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c82ee6d3 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 | 2 | /* |
af36d7f0 JG |
3 | * Copyright 2003-2005 Red Hat, Inc. All rights reserved. |
4 | * Copyright 2003-2005 Jeff Garzik | |
5 | * | |
af36d7f0 | 6 | * libata documentation is available via 'make {ps|pdf}docs', |
9bb9a39c | 7 | * as Documentation/driver-api/libata.rst |
1da177e4 LT |
8 | */ |
9 | ||
10 | #ifndef __LINUX_LIBATA_H__ | |
11 | #define __LINUX_LIBATA_H__ | |
12 | ||
13 | #include <linux/delay.h> | |
341c2c95 | 14 | #include <linux/jiffies.h> |
1da177e4 | 15 | #include <linux/interrupt.h> |
1c72d8d9 | 16 | #include <linux/dma-mapping.h> |
87260216 | 17 | #include <linux/scatterlist.h> |
f0d36efd | 18 | #include <linux/io.h> |
1da177e4 LT |
19 | #include <linux/ata.h> |
20 | #include <linux/workqueue.h> | |
35bb94b1 | 21 | #include <scsi/scsi_host.h> |
11ef697b | 22 | #include <linux/acpi.h> |
ceb0c642 | 23 | #include <linux/cdrom.h> |
c0c362b6 | 24 | #include <linux/sched.h> |
b5292111 | 25 | #include <linux/async.h> |
1da177e4 | 26 | |
a6d967a4 JG |
27 | /* |
28 | * Define if arch has non-standard setup. This is a _PCI_ standard | |
29 | * not a legacy or ISA standard. | |
30 | */ | |
31 | #ifdef CONFIG_ATA_NONSTANDARD | |
2ec7df04 | 32 | #include <asm/libata-portmap.h> |
a6d967a4 | 33 | #else |
dcd3ea81 CH |
34 | #define ATA_PRIMARY_IRQ(dev) 14 |
35 | #define ATA_SECONDARY_IRQ(dev) 15 | |
a6d967a4 | 36 | #endif |
2ec7df04 | 37 | |
1da177e4 | 38 | /* |
bfd60579 RD |
39 | * compile-time options: to be removed as soon as all the drivers are |
40 | * converted to the new debugging mechanism | |
1da177e4 | 41 | */ |
1da177e4 | 42 | #undef ATA_IRQ_TRAP /* define to ack screaming irqs */ |
1da177e4 LT |
43 | |
44 | ||
06296a1e JP |
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 | ||
1da177e4 LT |
55 | /* defines only for the constants which don't work well as enums */ |
56 | #define ATA_TAG_POISON 0xfafbfcfdU | |
57 | ||
1da177e4 LT |
58 | enum { |
59 | /* various global constants */ | |
60 | LIBATA_MAX_PRD = ATA_MAX_PRD / 2, | |
d26fc955 | 61 | LIBATA_DUMB_MAX_PRD = ATA_MAX_PRD / 4, /* Worst case */ |
1da177e4 | 62 | ATA_DEF_QUEUE = 1, |
a6e6ce8e | 63 | ATA_MAX_QUEUE = 32, |
28361c40 | 64 | ATA_TAG_INTERNAL = ATA_MAX_QUEUE, |
341c2c95 | 65 | ATA_SHORT_PAUSE = 16, |
1da177e4 | 66 | |
140b5e59 TH |
67 | ATAPI_MAX_DRAIN = 16 << 10, |
68 | ||
b558eddd TH |
69 | ATA_ALL_DEVICES = (1 << ATA_MAX_DEVICES) - 1, |
70 | ||
1da177e4 | 71 | ATA_SHT_EMULATED = 1, |
1da177e4 | 72 | ATA_SHT_THIS_ID = -1, |
1da177e4 | 73 | |
dc34e7e1 SS |
74 | /* struct ata_taskfile flags */ |
75 | ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */ | |
76 | ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */ | |
77 | ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */ | |
78 | ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */ | |
79 | ATA_TFLAG_LBA = (1 << 4), /* enable LBA */ | |
80 | ATA_TFLAG_FUA = (1 << 5), /* enable FUA */ | |
81 | ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */ | |
82 | ||
1da177e4 | 83 | /* struct ata_device stuff */ |
949b38af TH |
84 | ATA_DFLAG_LBA = (1 << 0), /* device supports LBA */ |
85 | ATA_DFLAG_LBA48 = (1 << 1), /* device supports LBA48 */ | |
029f5468 | 86 | ATA_DFLAG_CDB_INTR = (1 << 2), /* device asserts INTRQ when ready for CDB */ |
88e49034 | 87 | ATA_DFLAG_NCQ = (1 << 3), /* device supports NCQ */ |
6fc49adb | 88 | ATA_DFLAG_FLUSH_EXT = (1 << 4), /* do FLUSH_EXT instead of FLUSH */ |
6746544c TH |
89 | ATA_DFLAG_ACPI_PENDING = (1 << 5), /* ACPI resume action pending */ |
90 | ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */ | |
7d77b247 | 91 | ATA_DFLAG_AN = (1 << 7), /* AN configured */ |
818831c8 | 92 | ATA_DFLAG_TRUSTED = (1 << 8), /* device supports trusted send/recv */ |
4d2e4980 | 93 | ATA_DFLAG_FUA = (1 << 9), /* device supports FUA */ |
91163006 | 94 | ATA_DFLAG_DMADIR = (1 << 10), /* device requires DMADIR */ |
87aab3c4 NC |
95 | ATA_DFLAG_NCQ_SEND_RECV = (1 << 11), /* device supports NCQ SEND and RECV */ |
96 | ATA_DFLAG_NCQ_PRIO = (1 << 12), /* device supports NCQ priority */ | |
97 | ATA_DFLAG_CFG_MASK = (1 << 13) - 1, | |
949b38af | 98 | |
87aab3c4 NC |
99 | ATA_DFLAG_PIO = (1 << 13), /* device limited to PIO mode */ |
100 | ATA_DFLAG_NCQ_OFF = (1 << 14), /* device limited to non-NCQ mode */ | |
054a5fba | 101 | ATA_DFLAG_SLEEPING = (1 << 15), /* device is sleeping */ |
00115e0f | 102 | ATA_DFLAG_DUBIOUS_XFER = (1 << 16), /* data transfer not verified */ |
45fabbb7 | 103 | ATA_DFLAG_NO_UNLOAD = (1 << 17), /* device doesn't support unload */ |
445d211b | 104 | ATA_DFLAG_UNLOCK_HPA = (1 << 18), /* unlock HPA */ |
87aab3c4 | 105 | ATA_DFLAG_INIT_MASK = (1 << 19) - 1, |
1da177e4 | 106 | |
87aab3c4 | 107 | ATA_DFLAG_NCQ_PRIO_ENABLED = (1 << 19), /* Priority cmds sent to dev */ |
f20ded38 TH |
108 | ATA_DFLAG_DETACH = (1 << 24), |
109 | ATA_DFLAG_DETACHED = (1 << 25), | |
b1354cbb | 110 | ATA_DFLAG_DA = (1 << 26), /* device supports Device Attention */ |
65fe1f0f | 111 | ATA_DFLAG_DEVSLP = (1 << 27), /* device supports Device Sleep */ |
0d0cdb02 | 112 | ATA_DFLAG_ACPI_DISABLED = (1 << 28), /* ACPI for the device is disabled */ |
06dbde5f | 113 | ATA_DFLAG_D_SENSE = (1 << 29), /* Descriptor sense requested */ |
6d1003ae | 114 | ATA_DFLAG_ZAC = (1 << 30), /* ZAC device */ |
b1354cbb | 115 | |
4d2e4980 DLM |
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 | ATA_DFLAG_FUA), | |
d633b8a7 | 119 | |
1da177e4 LT |
120 | ATA_DEV_UNKNOWN = 0, /* unknown device */ |
121 | ATA_DEV_ATA = 1, /* ATA device */ | |
122 | ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */ | |
123 | ATA_DEV_ATAPI = 3, /* ATAPI device */ | |
124 | ATA_DEV_ATAPI_UNSUP = 4, /* ATAPI device (unsupported) */ | |
e0a71752 TH |
125 | ATA_DEV_PMP = 5, /* SATA port multiplier */ |
126 | ATA_DEV_PMP_UNSUP = 6, /* SATA port multiplier (unsupported) */ | |
127 | ATA_DEV_SEMB = 7, /* SEMB */ | |
128 | ATA_DEV_SEMB_UNSUP = 8, /* SEMB (unsupported) */ | |
9162c657 | 129 | ATA_DEV_ZAC = 9, /* ZAC device */ |
3a92945b HR |
130 | ATA_DEV_ZAC_UNSUP = 10, /* ZAC device (unsupported) */ |
131 | ATA_DEV_NONE = 11, /* no device */ | |
1da177e4 | 132 | |
0c88758b | 133 | /* struct ata_link flags */ |
8ba5a45c | 134 | /* NOTE: struct ata_force_param currently stores lflags in u16 */ |
05944bdf | 135 | ATA_LFLAG_NO_HRST = (1 << 1), /* avoid hardreset */ |
ae791c05 TH |
136 | ATA_LFLAG_NO_SRST = (1 << 2), /* avoid softreset */ |
137 | ATA_LFLAG_ASSUME_ATA = (1 << 3), /* assume ATA class */ | |
138 | ATA_LFLAG_ASSUME_SEMB = (1 << 4), /* assume SEMB class */ | |
139 | ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB, | |
fd995f70 | 140 | ATA_LFLAG_NO_RETRY = (1 << 5), /* don't retry this link */ |
f9df58cb | 141 | ATA_LFLAG_DISABLED = (1 << 6), /* link is disabled */ |
18f7ba4c | 142 | ATA_LFLAG_SW_ACTIVITY = (1 << 7), /* keep activity stats */ |
6b7ae954 | 143 | ATA_LFLAG_NO_LPM = (1 << 8), /* disable LPM on this link */ |
ca6d43b0 | 144 | ATA_LFLAG_RST_ONCE = (1 << 9), /* limit recovery to one reset */ |
09c5b480 | 145 | ATA_LFLAG_CHANGED = (1 << 10), /* LPM state changed on this link */ |
b9ba367c | 146 | ATA_LFLAG_NO_DEBOUNCE_DELAY = (1 << 11), /* no debounce delay on link resume */ |
0c88758b | 147 | |
1da177e4 | 148 | /* struct ata_port flags */ |
949b38af | 149 | ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */ |
1da177e4 | 150 | /* (doesn't imply presence) */ |
949b38af | 151 | ATA_FLAG_SATA = (1 << 1), |
240630e6 | 152 | ATA_FLAG_NO_LPM = (1 << 2), /* host not happy with LPM */ |
ea013a9b | 153 | ATA_FLAG_NO_LOG_PAGE = (1 << 5), /* do not issue log page read */ |
949b38af TH |
154 | ATA_FLAG_NO_ATAPI = (1 << 6), /* No ATAPI support */ |
155 | ATA_FLAG_PIO_DMA = (1 << 7), /* PIO cmds via DMA */ | |
156 | ATA_FLAG_PIO_LBA48 = (1 << 8), /* Host DMA engine is LBA28 only */ | |
7395acb2 TH |
157 | ATA_FLAG_PIO_POLLING = (1 << 9), /* use polling PIO if LLD |
158 | * doesn't handle PIO interrupts */ | |
159 | ATA_FLAG_NCQ = (1 << 10), /* host supports NCQ */ | |
2a6e58d2 RW |
160 | ATA_FLAG_NO_POWEROFF_SPINDOWN = (1 << 11), /* don't spindown before poweroff */ |
161 | ATA_FLAG_NO_HIBERNATE_SPINDOWN = (1 << 12), /* don't spindown before hibernation */ | |
7395acb2 | 162 | ATA_FLAG_DEBUGMSG = (1 << 13), |
388539f3 | 163 | ATA_FLAG_FPDMA_AA = (1 << 14), /* driver supports Auto-Activate */ |
b2a8bbe6 | 164 | ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */ |
f834e49f | 165 | ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */ |
3cadbcc0 | 166 | ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */ |
9f45cbd3 | 167 | ATA_FLAG_AN = (1 << 18), /* controller supports AN */ |
e0a71752 | 168 | ATA_FLAG_PMP = (1 << 19), /* controller supports PMP */ |
40fb59e7 | 169 | ATA_FLAG_FPDMA_AUX = (1 << 20), /* controller supports H2DFIS aux field */ |
18f7ba4c KCA |
170 | ATA_FLAG_EM = (1 << 21), /* driver supports enclosure |
171 | * management */ | |
172 | ATA_FLAG_SW_ACTIVITY = (1 << 22), /* driver supports sw activity | |
173 | * led */ | |
ae01b249 | 174 | ATA_FLAG_NO_DIPM = (1 << 23), /* host not happy with DIPM */ |
a1480a16 | 175 | ATA_FLAG_SAS_HOST = (1 << 24), /* SAS host */ |
949b38af | 176 | |
b51e9e5d | 177 | /* bits 24:31 of ap->flags are reserved for LLD specific flags */ |
9ec957f2 | 178 | |
e3cf95dd | 179 | |
b51e9e5d TH |
180 | /* struct ata_port pflags */ |
181 | ATA_PFLAG_EH_PENDING = (1 << 0), /* EH pending */ | |
182 | ATA_PFLAG_EH_IN_PROGRESS = (1 << 1), /* EH in progress */ | |
183 | ATA_PFLAG_FROZEN = (1 << 2), /* port is frozen */ | |
184 | ATA_PFLAG_RECOVERED = (1 << 3), /* recovery action performed */ | |
185 | ATA_PFLAG_LOADING = (1 << 4), /* boot/loading probe */ | |
b51e9e5d | 186 | ATA_PFLAG_SCSI_HOTPLUG = (1 << 6), /* SCSI hotplug scheduled */ |
f4d6d004 | 187 | ATA_PFLAG_INITIALIZING = (1 << 7), /* being initialized, don't touch */ |
afaa5c37 | 188 | ATA_PFLAG_RESETTING = (1 << 8), /* reset in progress */ |
ece180d1 TH |
189 | ATA_PFLAG_UNLOADING = (1 << 9), /* driver is being unloaded */ |
190 | ATA_PFLAG_UNLOADED = (1 << 10), /* driver is unloaded */ | |
949b38af | 191 | |
b51e9e5d | 192 | ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */ |
500530f6 | 193 | ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */ |
c05e6ff0 | 194 | ATA_PFLAG_INIT_GTM_VALID = (1 << 19), /* initial gtm data valid */ |
949b38af | 195 | |
e3cf95dd AC |
196 | ATA_PFLAG_PIO32 = (1 << 20), /* 32bit PIO */ |
197 | ATA_PFLAG_PIO32CHANGE = (1 << 21), /* 32bit PIO can be turned on/off */ | |
8a3e33cf | 198 | ATA_PFLAG_EXTERNAL = (1 << 22), /* eSATA/external port */ |
e3cf95dd | 199 | |
949b38af TH |
200 | /* struct ata_queued_cmd flags */ |
201 | ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */ | |
001102d7 | 202 | ATA_QCFLAG_DMAMAP = (1 << 1), /* SG table is DMA mapped */ |
93c4aa44 | 203 | ATA_QCFLAG_RTF_FILLED = (1 << 2), /* result TF has been filled */ |
27197367 | 204 | ATA_QCFLAG_IO = (1 << 3), /* standard IO command */ |
e61e0672 | 205 | ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */ |
da917d69 | 206 | ATA_QCFLAG_CLEAR_EXCL = (1 << 5), /* clear excl_link on completion */ |
e027bd36 | 207 | ATA_QCFLAG_QUIET = (1 << 6), /* don't report device error */ |
03faab78 | 208 | ATA_QCFLAG_RETRY = (1 << 7), /* retry after failure */ |
e61e0672 | 209 | |
87629312 | 210 | ATA_QCFLAG_EH = (1 << 16), /* cmd aborted and owned by EH */ |
9ec957f2 TH |
211 | ATA_QCFLAG_SENSE_VALID = (1 << 17), /* sense data valid */ |
212 | ATA_QCFLAG_EH_SCHEDULED = (1 << 18), /* EH scheduled (obsolete) */ | |
1da177e4 | 213 | |
4e5ec5db | 214 | /* host set flags */ |
cca3974e | 215 | ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */ |
ecef7253 | 216 | ATA_HOST_STARTED = (1 << 1), /* Host started */ |
886ad09f | 217 | ATA_HOST_PARALLEL_SCAN = (1 << 2), /* Ports on this host can be scanned in parallel */ |
db63a4c8 | 218 | ATA_HOST_IGNORE_ATA = (1 << 3), /* Ignore ATA devices on this host. */ |
9bec2e38 | 219 | |
b8b275ef TH |
