001_ha); 287 for (i = 0; i < pm8001_ha->chip->n_phy; ++i) { 288 pm8001_ha->phy[i].enable_completion = &completion; 289 PM8001_CHIP_DISP->phy_start_req(pm8001_ha, i); 290 wait_for_completion(&completion); 291 msleep(300); 292 } 293 } 294 295 int pm8001_scan_finished(struct Scsi_Host *shost, unsigned long time) 296 { 297 struct sas_ha_struct *ha = SHOST_TO_SAS_HA(shost); 298 299 /* give the phy enabling interrupt event time to come in (1s 300 * is empirically about all it takes) */ 301 if (time < HZ) 302 return 0; 303 /* Wait for discovery to finish */ 304 sas_drain_work(ha); 305 return 1; 306 } 307 308 /** 309 * pm8001_task_prep_smp - the dispatcher function, prepare data for smp task 310 * @pm8001_ha: our hba card information 311 * @ccb: the ccb which attached to smp task 312 */ 313 static int pm8001_task_prep_smp(struct pm8001_hba_info *pm8001_ha, 314 struct pm8001_ccb_info *ccb) 315 { 316 return PM8001_CHIP_DISP->smp_req(pm8001_ha, ccb); 317 } 318 319 u32 pm8001_get_ncq_tag(struct sas_task *task, u32 *tag) 320 { 321 struct ata_queued_cmd *qc = task->uldd_task; 322 323 if (qc && ata_is_ncq(qc->tf.protocol)) { 324 *tag = qc->tag; 325 return 1; 326 } 327 328 return 0; 329 } 330 331 /** 332 * pm8001_task_prep_ata - the dispatcher function, prepare data for sata task 333 * @pm8001_ha: our hba card information 334 * @ccb: the ccb which attached to sata task 335 */ 336 static int pm8001_task_prep_ata(struct pm8001_hba_info *pm8001_ha, 337 struct pm8001_ccb_info *ccb) 338 { 339 return PM8001_CHIP_DISP->sata_req(pm8001_ha, ccb); 340 } 341 342 /** 343 * pm8001_task_prep_internal_abort - the dispatcher function, prepare data 344 * for internal abort task 345 * @pm8001_ha: our hba card information 346 * @ccb: the ccb which attached to sata task 347 */ 348 static int pm8001_task_prep_internal_abort(struct pm8001_hba_info *pm8001_ha, 349 struct pm8001_ccb_info *ccb) 350 { 351 return PM8001_CHIP_DISP->task_abort(pm8001_ha, ccb); 352 } 353 354 /** 355 * pm8001_task_prep_ssp_tm - the dispatcher function, prepare task management data 356 * @pm8001_ha: our hba card information 357 * @ccb: the ccb which attached to TM 358 * @tmf: the task management IU 359 */ 360 static int pm8001_task_prep_ssp_tm(struct pm8001_hba_info *pm8001_ha, 361 struct pm8001_ccb_info *ccb, struct sas_tmf_task *tmf) 362 { 363 return PM8001_CHIP_DISP->ssp_tm_req(pm8001_ha, ccb, tmf); 364 } 365 366 /** 367 * pm8001_task_prep_ssp - the dispatcher function, prepare ssp data for ssp task 368 * @pm8001_ha: our hba card information 369 * @ccb: the ccb which attached to ssp task 370 */ 371 static int pm8001_task_prep_ssp(struct pm8001_hba_info *pm8001_ha, 372 struct pm8001_ccb_info *ccb) 373 { 374 return PM8001_CHIP_DISP->ssp_io_req(pm8001_ha, ccb); 375 } 376 377 /* Find the local port id that's attached to this device */ 378 static int sas_find_local_port_id(struct domain_device *dev) 379 { 380 struct domain_device *pdev = dev->parent; 381 382 /* Directly attached device */ 383 if (!pdev) 384 return dev->port->id; 385 while (pdev) { 386 struct domain_device *pdev_p = pdev->parent; 387 if (!pdev_p) 388 return pdev->port->id; 389 pdev = pdev->parent; 390 } 391 return 0; 392 } 393 394 #define DEV_IS_GONE(pm8001_dev) \ 395 ((!pm8001_dev || (pm8001_dev->dev_type == SAS_PHY_UNUSED))) 396 397 398 static int pm8001_deliver_command(struct pm8001_hba_info *pm8001_ha, 399 struct pm8001_ccb_info *ccb) 400 { 401 struct sas_task *task = ccb->task; 402 enum sas_protocol task_proto = task->task_proto; 403 struct sas_tmf_task *tmf = task->tmf; 404 int is_tmf = !!tmf; 405 406 switch (task_proto) { 407 case SAS_PROTOCOL_SMP: 408 return pm8001_task_prep_smp(pm8001_ha, ccb); 409 case SAS_PROTOCOL_SSP: 410 if (is_tmf) 411 return pm8001_task_prep_ssp_tm(pm8001_ha, ccb, tmf); 412 return pm8001_task_prep_ssp(pm8001_ha, ccb); 413 case SAS_PROTOCOL_SATA: 414 case SAS_PROTOCOL_STP: 415 return pm8001_task_prep_ata(pm8001_ha, ccb); 416 case SAS_PROTOCOL_INTERNAL_ABORT: 417 return pm8001_task_prep_internal_abort(pm8001_ha, ccb); 418 default: 419 dev_err(pm8001_ha->dev, "unknown sas_task proto: 0x%x\n", 420 task_proto); 421 } 422 423 return -EINVAL; 424 } 425 426 /** 427 * pm8001_queue_command - register for upper layer used, all IO commands sent 428 * to HBA are from this interface. 429 * @task: the task to be execute. 430 * @gfp_flags: gfp_flags 431 */ 432 int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags) 433 { 434 struct task_status_struct *ts = &task->task_status; 435 enum sas_protocol task_proto = task->task_proto; 436 struct domain_device *dev = task->dev; 437 struct pm8001_device *pm8001_dev = dev->lldd_dev; 438 bool internal_abort = sas_is_internal_abort(task); 439 struct pm8001_hba_info *pm8001_ha; 440 struct pm8001_port *port = NULL; 441 struct pm8001_ccb_info *ccb; 442 unsigned long flags; 443 u32 n_elem = 0; 444 int rc = 0; 445 446 if (!internal_abort && !dev->port) { 447 ts->resp = SAS_TASK_UNDELIVERED; 448 ts->stat = SAS_PHY_DOWN; 449 if (dev->dev_type != SAS_SATA_DEV) 450 task->task_done(task); 451 return 0; 452 } 453 454 pm8001_ha = pm8001_find_ha_by_dev(dev); 455 if (pm8001_ha->controller_fatal_error) { 456 ts->resp = SAS_TASK_UNDELIVERED; 457 task->task_done(task); 458 return 0; 459 } 460 461 pm8001_dbg(pm8001_ha, IO, "pm8001_task_exec device\n"); 462 463 spin_lock_irqsave(&pm8001_ha->lock, flags); 464 465 pm8001_dev = dev->lldd_dev; 466 port = &pm8001_ha->port[sas_find_local_port_id(dev)]; 467 468 if (!internal_abort && 469 (DEV_IS_GONE(pm8001_dev) || !port->port_attached)) { 470 ts->resp = SAS_TASK_UNDELIVERED; 471 ts->stat = SAS_PHY_DOWN; 472 if (sas_protocol_ata(task_proto)) { 473 spin_unlock_irqrestore(&pm8001_ha->lock, flags); 474 task->task_done(task); 475 spin_lock_irqsave(&pm8001_ha->lock, flags); 476 } else { 477 task->task_done(task); 478 } 479 rc = -ENODEV; 480 goto err_out; 481 } 482 483 ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_dev, task); 484 if (!ccb) { 485 rc = -SAS_QUEUE_FULL; 486 goto err_out; 487 } 488 489 if (!sas_protocol_ata(task_proto)) { 490 if (task->num_scatter) { 491 n_elem = dma_map_sg(pm8001_ha->dev, task->scatter, 492 task->num_scatter, task->data_dir); 493 if (!n_elem) { 494 rc = -ENOMEM; 495 goto err_out_ccb; 496 } 497 } 498 } else { 499 n_elem = task->num_scatter; 500 } 501 502 task->lldd_task = ccb; 503 ccb->n_elem = n_elem; 504 505 atomic_inc(&pm8001_dev->running_req); 506 507 rc = pm8001_deliver_command(pm8001_ha, ccb); 508 if (rc) { 509 atomic_dec(&pm8001_dev->running_req); 510 if (!sas_protocol_ata(task_proto) && n_elem) 511 dma_unmap_sg(pm8001_ha->dev, task->scatter, 512 task->num_scatter, task->data_dir); 513 err_out_ccb: 514 pm8001_ccb_free(pm8001_ha, ccb); 515 516 err_out: 517 pm8001_dbg(pm8001_ha, IO, "pm8001_task_exec failed[%d]!