Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 2 | * Copyright 2003-2005 Red Hat, Inc. All rights reserved. |
| 3 | * Copyright 2003-2005 Jeff Garzik |
| 4 | * |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2, or (at your option) |
| 9 | * any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; see the file COPYING. If not, write to |
| 18 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 | * |
| 20 | * |
| 21 | * libata documentation is available via 'make {ps|pdf}docs', |
| 22 | * as Documentation/DocBook/libata.* |
| 23 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | */ |
| 25 | |
| 26 | #ifndef __LINUX_LIBATA_H__ |
| 27 | #define __LINUX_LIBATA_H__ |
| 28 | |
| 29 | #include <linux/delay.h> |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 30 | #include <linux/jiffies.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #include <linux/interrupt.h> |
Andrew Morton | 1c72d8d | 2005-11-10 16:21:38 -0800 | [diff] [blame] | 32 | #include <linux/dma-mapping.h> |
Jens Axboe | 8726021 | 2007-10-16 11:14:12 +0200 | [diff] [blame] | 33 | #include <linux/scatterlist.h> |
Tejun Heo | f0d36ef | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 34 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <linux/ata.h> |
| 36 | #include <linux/workqueue.h> |
Jeff Garzik | 35bb94b | 2006-04-11 13:12:34 -0400 | [diff] [blame] | 37 | #include <scsi/scsi_host.h> |
Kristen Carlson Accardi | 11ef697 | 2006-09-28 11:29:01 -0700 | [diff] [blame] | 38 | #include <linux/acpi.h> |
Tejun Heo | ceb0c64 | 2007-12-05 16:43:06 +0900 | [diff] [blame] | 39 | #include <linux/cdrom.h> |
Tejun Heo | c0c362b | 2010-09-06 17:57:14 +0200 | [diff] [blame] | 40 | #include <linux/sched.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
Jeff Garzik | a6d967a | 2006-09-25 15:33:09 -0400 | [diff] [blame] | 42 | /* |
| 43 | * Define if arch has non-standard setup. This is a _PCI_ standard |
| 44 | * not a legacy or ISA standard. |
| 45 | */ |
| 46 | #ifdef CONFIG_ATA_NONSTANDARD |
Alan Cox | 2ec7df0 | 2006-08-10 16:59:10 +0900 | [diff] [blame] | 47 | #include <asm/libata-portmap.h> |
Jeff Garzik | a6d967a | 2006-09-25 15:33:09 -0400 | [diff] [blame] | 48 | #else |
| 49 | #include <asm-generic/libata-portmap.h> |
| 50 | #endif |
Alan Cox | 2ec7df0 | 2006-08-10 16:59:10 +0900 | [diff] [blame] | 51 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | /* |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 53 | * compile-time options: to be removed as soon as all the drivers are |
| 54 | * converted to the new debugging mechanism |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | */ |
| 56 | #undef ATA_DEBUG /* debugging output */ |
| 57 | #undef ATA_VERBOSE_DEBUG /* yet more debugging output */ |
| 58 | #undef ATA_IRQ_TRAP /* define to ack screaming irqs */ |
| 59 | #undef ATA_NDEBUG /* define to disable quick runtime checks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | |
| 61 | |
| 62 | /* note: prints function name for you */ |
| 63 | #ifdef ATA_DEBUG |
Alexander Beregalov | 1f938d0 | 2008-07-21 00:06:19 +0400 | [diff] [blame] | 64 | #define DPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | #ifdef ATA_VERBOSE_DEBUG |
Alexander Beregalov | 1f938d0 | 2008-07-21 00:06:19 +0400 | [diff] [blame] | 66 | #define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | #else |
| 68 | #define VPRINTK(fmt, args...) |
| 69 | #endif /* ATA_VERBOSE_DEBUG */ |
| 70 | #else |
| 71 | #define DPRINTK(fmt, args...) |
| 72 | #define VPRINTK(fmt, args...) |
| 73 | #endif /* ATA_DEBUG */ |
| 74 | |
Alexander Beregalov | 1f938d0 | 2008-07-21 00:06:19 +0400 | [diff] [blame] | 75 | #define BPRINTK(fmt, args...) if (ap->flags & ATA_FLAG_DEBUGMSG) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 76 | |
Joe Perches | 06296a1 | 2011-04-15 15:52:00 -0700 | [diff] [blame] | 77 | #define ata_print_version_once(dev, version) \ |
| 78 | ({ \ |
| 79 | static bool __print_once; \ |
| 80 | \ |
| 81 | if (!__print_once) { \ |
| 82 | __print_once = true; \ |
| 83 | ata_print_version(dev, version); \ |
| 84 | } \ |
| 85 | }) |
| 86 | |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 87 | /* NEW: debug levels */ |
| 88 | #define HAVE_LIBATA_MSG 1 |
| 89 | |
| 90 | enum { |
| 91 | ATA_MSG_DRV = 0x0001, |
| 92 | ATA_MSG_INFO = 0x0002, |
| 93 | ATA_MSG_PROBE = 0x0004, |
| 94 | ATA_MSG_WARN = 0x0008, |
| 95 | ATA_MSG_MALLOC = 0x0010, |
| 96 | ATA_MSG_CTL = 0x0020, |
| 97 | ATA_MSG_INTR = 0x0040, |
| 98 | ATA_MSG_ERR = 0x0080, |
| 99 | }; |
| 100 | |
| 101 | #define ata_msg_drv(p) ((p)->msg_enable & ATA_MSG_DRV) |
| 102 | #define ata_msg_info(p) ((p)->msg_enable & ATA_MSG_INFO) |
| 103 | #define ata_msg_probe(p) ((p)->msg_enable & ATA_MSG_PROBE) |
| 104 | #define ata_msg_warn(p) ((p)->msg_enable & ATA_MSG_WARN) |
| 105 | #define ata_msg_malloc(p) ((p)->msg_enable & ATA_MSG_MALLOC) |
| 106 | #define ata_msg_ctl(p) ((p)->msg_enable & ATA_MSG_CTL) |
| 107 | #define ata_msg_intr(p) ((p)->msg_enable & ATA_MSG_INTR) |
| 108 | #define ata_msg_err(p) ((p)->msg_enable & ATA_MSG_ERR) |
| 109 | |
| 110 | static inline u32 ata_msg_init(int dval, int default_msg_enable_bits) |
| 111 | { |
| 112 | if (dval < 0 || dval >= (sizeof(u32) * 8)) |
| 113 | return default_msg_enable_bits; /* should be 0x1 - only driver info msgs */ |
| 114 | if (!dval) |
| 115 | return 0; |
| 116 | return (1 << dval) - 1; |
| 117 | } |
| 118 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | /* defines only for the constants which don't work well as enums */ |
| 120 | #define ATA_TAG_POISON 0xfafbfcfdU |
| 121 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | enum { |
| 123 | /* various global constants */ |
| 124 | LIBATA_MAX_PRD = ATA_MAX_PRD / 2, |
Alan Cox | d26fc95 | 2007-07-06 19:13:52 -0400 | [diff] [blame] | 125 | LIBATA_DUMB_MAX_PRD = ATA_MAX_PRD / 4, /* Worst case */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | ATA_DEF_QUEUE = 1, |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 127 | /* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */ |
Tejun Heo | a6e6ce8 | 2006-05-15 21:03:48 +0900 | [diff] [blame] | 128 | ATA_MAX_QUEUE = 32, |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 129 | ATA_TAG_INTERNAL = ATA_MAX_QUEUE - 1, |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 130 | ATA_SHORT_PAUSE = 16, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | |
Tejun Heo | 140b5e5 | 2007-12-12 12:21:52 +0900 | [diff] [blame] | 132 | ATAPI_MAX_DRAIN = 16 << 10, |
| 133 | |
Tejun Heo | b558edd | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 134 | ATA_ALL_DEVICES = (1 << ATA_MAX_DEVICES) - 1, |
| 135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | ATA_SHT_EMULATED = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | ATA_SHT_THIS_ID = -1, |
Jeff Garzik | cf48293 | 2005-10-22 00:19:33 -0400 | [diff] [blame] | 138 | ATA_SHT_USE_CLUSTERING = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | |
Sergei Shtylyov | dc34e7e | 2013-07-01 00:01:32 +0400 | [diff] [blame] | 140 | /* struct ata_taskfile flags */ |
| 141 | ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */ |
| 142 | ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */ |
| 143 | ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */ |
| 144 | ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */ |
| 145 | ATA_TFLAG_LBA = (1 << 4), /* enable LBA */ |
| 146 | ATA_TFLAG_FUA = (1 << 5), /* enable FUA */ |
| 147 | ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */ |
| 148 | |
| 149 | /* protocol flags */ |
| 150 | ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ |
| 151 | ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ |
| 152 | ATA_PROT_FLAG_DATA = ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA, |
| 153 | ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ |
| 154 | ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ |
| 155 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | /* struct ata_device stuff */ |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 157 | ATA_DFLAG_LBA = (1 << 0), /* device supports LBA */ |
| 158 | ATA_DFLAG_LBA48 = (1 << 1), /* device supports LBA48 */ |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 159 | ATA_DFLAG_CDB_INTR = (1 << 2), /* device asserts INTRQ when ready for CDB */ |
Tejun Heo | 88e4903 | 2006-05-15 21:03:38 +0900 | [diff] [blame] | 160 | ATA_DFLAG_NCQ = (1 << 3), /* device supports NCQ */ |
Tejun Heo | 6fc49ad | 2006-11-11 20:10:45 +0900 | [diff] [blame] | 161 | ATA_DFLAG_FLUSH_EXT = (1 << 4), /* do FLUSH_EXT instead of FLUSH */ |
Tejun Heo | 6746544 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 162 | ATA_DFLAG_ACPI_PENDING = (1 << 5), /* ACPI resume action pending */ |
| 163 | ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */ |
Tejun Heo | 7d77b24 | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 164 | ATA_DFLAG_AN = (1 << 7), /* AN configured */ |
Tejun Heo | 9116300 | 2008-02-21 13:25:50 +0900 | [diff] [blame] | 165 | ATA_DFLAG_DMADIR = (1 << 10), /* device requires DMADIR */ |
Kristen Carlson Accardi | 2557164 | 2007-09-11 11:41:59 -0700 | [diff] [blame] | 166 | ATA_DFLAG_CFG_MASK = (1 << 12) - 1, |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 167 | |
Kristen Carlson Accardi | 2557164 | 2007-09-11 11:41:59 -0700 | [diff] [blame] | 168 | ATA_DFLAG_PIO = (1 << 12), /* device limited to PIO mode */ |
| 169 | ATA_DFLAG_NCQ_OFF = (1 << 13), /* device limited to non-NCQ mode */ |
Tejun Heo | 054a5fb | 2007-10-25 18:30:36 +0900 | [diff] [blame] | 170 | ATA_DFLAG_SLEEPING = (1 << 15), /* device is sleeping */ |
Tejun Heo | 00115e0 | 2007-11-27 19:28:58 +0900 | [diff] [blame] | 171 | ATA_DFLAG_DUBIOUS_XFER = (1 << 16), /* data transfer not verified */ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 172 | ATA_DFLAG_NO_UNLOAD = (1 << 17), /* device doesn't support unload */ |
Tejun Heo | 445d211 | 2010-04-05 10:33:13 +0900 | [diff] [blame] | 173 | ATA_DFLAG_UNLOCK_HPA = (1 << 18), /* unlock HPA */ |
Marc Carino | ed36911 | 2013-08-24 23:22:50 -0700 | [diff] [blame] | 174 | ATA_DFLAG_NCQ_SEND_RECV = (1 << 19), /* device supports NCQ SEND and RECV */ |
Tejun Heo | f20ded3 | 2007-11-27 19:28:52 +0900 | [diff] [blame] | 175 | ATA_DFLAG_INIT_MASK = (1 << 24) - 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
Tejun Heo | f20ded3 | 2007-11-27 19:28:52 +0900 | [diff] [blame] | 177 | ATA_DFLAG_DETACH = (1 << 24), |
| 178 | ATA_DFLAG_DETACHED = (1 << 25), |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 179 | |
Lin Ming | b1354cb | 2012-06-25 16:13:08 +0800 | [diff] [blame] | 180 | ATA_DFLAG_DA = (1 << 26), /* device supports Device Attention */ |
Shane Huang | 65fe1f0 | 2012-09-07 22:40:01 +0800 | [diff] [blame] | 181 | ATA_DFLAG_DEVSLP = (1 << 27), /* device supports Device Sleep */ |
Aaron Lu | 0d0cdb0 | 2012-11-26 13:55:25 +0800 | [diff] [blame] | 182 | ATA_DFLAG_ACPI_DISABLED = (1 << 28), /* ACPI for the device is disabled */ |
Lin Ming | b1354cb | 2012-06-25 16:13:08 +0800 | [diff] [blame] | 183 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | ATA_DEV_UNKNOWN = 0, /* unknown device */ |
| 185 | ATA_DEV_ATA = 1, /* ATA device */ |
| 186 | ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */ |
| 187 | ATA_DEV_ATAPI = 3, /* ATAPI device */ |
| 188 | ATA_DEV_ATAPI_UNSUP = 4, /* ATAPI device (unsupported) */ |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 189 | ATA_DEV_PMP = 5, /* SATA port multiplier */ |
| 190 | ATA_DEV_PMP_UNSUP = 6, /* SATA port multiplier (unsupported) */ |
| 191 | ATA_DEV_SEMB = 7, /* SEMB */ |
| 192 | ATA_DEV_SEMB_UNSUP = 8, /* SEMB (unsupported) */ |
Hannes Reinecke | 9162c65 | 2014-11-05 13:08:21 +0100 | [diff] [blame] | 193 | ATA_DEV_ZAC = 9, /* ZAC device */ |
| 194 | ATA_DEV_NONE = 10, /* no device */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 196 | /* struct ata_link flags */ |
Tejun Heo | 05944bd | 2008-08-13 20:19:09 +0900 | [diff] [blame] | 197 | ATA_LFLAG_NO_HRST = (1 << 1), /* avoid hardreset */ |
Tejun Heo | ae791c0 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 198 | ATA_LFLAG_NO_SRST = (1 << 2), /* avoid softreset */ |
| 199 | ATA_LFLAG_ASSUME_ATA = (1 << 3), /* assume ATA class */ |
| 200 | ATA_LFLAG_ASSUME_SEMB = (1 << 4), /* assume SEMB class */ |
| 201 | ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB, |
Tejun Heo | fd995f7 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 202 | ATA_LFLAG_NO_RETRY = (1 << 5), /* don't retry this link */ |
Tejun Heo | f9df58c | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 203 | ATA_LFLAG_DISABLED = (1 << 6), /* link is disabled */ |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 204 | ATA_LFLAG_SW_ACTIVITY = (1 << 7), /* keep activity stats */ |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 205 | ATA_LFLAG_NO_LPM = (1 << 8), /* disable LPM on this link */ |
Dan Williams | ca6d43b | 2012-06-21 23:41:41 -0700 | [diff] [blame] | 206 | ATA_LFLAG_RST_ONCE = (1 << 9), /* limit recovery to one reset */ |
Gabriele Mazzotta | 09c5b48 | 2015-04-25 19:52:37 +0200 | [diff] [blame] | 207 | ATA_LFLAG_CHANGED = (1 << 10), /* LPM state changed on this link */ |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 208 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | /* struct ata_port flags */ |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 210 | ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | /* (doesn't imply presence) */ |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 212 | ATA_FLAG_SATA = (1 << 1), |
Andreas Werner | ea013a9 | 2015-12-04 18:12:49 +0100 | [diff] [blame] | 213 | ATA_FLAG_NO_LOG_PAGE = (1 << 5), /* do not issue log page read */ |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 214 | ATA_FLAG_NO_ATAPI = (1 << 6), /* No ATAPI support */ |
| 215 | ATA_FLAG_PIO_DMA = (1 << 7), /* PIO cmds via DMA */ |
| 216 | ATA_FLAG_PIO_LBA48 = (1 << 8), /* Host DMA engine is LBA28 only */ |
Tejun Heo | 7395acb | 2006-05-31 18:27:25 +0900 | [diff] [blame] | 217 | ATA_FLAG_PIO_POLLING = (1 << 9), /* use polling PIO if LLD |
| 218 | * doesn't handle PIO interrupts */ |
| 219 | ATA_FLAG_NCQ = (1 << 10), /* host supports NCQ */ |
Rafael J. Wysocki | 2a6e58d | 2009-01-19 20:56:43 +0100 | [diff] [blame] | 220 | ATA_FLAG_NO_POWEROFF_SPINDOWN = (1 << 11), /* don't spindown before poweroff */ |
| 221 | ATA_FLAG_NO_HIBERNATE_SPINDOWN = (1 << 12), /* don't spindown before hibernation */ |
Tejun Heo | 7395acb | 2006-05-31 18:27:25 +0900 | [diff] [blame] | 222 | ATA_FLAG_DEBUGMSG = (1 << 13), |
Shaohua Li | 388539f | 2009-07-27 09:24:35 +0800 | [diff] [blame] | 223 | ATA_FLAG_FPDMA_AA = (1 << 14), /* driver supports Auto-Activate */ |
Tejun Heo | b2a8bbe | 2007-01-25 19:40:05 +0900 | [diff] [blame] | 224 | ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */ |
Alan Cox | f834e49 | 2007-02-07 13:46:00 -0800 | [diff] [blame] | 225 | ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */ |
Tejun Heo | 3cadbcc | 2007-05-15 03:28:15 +0900 | [diff] [blame] | 226 | ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */ |
Kristen Carlson Accardi | 9f45cbd | 2007-08-15 03:57:11 -0400 | [diff] [blame] | 227 | ATA_FLAG_AN = (1 << 18), /* controller supports AN */ |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 228 | ATA_FLAG_PMP = (1 << 19), /* controller supports PMP */ |
Marc Carino | 40fb59e | 2013-08-24 23:22:49 -0700 | [diff] [blame] | 229 | ATA_FLAG_FPDMA_AUX = (1 << 20), /* controller supports H2DFIS aux field */ |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 230 | ATA_FLAG_EM = (1 << 21), /* driver supports enclosure |
| 231 | * management */ |
| 232 | ATA_FLAG_SW_ACTIVITY = (1 << 22), /* driver supports sw activity |
| 233 | * led */ |
Tejun Heo | ae01b24 | 2011-03-16 11:14:55 +0100 | [diff] [blame] | 234 | ATA_FLAG_NO_DIPM = (1 << 23), /* host not happy with DIPM */ |
Linus Torvalds | a1480a1 | 2015-04-13 16:42:16 -0700 | [diff] [blame] | 235 | ATA_FLAG_SAS_HOST = (1 << 24), /* SAS host */ |