220 | /* bits 24:31 of host->flags are reserved for LLD specific flags */ |
221 | ||
1da177e4 | 222 | /* various lengths of time */ |
341c2c95 TH |
223 | ATA_TMOUT_BOOT = 30000, /* heuristic */ |
224 | ATA_TMOUT_BOOT_QUICK = 7000, /* heuristic */ | |
341c2c95 | 225 | ATA_TMOUT_INTERNAL_QUICK = 5000, |
45fabbb7 | 226 | ATA_TMOUT_MAX_PARK = 30000, |
1da177e4 | 227 | |
b48d58f5 TH |
228 | /* |
229 | * GoVault needs 2s and iVDR disk HHD424020F7SV00 800ms. 2s | |
230 | * is too much without parallel probing. Use 2s if parallel | |
231 | * probing is available, 800ms otherwise. | |
88ff6eaf | 232 | */ |
b48d58f5 TH |
233 | ATA_TMOUT_FF_WAIT_LONG = 2000, |
234 | ATA_TMOUT_FF_WAIT = 800, | |
88ff6eaf | 235 | |
705e76be TH |
236 | /* Spec mandates to wait for ">= 2ms" before checking status |
237 | * after reset. We wait 150ms, because that was the magic | |
238 | * delay used for ATAPI devices in Hale Landis's ATADRVR, for | |
239 | * the period of time between when the ATA command register is | |
240 | * written, and then status is checked. Because waiting for | |
241 | * "a while" before checking status is fine, post SRST, we | |
242 | * perform this magic delay here as well. | |
243 | * | |
244 | * Old drivers/ide uses the 2mS rule and then waits for ready. | |
245 | */ | |
341c2c95 | 246 | ATA_WAIT_AFTER_RESET = 150, |
705e76be | 247 | |
9dadd45b TH |
248 | /* If PMP is supported, we have to do follow-up SRST. As some |
249 | * PMPs don't send D2H Reg FIS after hardreset, LLDs are | |
250 | * advised to wait only for the following duration before | |
251 | * doing SRST. | |
252 | */ | |
e7d3ef13 | 253 | ATA_TMOUT_PMP_SRST_WAIT = 5000, |
9dadd45b | 254 | |
09c5b480 GM |
255 | /* When the LPM policy is set to ATA_LPM_MAX_POWER, there might |
256 | * be a spurious PHY event, so ignore the first PHY event that | |
257 | * occurs within 10s after the policy change. | |
258 | */ | |
259 | ATA_TMOUT_SPURIOUS_PHY = 10000, | |
260 | ||
1da177e4 LT |
261 | /* ATA bus states */ |
262 | BUS_UNKNOWN = 0, | |
263 | BUS_DMA = 1, | |
264 | BUS_IDLE = 2, | |
265 | BUS_NOINTR = 3, | |
266 | BUS_NODATA = 4, | |
267 | BUS_TIMER = 5, | |
268 | BUS_PIO = 6, | |
269 | BUS_EDD = 7, | |
270 | BUS_IDENTIFY = 8, | |
271 | BUS_PACKET = 9, | |
272 | ||
273 | /* SATA port states */ | |
274 | PORT_UNKNOWN = 0, | |
275 | PORT_ENABLED = 1, | |
276 | PORT_DISABLED = 2, | |
277 | ||
278 | /* encoding various smaller bitmaps into a single | |
f0a6d77b | 279 | * unsigned int bitmap |
1da177e4 | 280 | */ |
70cd071e TH |
281 | ATA_NR_PIO_MODES = 7, |
282 | ATA_NR_MWDMA_MODES = 5, | |
283 | ATA_NR_UDMA_MODES = 8, | |
1da7b0d0 TH |
284 | |
285 | ATA_SHIFT_PIO = 0, | |
70cd071e TH |
286 | ATA_SHIFT_MWDMA = ATA_SHIFT_PIO + ATA_NR_PIO_MODES, |
287 | ATA_SHIFT_UDMA = ATA_SHIFT_MWDMA + ATA_NR_MWDMA_MODES, | |
8e061784 | 288 | ATA_SHIFT_PRIO = 6, |
70cd071e | 289 | |
8e061784 | 290 | ATA_PRIO_HIGH = 2, |
cedc9a47 JG |
291 | /* size of buffer to pad xfers ending on unaligned boundaries */ |
292 | ATA_DMA_PAD_SZ = 4, | |
949b38af | 293 | |
0c247c55 TH |
294 | /* ering size */ |
295 | ATA_ERING_SIZE = 32, | |
296 | ||
31cc23b3 TH |
297 | /* return values for ->qc_defer */ |
298 | ATA_DEFER_LINK = 1, | |
299 | ATA_DEFER_PORT = 2, | |
300 | ||
f3e81b19 TH |
301 | /* desc_len for ata_eh_info and context */ |
302 | ATA_EH_DESC_LEN = 80, | |
303 | ||
9be1e979 TH |
304 | /* reset / recovery action types */ |
305 | ATA_EH_REVALIDATE = (1 << 0), | |
cf480626 TH |
306 | ATA_EH_SOFTRESET = (1 << 1), /* meaningful only in ->prereset */ |
307 | ATA_EH_HARDRESET = (1 << 2), /* meaningful only in ->prereset */ | |
308 | ATA_EH_RESET = ATA_EH_SOFTRESET | ATA_EH_HARDRESET, | |
f9df58cb | 309 | ATA_EH_ENABLE_LINK = (1 << 3), |
45fabbb7 | 310 | ATA_EH_PARK = (1 << 5), /* unload heads and stop I/O */ |
9be1e979 | 311 | |
45fabbb7 | 312 | ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_PARK, |
b5b3fa38 | 313 | ATA_EH_ALL_ACTIONS = ATA_EH_REVALIDATE | ATA_EH_RESET | |
6b7ae954 | 314 | ATA_EH_ENABLE_LINK, |
9be1e979 | 315 | |
f3e81b19 | 316 | /* ata_eh_info->flags */ |
abdda733 | 317 | ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */ |
1cdaf534 TH |
318 | ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */ |
319 | ATA_EHI_QUIET = (1 << 3), /* be quiet */ | |
e2f3d75f | 320 | ATA_EHI_NO_RECOVERY = (1 << 4), /* no recovery */ |
abdda733 | 321 | |
0d64a233 TH |
322 | ATA_EHI_DID_SOFTRESET = (1 << 16), /* already soft-reset this port */ |
323 | ATA_EHI_DID_HARDRESET = (1 << 17), /* already soft-reset this port */ | |
324 | ATA_EHI_PRINTINFO = (1 << 18), /* print configuration info */ | |
325 | ATA_EHI_SETMODE = (1 << 19), /* configure transfer mode */ | |
89692c03 | 326 | ATA_EHI_POST_SETMODE = (1 << 20), /* revalidating after setmode */ |
f3e81b19 | 327 | |
0d64a233 | 328 | ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET, |
13abf50d | 329 | |
848e4c68 TH |
330 | /* mask of flags to transfer *to* the slave link */ |
331 | ATA_EHI_TO_SLAVE_MASK = ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, | |
332 | ||
a1e10f7e TH |
333 | /* max tries if error condition is still set after ->error_handler */ |
334 | ATA_EH_MAX_TRIES = 5, | |
ad9e2762 | 335 | |
5040ab67 TH |
336 | /* sometimes resuming a link requires several retries */ |
337 | ATA_LINK_RESUME_TRIES = 5, | |
338 | ||
14d2bac1 TH |
339 | /* how hard are we gonna try to probe/recover devices */ |
340 | ATA_PROBE_MAX_TRIES = 3, | |
022bdb07 | 341 | ATA_EH_DEV_TRIES = 3, |
e0a71752 TH |
342 | ATA_EH_PMP_TRIES = 5, |
343 | ATA_EH_PMP_LINK_TRIES = 3, | |
344 | ||
bf1bff6f | 345 | SATA_PMP_RW_TIMEOUT = 3000, /* PMP read/write timeout */ |
f5914a46 | 346 | |
87fbc5a0 TH |
347 | /* This should match the actual table size of |
348 | * ata_eh_cmd_timeout_table in libata-eh.c. | |
349 | */ | |
68dbbe7d | 350 | ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 7, |
87fbc5a0 | 351 | |
93590859 | 352 | /* Horkage types. May be set by libata or controller on drives |
25985edc | 353 | (some horkage may be drive/controller pair dependent */ |
93590859 AC |
354 | |
355 | ATA_HORKAGE_DIAGNOSTIC = (1 << 0), /* Failed boot diag */ | |
6919a0a6 AC |
356 | ATA_HORKAGE_NODMA = (1 << 1), /* DMA problems */ |
357 | ATA_HORKAGE_NONCQ = (1 << 2), /* Don't use NCQ */ | |
18d6e9d5 | 358 | ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */ |
16c55b03 | 359 | ATA_HORKAGE_BROKEN_HPA = (1 << 4), /* Broken HPA */ |
50af2fa1 | 360 | ATA_HORKAGE_DISABLE = (1 << 5), /* Disable it */ |
93328e11 | 361 | ATA_HORKAGE_HPA_SIZE = (1 << 6), /* native size off by one */ |
6bbfd53d | 362 | ATA_HORKAGE_IVB = (1 << 8), /* cbl det validity bit bugs */ |
2d3b8eea | 363 | ATA_HORKAGE_STUCK_ERR = (1 << 9), /* stuck ERR on next PACKET */ |
9ce8e307 | 364 | ATA_HORKAGE_BRIDGE_OK = (1 << 10), /* no bridge limits */ |
6a87e42e TH |
365 | ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11), /* use ATAPI DMA for commands |
366 | not multiple of 16 bytes */ | |
877d0310 | 367 | ATA_HORKAGE_FIRMWARE_WARN = (1 << 12), /* firmware update warning */ |
9062712f | 368 | ATA_HORKAGE_1_5_GBPS = (1 << 13), /* force 1.5 Gbps */ |
d0cb43b3 | 369 | ATA_HORKAGE_NOSETXFER = (1 << 14), /* skip SETXFER, SATA only */ |
388539f3 | 370 | ATA_HORKAGE_BROKEN_FPDMA_AA = (1 << 15), /* skip AA */ |
43c9c591 | 371 | ATA_HORKAGE_DUMP_ID = (1 << 16), /* dump IDENTIFY data */ |
a32450e1 | 372 | ATA_HORKAGE_MAX_SEC_LBA48 = (1 << 17), /* Set max sects to 65535 */ |
966fbe19 | 373 | ATA_HORKAGE_ATAPI_DMADIR = (1 << 18), /* device requires dmadir */ |
f78dea06 | 374 | ATA_HORKAGE_NO_NCQ_TRIM = (1 << 19), /* don't use queued TRIM */ |
ecd75ad5 TH |
375 | ATA_HORKAGE_NOLPM = (1 << 20), /* don't use LPM */ |
376 | ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21), /* some WDs have broken LPM */ | |
e61f7d1c | 377 | ATA_HORKAGE_ZERO_AFTER_TRIM = (1 << 22),/* guarantees zero after trim */ |
7cfdfdc8 | 378 | ATA_HORKAGE_NO_DMA_LOG = (1 << 23), /* don't use DMA for log read */ |
71d126fd | 379 | ATA_HORKAGE_NOTRIM = (1 << 24), /* don't use TRIM */ |
af34d637 | 380 | ATA_HORKAGE_MAX_SEC_1024 = (1 << 25), /* Limit max sects to 1024 */ |
3b545563 | 381 | ATA_HORKAGE_MAX_TRIM_128M = (1 << 26), /* Limit max trim size to 128M */ |
7a8526a5 | 382 | ATA_HORKAGE_NO_NCQ_ON_ATI = (1 << 27), /* Disable NCQ on ATI chipset */ |
636f6e2a | 383 | ATA_HORKAGE_NO_ID_DEV_LOG = (1 << 28), /* Identify device log missing */ |
ac9f0c81 | 384 | ATA_HORKAGE_NO_LOG_DIR = (1 << 29), /* Do not read log directory */ |
4d2e4980 | 385 | ATA_HORKAGE_NO_FUA = (1 << 30), /* Do not use FUA */ |
b3a70601 | 386 | |
2dcb407e | 387 | /* DMA mask for user DMA control: User visible values; DO NOT |
b3a70601 AC |
388 | renumber */ |
389 | ATA_DMA_MASK_ATA = (1 << 0), /* DMA on ATA Disk */ | |
390 | ATA_DMA_MASK_ATAPI = (1 << 1), /* DMA on ATAPI */ | |
391 | ATA_DMA_MASK_CFA = (1 << 2), /* DMA on CF Card */ | |
ceb0c642 TH |
392 | |
393 | /* ATAPI command types */ | |
394 | ATAPI_READ = 0, /* READs */ | |
395 | ATAPI_WRITE = 1, /* WRITEs */ | |
396 | ATAPI_READ_CD = 2, /* READ CD [MSF] */ | |
e52dcc48 TH |
397 | ATAPI_PASS_THRU = 3, /* SAT pass-thru */ |
398 | ATAPI_MISC = 4, /* the rest */ | |
624d5c51 TH |
399 | |
400 | /* Timing constants */ | |
401 | ATA_TIMING_SETUP = (1 << 0), | |
402 | ATA_TIMING_ACT8B = (1 << 1), | |
403 | ATA_TIMING_REC8B = (1 << 2), | |
404 | ATA_TIMING_CYC8B = (1 << 3), | |
405 | ATA_TIMING_8BIT = ATA_TIMING_ACT8B | ATA_TIMING_REC8B | | |
406 | ATA_TIMING_CYC8B, | |
407 | ATA_TIMING_ACTIVE = (1 << 4), | |
408 | ATA_TIMING_RECOVER = (1 << 5), | |
3ada9c12 DD |
409 | ATA_TIMING_DMACK_HOLD = (1 << 6), |
410 | ATA_TIMING_CYCLE = (1 << 7), | |
411 | ATA_TIMING_UDMA = (1 << 8), | |
624d5c51 TH |
412 | ATA_TIMING_ALL = ATA_TIMING_SETUP | ATA_TIMING_ACT8B | |
413 | ATA_TIMING_REC8B | ATA_TIMING_CYC8B | | |
414 | ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER | | |
3ada9c12 DD |
415 | ATA_TIMING_DMACK_HOLD | ATA_TIMING_CYCLE | |
416 | ATA_TIMING_UDMA, | |
f1bce7f8 TH |
417 | |
418 | /* ACPI constants */ | |
419 | ATA_ACPI_FILTER_SETXFER = 1 << 0, | |
420 | ATA_ACPI_FILTER_LOCK = 1 << 1, | |
421 | ATA_ACPI_FILTER_DIPM = 1 << 2, | |
fa5b561c TH |
422 | ATA_ACPI_FILTER_FPDMA_OFFSET = 1 << 3, /* FPDMA non-zero offset */ |
423 | ATA_ACPI_FILTER_FPDMA_AA = 1 << 4, /* FPDMA auto activate */ | |
f1bce7f8 TH |
424 | |
425 | ATA_ACPI_FILTER_DEFAULT = ATA_ACPI_FILTER_SETXFER | | |
426 | ATA_ACPI_FILTER_LOCK | | |
427 | ATA_ACPI_FILTER_DIPM, | |
1da177e4 LT |
428 | }; |
429 | ||
7dc951ae | 430 | enum ata_xfer_mask { |
f0a6d77b SS |
431 | ATA_MASK_PIO = ((1U << ATA_NR_PIO_MODES) - 1) << ATA_SHIFT_PIO, |
432 | ATA_MASK_MWDMA = ((1U << ATA_NR_MWDMA_MODES) - 1) << ATA_SHIFT_MWDMA, | |
433 | ATA_MASK_UDMA = ((1U << ATA_NR_UDMA_MODES) - 1) << ATA_SHIFT_UDMA, | |
7dc951ae TH |
434 | }; |
435 | ||
14be71f4 | 436 | enum hsm_task_states { |
c56b14d2 | 437 | HSM_ST_IDLE, /* no command on going */ |
71527647 AL |
438 | HSM_ST_FIRST, /* (waiting the device to) |
439 | write CDB or first data block */ | |
c56b14d2 AL |
440 | HSM_ST, /* (waiting the device to) transfer data */ |
441 | HSM_ST_LAST, /* (waiting the device to) complete command */ | |
c56b14d2 | 442 | HSM_ST_ERR, /* error */ |
1da177e4 LT |
443 | }; |
444 | ||
a7dac447 | 445 | enum ata_completion_errors { |
25937580 | 446 | AC_ERR_OK = 0, /* no error */ |
11a56d24 TH |
447 | AC_ERR_DEV = (1 << 0), /* device reported error */ |
448 | AC_ERR_HSM = (1 << 1), /* host state machine violation */ | |
449 | AC_ERR_TIMEOUT = (1 << 2), /* timeout */ | |
450 | AC_ERR_MEDIA = (1 << 3), /* media error */ | |
451 | AC_ERR_ATA_BUS = (1 << 4), /* ATA bus error */ | |
452 | AC_ERR_HOST_BUS = (1 << 5), /* host bus error */ | |
453 | AC_ERR_SYSTEM = (1 << 6), /* system error */ | |
454 | AC_ERR_INVALID = (1 << 7), /* invalid argument */ | |
455 | AC_ERR_OTHER = (1 << 8), /* unknown */ | |
55a8e2c8 | 456 | AC_ERR_NODEV_HINT = (1 << 9), /* polling device detection hint */ |
5335b729 | 457 | AC_ERR_NCQ = (1 << 10), /* marker for offending NCQ qc */ |
a7dac447 JG |
458 | }; |
459 | ||
c93b263e TH |
460 | /* |
