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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
Jeff Garzik | a6d967a | 2006-09-25 15:33:09 -0400 | [diff] [blame] | 41 | /* |
| 42 | * Define if arch has non-standard setup. This is a _PCI_ standard |
| 43 | * not a legacy or ISA standard. |
| 44 | */ |
| 45 | #ifdef CONFIG_ATA_NONSTANDARD |
Alan Cox | 2ec7df0 | 2006-08-10 16:59:10 +0900 | [diff] [blame] | 46 | #include <asm/libata-portmap.h> |
Jeff Garzik | a6d967a | 2006-09-25 15:33:09 -0400 | [diff] [blame] | 47 | #else |
| 48 | #include <asm-generic/libata-portmap.h> |
| 49 | #endif |
Alan Cox | 2ec7df0 | 2006-08-10 16:59:10 +0900 | [diff] [blame] | 50 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | /* |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 52 | * compile-time options: to be removed as soon as all the drivers are |
| 53 | * converted to the new debugging mechanism |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | */ |
| 55 | #undef ATA_DEBUG /* debugging output */ |
| 56 | #undef ATA_VERBOSE_DEBUG /* yet more debugging output */ |
| 57 | #undef ATA_IRQ_TRAP /* define to ack screaming irqs */ |
| 58 | #undef ATA_NDEBUG /* define to disable quick runtime checks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | |
| 60 | |
| 61 | /* note: prints function name for you */ |
| 62 | #ifdef ATA_DEBUG |
Alexander Beregalov | 1f938d0 | 2008-07-21 00:06:19 +0400 | [diff] [blame] | 63 | #define DPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | #ifdef ATA_VERBOSE_DEBUG |
Alexander Beregalov | 1f938d0 | 2008-07-21 00:06:19 +0400 | [diff] [blame] | 65 | #define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | #else |
| 67 | #define VPRINTK(fmt, args...) |
| 68 | #endif /* ATA_VERBOSE_DEBUG */ |
| 69 | #else |
| 70 | #define DPRINTK(fmt, args...) |
| 71 | #define VPRINTK(fmt, args...) |
| 72 | #endif /* ATA_DEBUG */ |
| 73 | |
Alexander Beregalov | 1f938d0 | 2008-07-21 00:06:19 +0400 | [diff] [blame] | 74 | #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] | 75 | |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 76 | /* NEW: debug levels */ |
| 77 | #define HAVE_LIBATA_MSG 1 |
| 78 | |
| 79 | enum { |
| 80 | ATA_MSG_DRV = 0x0001, |
| 81 | ATA_MSG_INFO = 0x0002, |
| 82 | ATA_MSG_PROBE = 0x0004, |
| 83 | ATA_MSG_WARN = 0x0008, |
| 84 | ATA_MSG_MALLOC = 0x0010, |
| 85 | ATA_MSG_CTL = 0x0020, |
| 86 | ATA_MSG_INTR = 0x0040, |
| 87 | ATA_MSG_ERR = 0x0080, |
| 88 | }; |
| 89 | |
| 90 | #define ata_msg_drv(p) ((p)->msg_enable & ATA_MSG_DRV) |
| 91 | #define ata_msg_info(p) ((p)->msg_enable & ATA_MSG_INFO) |
| 92 | #define ata_msg_probe(p) ((p)->msg_enable & ATA_MSG_PROBE) |
| 93 | #define ata_msg_warn(p) ((p)->msg_enable & ATA_MSG_WARN) |
| 94 | #define ata_msg_malloc(p) ((p)->msg_enable & ATA_MSG_MALLOC) |
| 95 | #define ata_msg_ctl(p) ((p)->msg_enable & ATA_MSG_CTL) |
| 96 | #define ata_msg_intr(p) ((p)->msg_enable & ATA_MSG_INTR) |
| 97 | #define ata_msg_err(p) ((p)->msg_enable & ATA_MSG_ERR) |
| 98 | |
| 99 | static inline u32 ata_msg_init(int dval, int default_msg_enable_bits) |
| 100 | { |
| 101 | if (dval < 0 || dval >= (sizeof(u32) * 8)) |
| 102 | return default_msg_enable_bits; /* should be 0x1 - only driver info msgs */ |
| 103 | if (!dval) |
| 104 | return 0; |
| 105 | return (1 << dval) - 1; |
| 106 | } |
| 107 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | /* defines only for the constants which don't work well as enums */ |
| 109 | #define ATA_TAG_POISON 0xfafbfcfdU |
| 110 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | enum { |
| 112 | /* various global constants */ |
| 113 | LIBATA_MAX_PRD = ATA_MAX_PRD / 2, |
Alan Cox | d26fc95 | 2007-07-06 19:13:52 -0400 | [diff] [blame] | 114 | LIBATA_DUMB_MAX_PRD = ATA_MAX_PRD / 4, /* Worst case */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | ATA_DEF_QUEUE = 1, |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 116 | /* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */ |
Tejun Heo | a6e6ce8 | 2006-05-15 21:03:48 +0900 | [diff] [blame] | 117 | ATA_MAX_QUEUE = 32, |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 118 | ATA_TAG_INTERNAL = ATA_MAX_QUEUE - 1, |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 119 | ATA_SHORT_PAUSE = 16, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | |
Tejun Heo | 140b5e5 | 2007-12-12 12:21:52 +0900 | [diff] [blame] | 121 | ATAPI_MAX_DRAIN = 16 << 10, |
| 122 | |
Tejun Heo | b558edd | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 123 | ATA_ALL_DEVICES = (1 << ATA_MAX_DEVICES) - 1, |
| 124 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | ATA_SHT_EMULATED = 1, |
| 126 | ATA_SHT_CMD_PER_LUN = 1, |
| 127 | ATA_SHT_THIS_ID = -1, |
Jeff Garzik | cf48293 | 2005-10-22 00:19:33 -0400 | [diff] [blame] | 128 | ATA_SHT_USE_CLUSTERING = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | |
| 130 | /* struct ata_device stuff */ |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 131 | ATA_DFLAG_LBA = (1 << 0), /* device supports LBA */ |
| 132 | ATA_DFLAG_LBA48 = (1 << 1), /* device supports LBA48 */ |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 133 | 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] | 134 | ATA_DFLAG_NCQ = (1 << 3), /* device supports NCQ */ |