\n", rc); 518 } 519 520 spin_unlock_irqrestore(&pm8001_ha->lock, flags); 521 522 return rc; 523 } 524 525 /** 526 * pm8001_ccb_task_free - free the sg for ssp and smp command, free the ccb. 527 * @pm8001_ha: our hba card information 528 * @ccb: the ccb which attached to ssp task to free 529 */ 530 void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha, 531 struct pm8001_ccb_info *ccb) 532 { 533 struct sas_task *task = ccb->task; 534 struct ata_queued_cmd *qc; 535 struct pm8001_device *pm8001_dev; 536 537 if (!task) 538 return; 539 540 if (!sas_protocol_ata(task->task_proto) && ccb->n_elem) 541 dma_unmap_sg(pm8001_ha->dev, task->scatter, 542 task->num_scatter, task->data_dir); 543 544 switch (task->task_proto) { 545 case SAS_PROTOCOL_SMP: 546 dma_unmap_sg(pm8001_ha->dev, &task->smp_task.smp_resp, 1, 547 DMA_FROM_DEVICE); 548 dma_unmap_sg(pm8001_ha->dev, &task->smp_task.smp_req, 1, 549 DMA_TO_DEVICE); 550 break; 551 552 case SAS_PROTOCOL_SATA: 553 case SAS_PROTOCOL_STP: 554 case SAS_PROTOCOL_SSP: 555 default: 556 /* do nothing */ 557 break; 558 } 559 560 if (sas_protocol_ata(task->task_proto)) { 561 /* For SCSI/ATA commands uldd_task points to ata_queued_cmd */ 562 qc = task->uldd_task; 563 pm8001_dev = ccb->device; 564 trace_pm80xx_request_complete(pm8001_ha->id, 565 pm8001_dev ? pm8001_dev->attached_phy : PM8001_MAX_PHYS, 566 ccb->ccb_tag, 0 /* ctlr_opcode not known */, 567 qc ? qc->tf.command : 0, // ata opcode 568 pm8001_dev ? atomic_read(&pm8001_dev->running_req) : -1); 569 } 570 571 task->lldd_task = NULL; 572 pm8001_ccb_free(pm8001_ha, ccb); 573 } 574 575 static void pm8001_init_dev(struct pm8001_device *pm8001_dev, int id) 576 { 577 pm8001_dev->id = id; 578 pm8001_dev->device_id = PM8001_MAX_DEVICES; 579 atomic_set(&pm8001_dev->running_req, 0); 580 } 581 582 /** 583 * pm8001_alloc_dev - find a empty pm8001_device 584 * @pm8001_ha: our hba card information 585 */ 586 static struct pm8001_device *pm8001_alloc_dev(struct pm8001_hba_info *pm8001_ha) 587 { 588 u32 dev; 589 for (dev = 0; dev < PM8001_MAX_DEVICES; dev++) { 590 struct pm8001_device *pm8001_dev = &pm8001_ha->devices[dev]; 591 592 if (pm8001_dev->dev_type == SAS_PHY_UNUSED) { 593 pm8001_init_dev(pm8001_dev, dev); 594 return pm8001_dev; 595 } 596 } 597 if (dev == PM8001_MAX_DEVICES) { 598 pm8001_dbg(pm8001_ha, FAIL, 599 "max support %d devices, ignore ..\n", 600 PM8001_MAX_DEVICES); 601 } 602 return NULL; 603 } 604 /** 605 * pm8001_find_dev - find a matching pm8001_device 606 * @pm8001_ha: our hba card information 607 * @device_id: device ID to match against 608 */ 609 struct pm8001_device *pm8001_find_dev(struct pm8001_hba_info *pm8001_ha, 610 u32 device_id) 611 { 612 u32 dev; 613 for (dev = 0; dev < PM8001_MAX_DEVICES; dev++) { 614 if (pm8001_ha->devices[dev].device_id == device_id) 615 return &pm8001_ha->devices[dev]; 616 } 617 if (dev == PM8001_MAX_DEVICES) { 618 pm8001_dbg(pm8001_ha, FAIL, "NO MATCHING DEVICE FOUND !!!\n"); 619 } 620 return NULL; 621 } 622 623 void pm8001_free_dev(struct pm8001_device *pm8001_dev) 624 { 625 memset(pm8001_dev, 0, sizeof(*pm8001_dev)); 626 pm8001_dev->dev_type = SAS_PHY_UNUSED; 627 pm8001_dev->device_id = PM8001_MAX_DEVICES; 628 pm8001_dev->sas_device = NULL; 629 } 630 631 /** 632 * pm8001_dev_found_notify - libsas notify a device is found. 633 * @dev: the device structure which sas layer used. 634 * 635 * when libsas find a sas domain device, it should tell the LLDD that 636 * device is found, and then LLDD register this device to HBA firmware 637 * by the command "OPC_INB_REG_DEV", after that the HBA will assign a 638 * device ID(according to device's sas address) and returned it to LLDD. From 639 * now on, we communicate with HBA FW with the device ID which HBA assigned 640 * rather than sas address. it is the necessary step for our HBA but it is 641 * the optional for other HBA driver. 