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10#ifndef __LINUX_LIBATA_H__
11#define __LINUX_LIBATA_H__
12
13#include <linux/delay.h>
14#include <linux/jiffies.h>
15#include <linux/interrupt.h>
16#include <linux/dma-mapping.h>
17#include <linux/scatterlist.h>
18#include <linux/io.h>
19#include <linux/ata.h>
20#include <linux/workqueue.h>
21#include <scsi/scsi_host.h>
22#include <linux/acpi.h>
23#include <linux/cdrom.h>
24#include <linux/sched.h>
25#include <linux/async.h>
26
27
28
29
30
31#ifdef CONFIG_ATA_NONSTANDARD
32#include <asm/libata-portmap.h>
33#else
34#define ATA_PRIMARY_IRQ(dev) 14
35#define ATA_SECONDARY_IRQ(dev) 15
36#endif
37
38
39
40
41
42#undef ATA_IRQ_TRAP
43
44
45#define ata_print_version_once(dev, version) \
46({ \
47 static bool __print_once; \
48 \
49 if (!__print_once) { \
50 __print_once = true; \
51 ata_print_version(dev, version); \
52 } \
53})
54
55
56#define ATA_TAG_POISON 0xfafbfcfdU
57
58enum {
59
60 LIBATA_MAX_PRD = ATA_MAX_PRD / 2,
61 LIBATA_DUMB_MAX_PRD = ATA_MAX_PRD / 4,
62 ATA_DEF_QUEUE = 1,
63 ATA_MAX_QUEUE = 32,
64 ATA_TAG_INTERNAL = ATA_MAX_QUEUE,
65 ATA_SHORT_PAUSE = 16,
66
67 ATAPI_MAX_DRAIN = 16 << 10,
68
69 ATA_ALL_DEVICES = (1 << ATA_MAX_DEVICES) - 1,
70
71 ATA_SHT_EMULATED = 1,
72 ATA_SHT_THIS_ID = -1,
73
74
75 ATA_TFLAG_LBA48 = (1 << 0),
76 ATA_TFLAG_ISADDR = (1 << 1),
77 ATA_TFLAG_DEVICE = (1 << 2),
78 ATA_TFLAG_WRITE = (1 << 3),
79 ATA_TFLAG_LBA = (1 << 4),
80 ATA_TFLAG_FUA = (1 << 5),
81 ATA_TFLAG_POLLING = (1 << 6),
82
83
84 ATA_DFLAG_LBA = (1 << 0),
85 ATA_DFLAG_LBA48 = (1 << 1),
86 ATA_DFLAG_CDB_INTR = (1 << 2),
87 ATA_DFLAG_NCQ = (1 << 3),
88 ATA_DFLAG_FLUSH_EXT = (1 << 4),
89 ATA_DFLAG_ACPI_PENDING = (1 << 5),
90 ATA_DFLAG_ACPI_FAILED = (1 << 6),
91 ATA_DFLAG_AN = (1 << 7),
92 ATA_DFLAG_TRUSTED = (1 << 8),
93 ATA_DFLAG_DMADIR = (1 << 10),
94 ATA_DFLAG_CFG_MASK = (1 << 12) - 1,
95
96 ATA_DFLAG_PIO = (1 << 12),
97 ATA_DFLAG_NCQ_OFF = (1 << 13),
98 ATA_DFLAG_SLEEPING = (1 << 15),
99 ATA_DFLAG_DUBIOUS_XFER = (1 << 16),
100 ATA_DFLAG_NO_UNLOAD = (1 << 17),
101 ATA_DFLAG_UNLOCK_HPA = (1 << 18),
102 ATA_DFLAG_NCQ_SEND_RECV = (1 << 19),
103 ATA_DFLAG_NCQ_PRIO = (1 << 20),
104 ATA_DFLAG_NCQ_PRIO_ENABLE = (1 << 21),
105 ATA_DFLAG_INIT_MASK = (1 << 24) - 1,
106
107 ATA_DFLAG_DETACH = (1 << 24),
108 ATA_DFLAG_DETACHED = (1 << 25),
109
110 ATA_DFLAG_DA = (1 << 26),
111 ATA_DFLAG_DEVSLP = (1 << 27),
112 ATA_DFLAG_ACPI_DISABLED = (1 << 28),
113 ATA_DFLAG_D_SENSE = (1 << 29),
114 ATA_DFLAG_ZAC = (1 << 30),
115
116 ATA_DFLAG_FEATURES_MASK = ATA_DFLAG_TRUSTED | ATA_DFLAG_DA | \
117 ATA_DFLAG_DEVSLP | ATA_DFLAG_NCQ_SEND_RECV | \
118 ATA_DFLAG_NCQ_PRIO,
119
120 ATA_DEV_UNKNOWN = 0,
121 ATA_DEV_ATA = 1,
122 ATA_DEV_ATA_UNSUP = 2,
123 ATA_DEV_ATAPI = 3,
124 ATA_DEV_ATAPI_UNSUP = 4,
125 ATA_DEV_PMP = 5,
126 ATA_DEV_PMP_UNSUP = 6,
127 ATA_DEV_SEMB = 7,
128 ATA_DEV_SEMB_UNSUP = 8,
129 ATA_DEV_ZAC = 9,
130 ATA_DEV_ZAC_UNSUP = 10,
131 ATA_DEV_NONE = 11,
132
133
134
135 ATA_LFLAG_NO_HRST = (1 << 1),
136 ATA_LFLAG_NO_SRST = (1 << 2),
137 ATA_LFLAG_ASSUME_ATA = (1 << 3),
138 ATA_LFLAG_ASSUME_SEMB = (1 << 4),
139 ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB,
140 ATA_LFLAG_NO_RETRY = (1 << 5),
141 ATA_LFLAG_DISABLED = (1 << 6),
142 ATA_LFLAG_SW_ACTIVITY = (1 << 7),
143 ATA_LFLAG_NO_LPM = (1 << 8),
144 ATA_LFLAG_RST_ONCE = (1 << 9),
145 ATA_LFLAG_CHANGED = (1 << 10),
146 ATA_LFLAG_NO_DEBOUNCE_DELAY = (1 << 11),
147
148
149 ATA_FLAG_SLAVE_POSS = (1 << 0),
150
151 ATA_FLAG_SATA = (1 << 1),
152 ATA_FLAG_NO_LPM = (1 << 2),
153 ATA_FLAG_NO_LOG_PAGE = (1 << 5),
154 ATA_FLAG_NO_ATAPI = (1 << 6),
155 ATA_FLAG_PIO_DMA = (1 << 7),
156 ATA_FLAG_PIO_LBA48 = (1 << 8),
157 ATA_FLAG_PIO_POLLING = (1 << 9),
158
159 ATA_FLAG_NCQ = (1 << 10),
160 ATA_FLAG_NO_POWEROFF_SPINDOWN = (1 << 11),
161 ATA_FLAG_NO_HIBERNATE_SPINDOWN = (1 << 12),
162 ATA_FLAG_DEBUGMSG = (1 << 13),
163 ATA_FLAG_FPDMA_AA = (1 << 14),
164 ATA_FLAG_IGN_SIMPLEX = (1 << 15),
165 ATA_FLAG_NO_IORDY = (1 << 16),
166 ATA_FLAG_ACPI_SATA = (1 << 17),
167 ATA_FLAG_AN = (1 << 18),
168 ATA_FLAG_PMP = (1 << 19),
169 ATA_FLAG_FPDMA_AUX = (1 << 20),
170 ATA_FLAG_EM = (1 << 21),
171
172 ATA_FLAG_SW_ACTIVITY = (1 << 22),
173
174 ATA_FLAG_NO_DIPM = (1 << 23),
175 ATA_FLAG_SAS_HOST = (1 << 24),
176
177
178
179
180
181 ATA_PFLAG_EH_PENDING = (1 << 0),
182 ATA_PFLAG_EH_IN_PROGRESS = (1 << 1),
183 ATA_PFLAG_FROZEN = (1 << 2),
184 ATA_PFLAG_RECOVERED = (1 << 3),
185 ATA_PFLAG_LOADING = (1 << 4),
186 ATA_PFLAG_SCSI_HOTPLUG = (1 << 6),
187 ATA_PFLAG_INITIALIZING = (1 << 7),
188 ATA_PFLAG_RESETTING = (1 << 8),
189 ATA_PFLAG_UNLOADING = (1 << 9),
190 ATA_PFLAG_UNLOADED = (1 << 10),
191
192 ATA_PFLAG_SUSPENDED = (1 << 17),
193 ATA_PFLAG_PM_PENDING = (1 << 18),
194 ATA_PFLAG_INIT_GTM_VALID = (1 << 19),
195
196 ATA_PFLAG_PIO32 = (1 << 20),
197 ATA_PFLAG_PIO32CHANGE = (1 << 21),
198 ATA_PFLAG_EXTERNAL = (1 << 22),
199
200
201 ATA_QCFLAG_ACTIVE = (1 << 0),
202 ATA_QCFLAG_DMAMAP = (1 << 1),
203 ATA_QCFLAG_IO = (1 << 3),
204 ATA_QCFLAG_RESULT_TF = (1 << 4),
205 ATA_QCFLAG_CLEAR_EXCL = (1 << 5),
206 ATA_QCFLAG_QUIET = (1 << 6),
207 ATA_QCFLAG_RETRY = (1 << 7),
208
209 ATA_QCFLAG_FAILED = (1 << 16),
210 ATA_QCFLAG_SENSE_VALID = (1 << 17),
211 ATA_QCFLAG_EH_SCHEDULED = (1 << 18),
212
213
214 ATA_HOST_SIMPLEX = (1 << 0),
215 ATA_HOST_STARTED = (1 << 1),
216 ATA_HOST_PARALLEL_SCAN = (1 << 2),
217 ATA_HOST_IGNORE_ATA = (1 << 3),
218
219
220
221
222 ATA_TMOUT_BOOT = 30000,
223 ATA_TMOUT_BOOT_QUICK = 7000,
224 ATA_TMOUT_INTERNAL_QUICK = 5000,
225 ATA_TMOUT_MAX_PARK = 30000,
226
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230
231
232 ATA_TMOUT_FF_WAIT_LONG = 2000,
233 ATA_TMOUT_FF_WAIT = 800,
234
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243
244
245 ATA_WAIT_AFTER_RESET = 150,
246
247
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249
250
251
252 ATA_TMOUT_PMP_SRST_WAIT = 5000,
253
254
255
256
257
258 ATA_TMOUT_SPURIOUS_PHY = 10000,
259
260
261 BUS_UNKNOWN = 0,
262 BUS_DMA = 1,
263 BUS_IDLE = 2,
264 BUS_NOINTR = 3,
265 BUS_NODATA = 4,
266 BUS_TIMER = 5,
267 BUS_PIO = 6,
268 BUS_EDD = 7,
269 BUS_IDENTIFY = 8,
270 BUS_PACKET = 9,
271
272
273 PORT_UNKNOWN = 0,
274 PORT_ENABLED = 1,
275 PORT_DISABLED = 2,
276
277
278
279
280 ATA_NR_PIO_MODES = 7,
281 ATA_NR_MWDMA_MODES = 5,
282 ATA_NR_UDMA_MODES = 8,
283
284 ATA_SHIFT_PIO = 0,
285 ATA_SHIFT_MWDMA = ATA_SHIFT_PIO + ATA_NR_PIO_MODES,
286 ATA_SHIFT_UDMA = ATA_SHIFT_MWDMA + ATA_NR_MWDMA_MODES,
287 ATA_SHIFT_PRIO = 6,
288
289 ATA_PRIO_HIGH = 2,
290
291 ATA_DMA_PAD_SZ = 4,
292
293
294 ATA_ERING_SIZE = 32,
295
296
297 ATA_DEFER_LINK = 1,
298 ATA_DEFER_PORT = 2,
299
300
301 ATA_EH_DESC_LEN = 80,
302
303
304 ATA_EH_REVALIDATE = (1 << 0),
305 ATA_EH_SOFTRESET = (1 << 1),
306 ATA_EH_HARDRESET = (1 << 2),
307 ATA_EH_RESET = ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
308 ATA_EH_ENABLE_LINK = (1 << 3),
309 ATA_EH_PARK = (1 << 5),
310
311 ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_PARK,
312 ATA_EH_ALL_ACTIONS = ATA_EH_REVALIDATE | ATA_EH_RESET |
313 ATA_EH_ENABLE_LINK,
314
315
316 ATA_EHI_HOTPLUGGED = (1 << 0),
317 ATA_EHI_NO_AUTOPSY = (1 << 2),
318 ATA_EHI_QUIET = (1 << 3),
319 ATA_EHI_NO_RECOVERY = (1 << 4),
320