461 | * Link power management policy: If you alter this, you also need to | |
462 | * alter libata-scsi.c (for the ascii descriptions) | |
463 | */ | |
464 | enum ata_lpm_policy { | |
465 | ATA_LPM_UNKNOWN, | |
466 | ATA_LPM_MAX_POWER, | |
467 | ATA_LPM_MED_POWER, | |
f4ac6476 | 468 | ATA_LPM_MED_POWER_WITH_DIPM, /* Med power + DIPM as win IRST does */ |
a5ec5a7b SP |
469 | ATA_LPM_MIN_POWER_WITH_PARTIAL, /* Min Power + partial and slumber */ |
470 | ATA_LPM_MIN_POWER, /* Min power + no partial (slumber only) */ | |
c93b263e TH |
471 | }; |
472 | ||
6b7ae954 TH |
473 | enum ata_lpm_hints { |
474 | ATA_LPM_EMPTY = (1 << 0), /* port empty/probing */ | |
475 | ATA_LPM_HIPM = (1 << 1), /* may use HIPM */ | |
fb329633 | 476 | ATA_LPM_WAKE_ONLY = (1 << 2), /* only wake up link */ |
6b7ae954 TH |
477 | }; |
478 | ||
1da177e4 LT |
479 | /* forward declarations */ |
480 | struct scsi_device; | |
481 | struct ata_port_operations; | |
482 | struct ata_port; | |
cc0680a5 | 483 | struct ata_link; |
1da177e4 LT |
484 | struct ata_queued_cmd; |
485 | ||
486 | /* typedefs */ | |
77853bf2 | 487 | typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc); |
cc0680a5 TH |
488 | typedef int (*ata_prereset_fn_t)(struct ata_link *link, unsigned long deadline); |
489 | typedef int (*ata_reset_fn_t)(struct ata_link *link, unsigned int *classes, | |
d4b2bab4 | 490 | unsigned long deadline); |
cc0680a5 | 491 | typedef void (*ata_postreset_fn_t)(struct ata_link *link, unsigned int *classes); |
1da177e4 | 492 | |
45fabbb7 | 493 | extern struct device_attribute dev_attr_unload_heads; |
ec811a94 BZ |
494 | #ifdef CONFIG_SATA_HOST |
495 | extern struct device_attribute dev_attr_link_power_management_policy; | |
5f91b8f5 | 496 | extern struct device_attribute dev_attr_ncq_prio_supported; |
84f95243 | 497 | extern struct device_attribute dev_attr_ncq_prio_enable; |
18f7ba4c KCA |
498 | extern struct device_attribute dev_attr_em_message_type; |
499 | extern struct device_attribute dev_attr_em_message; | |
500 | extern struct device_attribute dev_attr_sw_activity; | |
ec811a94 | 501 | #endif |
18f7ba4c KCA |
502 | |
503 | enum sw_activity { | |
504 | OFF, | |
505 | BLINK_ON, | |
506 | BLINK_OFF, | |
507 | }; | |
ca77329f | 508 | |
dc34e7e1 SS |
509 | struct ata_taskfile { |
510 | unsigned long flags; /* ATA_TFLAG_xxx */ | |
511 | u8 protocol; /* ATA_PROT_xxx */ | |
512 | ||
513 | u8 ctl; /* control reg */ | |
514 | ||
515 | u8 hob_feature; /* additional data */ | |
516 | u8 hob_nsect; /* to support LBA48 */ | |
517 | u8 hob_lbal; | |
518 | u8 hob_lbam; | |
519 | u8 hob_lbah; | |
520 | ||
efcef265 SS |
521 | union { |
522 | u8 error; | |
523 | u8 feature; | |
524 | }; | |
dc34e7e1 SS |
525 | u8 nsect; |
526 | u8 lbal; | |
527 | u8 lbam; | |
528 | u8 lbah; | |
529 | ||
530 | u8 device; | |
531 | ||
efcef265 SS |
532 | union { |
533 | u8 status; | |
534 | u8 command; | |
535 | }; | |
8be5ad9a MC |
536 | |
537 | u32 auxiliary; /* auxiliary field */ | |
538 | /* from SATA 3.1 and */ | |
539 | /* ATA-8 ACS-3 */ | |
dc34e7e1 SS |
540 | }; |
541 | ||
127102ae | 542 | #ifdef CONFIG_ATA_SFF |
1da177e4 | 543 | struct ata_ioports { |
0d5ff566 TH |
544 | void __iomem *cmd_addr; |
545 | void __iomem *data_addr; | |
546 | void __iomem *error_addr; | |
547 | void __iomem *feature_addr; | |
548 | void __iomem *nsect_addr; | |
549 | void __iomem *lbal_addr; | |
550 | void __iomem *lbam_addr; | |
551 | void __iomem *lbah_addr; | |
552 | void __iomem *device_addr; | |
553 | void __iomem *status_addr; | |
554 | void __iomem *command_addr; | |
555 | void __iomem *altstatus_addr; | |
556 | void __iomem *ctl_addr; | |
9a7780c9 | 557 | #ifdef CONFIG_ATA_BMDMA |
0d5ff566 | 558 | void __iomem *bmdma_addr; |
9a7780c9 | 559 | #endif /* CONFIG_ATA_BMDMA */ |
0d5ff566 | 560 | void __iomem *scr_addr; |
1da177e4 | 561 | }; |
127102ae | 562 | #endif /* CONFIG_ATA_SFF */ |
1da177e4 | 563 | |
cca3974e | 564 | struct ata_host { |
1da177e4 LT |
565 | spinlock_t lock; |
566 | struct device *dev; | |
0d5ff566 | 567 | void __iomem * const *iomap; |
1da177e4 | 568 | unsigned int n_ports; |
1a112d10 | 569 | unsigned int n_tags; /* nr of NCQ tags */ |
1da177e4 | 570 | void *private_data; |
029cfd6b | 571 | struct ata_port_operations *ops; |
5444a6f4 | 572 | unsigned long flags; |
2623c7a5 | 573 | struct kref kref; |
c0c362b6 TH |
574 | |
575 | struct mutex eh_mutex; | |
576 | struct task_struct *eh_owner; | |
577 | ||
032af1ce | 578 | struct ata_port *simplex_claimed; /* channel owning the DMA */ |
9c5fbf05 | 579 | struct ata_port *ports[]; |
1da177e4 LT |
580 | }; |
581 | ||
582 | struct ata_queued_cmd { | |
583 | struct ata_port *ap; | |
584 | struct ata_device *dev; | |
585 | ||
586 | struct scsi_cmnd *scsicmd; | |
587 | void (*scsidone)(struct scsi_cmnd *); | |
588 | ||
589 | struct ata_taskfile tf; | |
590 | u8 cdb[ATAPI_CDB_LEN]; | |
591 | ||
592 | unsigned long flags; /* ATA_QCFLAG_xxx */ | |
5ac40790 JA |
593 | unsigned int tag; /* libata core tag */ |
594 | unsigned int hw_tag; /* driver tag */ | |
1da177e4 | 595 | unsigned int n_elem; |
5825627c | 596 | unsigned int orig_n_elem; |
1da177e4 LT |
597 | |
598 | int dma_dir; | |
599 | ||
5a5dbd18 | 600 | unsigned int sect_size; |
cedc9a47 | 601 | |
1da177e4 | 602 | unsigned int nbytes; |
aacda375 | 603 | unsigned int extrabytes; |
1da177e4 LT |
604 | unsigned int curbytes; |
605 | ||
1da177e4 | 606 | struct scatterlist sgent; |
1da177e4 | 607 | |
ff2aeb1e | 608 | struct scatterlist *sg; |
1da177e4 | 609 | |
b34e9042 RK |
610 | struct scatterlist *cursg; |
611 | unsigned int cursg_ofs; | |
612 | ||
a22e2eb0 | 613 | unsigned int err_mask; |
e61e0672 | 614 | struct ata_taskfile result_tf; |
1da177e4 LT |
615 | ata_qc_cb_t complete_fn; |
616 | ||
1da177e4 | 617 | void *private_data; |
1c50dc83 | 618 | void *lldd_task; |
1da177e4 LT |
619 | }; |
620 | ||
cca3974e | 621 | struct ata_port_stats { |
1da177e4 LT |
622 | unsigned long unhandled_irq; |
623 | unsigned long idle_irq; | |
624 | unsigned long rw_reqbuf; | |
625 | }; | |
626 | ||
0c247c55 | 627 | struct ata_ering_entry { |
3884f7b0 | 628 | unsigned int eflags; |
0c247c55 TH |
629 | unsigned int err_mask; |
630 | u64 timestamp; | |
631 | }; | |
632 | ||
633 | struct ata_ering { | |
634 | int cursor; | |
635 | struct ata_ering_entry ring[ATA_ERING_SIZE]; | |
636 | }; | |
637 | ||
fe22e1c2 DLM |
638 | struct ata_cpr { |
639 | u8 num; | |
640 | u8 num_storage_elements; | |
641 | u64 start_lba; | |
642 | u64 num_lbas; | |
643 | }; | |
644 | ||
645 | struct ata_cpr_log { | |
646 | u8 nr_cpr; | |
647 | struct ata_cpr cpr[]; | |
648 | }; | |
649 | ||
1da177e4 | 650 | struct ata_device { |
9af5c9c9 | 651 | struct ata_link *link; |
72fa4b74 | 652 | unsigned int devno; /* 0 or 1 */ |
75683fe7 | 653 | unsigned int horkage; /* List of broken features */ |
6866e7bc | 654 | unsigned long flags; /* ATA_DFLAG_xxx */ |
3edebac4 | 655 | struct scsi_device *sdev; /* attached SCSI device */ |
95514fd8 | 656 | void *private_data; |
fafbae87 | 657 | #ifdef CONFIG_ATA_ACPI |
398e0782 | 658 | union acpi_object *gtf_cache; |
110f66d2 | 659 | unsigned int gtf_filter; |
afe75951 AL |
660 | #endif |
661 | #ifdef CONFIG_SATA_ZPODD | |
662 | void *zpodd; | |
fafbae87 | 663 | #endif |
d9027470 | 664 | struct device tdev; |
99cf610a | 665 | /* n_sector is CLEAR_BEGIN, read comment above CLEAR_BEGIN */ |
72fa4b74 | 666 | u64 n_sectors; /* size of device, if ATA */ |
5920dadf | 667 | u64 n_native_sectors; /* native size, if ATA */ |
1da177e4 | 668 | unsigned int class; /* ATA_DEV_xxx */ |
45fabbb7 | 669 | unsigned long unpark_deadline; |
e0a71752 | 670 | |
1da177e4 LT |
671 | u8 pio_mode; |
672 | u8 dma_mode; | |
673 | u8 xfer_mode; | |
674 | unsigned int xfer_shift; /* ATA_SHIFT_xxx */ | |
675 | ||
8cbd6df1 AL |
676 | unsigned int multi_count; /* sectors count for |
677 | READ/WRITE MULTIPLE */ | |
b00eec1d | 678 | unsigned int max_sectors; /* per-device max sectors */ |
6e7846e9 | 679 | unsigned int cdb_len; |
8bf62ece | 680 | |
acf356b1 | 681 | /* per-dev xfer mask */ |
f0a6d77b SS |
682 | unsigned int pio_mask; |
683 | unsigned int mwdma_mask; | |
684 | unsigned int udma_mask; | |
acf356b1 | 685 | |
8bf62ece AL |
686 | /* for CHS addressing */ |
687 | u16 cylinders; /* Number of cylinders */ | |
688 | u16 heads; /* Number of heads */ | |
689 | u16 sectors; /* Number of sectors per track */ | |
0c247c55 | 690 | |
f7e98930 JG |
691 | union { |
692 | u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */ | |
693 | u32 gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */ | |
4ee34ea3 | 694 | } ____cacheline_aligned; |
99cf610a | 695 | |
803739d2 SH |
696 | /* DEVSLP Timing Variables from Identify Device Data Log */ |
697 | u8 devslp_timing[ATA_LOG_DEVSLP_SIZE]; | |
65fe1f0f | 698 | |
ed36911c MC |
699 | /* NCQ send and receive log subcommand support */ |
700 | u8 ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_SIZE]; | |
284b3b77 | 701 | u8 ncq_non_data_cmds[ATA_LOG_NCQ_NON_DATA_SIZE]; |
ed36911c | 702 | |
6d1003ae HR |
703 | /* ZAC zone configuration */ |
704 | u32 zac_zoned_cap; | |
705 | u32 zac_zones_optimal_open; | |
706 | u32 zac_zones_optimal_nonseq; | |
707 | u32 zac_zones_max_open; | |
708 | ||
fe22e1c2 DLM |
709 | /* Concurrent positioning ranges */ |
710 | struct ata_cpr_log *cpr_log; | |
711 | ||
99cf610a TH |
712 | /* error history */ |
713 | int spdn_cnt; | |
714 | /* ering is CLEAR_END, read comment above CLEAR_END */ | |
715 | struct ata_ering ering; | |
1da177e4 LT |
716 | }; |
717 | ||
99cf610a TH |
718 | /* Fields between ATA_DEVICE_CLEAR_BEGIN and ATA_DEVICE_CLEAR_END are |
719 | * cleared to zero on ata_dev_init(). | |
72fa4b74 | 720 | */ |
99cf610a TH |
721 | #define ATA_DEVICE_CLEAR_BEGIN offsetof(struct ata_device, n_sectors) |
722 | #define ATA_DEVICE_CLEAR_END offsetof(struct ata_device, ering) | |
72fa4b74 | 723 | |
f3e81b19 TH |
724 | struct ata_eh_info { |
725 | struct ata_device *dev; /* offending device */ | |
726 | u32 serror; /* SError from LLDD */ | |
727 | unsigned int err_mask; /* port-wide err_mask */ | |
728 | unsigned int action; /* ATA_EH_* action mask */ | |
47005f25 | 729 | unsigned int dev_action[ATA_MAX_DEVICES]; /* dev EH action */ |
f3e81b19 | 730 | unsigned int flags; /* ATA_EHI_* flags */ |
abdda733 | 731 | |
abdda733 TH |
732 | unsigned int probe_mask; |
733 | ||
f3e81b19 TH |
734 | char desc[ATA_EH_DESC_LEN]; |
735 | int desc_len; | |
736 | }; | |
737 | ||
738 | struct ata_eh_context { | |
739 | struct ata_eh_info i; | |
740 | int tries[ATA_MAX_DEVICES]; | |
87fbc5a0 TH |
741 | int cmd_timeout_idx[ATA_MAX_DEVICES] |
742 | [ATA_EH_CMD_TIMEOUT_TABLE_SIZE]; | |
abdda733 TH |
743 | unsigned int classes[ATA_MAX_DEVICES]; |
744 | unsigned int did_probe_mask; | |
45fabbb7 | 745 | unsigned int unloaded_mask; |
00115e0f TH |
746 | unsigned int saved_ncq_enabled; |
747 | u8 saved_xfer_mode[ATA_MAX_DEVICES]; | |
0a2c0f56 TH |
748 | /* timestamp for the last reset attempt or success */ |
749 | unsigned long last_reset; | |
f3e81b19 TH |
750 | }; |
751 | ||
64578a3d TH |
752 | struct ata_acpi_drive |
753 | { | |
754 | u32 pio; | |
755 | u32 dma; | |
756 | } __packed; | |
757 | ||
758 | struct ata_acpi_gtm { | |
759 | struct ata_acpi_drive drive[2]; | |
760 | u32 flags; | |
761 | } __packed; | |
762 | ||
9af5c9c9 TH |
763 | struct ata_link { |
764 | struct ata_port *ap; | |
8989805d | 765 | int pmp; /* port multiplier port # */ |
9af5c9c9 | 766 | |
d9027470 | 767 | struct device tdev; |
9af5c9c9 TH |
768 | unsigned int active_tag; /* active tag on this link */ |
769 | u32 sactive; /* active NCQ commands */ | |
770 | ||
0c88758b TH |
771 | unsigned int flags; /* ATA_LFLAG_xxx */ |
772 | ||
d127ea7b | 773 | u32 saved_scontrol; /* SControl on probe */ |
9af5c9c9 TH |
774 | unsigned int hw_sata_spd_limit; |
775 | unsigned int sata_spd_limit; | |
776 | unsigned int sata_spd; /* current SATA PHY speed */ | |
6b7ae954 | 777 | enum ata_lpm_policy lpm_policy; |
9af5c9c9 TH |
778 | |
779 | /* record runtime error info, protected by host_set lock */ | |