642 */ 643 static int pm8001_dev_found_notify(struct domain_device *dev) 644 { 645 unsigned long flags = 0; 646 int res = 0; 647 struct pm8001_hba_info *pm8001_ha = NULL; 648 struct domain_device *parent_dev = dev->parent; 649 struct pm8001_device *pm8001_device; 650 DECLARE_COMPLETION_ONSTACK(completion); 651 u32 flag = 0; 652 pm8001_ha = pm8001_find_ha_by_dev(dev); 653 spin_lock_irqsave(&pm8001_ha->lock, flags); 654 655 pm8001_device = pm8001_alloc_dev(pm8001_ha); 656 if (!pm8001_device) { 657 res = -1; 658 goto found_out; 659 } 660 pm8001_device->sas_device = dev; 661 dev->lldd_dev = pm8001_device; 662 pm8001_device->dev_type = dev->dev_type; 663 pm8001_device->dcompletion = &completion; 664 if (parent_dev && dev_is_expander(parent_dev->dev_type)) { 665 int phy_id; 666 667 phy_id = sas_find_attached_phy_id(&parent_dev->ex_dev, dev); 668 if (phy_id < 0) { 669 pm8001_dbg(pm8001_ha, FAIL, 670 "Error: no attached dev:%016llx at ex:%016llx.\n", 671 SAS_ADDR(dev->sas_addr), 672 SAS_ADDR(parent_dev->sas_addr)); 673 res = phy_id; 674 } else { 675 pm8001_device->attached_phy = phy_id; 676 } 677 } else { 678 if (dev->dev_type == SAS_SATA_DEV) { 679 pm8001_device->attached_phy = 680 dev->rphy->identify.phy_identifier; 681 flag = 1; /* directly sata */ 682 } 683 } /*register this device to HBA*/ 684 pm8001_dbg(pm8001_ha, DISC, "Found device\n"); 685 PM8001_CHIP_DISP->reg_dev_req(pm8001_ha, pm8001_device, flag); 686 spin_unlock_irqrestore(&pm8001_ha->lock, flags); 687 wait_for_completion(&completion); 688 if (dev->dev_type == SAS_END_DEVICE) 689 msleep(50); 690 pm8001_ha->flags = PM8001F_RUN_TIME; 691 return 0; 692 found_out: 693 spin_unlock_irqrestore(&pm8001_ha->lock, flags); 694 return res; 695 } 696 697 int pm8001_dev_found(struct domain_device *dev) 698 { 699 return pm8001_dev_found_notify(dev); 700 } 701 702 #define PM8001_TASK_TIMEOUT 20 703 704 /** 705 * pm8001_dev_gone_notify - see the comments for "pm8001_dev_found_notify" 706 * @dev: the device structure which sas layer used. 707 */ 708 static void pm8001_dev_gone_notify(struct domain_device *dev) 709 { 710 unsigned long flags = 0; 711 struct pm8001_hba_info *pm8001_ha; 712 struct pm8001_device *pm8001_dev = dev->lldd_dev; 713 714 pm8001_ha = pm8001_find_ha_by_dev(dev); 715 spin_lock_irqsave(&pm8001_ha->lock, flags); 716 if (pm8001_dev) { 717 u32 device_id = pm8001_dev->device_id; 718 719 pm8001_dbg(pm8001_ha, DISC, "found dev[%d:%x] is gone.\n", 720 pm8001_dev->device_id, pm8001_dev->dev_type); 721 if (atomic_read(&pm8001_dev->running_req)) { 722 spin_unlock_irqrestore(&pm8001_ha->lock, flags); 723 sas_execute_internal_abort_dev(dev, 0, NULL); 724 while (atomic_read(&pm8001_dev->running_req)) 725 msleep(20); 726 spin_lock_irqsave(&pm8001_ha->lock, flags); 727 } 728 PM8001_CHIP_DISP->dereg_dev_req(pm8001_ha, device_id); 729 pm8001_free_dev(pm8001_dev); 730 } else { 731 pm8001_dbg(pm8001_ha, DISC, "Found dev has gone.\n"); 732 } 733 dev->lldd_dev = NULL; 734 spin_unlock_irqrestore(&pm8001_ha->lock, flags); 735 } 736 737 void pm8001_dev_gone(struct domain_device *dev) 738 { 739 pm8001_dev_gone_notify(dev); 740 } 741 742 /* retry commands by ha, by task and/or by device */ 743 void pm8001_open_reject_retry( 744 struct pm8001_hba_info *pm8001_ha, 745 struct sas_task *task_to_close, 746 struct pm8001_device *device_to_close) 747 { 748 int i; 749 unsigned long flags; 750 751 if (pm8001_ha == NULL) 752 return; 753 754 spin_lock_irqsave(&pm8001_ha->lock, flags); 