321 ATA_EHI_DID_SOFTRESET = (1 << 16),
322 ATA_EHI_DID_HARDRESET = (1 << 17),
323 ATA_EHI_PRINTINFO = (1 << 18),
324 ATA_EHI_SETMODE = (1 << 19),
325 ATA_EHI_POST_SETMODE = (1 << 20),
326
327 ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET,
328
329
330 ATA_EHI_TO_SLAVE_MASK = ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET,
331
332
333 ATA_EH_MAX_TRIES = 5,
334
335
336 ATA_LINK_RESUME_TRIES = 5,
337
338
339 ATA_PROBE_MAX_TRIES = 3,
340 ATA_EH_DEV_TRIES = 3,
341 ATA_EH_PMP_TRIES = 5,
342 ATA_EH_PMP_LINK_TRIES = 3,
343
344 SATA_PMP_RW_TIMEOUT = 3000,
345
346
347
348
349 ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 7,
350
351
352
353
354 ATA_HORKAGE_DIAGNOSTIC = (1 << 0),
355 ATA_HORKAGE_NODMA = (1 << 1),
356 ATA_HORKAGE_NONCQ = (1 << 2),
357 ATA_HORKAGE_MAX_SEC_128 = (1 << 3),
358 ATA_HORKAGE_BROKEN_HPA = (1 << 4),
359 ATA_HORKAGE_DISABLE = (1 << 5),
360 ATA_HORKAGE_HPA_SIZE = (1 << 6),
361 ATA_HORKAGE_IVB = (1 << 8),
362 ATA_HORKAGE_STUCK_ERR = (1 << 9),
363 ATA_HORKAGE_BRIDGE_OK = (1 << 10),
364 ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11),
365
366 ATA_HORKAGE_FIRMWARE_WARN = (1 << 12),
367 ATA_HORKAGE_1_5_GBPS = (1 << 13),
368 ATA_HORKAGE_NOSETXFER = (1 << 14),
369 ATA_HORKAGE_BROKEN_FPDMA_AA = (1 << 15),
370 ATA_HORKAGE_DUMP_ID = (1 << 16),
371 ATA_HORKAGE_MAX_SEC_LBA48 = (1 << 17),
372 ATA_HORKAGE_ATAPI_DMADIR = (1 << 18),
373 ATA_HORKAGE_NO_NCQ_TRIM = (1 << 19),
374 ATA_HORKAGE_NOLPM = (1 << 20),
375 ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21),
376 ATA_HORKAGE_ZERO_AFTER_TRIM = (1 << 22),
377 ATA_HORKAGE_NO_DMA_LOG = (1 << 23),
378 ATA_HORKAGE_NOTRIM = (1 << 24),
379 ATA_HORKAGE_MAX_SEC_1024 = (1 << 25),
380 ATA_HORKAGE_MAX_TRIM_128M = (1 << 26),
381 ATA_HORKAGE_NO_NCQ_ON_ATI = (1 << 27),
382 ATA_HORKAGE_NO_ID_DEV_LOG = (1 << 28),
383 ATA_HORKAGE_NO_LOG_DIR = (1 << 29),
384
385
386
387 ATA_DMA_MASK_ATA = (1 << 0),
388 ATA_DMA_MASK_ATAPI = (1 << 1),
389 ATA_DMA_MASK_CFA = (1 << 2),
390
391
392 ATAPI_READ = 0,
393 ATAPI_WRITE = 1,
394 ATAPI_READ_CD = 2,
395 ATAPI_PASS_THRU = 3,
396 ATAPI_MISC = 4,
397
398
399 ATA_TIMING_SETUP = (1 << 0),
400 ATA_TIMING_ACT8B = (1 << 1),
401 ATA_TIMING_REC8B = (1 << 2),
402 ATA_TIMING_CYC8B = (1 << 3),
403 ATA_TIMING_8BIT = ATA_TIMING_ACT8B | ATA_TIMING_REC8B |
404 ATA_TIMING_CYC8B,
405 ATA_TIMING_ACTIVE = (1 << 4),
406 ATA_TIMING_RECOVER = (1 << 5),
407 ATA_TIMING_DMACK_HOLD = (1 << 6),
408 ATA_TIMING_CYCLE = (1 << 7),
409 ATA_TIMING_UDMA = (1 << 8),
410 ATA_TIMING_ALL = ATA_TIMING_SETUP | ATA_TIMING_ACT8B |
411 ATA_TIMING_REC8B | ATA_TIMING_CYC8B |
412 ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER |
413 ATA_TIMING_DMACK_HOLD | ATA_TIMING_CYCLE |
414 ATA_TIMING_UDMA,
415
416
417 ATA_ACPI_FILTER_SETXFER = 1 << 0,
418 ATA_ACPI_FILTER_LOCK = 1 << 1,
419 ATA_ACPI_FILTER_DIPM = 1 << 2,
420 ATA_ACPI_FILTER_FPDMA_OFFSET = 1 << 3,
421 ATA_ACPI_FILTER_FPDMA_AA = 1 << 4,
422
423 ATA_ACPI_FILTER_DEFAULT = ATA_ACPI_FILTER_SETXFER |
424 ATA_ACPI_FILTER_LOCK |
425 ATA_ACPI_FILTER_DIPM,
426};
427
428enum ata_xfer_mask {
429 ATA_MASK_PIO = ((1LU << ATA_NR_PIO_MODES) - 1)
430 << ATA_SHIFT_PIO,
431 ATA_MASK_MWDMA = ((1LU << ATA_NR_MWDMA_MODES) - 1)
432 << ATA_SHIFT_MWDMA,
433 ATA_MASK_UDMA = ((1LU << ATA_NR_UDMA_MODES) - 1)
434 << ATA_SHIFT_UDMA,
435};
436
437enum hsm_task_states {
438 HSM_ST_IDLE,
439 HSM_ST_FIRST,
440
441 HSM_ST,
442 HSM_ST_LAST,
443 HSM_ST_ERR,
444};
445
446enum ata_completion_errors {
447 AC_ERR_OK = 0,
448 AC_ERR_DEV = (1 << 0),
449 AC_ERR_HSM = (1 << 1),
450 AC_ERR_TIMEOUT = (1 << 2),
451 AC_ERR_MEDIA = (1 << 3),
452 AC_ERR_ATA_BUS = (1 << 4),
453 AC_ERR_HOST_BUS = (1 << 5),
454 AC_ERR_SYSTEM = (1 << 6),
455 AC_ERR_INVALID = (1 << 7),
456 AC_ERR_OTHER = (1 << 8),
457 AC_ERR_NODEV_HINT = (1 << 9),
458 AC_ERR_NCQ = (1 << 10),
459};
460
461
462
463
464
465enum ata_lpm_policy {
466 ATA_LPM_UNKNOWN,
467 ATA_LPM_MAX_POWER,
468 ATA_LPM_MED_POWER,
469 ATA_LPM_MED_POWER_WITH_DIPM,
470 ATA_LPM_MIN_POWER_WITH_PARTIAL,
471 ATA_LPM_MIN_POWER,
472};
473
474enum ata_lpm_hints {
475 ATA_LPM_EMPTY = (1 << 0),
476 ATA_LPM_HIPM = (1 << 1),
477 ATA_LPM_WAKE_ONLY = (1 << 2),
478};
479
480
481struct scsi_device;
482struct ata_port_operations;
483struct ata_port;
484struct ata_link;
485struct ata_queued_cmd;
486
487
488typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
489typedef int (*ata_prereset_fn_t)(struct ata_link *link, unsigned long deadline);
490typedef int (*ata_reset_fn_t)(struct ata_link *link, unsigned int *classes,
491 unsigned long deadline);
492typedef void (*ata_postreset_fn_t)(struct ata_link *link, unsigned int *classes);
493
494extern struct device_attribute dev_attr_unload_heads;
495#ifdef CONFIG_SATA_HOST
496extern struct device_attribute dev_attr_link_power_management_policy;
497extern struct device_attribute dev_attr_ncq_prio_supported;
498extern struct device_attribute dev_attr_ncq_prio_enable;
499extern struct device_attribute dev_attr_em_message_type;
500extern struct device_attribute dev_attr_em_message;
501extern struct device_attribute dev_attr_sw_activity;
502#endif
503
504enum sw_activity {
505 OFF,
506 BLINK_ON,
507 BLINK_OFF,
508};
509
510struct ata_taskfile {
511 unsigned long flags;
512 u8 protocol;
513
514 u8 ctl;
515
516 u8 hob_feature;
517 u8 hob_nsect;
518 u8 hob_lbal;
519 u8 hob_lbam;
520 u8 hob_lbah;
521
522 union {
523 u8 error;
524 u8 feature;
525 };
526 u8 nsect;
527 u8 lbal;
528 u8 lbam;
529 u8 lbah;
530
531 u8 device;
532
533 union {
534 u8 status;
535 u8 command;
536 };
537
538 u32 auxiliary;
539
540
541};
542
543#ifdef CONFIG_ATA_SFF
544struct ata_ioports {
545 void __iomem *cmd_addr;
546 void __iomem *data_addr;
547 void __iomem *error_addr;
548 void __iomem *feature_addr;
549 void __iomem *nsect_addr;
550 void __iomem *lbal_addr;
551 void __iomem *lbam_addr;
552 void __iomem *lbah_addr;
553 void __iomem *device_addr;
554 void __iomem *status_addr;
555 void __iomem *command_addr;
556 void __iomem *altstatus_addr;
557 void __iomem *ctl_addr;
558#ifdef CONFIG_ATA_BMDMA
559 void __iomem *bmdma_addr;
560#endif
561 void __iomem *scr_addr;
562};
563#endif
564
565struct ata_host {
566 spinlock_t lock;
567 struct device *dev;
568 void __iomem * const *iomap;
569 unsigned int n_ports;
570 unsigned int n_tags;
571 void *private_data;
572 struct ata_port_operations *ops;
573 unsigned long flags;
574 struct kref kref;
575
576 struct mutex eh_mutex;
577 struct task_struct *eh_owner;
578
579 struct ata_port *simplex_claimed;
580 struct ata_port *ports[];
581};
582
583struct ata_queued_cmd {
584 struct ata_port *ap;
585 struct ata_device *dev;
586
587 struct scsi_cmnd *scsicmd;
588 void (*scsidone)(struct scsi_cmnd *);
589
590 struct ata_taskfile tf;
591 u8 cdb[ATAPI_CDB_LEN];
592
593 unsigned long flags;
594 unsigned int tag;
595 unsigned int hw_tag;
596 unsigned int n_elem;
597 unsigned int orig_n_elem;
598
599 int dma_dir;
600
601 unsigned int sect_size;
602
603 unsigned int nbytes;
604 unsigned int extrabytes;
605 unsigned int curbytes;
606
607 struct scatterlist sgent;
608
609 struct scatterlist *sg;
610
611 struct scatterlist *cursg;
612 unsigned int cursg_ofs;
613
614 unsigned int err_mask;
615 struct ata_taskfile result_tf;
616 ata_qc_cb_t complete_fn;