Tejun Heo | 6fc49ad | 2006-11-11 20:10:45 +0900 | [diff] [blame] | 135 | ATA_DFLAG_FLUSH_EXT = (1 << 4), /* do FLUSH_EXT instead of FLUSH */ |
Tejun Heo | 6746544 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 136 | ATA_DFLAG_ACPI_PENDING = (1 << 5), /* ACPI resume action pending */ |
| 137 | ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */ |
Tejun Heo | 7d77b24 | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 138 | ATA_DFLAG_AN = (1 << 7), /* AN configured */ |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 139 | ATA_DFLAG_HIPM = (1 << 8), /* device supports HIPM */ |
| 140 | ATA_DFLAG_DIPM = (1 << 9), /* device supports DIPM */ |
Tejun Heo | 9116300 | 2008-02-21 13:25:50 +0900 | [diff] [blame] | 141 | ATA_DFLAG_DMADIR = (1 << 10), /* device requires DMADIR */ |
Kristen Carlson Accardi | 2557164 | 2007-09-11 11:41:59 -0700 | [diff] [blame] | 142 | ATA_DFLAG_CFG_MASK = (1 << 12) - 1, |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 143 | |
Kristen Carlson Accardi | 2557164 | 2007-09-11 11:41:59 -0700 | [diff] [blame] | 144 | ATA_DFLAG_PIO = (1 << 12), /* device limited to PIO mode */ |
| 145 | ATA_DFLAG_NCQ_OFF = (1 << 13), /* device limited to non-NCQ mode */ |
Tejun Heo | 054a5fb | 2007-10-25 18:30:36 +0900 | [diff] [blame] | 146 | ATA_DFLAG_SLEEPING = (1 << 15), /* device is sleeping */ |
Tejun Heo | 00115e0 | 2007-11-27 19:28:58 +0900 | [diff] [blame] | 147 | ATA_DFLAG_DUBIOUS_XFER = (1 << 16), /* data transfer not verified */ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 148 | ATA_DFLAG_NO_UNLOAD = (1 << 17), /* device doesn't support unload */ |
Tejun Heo | 445d211 | 2010-04-05 10:33:13 +0900 | [diff] [blame] | 149 | ATA_DFLAG_UNLOCK_HPA = (1 << 18), /* unlock HPA */ |
Tejun Heo | f20ded3 | 2007-11-27 19:28:52 +0900 | [diff] [blame] | 150 | ATA_DFLAG_INIT_MASK = (1 << 24) - 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | |
Tejun Heo | f20ded3 | 2007-11-27 19:28:52 +0900 | [diff] [blame] | 152 | ATA_DFLAG_DETACH = (1 << 24), |
| 153 | ATA_DFLAG_DETACHED = (1 << 25), |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 154 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | ATA_DEV_UNKNOWN = 0, /* unknown device */ |
| 156 | ATA_DEV_ATA = 1, /* ATA device */ |
| 157 | ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */ |
| 158 | ATA_DEV_ATAPI = 3, /* ATAPI device */ |
| 159 | ATA_DEV_ATAPI_UNSUP = 4, /* ATAPI device (unsupported) */ |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 160 | ATA_DEV_PMP = 5, /* SATA port multiplier */ |
| 161 | ATA_DEV_PMP_UNSUP = 6, /* SATA port multiplier (unsupported) */ |
| 162 | ATA_DEV_SEMB = 7, /* SEMB */ |
| 163 | ATA_DEV_SEMB_UNSUP = 8, /* SEMB (unsupported) */ |
| 164 | ATA_DEV_NONE = 9, /* no device */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 166 | /* struct ata_link flags */ |
Tejun Heo | 05944bd | 2008-08-13 20:19:09 +0900 | [diff] [blame] | 167 | ATA_LFLAG_NO_HRST = (1 << 1), /* avoid hardreset */ |
Tejun Heo | ae791c0 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 168 | ATA_LFLAG_NO_SRST = (1 << 2), /* avoid softreset */ |
| 169 | ATA_LFLAG_ASSUME_ATA = (1 << 3), /* assume ATA class */ |
| 170 | ATA_LFLAG_ASSUME_SEMB = (1 << 4), /* assume SEMB class */ |
| 171 | ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB, |
Tejun Heo | fd995f7 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 172 | ATA_LFLAG_NO_RETRY = (1 << 5), /* don't retry this link */ |
Tejun Heo | f9df58c | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 173 | ATA_LFLAG_DISABLED = (1 << 6), /* link is disabled */ |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 174 | ATA_LFLAG_SW_ACTIVITY = (1 << 7), /* keep activity stats */ |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 175 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | /* struct ata_port flags */ |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 177 | ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | /* (doesn't imply presence) */ |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 179 | ATA_FLAG_SATA = (1 << 1), |
| 180 | ATA_FLAG_NO_LEGACY = (1 << 2), /* no legacy mode check */ |
| 181 | ATA_FLAG_MMIO = (1 << 3), /* use MMIO, not PIO */ |
| 182 | ATA_FLAG_SRST = (1 << 4), /* (obsolete) use ATA SRST, not E.D.D. */ |
| 183 | ATA_FLAG_SATA_RESET = (1 << 5), /* (obsolete) use COMRESET */ |
| 184 | ATA_FLAG_NO_ATAPI = (1 << 6), /* No ATAPI support */ |
| 185 | ATA_FLAG_PIO_DMA = (1 << 7), /* PIO cmds via DMA */ |
| 186 | ATA_FLAG_PIO_LBA48 = (1 << 8), /* Host DMA engine is LBA28 only */ |
Tejun Heo | 7395acb | 2006-05-31 18:27:25 +0900 | [diff] [blame] | 187 | ATA_FLAG_PIO_POLLING = (1 << 9), /* use polling PIO if LLD |
| 188 | * doesn't handle PIO interrupts */ |
| 189 | ATA_FLAG_NCQ = (1 << 10), /* host supports NCQ */ |
Rafael J. Wysocki | 2a6e58d | 2009-01-19 20:56:43 +0100 | [diff] [blame] | 190 | ATA_FLAG_NO_POWEROFF_SPINDOWN = (1 << 11), /* don't spindown before poweroff */ |
| 191 | ATA_FLAG_NO_HIBERNATE_SPINDOWN = (1 << 12), /* don't spindown before hibernation */ |
Tejun Heo | 7395acb | 2006-05-31 18:27:25 +0900 | [diff] [blame] | 192 | ATA_FLAG_DEBUGMSG = (1 << 13), |
Shaohua Li | 388539f | 2009-07-27 09:24:35 +0800 | [diff] [blame] | 193 | ATA_FLAG_FPDMA_AA = (1 << 14), /* driver supports Auto-Activate */ |