755 756 for (i = 0; i < PM8001_MAX_CCB; i++) { 757 struct sas_task *task; 758 struct task_status_struct *ts; 759 struct pm8001_device *pm8001_dev; 760 unsigned long flags1; 761 struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[i]; 762 763 if (ccb->ccb_tag == PM8001_INVALID_TAG) 764 continue; 765 766 pm8001_dev = ccb->device; 767 if (!pm8001_dev || (pm8001_dev->dev_type == SAS_PHY_UNUSED)) 768 continue; 769 if (!device_to_close) { 770 uintptr_t d = (uintptr_t)pm8001_dev 771 - (uintptr_t)&pm8001_ha->devices; 772 if (((d % sizeof(*pm8001_dev)) != 0) 773 || ((d / sizeof(*pm8001_dev)) >= PM8001_MAX_DEVICES)) 774 continue; 775 } else if (pm8001_dev != device_to_close) 776 continue; 777 task = ccb->task; 778 if (!task || !task->task_done) 779 continue; 780 if (task_to_close && (task != task_to_close)) 781 continue; 782 ts = &task->task_status; 783 ts->resp = SAS_TASK_COMPLETE; 784 /* Force the midlayer to retry */ 785 ts->stat = SAS_OPEN_REJECT; 786 ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; 787 if (pm8001_dev) 788 atomic_dec(&pm8001_dev->running_req); 789 spin_lock_irqsave(&task->task_state_lock, flags1); 790 task->task_state_flags &= ~SAS_TASK_STATE_PENDING; 791 task->task_state_flags |= SAS_TASK_STATE_DONE; 792 if (unlikely((task->task_state_flags 793 & SAS_TASK_STATE_ABORTED))) { 794 spin_unlock_irqrestore(&task->task_state_lock, 795 flags1); 796 pm8001_ccb_task_free(pm8001_ha, ccb); 797 } else { 798 spin_unlock_irqrestore(&task->task_state_lock, 799 flags1); 800 pm8001_ccb_task_free(pm8001_ha, ccb); 801 mb();/* in order to force CPU ordering */ 802 spin_unlock_irqrestore(&pm8001_ha->lock, flags); 803 task->task_done(task); 804 spin_lock_irqsave(&pm8001_ha->lock, flags); 805 } 806 } 807 808 spin_unlock_irqrestore(&pm8001_ha->lock, flags); 809 } 810 811 /** 812 * pm8001_I_T_nexus_reset() - reset the initiator/target connection 813 * @dev: the device structure for the device to reset. 814 * 815 * Standard mandates link reset for ATA (type 0) and hard reset for 816 * SSP (type 1), only for RECOVERY 817 */ 818 int pm8001_I_T_nexus_reset(struct domain_device *dev) 819 { 820 int rc = TMF_RESP_FUNC_FAILED; 821 struct pm8001_device *pm8001_dev; 822 struct pm8001_hba_info *pm8001_ha; 823 struct sas_phy *phy; 824 825 if (!dev || !dev->lldd_dev) 826 return -ENODEV; 827 828 pm8001_dev = dev->lldd_dev; 829 pm8001_ha = pm8001_find_ha_by_dev(dev); 830 phy = sas_get_local_phy(dev); 831 832 if (dev_is_sata(dev)) { 833 if (scsi_is_sas_phy_local(phy)) { 834 rc = 0; 835 goto out; 836 } 837 rc = sas_phy_reset(phy, 1); 838 if (rc) { 839 pm8001_dbg(pm8001_ha, EH, 840 "phy reset failed for device %x\n" 841 "with rc %d\n", pm8001_dev->device_id, rc); 842 rc = TMF_RESP_FUNC_FAILED; 843 goto out; 844 } 845 msleep(2000); 846 rc = sas_execute_internal_abort_dev(dev, 0, NULL); 847 if (rc) { 848 pm8001_dbg(pm8001_ha, EH, "task abort failed %x\n" 849 "with rc %d\n", pm8001_dev->device_id, rc); 850 rc = TMF_RESP_FUNC_FAILED; 851 } 852 } else { 853 rc = sas_phy_reset(phy, 1); 854 msleep(2000); 855 } 856 pm8001_dbg(pm8001_ha, EH, " for device[%x]:rc=%d\n", 857 pm8001_dev->device_id, rc); 858 out: 859 sas_put_local_phy(phy); 860 return rc; 861 } 862 863 /* 864 * This function handle the IT_NEXUS_XXX event or completion 865 * status code for SSP/SATA/SMP I/O request. 