Jens Axboe | 9b84754 | 2006-01-06 09:28:07 +0100 | [diff] [blame] | 236 | |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 237 | /* bits 24:31 of ap->flags are reserved for LLD specific flags */ |
Alan Cox | 8d238e0 | 2006-01-17 20:50:31 +0000 | [diff] [blame] | 238 | |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 239 | |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 240 | /* struct ata_port pflags */ |
| 241 | ATA_PFLAG_EH_PENDING = (1 << 0), /* EH pending */ |
| 242 | ATA_PFLAG_EH_IN_PROGRESS = (1 << 1), /* EH in progress */ |
| 243 | ATA_PFLAG_FROZEN = (1 << 2), /* port is frozen */ |
| 244 | ATA_PFLAG_RECOVERED = (1 << 3), /* recovery action performed */ |
| 245 | ATA_PFLAG_LOADING = (1 << 4), /* boot/loading probe */ |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 246 | ATA_PFLAG_SCSI_HOTPLUG = (1 << 6), /* SCSI hotplug scheduled */ |
Tejun Heo | f4d6d00 | 2007-05-01 11:50:15 +0200 | [diff] [blame] | 247 | ATA_PFLAG_INITIALIZING = (1 << 7), /* being initialized, don't touch */ |
Tejun Heo | afaa5c3 | 2007-10-09 15:06:10 +0900 | [diff] [blame] | 248 | ATA_PFLAG_RESETTING = (1 << 8), /* reset in progress */ |
Tejun Heo | ece180d | 2008-11-03 20:04:37 +0900 | [diff] [blame] | 249 | ATA_PFLAG_UNLOADING = (1 << 9), /* driver is being unloaded */ |
| 250 | ATA_PFLAG_UNLOADED = (1 << 10), /* driver is unloaded */ |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 251 | |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 252 | ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */ |
Tejun Heo | 500530f | 2006-07-03 16:07:27 +0900 | [diff] [blame] | 253 | ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */ |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 254 | ATA_PFLAG_INIT_GTM_VALID = (1 << 19), /* initial gtm data valid */ |
Tejun Heo | dde4458 | 2006-02-02 00:56:10 +0900 | [diff] [blame] | 255 | |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 256 | ATA_PFLAG_PIO32 = (1 << 20), /* 32bit PIO */ |
| 257 | ATA_PFLAG_PIO32CHANGE = (1 << 21), /* 32bit PIO can be turned on/off */ |
Manuel Lauss | 8a3e33c | 2015-09-30 21:10:25 +0200 | [diff] [blame] | 258 | ATA_PFLAG_EXTERNAL = (1 << 22), /* eSATA/external port */ |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 259 | |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 260 | /* struct ata_queued_cmd flags */ |
| 261 | ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */ |
Tejun Heo | 001102d | 2007-12-05 16:43:09 +0900 | [diff] [blame] | 262 | ATA_QCFLAG_DMAMAP = (1 << 1), /* SG table is DMA mapped */ |
Tejun Heo | 2719736 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 263 | ATA_QCFLAG_IO = (1 << 3), /* standard IO command */ |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 264 | ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */ |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 265 | ATA_QCFLAG_CLEAR_EXCL = (1 << 5), /* clear excl_link on completion */ |
Tejun Heo | e027bd3 | 2007-10-26 16:19:26 +0900 | [diff] [blame] | 266 | ATA_QCFLAG_QUIET = (1 << 6), /* don't report device error */ |
Tejun Heo | 03faab7 | 2008-03-27 19:14:24 +0900 | [diff] [blame] | 267 | ATA_QCFLAG_RETRY = (1 << 7), /* retry after failure */ |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 268 | |
Tejun Heo | 9ec957f | 2006-05-15 20:57:58 +0900 | [diff] [blame] | 269 | ATA_QCFLAG_FAILED = (1 << 16), /* cmd failed and is owned by EH */ |
| 270 | ATA_QCFLAG_SENSE_VALID = (1 << 17), /* sense data valid */ |
| 271 | ATA_QCFLAG_EH_SCHEDULED = (1 << 18), /* EH scheduled (obsolete) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | |
Alan Cox | 4e5ec5d | 2006-03-27 18:42:40 +0100 | [diff] [blame] | 273 | /* host set flags */ |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 274 | ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */ |
Tejun Heo | ecef725 | 2007-04-17 23:44:06 +0900 | [diff] [blame] | 275 | ATA_HOST_STARTED = (1 << 1), /* Host started */ |
Arjan van de Ven | 886ad09 | 2009-01-09 15:54:07 -0800 | [diff] [blame] | 276 | ATA_HOST_PARALLEL_SCAN = (1 << 2), /* Ports on this host can be scanned in parallel */ |
Andy Whitcroft | db63a4c | 2012-05-04 22:15:10 +0100 | [diff] [blame] | 277 | ATA_HOST_IGNORE_ATA = (1 << 3), /* Ignore ATA devices on this host. */ |
Jeff Garzik | 9bec2e3 | 2006-08-31 00:02:15 -0400 | [diff] [blame] | 278 | |
Tejun Heo | b8b275e | 2007-07-10 15:55:43 +0900 | [diff] [blame] | 279 | /* bits 24:31 of host->flags are reserved for LLD specific flags */ |
| 280 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | /* various lengths of time */ |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 282 | ATA_TMOUT_BOOT = 30000, /* heuristic */ |
| 283 | ATA_TMOUT_BOOT_QUICK = 7000, /* heuristic */ |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 284 | ATA_TMOUT_INTERNAL_QUICK = 5000, |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 285 | ATA_TMOUT_MAX_PARK = 30000, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | |
Tejun Heo | b48d58f | 2010-04-09 19:46:38 +0900 | [diff] [blame] | 287 | /* |
| 288 | * GoVault needs 2s and iVDR disk HHD424020F7SV00 800ms. 2s |
| 289 | * is too much without parallel probing. Use 2s if parallel |
| 290 | * probing is available, 800ms otherwise. |
Tejun Heo | 88ff6ea | 2007-10-16 14:21:24 -0700 | [diff] [blame] | 291 | */ |
Tejun Heo | b48d58f | 2010-04-09 19:46:38 +0900 | [diff] [blame] | 292 | ATA_TMOUT_FF_WAIT_LONG = 2000, |
| 293 | ATA_TMOUT_FF_WAIT = 800, |
Tejun Heo | 88ff6ea | 2007-10-16 14:21:24 -0700 | [diff] [blame] | 294 | |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 295 | /* Spec mandates to wait for ">= 2ms" before checking status |
| 296 | * after reset. We wait 150ms, because that was the magic |
| 297 | * delay used for ATAPI devices in Hale Landis's ATADRVR, for |
| 298 | * the period of time between when the ATA command register is |
| 299 | * written, and then status is checked. Because waiting for |
| 300 | * "a while" before checking status is fine, post SRST, we |
| 301 | * perform this magic delay here as well. |
| 302 | * |
| 303 | * Old drivers/ide uses the 2mS rule and then waits for ready. |
| 304 | */ |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 305 | ATA_WAIT_AFTER_RESET = 150, |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 306 | |
Tejun Heo | 9dadd45 | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 307 | /* If PMP is supported, we have to do follow-up SRST. As some |
| 308 | * PMPs don't send D2H Reg FIS after hardreset, LLDs are |
| 309 | * advised to wait only for the following duration before |
| 310 | * doing SRST. |
| 311 | */ |
Stuart Hayes | e7d3ef1 | 2009-03-04 11:59:46 -0800 | [diff] [blame] | 312 | ATA_TMOUT_PMP_SRST_WAIT = 5000, |
Tejun Heo | 9dadd45 | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 313 | |
Gabriele Mazzotta | 09c5b48 | 2015-04-25 19:52:37 +0200 | [diff] [blame] | 314 | /* When the LPM policy is set to ATA_LPM_MAX_POWER, there might |
| 315 | * be a spurious PHY event, so ignore the first PHY event that |
| 316 | * occurs within 10s after the policy change. |
| 317 | */ |
| 318 | ATA_TMOUT_SPURIOUS_PHY = 10000, |
| 319 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | /* ATA bus states */ |
| 321 | BUS_UNKNOWN = 0, |
| 322 | BUS_DMA = 1, |
| 323 | BUS_IDLE = 2, |
| 324 | BUS_NOINTR = 3, |
| 325 | BUS_NODATA = 4, |
| 326 | BUS_TIMER = 5, |
| 327 | BUS_PIO = 6, |
| 328 | BUS_EDD = 7, |
| 329 | BUS_IDENTIFY = 8, |
| 330 | BUS_PACKET = 9, |
| 331 | |
| 332 | /* SATA port states */ |
| 333 | PORT_UNKNOWN = 0, |
| 334 | PORT_ENABLED = 1, |
| 335 | PORT_DISABLED = 2, |
| 336 | |
| 337 | /* encoding various smaller bitmaps into a single |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 338 | * unsigned long bitmap |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | */ |
Tejun Heo | 70cd071 | 2007-11-27 19:43:40 +0900 | [diff] [blame] | 340 | ATA_NR_PIO_MODES = 7, |
| 341 | ATA_NR_MWDMA_MODES = 5, |
| 342 | ATA_NR_UDMA_MODES = 8, |
Tejun Heo | 1da7b0d | 2006-03-06 04:31:56 +0900 | [diff] [blame] | 343 | |
| 344 | ATA_SHIFT_PIO = 0, |
Tejun Heo | 70cd071 | 2007-11-27 19:43:40 +0900 | [diff] [blame] | 345 | ATA_SHIFT_MWDMA = ATA_SHIFT_PIO + ATA_NR_PIO_MODES, |
| 346 | ATA_SHIFT_UDMA = ATA_SHIFT_MWDMA + ATA_NR_MWDMA_MODES, |
Tejun Heo | 1da7b0d | 2006-03-06 04:31:56 +0900 | [diff] [blame] | 347 | |
Jeff Garzik | cedc9a4 | 2005-10-05 07:13:30 -0400 | [diff] [blame] | 348 | /* size of buffer to pad xfers ending on unaligned boundaries */ |
| 349 | ATA_DMA_PAD_SZ = 4, |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 350 | |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 351 | /* ering size */ |
| 352 | ATA_ERING_SIZE = 32, |
| 353 | |
Tejun Heo | 31cc23b | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 354 | /* return values for ->qc_defer */ |
| 355 | ATA_DEFER_LINK = 1, |
| 356 | ATA_DEFER_PORT = 2, |
| 357 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 358 | /* desc_len for ata_eh_info and context */ |
| 359 | ATA_EH_DESC_LEN = 80, |
| 360 | |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 361 | /* reset / recovery action types */ |
| 362 | ATA_EH_REVALIDATE = (1 << 0), |
Tejun Heo | cf48062 | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 363 | ATA_EH_SOFTRESET = (1 << 1), /* meaningful only in ->prereset */ |
| 364 | ATA_EH_HARDRESET = (1 << 2), /* meaningful only in ->prereset */ |
| 365 | ATA_EH_RESET = ATA_EH_SOFTRESET | ATA_EH_HARDRESET, |
Tejun Heo | f9df58c | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 366 | ATA_EH_ENABLE_LINK = (1 << 3), |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 367 | ATA_EH_PARK = (1 << 5), /* unload heads and stop I/O */ |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 368 | |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 369 | ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_PARK, |
Tejun Heo | b5b3fa3 | 2008-07-31 17:02:42 +0900 | [diff] [blame] | 370 | ATA_EH_ALL_ACTIONS = ATA_EH_REVALIDATE | ATA_EH_RESET | |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 371 | ATA_EH_ENABLE_LINK, |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 372 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 373 | /* ata_eh_info->flags */ |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 374 | ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */ |
Tejun Heo | 1cdaf53 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 375 | ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */ |
| 376 | ATA_EHI_QUIET = (1 << 3), /* be quiet */ |
Tejun Heo | e2f3d75 | 2010-09-07 14:05:31 +0200 | [diff] [blame] | 377 | ATA_EHI_NO_RECOVERY = (1 << 4), /* no recovery */ |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 378 | |
Tejun Heo | 0d64a23 | 2007-04-23 02:41:05 +0900 | [diff] [blame] | 379 | ATA_EHI_DID_SOFTRESET = (1 << 16), /* already soft-reset this port */ |
| 380 | ATA_EHI_DID_HARDRESET = (1 << 17), /* already soft-reset this port */ |
| 381 | ATA_EHI_PRINTINFO = (1 << 18), /* print configuration info */ |
| 382 | ATA_EHI_SETMODE = (1 << 19), /* configure transfer mode */ |
Andrea Gelmini | 89692c0 | 2010-10-16 15:19:18 +0200 | [diff] [blame] | 383 | ATA_EHI_POST_SETMODE = (1 << 20), /* revalidating after setmode */ |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 384 | |
Tejun Heo | 0d64a23 | 2007-04-23 02:41:05 +0900 | [diff] [blame] | 385 | ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET, |
Tejun Heo | 13abf50 | 2006-07-10 23:18:46 +0900 | [diff] [blame] | 386 | |
Tejun Heo | 848e4c6 | 2008-10-21 14:26:39 +0900 | [diff] [blame] | 387 | /* mask of flags to transfer *to* the slave link */ |
| 388 | ATA_EHI_TO_SLAVE_MASK = ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, |
| 389 | |
Tejun Heo | a1e10f7 | 2007-08-18 13:28:49 +0900 | [diff] [blame] | 390 | /* max tries if error condition is still set after ->error_handler */ |
| 391 | ATA_EH_MAX_TRIES = 5, |
Tejun Heo | ad9e276 | 2006-05-15 20:58:12 +0900 | [diff] [blame] | 392 | |
Tejun Heo | 5040ab6 | 2010-01-11 11:14:44 +0900 | [diff] [blame] | 393 | /* sometimes resuming a link requires several retries */ |
| 394 | ATA_LINK_RESUME_TRIES = 5, |
| 395 | |
Tejun Heo | 14d2bac | 2006-04-02 17:54:46 +0900 | [diff] [blame] | 396 | /* how hard are we gonna try to probe/recover devices */ |
| 397 | ATA_PROBE_MAX_TRIES = 3, |
Tejun Heo | 022bdb0 | 2006-05-15 20:58:22 +0900 | [diff] [blame] | 398 | ATA_EH_DEV_TRIES = 3, |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 399 | ATA_EH_PMP_TRIES = 5, |
| 400 | ATA_EH_PMP_LINK_TRIES = 3, |
| 401 | |
Tejun Heo | bf1bff6 | 2008-05-19 01:15:10 +0900 | [diff] [blame] | 402 | SATA_PMP_RW_TIMEOUT = 3000, /* PMP read/write timeout */ |
Tejun Heo | f5914a4 | 2006-05-31 18:27:48 +0900 | [diff] [blame] | 403 | |
Tejun Heo | 87fbc5a | 2008-05-20 02:17:54 +0900 | [diff] [blame] | 404 | /* This should match the actual table size of |
| 405 | * ata_eh_cmd_timeout_table in libata-eh.c. |
| 406 | */ |
Tejun Heo | 6013efd | 2009-11-19 15:36:45 +0900 | [diff] [blame] | 407 | ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 6, |
Tejun Heo | 87fbc5a | 2008-05-20 02:17:54 +0900 | [diff] [blame] | 408 | |
Alan Cox | 9359085 | 2006-09-12 16:55:12 +0100 | [diff] [blame] | 409 | /* Horkage types. May be set by libata or controller on drives |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 410 | (some horkage may be drive/controller pair dependent */ |
Alan Cox | 9359085 | 2006-09-12 16:55:12 +0100 | [diff] [blame] | 411 | |
| 412 | ATA_HORKAGE_DIAGNOSTIC = (1 << 0), /* Failed boot diag */ |
Alan Cox | 6919a0a | 2006-10-27 19:08:46 -0700 | [diff] [blame] | 413 | ATA_HORKAGE_NODMA = (1 << 1), /* DMA problems */ |
| 414 | ATA_HORKAGE_NONCQ = (1 << 2), /* Don't use NCQ */ |
Albert Lee | 18d6e9d | 2007-04-02 11:34:15 +0800 | [diff] [blame] | 415 | ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */ |
Tejun Heo | 16c55b0 | 2007-08-29 11:58:33 +0900 | [diff] [blame] | 416 | ATA_HORKAGE_BROKEN_HPA = (1 << 4), /* Broken HPA */ |
Tejun Heo | 50af2fa | 2008-05-19 01:15:14 +0900 | [diff] [blame] | 417 | ATA_HORKAGE_DISABLE = (1 << 5), /* Disable it */ |
Alan Cox | 93328e1 | 2007-09-29 04:06:48 -0400 | [diff] [blame] | 418 | ATA_HORKAGE_HPA_SIZE = (1 << 6), /* native size off by one */ |
Alan Cox | 6bbfd53 | 2007-11-05 22:58:58 +0000 | [diff] [blame] | 419 | ATA_HORKAGE_IVB = (1 << 8), /* cbl det validity bit bugs */ |
Albert Lee | 2d3b8ee | 2007-11-15 10:35:46 +0900 | [diff] [blame] | 420 | ATA_HORKAGE_STUCK_ERR = (1 << 9), /* stuck ERR on next PACKET */ |
Jens Axboe | 9ce8e30 | 2008-08-27 15:23:18 +0200 | [diff] [blame] | 421 | ATA_HORKAGE_BRIDGE_OK = (1 << 10), /* no bridge limits */ |
Tejun Heo | 6a87e42 | 2008-11-03 19:01:09 +0900 | [diff] [blame] | 422 | ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11), /* use ATAPI DMA for commands |
| 423 | not multiple of 16 bytes */ |
Nick Andrew | 877d031 | 2009-01-26 11:06:57 +0100 | [diff] [blame] | 424 | ATA_HORKAGE_FIRMWARE_WARN = (1 << 12), /* firmware update warning */ |
Tejun Heo | 9062712 | 2009-01-29 20:31:36 +0900 | [diff] [blame] | 425 | ATA_HORKAGE_1_5_GBPS = (1 << 13), /* force 1.5 Gbps */ |
Tejun Heo | d0cb43b | 2009-07-09 09:27:50 +0900 | [diff] [blame] | 426 | ATA_HORKAGE_NOSETXFER = (1 << 14), /* skip SETXFER, SATA only */ |
Shaohua Li | 388539f | 2009-07-27 09:24:35 +0800 | [diff] [blame] | 427 | ATA_HORKAGE_BROKEN_FPDMA_AA = (1 << 15), /* skip AA */ |
Tejun Heo | 43c9c59 | 2010-05-23 12:59:11 +0200 | [diff] [blame] | 428 | ATA_HORKAGE_DUMP_ID = (1 << 16), /* dump IDENTIFY data */ |
Shan Hai | a32450e | 2013-03-18 10:30:44 +0800 | [diff] [blame] | 429 | ATA_HORKAGE_MAX_SEC_LBA48 = (1 << 17), /* Set max sects to 65535 */ |
Vincent Pelletier | 966fbe1 | 2013-05-21 22:30:58 +0200 | [diff] [blame] | 430 | ATA_HORKAGE_ATAPI_DMADIR = (1 << 18), /* device requires dmadir */ |