617
618 void *private_data;
619 void *lldd_task;
620};
621
622struct ata_port_stats {
623 unsigned long unhandled_irq;
624 unsigned long idle_irq;
625 unsigned long rw_reqbuf;
626};
627
628struct ata_ering_entry {
629 unsigned int eflags;
630 unsigned int err_mask;
631 u64 timestamp;
632};
633
634struct ata_ering {
635 int cursor;
636 struct ata_ering_entry ring[ATA_ERING_SIZE];
637};
638
639struct ata_cpr {
640 u8 num;
641 u8 num_storage_elements;
642 u64 start_lba;
643 u64 num_lbas;
644};
645
646struct ata_cpr_log {
647 u8 nr_cpr;
648 struct ata_cpr cpr[];
649};
650
651struct ata_device {
652 struct ata_link *link;
653 unsigned int devno;
654 unsigned int horkage;
655 unsigned long flags;
656 struct scsi_device *sdev;
657 void *private_data;
658#ifdef CONFIG_ATA_ACPI
659 union acpi_object *gtf_cache;
660 unsigned int gtf_filter;
661#endif
662#ifdef CONFIG_SATA_ZPODD
663 void *zpodd;
664#endif
665 struct device tdev;
666
667 u64 n_sectors;
668 u64 n_native_sectors;
669 unsigned int class;
670 unsigned long unpark_deadline;
671
672 u8 pio_mode;
673 u8 dma_mode;
674 u8 xfer_mode;
675 unsigned int xfer_shift;
676
677 unsigned int multi_count;
678
679 unsigned int max_sectors;
680 unsigned int cdb_len;
681
682
683 unsigned long pio_mask;
684 unsigned long mwdma_mask;
685 unsigned long udma_mask;
686
687
688 u16 cylinders;
689 u16 heads;
690 u16 sectors;
691
692 union {
693 u16 id[ATA_ID_WORDS];
694 u32 gscr[SATA_PMP_GSCR_DWORDS];
695 } ____cacheline_aligned;
696
697
698 u8 devslp_timing[ATA_LOG_DEVSLP_SIZE];
699
700
701 u8 ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_SIZE];
702 u8 ncq_non_data_cmds[ATA_LOG_NCQ_NON_DATA_SIZE];
703
704
705 u32 zac_zoned_cap;
706 u32 zac_zones_optimal_open;
707 u32 zac_zones_optimal_nonseq;
708 u32 zac_zones_max_open;
709
710
711 struct ata_cpr_log *cpr_log;
712
713
714 int spdn_cnt;
715
716 struct ata_ering ering;
717};
718
719
720
721
722#define ATA_DEVICE_CLEAR_BEGIN offsetof(struct ata_device, n_sectors)
723#define ATA_DEVICE_CLEAR_END offsetof(struct ata_device, ering)
724
725struct ata_eh_info {
726 struct ata_device *dev;
727 u32 serror;
728 unsigned int err_mask;
729 unsigned int action;
730 unsigned int dev_action[ATA_MAX_DEVICES];
731 unsigned int flags;
732
733 unsigned int probe_mask;
734
735 char desc[ATA_EH_DESC_LEN];
736 int desc_len;
737};
738
739struct ata_eh_context {
740 struct ata_eh_info i;
741 int tries[ATA_MAX_DEVICES];
742 int cmd_timeout_idx[ATA_MAX_DEVICES]
743 [ATA_EH_CMD_TIMEOUT_TABLE_SIZE];
744 unsigned int classes[ATA_MAX_DEVICES];
745 unsigned int did_probe_mask;
746 unsigned int unloaded_mask;
747 unsigned int saved_ncq_enabled;
748 u8 saved_xfer_mode[ATA_MAX_DEVICES];
749
750 unsigned long last_reset;
751};
752
753struct ata_acpi_drive
754{
755 u32 pio;
756 u32 dma;
757} __packed;
758
759struct ata_acpi_gtm {
760 struct ata_acpi_drive drive[2];
761 u32 flags;
762} __packed;
763
764struct ata_link {
765 struct ata_port *ap;
766 int pmp;
767
768 struct device tdev;
769 unsigned int active_tag;
770 u32 sactive;
771
772 unsigned int flags;
773
774 u32 saved_scontrol;
775 unsigned int hw_sata_spd_limit;
776 unsigned int sata_spd_limit;
777 unsigned int sata_spd;
778 enum ata_lpm_policy lpm_policy;
779
780
781 struct ata_eh_info eh_info;
782
783 struct ata_eh_context eh_context;
784
785 struct ata_device device[ATA_MAX_DEVICES];
786
787 unsigned long last_lpm_change;
788};
789#define ATA_LINK_CLEAR_BEGIN offsetof(struct ata_link, active_tag)
790#define ATA_LINK_CLEAR_END offsetof(struct ata_link, device[0])
791
792struct ata_port {
793 struct Scsi_Host *scsi_host;
794 struct ata_port_operations *ops;
795 spinlock_t *lock;
796
797
798 unsigned long flags;
799
800 unsigned int pflags;
801 unsigned int print_id;
802 unsigned int local_port_no;
803 unsigned int port_no;
804
805#ifdef CONFIG_ATA_SFF
806 struct ata_ioports ioaddr;
807 u8 ctl;
808 u8 last_ctl;
809 struct ata_link* sff_pio_task_link;
810 struct delayed_work sff_pio_task;
811#ifdef CONFIG_ATA_BMDMA
812 struct ata_bmdma_prd *bmdma_prd;
813 dma_addr_t bmdma_prd_dma;
814#endif
815#endif
816
817 unsigned int pio_mask;
818 unsigned int mwdma_mask;
819 unsigned int udma_mask;
820 unsigned int cbl;
821
822 struct ata_queued_cmd qcmd[ATA_MAX_QUEUE + 1];
823 unsigned long sas_tag_allocated;
824 u64 qc_active;
825 int nr_active_links;
826 unsigned int sas_last_tag;
827
828 struct ata_link link;
829 struct ata_link *slave_link;
830
831 int nr_pmp_links;
832 struct ata_link *pmp_link;
833 struct ata_link *excl_link;
834
835 struct ata_port_stats stats;
836 struct ata_host *host;
837 struct device *dev;
838 struct device tdev;
839
840 struct mutex scsi_scan_mutex;
841 struct delayed_work hotplug_task;
842 struct work_struct scsi_rescan_task;
843
844 unsigned int hsm_task_state;
845
846 struct list_head eh_done_q;
847 wait_queue_head_t eh_wait_q;
848 int eh_tries;
849 struct completion park_req_pending;
850
851 pm_message_t pm_mesg;
852 enum ata_lpm_policy target_lpm_policy;
853
854 struct timer_list fastdrain_timer;
855 unsigned long fastdrain_cnt;
856
857 async_cookie_t cookie;
858
859 int em_message_type;
860 void *private_data;
861
862#ifdef CONFIG_ATA_ACPI
863 struct ata_acpi_gtm __acpi_init_gtm;
864#endif
865
866 u8 sector_buf[ATA_SECT_SIZE] ____cacheline_aligned;
867};
868
869
870
871
872
873
874#define ATA_OP_NULL (void *)(unsigned long)(-ENOENT)
875
876struct ata_port_operations {
877
878
879
880 int (*qc_defer)(struct ata_queued_cmd *qc);
881 int (*check_atapi_dma)(struct ata_queued_cmd *qc);
882 enum ata_completion_errors (*qc_prep)(struct ata_queued_cmd *qc);
883 unsigned int (*qc_issue)(struct ata_queued_cmd *qc);
884 bool (*qc_fill_rtf)(struct ata_queued_cmd *qc);
885
886
887
888
889 int (*cable_detect)(struct ata_port *ap);
890 unsigned long (*mode_filter)(struct ata_device *dev, unsigned long xfer_mask);
891 void (*set_piomode)(struct ata_port *ap, struct ata_device *dev);
892 void (*set_dmamode)(struct ata_port *ap, struct ata_device *dev);
893 int (*set_mode)(struct ata_link *link, struct ata_device **r_failed_dev);
894 unsigned int (*read_id)(struct ata_device *dev, struct ata_taskfile *tf,
895 __le16 *id);
896
897 void (*dev_config)(struct ata_device *dev);
898
899 void (*freeze)(struct ata_port *ap);
900 void (*thaw)(struct ata_port *ap);
901 ata_prereset_fn_t prereset;
902 ata_reset_fn_t softreset;
903 ata_reset_fn_t hardreset;
904 ata_postreset_fn_t postreset;
905 ata_prereset_fn_t pmp_prereset;
906 ata_reset_fn_t pmp_softreset;
907 ata_reset_fn_t pmp_hardreset;
908 ata_postreset_fn_t pmp_postreset;
909 void (*error_handler)(struct ata_port *ap);
910 void (*lost_interrupt)(struct ata_port *ap);
911 void (*post_internal_cmd)(struct ata_queued_cmd *qc);
912 void (*sched_eh)(struct ata_port *ap);
913 void (*end_eh)(struct ata_port *ap);
914
915
916
917
918 int (*scr_read)(struct ata_link *link, unsigned int sc_reg, u32 *val);
919 int (*scr_write)(struct ata_link *link, unsigned int sc_reg, u32 val);
920 void (*pmp_attach)(struct ata_port *ap);
921 void (*pmp_detach)(struct ata_port *ap);
922 int (*set_lpm)(struct ata_link *link, enum ata_lpm_policy policy,
923 unsigned hints);
924
925
926
927