866 */ 867 int pm8001_I_T_nexus_event_handler(struct domain_device *dev) 868 { 869 int rc = TMF_RESP_FUNC_FAILED; 870 struct pm8001_device *pm8001_dev; 871 struct pm8001_hba_info *pm8001_ha; 872 struct sas_phy *phy; 873 874 if (!dev || !dev->lldd_dev) 875 return -1; 876 877 pm8001_dev = dev->lldd_dev; 878 pm8001_ha = pm8001_find_ha_by_dev(dev); 879 880 pm8001_dbg(pm8001_ha, EH, "I_T_Nexus handler invoked !!\n"); 881 882 phy = sas_get_local_phy(dev); 883 884 if (dev_is_sata(dev)) { 885 DECLARE_COMPLETION_ONSTACK(completion_setstate); 886 if (scsi_is_sas_phy_local(phy)) { 887 rc = 0; 888 goto out; 889 } 890 /* send internal ssp/sata/smp abort command to FW */ 891 sas_execute_internal_abort_dev(dev, 0, NULL); 892 msleep(100); 893 894 /* deregister the target device */ 895 pm8001_dev_gone_notify(dev); 896 msleep(200); 897 898 /*send phy reset to hard reset target */ 899 rc = sas_phy_reset(phy, 1); 900 msleep(2000); 901 pm8001_dev->setds_completion = &completion_setstate; 902 903 wait_for_completion(&completion_setstate); 904 } else { 905 /* send internal ssp/sata/smp abort command to FW */ 906 sas_execute_internal_abort_dev(dev, 0, NULL); 907 msleep(100); 908 909 /* deregister the target device */ 910 pm8001_dev_gone_notify(dev); 911 msleep(200); 912 913 /*send phy reset to hard reset target */ 914 rc = sas_phy_reset(phy, 1); 915 msleep(2000); 916 } 917 pm8001_dbg(pm8001_ha, EH, " for device[%x]:rc=%d\n", 918 pm8001_dev->device_id, rc); 919 out: 920 sas_put_local_phy(phy); 921 922 return rc; 923 } 924 /* mandatory SAM-3, the task reset the specified LUN*/ 925 int pm8001_lu_reset(struct domain_device *dev, u8 *lun) 926 { 927 int rc = TMF_RESP_FUNC_FAILED; 928 struct pm8001_device *pm8001_dev = dev->lldd_dev; 929 struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev); 930 DECLARE_COMPLETION_ONSTACK(completion_setstate); 931 932 if (PM8001_CHIP_DISP->fatal_errors(pm8001_ha)) { 933 /* 934 * If the controller is in fatal error state, 935 * we will not get a response from the controller 936 */ 937 pm8001_dbg(pm8001_ha, FAIL, 938 "LUN reset failed due to fatal errors\n"); 939 return rc; 940 } 941 942 if (dev_is_sata(dev)) { 943 struct sas_phy *phy = sas_get_local_phy(dev); 944 sas_execute_internal_abort_dev(dev, 0, NULL); 945 rc = sas_phy_reset(phy, 1); 946 sas_put_local_phy(phy); 947 pm8001_dev->setds_completion = &completion_setstate; 948 rc = PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha, 949 pm8001_dev, DS_OPERATIONAL); 950 wait_for_completion(&completion_setstate); 951 } else { 952 rc = sas_lu_reset(dev, lun); 953 } 954 /* If failed, fall-through I_T_Nexus reset */ 955 pm8001_dbg(pm8001_ha, EH, "for device[%x]:rc=%d\n", 956 pm8001_dev->device_id, rc); 957 return rc; 958 } 959 960 /* optional SAM-3 */ 961 int pm8001_query_task(struct sas_task *task) 962 { 963 u32 tag = 0xdeadbeef; 964 int rc = TMF_RESP_FUNC_FAILED; 965 if (unlikely(!task || !task->lldd_task || !task->dev)) 966 return rc; 967 968 if (task->task_proto & SAS_PROTOCOL_SSP) { 969 struct scsi_cmnd *cmnd = task->uldd_task; 970 struct domain_device *dev = task->dev; 971 struct pm8001_hba_info *pm8001_ha = 972 pm8001_find_ha_by_dev(dev); 973 974 rc = pm8001_find_tag(task, &tag); 975 if (rc == 0) { 976 rc = TMF_RESP_FUNC_FAILED; 977 return rc; 978 } 979 pm8001_dbg(pm8001_ha, EH, "Query:[%16ph]\n", cmnd->cmnd); 980 981 rc = sas_query_task(task, tag); 982 switch (rc) { 983 /* The task is still in Lun, release it then */ 984 case TMF_RESP_FUNC_SUCC: 985 pm8001_dbg(pm8001_ha, EH, 986 "The task is still in Lun\n"); 987 break; 988 /* The task is not in Lun or failed, reset the phy */ 989 case TMF_RESP_FUNC_FAILED: 990 case TMF_RESP_FUNC_COMPLETE: 991 pm8001_dbg(pm8001_ha, EH, 992 "The task is