780 | struct ata_eh_info eh_info; | |
781 | /* EH context */ | |
782 | struct ata_eh_context eh_context; | |
783 | ||
784 | struct ata_device device[ATA_MAX_DEVICES]; | |
09c5b480 GM |
785 | |
786 | unsigned long last_lpm_change; /* when last LPM change happened */ | |
9af5c9c9 | 787 | }; |
d9027470 GG |
788 | #define ATA_LINK_CLEAR_BEGIN offsetof(struct ata_link, active_tag) |
789 | #define ATA_LINK_CLEAR_END offsetof(struct ata_link, device[0]) | |
9af5c9c9 | 790 | |
1da177e4 | 791 | struct ata_port { |
cca3974e | 792 | struct Scsi_Host *scsi_host; /* our co-allocated scsi host */ |
029cfd6b | 793 | struct ata_port_operations *ops; |
ba6a1308 | 794 | spinlock_t *lock; |
e3cf95dd AC |
795 | /* Flags owned by the EH context. Only EH should touch these once the |
796 | port is active */ | |
1da177e4 | 797 | unsigned long flags; /* ATA_FLAG_xxx */ |
e3cf95dd | 798 | /* Flags that change dynamically, protected by ap->lock */ |
b51e9e5d | 799 | unsigned int pflags; /* ATA_PFLAG_xxx */ |
44877b4e | 800 | unsigned int print_id; /* user visible unique port ID */ |
e628dc99 | 801 | unsigned int local_port_no; /* host local port num */ |
44877b4e | 802 | unsigned int port_no; /* 0 based port no. inside the host */ |
1da177e4 | 803 | |
127102ae | 804 | #ifdef CONFIG_ATA_SFF |
1da177e4 | 805 | struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */ |
1da177e4 LT |
806 | u8 ctl; /* cache of ATA control register */ |
807 | u8 last_ctl; /* Cache last written value */ | |
ea3c6450 | 808 | struct ata_link* sff_pio_task_link; /* link currently used */ |
c429137a | 809 | struct delayed_work sff_pio_task; |
9a7780c9 | 810 | #ifdef CONFIG_ATA_BMDMA |
f60d7011 TH |
811 | struct ata_bmdma_prd *bmdma_prd; /* BMDMA SG list */ |
812 | dma_addr_t bmdma_prd_dma; /* and its DMA mapping */ | |
9a7780c9 | 813 | #endif /* CONFIG_ATA_BMDMA */ |
5fe7454a TH |
814 | #endif /* CONFIG_ATA_SFF */ |
815 | ||
1da177e4 LT |
816 | unsigned int pio_mask; |
817 | unsigned int mwdma_mask; | |
818 | unsigned int udma_mask; | |
819 | unsigned int cbl; /* cable type; ATA_CBL_xxx */ | |
1da177e4 | 820 | |
28361c40 | 821 | struct ata_queued_cmd qcmd[ATA_MAX_QUEUE + 1]; |
e3ed8939 | 822 | u64 qc_active; |
da917d69 | 823 | int nr_active_links; /* #links with active qcs */ |
dedaf2b0 | 824 | |
b1c72916 TH |
825 | struct ata_link link; /* host default link */ |
826 | struct ata_link *slave_link; /* see ata_slave_link_init() */ | |
1da177e4 | 827 | |
8989805d TH |
828 | int nr_pmp_links; /* nr of available PMP links */ |
829 | struct ata_link *pmp_link; /* array of PMP links */ | |
da917d69 | 830 | struct ata_link *excl_link; /* for PMP qc exclusion */ |
8989805d | 831 | |
cca3974e JG |
832 | struct ata_port_stats stats; |
833 | struct ata_host *host; | |
2f1f610b | 834 | struct device *dev; |
d9027470 | 835 | struct device tdev; |
1da177e4 | 836 | |
ad72cf98 | 837 | struct mutex scsi_scan_mutex; |
52bad64d | 838 | struct delayed_work hotplug_task; |
3b01b8af | 839 | struct work_struct scsi_rescan_task; |
86e45b6b | 840 | |
14be71f4 | 841 | unsigned int hsm_task_state; |
1da177e4 | 842 | |
a72ec4ce | 843 | struct list_head eh_done_q; |
c6cf9e99 | 844 | wait_queue_head_t eh_wait_q; |
a1e10f7e | 845 | int eh_tries; |
45fabbb7 | 846 | struct completion park_req_pending; |
bfd60579 | 847 | |
500530f6 | 848 | pm_message_t pm_mesg; |
6b7ae954 | 849 | enum ata_lpm_policy target_lpm_policy; |
500530f6 | 850 | |
5ddf24c5 | 851 | struct timer_list fastdrain_timer; |
2e0aee8f | 852 | unsigned int fastdrain_cnt; |
5ddf24c5 | 853 | |
b5292111 KHF |
854 | async_cookie_t cookie; |
855 | ||
18f7ba4c | 856 | int em_message_type; |
1da177e4 | 857 | void *private_data; |
fe635c7e | 858 | |
fafbae87 | 859 | #ifdef CONFIG_ATA_ACPI |
c05e6ff0 | 860 | struct ata_acpi_gtm __acpi_init_gtm; /* use ata_acpi_init_gtm() */ |
fafbae87 | 861 | #endif |
84bda12a TH |
862 | /* owned by EH */ |
863 | u8 sector_buf[ATA_SECT_SIZE] ____cacheline_aligned; | |
1da177e4 LT |
864 | }; |
865 | ||
029cfd6b TH |
866 | /* The following initializer overrides a method to NULL whether one of |
867 | * its parent has the method defined or not. This is equivalent to | |
868 | * ERR_PTR(-ENOENT). Unfortunately, ERR_PTR doesn't render a constant | |
869 | * expression and thus can't be used as an initializer. | |
870 | */ | |
871 | #define ATA_OP_NULL (void *)(unsigned long)(-ENOENT) | |
872 | ||
1da177e4 | 873 | struct ata_port_operations { |
c1bc899f TH |
874 | /* |
875 | * Command execution | |
876 | */ | |
95364f36 JS |
877 | int (*qc_defer)(struct ata_queued_cmd *qc); |
878 | int (*check_atapi_dma)(struct ata_queued_cmd *qc); | |
879 | enum ata_completion_errors (*qc_prep)(struct ata_queued_cmd *qc); | |
c1bc899f | 880 | unsigned int (*qc_issue)(struct ata_queued_cmd *qc); |
931139af | 881 | void (*qc_fill_rtf)(struct ata_queued_cmd *qc); |
93c4aa44 | 882 | void (*qc_ncq_fill_rtf)(struct ata_port *ap, u64 done_mask); |
1da177e4 | 883 | |
c1bc899f TH |
884 | /* |
885 | * Configuration and exception handling | |
886 | */ | |
887 | int (*cable_detect)(struct ata_port *ap); | |
f0a6d77b | 888 | unsigned int (*mode_filter)(struct ata_device *dev, unsigned int xfer_mask); |
c1bc899f TH |
889 | void (*set_piomode)(struct ata_port *ap, struct ata_device *dev); |
890 | void (*set_dmamode)(struct ata_port *ap, struct ata_device *dev); | |
891 | int (*set_mode)(struct ata_link *link, struct ata_device **r_failed_dev); | |
0561e514 DLM |
892 | unsigned int (*read_id)(struct ata_device *dev, struct ata_taskfile *tf, |
893 | __le16 *id); | |
1da177e4 | 894 | |
c1bc899f | 895 | void (*dev_config)(struct ata_device *dev); |
1da177e4 | 896 | |
c1bc899f TH |
897 | void (*freeze)(struct ata_port *ap); |
898 | void (*thaw)(struct ata_port *ap); | |
a1efdaba TH |
899 | ata_prereset_fn_t prereset; |
900 | ata_reset_fn_t softreset; | |
901 | ata_reset_fn_t hardreset; | |
902 | ata_postreset_fn_t postreset; | |
903 | ata_prereset_fn_t pmp_prereset; | |
904 | ata_reset_fn_t pmp_softreset; | |
905 | ata_reset_fn_t pmp_hardreset; | |
906 | ata_postreset_fn_t pmp_postreset; | |
c1bc899f | 907 | void (*error_handler)(struct ata_port *ap); |
c96f1732 | 908 | void (*lost_interrupt)(struct ata_port *ap); |
c1bc899f | 909 | void (*post_internal_cmd)(struct ata_queued_cmd *qc); |
e4a9c373 DW |
910 | void (*sched_eh)(struct ata_port *ap); |
911 | void (*end_eh)(struct ata_port *ap); | |
c1bc899f TH |
912 | |
913 | /* | |
914 | * Optional features | |
915 | */ | |
82ef04fb TH |
916 | int (*scr_read)(struct ata_link *link, unsigned int sc_reg, u32 *val); |
917 | int (*scr_write)(struct ata_link *link, unsigned int sc_reg, u32 val); | |
c1bc899f TH |
918 | void (*pmp_attach)(struct ata_port *ap); |
919 | void (*pmp_detach)(struct ata_port *ap); | |
6b7ae954 TH |
920 | int (*set_lpm)(struct ata_link *link, enum ata_lpm_policy policy, |
921 | unsigned hints); | |
c1bc899f TH |
922 | |
923 | /* | |
924 | * Start, stop, suspend and resume | |
925 | */ | |
926 | int (*port_suspend)(struct ata_port *ap, pm_message_t mesg); | |
927 | int (*port_resume)(struct ata_port *ap); | |
928 | int (*port_start)(struct ata_port *ap); | |
929 | void (*port_stop)(struct ata_port *ap); | |
930 | void (*host_stop)(struct ata_host *host); | |
931 | ||
127102ae | 932 | #ifdef CONFIG_ATA_SFF |
c1bc899f TH |
933 | /* |
934 | * SFF / taskfile oriented ops | |
935 | */ | |
5682ed33 | 936 | void (*sff_dev_select)(struct ata_port *ap, unsigned int device); |
41dec29b | 937 | void (*sff_set_devctl)(struct ata_port *ap, u8 ctl); |
5682ed33 TH |
938 | u8 (*sff_check_status)(struct ata_port *ap); |
939 | u8 (*sff_check_altstatus)(struct ata_port *ap); | |
940 | void (*sff_tf_load)(struct ata_port *ap, const struct ata_taskfile *tf); | |
941 | void (*sff_tf_read)(struct ata_port *ap, struct ata_taskfile *tf); | |
942 | void (*sff_exec_command)(struct ata_port *ap, | |
943 | const struct ata_taskfile *tf); | |
989e0aac | 944 | unsigned int (*sff_data_xfer)(struct ata_queued_cmd *qc, |
5682ed33 | 945 | unsigned char *buf, unsigned int buflen, int rw); |
e42a542b | 946 | void (*sff_irq_on)(struct ata_port *); |
27943620 | 947 | bool (*sff_irq_check)(struct ata_port *); |
5682ed33 | 948 | void (*sff_irq_clear)(struct ata_port *); |
8244cd05 | 949 | void (*sff_drain_fifo)(struct ata_queued_cmd *qc); |
5682ed33 | 950 | |
9a7780c9 | 951 | #ifdef CONFIG_ATA_BMDMA |
c1bc899f TH |
952 | void (*bmdma_setup)(struct ata_queued_cmd *qc); |
953 | void (*bmdma_start)(struct ata_queued_cmd *qc); | |
954 | void (*bmdma_stop)(struct ata_queued_cmd *qc); | |
955 | u8 (*bmdma_status)(struct ata_port *ap); | |
9a7780c9 | 956 | #endif /* CONFIG_ATA_BMDMA */ |
127102ae | 957 | #endif /* CONFIG_ATA_SFF */ |
c1bc899f | 958 | |
18f7ba4c KCA |
959 | ssize_t (*em_show)(struct ata_port *ap, char *buf); |
960 | ssize_t (*em_store)(struct ata_port *ap, const char *message, | |
961 | size_t size); | |
962 | ssize_t (*sw_activity_show)(struct ata_device *dev, char *buf); | |
963 | ssize_t (*sw_activity_store)(struct ata_device *dev, | |
964 | enum sw_activity val); | |
439d7a35 ML |
965 | ssize_t (*transmit_led_message)(struct ata_port *ap, u32 state, |
966 | ssize_t size); | |
967 | ||
c1bc899f TH |
968 | /* |
969 | * Obsolete | |
9ec957f2 | 970 | */ |
c1bc899f TH |
971 | void (*phy_reset)(struct ata_port *ap); |
972 | void (*eng_timeout)(struct ata_port *ap); | |
029cfd6b TH |
973 | |
974 | /* | |
975 | * ->inherits must be the last field and all the preceding | |
976 | * fields must be pointers. | |
977 | */ | |
978 | const struct ata_port_operations *inherits; | |
1da177e4 LT |
979 | }; |
980 | ||
981 | struct ata_port_info { | |
cca3974e | 982 | unsigned long flags; |
0c88758b | 983 | unsigned long link_flags; |
f0a6d77b SS |
984 | unsigned int pio_mask; |
985 | unsigned int mwdma_mask; | |
986 | unsigned int udma_mask; | |
029cfd6b | 987 | struct ata_port_operations *port_ops; |
e99f8b5e | 988 | void *private_data; |
1da177e4 LT |
989 | }; |
990 | ||
452503f9 AC |
991 | struct ata_timing { |
992 | unsigned short mode; /* ATA mode */ | |
993 | unsigned short setup; /* t1 */ | |
994 | unsigned short act8b; /* t2 for 8-bit I/O */ | |
995 | unsigned short rec8b; /* t2i for 8-bit I/O */ | |
996 | unsigned short cyc8b; /* t0 for 8-bit I/O */ | |
997 | unsigned short active; /* t2 or tD */ | |
998 | unsigned short recover; /* t2i or tK */ | |
3ada9c12 | 999 | unsigned short dmack_hold; /* tj */ |
452503f9 AC |
1000 | unsigned short cycle; /* t0 */ |
1001 | unsigned short udma; /* t2CYCTYP/2 */ | |
1002 | }; | |
1003 | ||
624d5c51 TH |
1004 | /* |
1005 | * Core layer - drivers/ata/libata-core.c | |
1006 | */ | |
029cfd6b | 1007 | extern struct ata_port_operations ata_dummy_port_ops; |
21b0ad4f | 1008 | extern const struct ata_port_info ata_dummy_port_info; |
dd5b06c4 | 1009 | |
b1c04e80 | 1010 | static inline bool ata_is_atapi(u8 prot) |
dc34e7e1 | 1011 | { |
37f92d77 | 1012 | return prot & ATA_PROT_FLAG_ATAPI; |
dc34e7e1 SS |
1013 | } |
1014 | ||
b1c04e80 | 1015 | static inline bool ata_is_pio(u8 prot) |
dc34e7e1 | 1016 | { |
37f92d77 | 1017 | return prot & ATA_PROT_FLAG_PIO; |
dc34e7e1 SS |
1018 | } |
1019 | ||
b1c04e80 | 1020 | static inline bool ata_is_dma(u8 prot) |
dc34e7e1 | 1021 | { |
37f92d77 | 1022 | return prot & ATA_PROT_FLAG_DMA; |
dc34e7e1 SS |
1023 | } |
1024 | ||
b1c04e80 | 1025 | static inline bool ata_is_ncq(u8 prot) |
dc34e7e1 | 1026 | { |
37f92d77 | 1027 | return prot & ATA_PROT_FLAG_NCQ; |
dc34e7e1 SS |
1028 | } |
1029 | ||
b1c04e80 | 1030 | static inline bool ata_is_data(u8 prot) |
dc34e7e1 | 1031 | { |
37f92d77 | 1032 | return prot & (ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA); |
dc34e7e1 SS |
1033 | } |
1034 | ||
1035 | static inline int is_multi_taskfile(struct ata_taskfile *tf) | |
1036 | { | |
1037 | return (tf->command == ATA_CMD_READ_MULTI) || | |
1038 | (tf->command == ATA_CMD_WRITE_MULTI) || | |
1039 | (tf->command == ATA_CMD_READ_MULTI_EXT) || | |
1040 | (tf->command == ATA_CMD_WRITE_MULTI_EXT) || | |
1041 | (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT); | |