Marc Carino | f78dea0 | 2013-12-16 18:15:53 -0800 | [diff] [blame] | 431 | ATA_HORKAGE_NO_NCQ_TRIM = (1 << 19), /* don't use queued TRIM */ |
Tejun Heo | ecd75ad | 2014-01-16 09:47:17 -0500 | [diff] [blame] | 432 | ATA_HORKAGE_NOLPM = (1 << 20), /* don't use LPM */ |
| 433 | ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21), /* some WDs have broken LPM */ |
Martin K. Petersen | e61f7d1 | 2015-01-08 10:34:27 -0500 | [diff] [blame] | 434 | ATA_HORKAGE_ZERO_AFTER_TRIM = (1 << 22),/* guarantees zero after trim */ |
Martin K. Petersen | 5d3abf8 | 2015-05-04 21:54:21 -0400 | [diff] [blame] | 435 | ATA_HORKAGE_NO_NCQ_LOG = (1 << 23), /* don't use NCQ for log read */ |
Arne Fitzenreiter | 71d126f | 2015-07-15 13:54:36 +0200 | [diff] [blame] | 436 | ATA_HORKAGE_NOTRIM = (1 << 24), /* don't use TRIM */ |
David Milburn | af34d63 | 2015-07-13 11:48:23 -0500 | [diff] [blame] | 437 | ATA_HORKAGE_MAX_SEC_1024 = (1 << 25), /* Limit max sects to 1024 */ |
Alan Cox | b3a7060 | 2007-10-02 12:38:26 -0400 | [diff] [blame] | 438 | |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 439 | /* DMA mask for user DMA control: User visible values; DO NOT |
Alan Cox | b3a7060 | 2007-10-02 12:38:26 -0400 | [diff] [blame] | 440 | renumber */ |
| 441 | ATA_DMA_MASK_ATA = (1 << 0), /* DMA on ATA Disk */ |
| 442 | ATA_DMA_MASK_ATAPI = (1 << 1), /* DMA on ATAPI */ |
| 443 | ATA_DMA_MASK_CFA = (1 << 2), /* DMA on CF Card */ |
Tejun Heo | ceb0c64 | 2007-12-05 16:43:06 +0900 | [diff] [blame] | 444 | |
| 445 | /* ATAPI command types */ |
| 446 | ATAPI_READ = 0, /* READs */ |
| 447 | ATAPI_WRITE = 1, /* WRITEs */ |
| 448 | ATAPI_READ_CD = 2, /* READ CD [MSF] */ |
Tejun Heo | e52dcc4 | 2008-04-02 17:35:19 +0900 | [diff] [blame] | 449 | ATAPI_PASS_THRU = 3, /* SAT pass-thru */ |
| 450 | ATAPI_MISC = 4, /* the rest */ |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 451 | |
| 452 | /* Timing constants */ |
| 453 | ATA_TIMING_SETUP = (1 << 0), |
| 454 | ATA_TIMING_ACT8B = (1 << 1), |
| 455 | ATA_TIMING_REC8B = (1 << 2), |
| 456 | ATA_TIMING_CYC8B = (1 << 3), |
| 457 | ATA_TIMING_8BIT = ATA_TIMING_ACT8B | ATA_TIMING_REC8B | |
| 458 | ATA_TIMING_CYC8B, |
| 459 | ATA_TIMING_ACTIVE = (1 << 4), |
| 460 | ATA_TIMING_RECOVER = (1 << 5), |
David Daney | 3ada9c1 | 2009-01-15 17:45:31 -0800 | [diff] [blame] | 461 | ATA_TIMING_DMACK_HOLD = (1 << 6), |
| 462 | ATA_TIMING_CYCLE = (1 << 7), |
| 463 | ATA_TIMING_UDMA = (1 << 8), |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 464 | ATA_TIMING_ALL = ATA_TIMING_SETUP | ATA_TIMING_ACT8B | |
| 465 | ATA_TIMING_REC8B | ATA_TIMING_CYC8B | |
| 466 | ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER | |
David Daney | 3ada9c1 | 2009-01-15 17:45:31 -0800 | [diff] [blame] | 467 | ATA_TIMING_DMACK_HOLD | ATA_TIMING_CYCLE | |
| 468 | ATA_TIMING_UDMA, |
Tejun Heo | f1bce7f | 2009-09-16 04:16:04 +0900 | [diff] [blame] | 469 | |
| 470 | /* ACPI constants */ |
| 471 | ATA_ACPI_FILTER_SETXFER = 1 << 0, |
| 472 | ATA_ACPI_FILTER_LOCK = 1 << 1, |
| 473 | ATA_ACPI_FILTER_DIPM = 1 << 2, |
Tejun Heo | fa5b561 | 2009-09-16 04:17:02 +0900 | [diff] [blame] | 474 | ATA_ACPI_FILTER_FPDMA_OFFSET = 1 << 3, /* FPDMA non-zero offset */ |
| 475 | ATA_ACPI_FILTER_FPDMA_AA = 1 << 4, /* FPDMA auto activate */ |
Tejun Heo | f1bce7f | 2009-09-16 04:16:04 +0900 | [diff] [blame] | 476 | |
| 477 | ATA_ACPI_FILTER_DEFAULT = ATA_ACPI_FILTER_SETXFER | |
| 478 | ATA_ACPI_FILTER_LOCK | |
| 479 | ATA_ACPI_FILTER_DIPM, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | }; |
| 481 | |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 482 | enum ata_xfer_mask { |
| 483 | ATA_MASK_PIO = ((1LU << ATA_NR_PIO_MODES) - 1) |
| 484 | << ATA_SHIFT_PIO, |
| 485 | ATA_MASK_MWDMA = ((1LU << ATA_NR_MWDMA_MODES) - 1) |
| 486 | << ATA_SHIFT_MWDMA, |
| 487 | ATA_MASK_UDMA = ((1LU << ATA_NR_UDMA_MODES) - 1) |
| 488 | << ATA_SHIFT_UDMA, |
| 489 | }; |
| 490 | |
Albert Lee | 14be71f | 2005-09-27 17:36:35 +0800 | [diff] [blame] | 491 | enum hsm_task_states { |
Albert Lee | c56b14d2 | 2005-09-30 19:07:39 +0800 | [diff] [blame] | 492 | HSM_ST_IDLE, /* no command on going */ |
Albert Lee | 7152764 | 2007-04-02 11:28:52 +0800 | [diff] [blame] | 493 | HSM_ST_FIRST, /* (waiting the device to) |
| 494 | write CDB or first data block */ |
Albert Lee | c56b14d2 | 2005-09-30 19:07:39 +0800 | [diff] [blame] | 495 | HSM_ST, /* (waiting the device to) transfer data */ |
| 496 | HSM_ST_LAST, /* (waiting the device to) complete command */ |
Albert Lee | c56b14d2 | 2005-09-30 19:07:39 +0800 | [diff] [blame] | 497 | HSM_ST_ERR, /* error */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | }; |
| 499 | |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 500 | enum ata_completion_errors { |
Tejun Heo | 11a56d2 | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 501 | AC_ERR_DEV = (1 << 0), /* device reported error */ |
| 502 | AC_ERR_HSM = (1 << 1), /* host state machine violation */ |
| 503 | AC_ERR_TIMEOUT = (1 << 2), /* timeout */ |
| 504 | AC_ERR_MEDIA = (1 << 3), /* media error */ |
| 505 | AC_ERR_ATA_BUS = (1 << 4), /* ATA bus error */ |
| 506 | AC_ERR_HOST_BUS = (1 << 5), /* host bus error */ |
| 507 | AC_ERR_SYSTEM = (1 << 6), /* system error */ |
| 508 | AC_ERR_INVALID = (1 << 7), /* invalid argument */ |
| 509 | AC_ERR_OTHER = (1 << 8), /* unknown */ |
Tejun Heo | 55a8e2c | 2006-11-10 18:08:10 +0900 | [diff] [blame] | 510 | AC_ERR_NODEV_HINT = (1 << 9), /* polling device detection hint */ |
Tejun Heo | 5335b72 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 511 | AC_ERR_NCQ = (1 << 10), /* marker for offending NCQ qc */ |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 512 | }; |
| 513 | |
Tejun Heo | c93b263 | 2010-09-01 17:50:04 +0200 | [diff] [blame] | 514 | /* |
| 515 | * Link power management policy: If you alter this, you also need to |
| 516 | * alter libata-scsi.c (for the ascii descriptions) |
| 517 | */ |
| 518 | enum ata_lpm_policy { |
| 519 | ATA_LPM_UNKNOWN, |
| 520 | ATA_LPM_MAX_POWER, |
| 521 | ATA_LPM_MED_POWER, |
| 522 | ATA_LPM_MIN_POWER, |
| 523 | }; |
| 524 | |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 525 | enum ata_lpm_hints { |
| 526 | ATA_LPM_EMPTY = (1 << 0), /* port empty/probing */ |
| 527 | ATA_LPM_HIPM = (1 << 1), /* may use HIPM */ |
| 528 | }; |
| 529 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | /* forward declarations */ |
| 531 | struct scsi_device; |
| 532 | struct ata_port_operations; |
| 533 | struct ata_port; |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 534 | struct ata_link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | struct ata_queued_cmd; |
| 536 | |
| 537 | /* typedefs */ |
Tejun Heo | 77853bf | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 538 | typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc); |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 539 | typedef int (*ata_prereset_fn_t)(struct ata_link *link, unsigned long deadline); |
| 540 | typedef int (*ata_reset_fn_t)(struct ata_link *link, unsigned int *classes, |
Tejun Heo | d4b2bab | 2007-02-02 16:50:52 +0900 | [diff] [blame] | 541 | unsigned long deadline); |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 542 | typedef void (*ata_postreset_fn_t)(struct ata_link *link, unsigned int *classes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 544 | extern struct device_attribute dev_attr_link_power_management_policy; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 545 | extern struct device_attribute dev_attr_unload_heads; |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 546 | extern struct device_attribute dev_attr_em_message_type; |
| 547 | extern struct device_attribute dev_attr_em_message; |
| 548 | extern struct device_attribute dev_attr_sw_activity; |
| 549 | |
| 550 | enum sw_activity { |
| 551 | OFF, |
| 552 | BLINK_ON, |
| 553 | BLINK_OFF, |
| 554 | }; |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 555 | |
Sergei Shtylyov | dc34e7e | 2013-07-01 00:01:32 +0400 | [diff] [blame] | 556 | struct ata_taskfile { |
| 557 | unsigned long flags; /* ATA_TFLAG_xxx */ |
| 558 | u8 protocol; /* ATA_PROT_xxx */ |
| 559 | |
| 560 | u8 ctl; /* control reg */ |
| 561 | |
| 562 | u8 hob_feature; /* additional data */ |
| 563 | u8 hob_nsect; /* to support LBA48 */ |
| 564 | u8 hob_lbal; |
| 565 | u8 hob_lbam; |
| 566 | u8 hob_lbah; |
| 567 | |
| 568 | u8 feature; |
| 569 | u8 nsect; |
| 570 | u8 lbal; |
| 571 | u8 lbam; |
| 572 | u8 lbah; |
| 573 | |
| 574 | u8 device; |
| 575 | |
| 576 | u8 command; /* IO operation */ |
Marc Carino | 8be5ad9 | 2013-08-24 23:22:48 -0700 | [diff] [blame] | 577 | |
| 578 | u32 auxiliary; /* auxiliary field */ |
| 579 | /* from SATA 3.1 and */ |
| 580 | /* ATA-8 ACS-3 */ |
Sergei Shtylyov | dc34e7e | 2013-07-01 00:01:32 +0400 | [diff] [blame] | 581 | }; |
| 582 | |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 583 | #ifdef CONFIG_ATA_SFF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | struct ata_ioports { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 585 | void __iomem *cmd_addr; |
| 586 | void __iomem *data_addr; |
| 587 | void __iomem *error_addr; |
| 588 | void __iomem *feature_addr; |
| 589 | void __iomem *nsect_addr; |
| 590 | void __iomem *lbal_addr; |
| 591 | void __iomem *lbam_addr; |
| 592 | void __iomem *lbah_addr; |
| 593 | void __iomem *device_addr; |
| 594 | void __iomem *status_addr; |
| 595 | void __iomem *command_addr; |
| 596 | void __iomem *altstatus_addr; |
| 597 | void __iomem *ctl_addr; |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 598 | #ifdef CONFIG_ATA_BMDMA |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 599 | void __iomem *bmdma_addr; |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 600 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 601 | void __iomem *scr_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | }; |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 603 | #endif /* CONFIG_ATA_SFF */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 605 | struct ata_host { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | spinlock_t lock; |
| 607 | struct device *dev; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 608 | void __iomem * const *iomap; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | unsigned int n_ports; |
Tejun Heo | 1a112d1 | 2014-07-23 09:05:27 -0400 | [diff] [blame] | 610 | unsigned int n_tags; /* nr of NCQ tags */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | void *private_data; |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 612 | struct ata_port_operations *ops; |
Alan Cox | 5444a6f | 2006-03-27 18:58:20 +0100 | [diff] [blame] | 613 | unsigned long flags; |
Tejun Heo | c0c362b | 2010-09-06 17:57:14 +0200 | [diff] [blame] | 614 | |
| 615 | struct mutex eh_mutex; |
| 616 | struct task_struct *eh_owner; |
| 617 | |
Alan | 032af1c | 2007-03-01 17:36:46 +0000 | [diff] [blame] | 618 | struct ata_port *simplex_claimed; /* channel owning the DMA */ |
Tejun Heo | f0eb62b | 2006-06-12 23:05:38 +0900 | [diff] [blame] | 619 | struct ata_port *ports[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | }; |
| 621 | |
| 622 | struct ata_queued_cmd { |
| 623 | struct ata_port *ap; |
| 624 | struct ata_device *dev; |
| 625 | |
| 626 | struct scsi_cmnd *scsicmd; |
| 627 | void (*scsidone)(struct scsi_cmnd *); |
| 628 | |
| 629 | struct ata_taskfile tf; |
| 630 | u8 cdb[ATAPI_CDB_LEN]; |
| 631 | |
| 632 | unsigned long flags; /* ATA_QCFLAG_xxx */ |
| 633 | unsigned int tag; |
| 634 | unsigned int n_elem; |
FUJITA Tomonori | 5825627 | 2009-02-27 17:35:43 +0900 | [diff] [blame] | 635 | unsigned int orig_n_elem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | |
| 637 | int dma_dir; |
| 638 | |
Mark Lord | 5a5dbd1 | 2007-03-16 10:22:26 -0400 | [diff] [blame] | 639 | unsigned int sect_size; |
Jeff Garzik | cedc9a4 | 2005-10-05 07:13:30 -0400 | [diff] [blame] | 640 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | unsigned int nbytes; |
Tejun Heo | aacda37 | 2008-03-18 17:47:43 +0900 | [diff] [blame] | 642 | unsigned int extrabytes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | unsigned int curbytes; |
| 644 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | struct scatterlist sgent; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 647 | struct scatterlist *sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | |
Richard Kennedy | b34e904 | 2010-09-10 12:19:43 +0100 | [diff] [blame] | 649 | struct scatterlist *cursg; |
| 650 | unsigned int cursg_ofs; |
| 651 | |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 652 | unsigned int err_mask; |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 653 | struct ata_taskfile result_tf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | ata_qc_cb_t complete_fn; |
| 655 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | void *private_data; |
Darrick J. Wong | 1c50dc8 | 2007-01-30 01:18:41 -0800 | [diff] [blame] | 657 | void *lldd_task; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | }; |
| 659 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 660 | struct ata_port_stats { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | unsigned long unhandled_irq; |
| 662 | unsigned long idle_irq; |
| 663 | unsigned long rw_reqbuf; |
| 664 | }; |
| 665 | |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 666 | struct ata_ering_entry { |
Tejun Heo | 3884f7b | 2007-11-27 19:28:56 +0900 | [diff] [blame] | 667 | unsigned int eflags; |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 668 | unsigned int err_mask; |
| 669 | u64 timestamp; |
| 670 | }; |
| 671 | |
| 672 | struct ata_ering { |
| 673 | int cursor; |
| 674 | struct ata_ering_entry ring[ATA_ERING_SIZE]; |
| 675 | }; |
| 676 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | struct ata_device { |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 678 | struct ata_link *link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | unsigned int devno; /* 0 or 1 */ |
Tejun Heo | 75683fe | 2007-07-05 13:31:27 +0900 | [diff] [blame] | 680 | unsigned int horkage; /* List of broken features */ |
Richard Kennedy | 6866e7b | 2008-09-22 14:47:13 -0700 | [diff] [blame] | 681 | unsigned long flags; /* ATA_DFLAG_xxx */ |
Tejun Heo | 3edebac | 2006-05-31 18:27:40 +0900 | [diff] [blame] | 682 | struct scsi_device *sdev; /* attached SCSI device */ |
Bartlomiej Zolnierkiewicz | 95514fd | 2009-11-25 18:12:48 +0100 | [diff] [blame] | 683 | void *private_data; |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 684 | #ifdef CONFIG_ATA_ACPI |
Tejun Heo | 398e078 | 2007-12-15 15:05:03 +0900 | [diff] [blame] | 685 | union acpi_object *gtf_cache; |
Tejun Heo | 110f66d | 2009-09-16 04:17:28 +0900 | [diff] [blame] | 686 | unsigned int gtf_filter; |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 687 | #endif |
Aaron Lu | afe7595 | 2013-01-15 17:20:58 +0800 | [diff] [blame] | 688 | #ifdef CONFIG_SATA_ZPODD |
| 689 | void *zpodd; |
| 690 | #endif |
Gwendal Grignou | d902747 | 2010-05-25 12:31:38 -0700 | [diff] [blame] | 691 | struct device tdev; |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 692 | /* n_sector is CLEAR_BEGIN, read comment above CLEAR_BEGIN */ |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 693 | u64 n_sectors; /* size of device, if ATA */ |
Tejun Heo | 5920dad | 2009-07-15 17:11:41 +0900 | [diff] [blame] | 694 | u64 n_native_sectors; /* native size, if ATA */ |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 695 | unsigned int class; /* ATA_DEV_xxx */ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 696 | unsigned long unpark_deadline; |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 697 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | u8 pio_mode; |
| 699 | u8 dma_mode; |
| 700 | u8 xfer_mode; |
| 701 | unsigned int xfer_shift; /* ATA_SHIFT_xxx */ |
| 702 | |
Albert Lee | 8cbd6df | 2005-10-12 15:06:27 +0800 | [diff] [blame] | 703 | unsigned int multi_count; /* sectors count for |