928 int (*port_suspend)(struct ata_port *ap, pm_message_t mesg);
929 int (*port_resume)(struct ata_port *ap);
930 int (*port_start)(struct ata_port *ap);
931 void (*port_stop)(struct ata_port *ap);
932 void (*host_stop)(struct ata_host *host);
933
934#ifdef CONFIG_ATA_SFF
935
936
937
938 void (*sff_dev_select)(struct ata_port *ap, unsigned int device);
939 void (*sff_set_devctl)(struct ata_port *ap, u8 ctl);
940 u8 (*sff_check_status)(struct ata_port *ap);
941 u8 (*sff_check_altstatus)(struct ata_port *ap);
942 void (*sff_tf_load)(struct ata_port *ap, const struct ata_taskfile *tf);
943 void (*sff_tf_read)(struct ata_port *ap, struct ata_taskfile *tf);
944 void (*sff_exec_command)(struct ata_port *ap,
945 const struct ata_taskfile *tf);
946 unsigned int (*sff_data_xfer)(struct ata_queued_cmd *qc,
947 unsigned char *buf, unsigned int buflen, int rw);
948 void (*sff_irq_on)(struct ata_port *);
949 bool (*sff_irq_check)(struct ata_port *);
950 void (*sff_irq_clear)(struct ata_port *);
951 void (*sff_drain_fifo)(struct ata_queued_cmd *qc);
952
953#ifdef CONFIG_ATA_BMDMA
954 void (*bmdma_setup)(struct ata_queued_cmd *qc);
955 void (*bmdma_start)(struct ata_queued_cmd *qc);
956 void (*bmdma_stop)(struct ata_queued_cmd *qc);
957 u8 (*bmdma_status)(struct ata_port *ap);
958#endif
959#endif
960
961 ssize_t (*em_show)(struct ata_port *ap, char *buf);
962 ssize_t (*em_store)(struct ata_port *ap, const char *message,
963 size_t size);
964 ssize_t (*sw_activity_show)(struct ata_device *dev, char *buf);
965 ssize_t (*sw_activity_store)(struct ata_device *dev,
966 enum sw_activity val);
967 ssize_t (*transmit_led_message)(struct ata_port *ap, u32 state,
968 ssize_t size);
969
970
971
972
973 void (*phy_reset)(struct ata_port *ap);
974 void (*eng_timeout)(struct ata_port *ap);
975
976
977
978
979
980 const struct ata_port_operations *inherits;
981};
982
983struct ata_port_info {
984 unsigned long flags;
985 unsigned long link_flags;
986 unsigned long pio_mask;
987 unsigned long mwdma_mask;
988 unsigned long udma_mask;
989 struct ata_port_operations *port_ops;
990 void *private_data;
991};
992
993struct ata_timing {
994 unsigned short mode;
995 unsigned short setup;
996 unsigned short act8b;
997 unsigned short rec8b;
998 unsigned short cyc8b;
999 unsigned short active;
1000 unsigned short recover;
1001 unsigned short dmack_hold;
1002 unsigned short cycle;
1003 unsigned short udma;
1004};
1005
1006
1007
1008
1009extern struct ata_port_operations ata_dummy_port_ops;
1010extern const struct ata_port_info ata_dummy_port_info;
1011
1012static inline bool ata_is_atapi(u8 prot)
1013{
1014 return prot & ATA_PROT_FLAG_ATAPI;
1015}
1016
1017static inline bool ata_is_pio(u8 prot)
1018{
1019 return prot & ATA_PROT_FLAG_PIO;
1020}
1021
1022static inline bool ata_is_dma(u8 prot)
1023{
1024 return prot & ATA_PROT_FLAG_DMA;
1025}
1026
1027static inline bool ata_is_ncq(u8 prot)
1028{
1029 return prot & ATA_PROT_FLAG_NCQ;
1030}
1031
1032static inline bool ata_is_data(u8 prot)
1033{
1034 return prot & (ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA);
1035}
1036
1037static inline int is_multi_taskfile(struct ata_taskfile *tf)
1038{
1039 return (tf->command == ATA_CMD_READ_MULTI) ||
1040 (tf->command == ATA_CMD_WRITE_MULTI) ||
1041 (tf->command == ATA_CMD_READ_MULTI_EXT) ||
1042 (tf->command == ATA_CMD_WRITE_MULTI_EXT) ||
1043 (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT);
1044}
1045
1046static inline int ata_port_is_dummy(struct ata_port *ap)
1047{
1048 return ap->ops == &ata_dummy_port_ops;
1049}
1050
1051extern int ata_std_prereset(struct ata_link *link, unsigned long deadline);
1052extern int ata_wait_after_reset(struct ata_link *link, unsigned long deadline,
1053 int (*check_ready)(struct ata_link *link));
1054extern int sata_std_hardreset(struct ata_link *link, unsigned int *class,
1055 unsigned long deadline);
1056extern void ata_std_postreset(struct ata_link *link, unsigned int *classes);
1057
1058extern struct ata_host *ata_host_alloc(struct device *dev, int max_ports);
1059extern struct ata_host *ata_host_alloc_pinfo(struct device *dev,
1060 const struct ata_port_info * const * ppi, int n_ports);
1061extern void ata_host_get(struct ata_host *host);
1062extern void ata_host_put(struct ata_host *host);
1063extern int ata_host_start(struct ata_host *host);
1064extern int ata_host_register(struct ata_host *host,
1065 struct scsi_host_template *sht);
1066extern int ata_host_activate(struct ata_host *host, int irq,
1067 irq_handler_t irq_handler, unsigned long irq_flags,
1068 struct scsi_host_template *sht);
1069extern void ata_host_detach(struct ata_host *host);
1070extern void ata_host_init(struct ata_host *, struct device *, struct ata_port_operations *);
1071extern int ata_scsi_detect(struct scsi_host_template *sht);
1072extern int ata_scsi_ioctl(struct scsi_device *dev, unsigned int cmd,
1073 void __user *arg);
1074#ifdef CONFIG_COMPAT
1075#define ATA_SCSI_COMPAT_IOCTL .compat_ioctl = ata_scsi_ioctl,
1076#else
1077#define ATA_SCSI_COMPAT_IOCTL
1078#endif
1079extern int ata_scsi_queuecmd(struct Scsi_Host *h, struct scsi_cmnd *cmd);
1080#if IS_REACHABLE(CONFIG_ATA)
1081bool ata_scsi_dma_need_drain(struct request *rq);
1082#else
1083#define ata_scsi_dma_need_drain NULL
1084#endif
1085extern int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *dev,
1086 unsigned int cmd, void __user *arg);
1087extern bool ata_link_online(struct ata_link *link);
1088extern bool ata_link_offline(struct ata_link *link);
1089#ifdef CONFIG_PM
1090extern void ata_host_suspend(struct ata_host *host, pm_message_t mesg);
1091extern void ata_host_resume(struct ata_host *host);
1092extern void ata_sas_port_suspend(struct ata_port *ap);
1093extern void ata_sas_port_resume(struct ata_port *ap);
1094#else
1095static inline void ata_sas_port_suspend(struct ata_port *ap)
1096{
1097}
1098static inline void ata_sas_port_resume(struct ata_port *ap)
1099{
1100}
1101#endif
1102extern int ata_ratelimit(void);
1103extern void ata_msleep(struct ata_port *ap, unsigned int msecs);
1104extern u32 ata_wait_register(struct ata_port *ap, void __iomem *reg, u32 mask,
1105 u32 val, unsigned long interval, unsigned long timeout);
1106extern int atapi_cmd_type(u8 opcode);
1107extern unsigned long ata_pack_xfermask(unsigned long pio_mask,
1108 unsigned long mwdma_mask, unsigned long udma_mask);
1109extern void ata_unpack_xfermask(unsigned long xfer_mask,
1110 unsigned long *pio_mask, unsigned long *mwdma_mask,
1111 unsigned long *udma_mask);
1112extern u8 ata_xfer_mask2mode(unsigned long xfer_mask);
1113extern unsigned long ata_xfer_mode2mask(u8 xfer_mode);
1114extern int ata_xfer_mode2shift(unsigned long xfer_mode);
1115extern const char *ata_mode_string(unsigned long xfer_mask);
1116extern unsigned long ata_id_xfermask(const u16 *id);
1117extern int ata_std_qc_defer(struct ata_queued_cmd *qc);
1118extern enum ata_completion_errors ata_noop_qc_prep(struct ata_queued_cmd *qc);
1119extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
1120 unsigned int n_elem);
1121extern unsigned int ata_dev_classify(const struct ata_taskfile *tf);
1122extern unsigned int ata_port_classify(struct ata_port *ap,
1123 const struct ata_taskfile *tf);
