1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * SAS host prototypes and structures header file 4 * 5 * Copyright (C) 2005 Adaptec, Inc. All rights reserved. 6 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com> 7 */ 8 9 #ifndef _LIBSAS_H_ 10 #define _LIBSAS_H_ 11 12 13 #include <linux/timer.h> 14 #include <linux/pci.h> 15 #include <scsi/sas.h> 16 #include <linux/libata.h> 17 #include <linux/list.h> 18 #include <scsi/scsi_device.h> 19 #include <scsi/scsi_cmnd.h> 20 #include <scsi/scsi_transport_sas.h> 21 #include <linux/scatterlist.h> 22 #include <linux/slab.h> 23 24 struct block_device; 25 26 enum sas_phy_role { 27 PHY_ROLE_NONE = 0, 28 PHY_ROLE_TARGET = 0x40, 29 PHY_ROLE_INITIATOR = 0x80, 30 }; 31 32 /* The events are mnemonically described in sas_dump.c 33 * so when updating/adding events here, please also 34 * update the other file too. 35 */ 36 enum port_event { 37 PORTE_BYTES_DMAED = 0U, 38 PORTE_BROADCAST_RCVD, 39 PORTE_LINK_RESET_ERR, 40 PORTE_TIMER_EVENT, 41 PORTE_HARD_RESET, 42 PORT_NUM_EVENTS, 43 }; 44 45 enum phy_event { 46 PHYE_LOSS_OF_SIGNAL = 0U, 47 PHYE_OOB_DONE, 48 PHYE_OOB_ERROR, 49 PHYE_SPINUP_HOLD, /* hot plug SATA, no COMWAKE sent */ 50 PHYE_RESUME_TIMEOUT, 51 PHYE_SHUTDOWN, 52 PHY_NUM_EVENTS, 53 }; 54 55 enum discover_event { 56 DISCE_DISCOVER_DOMAIN = 0U, 57 DISCE_REVALIDATE_DOMAIN, 58 DISCE_SUSPEND, 59 DISCE_RESUME, 60 DISC_NUM_EVENTS, 61 }; 62 63 /* ---------- Expander Devices ---------- */ 64 65 #define to_dom_device(_obj) container_of(_obj, struct domain_device, dev_obj) 66 #define to_dev_attr(_attr) container_of(_attr, struct domain_dev_attribute,\ 67 attr) 68 69 enum routing_attribute { 70 DIRECT_ROUTING, 71 SUBTRACTIVE_ROUTING, 72 TABLE_ROUTING, 73 }; 74 75 enum ex_phy_state { 76 PHY_EMPTY, 77 PHY_VACANT, 78 PHY_NOT_PRESENT, 79 PHY_DEVICE_DISCOVERED 80 }; 81 82 struct ex_phy { 83 int phy_id; 84 85 enum ex_phy_state phy_state; 86 87 enum sas_device_type attached_dev_type; 88 enum sas_linkrate linkrate; 89 90 u8 attached_sata_host:1; 91 u8 attached_sata_dev:1; 92 u8 attached_sata_ps:1; 93 94 enum sas_protocol attached_tproto; 95 enum sas_protocol attached_iproto; 96 97 u8 attached_sas_addr[SAS_ADDR_SIZE]; 98 u8 attached_phy_id; 99 100 int phy_change_count; 101 enum routing_attribute routing_attr; 102 u8 virtual:1; 103 104 int last_da_index; 105 106 struct sas_phy *phy; 107 struct sas_port *port; 108 }; 109 110 struct expander_device { 111 struct list_head children; 112 113 int ex_change_count; 114 u16 max_route_indexes; 115 u8 num_phys; 116 117 u8 t2t_supp:1; 118 u8 configuring:1; 119 u8 conf_route_table:1; 120 121 u8 enclosure_logical_id[8]; 122 123 struct ex_phy *ex_phy; 124 struct sas_port *parent_port; 125 126 struct mutex cmd_mutex; 127 }; 128 129 /* ---------- SATA device ---------- */ 130 #define ATA_RESP_FIS_SIZE 24 131 132 struct sata_device { 133 unsigned int class; 134 u8 port_no; /* port number, if this is a PM (Port) */ 135 136 struct ata_port *ap; 137 struct ata_host *ata_host; 138 struct smp_rps_resp rps_resp ____cacheline_aligned; /* report_phy_sata_resp */ 139 u8 fis[ATA_RESP_FIS_SIZE]; 140 }; 141 142 struct ssp_device { 143 struct list_head eh_list_node; /* pending a user requested eh action */ 144 struct scsi_lun reset_lun; 145 }; 146 147 enum { 148 SAS_DEV_GONE, 149 SAS_DEV_FOUND, /* device notified to lldd */ 150 SAS_DEV_DESTROY, 151 SAS_DEV_EH_PENDING, 152 SAS_DEV_LU_RESET, 153 SAS_DEV_RESET, 154 }; 155 156 struct domain_device { 157 spinlock_t done_lock; 158 enum sas_device_type dev_type; 159 160 enum sas_linkrate linkrate; 161 enum sas_linkrate min_linkrate; 162 enum sas_linkrate max_linkrate; 163 164 int pathways; 165 166 struct domain_device *parent; 167 struct list_head siblings; /* devices on the same level */ 168 struct asd_sas_port *port; /* shortcut to root of the tree */ 169 struct sas_phy *phy; 170 171 struct list_head dev_list_node; 172 struct list_head disco_list_node; /* awaiting probe or destruct */ 173 174 enum sas_protocol iproto; 175 enum sas_protocol tproto; 176 177 struct sas_rphy *rphy; 178 179 u8 sas_addr[SAS_ADDR_SIZE]; 180 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE]; 181 182 u8 frame_rcvd[32]; 183 184 union { 185 struct expander_device ex_dev; 186 struct sata_device sata_dev; /* STP & directly attached */ 187 struct ssp_device ssp_dev; 188 }; 189 190 void *lldd_dev; 191 unsigned long state; 192 struct kref kref; 193 }; 194 195 struct sas_work { 196 struct list_head drain_node; 197 struct work_struct work; 198 }; 199 200 static inline bool dev_is_expander(enum sas_device_type type) 201 { 202 return type == SAS_EDGE_EXPANDER_DEVICE || 203 type == SAS_FANOUT_EXPANDER_DEVICE; 204 } 205 206 static inline bool dev_parent_is_expander(struct domain_device *dev) 207 { 208 if (!dev->parent) 209 return false; 210 211 return dev_is_expander(dev->parent->dev_type); 212 } 213 214 static inline void INIT_SAS_WORK(struct sas_work *sw, void (*fn)(struct work_struct *)) 215 { 216 INIT_WORK(&sw->work, fn); 217 INIT_LIST_HEAD(&sw->drain_node); 218 } 219 220 struct sas_discovery_event { 221 struct sas_work work; 222 struct asd_sas_port *port; 223 }; 224 225 static inline struct sas_discovery_event *to_sas_discovery_event(struct work_struct *work) 226 { 227 struct sas_discovery_event *ev = container_of(work, typeof(*ev), work.work); 228 229 return ev; 230 } 231 232 struct sas_discovery { 233 struct sas_discovery_event disc_work[DISC_NUM_EVENTS]; 234 unsigned long pending; 235 u8 fanout_sas_addr[SAS_ADDR_SIZE]; 236 u8 eeds_a[SAS_ADDR_SIZE]; 237 u8 eeds_b[SAS_ADDR_SIZE]; 238 int max_level; 239 }; 240 241 /* The port struct is Class:RW, driver:RO */ 242 struct asd_sas_port { 243 /* private: */ 244 struct sas_discovery disc; 245 struct domain_device *port_dev; 246 spinlock_t dev_list_lock; 247 struct list_head dev_list; 248 struct list_head disco_list; 249 struct list_head destroy_list; 250 struct list_head sas_port_del_list; 251 enum sas_linkrate linkrate; 252 253 struct sas_work work; 254 int suspended; 255 256 /* public: */ 257 int id; 258 259 u8 sas_addr[SAS_ADDR_SIZE]; 260 u8 attached_sas_addr[SAS_ADDR_SIZE]; 