| 704 | READ/WRITE MULTIPLE */ |
Tejun Heo | b00eec1 | 2006-02-12 23:32:59 +0900 | [diff] [blame] | 705 | unsigned int max_sectors; /* per-device max sectors */ |
Tejun Heo | 6e7846e | 2006-02-12 23:32:58 +0900 | [diff] [blame] | 706 | unsigned int cdb_len; |
Albert Lee | 8bf62ece | 2005-05-12 15:29:42 -0400 | [diff] [blame] | 707 | |
Tejun Heo | acf356b | 2006-03-24 14:07:50 +0900 | [diff] [blame] | 708 | /* per-dev xfer mask */ |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 709 | unsigned long pio_mask; |
| 710 | unsigned long mwdma_mask; |
| 711 | unsigned long udma_mask; |
Tejun Heo | acf356b | 2006-03-24 14:07:50 +0900 | [diff] [blame] | 712 | |
Albert Lee | 8bf62ece | 2005-05-12 15:29:42 -0400 | [diff] [blame] | 713 | /* for CHS addressing */ |
| 714 | u16 cylinders; /* Number of cylinders */ |
| 715 | u16 heads; /* Number of heads */ |
| 716 | u16 sectors; /* Number of sectors per track */ |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 717 | |
Jeff Garzik | f7e9893 | 2008-04-29 17:47:34 -0400 | [diff] [blame] | 718 | union { |
| 719 | u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */ |
| 720 | u32 gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */ |
| 721 | }; |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 722 | |
Shane Huang | 803739d | 2012-12-17 23:18:59 +0800 | [diff] [blame] | 723 | /* DEVSLP Timing Variables from Identify Device Data Log */ |
| 724 | u8 devslp_timing[ATA_LOG_DEVSLP_SIZE]; |
Shane Huang | 65fe1f0 | 2012-09-07 22:40:01 +0800 | [diff] [blame] | 725 | |
Marc Carino | ed36911 | 2013-08-24 23:22:50 -0700 | [diff] [blame] | 726 | /* NCQ send and receive log subcommand support */ |
| 727 | u8 ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_SIZE]; |
| 728 | |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 729 | /* error history */ |
| 730 | int spdn_cnt; |
| 731 | /* ering is CLEAR_END, read comment above CLEAR_END */ |
| 732 | struct ata_ering ering; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | }; |
| 734 | |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 735 | /* Fields between ATA_DEVICE_CLEAR_BEGIN and ATA_DEVICE_CLEAR_END are |
| 736 | * cleared to zero on ata_dev_init(). |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 737 | */ |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 738 | #define ATA_DEVICE_CLEAR_BEGIN offsetof(struct ata_device, n_sectors) |
| 739 | #define ATA_DEVICE_CLEAR_END offsetof(struct ata_device, ering) |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 740 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 741 | struct ata_eh_info { |
| 742 | struct ata_device *dev; /* offending device */ |
| 743 | u32 serror; /* SError from LLDD */ |
| 744 | unsigned int err_mask; /* port-wide err_mask */ |
| 745 | unsigned int action; /* ATA_EH_* action mask */ |
Tejun Heo | 47005f2 | 2006-06-19 18:27:23 +0900 | [diff] [blame] | 746 | unsigned int dev_action[ATA_MAX_DEVICES]; /* dev EH action */ |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 747 | unsigned int flags; /* ATA_EHI_* flags */ |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 748 | |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 749 | unsigned int probe_mask; |
| 750 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 751 | char desc[ATA_EH_DESC_LEN]; |
| 752 | int desc_len; |
| 753 | }; |
| 754 | |
| 755 | struct ata_eh_context { |
| 756 | struct ata_eh_info i; |
| 757 | int tries[ATA_MAX_DEVICES]; |
Tejun Heo | 87fbc5a | 2008-05-20 02:17:54 +0900 | [diff] [blame] | 758 | int cmd_timeout_idx[ATA_MAX_DEVICES] |
| 759 | [ATA_EH_CMD_TIMEOUT_TABLE_SIZE]; |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 760 | unsigned int classes[ATA_MAX_DEVICES]; |
| 761 | unsigned int did_probe_mask; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 762 | unsigned int unloaded_mask; |
Tejun Heo | 00115e0 | 2007-11-27 19:28:58 +0900 | [diff] [blame] | 763 | unsigned int saved_ncq_enabled; |
| 764 | u8 saved_xfer_mode[ATA_MAX_DEVICES]; |
Tejun Heo | 0a2c0f5 | 2008-05-20 02:17:52 +0900 | [diff] [blame] | 765 | /* timestamp for the last reset attempt or success */ |
| 766 | unsigned long last_reset; |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 767 | }; |
| 768 | |
Tejun Heo | 64578a3 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 769 | struct ata_acpi_drive |
| 770 | { |
| 771 | u32 pio; |
| 772 | u32 dma; |
| 773 | } __packed; |
| 774 | |
| 775 | struct ata_acpi_gtm { |
| 776 | struct ata_acpi_drive drive[2]; |
| 777 | u32 flags; |
| 778 | } __packed; |
| 779 | |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 780 | struct ata_link { |
| 781 | struct ata_port *ap; |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 782 | int pmp; /* port multiplier port # */ |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 783 | |
Gwendal Grignou | d902747 | 2010-05-25 12:31:38 -0700 | [diff] [blame] | 784 | struct device tdev; |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 785 | unsigned int active_tag; /* active tag on this link */ |
| 786 | u32 sactive; /* active NCQ commands */ |
| 787 | |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 788 | unsigned int flags; /* ATA_LFLAG_xxx */ |
| 789 | |
Tejun Heo | d127ea7 | 2008-07-31 16:09:34 +0900 | [diff] [blame] | 790 | u32 saved_scontrol; /* SControl on probe */ |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 791 | unsigned int hw_sata_spd_limit; |
| 792 | unsigned int sata_spd_limit; |
| 793 | unsigned int sata_spd; /* current SATA PHY speed */ |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 794 | enum ata_lpm_policy lpm_policy; |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 795 | |
| 796 | /* record runtime error info, protected by host_set lock */ |
| 797 | struct ata_eh_info eh_info; |
| 798 | /* EH context */ |
| 799 | struct ata_eh_context eh_context; |
| 800 | |
| 801 | struct ata_device device[ATA_MAX_DEVICES]; |
Gabriele Mazzotta | 09c5b48 | 2015-04-25 19:52:37 +0200 | [diff] [blame] | 802 | |
| 803 | unsigned long last_lpm_change; /* when last LPM change happened */ |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 804 | }; |
Gwendal Grignou | d902747 | 2010-05-25 12:31:38 -0700 | [diff] [blame] | 805 | #define ATA_LINK_CLEAR_BEGIN offsetof(struct ata_link, active_tag) |
| 806 | #define ATA_LINK_CLEAR_END offsetof(struct ata_link, device[0]) |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 807 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | struct ata_port { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 809 | struct Scsi_Host *scsi_host; /* our co-allocated scsi host */ |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 810 | struct ata_port_operations *ops; |
Jeff Garzik | ba6a130 | 2006-06-22 23:46:10 -0400 | [diff] [blame] | 811 | spinlock_t *lock; |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 812 | /* Flags owned by the EH context. Only EH should touch these once the |
| 813 | port is active */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | unsigned long flags; /* ATA_FLAG_xxx */ |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 815 | /* Flags that change dynamically, protected by ap->lock */ |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 816 | unsigned int pflags; /* ATA_PFLAG_xxx */ |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 817 | unsigned int print_id; /* user visible unique port ID */ |
David Milburn | e628dc9 | 2013-05-14 13:48:40 -0500 | [diff] [blame] | 818 | unsigned int local_port_no; /* host local port num */ |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 819 | unsigned int port_no; /* 0 based port no. inside the host */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 821 | #ifdef CONFIG_ATA_SFF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | u8 ctl; /* cache of ATA control register */ |
| 824 | u8 last_ctl; /* Cache last written value */ |
Gwendal Grignou | ea3c645 | 2010-08-31 16:20:36 -0700 | [diff] [blame] | 825 | struct ata_link* sff_pio_task_link; /* link currently used */ |
Tejun Heo | c429137 | 2010-05-10 21:41:38 +0200 | [diff] [blame] | 826 | struct delayed_work sff_pio_task; |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 827 | #ifdef CONFIG_ATA_BMDMA |
Tejun Heo | f60d701 | 2010-05-10 21:41:41 +0200 | [diff] [blame] | 828 | struct ata_bmdma_prd *bmdma_prd; /* BMDMA SG list */ |
| 829 | dma_addr_t bmdma_prd_dma; /* and its DMA mapping */ |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 830 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 5fe7454 | 2010-05-10 21:41:37 +0200 | [diff] [blame] | 831 | #endif /* CONFIG_ATA_SFF */ |
| 832 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | unsigned int pio_mask; |
| 834 | unsigned int mwdma_mask; |
| 835 | unsigned int udma_mask; |
| 836 | unsigned int cbl; /* cable type; ATA_CBL_xxx */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | |
| 838 | struct ata_queued_cmd qcmd[ATA_MAX_QUEUE]; |
Shaohua Li | 12cb5ce | 2015-01-15 17:32:27 -0800 | [diff] [blame] | 839 | unsigned long sas_tag_allocated; /* for sas tag allocation only */ |
Tejun Heo | dedaf2b | 2006-05-15 21:03:43 +0900 | [diff] [blame] | 840 | unsigned int qc_active; |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 841 | int nr_active_links; /* #links with active qcs */ |
Shaohua Li | 12cb5ce | 2015-01-15 17:32:27 -0800 | [diff] [blame] | 842 | unsigned int sas_last_tag; /* track next tag hw expects */ |
Tejun Heo | dedaf2b | 2006-05-15 21:03:43 +0900 | [diff] [blame] | 843 | |
Tejun Heo | b1c7291 | 2008-07-31 17:02:43 +0900 | [diff] [blame] | 844 | struct ata_link link; /* host default link */ |
| 845 | struct ata_link *slave_link; /* see ata_slave_link_init() */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 847 | int nr_pmp_links; /* nr of available PMP links */ |
| 848 | struct ata_link *pmp_link; /* array of PMP links */ |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 849 | struct ata_link *excl_link; /* for PMP qc exclusion */ |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 850 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 851 | struct ata_port_stats stats; |
| 852 | struct ata_host *host; |
Brian King | 2f1f610 | 2006-03-23 17:30:15 -0600 | [diff] [blame] | 853 | struct device *dev; |
Gwendal Grignou | d902747 | 2010-05-25 12:31:38 -0700 | [diff] [blame] | 854 | struct device tdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | |
Tejun Heo | ad72cf9 | 2010-07-02 10:03:52 +0200 | [diff] [blame] | 856 | struct mutex scsi_scan_mutex; |
David Howells | 52bad64 | 2006-11-22 14:54:01 +0000 | [diff] [blame] | 857 | struct delayed_work hotplug_task; |
Jeff Garzik | 3b01b8a | 2006-06-12 00:22:04 -0400 | [diff] [blame] | 858 | struct work_struct scsi_rescan_task; |
Tejun Heo | 86e45b6 | 2006-03-05 15:29:09 +0900 | [diff] [blame] | 859 | |
Albert Lee | 14be71f | 2005-09-27 17:36:35 +0800 | [diff] [blame] | 860 | unsigned int hsm_task_state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 861 | |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 862 | u32 msg_enable; |
Tejun Heo | a72ec4c | 2006-01-23 13:09:37 +0900 | [diff] [blame] | 863 | struct list_head eh_done_q; |
Tejun Heo | c6cf9e9 | 2006-05-31 18:27:27 +0900 | [diff] [blame] | 864 | wait_queue_head_t eh_wait_q; |
Tejun Heo | a1e10f7 | 2007-08-18 13:28:49 +0900 | [diff] [blame] | 865 | int eh_tries; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 866 | struct completion park_req_pending; |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 867 | |
Tejun Heo | 500530f | 2006-07-03 16:07:27 +0900 | [diff] [blame] | 868 | pm_message_t pm_mesg; |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 869 | enum ata_lpm_policy target_lpm_policy; |
Tejun Heo | 500530f | 2006-07-03 16:07:27 +0900 | [diff] [blame] | 870 | |
Tejun Heo | 5ddf24c | 2007-07-16 14:29:41 +0900 | [diff] [blame] | 871 | struct timer_list fastdrain_timer; |
| 872 | unsigned long fastdrain_cnt; |
| 873 | |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 874 | int em_message_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | void *private_data; |
Tejun Heo | fe635c7 | 2006-05-15 20:57:35 +0900 | [diff] [blame] | 876 | |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 877 | #ifdef CONFIG_ATA_ACPI |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 878 | struct ata_acpi_gtm __acpi_init_gtm; /* use ata_acpi_init_gtm() */ |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 879 | #endif |
Tejun Heo | 84bda12 | 2009-03-02 18:53:26 +0900 | [diff] [blame] | 880 | /* owned by EH */ |
| 881 | u8 sector_buf[ATA_SECT_SIZE] ____cacheline_aligned; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | }; |
| 883 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 884 | /* The following initializer overrides a method to NULL whether one of |
| 885 | * its parent has the method defined or not. This is equivalent to |
| 886 | * ERR_PTR(-ENOENT). Unfortunately, ERR_PTR doesn't render a constant |
| 887 | * expression and thus can't be used as an initializer. |
| 888 | */ |
| 889 | #define ATA_OP_NULL (void *)(unsigned long)(-ENOENT) |
| 890 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | struct ata_port_operations { |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 892 | /* |
| 893 | * Command execution |
| 894 | */ |
| 895 | int (*qc_defer)(struct ata_queued_cmd *qc); |
| 896 | int (*check_atapi_dma)(struct ata_queued_cmd *qc); |
| 897 | void (*qc_prep)(struct ata_queued_cmd *qc); |
| 898 | unsigned int (*qc_issue)(struct ata_queued_cmd *qc); |
Tejun Heo | 22183bf | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 899 | bool (*qc_fill_rtf)(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 901 | /* |
| 902 | * Configuration and exception handling |
| 903 | */ |
| 904 | int (*cable_detect)(struct ata_port *ap); |
| 905 | unsigned long (*mode_filter)(struct ata_device *dev, unsigned long xfer_mask); |
| 906 | void (*set_piomode)(struct ata_port *ap, struct ata_device *dev); |
| 907 | void (*set_dmamode)(struct ata_port *ap, struct ata_device *dev); |
| 908 | int (*set_mode)(struct ata_link *link, struct ata_device **r_failed_dev); |
Alan Cox | 963e497 | 2008-07-24 17:16:06 +0100 | [diff] [blame] | 909 | unsigned int (*read_id)(struct ata_device *dev, struct ata_taskfile *tf, u16 *id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 910 | |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 911 | void (*dev_config)(struct ata_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 913 | void (*freeze)(struct ata_port *ap); |
| 914 | void (*thaw)(struct ata_port *ap); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 915 | ata_prereset_fn_t prereset; |
| 916 | ata_reset_fn_t softreset; |
| 917 | ata_reset_fn_t hardreset; |
| 918 | ata_postreset_fn_t postreset; |
| 919 | ata_prereset_fn_t pmp_prereset; |
| 920 | ata_reset_fn_t pmp_softreset; |
| 921 | ata_reset_fn_t pmp_hardreset; |
| 922 | ata_postreset_fn_t pmp_postreset; |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 923 | void (*error_handler)(struct ata_port *ap); |
Alan Cox | c96f173 | 2009-03-24 10:23:46 +0000 | [diff] [blame] | 924 | void (*lost_interrupt)(struct ata_port *ap); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 925 | void (*post_internal_cmd)(struct ata_queued_cmd *qc); |
Dan Williams | e4a9c37 | 2012-06-21 23:25:27 -0700 | [diff] [blame] | 926 | void (*sched_eh)(struct ata_port *ap); |
| 927 | void (*end_eh)(struct ata_port *ap); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 928 | |
| 929 | /* |
| 930 | * Optional features |
| 931 | */ |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 932 | int (*scr_read)(struct ata_link *link, unsigned int sc_reg, u32 *val); |
| 933 | int (*scr_write)(struct ata_link *link, unsigned int sc_reg, u32 val); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 934 | void (*pmp_attach)(struct ata_port *ap); |