Tejun Heo | b2a8bbe | 2007-01-25 19:40:05 +0900 | [diff] [blame] | 194 | ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */ |
Alan Cox | f834e49 | 2007-02-07 13:46:00 -0800 | [diff] [blame] | 195 | ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */ |
Tejun Heo | 3cadbcc | 2007-05-15 03:28:15 +0900 | [diff] [blame] | 196 | ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */ |
Kristen Carlson Accardi | 9f45cbd | 2007-08-15 03:57:11 -0400 | [diff] [blame] | 197 | ATA_FLAG_AN = (1 << 18), /* controller supports AN */ |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 198 | ATA_FLAG_PMP = (1 << 19), /* controller supports PMP */ |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 199 | ATA_FLAG_IPM = (1 << 20), /* driver can handle IPM */ |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 200 | ATA_FLAG_EM = (1 << 21), /* driver supports enclosure |
| 201 | * management */ |
| 202 | ATA_FLAG_SW_ACTIVITY = (1 << 22), /* driver supports sw activity |
| 203 | * led */ |
Jens Axboe | 9b84754 | 2006-01-06 09:28:07 +0100 | [diff] [blame] | 204 | |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 205 | /* bits 24:31 of ap->flags are reserved for LLD specific flags */ |
Alan Cox | 8d238e0 | 2006-01-17 20:50:31 +0000 | [diff] [blame] | 206 | |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 207 | |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 208 | /* struct ata_port pflags */ |
| 209 | ATA_PFLAG_EH_PENDING = (1 << 0), /* EH pending */ |
| 210 | ATA_PFLAG_EH_IN_PROGRESS = (1 << 1), /* EH in progress */ |
| 211 | ATA_PFLAG_FROZEN = (1 << 2), /* port is frozen */ |
| 212 | ATA_PFLAG_RECOVERED = (1 << 3), /* recovery action performed */ |
| 213 | ATA_PFLAG_LOADING = (1 << 4), /* boot/loading probe */ |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 214 | ATA_PFLAG_SCSI_HOTPLUG = (1 << 6), /* SCSI hotplug scheduled */ |
Tejun Heo | f4d6d00 | 2007-05-01 11:50:15 +0200 | [diff] [blame] | 215 | ATA_PFLAG_INITIALIZING = (1 << 7), /* being initialized, don't touch */ |
Tejun Heo | afaa5c3 | 2007-10-09 15:06:10 +0900 | [diff] [blame] | 216 | ATA_PFLAG_RESETTING = (1 << 8), /* reset in progress */ |
Tejun Heo | ece180d | 2008-11-03 20:04:37 +0900 | [diff] [blame] | 217 | ATA_PFLAG_UNLOADING = (1 << 9), /* driver is being unloaded */ |
| 218 | ATA_PFLAG_UNLOADED = (1 << 10), /* driver is unloaded */ |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 219 | |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 220 | ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */ |
Tejun Heo | 500530f | 2006-07-03 16:07:27 +0900 | [diff] [blame] | 221 | ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */ |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 222 | ATA_PFLAG_INIT_GTM_VALID = (1 << 19), /* initial gtm data valid */ |
Tejun Heo | dde4458 | 2006-02-02 00:56:10 +0900 | [diff] [blame] | 223 | |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 224 | ATA_PFLAG_PIO32 = (1 << 20), /* 32bit PIO */ |
| 225 | ATA_PFLAG_PIO32CHANGE = (1 << 21), /* 32bit PIO can be turned on/off */ |
| 226 | |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 227 | /* struct ata_queued_cmd flags */ |
| 228 | 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] | 229 | ATA_QCFLAG_DMAMAP = (1 << 1), /* SG table is DMA mapped */ |
Tejun Heo | 2719736 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 230 | ATA_QCFLAG_IO = (1 << 3), /* standard IO command */ |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 231 | ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */ |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 232 | ATA_QCFLAG_CLEAR_EXCL = (1 << 5), /* clear excl_link on completion */ |
Tejun Heo | e027bd3 | 2007-10-26 16:19:26 +0900 | [diff] [blame] | 233 | ATA_QCFLAG_QUIET = (1 << 6), /* don't report device error */ |
Tejun Heo | 03faab7 | 2008-03-27 19:14:24 +0900 | [diff] [blame] | 234 | ATA_QCFLAG_RETRY = (1 << 7), /* retry after failure */ |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 235 | |
Tejun Heo | 9ec957f | 2006-05-15 20:57:58 +0900 | [diff] [blame] | 236 | ATA_QCFLAG_FAILED = (1 << 16), /* cmd failed and is owned by EH */ |
| 237 | ATA_QCFLAG_SENSE_VALID = (1 << 17), /* sense data valid */ |
| 238 | ATA_QCFLAG_EH_SCHEDULED = (1 << 18), /* EH scheduled (obsolete) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
Alan Cox | 4e5ec5d | 2006-03-27 18:42:40 +0100 | [diff] [blame] | 240 | /* host set flags */ |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 241 | 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] | 242 | ATA_HOST_STARTED = (1 << 1), /* Host started */ |
Arjan van de Ven | 886ad09 | 2009-01-09 15:54:07 -0800 | [diff] [blame] | 243 | ATA_HOST_PARALLEL_SCAN = (1 << 2), /* Ports on this host can be scanned in parallel */ |
Jeff Garzik | 9bec2e3 | 2006-08-31 00:02:15 -0400 | [diff] [blame] | 244 | |
Tejun Heo | b8b275e | 2007-07-10 15:55:43 +0900 | [diff] [blame] | 245 | /* bits 24:31 of host->flags are reserved for LLD specific flags */ |
| 246 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | /* various lengths of time */ |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 248 | ATA_TMOUT_BOOT = 30000, /* heuristic */ |