261 enum sas_protocol iproto; 262 enum sas_protocol tproto; 263 264 enum sas_oob_mode oob_mode; 265 266 spinlock_t phy_list_lock; 267 struct list_head phy_list; 268 int num_phys; 269 u32 phy_mask; 270 271 struct sas_ha_struct *ha; 272 273 struct sas_port *port; 274 275 void *lldd_port; /* not touched by the sas class code */ 276 }; 277 278 struct asd_sas_event { 279 struct sas_work work; 280 struct asd_sas_phy *phy; 281 int event; 282 }; 283 284 static inline struct asd_sas_event *to_asd_sas_event(struct work_struct *work) 285 { 286 struct asd_sas_event *ev = container_of(work, typeof(*ev), work.work); 287 288 return ev; 289 } 290 291 static inline void INIT_SAS_EVENT(struct asd_sas_event *ev, 292 void (*fn)(struct work_struct *), 293 struct asd_sas_phy *phy, int event) 294 { 295 INIT_SAS_WORK(&ev->work, fn); 296 ev->phy = phy; 297 ev->event = event; 298 } 299 300 #define SAS_PHY_SHUTDOWN_THRES 1024 301 302 /* The phy pretty much is controlled by the LLDD. 303 * The class only reads those fields. 304 */ 305 struct asd_sas_phy { 306 /* private: */ 307 atomic_t event_nr; 308 int in_shutdown; 309 int error; 310 int suspended; 311 312 struct sas_phy *phy; 313 314 /* public: */ 315 /* The following are class:RO, driver:R/W */ 316 int enabled; /* must be set */ 317 318 int id; /* must be set */ 319 enum sas_protocol iproto; 320 enum sas_protocol tproto; 321 322 enum sas_phy_role role; 323 enum sas_oob_mode oob_mode; 324 enum sas_linkrate linkrate; 325 326 u8 *sas_addr; /* must be set */ 327 u8 attached_sas_addr[SAS_ADDR_SIZE]; /* class:RO, driver: R/W */ 328 329 spinlock_t frame_rcvd_lock; 330 u8 *frame_rcvd; /* must be set */ 331 int frame_rcvd_size; 332 333 spinlock_t sas_prim_lock; 334 u32 sas_prim; 335 336 struct list_head port_phy_el; /* driver:RO */ 337 struct asd_sas_port *port; /* Class:RW, driver: RO */ 338 339 struct sas_ha_struct *ha; /* may be set; the class sets it anyway */ 340 341 void *lldd_phy; /* not touched by the sas_class_code */ 342 }; 343 344 enum sas_ha_state { 345 SAS_HA_REGISTERED, 346 SAS_HA_DRAINING, 347 SAS_HA_ATA_EH_ACTIVE, 348 SAS_HA_FROZEN, 349 SAS_HA_RESUMING, 350 }; 351 352 struct sas_ha_struct { 353 /* private: */ 354 struct list_head defer_q; /* work queued while draining */ 355 struct mutex drain_mutex; 356 unsigned long state; 357 spinlock_t lock; 358 int eh_active; 359 wait_queue_head_t eh_wait_q; 360 struct list_head eh_dev_q; 361 362 struct mutex disco_mutex; 363 364 struct Scsi_Host *shost; 365 366 /* public: */ 367 char *sas_ha_name; 368 struct device *dev; /* should be set */ 369 370 struct workqueue_struct *event_q; 371 struct workqueue_struct *disco_q; 372 373 u8 *sas_addr; /* must be set */ 374 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE]; 375 376 spinlock_t phy_port_lock; 377 struct asd_sas_phy **sas_phy; /* array of valid pointers, must be set */ 378 struct asd_sas_port **sas_port; /* array of valid pointers, must be set */ 379 int num_phys; /* must be set, gt 0, static */ 380 381 int strict_wide_ports; /* both sas_addr and attached_sas_addr