1124extern void ata_dev_disable(struct ata_device *adev);
1125extern void ata_id_string(const u16 *id, unsigned char *s,
1126 unsigned int ofs, unsigned int len);
1127extern void ata_id_c_string(const u16 *id, unsigned char *s,
1128 unsigned int ofs, unsigned int len);
1129extern unsigned int ata_do_dev_read_id(struct ata_device *dev,
1130 struct ata_taskfile *tf, __le16 *id);
1131extern void ata_qc_complete(struct ata_queued_cmd *qc);
1132extern u64 ata_qc_get_active(struct ata_port *ap);
1133extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd);
1134extern int ata_std_bios_param(struct scsi_device *sdev,
1135 struct block_device *bdev,
1136 sector_t capacity, int geom[]);
1137extern void ata_scsi_unlock_native_capacity(struct scsi_device *sdev);
1138extern int ata_scsi_slave_config(struct scsi_device *sdev);
1139extern void ata_scsi_slave_destroy(struct scsi_device *sdev);
1140extern int ata_scsi_change_queue_depth(struct scsi_device *sdev,
1141 int queue_depth);
1142extern int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev,
1143 int queue_depth);
1144extern struct ata_device *ata_dev_pair(struct ata_device *adev);
1145extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
1146extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap);
1147extern void ata_scsi_cmd_error_handler(struct Scsi_Host *host, struct ata_port *ap, struct list_head *eh_q);
1148
1149
1150
1151
1152#ifdef CONFIG_SATA_HOST
1153extern const unsigned long sata_deb_timing_normal[];
1154extern const unsigned long sata_deb_timing_hotplug[];
1155extern const unsigned long sata_deb_timing_long[];
1156
1157static inline const unsigned long *
1158sata_ehc_deb_timing(struct ata_eh_context *ehc)
1159{
1160 if (ehc->i.flags & ATA_EHI_HOTPLUGGED)
1161 return sata_deb_timing_hotplug;
1162 else
1163 return sata_deb_timing_normal;
1164}
1165
1166extern int sata_scr_valid(struct ata_link *link);
1167extern int sata_scr_read(struct ata_link *link, int reg, u32 *val);
1168extern int sata_scr_write(struct ata_link *link, int reg, u32 val);
1169extern int sata_scr_write_flush(struct ata_link *link, int reg, u32 val);
1170extern int sata_set_spd(struct ata_link *link);
1171extern int sata_link_hardreset(struct ata_link *link,
1172 const unsigned long *timing, unsigned long deadline,
1173 bool *online, int (*check_ready)(struct ata_link *));
1174extern int sata_link_resume(struct ata_link *link, const unsigned long *params,
1175 unsigned long deadline);
1176extern void ata_eh_analyze_ncq_error(struct ata_link *link);
1177#else
1178static inline const unsigned long *
1179sata_ehc_deb_timing(struct ata_eh_context *ehc)
1180{
1181 return NULL;
1182}
1183static inline int sata_scr_valid(struct ata_link *link) { return 0; }
1184static inline int sata_scr_read(struct ata_link *link, int reg, u32 *val)
1185{
1186 return -EOPNOTSUPP;
1187}
1188static inline int sata_scr_write(struct ata_link *link, int reg, u32 val)
1189{
1190 return -EOPNOTSUPP;
1191}
1192static inline int sata_scr_write_flush(struct ata_link *link, int reg, u32 val)
1193{
1194 return -EOPNOTSUPP;
1195}
1196static inline int sata_set_spd(struct ata_link *link) { return -EOPNOTSUPP; }
1197static inline int sata_link_hardreset(struct ata_link *link,
1198 const unsigned long *timing,
1199 unsigned long deadline,
1200 bool *online,
1201 int (*check_ready)(struct ata_link *))
1202{
1203 if (online)
1204 *online = false;
1205 return -EOPNOTSUPP;
1206}
1207static inline int sata_link_resume(struct ata_link *link,
1208 const unsigned long *params,
1209 unsigned long deadline)
1210{
1211 return -EOPNOTSUPP;
1212}
1213static inline void ata_eh_analyze_ncq_error(struct ata_link *link) { }
1214#endif
1215extern int sata_link_debounce(struct ata_link *link,
1216 const unsigned long *params, unsigned long deadline);
1217extern int sata_link_scr_lpm(struct ata_link *link, enum ata_lpm_policy policy,
1218 bool spm_wakeup);
1219extern int ata_slave_link_init(struct ata_port *ap);
1220extern void ata_sas_port_destroy(struct ata_port *);
1221extern struct ata_port *ata_sas_port_alloc(struct ata_host *,
1222 struct ata_port_info *, struct Scsi_Host *);
1223extern void ata_sas_async_probe(struct ata_port *ap);
1224extern int ata_sas_sync_probe(struct ata_port *ap);
1225extern int ata_sas_port_init(struct ata_port *);
1226extern int ata_sas_port_start(struct ata_port *ap);
1227extern int ata_sas_tport_add(struct device *parent, struct ata_port *ap);
1228extern void ata_sas_tport_delete(struct ata_port *ap);
1229extern void ata_sas_port_stop(struct ata_port *ap);
1230extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *);
1231extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap);
1232extern void ata_tf_to_fis(const struct ata_taskfile *tf,
1233 u8 pmp, int is_cmd, u8 *fis);
1234extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf);
1235extern int ata_qc_complete_multiple(struct ata_port *ap, u64 qc_active);
1236extern bool sata_lpm_ignore_phy_events(struct ata_link *link);
1237extern int sata_async_notification(struct ata_port *ap);
1238
1239extern int ata_cable_40wire(struct ata_port *ap);
1240extern int ata_cable_80wire(struct ata_port *ap);
1241extern int ata_cable_sata(struct ata_port *ap);
1242extern int ata_cable_ignore(struct ata_port *ap);
1243extern int ata_cable_unknown(struct ata_port *ap);
1244
1245
1246extern unsigned int ata_pio_need_iordy(const struct ata_device *);
1247extern u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle);
1248
1249
1250#ifdef CONFIG_PCI
1251struct pci_dev;
1252
1253struct pci_bits {
1254 unsigned int reg;
1255 unsigned int width;
1256 unsigned long mask;
1257 unsigned long val;
1258};
1259
1260extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits);
1261extern void ata_pci_shutdown_one(struct pci_dev *pdev);
1262extern void ata_pci_remove_one(struct pci_dev *pdev);
1263
1264#ifdef CONFIG_PM
1265extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg);
1266extern int __must_check ata_pci_device_do_resume(struct pci_dev *pdev);
1267extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
1268extern int ata_pci_device_resume(struct pci_dev *pdev);
1269#endif
1270#endif
1271
1272struct platform_device;
1273
1274extern int ata_platform_remove_one(struct platform_device *pdev);
1275
1276
1277
1278
1279#ifdef CONFIG_ATA_ACPI
1280static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap)
1281{
1282 if (ap->pflags & ATA_PFLAG_INIT_GTM_VALID)
1283 return &ap->__acpi_init_gtm;
1284 return NULL;
1285}
1286int ata_acpi_stm(struct ata_port *ap, const struct ata_acpi_gtm *stm);
1287int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *stm);
1288unsigned long ata_acpi_gtm_xfermask(struct ata_device *dev,
1289 const struct ata_acpi_gtm *gtm);
1290int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm);
1291#else
1292static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap)
1293{
1294 return NULL;
1295}
1296
1297static inline int ata_acpi_stm(const struct ata_port *ap,
1298 struct ata_acpi_gtm *stm)
1299{
1300 return -ENOSYS;
1301}
1302
1303static inline int ata_acpi_gtm(const struct ata_port *ap,
1304 struct ata_acpi_gtm *stm)
1305{
1306 return -ENOSYS;
1307}
1308