1042 | } | |
1043 | ||
dd5b06c4 TH |
1044 | static inline int ata_port_is_dummy(struct ata_port *ap) |
1045 | { | |
1046 | return ap->ops == &ata_dummy_port_ops; | |
1047 | } | |
1048 | ||
fddb1a64 NC |
1049 | static inline bool ata_port_is_frozen(const struct ata_port *ap) |
1050 | { | |
1051 | return ap->pflags & ATA_PFLAG_FROZEN; | |
1052 | } | |
1053 | ||
0aa1113d | 1054 | extern int ata_std_prereset(struct ata_link *link, unsigned long deadline); |
aa2731ad TH |
1055 | extern int ata_wait_after_reset(struct ata_link *link, unsigned long deadline, |
1056 | int (*check_ready)(struct ata_link *link)); | |
57c9efdf TH |
1057 | extern int sata_std_hardreset(struct ata_link *link, unsigned int *class, |
1058 | unsigned long deadline); | |
203c75b8 | 1059 | extern void ata_std_postreset(struct ata_link *link, unsigned int *classes); |
2855568b | 1060 | |
f3187195 | 1061 | extern struct ata_host *ata_host_alloc(struct device *dev, int max_ports); |
f5cda257 TH |
1062 | extern struct ata_host *ata_host_alloc_pinfo(struct device *dev, |
1063 | const struct ata_port_info * const * ppi, int n_ports); | |
2fa4a326 JY |
1064 | extern void ata_host_get(struct ata_host *host); |
1065 | extern void ata_host_put(struct ata_host *host); | |
ecef7253 | 1066 | extern int ata_host_start(struct ata_host *host); |
f3187195 | 1067 | extern int ata_host_register(struct ata_host *host, |
25df73d9 | 1068 | const struct scsi_host_template *sht); |
f5cda257 TH |
1069 | extern int ata_host_activate(struct ata_host *host, int irq, |
1070 | irq_handler_t irq_handler, unsigned long irq_flags, | |
25df73d9 | 1071 | const struct scsi_host_template *sht); |
0529c159 | 1072 | extern void ata_host_detach(struct ata_host *host); |
8d8e7d13 | 1073 | extern void ata_host_init(struct ata_host *, struct device *, struct ata_port_operations *); |
193515d5 | 1074 | extern int ata_scsi_detect(struct scsi_host_template *sht); |
6f4e626f NC |
1075 | extern int ata_scsi_ioctl(struct scsi_device *dev, unsigned int cmd, |
1076 | void __user *arg); | |
75c0b0e1 AB |
1077 | #ifdef CONFIG_COMPAT |
1078 | #define ATA_SCSI_COMPAT_IOCTL .compat_ioctl = ata_scsi_ioctl, | |
1079 | #else | |
1080 | #define ATA_SCSI_COMPAT_IOCTL /* empty */ | |
1081 | #endif | |
f281233d | 1082 | extern int ata_scsi_queuecmd(struct Scsi_Host *h, struct scsi_cmnd *cmd); |
aad4b4d1 | 1083 | #if IS_REACHABLE(CONFIG_ATA) |
cc97923a | 1084 | bool ata_scsi_dma_need_drain(struct request *rq); |
7bb7ee87 CH |
1085 | #else |
1086 | #define ata_scsi_dma_need_drain NULL | |
1087 | #endif | |
94be9a58 | 1088 | extern int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *dev, |
6f4e626f | 1089 | unsigned int cmd, void __user *arg); |
b5b3fa38 TH |
1090 | extern bool ata_link_online(struct ata_link *link); |
1091 | extern bool ata_link_offline(struct ata_link *link); | |
6ffa01d8 | 1092 | #ifdef CONFIG_PM |
ec87cf37 | 1093 | extern void ata_host_suspend(struct ata_host *host, pm_message_t mesg); |
cca3974e | 1094 | extern void ata_host_resume(struct ata_host *host); |
bc6e7c4b DW |
1095 | extern void ata_sas_port_suspend(struct ata_port *ap); |
1096 | extern void ata_sas_port_resume(struct ata_port *ap); | |
2fcbdcb4 | 1097 | #else |
bc6e7c4b | 1098 | static inline void ata_sas_port_suspend(struct ata_port *ap) |
2fcbdcb4 | 1099 | { |
2fcbdcb4 | 1100 | } |
a5a65699 RD |
1101 | static inline void ata_sas_port_resume(struct ata_port *ap) |
1102 | { | |
1103 | } | |
6ffa01d8 | 1104 | #endif |
67846b30 | 1105 | extern int ata_ratelimit(void); |
97750ceb TH |
1106 | extern void ata_msleep(struct ata_port *ap, unsigned int msecs); |
1107 | extern u32 ata_wait_register(struct ata_port *ap, void __iomem *reg, u32 mask, | |
1108 | u32 val, unsigned long interval, unsigned long timeout); | |
436d34b3 | 1109 | extern int atapi_cmd_type(u8 opcode); |
f0a6d77b SS |
1110 | extern unsigned int ata_pack_xfermask(unsigned int pio_mask, |
1111 | unsigned int mwdma_mask, | |
1112 | unsigned int udma_mask); | |
1113 | extern void ata_unpack_xfermask(unsigned int xfer_mask, | |
1114 | unsigned int *pio_mask, | |
1115 | unsigned int *mwdma_mask, | |
1116 | unsigned int *udma_mask); | |
1117 | extern u8 ata_xfer_mask2mode(unsigned int xfer_mask); | |
1118 | extern unsigned int ata_xfer_mode2mask(u8 xfer_mode); | |
a28c1ab3 | 1119 | extern int ata_xfer_mode2shift(u8 xfer_mode); |
f0a6d77b SS |
1120 | extern const char *ata_mode_string(unsigned int xfer_mask); |
1121 | extern unsigned int ata_id_xfermask(const u16 *id); | |
31cc23b3 | 1122 | extern int ata_std_qc_defer(struct ata_queued_cmd *qc); |
95364f36 | 1123 | extern enum ata_completion_errors ata_noop_qc_prep(struct ata_queued_cmd *qc); |
1da177e4 LT |
1124 | extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg, |
1125 | unsigned int n_elem); | |
057ace5e | 1126 | extern unsigned int ata_dev_classify(const struct ata_taskfile *tf); |
6c952a0d HR |
1127 | extern unsigned int ata_port_classify(struct ata_port *ap, |
1128 | const struct ata_taskfile *tf); | |
10305f0f | 1129 | extern void ata_dev_disable(struct ata_device *adev); |
6a62a04d TH |
1130 | extern void ata_id_string(const u16 *id, unsigned char *s, |
1131 | unsigned int ofs, unsigned int len); | |
1132 | extern void ata_id_c_string(const u16 *id, unsigned char *s, | |
1133 | unsigned int ofs, unsigned int len); | |
963e4975 | 1134 | extern unsigned int ata_do_dev_read_id(struct ata_device *dev, |
0561e514 | 1135 | struct ata_taskfile *tf, __le16 *id); |
f686bcb8 | 1136 | extern void ata_qc_complete(struct ata_queued_cmd *qc); |
8385d756 | 1137 | extern u64 ata_qc_get_active(struct ata_port *ap); |
b27dcfb0 | 1138 | extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd); |
1da177e4 LT |
1139 | extern int ata_std_bios_param(struct scsi_device *sdev, |
1140 | struct block_device *bdev, | |
1141 | sector_t capacity, int geom[]); | |
d8d9129e | 1142 | extern void ata_scsi_unlock_native_capacity(struct scsi_device *sdev); |
1da177e4 | 1143 | extern int ata_scsi_slave_config(struct scsi_device *sdev); |
83c47bcb | 1144 | extern void ata_scsi_slave_destroy(struct scsi_device *sdev); |
a6e6ce8e | 1145 | extern int ata_scsi_change_queue_depth(struct scsi_device *sdev, |
db5ed4df | 1146 | int queue_depth); |
141f3d62 DLM |
1147 | extern int ata_change_queue_depth(struct ata_port *ap, struct ata_device *dev, |
1148 | struct scsi_device *sdev, int queue_depth); | |
3373efd8 | 1149 | extern struct ata_device *ata_dev_pair(struct ata_device *adev); |
0260731f | 1150 | extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); |
0e0b494c JB |
1151 | extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap); |
1152 | extern void ata_scsi_cmd_error_handler(struct Scsi_Host *host, struct ata_port *ap, struct list_head *eh_q); | |
7fe183c7 BZ |
1153 | |
1154 | /* | |
1155 | * SATA specific code - drivers/ata/libata-sata.c | |
1156 | */ | |
6eab1bc0 | 1157 | #ifdef CONFIG_SATA_HOST |
2b384ede BZ |
1158 | extern const unsigned long sata_deb_timing_normal[]; |
1159 | extern const unsigned long sata_deb_timing_hotplug[]; | |
1160 | extern const unsigned long sata_deb_timing_long[]; | |
1161 | ||
1162 | static inline const unsigned long * | |
1163 | sata_ehc_deb_timing(struct ata_eh_context *ehc) | |
1164 | { | |
1165 | if (ehc->i.flags & ATA_EHI_HOTPLUGGED) | |
1166 | return sata_deb_timing_hotplug; | |
1167 | else | |
1168 | return sata_deb_timing_normal; | |
1169 | } | |
1170 | ||
6eab1bc0 BZ |
1171 | extern int sata_scr_valid(struct ata_link *link); |
1172 | extern int sata_scr_read(struct ata_link *link, int reg, u32 *val); | |
1173 | extern int sata_scr_write(struct ata_link *link, int reg, u32 val); | |
1174 | extern int sata_scr_write_flush(struct ata_link *link, int reg, u32 val); | |
ab4117cf | 1175 | extern int sata_set_spd(struct ata_link *link); |
78c97c80 BZ |
1176 | extern int sata_link_hardreset(struct ata_link *link, |
1177 | const unsigned long *timing, unsigned long deadline, | |
1178 | bool *online, int (*check_ready)(struct ata_link *)); | |
9d3158f5 BZ |
1179 | extern int sata_link_resume(struct ata_link *link, const unsigned long *params, |
1180 | unsigned long deadline); | |
a0ccd251 | 1181 | extern void ata_eh_analyze_ncq_error(struct ata_link *link); |
6eab1bc0 | 1182 | #else |
2b384ede BZ |
1183 | static inline const unsigned long * |
1184 | sata_ehc_deb_timing(struct ata_eh_context *ehc) | |
1185 | { | |
1186 | return NULL; | |
1187 | } | |
6eab1bc0 BZ |
1188 | static inline int sata_scr_valid(struct ata_link *link) { return 0; } |
1189 | static inline int sata_scr_read(struct ata_link *link, int reg, u32 *val) | |
1190 | { | |
1191 | return -EOPNOTSUPP; | |
1192 | } | |
1193 | static inline int sata_scr_write(struct ata_link *link, int reg, u32 val) | |
1194 | { | |
1195 | return -EOPNOTSUPP; | |
1196 | } | |
1197 | static inline int sata_scr_write_flush(struct ata_link *link, int reg, u32 val) | |
1198 | { | |
1199 | return -EOPNOTSUPP; | |
1200 | } | |
ab4117cf | 1201 | static inline int sata_set_spd(struct ata_link *link) { return -EOPNOTSUPP; } |
78c97c80 BZ |
1202 | static inline int sata_link_hardreset(struct ata_link *link, |
1203 | const unsigned long *timing, | |
1204 | unsigned long deadline, | |
1205 | bool *online, | |
1206 | int (*check_ready)(struct ata_link *)) | |
1207 | { | |
1208 | if (online) | |
1209 | *online = false; | |
1210 | return -EOPNOTSUPP; | |
1211 | } | |
9d3158f5 BZ |
1212 | static inline int sata_link_resume(struct ata_link *link, |
1213 | const unsigned long *params, | |
1214 | unsigned long deadline) | |
1215 | { | |
1216 | return -EOPNOTSUPP; | |
1217 | } | |
a0ccd251 | 1218 | static inline void ata_eh_analyze_ncq_error(struct ata_link *link) { } |
6eab1bc0 | 1219 | #endif |
9d3158f5 BZ |
1220 | extern int sata_link_debounce(struct ata_link *link, |
1221 | const unsigned long *params, unsigned long deadline); | |
7fe183c7 BZ |
1222 | extern int sata_link_scr_lpm(struct ata_link *link, enum ata_lpm_policy policy, |
1223 | bool spm_wakeup); | |
1224 | extern int ata_slave_link_init(struct ata_port *ap); | |
15964ff7 BZ |
1225 | extern void ata_sas_port_destroy(struct ata_port *); |
1226 | extern struct ata_port *ata_sas_port_alloc(struct ata_host *, | |
1227 | struct ata_port_info *, struct Scsi_Host *); | |
1228 | extern void ata_sas_async_probe(struct ata_port *ap); | |
1229 | extern int ata_sas_sync_probe(struct ata_port *ap); | |
1230 | extern int ata_sas_port_init(struct ata_port *); | |
1231 | extern int ata_sas_port_start(struct ata_port *ap); | |
1232 | extern int ata_sas_tport_add(struct device *parent, struct ata_port *ap); | |
1233 | extern void ata_sas_tport_delete(struct ata_port *ap); | |
1234 | extern void ata_sas_port_stop(struct ata_port *ap); | |
1235 | extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *); | |
1236 | extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap); | |
7fe183c7 BZ |
1237 | extern void ata_tf_to_fis(const struct ata_taskfile *tf, |
1238 | u8 pmp, int is_cmd, u8 *fis); | |
1239 | extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf); | |
61a11986 | 1240 | extern int ata_qc_complete_multiple(struct ata_port *ap, u64 qc_active); |
8393b811 | 1241 | extern bool sata_lpm_ignore_phy_events(struct ata_link *link); |
a695de27 | 1242 | extern int sata_async_notification(struct ata_port *ap); |
1da177e4 | 1243 | |
be0d18df AC |
1244 | extern int ata_cable_40wire(struct ata_port *ap); |
1245 | extern int ata_cable_80wire(struct ata_port *ap); | |
1246 | extern int ata_cable_sata(struct ata_port *ap); | |
c88f90c3 | 1247 | extern int ata_cable_ignore(struct ata_port *ap); |
be0d18df AC |
1248 | extern int ata_cable_unknown(struct ata_port *ap); |
1249 | ||
624d5c51 | 1250 | /* Timing helpers */ |
1bc4ccff | 1251 | extern unsigned int ata_pio_need_iordy(const struct ata_device *); |
a0f79b92 | 1252 | extern u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle); |
452503f9 | 1253 | |
624d5c51 TH |
1254 | /* PCI */ |
1255 | #ifdef CONFIG_PCI | |
1256 | struct pci_dev; | |
1257 | ||
1258 | struct pci_bits { | |