| 935 | void (*pmp_detach)(struct ata_port *ap); |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 936 | int (*set_lpm)(struct ata_link *link, enum ata_lpm_policy policy, |
| 937 | unsigned hints); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 938 | |
| 939 | /* |
| 940 | * Start, stop, suspend and resume |
| 941 | */ |
| 942 | int (*port_suspend)(struct ata_port *ap, pm_message_t mesg); |
| 943 | int (*port_resume)(struct ata_port *ap); |
| 944 | int (*port_start)(struct ata_port *ap); |
| 945 | void (*port_stop)(struct ata_port *ap); |
| 946 | void (*host_stop)(struct ata_host *host); |
| 947 | |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 948 | #ifdef CONFIG_ATA_SFF |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 949 | /* |
| 950 | * SFF / taskfile oriented ops |
| 951 | */ |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 952 | void (*sff_dev_select)(struct ata_port *ap, unsigned int device); |
Sergei Shtylyov | 41dec29 | 2010-05-07 22:47:50 +0400 | [diff] [blame] | 953 | void (*sff_set_devctl)(struct ata_port *ap, u8 ctl); |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 954 | u8 (*sff_check_status)(struct ata_port *ap); |
| 955 | u8 (*sff_check_altstatus)(struct ata_port *ap); |
| 956 | void (*sff_tf_load)(struct ata_port *ap, const struct ata_taskfile *tf); |
| 957 | void (*sff_tf_read)(struct ata_port *ap, struct ata_taskfile *tf); |
| 958 | void (*sff_exec_command)(struct ata_port *ap, |
| 959 | const struct ata_taskfile *tf); |
| 960 | unsigned int (*sff_data_xfer)(struct ata_device *dev, |
| 961 | unsigned char *buf, unsigned int buflen, int rw); |
Sergei Shtylyov | e42a542 | 2010-05-07 22:49:02 +0400 | [diff] [blame] | 962 | void (*sff_irq_on)(struct ata_port *); |
Tejun Heo | 2794362 | 2010-01-19 10:49:19 +0900 | [diff] [blame] | 963 | bool (*sff_irq_check)(struct ata_port *); |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 964 | void (*sff_irq_clear)(struct ata_port *); |
Tejun Heo | 8244cd0 | 2010-05-10 21:41:36 +0200 | [diff] [blame] | 965 | void (*sff_drain_fifo)(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 967 | #ifdef CONFIG_ATA_BMDMA |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 968 | void (*bmdma_setup)(struct ata_queued_cmd *qc); |
| 969 | void (*bmdma_start)(struct ata_queued_cmd *qc); |
| 970 | void (*bmdma_stop)(struct ata_queued_cmd *qc); |
| 971 | u8 (*bmdma_status)(struct ata_port *ap); |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 972 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 973 | #endif /* CONFIG_ATA_SFF */ |
Tejun Heo | c19ba8a | 2006-01-24 17:05:22 +0900 | [diff] [blame] | 974 | |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 975 | ssize_t (*em_show)(struct ata_port *ap, char *buf); |
| 976 | ssize_t (*em_store)(struct ata_port *ap, const char *message, |
| 977 | size_t size); |
| 978 | ssize_t (*sw_activity_show)(struct ata_device *dev, char *buf); |
| 979 | ssize_t (*sw_activity_store)(struct ata_device *dev, |
| 980 | enum sw_activity val); |
Mark Langsdorf | 439d7a3 | 2013-05-30 15:17:30 -0500 | [diff] [blame] | 981 | ssize_t (*transmit_led_message)(struct ata_port *ap, u32 state, |
| 982 | ssize_t size); |
| 983 | |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 984 | /* |
| 985 | * Obsolete |
Tejun Heo | 9ec957f | 2006-05-15 20:57:58 +0900 | [diff] [blame] | 986 | */ |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 987 | void (*phy_reset)(struct ata_port *ap); |
| 988 | void (*eng_timeout)(struct ata_port *ap); |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 989 | |
| 990 | /* |
| 991 | * ->inherits must be the last field and all the preceding |
| 992 | * fields must be pointers. |
| 993 | */ |
| 994 | const struct ata_port_operations *inherits; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | }; |
| 996 | |
| 997 | struct ata_port_info { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 998 | unsigned long flags; |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 999 | unsigned long link_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | unsigned long pio_mask; |
| 1001 | unsigned long mwdma_mask; |
| 1002 | unsigned long udma_mask; |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1003 | struct ata_port_operations *port_ops; |
Alan Cox | e99f8b5 | 2005-11-08 14:09:44 +0000 | [diff] [blame] | 1004 | void *private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | }; |
| 1006 | |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1007 | struct ata_timing { |
| 1008 | unsigned short mode; /* ATA mode */ |
| 1009 | unsigned short setup; /* t1 */ |
| 1010 | unsigned short act8b; /* t2 for 8-bit I/O */ |
| 1011 | unsigned short rec8b; /* t2i for 8-bit I/O */ |
| 1012 | unsigned short cyc8b; /* t0 for 8-bit I/O */ |
| 1013 | unsigned short active; /* t2 or tD */ |
| 1014 | unsigned short recover; /* t2i or tK */ |
David Daney | 3ada9c1 | 2009-01-15 17:45:31 -0800 | [diff] [blame] | 1015 | unsigned short dmack_hold; /* tj */ |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1016 | unsigned short cycle; /* t0 */ |
| 1017 | unsigned short udma; /* t2CYCTYP/2 */ |
| 1018 | }; |
| 1019 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1020 | /* |
| 1021 | * Core layer - drivers/ata/libata-core.c |
| 1022 | */ |
Tejun Heo | e9c8391 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 1023 | extern const unsigned long sata_deb_timing_normal[]; |
| 1024 | extern const unsigned long sata_deb_timing_hotplug[]; |
| 1025 | extern const unsigned long sata_deb_timing_long[]; |
| 1026 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1027 | extern struct ata_port_operations ata_dummy_port_ops; |
Tejun Heo | 21b0ad4 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1028 | extern const struct ata_port_info ata_dummy_port_info; |
Tejun Heo | dd5b06c | 2006-08-10 16:59:12 +0900 | [diff] [blame] | 1029 | |
Sergei Shtylyov | dc34e7e | 2013-07-01 00:01:32 +0400 | [diff] [blame] | 1030 | /* |
| 1031 | * protocol tests |
| 1032 | */ |
| 1033 | static inline unsigned int ata_prot_flags(u8 prot) |
| 1034 | { |
| 1035 | switch (prot) { |
| 1036 | case ATA_PROT_NODATA: |
| 1037 | return 0; |
| 1038 | case ATA_PROT_PIO: |
| 1039 | return ATA_PROT_FLAG_PIO; |
| 1040 | case ATA_PROT_DMA: |
| 1041 | return ATA_PROT_FLAG_DMA; |
| 1042 | case ATA_PROT_NCQ: |
| 1043 | return ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ; |
| 1044 | case ATAPI_PROT_NODATA: |
| 1045 | return ATA_PROT_FLAG_ATAPI; |
| 1046 | case ATAPI_PROT_PIO: |
| 1047 | return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO; |
| 1048 | case ATAPI_PROT_DMA: |
| 1049 | return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA; |
| 1050 | } |
| 1051 | return 0; |
| 1052 | } |
| 1053 | |
| 1054 | static inline int ata_is_atapi(u8 prot) |
| 1055 | { |
| 1056 | return ata_prot_flags(prot) & ATA_PROT_FLAG_ATAPI; |
| 1057 | } |
| 1058 | |
| 1059 | static inline int ata_is_nodata(u8 prot) |
| 1060 | { |
| 1061 | return !(ata_prot_flags(prot) & ATA_PROT_FLAG_DATA); |
| 1062 | } |
| 1063 | |
| 1064 | static inline int ata_is_pio(u8 prot) |
| 1065 | { |
| 1066 | return ata_prot_flags(prot) & ATA_PROT_FLAG_PIO; |
| 1067 | } |
| 1068 | |
| 1069 | static inline int ata_is_dma(u8 prot) |
| 1070 | { |
| 1071 | return ata_prot_flags(prot) & ATA_PROT_FLAG_DMA; |
| 1072 | } |
| 1073 | |
| 1074 | static inline int ata_is_ncq(u8 prot) |
| 1075 | { |
| 1076 | return ata_prot_flags(prot) & ATA_PROT_FLAG_NCQ; |
| 1077 | } |
| 1078 | |
| 1079 | static inline int ata_is_data(u8 prot) |
| 1080 | { |
| 1081 | return ata_prot_flags(prot) & ATA_PROT_FLAG_DATA; |
| 1082 | } |
| 1083 | |
| 1084 | static inline int is_multi_taskfile(struct ata_taskfile *tf) |
| 1085 | { |
| 1086 | return (tf->command == ATA_CMD_READ_MULTI) || |
| 1087 | (tf->command == ATA_CMD_WRITE_MULTI) || |
| 1088 | (tf->command == ATA_CMD_READ_MULTI_EXT) || |
| 1089 | (tf->command == ATA_CMD_WRITE_MULTI_EXT) || |
| 1090 | (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT); |
| 1091 | } |
| 1092 | |
Tejun Heo | e9c8391 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 1093 | static inline const unsigned long * |
| 1094 | sata_ehc_deb_timing(struct ata_eh_context *ehc) |
| 1095 | { |
| 1096 | if (ehc->i.flags & ATA_EHI_HOTPLUGGED) |
| 1097 | return sata_deb_timing_hotplug; |
| 1098 | else |
| 1099 | return sata_deb_timing_normal; |
| 1100 | } |
Tejun Heo | d7bb4cc | 2006-05-31 18:27:46 +0900 | [diff] [blame] | 1101 | |
Tejun Heo | dd5b06c | 2006-08-10 16:59:12 +0900 | [diff] [blame] | 1102 | static inline int ata_port_is_dummy(struct ata_port *ap) |
| 1103 | { |
| 1104 | return ap->ops == &ata_dummy_port_ops; |
| 1105 | } |
| 1106 | |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1107 | extern int sata_set_spd(struct ata_link *link); |
Tejun Heo | 0aa1113 | 2008-04-07 22:47:18 +0900 | [diff] [blame] | 1108 | extern int ata_std_prereset(struct ata_link *link, unsigned long deadline); |
Tejun Heo | aa2731a | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 1109 | extern int ata_wait_after_reset(struct ata_link *link, unsigned long deadline, |
| 1110 | int (*check_ready)(struct ata_link *link)); |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1111 | extern int sata_link_debounce(struct ata_link *link, |
| 1112 | const unsigned long *params, unsigned long deadline); |
| 1113 | extern int sata_link_resume(struct ata_link *link, const unsigned long *params, |
| 1114 | unsigned long deadline); |
Tejun Heo | 1152b26 | 2010-09-01 17:50:05 +0200 | [diff] [blame] | 1115 | extern int sata_link_scr_lpm(struct ata_link *link, enum ata_lpm_policy policy, |
| 1116 | bool spm_wakeup); |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1117 | extern int sata_link_hardreset(struct ata_link *link, |
Tejun Heo | 9dadd45 | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 1118 | const unsigned long *timing, unsigned long deadline, |
| 1119 | bool *online, int (*check_ready)(struct ata_link *)); |
Tejun Heo | 57c9efd | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 1120 | extern int sata_std_hardreset(struct ata_link *link, unsigned int *class, |
| 1121 | unsigned long deadline); |
Tejun Heo | 203c75b | 2008-04-07 22:47:18 +0900 | [diff] [blame] | 1122 | extern void ata_std_postreset(struct ata_link *link, unsigned int *classes); |
Jeff Garzik | 2855568 | 2007-10-11 17:12:35 -0400 | [diff] [blame] | 1123 | |
Tejun Heo | f318719 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1124 | extern struct ata_host *ata_host_alloc(struct device *dev, int max_ports); |
Tejun Heo | f5cda25 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1125 | extern struct ata_host *ata_host_alloc_pinfo(struct device *dev, |
| 1126 | const struct ata_port_info * const * ppi, int n_ports); |
Tejun Heo | b1c7291 | 2008-07-31 17:02:43 +0900 | [diff] [blame] | 1127 | extern int ata_slave_link_init(struct ata_port *ap); |
Tejun Heo | ecef725 | 2007-04-17 23:44:06 +0900 | [diff] [blame] | 1128 | extern int ata_host_start(struct ata_host *host); |
Tejun Heo | f318719 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1129 | extern int ata_host_register(struct ata_host *host, |
| 1130 | struct scsi_host_template *sht); |
Tejun Heo | f5cda25 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1131 | extern int ata_host_activate(struct ata_host *host, int irq, |
| 1132 | irq_handler_t irq_handler, unsigned long irq_flags, |
| 1133 | struct scsi_host_template *sht); |
Tejun Heo | 0529c15 | 2007-01-20 16:00:26 +0900 | [diff] [blame] | 1134 | extern void ata_host_detach(struct ata_host *host); |
Dan Williams | 8d8e7d13 | 2012-07-09 21:06:08 -0700 | [diff] [blame] | 1135 | extern void ata_host_init(struct ata_host *, struct device *, struct ata_port_operations *); |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 1136 | extern int ata_scsi_detect(struct scsi_host_template *sht); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1137 | extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg); |
Jeff Garzik | f281233 | 2010-11-16 02:10:29 -0500 | [diff] [blame] | 1138 | extern int ata_scsi_queuecmd(struct Scsi_Host *h, struct scsi_cmnd *cmd); |
Jeff Garzik | 94be9a5 | 2009-01-16 10:17:09 -0500 | [diff] [blame] | 1139 | extern int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *dev, |
| 1140 | int cmd, void __user *arg); |
Brian King | 8028916 | 2006-08-07 14:27:31 -0500 | [diff] [blame] | 1141 | extern void ata_sas_port_destroy(struct ata_port *); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 1142 | extern struct ata_port *ata_sas_port_alloc(struct ata_host *, |
Brian King | 8028916 | 2006-08-07 14:27:31 -0500 | [diff] [blame] | 1143 | struct ata_port_info *, struct Scsi_Host *); |
Dan Williams | b202445 | 2012-03-21 21:09:07 -0700 | [diff] [blame] | 1144 | extern void ata_sas_async_probe(struct ata_port *ap); |
| 1145 | extern int ata_sas_sync_probe(struct ata_port *ap); |
Brian King | 8028916 | 2006-08-07 14:27:31 -0500 | [diff] [blame] | 1146 | extern int ata_sas_port_init(struct ata_port *); |
| 1147 | extern int ata_sas_port_start(struct ata_port *ap); |
| 1148 | extern void ata_sas_port_stop(struct ata_port *ap); |
| 1149 | extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *); |
Jeff Garzik | b27dcfb | 2010-11-17 22:56:48 -0500 | [diff] [blame] | 1150 | extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap); |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1151 | extern int sata_scr_valid(struct ata_link *link); |
| 1152 | extern int sata_scr_read(struct ata_link *link, int reg, u32 *val); |
| 1153 | extern int sata_scr_write(struct ata_link *link, int reg, u32 val); |
| 1154 | extern int sata_scr_write_flush(struct ata_link *link, int reg, u32 val); |
Tejun Heo | b5b3fa3 | 2008-07-31 17:02:42 +0900 | [diff] [blame] | 1155 | extern bool ata_link_online(struct ata_link *link); |
| 1156 | extern bool ata_link_offline(struct ata_link *link); |
Tejun Heo | 6ffa01d | 2007-03-02 17:32:47 +0900 | [diff] [blame] | 1157 | #ifdef CONFIG_PM |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 1158 | extern int ata_host_suspend(struct ata_host *host, pm_message_t mesg); |
| 1159 | extern void ata_host_resume(struct ata_host *host); |
Dan Williams | bc6e7c4 | 2014-03-14 13:52:48 -0700 | [diff] [blame] | 1160 | extern void ata_sas_port_suspend(struct ata_port *ap); |
| 1161 | extern void ata_sas_port_resume(struct ata_port *ap); |
Dan Williams | 2fcbdcb | 2012-06-21 23:41:46 -0700 | [diff] [blame] | 1162 | #else |
Dan Williams | bc6e7c4 | 2014-03-14 13:52:48 -0700 | [diff] [blame] | 1163 | static inline void ata_sas_port_suspend(struct ata_port *ap) |
Dan Williams | 2fcbdcb | 2012-06-21 23:41:46 -0700 | [diff] [blame] | 1164 | { |
Dan Williams | 2fcbdcb | 2012-06-21 23:41:46 -0700 | [diff] [blame] | 1165 | } |
Randy Dunlap | a5a6569 | 2014-03-19 10:46:25 -0700 | [diff] [blame] | 1166 | static inline void ata_sas_port_resume(struct ata_port *ap) |
| 1167 | { |
| 1168 | } |
Tejun Heo | 6ffa01d | 2007-03-02 17:32:47 +0900 | [diff] [blame] | 1169 | #endif |
Jeff Garzik | 67846b3 | 2005-10-05 02:58:32 -0400 | [diff] [blame] | 1170 | extern int ata_ratelimit(void); |
Tejun Heo | 97750ce | 2010-09-06 17:56:29 +0200 | [diff] [blame] | 1171 | extern void ata_msleep(struct ata_port *ap, unsigned int msecs); |
| 1172 | extern u32 ata_wait_register(struct ata_port *ap, void __iomem *reg, u32 mask, |
| 1173 | u32 val, unsigned long interval, unsigned long timeout); |
Tejun Heo | 436d34b | 2008-04-02 17:28:46 +0900 | [diff] [blame] | 1174 | extern int atapi_cmd_type(u8 opcode); |
Tejun Heo | 9977126 | 2007-07-16 14:29:38 +0900 | [diff] [blame] | 1175 | extern void ata_tf_to_fis(const struct ata_taskfile *tf, |
| 1176 | u8 pmp, int is_cmd, u8 *fis); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 1177 | extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf); |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 1178 | extern unsigned long ata_pack_xfermask(unsigned long pio_mask, |