not in Lun or failed, reset the phy\n"); 993 break; 994 } 995 } 996 pr_err("pm80xx: rc= %d\n", rc); 997 return rc; 998 } 999 1000 /* mandatory SAM-3, still need free task/ccb info, abort the specified task */ 1001 int pm8001_abort_task(struct sas_task *task) 1002 { 1003 struct pm8001_ccb_info *ccb = task->lldd_task; 1004 unsigned long flags; 1005 u32 tag; 1006 struct domain_device *dev ; 1007 struct pm8001_hba_info *pm8001_ha; 1008 struct pm8001_device *pm8001_dev; 1009 int rc = TMF_RESP_FUNC_FAILED, ret; 1010 u32 phy_id, port_id; 1011 struct sas_task_slow slow_task; 1012 1013 if (!task->lldd_task || !task->dev) 1014 return TMF_RESP_FUNC_FAILED; 1015 1016 dev = task->dev; 1017 pm8001_dev = dev->lldd_dev; 1018 pm8001_ha = pm8001_find_ha_by_dev(dev); 1019 phy_id = pm8001_dev->attached_phy; 1020 1021 if (PM8001_CHIP_DISP->fatal_errors(pm8001_ha)) { 1022 // If the controller is seeing fatal errors 1023 // abort task will not get a response from the controller 1024 return TMF_RESP_FUNC_FAILED; 1025 } 1026 1027 ret = pm8001_find_tag(task, &tag); 1028 if (ret == 0) { 1029 pm8001_info(pm8001_ha, "no tag for task:%p\n", task); 1030 return TMF_RESP_FUNC_FAILED; 1031 } 1032 spin_lock_irqsave(&task->task_state_lock, flags); 1033 if (task->task_state_flags & SAS_TASK_STATE_DONE) { 1034 spin_unlock_irqrestore(&task->task_state_lock, flags); 1035 return TMF_RESP_FUNC_COMPLETE; 1036 } 1037 task->task_state_flags |= SAS_TASK_STATE_ABORTED; 1038 if (task->slow_task == NULL) { 1039 init_completion(&slow_task.completion); 1040 task->slow_task = &slow_task; 1041 } 1042 spin_unlock_irqrestore(&task->task_state_lock, flags); 1043 if (task->task_proto & SAS_PROTOCOL_SSP) { 1044 rc = sas_abort_task(task, tag); 1045 sas_execute_internal_abort_single(dev, tag, 0, NULL); 1046 } else if (task->task_proto & SAS_PROTOCOL_SATA || 1047 task->task_proto & SAS_PROTOCOL_STP) { 1048 if (pm8001_ha->chip_id == chip_8006) { 1049 DECLARE_COMPLETION_ONSTACK(completion_reset); 1050 DECLARE_COMPLETION_ONSTACK(completion); 1051 struct pm8001_phy *phy = pm8001_ha->phy + phy_id; 1052 port_id = phy->port->port_id; 1053 1054 /* 1. Set Device state as Recovery */ 1055 pm8001_dev->setds_completion = &completion; 1056 PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha, 1057 pm8001_dev, DS_IN_RECOVERY); 1058 wait_for_completion(&completion); 1059 1060 /* 2. Send Phy Control Hard Reset */ 1061 reinit_completion(&completion); 1062 phy->port_reset_status = PORT_RESET_TMO; 1063 phy->reset_success = false; 1064 phy->enable_completion = &completion; 1065 phy->reset_completion = &completion_reset; 1066 ret = PM8001_CHIP_DISP->phy_ctl_req(pm8001_ha, phy_id, 1067 PHY_HARD_RESET); 1068 if (ret) { 1069 phy->enable_completion = NULL; 1070 phy->reset_completion = NULL; 1071 goto out; 1072 } 1073 1074 /* In the case of the reset timeout/fail we still 1075 * abort the command at the firmware. The assumption 1076 * here is that the drive is off doing something so 1077 * that it's not processing requests, and we want to 1078 * avoid getting a completion for this and either 1079 * leaking the task in libsas or losing the race and 1080 * getting a double free. 1081 */ 1082 pm8001_dbg(pm8001_ha, MSG, 1083 "Waiting for local phy ctl\n"); 1084 ret = wait_for_completion_timeout(&completion, 1085 PM8001_TASK_TIMEOUT * HZ); 1086 if (!ret || !phy->reset_success) { 1087 phy->enable_completion = NULL; 1088 phy->reset_completion = NULL; 1089 } else { 1090 /* 3. Wait for Port Reset complete or 1091 * Port reset TMO 1092 */ 1093 