must match 382 * their siblings when forming wide ports */ 383 384 void *lldd_ha; /* not touched by sas class code */ 385 386 struct list_head eh_done_q; /* complete via scsi_eh_flush_done_q */ 387 struct list_head eh_ata_q; /* scmds to promote from sas to ata eh */ 388 389 int event_thres; 390 }; 391 392 #define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata) 393 394 static inline struct domain_device * 395 starget_to_domain_dev(struct scsi_target *starget) { 396 return starget->hostdata; 397 } 398 399 static inline struct domain_device * 400 sdev_to_domain_dev(struct scsi_device *sdev) { 401 return starget_to_domain_dev(sdev->sdev_target); 402 } 403 404 static inline struct ata_device *sas_to_ata_dev(struct domain_device *dev) 405 { 406 return &dev->sata_dev.ap->link.device[0]; 407 } 408 409 static inline struct domain_device * 410 cmd_to_domain_dev(struct scsi_cmnd *cmd) 411 { 412 return sdev_to_domain_dev(cmd->device); 413 } 414 415 /* Before calling a notify event, LLDD should use this function 416 * when the link is severed (possibly from its tasklet). 417 * The idea is that the Class only reads those, while the LLDD, 418 * can R/W these (thus avoiding a race). 419 */ 420 static inline void sas_phy_disconnected(struct asd_sas_phy *phy) 421 { 422 phy->oob_mode = OOB_NOT_CONNECTED; 423 phy->linkrate = SAS_LINK_RATE_UNKNOWN; 424 } 425 426 static inline unsigned int to_sas_gpio_od(int device, int bit) 427 { 428 return 3 * device + bit; 429 } 430 431 static inline void sas_put_local_phy(struct sas_phy *phy) 432 { 433 put_device(&phy->dev); 434 } 435 436 #ifdef CONFIG_SCSI_SAS_HOST_SMP 437 int try_test_sas_gpio_gp_bit(unsigned int od, u8 *data, u8 index, u8 count); 438 #else 439 static inline int try_test_sas_gpio_gp_bit(unsigned int od, u8 *data, u8 index, u8 count) 440 { 441 return -1; 442 } 443 #endif 444 445 /* ---------- Tasks ---------- */ 446 /* 447 service_response | SAS_TASK_COMPLETE | SAS_TASK_UNDELIVERED | 448 exec_status | | | 449 ---------------------+---------------------+-----------------------+ 450 SAM_... | X | | 451 DEV_NO_RESPONSE | X | X | 452 INTERRUPTED | X | | 453 QUEUE_FULL | | X | 454 DEVICE_UNKNOWN | | X | 455 SG_ERR | | X | 456 ---------------------+---------------------+-----------------------+ 457 */ 458 459 enum service_response { 460 SAS_TASK_COMPLETE, 461 SAS_TASK_UNDELIVERED = -1, 462 }; 463 464 enum exec_status { 465 /* 466 * Values 0..0x7f are used to return the SAM_STAT_* codes. To avoid 467 * 'case value not in enumerated type' compiler warnings every value 468 * returned through the exec_status enum needs an alias with the SAS_ 469 * prefix here. 470 */ 471 SAS_SAM_STAT_GOOD = SAM_STAT_GOOD, 472 SAS_SAM_STAT_BUSY = SAM_STAT_BUSY, 473 SAS_SAM_STAT_TASK_ABORTED = SAM_STAT_TASK_ABORTED, 474 SAS_SAM_STAT_CHECK_CONDITION = SAM_STAT_CHECK_CONDITION, 475 476 SAS_DEV_NO_RESPONSE = 0x80, 477 SAS_DATA_UNDERRUN, 478 SAS_DATA_OVERRUN, 479 SAS_INTERRUPTED, 480 SAS_QUEUE_FULL, 481 SAS_DEVICE_UNKNOWN, 482 SAS_OPEN_REJECT, 483 SAS_OPEN_TO, 484 SAS_PROTO_RESPONSE, 