| 249 | ATA_TMOUT_BOOT_QUICK = 7000, /* heuristic */ |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 250 | ATA_TMOUT_INTERNAL_QUICK = 5000, |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 251 | ATA_TMOUT_MAX_PARK = 30000, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
Tejun Heo | b48d58f | 2010-04-09 19:46:38 +0900 | [diff] [blame] | 253 | /* |
| 254 | * GoVault needs 2s and iVDR disk HHD424020F7SV00 800ms. 2s |
| 255 | * is too much without parallel probing. Use 2s if parallel |
| 256 | * probing is available, 800ms otherwise. |
Tejun Heo | 88ff6ea | 2007-10-16 14:21:24 -0700 | [diff] [blame] | 257 | */ |
Tejun Heo | b48d58f | 2010-04-09 19:46:38 +0900 | [diff] [blame] | 258 | ATA_TMOUT_FF_WAIT_LONG = 2000, |
| 259 | ATA_TMOUT_FF_WAIT = 800, |
Tejun Heo | 88ff6ea | 2007-10-16 14:21:24 -0700 | [diff] [blame] | 260 | |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 261 | /* Spec mandates to wait for ">= 2ms" before checking status |
| 262 | * after reset. We wait 150ms, because that was the magic |
| 263 | * delay used for ATAPI devices in Hale Landis's ATADRVR, for |
| 264 | * the period of time between when the ATA command register is |
| 265 | * written, and then status is checked. Because waiting for |
| 266 | * "a while" before checking status is fine, post SRST, we |
| 267 | * perform this magic delay here as well. |
| 268 | * |
| 269 | * Old drivers/ide uses the 2mS rule and then waits for ready. |
| 270 | */ |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 271 | ATA_WAIT_AFTER_RESET = 150, |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 272 | |
Tejun Heo | 9dadd45 | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 273 | /* If PMP is supported, we have to do follow-up SRST. As some |
| 274 | * PMPs don't send D2H Reg FIS after hardreset, LLDs are |
| 275 | * advised to wait only for the following duration before |
| 276 | * doing SRST. |
| 277 | */ |
Stuart Hayes | e7d3ef1 | 2009-03-04 11:59:46 -0800 | [diff] [blame] | 278 | ATA_TMOUT_PMP_SRST_WAIT = 5000, |
Tejun Heo | 9dadd45 | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 279 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | /* ATA bus states */ |
| 281 | BUS_UNKNOWN = 0, |
| 282 | BUS_DMA = 1, |
| 283 | BUS_IDLE = 2, |
| 284 | BUS_NOINTR = 3, |
| 285 | BUS_NODATA = 4, |
| 286 | BUS_TIMER = 5, |
| 287 | BUS_PIO = 6, |
| 288 | BUS_EDD = 7, |
| 289 | BUS_IDENTIFY = 8, |
| 290 | BUS_PACKET = 9, |
| 291 | |
| 292 | /* SATA port states */ |
| 293 | PORT_UNKNOWN = 0, |
| 294 | PORT_ENABLED = 1, |
| 295 | PORT_DISABLED = 2, |
| 296 | |
| 297 | /* encoding various smaller bitmaps into a single |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 298 | * unsigned long bitmap |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | */ |
Tejun Heo | 70cd071 | 2007-11-27 19:43:40 +0900 | [diff] [blame] | 300 | ATA_NR_PIO_MODES = 7, |
| 301 | ATA_NR_MWDMA_MODES = 5, |
| 302 | ATA_NR_UDMA_MODES = 8, |
Tejun Heo | 1da7b0d | 2006-03-06 04:31:56 +0900 | [diff] [blame] | 303 | |
| 304 | ATA_SHIFT_PIO = 0, |
Tejun Heo | 70cd071 | 2007-11-27 19:43:40 +0900 | [diff] [blame] | 305 | ATA_SHIFT_MWDMA = ATA_SHIFT_PIO + ATA_NR_PIO_MODES, |
| 306 | ATA_SHIFT_UDMA = ATA_SHIFT_MWDMA + ATA_NR_MWDMA_MODES, |
Tejun Heo | 1da7b0d | 2006-03-06 04:31:56 +0900 | [diff] [blame] | 307 | |
Jeff Garzik | cedc9a4 | 2005-10-05 07:13:30 -0400 | [diff] [blame] | 308 | /* size of buffer to pad xfers ending on unaligned boundaries */ |
| 309 | ATA_DMA_PAD_SZ = 4, |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 310 | |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 311 | /* ering size */ |
| 312 | ATA_ERING_SIZE = 32, |
| 313 | |
Tejun Heo | 31cc23b | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 314 | /* return values for ->qc_defer */ |
| 315 | ATA_DEFER_LINK = 1, |
| 316 | ATA_DEFER_PORT = 2, |
| 317 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 318 | /* desc_len for ata_eh_info and context */ |
| 319 | ATA_EH_DESC_LEN = 80, |
| 320 | |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 321 | /* reset / recovery action types */ |
| 322 | ATA_EH_REVALIDATE = (1 << 0), |
Tejun Heo | cf48062 | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 323 | ATA_EH_SOFTRESET = (1 << 1), /* meaningful only in ->prereset */ |
| 324 | ATA_EH_HARDRESET = (1 << 2), /* meaningful only in ->prereset */ |
| 325 | ATA_EH_RESET = ATA_EH_SOFTRESET | ATA_EH_HARDRESET, |
Tejun Heo | f9df58c | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 326 | ATA_EH_ENABLE_LINK = (1 << 3), |
Tejun Heo | 3ec25eb | 2008-03-27 18:37:14 +0900 | [diff] [blame] | 327 | ATA_EH_LPM = (1 << 4), /* link power management action */ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 328 | ATA_EH_PARK = (1 << 5), /* unload heads and stop I/O */ |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 329 | |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 330 | ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_PARK, |
Tejun Heo | b5b3fa3 | 2008-07-31 17:02:42 +0900 | [diff] [blame] | 331 | ATA_EH_ALL_ACTIONS = ATA_EH_REVALIDATE | ATA_EH_RESET | |
| 332 | ATA_EH_ENABLE_LINK | ATA_EH_LPM, |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 333 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 334 | /* ata_eh_info->flags */ |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 335 | ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */ |
Tejun Heo | 1cdaf53 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 336 | ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */ |
| 337 | ATA_EHI_QUIET = (1 << 3), /* be quiet */ |
Tejun Heo | e2f3d75 | 2010-09-07 14:05:31 +0200 | [diff] [blame] | 338 | ATA_EHI_NO_RECOVERY = (1 << 4), /* no recovery */ |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 339 | |
Tejun Heo | 0d64a23 | 2007-04-23 02:41:05 +0900 | [diff] [blame] | 340 | ATA_EHI_DID_SOFTRESET = (1 << 16), /* already soft-reset this port */ |
| 341 | ATA_EHI_DID_HARDRESET = (1 << 17), /* already soft-reset this port */ |
| 342 | ATA_EHI_PRINTINFO = (1 << 18), /* print configuration info */ |
| 343 | ATA_EHI_SETMODE = (1 << 19), /* configure transfer mode */ |
| 344 | ATA_EHI_POST_SETMODE = (1 << 20), /* revaildating after setmode */ |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 345 | |
Tejun Heo | 0d64a23 | 2007-04-23 02:41:05 +0900 | [diff] [blame] | 346 | ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET, |
Tejun Heo | 13abf50 | 2006-07-10 23:18:46 +0900 | [diff] [blame] | 347 | |
Tejun Heo | 848e4c6 | 2008-10-21 14:26:39 +0900 | [diff] [blame] | 348 | /* mask of flags to transfer *to* the slave link */ |
| 349 | ATA_EHI_TO_SLAVE_MASK = ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, |
| 350 | |
Tejun Heo | a1e10f7 | 2007-08-18 13:28:49 +0900 | [diff] [blame] | 351 | /* max tries if error condition is still set after ->error_handler */ |
| 352 | ATA_EH_MAX_TRIES = 5, |
Tejun Heo | ad9e276 | 2006-05-15 20:58:12 +0900 | [diff] [blame] | 353 | |
Tejun Heo | 5040ab6 | 2010-01-11 11:14:44 +0900 | [diff] [blame] | 354 | /* sometimes resuming a link requires several retries */ |
| 355 | ATA_LINK_RESUME_TRIES = 5, |
| 356 | |
Tejun Heo | 14d2bac | 2006-04-02 17:54:46 +0900 | [diff] [blame] | 357 | /* how hard are we gonna try to probe/recover devices */ |
| 358 | ATA_PROBE_MAX_TRIES = 3, |
Tejun Heo | 022bdb0 | 2006-05-15 20:58:22 +0900 | [diff] [blame] | 359 | ATA_EH_DEV_TRIES = 3, |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 360 | ATA_EH_PMP_TRIES = 5, |
| 361 | ATA_EH_PMP_LINK_TRIES = 3, |
| 362 | |
Tejun Heo | bf1bff6 | 2008-05-19 01:15:10 +0900 | [diff] [blame] | 363 | SATA_PMP_RW_TIMEOUT = 3000, /* PMP read/write timeout */ |
Tejun Heo | f5914a4 | 2006-05-31 18:27:48 +0900 | [diff] [blame] | 364 | |
Tejun Heo | 87fbc5a | 2008-05-20 02:17:54 +0900 | [diff] [blame] | 365 | /* This should match the actual table size of |
| 366 | * ata_eh_cmd_timeout_table in libata-eh.c. |
| 367 | */ |
Tejun Heo | 6013efd | 2009-11-19 15:36:45 +0900 | [diff] [blame] | 368 | ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 6, |
Tejun Heo | 87fbc5a | 2008-05-20 02:17:54 +0900 | [diff] [blame] | 369 | |
Alan Cox | 9359085 | 2006-09-12 16:55:12 +0100 | [diff] [blame] | 370 | /* Horkage types. May be set by libata or controller on drives |
| 371 | (some horkage may be drive/controller pair dependant */ |
| 372 | |
| 373 | ATA_HORKAGE_DIAGNOSTIC = (1 << 0), /* Failed boot diag */ |
Alan Cox | 6919a0a | 2006-10-27 19:08:46 -0700 | [diff] [blame] | 374 | ATA_HORKAGE_NODMA = (1 << 1), /* DMA problems */ |
| 375 | ATA_HORKAGE_NONCQ = (1 << 2), /* Don't use NCQ */ |
Albert Lee | 18d6e9d | 2007-04-02 11:34:15 +0800 | [diff] [blame] | 376 | ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */ |
Tejun Heo | 16c55b0 | 2007-08-29 11:58:33 +0900 | [diff] [blame] | 377 | ATA_HORKAGE_BROKEN_HPA = (1 << 4), /* Broken HPA */ |
Tejun Heo | 50af2fa | 2008-05-19 01:15:14 +0900 | [diff] [blame] | 378 | ATA_HORKAGE_DISABLE = (1 << 5), /* Disable it */ |
Alan Cox | 93328e1 | 2007-09-29 04:06:48 -0400 | [diff] [blame] | 379 | ATA_HORKAGE_HPA_SIZE = (1 << 6), /* native size off by one */ |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 380 | ATA_HORKAGE_IPM = (1 << 7), /* Link PM problems */ |
Alan Cox | 6bbfd53 | 2007-11-05 22:58:58 +0000 | [diff] [blame] | 381 | ATA_HORKAGE_IVB = (1 << 8), /* cbl det validity bit bugs */ |
Albert Lee | 2d3b8ee | 2007-11-15 10:35:46 +0900 | [diff] [blame] | 382 | ATA_HORKAGE_STUCK_ERR = (1 << 9), /* stuck ERR on next PACKET */ |
Jens Axboe | 9ce8e30 | 2008-08-27 15:23:18 +0200 | [diff] [blame] | 383 | ATA_HORKAGE_BRIDGE_OK = (1 << 10), /* no bridge limits */ |
Tejun Heo | 6a87e42 | 2008-11-03 19:01:09 +0900 | [diff] [blame] | 384 | ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11), /* use ATAPI DMA for commands |
| 385 | not multiple of 16 bytes */ |
Nick Andrew | 877d031 | 2009-01-26 11:06:57 +0100 | [diff] [blame] | 386 | ATA_HORKAGE_FIRMWARE_WARN = (1 << 12), /* firmware update warning */ |
Tejun Heo | 9062712 | 2009-01-29 20:31:36 +0900 | [diff] [blame] | 387 | ATA_HORKAGE_1_5_GBPS = (1 << 13), /* force 1.5 Gbps */ |
Tejun Heo | d0cb43b | 2009-07-09 09:27:50 +0900 | [diff] [blame] | 388 | ATA_HORKAGE_NOSETXFER = (1 << 14), /* skip SETXFER, SATA only */ |
Shaohua Li | 388539f | 2009-07-27 09:24:35 +0800 | [diff] [blame] | 389 | ATA_HORKAGE_BROKEN_FPDMA_AA = (1 << 15), /* skip AA */ |
Tejun Heo | 43c9c59 | 2010-05-23 12:59:11 +0200 | [diff] [blame] | 390 | ATA_HORKAGE_DUMP_ID = (1 << 16), /* dump IDENTIFY data */ |