1259 | unsigned int reg; /* PCI config register to read */ | |
1260 | unsigned int width; /* 1 (8 bit), 2 (16 bit), 4 (32 bit) */ | |
1261 | unsigned long mask; | |
1262 | unsigned long val; | |
452503f9 AC |
1263 | }; |
1264 | ||
624d5c51 | 1265 | extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits); |
10a663a1 | 1266 | extern void ata_pci_shutdown_one(struct pci_dev *pdev); |
624d5c51 TH |
1267 | extern void ata_pci_remove_one(struct pci_dev *pdev); |
1268 | ||
1269 | #ifdef CONFIG_PM | |
1270 | extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg); | |
1271 | extern int __must_check ata_pci_device_do_resume(struct pci_dev *pdev); | |
1272 | extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); | |
1273 | extern int ata_pci_device_resume(struct pci_dev *pdev); | |
1274 | #endif /* CONFIG_PM */ | |
1275 | #endif /* CONFIG_PCI */ | |
1276 | ||
b7db04d9 BN |
1277 | struct platform_device; |
1278 | ||
1279 | extern int ata_platform_remove_one(struct platform_device *pdev); | |
1280 | ||
624d5c51 TH |
1281 | /* |
1282 | * ACPI - drivers/ata/libata-acpi.c | |
1283 | */ | |
e1ddb4b6 | 1284 | #ifdef CONFIG_ATA_ACPI |
c05e6ff0 TH |
1285 | static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) |
1286 | { | |
1287 | if (ap->pflags & ATA_PFLAG_INIT_GTM_VALID) | |
1288 | return &ap->__acpi_init_gtm; | |
1289 | return NULL; | |
1290 | } | |
0d02f0b2 TH |
1291 | int ata_acpi_stm(struct ata_port *ap, const struct ata_acpi_gtm *stm); |
1292 | int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *stm); | |
f0a6d77b SS |
1293 | unsigned int ata_acpi_gtm_xfermask(struct ata_device *dev, |
1294 | const struct ata_acpi_gtm *gtm); | |
021ee9a6 | 1295 | int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm); |
e1ddb4b6 | 1296 | #else |
c05e6ff0 TH |
1297 | static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) |
1298 | { | |
1299 | return NULL; | |
1300 | } | |
7c77fa4d TH |
1301 | |
1302 | static inline int ata_acpi_stm(const struct ata_port *ap, | |
1303 | struct ata_acpi_gtm *stm) | |
1304 | { | |
1305 | return -ENOSYS; | |
1306 | } | |
1307 | ||
1308 | static inline int ata_acpi_gtm(const struct ata_port *ap, | |
1309 | struct ata_acpi_gtm *stm) | |
1310 | { | |
1311 | return -ENOSYS; | |
1312 | } | |
1313 | ||
1314 | static inline unsigned int ata_acpi_gtm_xfermask(struct ata_device *dev, | |
1315 | const struct ata_acpi_gtm *gtm) | |
1316 | { | |
1317 | return 0; | |
1318 | } | |
021ee9a6 TH |
1319 | |
1320 | static inline int ata_acpi_cbl_80wire(struct ata_port *ap, | |
1321 | const struct ata_acpi_gtm *gtm) | |
1322 | { | |
1323 | return 0; | |
1324 | } | |
e1ddb4b6 | 1325 | #endif |
1da177e4 | 1326 | |
ece1d636 | 1327 | /* |
624d5c51 | 1328 | * EH - drivers/ata/libata-eh.c |
ece1d636 | 1329 | */ |
7b70fc03 | 1330 | extern void ata_port_schedule_eh(struct ata_port *ap); |
81c757bc | 1331 | extern void ata_port_wait_eh(struct ata_port *ap); |
dbd82616 | 1332 | extern int ata_link_abort(struct ata_link *link); |
7b70fc03 | 1333 | extern int ata_port_abort(struct ata_port *ap); |
e3180499 TH |
1334 | extern int ata_port_freeze(struct ata_port *ap); |
1335 | ||
1336 | extern void ata_eh_freeze_port(struct ata_port *ap); | |
1337 | extern void ata_eh_thaw_port(struct ata_port *ap); | |
7b70fc03 | 1338 | |
ece1d636 TH |
1339 | extern void ata_eh_qc_complete(struct ata_queued_cmd *qc); |
1340 | extern void ata_eh_qc_retry(struct ata_queued_cmd *qc); | |
1341 | ||
f5914a46 TH |
1342 | extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset, |
1343 | ata_reset_fn_t softreset, ata_reset_fn_t hardreset, | |
1344 | ata_postreset_fn_t postreset); | |
a1efdaba | 1345 | extern void ata_std_error_handler(struct ata_port *ap); |
e4a9c373 DW |
1346 | extern void ata_std_sched_eh(struct ata_port *ap); |
1347 | extern void ata_std_end_eh(struct ata_port *ap); | |
8a745f1f | 1348 | extern int ata_link_nr_enabled(struct ata_link *link); |
022bdb07 | 1349 | |
68d1d07b TH |
1350 | /* |
1351 | * Base operations to inherit from and initializers for sht | |
1352 | * | |
1353 | * Operations | |
1354 | * | |
1355 | * base : Common to all libata drivers. | |
1356 | * sata : SATA controllers w/ native interface. | |
1357 | * pmp : SATA controllers w/ PMP support. | |
1358 | * sff : SFF ATA controllers w/o BMDMA support. | |
1359 | * bmdma : SFF ATA controllers w/ BMDMA support. | |
1360 | * | |
1361 | * sht initializers | |
1362 | * | |
1363 | * BASE : Common to all libata drivers. The user must set | |
1364 | * sg_tablesize and dma_boundary. | |
1365 | * PIO : SFF ATA controllers w/ only PIO support. | |
1366 | * BMDMA : SFF ATA controllers w/ BMDMA support. sg_tablesize and | |
1367 | * dma_boundary are set to BMDMA limits. | |
1368 | * NCQ : SATA controllers supporting NCQ. The user must set | |
1369 | * sg_tablesize, dma_boundary and can_queue. | |
1370 | */ | |
1371 | extern const struct ata_port_operations ata_base_port_ops; | |
1372 | extern const struct ata_port_operations sata_port_ops; | |
c3f69c7f | 1373 | extern const struct attribute_group *ata_common_sdev_groups[]; |
68d1d07b | 1374 | |
018d5ef2 AM |
1375 | /* |
1376 | * All sht initializers (BASE, PIO, BMDMA, NCQ) must be instantiated | |
1377 | * by the edge drivers. Because the 'module' field of sht must be the | |
1378 | * edge driver's module reference, otherwise the driver can be unloaded | |
1379 | * even if the scsi_device is being accessed. | |
1380 | */ | |
6f09eae3 | 1381 | #define __ATA_BASE_SHT(drv_name) \ |
68d1d07b TH |
1382 | .module = THIS_MODULE, \ |
1383 | .name = drv_name, \ | |
1384 | .ioctl = ata_scsi_ioctl, \ | |
75c0b0e1 | 1385 | ATA_SCSI_COMPAT_IOCTL \ |
68d1d07b | 1386 | .queuecommand = ata_scsi_queuecmd, \ |
cc97923a | 1387 | .dma_need_drain = ata_scsi_dma_need_drain, \ |
68d1d07b | 1388 | .this_id = ATA_SHT_THIS_ID, \ |
68d1d07b | 1389 | .emulated = ATA_SHT_EMULATED, \ |
68d1d07b | 1390 | .proc_name = drv_name, \ |
68d1d07b | 1391 | .slave_destroy = ata_scsi_slave_destroy, \ |
45fabbb7 | 1392 | .bios_param = ata_std_bios_param, \ |
a357f7b4 JG |
1393 | .unlock_native_capacity = ata_scsi_unlock_native_capacity,\ |
1394 | .max_sectors = ATA_MAX_SECTORS_LBA48 | |
6f09eae3 | 1395 | |
4e7dba07 | 1396 | #define ATA_SUBBASE_SHT(drv_name) \ |
6f09eae3 | 1397 | __ATA_BASE_SHT(drv_name), \ |
4e7dba07 LJ |
1398 | .can_queue = ATA_DEF_QUEUE, \ |
1399 | .tag_alloc_policy = BLK_TAG_ALLOC_RR, \ | |
1400 | .slave_configure = ata_scsi_slave_config | |
1401 | ||
e5b48ee3 DLM |
1402 | #define ATA_SUBBASE_SHT_QD(drv_name, drv_qd) \ |
1403 | __ATA_BASE_SHT(drv_name), \ | |
1404 | .can_queue = drv_qd, \ | |
1405 | .tag_alloc_policy = BLK_TAG_ALLOC_RR, \ | |
1406 | .slave_configure = ata_scsi_slave_config | |
1407 | ||
4e7dba07 LJ |
1408 | #define ATA_BASE_SHT(drv_name) \ |
1409 | ATA_SUBBASE_SHT(drv_name), \ | |
c3f69c7f | 1410 | .sdev_groups = ata_common_sdev_groups |
68d1d07b | 1411 | |
ec811a94 | 1412 | #ifdef CONFIG_SATA_HOST |
c3f69c7f | 1413 | extern const struct attribute_group *ata_ncq_sdev_groups[]; |
ec811a94 | 1414 | |
68d1d07b | 1415 | #define ATA_NCQ_SHT(drv_name) \ |
4e7dba07 | 1416 | ATA_SUBBASE_SHT(drv_name), \ |
c3f69c7f | 1417 | .sdev_groups = ata_ncq_sdev_groups, \ |
68d1d07b | 1418 | .change_queue_depth = ata_scsi_change_queue_depth |
e5b48ee3 DLM |
1419 | |
1420 | #define ATA_NCQ_SHT_QD(drv_name, drv_qd) \ | |
1421 | ATA_SUBBASE_SHT_QD(drv_name, drv_qd), \ | |
1422 | .sdev_groups = ata_ncq_sdev_groups, \ | |
1423 | .change_queue_depth = ata_scsi_change_queue_depth | |
ec811a94 | 1424 | #endif |
68d1d07b | 1425 | |
071f44b1 TH |
1426 | /* |
1427 | * PMP helpers | |
1428 | */ | |
88fcd562 | 1429 | #ifdef CONFIG_SATA_PMP |
071f44b1 TH |
1430 | static inline bool sata_pmp_supported(struct ata_port *ap) |
1431 | { | |
1432 | return ap->flags & ATA_FLAG_PMP; | |
1433 | } | |
1434 | ||
1435 | static inline bool sata_pmp_attached(struct ata_port *ap) | |
1436 | { | |
1437 | return ap->nr_pmp_links != 0; | |
1438 | } | |
1439 | ||
b1c04e80 | 1440 | static inline bool ata_is_host_link(const struct ata_link *link) |
071f44b1 | 1441 | { |
b1c72916 | 1442 | return link == &link->ap->link || link == link->ap->slave_link; |
071f44b1 | 1443 | } |
88fcd562 TH |
1444 | #else /* CONFIG_SATA_PMP */ |
1445 | static inline bool sata_pmp_supported(struct ata_port *ap) | |
1446 | { | |
1447 | return false; | |
1448 | } | |
1449 | ||
1450 | static inline bool sata_pmp_attached(struct ata_port *ap) | |
1451 | { | |
1452 | return false; | |
1453 | } | |
1454 | ||
b1c04e80 | 1455 | static inline bool ata_is_host_link(const struct ata_link *link) |
88fcd562 | 1456 | { |
62283c6c | 1457 | return true; |
88fcd562 TH |
1458 | } |
1459 | #endif /* CONFIG_SATA_PMP */ | |
071f44b1 TH |
1460 | |
1461 | static inline int sata_srst_pmp(struct ata_link *link) | |
1462 | { | |
1463 | if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) | |
1464 | return SATA_PMP_CTRL_PORT; | |
1465 | return link->pmp; | |
1466 | } | |
1467 | ||
742bef47 HR |
1468 | #define ata_port_printk(level, ap, fmt, ...) \ |
1469 | pr_ ## level ("ata%u: " fmt, (ap)->print_id, ##__VA_ARGS__) | |
a9a79dfe JP |
1470 | |
1471 | #define ata_port_err(ap, fmt, ...) \ | |
742bef47 | 1472 | ata_port_printk(err, ap, fmt, ##__VA_ARGS__) |
a9a79dfe | 1473 | #define ata_port_warn(ap, fmt, ...) \ |
742bef47 | 1474 | ata_port_printk(warn, ap, fmt, ##__VA_ARGS__) |
a9a79dfe | 1475 | #define ata_port_notice(ap, fmt, ...) \ |
742bef47 | 1476 | ata_port_printk(notice, ap, fmt, ##__VA_ARGS__) |
a9a79dfe | 1477 | #define ata_port_info(ap, fmt, ...) \ |
742bef47 | 1478 | ata_port_printk(info, ap, fmt, ##__VA_ARGS__) |
a9a79dfe | 1479 | #define ata_port_dbg(ap, fmt, ...) \ |
742bef47 HR |
1480 | ata_port_printk(debug, ap, fmt, ##__VA_ARGS__) |
1481 | ||
1482 | #define ata_link_printk(level, link, fmt, ...) \ | |
1483 | do { \ | |
1484 | if (sata_pmp_attached((link)->ap) || \ | |
1485 | (link)->ap->slave_link) \ | |
1486 | pr_ ## level ("ata%u.%02u: " fmt, \ | |
1487 | (link)->ap->print_id, \ | |
1488 | (link)->pmp, \ | |
1489 | ##__VA_ARGS__); \ | |
1490 | else \ | |
1491 | pr_ ## level ("ata%u: " fmt, \ | |
1492 | (link)->ap->print_id, \ | |
1493 | ##__VA_ARGS__); \ | |
1494 | } while (0) | |
a9a79dfe JP |
1495 | |
1496 | #define ata_link_err(link, fmt, ...) \ | |
742bef47 | 1497 | ata_link_printk(err, link, fmt, ##__VA_ARGS__) |
a9a79dfe | 1498 | #define ata_link_warn(link, fmt, ...) \ |
742bef47 | 1499 | ata_link_printk(warn, link, fmt, ##__VA_ARGS__) |
a9a79dfe | 1500 | #define ata_link_notice(link, fmt, ...) \ |
742bef47 | 1501 | ata_link_printk(notice, link, fmt, ##__VA_ARGS__) |
a9a79dfe | 1502 | #define ata_link_info(link, fmt, ...) \ |
742bef47 | 1503 | ata_link_printk(info, link, fmt, ##__VA_ARGS__) |
a9a79dfe | 1504 | #define ata_link_dbg(link, fmt, ...) \ |
742bef47 HR |
1505 | ata_link_printk(debug, link, fmt, ##__VA_ARGS__) |
1506 | ||
1507 | #define ata_dev_printk(level, dev, fmt, ...) \ | |
1508 | pr_ ## level("ata%u.%02u: " fmt, \ | |
1509 | (dev)->link->ap->print_id, \ | |
1510 | (dev)->link->pmp + (dev)->devno, \ | |
1511 | ##__VA_ARGS__) | |
a9a79dfe JP |
1512 | |
1513 | #define ata_dev_err(dev, fmt, ...) \ | |
742bef47 | 1514 | ata_dev_printk(err, dev, fmt, ##__VA_ARGS__) |
a9a79dfe | 1515 | #define ata_dev_warn(dev, fmt, ...) \ |
742bef47 | 1516 | ata_dev_printk(warn, dev, fmt, ##__VA_ARGS__) |
a9a79dfe | 1517 | #define ata_dev_notice(dev, fmt, ...) \ |
742bef47 | 1518 | ata_dev_printk(notice, dev, fmt, ##__VA_ARGS__) |
a9a79dfe | 1519 | #define ata_dev_info(dev, fmt, ...) \ |
742bef47 | 1520 | ata_dev_printk(info, dev, fmt, ##__VA_ARGS__) |
a9a79dfe | 1521 | #define ata_dev_dbg(dev, fmt, ...) \ |
742bef47 | 1522 | ata_dev_printk(debug, dev, fmt, ##__VA_ARGS__) |
1da177e4 | 1523 | |
06296a1e JP |
1524 | void ata_print_version(const struct device *dev, const char *version); |
1525 | ||
f3e81b19 TH |
1526 | /* |
1527 | * ata_eh_info helpers | |
1528 | */ | |
b9075fa9 JP |
1529 | extern __printf(2, 3) |
1530 | void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); | |