485 SAS_PHY_DOWN, 486 SAS_NAK_R_ERR, 487 SAS_PENDING, 488 SAS_ABORTED_TASK, 489 }; 490 491 /* When a task finishes with a response, the LLDD examines the 492 * response: 493 * - For an ATA task task_status_struct::stat is set to 494 * SAS_PROTO_RESPONSE, and the task_status_struct::buf is set to the 495 * contents of struct ata_task_resp. 496 * - For SSP tasks, if no data is present or status/TMF response 497 * is valid, task_status_struct::stat is set. If data is present 498 * (SENSE data), the LLDD copies up to SAS_STATUS_BUF_SIZE, sets 499 * task_status_struct::buf_valid_size, and task_status_struct::stat is 500 * set to SAM_CHECK_COND. 501 * 502 * "buf" has format SCSI Sense for SSP task, or struct ata_task_resp 503 * for ATA task. 504 * 505 * "frame_len" is the total frame length, which could be more or less 506 * than actually copied. 507 * 508 * Tasks ending with response, always set the residual field. 509 */ 510 struct ata_task_resp { 511 u16 frame_len; 512 u8 ending_fis[ATA_RESP_FIS_SIZE]; /* dev to host or data-in */ 513 }; 514 515 #define SAS_STATUS_BUF_SIZE 96 516 517 struct task_status_struct { 518 enum service_response resp; 519 enum exec_status stat; 520 int buf_valid_size; 521 522 u8 buf[SAS_STATUS_BUF_SIZE]; 523 524 u32 residual; 525 enum sas_open_rej_reason open_rej_reason; 526 }; 527 528 /* ATA and ATAPI task queuable to a SAS LLDD. 529 */ 530 struct sas_ata_task { 531 struct host_to_dev_fis fis; 532 u8 atapi_packet[16]; /* 0 if not ATAPI task */ 533 534 u8 dma_xfer:1; /* PIO:0 or DMA:1 */ 535 u8 use_ncq:1; 536 u8 return_fis_on_success:1; 537 538 u8 device_control_reg_update:1; 539 540 bool force_phy; 541 int force_phy_id; 542 }; 543 544 /* LLDDs rely on these values */ 545 enum sas_internal_abort { 546 SAS_INTERNAL_ABORT_SINGLE = 0, 547 SAS_INTERNAL_ABORT_DEV = 1, 548 }; 549 550 struct sas_internal_abort_task { 551 enum sas_internal_abort type; 552 unsigned int qid; 553 u16 tag; 554 }; 555 556 struct sas_smp_task { 557 struct scatterlist smp_req; 558 struct scatterlist smp_resp; 559 }; 560 561 enum task_attribute { 562 TASK_ATTR_SIMPLE = 0, 563 TASK_ATTR_HOQ = 1, 564 TASK_ATTR_ORDERED= 2, 565 TASK_ATTR_ACA = 4, 566 }; 567 568 struct sas_ssp_task { 569 u8 LUN[8]; 570 enum task_attribute task_attr; 571 struct scsi_cmnd *cmd; 572 }; 573 574 struct sas_tmf_task { 575 u8 tmf; 576 u16 tag_of_task_to_be_managed; 577 }; 578 579 struct sas_task { 580 struct domain_device *dev; 581 582 spinlock_t task_state_lock; 583 unsigned task_state_flags; 584 585 enum sas_protocol task_proto; 586 587 union { 588 struct sas_ata_task ata_task; 589 struct sas_smp_task smp_task; 590 struct sas_ssp_task ssp_task; 591 struct sas_internal_abort_task abort_task; 592 }; 593 594 struct scatterlist *scatter; 595 int num_scatter; 596 u32 total_xfer_len; 597 u8 data_dir:2; /* Use PCI_DMA_... */ 598 599 struct task_status_struct task_status; 600 void (*task_done)(struct sas_task *); 601 602 void *lldd_task; /* for use by LLDDs */ 603 void *uldd_task; 604 struct sas_task_slow *slow_task; 605 struct sas_tmf_task *tmf; 606 }; 607 608 struct sas_task_slow { 609 /* standard/extra infrastructure for slow path commands (SMP and 610 * internal lldd commands 611 */ 612 struct timer_list timer; 613 struct completion completion; 614 struct sas_task *task; 615 }; 616 617 #define SAS_TASK_STATE_PENDING 1 618 #define SAS_TASK_STATE_DONE 2 619 #define SAS_TASK_STATE_ABORTED 4 620 #define SAS_TASK_NEED_DEV_RESET 8 621 622 static inline bool sas_is_internal_abort(struct sas_task *task) 623 { 624 return task->task_proto == SAS_PROTOCOL_INTERNAL_ABORT; 625 } 626 627 static inline struct request *sas_task_find_rq(struct sas_task *task) 628 { 629 struct scsi_cmnd *scmd; 630 631 if (task->task_proto & SAS_PROTOCOL_STP_ALL) { 632 struct ata_queued_cmd *qc = task->uldd_task; 633 634 scmd = qc ? qc->scsicmd : NULL; 635 } else { 636 scmd = task->uldd_task; 637 } 638 639 if (!scmd) 640 return NULL; 641 642 return scsi_cmd_to_rq(scmd); 643 } 644 645 struct sas_domain_function_template { 646 /* The class calls these to notify the LLDD of an event. */ 647 void (*lldd_port_formed)(struct asd_sas_phy *); 648 void (*lldd_port_deformed)(struct asd_sas_phy *); 649 650 /* The class calls these when a device is found or gone. */ 651 int (*lldd_dev_found)(struct domain_device *); 652 void (*lldd_dev_gone)(struct domain_device *); 653 654 int (*lldd_execute_task)(struct sas_task *, gfp_t gfp_flags); 655 656 /* Task Management Functions. Must be called from process context. */ 657 int (*lldd_abort_task)(struct sas_task *); 658 int (*lldd_abort_task_set)(struct domain_device *, u8 *lun); 659 int (*lldd_clear_task_set)(struct domain_device *, u8 *lun); 660 int (*lldd_I_T_nexus_reset)(struct domain_device *); 661 int (*lldd_ata_check_ready)(struct domain_device *); 662 void (*lldd_ata_set_dmamode)(struct domain_device *); 663 int (*lldd_lu_reset)(struct domain_device *, u8 *lun); 664 int (*lldd_query_task)(struct sas_task *); 665 666 /* Special TMF callbacks */ 667 void (*lldd_tmf_exec_complete)(struct domain_device *dev); 668 void (*lldd_tmf_aborted)(struct sas_task *task); 669 bool (*lldd_abort_timeout)(struct sas_task *task, void *data); 670 671 /* Port and Adapter management */ 672 int (*lldd_clear_nexus_port)(struct asd_sas_port *); 673 int (*lldd_clear_nexus_ha)(struct sas_ha_struct *); 674 675 /* Phy management */ 676 int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *); 677 678 /* GPIO support */ 679 int (*lldd_write_gpio)(struct sas_ha_struct *, u8 reg_type, 680 u8 reg_index, u8 reg_count, u8 *write_data); 681 }; 682 683 extern int sas_register_ha(struct sas_ha_struct *); 684 extern int sas_unregister_ha(struct sas_ha_struct *); 685 extern void sas_prep_resume_ha(struct sas_ha_struct *sas_ha); 686 extern void sas_resume_ha(struct sas_ha_struct *sas_ha); 687 extern void sas_resume_ha_no_sync(struct sas_ha_struct *sas_ha); 688 extern void sas_suspend_ha(struct sas_ha_struct *sas_ha); 689 690 int sas_phy_reset(struct sas_phy *phy, int hard_reset); 691 int sas_phy_enable(struct sas_phy *phy, int enable); 692 extern int