pm8001_dbg(pm8001_ha, MSG, 1094 "Waiting for Port reset\n"); 1095 ret = wait_for_completion_timeout( 1096 &completion_reset, 1097 PM8001_TASK_TIMEOUT * HZ); 1098 if (!ret) 1099 phy->reset_completion = NULL; 1100 WARN_ON(phy->port_reset_status == 1101 PORT_RESET_TMO); 1102 if (phy->port_reset_status == PORT_RESET_TMO) { 1103 pm8001_dev_gone_notify(dev); 1104 PM8001_CHIP_DISP->hw_event_ack_req( 1105 pm8001_ha, 0, 1106 0x07, /*HW_EVENT_PHY_DOWN ack*/ 1107 port_id, phy_id, 0, 0); 1108 goto out; 1109 } 1110 } 1111 1112 /* 1113 * 4. SATA Abort ALL 1114 * we wait for the task to be aborted so that the task 1115 * is removed from the ccb. on success the caller is 1116 * going to free the task. 1117 */ 1118 ret = sas_execute_internal_abort_dev(dev, 0, NULL); 1119 if (ret) 1120 goto out; 1121 ret = wait_for_completion_timeout( 1122 &task->slow_task->completion, 1123 PM8001_TASK_TIMEOUT * HZ); 1124 if (!ret) 1125 goto out; 1126 1127 /* 5. Set Device State as Operational */ 1128 reinit_completion(&completion); 1129 pm8001_dev->setds_completion = &completion; 1130 PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha, 1131 pm8001_dev, DS_OPERATIONAL); 1132 wait_for_completion(&completion); 1133 } else { 1134 /* 1135 * Ensure that if we see a completion for the ccb 1136 * associated with the task which we are trying to 1137 * abort then we should not touch the sas_task as it 1138 * may race with libsas freeing it when return here. 1139 */ 1140 ccb->task = NULL; 1141 ret = sas_execute_internal_abort_single(dev, tag, 0, NULL); 1142 } 1143 rc = TMF_RESP_FUNC_COMPLETE; 1144 } else if (task->task_proto & SAS_PROTOCOL_SMP) { 1145 /* SMP */ 1146 rc = sas_execute_internal_abort_single(dev, tag, 0, NULL); 1147 1148 } 1149 out: 1150 spin_lock_irqsave(&task->task_state_lock, flags); 1151 if (task->slow_task == &slow_task) 1152 task->slow_task = NULL; 1153 spin_unlock_irqrestore(&task->task_state_lock, flags); 1154 if (rc != TMF_RESP_FUNC_COMPLETE) 1155 pm8001_info(pm8001_ha, "rc= %d\n", rc); 1156 return rc; 1157 } 1158 1159 int pm8001_clear_task_set(struct domain_device *dev, u8 *lun) 1160 { 1161 struct pm8001_device *pm8001_dev = dev->lldd_dev; 1162 struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev); 1163 1164 pm8001_dbg(pm8001_ha, EH, "I_T_L_Q clear task set[%x]\n", 1165 pm8001_dev->device_id); 1166 return sas_clear_task_set(dev, lun); 1167 } 1168 1169 void pm8001_port_formed(struct asd_sas_phy *sas_phy) 1170 { 1171 struct sas_ha_struct *sas_ha = sas_phy->ha; 1172 struct pm8001_hba_info *pm8001_ha = sas_ha->lldd_ha; 1173 struct pm8001_phy *phy = sas_phy->lldd_phy; 1174 struct asd_sas_port *sas_port = sas_phy->port; 1175 struct pm8001_port *port = phy->port; 1176 1177 if (!sas_port) { 1178 pm8001_dbg(pm8001_ha, FAIL, "Received null port\n"); 1179 return; 1180 } 1181 sas_port->lldd_port = port; 1182 } 1183 1184 void pm8001_setds_completion(struct domain_device *dev) 1185 { 1186 struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev); 1187 struct pm8001_device *pm8001_dev = dev->lldd_dev; 1188 DECLARE_COMPLETION_ONSTACK(completion_setstate); 1189 1190 if (pm8001_ha->chip_id != chip_8001) { 1191 pm8001_dev->setds_completion = &completion_setstate; 1192 PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha, 1193 pm8001_dev, DS_OPERATIONAL); 1194 wait_for_completion(&completion_setstate); 1195 } 1196 } 1197 1198 void pm8001_tmf_aborted(struct sas_task *task) 1199 { 1200 struct pm8001_ccb_info *ccb = task->lldd_task; 1201 1202 if (ccb) 1203 ccb->task = NULL; 1204 } 1205