| 1179 | unsigned long mwdma_mask, unsigned long udma_mask); |
| 1180 | extern void ata_unpack_xfermask(unsigned long xfer_mask, |
| 1181 | unsigned long *pio_mask, unsigned long *mwdma_mask, |
| 1182 | unsigned long *udma_mask); |
| 1183 | extern u8 ata_xfer_mask2mode(unsigned long xfer_mask); |
| 1184 | extern unsigned long ata_xfer_mode2mask(u8 xfer_mode); |
| 1185 | extern int ata_xfer_mode2shift(unsigned long xfer_mode); |
| 1186 | extern const char *ata_mode_string(unsigned long xfer_mask); |
| 1187 | extern unsigned long ata_id_xfermask(const u16 *id); |
Tejun Heo | 31cc23b | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1188 | extern int ata_std_qc_defer(struct ata_queued_cmd *qc); |
Brian King | e46834c | 2006-03-17 17:04:03 -0600 | [diff] [blame] | 1189 | extern void ata_noop_qc_prep(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1190 | extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg, |
| 1191 | unsigned int n_elem); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 1192 | extern unsigned int ata_dev_classify(const struct ata_taskfile *tf); |
Alan | 10305f0 | 2007-02-20 18:01:59 +0000 | [diff] [blame] | 1193 | extern void ata_dev_disable(struct ata_device *adev); |
Tejun Heo | 6a62a04 | 2006-02-13 10:02:46 +0900 | [diff] [blame] | 1194 | extern void ata_id_string(const u16 *id, unsigned char *s, |
| 1195 | unsigned int ofs, unsigned int len); |
| 1196 | extern void ata_id_c_string(const u16 *id, unsigned char *s, |
| 1197 | unsigned int ofs, unsigned int len); |
Alan Cox | 963e497 | 2008-07-24 17:16:06 +0100 | [diff] [blame] | 1198 | extern unsigned int ata_do_dev_read_id(struct ata_device *dev, |
| 1199 | struct ata_taskfile *tf, u16 *id); |
Tejun Heo | f686bcb | 2006-05-15 20:58:05 +0900 | [diff] [blame] | 1200 | extern void ata_qc_complete(struct ata_queued_cmd *qc); |
Tejun Heo | 79f97da | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 1201 | extern int ata_qc_complete_multiple(struct ata_port *ap, u32 qc_active); |
Jeff Garzik | b27dcfb | 2010-11-17 22:56:48 -0500 | [diff] [blame] | 1202 | extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1203 | extern int ata_std_bios_param(struct scsi_device *sdev, |
| 1204 | struct block_device *bdev, |
| 1205 | sector_t capacity, int geom[]); |
Tejun Heo | d8d9129 | 2010-05-15 20:09:34 +0200 | [diff] [blame] | 1206 | extern void ata_scsi_unlock_native_capacity(struct scsi_device *sdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | extern int ata_scsi_slave_config(struct scsi_device *sdev); |
Tejun Heo | 83c47bc | 2006-05-31 18:28:07 +0900 | [diff] [blame] | 1208 | extern void ata_scsi_slave_destroy(struct scsi_device *sdev); |
Tejun Heo | a6e6ce8 | 2006-05-15 21:03:48 +0900 | [diff] [blame] | 1209 | extern int ata_scsi_change_queue_depth(struct scsi_device *sdev, |
Christoph Hellwig | db5ed4d | 2014-11-13 15:08:42 +0100 | [diff] [blame] | 1210 | int queue_depth); |
Dan Williams | f6e6703 | 2011-09-20 15:10:33 -0700 | [diff] [blame] | 1211 | extern int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, |
Christoph Hellwig | db5ed4d | 2014-11-13 15:08:42 +0100 | [diff] [blame] | 1212 | int queue_depth); |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1213 | extern struct ata_device *ata_dev_pair(struct ata_device *adev); |
Tejun Heo | 0260731 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1214 | extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); |
James Bottomley | 0e0b494c | 2011-01-23 09:42:50 -0600 | [diff] [blame] | 1215 | extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap); |
| 1216 | extern void ata_scsi_cmd_error_handler(struct Scsi_Host *host, struct ata_port *ap, struct list_head *eh_q); |
Gabriele Mazzotta | 8393b81 | 2015-04-25 19:52:36 +0200 | [diff] [blame] | 1217 | extern bool sata_lpm_ignore_phy_events(struct ata_link *link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1218 | |
Alan Cox | be0d18d | 2007-03-06 02:37:56 -0800 | [diff] [blame] | 1219 | extern int ata_cable_40wire(struct ata_port *ap); |
| 1220 | extern int ata_cable_80wire(struct ata_port *ap); |
| 1221 | extern int ata_cable_sata(struct ata_port *ap); |
Tejun Heo | c88f90c | 2007-11-27 19:43:48 +0900 | [diff] [blame] | 1222 | extern int ata_cable_ignore(struct ata_port *ap); |
Alan Cox | be0d18d | 2007-03-06 02:37:56 -0800 | [diff] [blame] | 1223 | extern int ata_cable_unknown(struct ata_port *ap); |
| 1224 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1225 | /* Timing helpers */ |
Alan Cox | 1bc4ccf | 2006-01-09 17:18:14 +0000 | [diff] [blame] | 1226 | extern unsigned int ata_pio_need_iordy(const struct ata_device *); |
Tejun Heo | 6357357 | 2007-11-27 19:43:39 +0900 | [diff] [blame] | 1227 | extern const struct ata_timing *ata_timing_find_mode(u8 xfer_mode); |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1228 | extern int ata_timing_compute(struct ata_device *, unsigned short, |
| 1229 | struct ata_timing *, int, int); |
| 1230 | extern void ata_timing_merge(const struct ata_timing *, |
| 1231 | const struct ata_timing *, struct ata_timing *, |
| 1232 | unsigned int); |
Tejun Heo | a0f79b9 | 2007-12-18 16:33:05 +0900 | [diff] [blame] | 1233 | extern u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle); |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1234 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1235 | /* PCI */ |
| 1236 | #ifdef CONFIG_PCI |
| 1237 | struct pci_dev; |
| 1238 | |
| 1239 | struct pci_bits { |
| 1240 | unsigned int reg; /* PCI config register to read */ |
| 1241 | unsigned int width; /* 1 (8 bit), 2 (16 bit), 4 (32 bit) */ |
| 1242 | unsigned long mask; |
| 1243 | unsigned long val; |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1244 | }; |
| 1245 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1246 | extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits); |
| 1247 | extern void ata_pci_remove_one(struct pci_dev *pdev); |
| 1248 | |
| 1249 | #ifdef CONFIG_PM |
| 1250 | extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg); |
| 1251 | extern int __must_check ata_pci_device_do_resume(struct pci_dev *pdev); |
| 1252 | extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); |
| 1253 | extern int ata_pci_device_resume(struct pci_dev *pdev); |
| 1254 | #endif /* CONFIG_PM */ |
| 1255 | #endif /* CONFIG_PCI */ |
| 1256 | |
Brian Norris | b7db04d | 2012-11-02 12:29:32 -0700 | [diff] [blame] | 1257 | struct platform_device; |
| 1258 | |
| 1259 | extern int ata_platform_remove_one(struct platform_device *pdev); |
| 1260 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1261 | /* |
| 1262 | * ACPI - drivers/ata/libata-acpi.c |
| 1263 | */ |
Alan Cox | e1ddb4b | 2007-08-16 02:33:36 -0400 | [diff] [blame] | 1264 | #ifdef CONFIG_ATA_ACPI |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 1265 | static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) |
| 1266 | { |
| 1267 | if (ap->pflags & ATA_PFLAG_INIT_GTM_VALID) |
| 1268 | return &ap->__acpi_init_gtm; |
| 1269 | return NULL; |
| 1270 | } |
Tejun Heo | 0d02f0b | 2007-12-15 15:04:57 +0900 | [diff] [blame] | 1271 | int ata_acpi_stm(struct ata_port *ap, const struct ata_acpi_gtm *stm); |
| 1272 | int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *stm); |
Tejun Heo | 7c77fa4 | 2007-12-18 16:33:03 +0900 | [diff] [blame] | 1273 | unsigned long ata_acpi_gtm_xfermask(struct ata_device *dev, |
| 1274 | const struct ata_acpi_gtm *gtm); |
Tejun Heo | 021ee9a | 2007-12-18 16:33:06 +0900 | [diff] [blame] | 1275 | int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm); |
Alan Cox | e1ddb4b | 2007-08-16 02:33:36 -0400 | [diff] [blame] | 1276 | #else |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 1277 | static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) |
| 1278 | { |
| 1279 | return NULL; |
| 1280 | } |
Tejun Heo | 7c77fa4 | 2007-12-18 16:33:03 +0900 | [diff] [blame] | 1281 | |
| 1282 | static inline int ata_acpi_stm(const struct ata_port *ap, |
| 1283 | struct ata_acpi_gtm *stm) |
| 1284 | { |
| 1285 | return -ENOSYS; |
| 1286 | } |
| 1287 | |
| 1288 | static inline int ata_acpi_gtm(const struct ata_port *ap, |
| 1289 | struct ata_acpi_gtm *stm) |
| 1290 | { |
| 1291 | return -ENOSYS; |
| 1292 | } |
| 1293 | |
| 1294 | static inline unsigned int ata_acpi_gtm_xfermask(struct ata_device *dev, |
| 1295 | const struct ata_acpi_gtm *gtm) |
| 1296 | { |
| 1297 | return 0; |
| 1298 | } |
Tejun Heo | 021ee9a | 2007-12-18 16:33:06 +0900 | [diff] [blame] | 1299 | |
| 1300 | static inline int ata_acpi_cbl_80wire(struct ata_port *ap, |
| 1301 | const struct ata_acpi_gtm *gtm) |
| 1302 | { |
| 1303 | return 0; |
| 1304 | } |
Alan Cox | e1ddb4b | 2007-08-16 02:33:36 -0400 | [diff] [blame] | 1305 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1306 | |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1307 | /* |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1308 | * EH - drivers/ata/libata-eh.c |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1309 | */ |
Tejun Heo | 7b70fc0 | 2006-05-15 20:58:07 +0900 | [diff] [blame] | 1310 | extern void ata_port_schedule_eh(struct ata_port *ap); |
Dan Williams | 81c757b | 2011-12-02 16:07:01 -0800 | [diff] [blame] | 1311 | extern void ata_port_wait_eh(struct ata_port *ap); |
Tejun Heo | dbd8261 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1312 | extern int ata_link_abort(struct ata_link *link); |
Tejun Heo | 7b70fc0 | 2006-05-15 20:58:07 +0900 | [diff] [blame] | 1313 | extern int ata_port_abort(struct ata_port *ap); |
Tejun Heo | e318049 | 2006-05-15 20:58:09 +0900 | [diff] [blame] | 1314 | extern int ata_port_freeze(struct ata_port *ap); |
Tejun Heo | 7d77b24 | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 1315 | extern int sata_async_notification(struct ata_port *ap); |
Tejun Heo | e318049 | 2006-05-15 20:58:09 +0900 | [diff] [blame] | 1316 | |
| 1317 | extern void ata_eh_freeze_port(struct ata_port *ap); |
| 1318 | extern void ata_eh_thaw_port(struct ata_port *ap); |
Tejun Heo | 7b70fc0 | 2006-05-15 20:58:07 +0900 | [diff] [blame] | 1319 | |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1320 | extern void ata_eh_qc_complete(struct ata_queued_cmd *qc); |
| 1321 | extern void ata_eh_qc_retry(struct ata_queued_cmd *qc); |
Mark Lord | 10acf3b | 2008-05-02 02:14:53 -0400 | [diff] [blame] | 1322 | extern void ata_eh_analyze_ncq_error(struct ata_link *link); |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1323 | |
Tejun Heo | f5914a4 | 2006-05-31 18:27:48 +0900 | [diff] [blame] | 1324 | extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset, |
| 1325 | ata_reset_fn_t softreset, ata_reset_fn_t hardreset, |
| 1326 | ata_postreset_fn_t postreset); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 1327 | extern void ata_std_error_handler(struct ata_port *ap); |
Dan Williams | e4a9c37 | 2012-06-21 23:25:27 -0700 | [diff] [blame] | 1328 | extern void ata_std_sched_eh(struct ata_port *ap); |
| 1329 | extern void ata_std_end_eh(struct ata_port *ap); |
Kristen Carlson Accardi | 8a745f1 | 2011-03-04 10:24:11 -0800 | [diff] [blame] | 1330 | extern int ata_link_nr_enabled(struct ata_link *link); |
Tejun Heo | 022bdb0 | 2006-05-15 20:58:22 +0900 | [diff] [blame] | 1331 | |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1332 | /* |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1333 | * Base operations to inherit from and initializers for sht |
| 1334 | * |
| 1335 | * Operations |
| 1336 | * |
| 1337 | * base : Common to all libata drivers. |
| 1338 | * sata : SATA controllers w/ native interface. |
| 1339 | * pmp : SATA controllers w/ PMP support. |
| 1340 | * sff : SFF ATA controllers w/o BMDMA support. |
| 1341 | * bmdma : SFF ATA controllers w/ BMDMA support. |
| 1342 | * |
| 1343 | * sht initializers |
| 1344 | * |
| 1345 | * BASE : Common to all libata drivers. The user must set |
| 1346 | * sg_tablesize and dma_boundary. |
| 1347 | * PIO : SFF ATA controllers w/ only PIO support. |
| 1348 | * BMDMA : SFF ATA controllers w/ BMDMA support. sg_tablesize and |
| 1349 | * dma_boundary are set to BMDMA limits. |
| 1350 | * NCQ : SATA controllers supporting NCQ. The user must set |
| 1351 | * sg_tablesize, dma_boundary and can_queue. |
| 1352 | */ |
| 1353 | extern const struct ata_port_operations ata_base_port_ops; |
| 1354 | extern const struct ata_port_operations sata_port_ops; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 1355 | extern struct device_attribute *ata_common_sdev_attrs[]; |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1356 | |
Akinobu Mita | 018d5ef | 2015-01-29 08:30:29 +0900 | [diff] [blame] | 1357 | /* |
| 1358 | * All sht initializers (BASE, PIO, BMDMA, NCQ) must be instantiated |
| 1359 | * by the edge drivers. Because the 'module' field of sht must be the |
| 1360 | * edge driver's module reference, otherwise the driver can be unloaded |
| 1361 | * even if the scsi_device is being accessed. |
| 1362 | */ |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1363 | #define ATA_BASE_SHT(drv_name) \ |
| 1364 | .module = THIS_MODULE, \ |
| 1365 | .name = drv_name, \ |
| 1366 | .ioctl = ata_scsi_ioctl, \ |
| 1367 | .queuecommand = ata_scsi_queuecmd, \ |
| 1368 | .can_queue = ATA_DEF_QUEUE, \ |
Shaohua Li | 12cb5ce | 2015-01-15 17:32:27 -0800 | [diff] [blame] | 1369 | .tag_alloc_policy = BLK_TAG_ALLOC_RR, \ |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1370 | .this_id = ATA_SHT_THIS_ID, \ |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1371 | .emulated = ATA_SHT_EMULATED, \ |
| 1372 | .use_clustering = ATA_SHT_USE_CLUSTERING, \ |
| 1373 | .proc_name = drv_name, \ |
| 1374 | .slave_configure = ata_scsi_slave_config, \ |
| 1375 | .slave_destroy = ata_scsi_slave_destroy, \ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 1376 | .bios_param = ata_std_bios_param, \ |
Tejun Heo | d8d9129 | 2010-05-15 20:09:34 +0200 | [diff] [blame] | 1377 | .unlock_native_capacity = ata_scsi_unlock_native_capacity, \ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 1378 | .sdev_attrs = ata_common_sdev_attrs |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1379 | |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1380 | #define ATA_NCQ_SHT(drv_name) \ |
| 1381 | ATA_BASE_SHT(drv_name), \ |
| 1382 | .change_queue_depth = ata_scsi_change_queue_depth |
| 1383 | |
| 1384 | /* |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1385 | * PMP helpers |
| 1386 | */ |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1387 | #ifdef CONFIG_SATA_PMP |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1388 | static inline bool sata_pmp_supported(struct ata_port *ap) |
| 1389 | { |
| 1390 | return ap->flags & ATA_FLAG_PMP; |
| 1391 | } |
| 1392 | |
| 1393 | static inline bool sata_pmp_attached(struct ata_port *ap) |
| 1394 | { |
| 1395 | return ap->nr_pmp_links != 0; |
| 1396 | } |
| 1397 | |
| 1398 | static inline int ata_is_host_link(const struct ata_link *link) |
| 1399 | { |
Tejun Heo | b1c7291 | 2008-07-31 17:02:43 +0900 | [diff] [blame] | 1400 | return link == &link->ap->link || link == link->ap->slave_link; |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1401 | } |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1402 | #else /* CONFIG_SATA_PMP */ |
| 1403 | static inline bool sata_pmp_supported(struct ata_port *ap) |
| 1404 | { |
| 1405 | return false; |
| 1406 | } |
| 1407 | |
| 1408 | static inline bool sata_pmp_attached(struct ata_port *ap) |
| 1409 | { |
| 1410 | return false; |
| 1411 | } |
| 1412 | |
| 1413 | static inline int ata_is_host_link(const struct ata_link *link) |
| 1414 | { |
| 1415 | return 1; |
| 1416 | } |
| 1417 | #endif /* CONFIG_SATA_PMP */ |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1418 | |
| 1419 | static inline int sata_srst_pmp(struct ata_link *link) |
| 1420 | { |