1309static inline unsigned int ata_acpi_gtm_xfermask(struct ata_device *dev,
1310 const struct ata_acpi_gtm *gtm)
1311{
1312 return 0;
1313}
1314
1315static inline int ata_acpi_cbl_80wire(struct ata_port *ap,
1316 const struct ata_acpi_gtm *gtm)
1317{
1318 return 0;
1319}
1320#endif
1321
1322
1323
1324
1325extern void ata_port_schedule_eh(struct ata_port *ap);
1326extern void ata_port_wait_eh(struct ata_port *ap);
1327extern int ata_link_abort(struct ata_link *link);
1328extern int ata_port_abort(struct ata_port *ap);
1329extern int ata_port_freeze(struct ata_port *ap);
1330
1331extern void ata_eh_freeze_port(struct ata_port *ap);
1332extern void ata_eh_thaw_port(struct ata_port *ap);
1333
1334extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
1335extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
1336
1337extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
1338 ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
1339 ata_postreset_fn_t postreset);
1340extern void ata_std_error_handler(struct ata_port *ap);
1341extern void ata_std_sched_eh(struct ata_port *ap);
1342extern void ata_std_end_eh(struct ata_port *ap);
1343extern int ata_link_nr_enabled(struct ata_link *link);
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366extern const struct ata_port_operations ata_base_port_ops;
1367extern const struct ata_port_operations sata_port_ops;
1368extern const struct attribute_group *ata_common_sdev_groups[];
1369
1370
1371
1372
1373
1374
1375
1376#define __ATA_BASE_SHT(drv_name) \
1377 .module = THIS_MODULE, \
1378 .name = drv_name, \
1379 .ioctl = ata_scsi_ioctl, \
1380 ATA_SCSI_COMPAT_IOCTL \
1381 .queuecommand = ata_scsi_queuecmd, \
1382 .dma_need_drain = ata_scsi_dma_need_drain, \
1383 .this_id = ATA_SHT_THIS_ID, \
1384 .emulated = ATA_SHT_EMULATED, \
1385 .proc_name = drv_name, \
1386 .slave_destroy = ata_scsi_slave_destroy, \
1387 .bios_param = ata_std_bios_param, \
1388 .unlock_native_capacity = ata_scsi_unlock_native_capacity
1389
1390#define ATA_SUBBASE_SHT(drv_name) \
1391 __ATA_BASE_SHT(drv_name), \
1392 .can_queue = ATA_DEF_QUEUE, \
1393 .tag_alloc_policy = BLK_TAG_ALLOC_RR, \
1394 .slave_configure = ata_scsi_slave_config
1395
1396#define ATA_SUBBASE_SHT_QD(drv_name, drv_qd) \
1397 __ATA_BASE_SHT(drv_name), \
1398 .can_queue = drv_qd, \
1399 .tag_alloc_policy = BLK_TAG_ALLOC_RR, \
1400 .slave_configure = ata_scsi_slave_config
1401
1402#define ATA_BASE_SHT(drv_name) \
1403 ATA_SUBBASE_SHT(drv_name), \
1404 .sdev_groups = ata_common_sdev_groups
1405
1406#ifdef CONFIG_SATA_HOST
1407extern const struct attribute_group *ata_ncq_sdev_groups[];
1408
1409#define ATA_NCQ_SHT(drv_name) \
1410 ATA_SUBBASE_SHT(drv_name), \
1411 .sdev_groups = ata_ncq_sdev_groups, \
1412 .change_queue_depth = ata_scsi_change_queue_depth
1413
1414#define ATA_NCQ_SHT_QD(drv_name, drv_qd) \
1415 ATA_SUBBASE_SHT_QD(drv_name, drv_qd), \
1416 .sdev_groups = ata_ncq_sdev_groups, \
1417 .change_queue_depth = ata_scsi_change_queue_depth
1418#endif
1419
1420
1421
1422
1423#ifdef CONFIG_SATA_PMP
1424static inline bool sata_pmp_supported(struct ata_port *ap)
1425{
1426 return ap->flags & ATA_FLAG_PMP;
1427}
1428
1429static inline bool sata_pmp_attached(struct ata_port *ap)
1430{
1431 return ap->nr_pmp_links != 0;
1432}
1433
1434static inline bool ata_is_host_link(const struct ata_link *link)
1435{
1436 return link == &link->ap->link || link == link->ap->slave_link;
1437}
1438#else
1439static inline bool sata_pmp_supported(struct ata_port *ap)
1440{
1441 return false;
1442}
1443
1444static inline bool sata_pmp_attached(struct ata_port *ap)
1445{
1446 return false;
1447}
1448
1449static inline bool ata_is_host_link(const struct ata_link *link)
1450{
1451 return true;
1452}
1453#endif
1454
1455static inline int sata_srst_pmp(struct ata_link *link)
1456{
1457 if (sata_pmp_supported(link->ap) && ata_is_host_link(link))
1458 return SATA_PMP_CTRL_PORT;
1459 return link->pmp;
1460}
1461
1462#define ata_port_printk(level, ap, fmt, ...) \
1463 pr_ ## level ("ata%u: " fmt, (ap)->print_id, ##__VA_ARGS__)
1464
1465#define ata_port_err(ap, fmt, ...) \
1466 ata_port_printk(err, ap, fmt, ##__VA_ARGS__)
1467#define ata_port_warn(ap, fmt, ...) \
1468 ata_port_printk(warn, ap, fmt, ##__VA_ARGS__)
1469#define ata_port_notice(ap, fmt, ...) \
1470 ata_port_printk(notice, ap, fmt, ##__VA_ARGS__)
1471#define ata_port_info(ap, fmt, ...) \
1472 ata_port_printk(info, ap, fmt, ##__VA_ARGS__)
1473#define ata_port_dbg(ap, fmt, ...) \
1474 ata_port_printk(debug, ap, fmt, ##__VA_ARGS__)
1475
1476#define ata_link_printk(level, link, fmt, ...) \
1477do { \
1478 if (sata_pmp_attached((link)->ap) || \
1479 (link)->ap->slave_link) \
1480 pr_ ## level ("ata%u.%02u: " fmt, \
1481 (link)->ap->print_id, \
1482 (link)->pmp, \
1483 ##__VA_ARGS__); \
1484 else \
1485 pr_ ## level ("ata%u: " fmt, \
1486 (link)->ap->print_id, \
1487 ##__VA_ARGS__); \
1488} while (0)
1489
1490#define ata_link_err(link, fmt, ...) \
1491 ata_link_printk(err, link, fmt, ##__VA_ARGS__)
1492#define ata_link_warn(link, fmt, ...) \
1493 ata_link_printk(warn, link, fmt, ##__VA_ARGS__)
1494#define ata_link_notice(link, fmt, ...) \
1495 ata_link_printk(notice, link, fmt, ##__VA_ARGS__)
1496#define ata_link_info(link, fmt, ...) \
1497 ata_link_printk(info, link, fmt, ##__VA_ARGS__)
1498#define ata_link_dbg(link, fmt, ...) \
1499 ata_link_printk(debug, link, fmt, ##__VA_ARGS__)
1500
1501#define ata_dev_printk(level, dev, fmt, ...) \
1502 pr_ ## level("ata%u.%02u: " fmt, \
1503 (dev)->link->ap->print_id, \
1504 (dev)->link->pmp + (dev)->devno, \
1505 ##__VA_ARGS__)
1506
1507#define ata_dev_err(dev, fmt, ...) \
1508 ata_dev_printk(err, dev, fmt, ##__VA_ARGS__)
1509#define ata_dev_warn(dev, fmt, ...) \
1510 ata_dev_printk(warn, dev, fmt, ##__VA_ARGS__)
1511#define ata_dev_notice(dev, fmt, ...) \
1512 ata_dev_printk(notice, dev, fmt, ##__VA_ARGS__)
1513#define ata_dev_info(dev, fmt, ...) \
1514 ata_dev_printk(info, dev, fmt, ##__VA_ARGS__)
1515#define ata_dev_dbg(dev, fmt, ...) \
1516 ata_dev_printk(debug, dev, fmt, ##__VA_ARGS__)
1517
1518void ata_print_version(const struct device *dev, const char *version);
1519
1520
1521
1522
1523extern __printf(2, 3)
1524void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...);
1525extern __printf(2, 3)
1526void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...);
1527extern void ata_ehi_clear_desc(struct ata_eh_info *ehi);
1528
1529static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi)
1530{
1531 ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1;
1532 ehi->flags |= ATA_EHI_HOTPLUGGED;
1533 ehi->action |= ATA_EH_RESET | ATA_EH_ENABLE_LINK;
1534 ehi->err_mask |= AC_ERR_ATA_BUS;
1535}
1536
1537
1538
1539
1540extern __printf(2, 3)
1541void ata_port_desc(struct ata_port *ap, const char *fmt, ...);
1542#ifdef CONFIG_PCI
1543extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset,
1544 const char *name);
1545#endif
1546
1547static inline bool ata_tag_internal(unsigned int tag)
1548{
1549 return tag == ATA_TAG_INTERNAL;
1550}
1551
1552static inline bool ata_tag_valid(unsigned int tag)
1553{
1554 return tag < ATA_MAX_QUEUE || ata_tag_internal(tag);
1555}
1556
1557#define __ata_qc_for_each(ap, qc, tag, max_tag, fn) \