Alan Cox | b3a7060 | 2007-10-02 12:38:26 -0400 | [diff] [blame] | 391 | |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 392 | /* DMA mask for user DMA control: User visible values; DO NOT |
Alan Cox | b3a7060 | 2007-10-02 12:38:26 -0400 | [diff] [blame] | 393 | renumber */ |
| 394 | ATA_DMA_MASK_ATA = (1 << 0), /* DMA on ATA Disk */ |
| 395 | ATA_DMA_MASK_ATAPI = (1 << 1), /* DMA on ATAPI */ |
| 396 | ATA_DMA_MASK_CFA = (1 << 2), /* DMA on CF Card */ |
Tejun Heo | ceb0c64 | 2007-12-05 16:43:06 +0900 | [diff] [blame] | 397 | |
| 398 | /* ATAPI command types */ |
| 399 | ATAPI_READ = 0, /* READs */ |
| 400 | ATAPI_WRITE = 1, /* WRITEs */ |
| 401 | ATAPI_READ_CD = 2, /* READ CD [MSF] */ |
Tejun Heo | e52dcc4 | 2008-04-02 17:35:19 +0900 | [diff] [blame] | 402 | ATAPI_PASS_THRU = 3, /* SAT pass-thru */ |
| 403 | ATAPI_MISC = 4, /* the rest */ |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 404 | |
| 405 | /* Timing constants */ |
| 406 | ATA_TIMING_SETUP = (1 << 0), |
| 407 | ATA_TIMING_ACT8B = (1 << 1), |
| 408 | ATA_TIMING_REC8B = (1 << 2), |
| 409 | ATA_TIMING_CYC8B = (1 << 3), |
| 410 | ATA_TIMING_8BIT = ATA_TIMING_ACT8B | ATA_TIMING_REC8B | |
| 411 | ATA_TIMING_CYC8B, |
| 412 | ATA_TIMING_ACTIVE = (1 << 4), |
| 413 | ATA_TIMING_RECOVER = (1 << 5), |
David Daney | 3ada9c1 | 2009-01-15 17:45:31 -0800 | [diff] [blame] | 414 | ATA_TIMING_DMACK_HOLD = (1 << 6), |
| 415 | ATA_TIMING_CYCLE = (1 << 7), |
| 416 | ATA_TIMING_UDMA = (1 << 8), |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 417 | ATA_TIMING_ALL = ATA_TIMING_SETUP | ATA_TIMING_ACT8B | |
| 418 | ATA_TIMING_REC8B | ATA_TIMING_CYC8B | |
| 419 | ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER | |
David Daney | 3ada9c1 | 2009-01-15 17:45:31 -0800 | [diff] [blame] | 420 | ATA_TIMING_DMACK_HOLD | ATA_TIMING_CYCLE | |
| 421 | ATA_TIMING_UDMA, |
Tejun Heo | f1bce7f | 2009-09-16 04:16:04 +0900 | [diff] [blame] | 422 | |
| 423 | /* ACPI constants */ |
| 424 | ATA_ACPI_FILTER_SETXFER = 1 << 0, |
| 425 | ATA_ACPI_FILTER_LOCK = 1 << 1, |
| 426 | ATA_ACPI_FILTER_DIPM = 1 << 2, |
Tejun Heo | fa5b561 | 2009-09-16 04:17:02 +0900 | [diff] [blame] | 427 | ATA_ACPI_FILTER_FPDMA_OFFSET = 1 << 3, /* FPDMA non-zero offset */ |
| 428 | ATA_ACPI_FILTER_FPDMA_AA = 1 << 4, /* FPDMA auto activate */ |
Tejun Heo | f1bce7f | 2009-09-16 04:16:04 +0900 | [diff] [blame] | 429 | |
| 430 | ATA_ACPI_FILTER_DEFAULT = ATA_ACPI_FILTER_SETXFER | |
| 431 | ATA_ACPI_FILTER_LOCK | |
| 432 | ATA_ACPI_FILTER_DIPM, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | }; |
| 434 | |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 435 | enum ata_xfer_mask { |
| 436 | ATA_MASK_PIO = ((1LU << ATA_NR_PIO_MODES) - 1) |
| 437 | << ATA_SHIFT_PIO, |
| 438 | ATA_MASK_MWDMA = ((1LU << ATA_NR_MWDMA_MODES) - 1) |
| 439 | << ATA_SHIFT_MWDMA, |
| 440 | ATA_MASK_UDMA = ((1LU << ATA_NR_UDMA_MODES) - 1) |
| 441 | << ATA_SHIFT_UDMA, |
| 442 | }; |
| 443 | |
Albert Lee | 14be71f | 2005-09-27 17:36:35 +0800 | [diff] [blame] | 444 | enum hsm_task_states { |
Albert Lee | c56b14d2 | 2005-09-30 19:07:39 +0800 | [diff] [blame] | 445 | HSM_ST_IDLE, /* no command on going */ |
Albert Lee | 7152764 | 2007-04-02 11:28:52 +0800 | [diff] [blame] | 446 | HSM_ST_FIRST, /* (waiting the device to) |
| 447 | write CDB or first data block */ |
Albert Lee | c56b14d2 | 2005-09-30 19:07:39 +0800 | [diff] [blame] | 448 | HSM_ST, /* (waiting the device to) transfer data */ |
| 449 | HSM_ST_LAST, /* (waiting the device to) complete command */ |
Albert Lee | c56b14d2 | 2005-09-30 19:07:39 +0800 | [diff] [blame] | 450 | HSM_ST_ERR, /* error */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | }; |
| 452 | |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 453 | enum ata_completion_errors { |
Tejun Heo | 11a56d2 | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 454 | AC_ERR_DEV = (1 << 0), /* device reported error */ |
| 455 | AC_ERR_HSM = (1 << 1), /* host state machine violation */ |
| 456 | AC_ERR_TIMEOUT = (1 << 2), /* timeout */ |
| 457 | AC_ERR_MEDIA = (1 << 3), /* media error */ |
| 458 | AC_ERR_ATA_BUS = (1 << 4), /* ATA bus error */ |
| 459 | AC_ERR_HOST_BUS = (1 << 5), /* host bus error */ |
| 460 | AC_ERR_SYSTEM = (1 << 6), /* system error */ |
| 461 | AC_ERR_INVALID = (1 << 7), /* invalid argument */ |
| 462 | AC_ERR_OTHER = (1 << 8), /* unknown */ |
Tejun Heo | 55a8e2c | 2006-11-10 18:08:10 +0900 | [diff] [blame] | 463 | AC_ERR_NODEV_HINT = (1 << 9), /* polling device detection hint */ |
Tejun Heo | 5335b72 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 464 | AC_ERR_NCQ = (1 << 10), /* marker for offending NCQ qc */ |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 465 | }; |
| 466 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | /* forward declarations */ |
| 468 | struct scsi_device; |
| 469 | struct ata_port_operations; |
| 470 | struct ata_port; |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 471 | struct ata_link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | struct ata_queued_cmd; |
| 473 | |
| 474 | /* typedefs */ |
Tejun Heo | 77853bf | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 475 | typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc); |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 476 | typedef int (*ata_prereset_fn_t)(struct ata_link *link, unsigned long deadline); |