sas_queuecommand(struct Scsi_Host *, struct scsi_cmnd *); 693 extern int sas_target_alloc(struct scsi_target *); 694 int sas_sdev_configure(struct scsi_device *dev, struct queue_limits *lim); 695 extern int sas_change_queue_depth(struct scsi_device *, int new_depth); 696 extern int sas_bios_param(struct scsi_device *, struct gendisk *, 697 sector_t capacity, int *hsc); 698 int sas_execute_internal_abort_single(struct domain_device *device, 699 u16 tag, unsigned int qid, 700 void *data); 701 int sas_execute_internal_abort_dev(struct domain_device *device, 702 unsigned int qid, void *data); 703 extern struct scsi_transport_template * 704 sas_domain_attach_transport(struct sas_domain_function_template *); 705 extern struct device_attribute dev_attr_phy_event_threshold; 706 707 void sas_task_abort(struct sas_task *); 708 int sas_eh_abort_handler(struct scsi_cmnd *cmd); 709 int sas_eh_device_reset_handler(struct scsi_cmnd *cmd); 710 int sas_eh_target_reset_handler(struct scsi_cmnd *cmd); 711 712 extern void sas_target_destroy(struct scsi_target *); 713 extern int sas_sdev_init(struct scsi_device *); 714 extern int sas_ioctl(struct scsi_device *sdev, unsigned int cmd, 715 void __user *arg); 716 extern int sas_drain_work(struct sas_ha_struct *ha); 717 718 extern void sas_ssp_task_response(struct device *dev, struct sas_task *task, 719 struct ssp_response_iu *iu); 720 struct sas_phy *sas_get_local_phy(struct domain_device *dev); 721 722 int sas_request_addr(struct Scsi_Host *shost, u8 *addr); 723 724 int sas_abort_task_set(struct domain_device *dev, u8 *lun); 725 int sas_clear_task_set(struct domain_device *dev, u8 *lun); 726 int sas_lu_reset(struct domain_device *dev, u8 *lun); 727 int sas_query_task(struct sas_task *task, u16 tag); 728 int sas_abort_task(struct sas_task *task, u16 tag); 729 int sas_find_attached_phy_id(struct expander_device *ex_dev, 730 struct domain_device *dev); 731 732 void sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event, 733 gfp_t gfp_flags); 734 void sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event, 735 gfp_t gfp_flags); 736 737 #define __LIBSAS_SHT_BASE \ 738 .module = THIS_MODULE, \ 739 .name = DRV_NAME, \ 740 .proc_name = DRV_NAME, \ 741 .queuecommand = sas_queuecommand, \ 742 .dma_need_drain = ata_scsi_dma_need_drain, \ 743 .target_alloc = sas_target_alloc, \ 744 .change_queue_depth = sas_change_queue_depth, \ 745 .bios_param = sas_bios_param, \ 746 .this_id = -1, \ 747 .eh_device_reset_handler = sas_eh_device_reset_handler, \ 748 .eh_target_reset_handler = sas_eh_target_reset_handler, \ 749 .target_destroy = sas_target_destroy, \ 750 .ioctl = sas_ioctl, \ 751 752 #ifdef CONFIG_COMPAT 753 #define _LIBSAS_SHT_BASE __LIBSAS_SHT_BASE \ 754 .compat_ioctl = sas_ioctl, 755 #else 756 #define _LIBSAS_SHT_BASE __LIBSAS_SHT_BASE 757 #endif 758 759 #define LIBSAS_SHT_BASE _LIBSAS_SHT_BASE \ 760 .sdev_configure = sas_sdev_configure, \ 761 .sdev_init = sas_sdev_init, \ 762 763 #define LIBSAS_SHT_BASE_NO_SLAVE_INIT _LIBSAS_SHT_BASE 764 765 766 #endif /* _SASLIB_H_ */ 767