1558 for ((tag) = 0; (tag) < (max_tag) && \
1559 ({ qc = fn((ap), (tag)); 1; }); (tag)++) \
1560
1561
1562
1563
1564
1565#define ata_qc_for_each_raw(ap, qc, tag) \
1566 __ata_qc_for_each(ap, qc, tag, ATA_MAX_QUEUE, __ata_qc_from_tag)
1567
1568
1569
1570
1571#define ata_qc_for_each(ap, qc, tag) \
1572 __ata_qc_for_each(ap, qc, tag, ATA_MAX_QUEUE, ata_qc_from_tag)
1573
1574
1575
1576
1577#define ata_qc_for_each_with_internal(ap, qc, tag) \
1578 __ata_qc_for_each(ap, qc, tag, ATA_MAX_QUEUE + 1, ata_qc_from_tag)
1579
1580
1581
1582
1583static inline unsigned int ata_class_enabled(unsigned int class)
1584{
1585 return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI ||
1586 class == ATA_DEV_PMP || class == ATA_DEV_SEMB ||
1587 class == ATA_DEV_ZAC;
1588}
1589
1590static inline unsigned int ata_class_disabled(unsigned int class)
1591{
1592 return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP ||
1593 class == ATA_DEV_PMP_UNSUP || class == ATA_DEV_SEMB_UNSUP ||
1594 class == ATA_DEV_ZAC_UNSUP;
1595}
1596
1597static inline unsigned int ata_class_absent(unsigned int class)
1598{
1599 return !ata_class_enabled(class) && !ata_class_disabled(class);
1600}
1601
1602static inline unsigned int ata_dev_enabled(const struct ata_device *dev)
1603{
1604 return ata_class_enabled(dev->class);
1605}
1606
1607static inline unsigned int ata_dev_disabled(const struct ata_device *dev)
1608{
1609 return ata_class_disabled(dev->class);
1610}
1611
1612static inline unsigned int ata_dev_absent(const struct ata_device *dev)
1613{
1614 return ata_class_absent(dev->class);
1615}
1616
1617
1618
1619
1620static inline int ata_link_max_devices(const struct ata_link *link)
1621{
1622 if (ata_is_host_link(link) && link->ap->flags & ATA_FLAG_SLAVE_POSS)
1623 return 2;
1624 return 1;
1625}
1626
1627static inline int ata_link_active(struct ata_link *link)
1628{
1629 return ata_tag_valid(link->active_tag) || link->sactive;
1630}
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644enum ata_link_iter_mode {
1645 ATA_LITER_EDGE,
1646
1647 ATA_LITER_HOST_FIRST,
1648 ATA_LITER_PMP_FIRST,
1649
1650};
1651
1652enum ata_dev_iter_mode {
1653 ATA_DITER_ENABLED,
1654 ATA_DITER_ENABLED_REVERSE,
1655 ATA_DITER_ALL,
1656 ATA_DITER_ALL_REVERSE,
1657};
1658
1659extern struct ata_link *ata_link_next(struct ata_link *link,
1660 struct ata_port *ap,
1661 enum ata_link_iter_mode mode);
1662
1663extern struct ata_device *ata_dev_next(struct ata_device *dev,
1664 struct ata_link *link,
1665 enum ata_dev_iter_mode mode);
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681#define ata_for_each_link(link, ap, mode) \
1682 for ((link) = ata_link_next(NULL, (ap), ATA_LITER_##mode); (link); \
1683 (link) = ata_link_next((link), (ap), ATA_LITER_##mode))
1684
1685#define ata_for_each_dev(dev, link, mode) \
1686 for ((dev) = ata_dev_next(NULL, (link), ATA_DITER_##mode); (dev); \
1687 (dev) = ata_dev_next((dev), (link), ATA_DITER_##mode))
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699static inline int ata_ncq_enabled(struct ata_device *dev)
1700{
1701 if (!IS_ENABLED(CONFIG_SATA_HOST))
1702 return 0;
1703 return (dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF |
1704 ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ;
1705}
1706
1707static inline bool ata_fpdma_dsm_supported(struct ata_device *dev)
1708{
1709 return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) &&
1710 (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET] &
1711 ATA_LOG_NCQ_SEND_RECV_DSM_TRIM);
1712}
1713
1714static inline bool ata_fpdma_read_log_supported(struct ata_device *dev)
1715{
1716 return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) &&
1717 (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET] &
1718 ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED);
1719}
1720
1721static inline bool ata_fpdma_zac_mgmt_in_supported(struct ata_device *dev)
1722{
1723 return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) &&
1724 (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OFFSET] &
1725 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_IN_SUPPORTED);
1726}
1727
1728static inline bool ata_fpdma_zac_mgmt_out_supported(struct ata_device *dev)
1729{
1730 return (dev->ncq_non_data_cmds[ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OFFSET] &
1731 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OUT);
1732}
1733
1734static inline void ata_qc_set_polling(struct ata_queued_cmd *qc)
1735{
1736 qc->tf.ctl |= ATA_NIEN;
1737}
1738
1739static inline struct ata_queued_cmd *__ata_qc_from_tag(struct ata_port *ap,
1740 unsigned int tag)
1741{
1742 if (ata_tag_valid(tag))
1743 return &ap->qcmd[tag];
1744 return NULL;
1745}
1746
1747static inline struct ata_queued_cmd *ata_qc_from_tag(struct ata_port *ap,
1748 unsigned int tag)
1749{
1750 struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag);
1751
1752 if (unlikely(!qc) || !ap->ops->error_handler)
1753 return qc;
1754
1755 if ((qc->flags & (ATA_QCFLAG_ACTIVE |
1756 ATA_QCFLAG_FAILED)) == ATA_QCFLAG_ACTIVE)
1757 return qc;
1758
1759 return NULL;
1760}
1761
1762static inline unsigned int ata_qc_raw_nbytes(struct ata_queued_cmd *qc)
1763{
1764 return qc->nbytes - min(qc->extrabytes, qc->nbytes);
1765}
1766
1767static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf)
1768{
1769 memset(tf, 0, sizeof(*tf));
1770
1771#ifdef CONFIG_ATA_SFF
1772 tf->ctl = dev->link->ap->ctl;
1773#else
1774 tf->ctl = ATA_DEVCTL_OBS;
1775#endif
1776 if (dev->devno == 0)
1777 tf->device = ATA_DEVICE_OBS;
1778 else
1779 tf->device = ATA_DEVICE_OBS | ATA_DEV1;
1780}
1781
1782static inline void ata_qc_reinit(struct ata_queued_cmd *qc)
1783{
1784 qc->dma_dir = DMA_NONE;
1785 qc->sg = NULL;
1786 qc->flags = 0;
1787 qc->cursg = NULL;
1788 qc->cursg_ofs = 0;
1789 qc->nbytes = qc->extrabytes = qc->curbytes = 0;
1790 qc->n_elem = 0;
1791 qc->err_mask = 0;
1792 qc->sect_size = ATA_SECT_SIZE;
1793
1794 ata_tf_init(qc->dev, &qc->tf);
1795
1796
1797 qc->result_tf.command = ATA_DRDY;
1798 qc->result_tf.feature = 0;
1799}
1800
1801static inline int ata_try_flush_cache(const struct ata_device *dev)
1802{
1803 return ata_id_wcache_enabled(dev->id) ||
1804 ata_id_has_flush(dev->id) ||
1805 ata_id_has_flush_ext(dev->id);
1806}
1807
1808static inline unsigned int ac_err_mask(u8 status)
1809{
1810 if (status & (ATA_BUSY | ATA_DRQ))
1811 return AC_ERR_HSM;
1812 if (status & (ATA_ERR | ATA_DF))
1813 return AC_ERR_DEV;
1814 return 0;
1815}
1816
1817static inline unsigned int __ac_err_mask(u8 status)
1818{
1819 unsigned int mask = ac_err_mask(status);
1820 if (mask == 0)
1821 return AC_ERR_OTHER;
1822 return mask;
1823}
1824
1825static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host)
1826{
1827 return *(struct ata_port **)&host->hostdata[0];
1828}
1829
1830static inline int ata_check_ready(u8 status)
1831{
1832 if (!(status & ATA_BUSY))
1833 return 1;
1834
1835
1836 if (status == 0xff)
1837 return -ENODEV;
1838
1839 return 0;
1840}
1841
1842static inline unsigned long ata_deadline(unsigned long from_jiffies,
1843 unsigned long timeout_msecs)
1844{
1845 return from_jiffies + msecs_to_jiffies(timeout_msecs);
1846}
1847
1848
1849
1850
1851