| 477 | 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] | 478 | unsigned long deadline); |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 479 | 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] | 480 | |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 481 | /* |
| 482 | * host pm policy: If you alter this, you also need to alter libata-scsi.c |
| 483 | * (for the ascii descriptions) |
| 484 | */ |
| 485 | enum link_pm { |
| 486 | NOT_AVAILABLE, |
| 487 | MIN_POWER, |
| 488 | MAX_PERFORMANCE, |
| 489 | MEDIUM_POWER, |
| 490 | }; |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 491 | extern struct device_attribute dev_attr_link_power_management_policy; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 492 | extern struct device_attribute dev_attr_unload_heads; |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 493 | extern struct device_attribute dev_attr_em_message_type; |
| 494 | extern struct device_attribute dev_attr_em_message; |
| 495 | extern struct device_attribute dev_attr_sw_activity; |
| 496 | |
| 497 | enum sw_activity { |
| 498 | OFF, |
| 499 | BLINK_ON, |
| 500 | BLINK_OFF, |
| 501 | }; |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 502 | |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 503 | #ifdef CONFIG_ATA_SFF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | struct ata_ioports { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 505 | void __iomem *cmd_addr; |
| 506 | void __iomem *data_addr; |
| 507 | void __iomem *error_addr; |
| 508 | void __iomem *feature_addr; |
| 509 | void __iomem *nsect_addr; |
| 510 | void __iomem *lbal_addr; |
| 511 | void __iomem *lbam_addr; |
| 512 | void __iomem *lbah_addr; |
| 513 | void __iomem *device_addr; |
| 514 | void __iomem *status_addr; |
| 515 | void __iomem *command_addr; |
| 516 | void __iomem *altstatus_addr; |
| 517 | void __iomem *ctl_addr; |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 518 | #ifdef CONFIG_ATA_BMDMA |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 519 | void __iomem *bmdma_addr; |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 520 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 521 | void __iomem *scr_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | }; |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 523 | #endif /* CONFIG_ATA_SFF */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 525 | struct ata_host { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | spinlock_t lock; |
| 527 | struct device *dev; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 528 | void __iomem * const *iomap; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | unsigned int n_ports; |
| 530 | void *private_data; |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 531 | struct ata_port_operations *ops; |
Alan Cox | 5444a6f | 2006-03-27 18:58:20 +0100 | [diff] [blame] | 532 | unsigned long flags; |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 533 | #ifdef CONFIG_ATA_ACPI |
| 534 | acpi_handle acpi_handle; |
| 535 | #endif |
Alan | 032af1c | 2007-03-01 17:36:46 +0000 | [diff] [blame] | 536 | struct ata_port *simplex_claimed; /* channel owning the DMA */ |
Tejun Heo | f0eb62b | 2006-06-12 23:05:38 +0900 | [diff] [blame] | 537 | struct ata_port *ports[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | }; |
| 539 | |
| 540 | struct ata_queued_cmd { |
| 541 | struct ata_port *ap; |
| 542 | struct ata_device *dev; |
| 543 | |
| 544 | struct scsi_cmnd *scsicmd; |
| 545 | void (*scsidone)(struct scsi_cmnd *); |
| 546 | |
| 547 | struct ata_taskfile tf; |
| 548 | u8 cdb[ATAPI_CDB_LEN]; |
| 549 | |
| 550 | unsigned long flags; /* ATA_QCFLAG_xxx */ |
| 551 | unsigned int tag; |
| 552 | unsigned int n_elem; |
FUJITA Tomonori | 5825627 | 2009-02-27 17:35:43 +0900 | [diff] [blame] | 553 | unsigned int orig_n_elem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | |
| 555 | int dma_dir; |
| 556 | |
Mark Lord | 5a5dbd1 | 2007-03-16 10:22:26 -0400 | [diff] [blame] | 557 | unsigned int sect_size; |
Jeff Garzik | cedc9a4 | 2005-10-05 07:13:30 -0400 | [diff] [blame] | 558 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | unsigned int nbytes; |
Tejun Heo | aacda37 | 2008-03-18 17:47:43 +0900 | [diff] [blame] | 560 | unsigned int extrabytes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | unsigned int curbytes; |
| 562 | |
Jens Axboe | 8726021 | 2007-10-16 11:14:12 +0200 | [diff] [blame] | 563 | struct scatterlist *cursg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | unsigned int cursg_ofs; |
| 565 | |
| 566 | struct scatterlist sgent; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 568 | struct scatterlist *sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 570 | unsigned int err_mask; |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 571 | struct ata_taskfile result_tf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | ata_qc_cb_t complete_fn; |
| 573 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | void *private_data; |
Darrick J. Wong | 1c50dc8 | 2007-01-30 01:18:41 -0800 | [diff] [blame] | 575 | void *lldd_task; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | }; |