1531 | extern __printf(2, 3) | |
1532 | void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); | |
b64bbc39 | 1533 | extern void ata_ehi_clear_desc(struct ata_eh_info *ehi); |
f3e81b19 | 1534 | |
c0b6c037 TH |
1535 | static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi) |
1536 | { | |
b558eddd | 1537 | ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1; |
f8f1e1cc | 1538 | ehi->flags |= ATA_EHI_HOTPLUGGED; |
b558eddd | 1539 | ehi->action |= ATA_EH_RESET | ATA_EH_ENABLE_LINK; |
c0b6c037 TH |
1540 | ehi->err_mask |= AC_ERR_ATA_BUS; |
1541 | } | |
1542 | ||
cbcdd875 TH |
1543 | /* |
1544 | * port description helpers | |
1545 | */ | |
b9075fa9 JP |
1546 | extern __printf(2, 3) |
1547 | void ata_port_desc(struct ata_port *ap, const char *fmt, ...); | |
cbcdd875 TH |
1548 | #ifdef CONFIG_PCI |
1549 | extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset, | |
1550 | const char *name); | |
1551 | #endif | |
1552 | ||
28361c40 | 1553 | static inline bool ata_tag_internal(unsigned int tag) |
1da177e4 | 1554 | { |
28361c40 | 1555 | return tag == ATA_TAG_INTERNAL; |
1da177e4 LT |
1556 | } |
1557 | ||
28361c40 | 1558 | static inline bool ata_tag_valid(unsigned int tag) |
2ab7db1f | 1559 | { |
28361c40 | 1560 | return tag < ATA_MAX_QUEUE || ata_tag_internal(tag); |
2ab7db1f TH |
1561 | } |
1562 | ||
6362f0a2 JA |
1563 | #define __ata_qc_for_each(ap, qc, tag, max_tag, fn) \ |
1564 | for ((tag) = 0; (tag) < (max_tag) && \ | |
1565 | ({ qc = fn((ap), (tag)); 1; }); (tag)++) \ | |
1566 | ||
1567 | /* | |
1568 | * Internal use only, iterate commands ignoring error handling and | |
1569 | * status of 'qc'. | |
1570 | */ | |
1571 | #define ata_qc_for_each_raw(ap, qc, tag) \ | |
1572 | __ata_qc_for_each(ap, qc, tag, ATA_MAX_QUEUE, __ata_qc_from_tag) | |
1573 | ||
1574 | /* | |
1575 | * Iterate all potential commands that can be queued | |
1576 | */ | |
1577 | #define ata_qc_for_each(ap, qc, tag) \ | |
1578 | __ata_qc_for_each(ap, qc, tag, ATA_MAX_QUEUE, ata_qc_from_tag) | |
1579 | ||
1580 | /* | |
1581 | * Like ata_qc_for_each, but with the internal tag included | |
1582 | */ | |
1583 | #define ata_qc_for_each_with_internal(ap, qc, tag) \ | |
1584 | __ata_qc_for_each(ap, qc, tag, ATA_MAX_QUEUE + 1, ata_qc_from_tag) | |
1585 | ||
5806db22 TH |
1586 | /* |
1587 | * device helpers | |
1588 | */ | |
e1211e3f | 1589 | static inline unsigned int ata_class_enabled(unsigned int class) |
597afd21 | 1590 | { |
e0a71752 | 1591 | return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI || |
9162c657 HR |
1592 | class == ATA_DEV_PMP || class == ATA_DEV_SEMB || |
1593 | class == ATA_DEV_ZAC; | |
597afd21 TH |
1594 | } |
1595 | ||
e1211e3f | 1596 | static inline unsigned int ata_class_disabled(unsigned int class) |
1da177e4 | 1597 | { |
e0a71752 | 1598 | return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP || |
3a92945b HR |
1599 | class == ATA_DEV_PMP_UNSUP || class == ATA_DEV_SEMB_UNSUP || |
1600 | class == ATA_DEV_ZAC_UNSUP; | |
e1211e3f TH |
1601 | } |
1602 | ||
002c8054 TH |
1603 | static inline unsigned int ata_class_absent(unsigned int class) |
1604 | { | |
1605 | return !ata_class_enabled(class) && !ata_class_disabled(class); | |
1606 | } | |
1607 | ||
e1211e3f TH |
1608 | static inline unsigned int ata_dev_enabled(const struct ata_device *dev) |
1609 | { | |
1610 | return ata_class_enabled(dev->class); | |
1611 | } | |
1612 | ||
1613 | static inline unsigned int ata_dev_disabled(const struct ata_device *dev) | |
1614 | { | |
1615 | return ata_class_disabled(dev->class); | |
1da177e4 LT |
1616 | } |
1617 | ||
002c8054 TH |
1618 | static inline unsigned int ata_dev_absent(const struct ata_device *dev) |
1619 | { | |
1620 | return ata_class_absent(dev->class); | |
1621 | } | |
1622 | ||
5806db22 | 1623 | /* |
f58229f8 | 1624 | * link helpers |
5806db22 | 1625 | */ |
f58229f8 | 1626 | static inline int ata_link_max_devices(const struct ata_link *link) |
5806db22 | 1627 | { |
8989805d | 1628 | if (ata_is_host_link(link) && link->ap->flags & ATA_FLAG_SLAVE_POSS) |
5806db22 TH |
1629 | return 2; |
1630 | return 1; | |
1631 | } | |
1632 | ||
da917d69 TH |
1633 | static inline int ata_link_active(struct ata_link *link) |
1634 | { | |
1635 | return ata_tag_valid(link->active_tag) || link->sactive; | |
1636 | } | |
1637 | ||
1eca4365 TH |
1638 | /* |
1639 | * Iterators | |
1640 | * | |
1641 | * ATA_LITER_* constants are used to select link iteration mode and | |
1642 | * ATA_DITER_* device iteration mode. | |
1643 | * | |
1644 | * For a custom iteration directly using ata_{link|dev}_next(), if | |
1645 | * @link or @dev, respectively, is NULL, the first element is | |
1646 | * returned. @dev and @link can be any valid device or link and the | |
1647 | * next element according to the iteration mode will be returned. | |
1648 | * After the last element, NULL is returned. | |
1649 | */ | |
1650 | enum ata_link_iter_mode { | |
1651 | ATA_LITER_EDGE, /* if present, PMP links only; otherwise, | |
1652 | * host link. no slave link */ | |
1653 | ATA_LITER_HOST_FIRST, /* host link followed by PMP or slave links */ | |
1654 | ATA_LITER_PMP_FIRST, /* PMP links followed by host link, | |
1655 | * slave link still comes after host link */ | |
1656 | }; | |
1657 | ||
1658 | enum ata_dev_iter_mode { | |
1659 | ATA_DITER_ENABLED, | |
1660 | ATA_DITER_ENABLED_REVERSE, | |
1661 | ATA_DITER_ALL, | |
1662 | ATA_DITER_ALL_REVERSE, | |
1663 | }; | |
1664 | ||
1665 | extern struct ata_link *ata_link_next(struct ata_link *link, | |
1666 | struct ata_port *ap, | |
1667 | enum ata_link_iter_mode mode); | |
1668 | ||
1669 | extern struct ata_device *ata_dev_next(struct ata_device *dev, | |
1670 | struct ata_link *link, | |
1671 | enum ata_dev_iter_mode mode); | |
1672 | ||
1673 | /* | |
1674 | * Shortcut notation for iterations | |
1675 | * | |
1676 | * ata_for_each_link() iterates over each link of @ap according to | |
1677 | * @mode. @link points to the current link in the loop. @link is | |
1678 | * NULL after loop termination. ata_for_each_dev() works the same way | |
1679 | * except that it iterates over each device of @link. | |
1680 | * | |
1681 | * Note that the mode prefixes ATA_{L|D}ITER_ shouldn't need to be | |
1682 | * specified when using the following shorthand notations. Only the | |
1683 | * mode itself (EDGE, HOST_FIRST, ENABLED, etc...) should be | |
1684 | * specified. This not only increases brevity but also makes it | |
1685 | * impossible to use ATA_LITER_* for device iteration or vice-versa. | |
1686 | */ | |
1687 | #define ata_for_each_link(link, ap, mode) \ | |
1688 | for ((link) = ata_link_next(NULL, (ap), ATA_LITER_##mode); (link); \ | |
1689 | (link) = ata_link_next((link), (ap), ATA_LITER_##mode)) | |
1690 | ||
1691 | #define ata_for_each_dev(dev, link, mode) \ | |
1692 | for ((dev) = ata_dev_next(NULL, (link), ATA_DITER_##mode); (dev); \ | |
1693 | (dev) = ata_dev_next((dev), (link), ATA_DITER_##mode)) | |
5806db22 | 1694 | |
6d1245bf | 1695 | /** |
fa5bde13 DLM |
1696 | * ata_ncq_supported - Test whether NCQ is supported |
1697 | * @dev: ATA device to test | |
6d1245bf TH |
1698 | * |
1699 | * LOCKING: | |
1700 | * spin_lock_irqsave(host lock) | |
1701 | * | |
1702 | * RETURNS: | |
fa5bde13 | 1703 | * true if @dev supports NCQ, false otherwise. |
6d1245bf | 1704 | */ |
fa5bde13 | 1705 | static inline bool ata_ncq_supported(struct ata_device *dev) |
6d1245bf | 1706 | { |
7caa30ea | 1707 | if (!IS_ENABLED(CONFIG_SATA_HOST)) |
fa5bde13 DLM |
1708 | return false; |
1709 | return (dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ; | |
1710 | } | |
1711 | ||
1712 | /** | |
1713 | * ata_ncq_enabled - Test whether NCQ is enabled | |
1714 | * @dev: ATA device to test | |
1715 | * | |
1716 | * LOCKING: | |
1717 | * spin_lock_irqsave(host lock) | |
1718 | * | |
1719 | * RETURNS: | |
1720 | * true if NCQ is enabled for @dev, false otherwise. | |
1721 | */ | |
1722 | static inline bool ata_ncq_enabled(struct ata_device *dev) | |
1723 | { | |
1724 | return ata_ncq_supported(dev) && !(dev->flags & ATA_DFLAG_NCQ_OFF); | |
6d1245bf | 1725 | } |
0baab86b | 1726 | |
87fb6c31 MC |
1727 | static inline bool ata_fpdma_dsm_supported(struct ata_device *dev) |
1728 | { | |
1729 | return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) && | |
1730 | (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET] & | |
1731 | ATA_LOG_NCQ_SEND_RECV_DSM_TRIM); | |
1732 | } | |
1733 | ||
5c65d8bb HR |
1734 | static inline bool ata_fpdma_read_log_supported(struct ata_device *dev) |
1735 | { | |
1736 | return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) && | |
1737 | (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET] & | |
1738 | ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED); | |
1739 | } | |
1740 | ||
28a3fc22 HR |
1741 | static inline bool ata_fpdma_zac_mgmt_in_supported(struct ata_device *dev) |
1742 | { | |
1743 | return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) && | |
1744 | (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OFFSET] & | |
1745 | ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_IN_SUPPORTED); | |
1746 | } | |
1747 | ||
284b3b77 HR |
1748 | static inline bool ata_fpdma_zac_mgmt_out_supported(struct ata_device *dev) |
1749 | { | |
1750 | return (dev->ncq_non_data_cmds[ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OFFSET] & | |
1751 | ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OUT); | |
1752 | } | |
1753 | ||
1da177e4 LT |
1754 | static inline void ata_qc_set_polling(struct ata_queued_cmd *qc) |
1755 | { | |
1756 | qc->tf.ctl |= ATA_NIEN; | |
1757 | } | |
1758 | ||
f69499f4 TH |
1759 | static inline struct ata_queued_cmd *__ata_qc_from_tag(struct ata_port *ap, |
1760 | unsigned int tag) | |
1da177e4 | 1761 | { |
28361c40 | 1762 | if (ata_tag_valid(tag)) |
1da177e4 LT |
1763 | return &ap->qcmd[tag]; |
1764 | return NULL; | |
1765 | } | |
1766 | ||
f69499f4 TH |
1767 | static inline struct ata_queued_cmd *ata_qc_from_tag(struct ata_port *ap, |
1768 | unsigned int tag) | |
1769 | { | |
1770 | struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag); | |
1771 | ||
1772 | if (unlikely(!qc) || !ap->ops->error_handler) | |
1773 | return qc; | |
1774 | ||
1775 | if ((qc->flags & (ATA_QCFLAG_ACTIVE | | |
87629312 | 1776 | ATA_QCFLAG_EH)) == ATA_QCFLAG_ACTIVE) |
f69499f4 TH |
1777 | return qc; |
1778 | ||
1779 | return NULL; | |
1780 | } | |
1781 | ||
aacda375 TH |
1782 | static inline unsigned int ata_qc_raw_nbytes(struct ata_queued_cmd *qc) |
1783 | { | |
1784 | return qc->nbytes - min(qc->extrabytes, qc->nbytes); | |
1785 | } | |
1786 | ||
3373efd8 | 1787 | static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf) |
1da177e4 LT |
1788 | { |
1789 | memset(tf, 0, sizeof(*tf)); | |
1790 | ||
5fe7454a | 1791 | #ifdef CONFIG_ATA_SFF |
9af5c9c9 | 1792 | tf->ctl = dev->link->ap->ctl; |
5fe7454a TH |
1793 | #else |
1794 | tf->ctl = ATA_DEVCTL_OBS; | |
1795 | #endif | |
3373efd8 | 1796 | if (dev->devno == 0) |
1da177e4 LT |
1797 | tf->device = ATA_DEVICE_OBS; |
1798 | else | |
1799 | tf->device = ATA_DEVICE_OBS | ATA_DEV1; | |
1800 | } | |
1801 | ||
2c13b7ce JG |
1802 | static inline void ata_qc_reinit(struct ata_queued_cmd *qc) |
1803 | { | |
501e0c50 | 1804 | qc->dma_dir = DMA_NONE; |
ff2aeb1e | 1805 | qc->sg = NULL; |
2c13b7ce | 1806 | qc->flags = 0; |
87260216 JA |
1807 | qc->cursg = NULL; |
1808 | qc->cursg_ofs = 0; | |
aacda375 | 1809 | qc->nbytes = qc->extrabytes = qc->curbytes = 0; |
7a801184 | 1810 | qc->n_elem = 0; |
a22e2eb0 | 1811 | qc->err_mask = 0; |
5a5dbd18 | 1812 | qc->sect_size = ATA_SECT_SIZE; |
2c13b7ce | 1813 | |
3373efd8 | 1814 | ata_tf_init(qc->dev, &qc->tf); |
e61e0672 TH |
1815 | |
1816 | /* init result_tf such that it indicates normal completion */ | |
1817 | qc->result_tf.command = ATA_DRDY; | |
1818 | qc->result_tf.feature = 0; | |
2c13b7ce JG |
1819 | } |
1820 | ||
057ace5e | 1821 | static inline int ata_try_flush_cache(const struct ata_device *dev) |
1da177e4 LT |
1822 | { |
1823 | return ata_id_wcache_enabled(dev->id) || | |