| 1421 | if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) |
| 1422 | return SATA_PMP_CTRL_PORT; |
| 1423 | return link->pmp; |
| 1424 | } |
| 1425 | |
| 1426 | /* |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1427 | * printk helpers |
| 1428 | */ |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 1429 | __printf(3, 4) |
Joe Perches | d7bead1 | 2014-09-22 09:52:18 -0700 | [diff] [blame] | 1430 | void ata_port_printk(const struct ata_port *ap, const char *level, |
| 1431 | const char *fmt, ...); |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 1432 | __printf(3, 4) |
Joe Perches | d7bead1 | 2014-09-22 09:52:18 -0700 | [diff] [blame] | 1433 | void ata_link_printk(const struct ata_link *link, const char *level, |
| 1434 | const char *fmt, ...); |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 1435 | __printf(3, 4) |
Joe Perches | d7bead1 | 2014-09-22 09:52:18 -0700 | [diff] [blame] | 1436 | void ata_dev_printk(const struct ata_device *dev, const char *level, |
| 1437 | const char *fmt, ...); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1438 | |
Joe Perches | a9a79df | 2011-04-15 15:51:59 -0700 | [diff] [blame] | 1439 | #define ata_port_err(ap, fmt, ...) \ |
| 1440 | ata_port_printk(ap, KERN_ERR, fmt, ##__VA_ARGS__) |
| 1441 | #define ata_port_warn(ap, fmt, ...) \ |
| 1442 | ata_port_printk(ap, KERN_WARNING, fmt, ##__VA_ARGS__) |
| 1443 | #define ata_port_notice(ap, fmt, ...) \ |
| 1444 | ata_port_printk(ap, KERN_NOTICE, fmt, ##__VA_ARGS__) |
| 1445 | #define ata_port_info(ap, fmt, ...) \ |
| 1446 | ata_port_printk(ap, KERN_INFO, fmt, ##__VA_ARGS__) |
| 1447 | #define ata_port_dbg(ap, fmt, ...) \ |
| 1448 | ata_port_printk(ap, KERN_DEBUG, fmt, ##__VA_ARGS__) |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 1449 | |
Joe Perches | a9a79df | 2011-04-15 15:51:59 -0700 | [diff] [blame] | 1450 | #define ata_link_err(link, fmt, ...) \ |
| 1451 | ata_link_printk(link, KERN_ERR, fmt, ##__VA_ARGS__) |
| 1452 | #define ata_link_warn(link, fmt, ...) \ |
| 1453 | ata_link_printk(link, KERN_WARNING, fmt, ##__VA_ARGS__) |
| 1454 | #define ata_link_notice(link, fmt, ...) \ |
| 1455 | ata_link_printk(link, KERN_NOTICE, fmt, ##__VA_ARGS__) |
| 1456 | #define ata_link_info(link, fmt, ...) \ |
| 1457 | ata_link_printk(link, KERN_INFO, fmt, ##__VA_ARGS__) |
| 1458 | #define ata_link_dbg(link, fmt, ...) \ |
| 1459 | ata_link_printk(link, KERN_DEBUG, fmt, ##__VA_ARGS__) |
| 1460 | |
| 1461 | #define ata_dev_err(dev, fmt, ...) \ |
| 1462 | ata_dev_printk(dev, KERN_ERR, fmt, ##__VA_ARGS__) |
| 1463 | #define ata_dev_warn(dev, fmt, ...) \ |
| 1464 | ata_dev_printk(dev, KERN_WARNING, fmt, ##__VA_ARGS__) |
| 1465 | #define ata_dev_notice(dev, fmt, ...) \ |
| 1466 | ata_dev_printk(dev, KERN_NOTICE, fmt, ##__VA_ARGS__) |
| 1467 | #define ata_dev_info(dev, fmt, ...) \ |
| 1468 | ata_dev_printk(dev, KERN_INFO, fmt, ##__VA_ARGS__) |
| 1469 | #define ata_dev_dbg(dev, fmt, ...) \ |
| 1470 | ata_dev_printk(dev, KERN_DEBUG, fmt, ##__VA_ARGS__) |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1471 | |
Joe Perches | 06296a1 | 2011-04-15 15:52:00 -0700 | [diff] [blame] | 1472 | void ata_print_version(const struct device *dev, const char *version); |
| 1473 | |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1474 | /* |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 1475 | * ata_eh_info helpers |
| 1476 | */ |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 1477 | extern __printf(2, 3) |
| 1478 | void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); |
| 1479 | extern __printf(2, 3) |
| 1480 | void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); |
Tejun Heo | b64bbc3 | 2007-07-16 14:29:39 +0900 | [diff] [blame] | 1481 | extern void ata_ehi_clear_desc(struct ata_eh_info *ehi); |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 1482 | |
Tejun Heo | c0b6c03 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 1483 | static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi) |
| 1484 | { |
Tejun Heo | b558edd | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 1485 | ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1; |
Tejun Heo | f8f1e1c | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 1486 | ehi->flags |= ATA_EHI_HOTPLUGGED; |
Tejun Heo | b558edd | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 1487 | ehi->action |= ATA_EH_RESET | ATA_EH_ENABLE_LINK; |
Tejun Heo | c0b6c03 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 1488 | ehi->err_mask |= AC_ERR_ATA_BUS; |
| 1489 | } |
| 1490 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 1491 | /* |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 1492 | * port description helpers |
| 1493 | */ |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 1494 | extern __printf(2, 3) |
| 1495 | void ata_port_desc(struct ata_port *ap, const char *fmt, ...); |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 1496 | #ifdef CONFIG_PCI |
| 1497 | extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset, |
| 1498 | const char *name); |
| 1499 | #endif |
| 1500 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | static inline unsigned int ata_tag_valid(unsigned int tag) |
| 1502 | { |
| 1503 | return (tag < ATA_MAX_QUEUE) ? 1 : 0; |
| 1504 | } |
| 1505 | |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 1506 | static inline unsigned int ata_tag_internal(unsigned int tag) |
| 1507 | { |
Yoichi Yuasa | 83c063d | 2008-02-28 21:43:13 +0900 | [diff] [blame] | 1508 | return tag == ATA_TAG_INTERNAL; |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 1509 | } |
| 1510 | |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1511 | /* |
| 1512 | * device helpers |
| 1513 | */ |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1514 | static inline unsigned int ata_class_enabled(unsigned int class) |
Tejun Heo | 597afd2 | 2006-03-01 01:25:38 +0900 | [diff] [blame] | 1515 | { |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1516 | return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI || |
Hannes Reinecke | 9162c65 | 2014-11-05 13:08:21 +0100 | [diff] [blame] | 1517 | class == ATA_DEV_PMP || class == ATA_DEV_SEMB || |
| 1518 | class == ATA_DEV_ZAC; |
Tejun Heo | 597afd2 | 2006-03-01 01:25:38 +0900 | [diff] [blame] | 1519 | } |
| 1520 | |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1521 | static inline unsigned int ata_class_disabled(unsigned int class) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1522 | { |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1523 | return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP || |
| 1524 | class == ATA_DEV_PMP_UNSUP || class == ATA_DEV_SEMB_UNSUP; |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1525 | } |
| 1526 | |
Tejun Heo | 002c805 | 2006-04-02 17:54:46 +0900 | [diff] [blame] | 1527 | static inline unsigned int ata_class_absent(unsigned int class) |
| 1528 | { |
| 1529 | return !ata_class_enabled(class) && !ata_class_disabled(class); |
| 1530 | } |
| 1531 | |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1532 | static inline unsigned int ata_dev_enabled(const struct ata_device *dev) |
| 1533 | { |
| 1534 | return ata_class_enabled(dev->class); |
| 1535 | } |
| 1536 | |
| 1537 | static inline unsigned int ata_dev_disabled(const struct ata_device *dev) |
| 1538 | { |
| 1539 | return ata_class_disabled(dev->class); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1540 | } |
| 1541 | |
Tejun Heo | 002c805 | 2006-04-02 17:54:46 +0900 | [diff] [blame] | 1542 | static inline unsigned int ata_dev_absent(const struct ata_device *dev) |
| 1543 | { |
| 1544 | return ata_class_absent(dev->class); |
| 1545 | } |
| 1546 | |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1547 | /* |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1548 | * link helpers |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1549 | */ |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1550 | static inline int ata_link_max_devices(const struct ata_link *link) |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1551 | { |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1552 | if (ata_is_host_link(link) && link->ap->flags & ATA_FLAG_SLAVE_POSS) |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1553 | return 2; |
| 1554 | return 1; |
| 1555 | } |
| 1556 | |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1557 | static inline int ata_link_active(struct ata_link *link) |
| 1558 | { |
| 1559 | return ata_tag_valid(link->active_tag) || link->sactive; |
| 1560 | } |
| 1561 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1562 | /* |
| 1563 | * Iterators |
| 1564 | * |
| 1565 | * ATA_LITER_* constants are used to select link iteration mode and |
| 1566 | * ATA_DITER_* device iteration mode. |
| 1567 | * |
| 1568 | * For a custom iteration directly using ata_{link|dev}_next(), if |
| 1569 | * @link or @dev, respectively, is NULL, the first element is |
| 1570 | * returned. @dev and @link can be any valid device or link and the |
| 1571 | * next element according to the iteration mode will be returned. |
| 1572 | * After the last element, NULL is returned. |
| 1573 | */ |
| 1574 | enum ata_link_iter_mode { |
| 1575 | ATA_LITER_EDGE, /* if present, PMP links only; otherwise, |
| 1576 | * host link. no slave link */ |
| 1577 | ATA_LITER_HOST_FIRST, /* host link followed by PMP or slave links */ |
| 1578 | ATA_LITER_PMP_FIRST, /* PMP links followed by host link, |
| 1579 | * slave link still comes after host link */ |
| 1580 | }; |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1581 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1582 | enum ata_dev_iter_mode { |
| 1583 | ATA_DITER_ENABLED, |
| 1584 | ATA_DITER_ENABLED_REVERSE, |
| 1585 | ATA_DITER_ALL, |
| 1586 | ATA_DITER_ALL_REVERSE, |
| 1587 | }; |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1588 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1589 | extern struct ata_link *ata_link_next(struct ata_link *link, |
| 1590 | struct ata_port *ap, |
| 1591 | enum ata_link_iter_mode mode); |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1592 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1593 | extern struct ata_device *ata_dev_next(struct ata_device *dev, |
| 1594 | struct ata_link *link, |
| 1595 | enum ata_dev_iter_mode mode); |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1596 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1597 | /* |
| 1598 | * Shortcut notation for iterations |
| 1599 | * |
| 1600 | * ata_for_each_link() iterates over each link of @ap according to |
| 1601 | * @mode. @link points to the current link in the loop. @link is |
| 1602 | * NULL after loop termination. ata_for_each_dev() works the same way |
| 1603 | * except that it iterates over each device of @link. |
| 1604 | * |
| 1605 | * Note that the mode prefixes ATA_{L|D}ITER_ shouldn't need to be |
| 1606 | * specified when using the following shorthand notations. Only the |
| 1607 | * mode itself (EDGE, HOST_FIRST, ENABLED, etc...) should be |
| 1608 | * specified. This not only increases brevity but also makes it |
| 1609 | * impossible to use ATA_LITER_* for device iteration or vice-versa. |
| 1610 | */ |
| 1611 | #define ata_for_each_link(link, ap, mode) \ |
| 1612 | for ((link) = ata_link_next(NULL, (ap), ATA_LITER_##mode); (link); \ |
| 1613 | (link) = ata_link_next((link), (ap), ATA_LITER_##mode)) |
| 1614 | |
| 1615 | #define ata_for_each_dev(dev, link, mode) \ |
| 1616 | for ((dev) = ata_dev_next(NULL, (link), ATA_DITER_##mode); (dev); \ |
| 1617 | (dev) = ata_dev_next((dev), (link), ATA_DITER_##mode)) |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1618 | |
Tejun Heo | 6d1245b | 2007-02-20 23:20:27 +0900 | [diff] [blame] | 1619 | /** |
| 1620 | * ata_ncq_enabled - Test whether NCQ is enabled |
| 1621 | * @dev: ATA device to test for |
| 1622 | * |
| 1623 | * LOCKING: |
| 1624 | * spin_lock_irqsave(host lock) |
| 1625 | * |
| 1626 | * RETURNS: |
| 1627 | * 1 if NCQ is enabled for @dev, 0 otherwise. |
| 1628 | */ |
| 1629 | static inline int ata_ncq_enabled(struct ata_device *dev) |
| 1630 | { |
| 1631 | return (dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF | |
| 1632 | ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ; |
| 1633 | } |
Edward Falk | 0baab86 | 2005-06-02 18:17:13 -0400 | [diff] [blame] | 1634 | |
Marc Carino | 87fb6c3 | 2013-08-24 23:22:51 -0700 | [diff] [blame] | 1635 | static inline bool ata_fpdma_dsm_supported(struct ata_device *dev) |
| 1636 | { |
| 1637 | return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) && |
| 1638 | (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET] & |
| 1639 | ATA_LOG_NCQ_SEND_RECV_DSM_TRIM); |
| 1640 | } |
| 1641 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1642 | static inline void ata_qc_set_polling(struct ata_queued_cmd *qc) |
| 1643 | { |
| 1644 | qc->tf.ctl |= ATA_NIEN; |
| 1645 | } |
| 1646 | |
Tejun Heo | f69499f | 2006-05-15 20:58:03 +0900 | [diff] [blame] | 1647 | static inline struct ata_queued_cmd *__ata_qc_from_tag(struct ata_port *ap, |
| 1648 | unsigned int tag) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1649 | { |
| 1650 | if (likely(ata_tag_valid(tag))) |
| 1651 | return &ap->qcmd[tag]; |
| 1652 | return NULL; |
| 1653 | } |
| 1654 | |
Tejun Heo | f69499f | 2006-05-15 20:58:03 +0900 | [diff] [blame] | 1655 | static inline struct ata_queued_cmd *ata_qc_from_tag(struct ata_port *ap, |
| 1656 | unsigned int tag) |
| 1657 | { |
| 1658 | struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag); |
| 1659 | |
| 1660 | if (unlikely(!qc) || !ap->ops->error_handler) |
| 1661 | return qc; |
| 1662 | |
| 1663 | if ((qc->flags & (ATA_QCFLAG_ACTIVE | |
| 1664 | ATA_QCFLAG_FAILED)) == ATA_QCFLAG_ACTIVE) |
| 1665 | return qc; |
| 1666 | |
| 1667 | return NULL; |
| 1668 | } |
| 1669 | |
Tejun Heo | aacda37 | 2008-03-18 17:47:43 +0900 | [diff] [blame] | 1670 | static inline unsigned int ata_qc_raw_nbytes(struct ata_queued_cmd *qc) |
| 1671 | { |
| 1672 | return qc->nbytes - min(qc->extrabytes, qc->nbytes); |
| 1673 | } |
| 1674 | |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1675 | static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1676 | { |
| 1677 | memset(tf, 0, sizeof(*tf)); |
| 1678 | |
Tejun Heo | 5fe7454 | 2010-05-10 21:41:37 +0200 | [diff] [blame] | 1679 | #ifdef CONFIG_ATA_SFF |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 1680 | tf->ctl = dev->link->ap->ctl; |
Tejun Heo | 5fe7454 | 2010-05-10 21:41:37 +0200 | [diff] [blame] | 1681 | #else |
| 1682 | tf->ctl = ATA_DEVCTL_OBS; |
| 1683 | #endif |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1684 | if (dev->devno == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1685 | tf->device = ATA_DEVICE_OBS; |
| 1686 | else |
| 1687 | tf->device = ATA_DEVICE_OBS | ATA_DEV1; |
| 1688 | } |
| 1689 | |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1690 | static inline void ata_qc_reinit(struct ata_queued_cmd *qc) |
| 1691 | { |
Tejun Heo | 501e0c50 | 2007-01-17 11:34:02 +0900 | [diff] [blame] | 1692 | qc->dma_dir = DMA_NONE; |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 1693 | qc->sg = NULL; |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1694 | qc->flags = 0; |
Jens Axboe | 8726021 | 2007-10-16 11:14:12 +0200 | [diff] [blame] | 1695 | qc->cursg = NULL; |
| 1696 | qc->cursg_ofs = 0; |
Tejun Heo | aacda37 | 2008-03-18 17:47:43 +0900 | [diff] [blame] | 1697 | qc->nbytes = qc->extrabytes = qc->curbytes = 0; |
Brian King | 7a80118 | 2007-01-17 12:32:12 -0600 | [diff] [blame] | 1698 | qc->n_elem = 0; |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 1699 | qc->err_mask = 0; |
Mark Lord | 5a5dbd1 | 2007-03-16 10:22:26 -0400 | [diff] [blame] | 1700 | qc->sect_size = ATA_SECT_SIZE; |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1701 | |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1702 | ata_tf_init(qc->dev, &qc->tf); |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 1703 | |