1852static inline int ata_using_mwdma(struct ata_device *adev)
1853{
1854 if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4)
1855 return 1;
1856 return 0;
1857}
1858
1859static inline int ata_using_udma(struct ata_device *adev)
1860{
1861 if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7)
1862 return 1;
1863 return 0;
1864}
1865
1866static inline int ata_dma_enabled(struct ata_device *adev)
1867{
1868 return (adev->dma_mode == 0xFF ? 0 : 1);
1869}
1870
1871
1872
1873
1874extern const struct ata_timing *ata_timing_find_mode(u8 xfer_mode);
1875extern int ata_timing_compute(struct ata_device *, unsigned short,
1876 struct ata_timing *, int, int);
1877extern void ata_timing_merge(const struct ata_timing *,
1878 const struct ata_timing *, struct ata_timing *,
1879 unsigned int);
1880
1881
1882
1883
1884#ifdef CONFIG_SATA_PMP
1885
1886extern const struct ata_port_operations sata_pmp_port_ops;
1887
1888extern int sata_pmp_qc_defer_cmd_switch(struct ata_queued_cmd *qc);
1889extern void sata_pmp_error_handler(struct ata_port *ap);
1890
1891#else
1892
1893#define sata_pmp_port_ops sata_port_ops
1894#define sata_pmp_qc_defer_cmd_switch ata_std_qc_defer
1895#define sata_pmp_error_handler ata_std_error_handler
1896
1897#endif
1898
1899
1900
1901
1902
1903#ifdef CONFIG_ATA_SFF
1904
1905extern const struct ata_port_operations ata_sff_port_ops;
1906extern const struct ata_port_operations ata_bmdma32_port_ops;
1907
1908
1909#define ATA_PIO_SHT(drv_name) \
1910 ATA_BASE_SHT(drv_name), \
1911 .sg_tablesize = LIBATA_MAX_PRD, \
1912 .dma_boundary = ATA_DMA_BOUNDARY
1913
1914extern void ata_sff_dev_select(struct ata_port *ap, unsigned int device);
1915extern u8 ata_sff_check_status(struct ata_port *ap);
1916extern void ata_sff_pause(struct ata_port *ap);
1917extern void ata_sff_dma_pause(struct ata_port *ap);
1918extern int ata_sff_busy_sleep(struct ata_port *ap,
1919 unsigned long timeout_pat, unsigned long timeout);
1920extern int ata_sff_wait_ready(struct ata_link *link, unsigned long deadline);
1921extern void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf);
1922extern void ata_sff_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
1923extern void ata_sff_exec_command(struct ata_port *ap,
1924 const struct ata_taskfile *tf);
1925extern unsigned int ata_sff_data_xfer(struct ata_queued_cmd *qc,
1926 unsigned char *buf, unsigned int buflen, int rw);
1927extern unsigned int ata_sff_data_xfer32(struct ata_queued_cmd *qc,
1928 unsigned char *buf, unsigned int buflen, int rw);
1929extern void ata_sff_irq_on(struct ata_port *ap);
1930extern void ata_sff_irq_clear(struct ata_port *ap);
1931extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
1932 u8 status, int in_wq);
1933extern void ata_sff_queue_work(struct work_struct *work);
1934extern void ata_sff_queue_delayed_work(struct delayed_work *dwork,
1935 unsigned long delay);
1936extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay);
1937extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc);
1938extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc);
1939extern unsigned int ata_sff_port_intr(struct ata_port *ap,
1940 struct ata_queued_cmd *qc);
1941extern irqreturn_t ata_sff_interrupt(int irq, void *dev_instance);
1942extern void ata_sff_lost_interrupt(struct ata_port *ap);
1943extern void ata_sff_freeze(struct ata_port *ap);
1944extern void ata_sff_thaw(struct ata_port *ap);
1945extern int ata_sff_prereset(struct ata_link *link, unsigned long deadline);
1946extern unsigned int ata_sff_dev_classify(struct ata_device *dev, int present,
1947 u8 *r_err);
1948extern int ata_sff_wait_after_reset(struct ata_link *link, unsigned int devmask,
1949 unsigned long deadline);
1950extern int ata_sff_softreset(struct ata_link *link, unsigned int *classes,
1951 unsigned long deadline);
1952extern int sata_sff_hardreset(struct ata_link *link, unsigned int *class,
1953 unsigned long deadline);
1954extern void ata_sff_postreset(struct ata_link *link, unsigned int *classes);
1955extern void ata_sff_drain_fifo(struct ata_queued_cmd *qc);
1956extern void ata_sff_error_handler(struct ata_port *ap);
1957extern void ata_sff_std_ports(struct ata_ioports *ioaddr);
1958#ifdef CONFIG_PCI
1959extern int ata_pci_sff_init_host(struct ata_host *host);
1960extern int ata_pci_sff_prepare_host(struct pci_dev *pdev,
1961 const struct ata_port_info * const * ppi,
1962 struct ata_host **r_host);
1963extern int ata_pci_sff_activate_host(struct ata_host *host,
1964 irq_handler_t irq_handler,
1965 struct scsi_host_template *sht);
1966extern int ata_pci_sff_init_one(struct pci_dev *pdev,
1967 const struct ata_port_info * const * ppi,
1968 struct scsi_host_template *sht, void *host_priv, int hflags);
1969#endif
1970
1971#ifdef CONFIG_ATA_BMDMA
1972
1973extern const struct ata_port_operations ata_bmdma_port_ops;
1974
1975#define ATA_BMDMA_SHT(drv_name) \
1976 ATA_BASE_SHT(drv_name), \
1977 .sg_tablesize = LIBATA_MAX_PRD, \
1978 .dma_boundary = ATA_DMA_BOUNDARY
1979
1980extern enum ata_completion_errors ata_bmdma_qc_prep(struct ata_queued_cmd *qc);
1981extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc);
1982extern enum ata_completion_errors ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc);
1983extern unsigned int ata_bmdma_port_intr(struct ata_port *ap,
1984 struct ata_queued_cmd *qc);
1985extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance);
1986extern void ata_bmdma_error_handler(struct ata_port *ap);
1987extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc);
1988extern void ata_bmdma_irq_clear(struct ata_port *ap);
1989extern void ata_bmdma_setup(struct ata_queued_cmd *qc);
1990extern void ata_bmdma_start(struct ata_queued_cmd *qc);
1991extern void ata_bmdma_stop(struct ata_queued_cmd *qc);
1992extern u8 ata_bmdma_status(struct ata_port *ap);
1993extern int ata_bmdma_port_start(struct ata_port *ap);
1994extern int ata_bmdma_port_start32(struct ata_port *ap);
1995
1996#ifdef CONFIG_PCI
1997extern int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev);
1998extern void ata_pci_bmdma_init(struct ata_host *host);
1999extern int ata_pci_bmdma_prepare_host(struct pci_dev *pdev,
2000 const struct ata_port_info * const * ppi,
2001 struct ata_host **r_host);
2002extern int ata_pci_bmdma_init_one(struct pci_dev *pdev,
2003 const struct ata_port_info * const * ppi,
2004 struct scsi_host_template *sht,
2005 void *host_priv, int hflags);
2006#endif
2007#endif
2008
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2021
2022static inline u8 ata_sff_busy_wait(struct ata_port *ap, unsigned int bits,
2023 unsigned int max)
2024{
2025 u8 status;
2026
2027 do {
2028 udelay(10);
2029 status = ap->ops->sff_check_status(ap);
2030 max--;
2031 } while (status != 0xff && (status & bits) && (max > 0));
2032
2033 return status;
2034}
2035
2036
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2040
2041
2042
2043
2044
2045
2046static inline u8 ata_wait_idle(struct ata_port *ap)
2047{
2048 u8 status = ata_sff_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
2049
2050 if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ)))
2051 ata_port_dbg(ap, "abnormal Status 0x%X\n", status);
2052
2053 return status;
2054}
2055#endif
2056
2057#endif
2058