1824 | ata_id_has_flush(dev->id) || | |
1825 | ata_id_has_flush_ext(dev->id); | |
1826 | } | |
1827 | ||
a7dac447 JG |
1828 | static inline unsigned int ac_err_mask(u8 status) |
1829 | { | |
3655d1d3 | 1830 | if (status & (ATA_BUSY | ATA_DRQ)) |
11a56d24 | 1831 | return AC_ERR_HSM; |
a7dac447 JG |
1832 | if (status & (ATA_ERR | ATA_DF)) |
1833 | return AC_ERR_DEV; | |
1834 | return 0; | |
1835 | } | |
1836 | ||
1837 | static inline unsigned int __ac_err_mask(u8 status) | |
1838 | { | |
1839 | unsigned int mask = ac_err_mask(status); | |
1840 | if (mask == 0) | |
1841 | return AC_ERR_OTHER; | |
1842 | return mask; | |
1843 | } | |
1844 | ||
35bb94b1 JG |
1845 | static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host) |
1846 | { | |
4911487a | 1847 | return *(struct ata_port **)&host->hostdata[0]; |
35bb94b1 JG |
1848 | } |
1849 | ||
78ab88f0 TH |
1850 | static inline int ata_check_ready(u8 status) |
1851 | { | |
005b1f74 JG |
1852 | if (!(status & ATA_BUSY)) |
1853 | return 1; | |
78ab88f0 TH |
1854 | |
1855 | /* 0xff indicates either no device or device not ready */ | |
1856 | if (status == 0xff) | |
1857 | return -ENODEV; | |
1858 | ||
005b1f74 | 1859 | return 0; |
78ab88f0 TH |
1860 | } |
1861 | ||
341c2c95 TH |
1862 | static inline unsigned long ata_deadline(unsigned long from_jiffies, |
1863 | unsigned long timeout_msecs) | |
1864 | { | |
1865 | return from_jiffies + msecs_to_jiffies(timeout_msecs); | |
1866 | } | |
1867 | ||
b15b3eba AC |
1868 | /* Don't open code these in drivers as there are traps. Firstly the range may |
1869 | change in future hardware and specs, secondly 0xFF means 'no DMA' but is | |
1870 | > UDMA_0. Dyma ddreigiau */ | |
1871 | ||
1872 | static inline int ata_using_mwdma(struct ata_device *adev) | |
1873 | { | |
1874 | if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4) | |
1875 | return 1; | |
1876 | return 0; | |
1877 | } | |
1878 | ||
1879 | static inline int ata_using_udma(struct ata_device *adev) | |
1880 | { | |
1881 | if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7) | |
1882 | return 1; | |
1883 | return 0; | |
1884 | } | |
1885 | ||
1886 | static inline int ata_dma_enabled(struct ata_device *adev) | |
1887 | { | |
1888 | return (adev->dma_mode == 0xFF ? 0 : 1); | |
1889 | } | |
48515f6c | 1890 | |
a9b2c120 BZ |
1891 | /************************************************************************** |
1892 | * PATA timings - drivers/ata/libata-pata-timings.c | |
1893 | */ | |
1894 | extern const struct ata_timing *ata_timing_find_mode(u8 xfer_mode); | |
1895 | extern int ata_timing_compute(struct ata_device *, unsigned short, | |
1896 | struct ata_timing *, int, int); | |
1897 | extern void ata_timing_merge(const struct ata_timing *, | |
1898 | const struct ata_timing *, struct ata_timing *, | |
1899 | unsigned int); | |
1900 | ||
48515f6c TH |
1901 | /************************************************************************** |
1902 | * PMP - drivers/ata/libata-pmp.c | |
1903 | */ | |
88fcd562 TH |
1904 | #ifdef CONFIG_SATA_PMP |
1905 | ||
48515f6c TH |
1906 | extern const struct ata_port_operations sata_pmp_port_ops; |
1907 | ||
1908 | extern int sata_pmp_qc_defer_cmd_switch(struct ata_queued_cmd *qc); | |
1909 | extern void sata_pmp_error_handler(struct ata_port *ap); | |
1910 | ||
88fcd562 TH |
1911 | #else /* CONFIG_SATA_PMP */ |
1912 | ||
1913 | #define sata_pmp_port_ops sata_port_ops | |
1914 | #define sata_pmp_qc_defer_cmd_switch ata_std_qc_defer | |
1915 | #define sata_pmp_error_handler ata_std_error_handler | |
1916 | ||
1917 | #endif /* CONFIG_SATA_PMP */ | |
1918 | ||
48515f6c | 1919 | |
624d5c51 TH |
1920 | /************************************************************************** |
1921 | * SFF - drivers/ata/libata-sff.c | |
1922 | */ | |
127102ae TH |
1923 | #ifdef CONFIG_ATA_SFF |
1924 | ||
624d5c51 | 1925 | extern const struct ata_port_operations ata_sff_port_ops; |
871af121 | 1926 | extern const struct ata_port_operations ata_bmdma32_port_ops; |
624d5c51 TH |
1927 | |
1928 | /* PIO only, sg_tablesize and dma_boundary limits can be removed */ | |
1929 | #define ATA_PIO_SHT(drv_name) \ | |
1930 | ATA_BASE_SHT(drv_name), \ | |
1931 | .sg_tablesize = LIBATA_MAX_PRD, \ | |
1932 | .dma_boundary = ATA_DMA_BOUNDARY | |
1933 | ||
9363c382 TH |
1934 | extern void ata_sff_dev_select(struct ata_port *ap, unsigned int device); |
1935 | extern u8 ata_sff_check_status(struct ata_port *ap); | |
a57c1bad AC |
1936 | extern void ata_sff_pause(struct ata_port *ap); |
1937 | extern void ata_sff_dma_pause(struct ata_port *ap); | |
705e76be | 1938 | extern int ata_sff_wait_ready(struct ata_link *link, unsigned long deadline); |
9363c382 TH |
1939 | extern void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf); |
1940 | extern void ata_sff_tf_read(struct ata_port *ap, struct ata_taskfile *tf); | |
1941 | extern void ata_sff_exec_command(struct ata_port *ap, | |
1942 | const struct ata_taskfile *tf); | |
989e0aac | 1943 | extern unsigned int ata_sff_data_xfer(struct ata_queued_cmd *qc, |
624d5c51 | 1944 | unsigned char *buf, unsigned int buflen, int rw); |
989e0aac | 1945 | extern unsigned int ata_sff_data_xfer32(struct ata_queued_cmd *qc, |
871af121 | 1946 | unsigned char *buf, unsigned int buflen, int rw); |
e42a542b | 1947 | extern void ata_sff_irq_on(struct ata_port *ap); |
9363c382 TH |
1948 | extern void ata_sff_irq_clear(struct ata_port *ap); |
1949 | extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, | |
1950 | u8 status, int in_wq); | |
64b97594 VK |
1951 | extern void ata_sff_queue_work(struct work_struct *work); |
1952 | extern void ata_sff_queue_delayed_work(struct delayed_work *dwork, | |
1953 | unsigned long delay); | |
ea3c6450 | 1954 | extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay); |
9363c382 | 1955 | extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc); |
931139af | 1956 | extern void ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc); |
c3b28894 | 1957 | extern unsigned int ata_sff_port_intr(struct ata_port *ap, |
9363c382 TH |
1958 | struct ata_queued_cmd *qc); |
1959 | extern irqreturn_t ata_sff_interrupt(int irq, void *dev_instance); | |
c96f1732 | 1960 | extern void ata_sff_lost_interrupt(struct ata_port *ap); |
9363c382 TH |
1961 | extern void ata_sff_freeze(struct ata_port *ap); |
1962 | extern void ata_sff_thaw(struct ata_port *ap); | |
1963 | extern int ata_sff_prereset(struct ata_link *link, unsigned long deadline); | |
1964 | extern unsigned int ata_sff_dev_classify(struct ata_device *dev, int present, | |
1965 | u8 *r_err); | |
705e76be TH |
1966 | extern int ata_sff_wait_after_reset(struct ata_link *link, unsigned int devmask, |
1967 | unsigned long deadline); | |
9363c382 | 1968 | extern int ata_sff_softreset(struct ata_link *link, unsigned int *classes, |
624d5c51 | 1969 | unsigned long deadline); |
9363c382 TH |
1970 | extern int sata_sff_hardreset(struct ata_link *link, unsigned int *class, |
1971 | unsigned long deadline); | |
1972 | extern void ata_sff_postreset(struct ata_link *link, unsigned int *classes); | |
3d47aa8e | 1973 | extern void ata_sff_drain_fifo(struct ata_queued_cmd *qc); |
9363c382 | 1974 | extern void ata_sff_error_handler(struct ata_port *ap); |
9363c382 | 1975 | extern void ata_sff_std_ports(struct ata_ioports *ioaddr); |
624d5c51 | 1976 | #ifdef CONFIG_PCI |
9363c382 TH |
1977 | extern int ata_pci_sff_init_host(struct ata_host *host); |
1978 | extern int ata_pci_sff_prepare_host(struct pci_dev *pdev, | |
624d5c51 TH |
1979 | const struct ata_port_info * const * ppi, |
1980 | struct ata_host **r_host); | |
9363c382 | 1981 | extern int ata_pci_sff_activate_host(struct ata_host *host, |
624d5c51 | 1982 | irq_handler_t irq_handler, |
25df73d9 | 1983 | const struct scsi_host_template *sht); |
9363c382 | 1984 | extern int ata_pci_sff_init_one(struct pci_dev *pdev, |
16ea0fc9 | 1985 | const struct ata_port_info * const * ppi, |
25df73d9 | 1986 | const struct scsi_host_template *sht, void *host_priv, int hflags); |
624d5c51 TH |
1987 | #endif /* CONFIG_PCI */ |
1988 | ||
9a7780c9 TH |
1989 | #ifdef CONFIG_ATA_BMDMA |
1990 | ||
1991 | extern const struct ata_port_operations ata_bmdma_port_ops; | |
1992 | ||
1993 | #define ATA_BMDMA_SHT(drv_name) \ | |
1994 | ATA_BASE_SHT(drv_name), \ | |
1995 | .sg_tablesize = LIBATA_MAX_PRD, \ | |
1996 | .dma_boundary = ATA_DMA_BOUNDARY | |
1997 | ||
95364f36 | 1998 | extern enum ata_completion_errors ata_bmdma_qc_prep(struct ata_queued_cmd *qc); |
360ff783 | 1999 | extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc); |
95364f36 | 2000 | extern enum ata_completion_errors ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc); |
c3b28894 TH |
2001 | extern unsigned int ata_bmdma_port_intr(struct ata_port *ap, |
2002 | struct ata_queued_cmd *qc); | |
2003 | extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance); | |
fe06e5f9 TH |
2004 | extern void ata_bmdma_error_handler(struct ata_port *ap); |
2005 | extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc); | |
37f65b8b | 2006 | extern void ata_bmdma_irq_clear(struct ata_port *ap); |
9f2f7210 TH |
2007 | extern void ata_bmdma_setup(struct ata_queued_cmd *qc); |
2008 | extern void ata_bmdma_start(struct ata_queued_cmd *qc); | |
2009 | extern void ata_bmdma_stop(struct ata_queued_cmd *qc); | |
2010 | extern u8 ata_bmdma_status(struct ata_port *ap); | |
c7087652 TH |
2011 | extern int ata_bmdma_port_start(struct ata_port *ap); |
2012 | extern int ata_bmdma_port_start32(struct ata_port *ap); | |
9f2f7210 TH |
2013 | |
2014 | #ifdef CONFIG_PCI | |
2015 | extern int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev); | |
c7087652 | 2016 | extern void ata_pci_bmdma_init(struct ata_host *host); |
1c5afdf7 TH |
2017 | extern int ata_pci_bmdma_prepare_host(struct pci_dev *pdev, |
2018 | const struct ata_port_info * const * ppi, | |
2019 | struct ata_host **r_host); | |
2020 | extern int ata_pci_bmdma_init_one(struct pci_dev *pdev, | |
2021 | const struct ata_port_info * const * ppi, | |
25df73d9 | 2022 | const struct scsi_host_template *sht, |
1c5afdf7 | 2023 | void *host_priv, int hflags); |
9f2f7210 | 2024 | #endif /* CONFIG_PCI */ |
9a7780c9 | 2025 | #endif /* CONFIG_ATA_BMDMA */ |
9f2f7210 | 2026 | |
624d5c51 | 2027 | /** |
9363c382 | 2028 | * ata_sff_busy_wait - Wait for a port status register |
624d5c51 TH |
2029 | * @ap: Port to wait for. |
2030 | * @bits: bits that must be clear | |
2031 | * @max: number of 10uS waits to perform | |
2032 | * | |
2033 | * Waits up to max*10 microseconds for the selected bits in the port's | |
2034 | * status register to be cleared. | |
2035 | * Returns final value of status register. | |
2036 | * | |
2037 | * LOCKING: | |
2038 | * Inherited from caller. | |
2039 | */ | |
9363c382 TH |
2040 | static inline u8 ata_sff_busy_wait(struct ata_port *ap, unsigned int bits, |
2041 | unsigned int max) | |
624d5c51 TH |
2042 | { |
2043 | u8 status; | |
2044 | ||
2045 | do { | |
2046 | udelay(10); | |
5682ed33 | 2047 | status = ap->ops->sff_check_status(ap); |
624d5c51 TH |
2048 | max--; |
2049 | } while (status != 0xff && (status & bits) && (max > 0)); | |
2050 | ||
2051 | return status; | |
2052 | } | |
2053 | ||
2054 | /** | |
2055 | * ata_wait_idle - Wait for a port to be idle. | |
2056 | * @ap: Port to wait for. | |
2057 | * | |
2058 | * Waits up to 10ms for port's BUSY and DRQ signals to clear. | |
2059 | * Returns final value of status register. | |
2060 | * | |
2061 | * LOCKING: | |
2062 | * Inherited from caller. | |
2063 | */ | |
2064 | static inline u8 ata_wait_idle(struct ata_port *ap) | |
2065 | { | |
9363c382 | 2066 | u8 status = ata_sff_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); |
624d5c51 | 2067 | |
624d5c51 | 2068 | if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) |
742bef47 | 2069 | ata_port_dbg(ap, "abnormal Status 0x%X\n", status); |
624d5c51 TH |
2070 | |
2071 | return status; | |
2072 | } | |
127102ae | 2073 | #endif /* CONFIG_ATA_SFF */ |
624d5c51 | 2074 | |
1da177e4 | 2075 | #endif /* __LINUX_LIBATA_H__ */ |