| 1704 | /* init result_tf such that it indicates normal completion */ |
| 1705 | qc->result_tf.command = ATA_DRDY; |
| 1706 | qc->result_tf.feature = 0; |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1707 | } |
| 1708 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 1709 | static inline int ata_try_flush_cache(const struct ata_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | { |
| 1711 | return ata_id_wcache_enabled(dev->id) || |
| 1712 | ata_id_has_flush(dev->id) || |
| 1713 | ata_id_has_flush_ext(dev->id); |
| 1714 | } |
| 1715 | |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 1716 | static inline unsigned int ac_err_mask(u8 status) |
| 1717 | { |
Albert Lee | 3655d1d | 2006-05-19 11:43:04 +0800 | [diff] [blame] | 1718 | if (status & (ATA_BUSY | ATA_DRQ)) |
Tejun Heo | 11a56d2 | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 1719 | return AC_ERR_HSM; |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 1720 | if (status & (ATA_ERR | ATA_DF)) |
| 1721 | return AC_ERR_DEV; |
| 1722 | return 0; |
| 1723 | } |
| 1724 | |
| 1725 | static inline unsigned int __ac_err_mask(u8 status) |
| 1726 | { |
| 1727 | unsigned int mask = ac_err_mask(status); |
| 1728 | if (mask == 0) |
| 1729 | return AC_ERR_OTHER; |
| 1730 | return mask; |
| 1731 | } |
| 1732 | |
Jeff Garzik | 35bb94b | 2006-04-11 13:12:34 -0400 | [diff] [blame] | 1733 | static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host) |
| 1734 | { |
Tejun Heo | 4911487 | 2007-04-17 23:44:06 +0900 | [diff] [blame] | 1735 | return *(struct ata_port **)&host->hostdata[0]; |
Jeff Garzik | 35bb94b | 2006-04-11 13:12:34 -0400 | [diff] [blame] | 1736 | } |
| 1737 | |
Tejun Heo | 78ab88f | 2008-05-01 23:41:41 +0900 | [diff] [blame] | 1738 | static inline int ata_check_ready(u8 status) |
| 1739 | { |
Jeff Garzik | 005b1f7 | 2008-05-09 15:00:55 -0400 | [diff] [blame] | 1740 | if (!(status & ATA_BUSY)) |
| 1741 | return 1; |
Tejun Heo | 78ab88f | 2008-05-01 23:41:41 +0900 | [diff] [blame] | 1742 | |
| 1743 | /* 0xff indicates either no device or device not ready */ |
| 1744 | if (status == 0xff) |
| 1745 | return -ENODEV; |
| 1746 | |
Jeff Garzik | 005b1f7 | 2008-05-09 15:00:55 -0400 | [diff] [blame] | 1747 | return 0; |
Tejun Heo | 78ab88f | 2008-05-01 23:41:41 +0900 | [diff] [blame] | 1748 | } |
| 1749 | |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 1750 | static inline unsigned long ata_deadline(unsigned long from_jiffies, |
| 1751 | unsigned long timeout_msecs) |
| 1752 | { |
| 1753 | return from_jiffies + msecs_to_jiffies(timeout_msecs); |
| 1754 | } |
| 1755 | |
Alan Cox | b15b3eb | 2008-08-01 09:18:34 +0100 | [diff] [blame] | 1756 | /* Don't open code these in drivers as there are traps. Firstly the range may |
| 1757 | change in future hardware and specs, secondly 0xFF means 'no DMA' but is |
| 1758 | > UDMA_0. Dyma ddreigiau */ |
| 1759 | |
| 1760 | static inline int ata_using_mwdma(struct ata_device *adev) |
| 1761 | { |
| 1762 | if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4) |
| 1763 | return 1; |
| 1764 | return 0; |
| 1765 | } |
| 1766 | |
| 1767 | static inline int ata_using_udma(struct ata_device *adev) |
| 1768 | { |
| 1769 | if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7) |
| 1770 | return 1; |
| 1771 | return 0; |
| 1772 | } |
| 1773 | |
| 1774 | static inline int ata_dma_enabled(struct ata_device *adev) |
| 1775 | { |
| 1776 | return (adev->dma_mode == 0xFF ? 0 : 1); |
| 1777 | } |
Tejun Heo | 48515f6 | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1778 | |
| 1779 | /************************************************************************** |
| 1780 | * PMP - drivers/ata/libata-pmp.c |
| 1781 | */ |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1782 | #ifdef CONFIG_SATA_PMP |
| 1783 | |
Tejun Heo | 48515f6 | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1784 | extern const struct ata_port_operations sata_pmp_port_ops; |
| 1785 | |
| 1786 | extern int sata_pmp_qc_defer_cmd_switch(struct ata_queued_cmd *qc); |
| 1787 | extern void sata_pmp_error_handler(struct ata_port *ap); |
| 1788 | |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1789 | #else /* CONFIG_SATA_PMP */ |
| 1790 | |
| 1791 | #define sata_pmp_port_ops sata_port_ops |
| 1792 | #define sata_pmp_qc_defer_cmd_switch ata_std_qc_defer |
| 1793 | #define sata_pmp_error_handler ata_std_error_handler |
| 1794 | |
| 1795 | #endif /* CONFIG_SATA_PMP */ |
| 1796 | |
Tejun Heo | 48515f6 | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1797 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1798 | /************************************************************************** |
| 1799 | * SFF - drivers/ata/libata-sff.c |
| 1800 | */ |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1801 | #ifdef CONFIG_ATA_SFF |
| 1802 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1803 | extern const struct ata_port_operations ata_sff_port_ops; |
Alan Cox | 871af12 | 2009-01-05 14:16:39 +0000 | [diff] [blame] | 1804 | extern const struct ata_port_operations ata_bmdma32_port_ops; |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1805 | |
| 1806 | /* PIO only, sg_tablesize and dma_boundary limits can be removed */ |
| 1807 | #define ATA_PIO_SHT(drv_name) \ |
| 1808 | ATA_BASE_SHT(drv_name), \ |
| 1809 | .sg_tablesize = LIBATA_MAX_PRD, \ |
| 1810 | .dma_boundary = ATA_DMA_BOUNDARY |
| 1811 | |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1812 | extern void ata_sff_dev_select(struct ata_port *ap, unsigned int device); |
| 1813 | extern u8 ata_sff_check_status(struct ata_port *ap); |
Alan Cox | a57c1ba | 2008-05-29 22:10:58 +0100 | [diff] [blame] | 1814 | extern void ata_sff_pause(struct ata_port *ap); |
| 1815 | extern void ata_sff_dma_pause(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1816 | extern int ata_sff_busy_sleep(struct ata_port *ap, |
| 1817 | unsigned long timeout_pat, unsigned long timeout); |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 1818 | extern int ata_sff_wait_ready(struct ata_link *link, unsigned long deadline); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1819 | extern void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf); |
| 1820 | extern void ata_sff_tf_read(struct ata_port *ap, struct ata_taskfile *tf); |
| 1821 | extern void ata_sff_exec_command(struct ata_port *ap, |
| 1822 | const struct ata_taskfile *tf); |
| 1823 | extern unsigned int ata_sff_data_xfer(struct ata_device *dev, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1824 | unsigned char *buf, unsigned int buflen, int rw); |
Alan Cox | 871af12 | 2009-01-05 14:16:39 +0000 | [diff] [blame] | 1825 | extern unsigned int ata_sff_data_xfer32(struct ata_device *dev, |
| 1826 | unsigned char *buf, unsigned int buflen, int rw); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1827 | extern unsigned int ata_sff_data_xfer_noirq(struct ata_device *dev, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1828 | unsigned char *buf, unsigned int buflen, int rw); |
Sergei Shtylyov | e42a542 | 2010-05-07 22:49:02 +0400 | [diff] [blame] | 1829 | extern void ata_sff_irq_on(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1830 | extern void ata_sff_irq_clear(struct ata_port *ap); |
| 1831 | extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, |
| 1832 | u8 status, int in_wq); |
Viresh Kumar | 64b9759 | 2011-02-22 14:32:38 +0530 | [diff] [blame] | 1833 | extern void ata_sff_queue_work(struct work_struct *work); |
| 1834 | extern void ata_sff_queue_delayed_work(struct delayed_work *dwork, |
| 1835 | unsigned long delay); |
Gwendal Grignou | ea3c645 | 2010-08-31 16:20:36 -0700 | [diff] [blame] | 1836 | extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1837 | extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc); |
Tejun Heo | 22183bf | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 1838 | extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc); |
Tejun Heo | c3b2889 | 2010-05-19 22:10:21 +0200 | [diff] [blame] | 1839 | extern unsigned int ata_sff_port_intr(struct ata_port *ap, |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1840 | struct ata_queued_cmd *qc); |
| 1841 | extern irqreturn_t ata_sff_interrupt(int irq, void *dev_instance); |
Alan Cox | c96f173 | 2009-03-24 10:23:46 +0000 | [diff] [blame] | 1842 | extern void ata_sff_lost_interrupt(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1843 | extern void ata_sff_freeze(struct ata_port *ap); |
| 1844 | extern void ata_sff_thaw(struct ata_port *ap); |
| 1845 | extern int ata_sff_prereset(struct ata_link *link, unsigned long deadline); |
| 1846 | extern unsigned int ata_sff_dev_classify(struct ata_device *dev, int present, |
| 1847 | u8 *r_err); |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 1848 | extern int ata_sff_wait_after_reset(struct ata_link *link, unsigned int devmask, |
| 1849 | unsigned long deadline); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1850 | extern int ata_sff_softreset(struct ata_link *link, unsigned int *classes, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1851 | unsigned long deadline); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1852 | extern int sata_sff_hardreset(struct ata_link *link, unsigned int *class, |
| 1853 | unsigned long deadline); |
| 1854 | extern void ata_sff_postreset(struct ata_link *link, unsigned int *classes); |
Alan Cox | 3d47aa8 | 2009-03-24 10:23:19 +0000 | [diff] [blame] | 1855 | extern void ata_sff_drain_fifo(struct ata_queued_cmd *qc); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1856 | extern void ata_sff_error_handler(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1857 | extern void ata_sff_std_ports(struct ata_ioports *ioaddr); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1858 | #ifdef CONFIG_PCI |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1859 | extern int ata_pci_sff_init_host(struct ata_host *host); |
| 1860 | extern int ata_pci_sff_prepare_host(struct pci_dev *pdev, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1861 | const struct ata_port_info * const * ppi, |
| 1862 | struct ata_host **r_host); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1863 | extern int ata_pci_sff_activate_host(struct ata_host *host, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1864 | irq_handler_t irq_handler, |
| 1865 | struct scsi_host_template *sht); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1866 | extern int ata_pci_sff_init_one(struct pci_dev *pdev, |
Alan Cox | 16ea0fc | 2010-02-23 02:26:06 -0500 | [diff] [blame] | 1867 | const struct ata_port_info * const * ppi, |
| 1868 | struct scsi_host_template *sht, void *host_priv, int hflags); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1869 | #endif /* CONFIG_PCI */ |
| 1870 | |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 1871 | #ifdef CONFIG_ATA_BMDMA |
| 1872 | |
| 1873 | extern const struct ata_port_operations ata_bmdma_port_ops; |
| 1874 | |
| 1875 | #define ATA_BMDMA_SHT(drv_name) \ |
| 1876 | ATA_BASE_SHT(drv_name), \ |
| 1877 | .sg_tablesize = LIBATA_MAX_PRD, \ |
| 1878 | .dma_boundary = ATA_DMA_BOUNDARY |
| 1879 | |
Tejun Heo | f47451c | 2010-05-10 21:41:40 +0200 | [diff] [blame] | 1880 | extern void ata_bmdma_qc_prep(struct ata_queued_cmd *qc); |
Tejun Heo | 360ff78 | 2010-05-10 21:41:42 +0200 | [diff] [blame] | 1881 | extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc); |
Tejun Heo | f47451c | 2010-05-10 21:41:40 +0200 | [diff] [blame] | 1882 | extern void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc); |
Tejun Heo | c3b2889 | 2010-05-19 22:10:21 +0200 | [diff] [blame] | 1883 | extern unsigned int ata_bmdma_port_intr(struct ata_port *ap, |
| 1884 | struct ata_queued_cmd *qc); |
| 1885 | extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance); |
Tejun Heo | fe06e5f | 2010-05-10 21:41:39 +0200 | [diff] [blame] | 1886 | extern void ata_bmdma_error_handler(struct ata_port *ap); |
| 1887 | extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc); |
Tejun Heo | 37f65b8 | 2010-05-19 22:10:20 +0200 | [diff] [blame] | 1888 | extern void ata_bmdma_irq_clear(struct ata_port *ap); |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1889 | extern void ata_bmdma_setup(struct ata_queued_cmd *qc); |
| 1890 | extern void ata_bmdma_start(struct ata_queued_cmd *qc); |
| 1891 | extern void ata_bmdma_stop(struct ata_queued_cmd *qc); |
| 1892 | extern u8 ata_bmdma_status(struct ata_port *ap); |
Tejun Heo | c708765 | 2010-05-10 21:41:34 +0200 | [diff] [blame] | 1893 | extern int ata_bmdma_port_start(struct ata_port *ap); |
| 1894 | extern int ata_bmdma_port_start32(struct ata_port *ap); |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1895 | |
| 1896 | #ifdef CONFIG_PCI |
| 1897 | extern int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev); |
Tejun Heo | c708765 | 2010-05-10 21:41:34 +0200 | [diff] [blame] | 1898 | extern void ata_pci_bmdma_init(struct ata_host *host); |
Tejun Heo | 1c5afdf | 2010-05-19 22:10:22 +0200 | [diff] [blame] | 1899 | extern int ata_pci_bmdma_prepare_host(struct pci_dev *pdev, |
| 1900 | const struct ata_port_info * const * ppi, |
| 1901 | struct ata_host **r_host); |
| 1902 | extern int ata_pci_bmdma_init_one(struct pci_dev *pdev, |
| 1903 | const struct ata_port_info * const * ppi, |
| 1904 | struct scsi_host_template *sht, |
| 1905 | void *host_priv, int hflags); |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1906 | #endif /* CONFIG_PCI */ |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 1907 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1908 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1909 | /** |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1910 | * ata_sff_busy_wait - Wait for a port status register |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1911 | * @ap: Port to wait for. |
| 1912 | * @bits: bits that must be clear |
| 1913 | * @max: number of 10uS waits to perform |
| 1914 | * |
| 1915 | * Waits up to max*10 microseconds for the selected bits in the port's |
| 1916 | * status register to be cleared. |
| 1917 | * Returns final value of status register. |
| 1918 | * |
| 1919 | * LOCKING: |
| 1920 | * Inherited from caller. |
| 1921 | */ |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1922 | static inline u8 ata_sff_busy_wait(struct ata_port *ap, unsigned int bits, |
| 1923 | unsigned int max) |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1924 | { |
| 1925 | u8 status; |
| 1926 | |
| 1927 | do { |
| 1928 | udelay(10); |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1929 | status = ap->ops->sff_check_status(ap); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1930 | max--; |
| 1931 | } while (status != 0xff && (status & bits) && (max > 0)); |
| 1932 | |
| 1933 | return status; |
| 1934 | } |
| 1935 | |
| 1936 | /** |
| 1937 | * ata_wait_idle - Wait for a port to be idle. |
| 1938 | * @ap: Port to wait for. |
| 1939 | * |
| 1940 | * Waits up to 10ms for port's BUSY and DRQ signals to clear. |
| 1941 | * Returns final value of status register. |
| 1942 | * |
| 1943 | * LOCKING: |
| 1944 | * Inherited from caller. |
| 1945 | */ |
| 1946 | static inline u8 ata_wait_idle(struct ata_port *ap) |
| 1947 | { |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1948 | u8 status = ata_sff_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1949 | |
| 1950 | #ifdef ATA_DEBUG |
| 1951 | if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) |
| 1952 | ata_port_printk(ap, KERN_DEBUG, "abnormal Status 0x%X\n", |
| 1953 | status); |
| 1954 | #endif |
| 1955 | |
| 1956 | return status; |
| 1957 | } |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1958 | #endif /* CONFIG_ATA_SFF */ |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1959 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1960 | #endif /* __LINUX_LIBATA_H__ */ |