| 577 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 578 | struct ata_port_stats { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | unsigned long unhandled_irq; |
| 580 | unsigned long idle_irq; |
| 581 | unsigned long rw_reqbuf; |
| 582 | }; |
| 583 | |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 584 | struct ata_ering_entry { |
Tejun Heo | 3884f7b | 2007-11-27 19:28:56 +0900 | [diff] [blame] | 585 | unsigned int eflags; |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 586 | unsigned int err_mask; |
| 587 | u64 timestamp; |
| 588 | }; |
| 589 | |
| 590 | struct ata_ering { |
| 591 | int cursor; |
| 592 | struct ata_ering_entry ring[ATA_ERING_SIZE]; |
| 593 | }; |
| 594 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | struct ata_device { |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 596 | struct ata_link *link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | unsigned int devno; /* 0 or 1 */ |
Tejun Heo | 75683fe | 2007-07-05 13:31:27 +0900 | [diff] [blame] | 598 | unsigned int horkage; /* List of broken features */ |
Richard Kennedy | 6866e7b | 2008-09-22 14:47:13 -0700 | [diff] [blame] | 599 | unsigned long flags; /* ATA_DFLAG_xxx */ |
Tejun Heo | 3edebac | 2006-05-31 18:27:40 +0900 | [diff] [blame] | 600 | struct scsi_device *sdev; /* attached SCSI device */ |
Bartlomiej Zolnierkiewicz | 95514fd | 2009-11-25 18:12:48 +0100 | [diff] [blame] | 601 | void *private_data; |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 602 | #ifdef CONFIG_ATA_ACPI |
| 603 | acpi_handle acpi_handle; |
Tejun Heo | 398e078 | 2007-12-15 15:05:03 +0900 | [diff] [blame] | 604 | union acpi_object *gtf_cache; |
Tejun Heo | 110f66d | 2009-09-16 04:17:28 +0900 | [diff] [blame] | 605 | unsigned int gtf_filter; |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 606 | #endif |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 607 | /* n_sector is CLEAR_BEGIN, read comment above CLEAR_BEGIN */ |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 608 | u64 n_sectors; /* size of device, if ATA */ |
Tejun Heo | 5920dad | 2009-07-15 17:11:41 +0900 | [diff] [blame] | 609 | u64 n_native_sectors; /* native size, if ATA */ |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 610 | unsigned int class; /* ATA_DEV_xxx */ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 611 | unsigned long unpark_deadline; |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 612 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | u8 pio_mode; |
| 614 | u8 dma_mode; |
| 615 | u8 xfer_mode; |
| 616 | unsigned int xfer_shift; /* ATA_SHIFT_xxx */ |
| 617 | |
Albert Lee | 8cbd6df | 2005-10-12 15:06:27 +0800 | [diff] [blame] | 618 | unsigned int multi_count; /* sectors count for |
| 619 | READ/WRITE MULTIPLE */ |
Tejun Heo | b00eec1 | 2006-02-12 23:32:59 +0900 | [diff] [blame] | 620 | unsigned int max_sectors; /* per-device max sectors */ |
Tejun Heo | 6e7846e | 2006-02-12 23:32:58 +0900 | [diff] [blame] | 621 | unsigned int cdb_len; |
Albert Lee | 8bf62ece | 2005-05-12 15:29:42 -0400 | [diff] [blame] | 622 | |
Tejun Heo | acf356b | 2006-03-24 14:07:50 +0900 | [diff] [blame] | 623 | /* per-dev xfer mask */ |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 624 | unsigned long pio_mask; |
| 625 | unsigned long mwdma_mask; |
| 626 | unsigned long udma_mask; |
Tejun Heo | acf356b | 2006-03-24 14:07:50 +0900 | [diff] [blame] | 627 | |
Albert Lee | 8bf62ece | 2005-05-12 15:29:42 -0400 | [diff] [blame] | 628 | /* for CHS addressing */ |
| 629 | u16 cylinders; /* Number of cylinders */ |
| 630 | u16 heads; /* Number of heads */ |
| 631 | u16 sectors; /* Number of sectors per track */ |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 632 | |
Jeff Garzik | f7e9893 | 2008-04-29 17:47:34 -0400 | [diff] [blame] | 633 | union { |
| 634 | u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */ |
| 635 | u32 gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */ |
| 636 | }; |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 637 | |
| 638 | /* error history */ |
| 639 | int spdn_cnt; |
| 640 | /* ering is CLEAR_END, read comment above CLEAR_END */ |
| 641 | struct ata_ering ering; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | }; |
| 643 | |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 644 | /* Fields between ATA_DEVICE_CLEAR_BEGIN and ATA_DEVICE_CLEAR_END are |
| 645 | * cleared to zero on ata_dev_init(). |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 646 | */ |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 647 | #define ATA_DEVICE_CLEAR_BEGIN offsetof(struct ata_device, n_sectors) |
| 648 | #define ATA_DEVICE_CLEAR_END offsetof(struct ata_device, ering) |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 649 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 650 | struct ata_eh_info { |
| 651 | struct ata_device *dev; /* offending device */ |
| 652 | u32 serror; /* SError from LLDD */ |
| 653 | unsigned int err_mask; /* port-wide err_mask */ |
| 654 | unsigned int action; /* ATA_EH_* action mask */ |
Tejun Heo | 47005f2 | 2006-06-19 18:27:23 +0900 | [diff] [blame] | 655 | unsigned int dev_action[ATA_MAX_DEVICES]; /* dev EH action */ |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 656 | unsigned int flags; /* ATA_EHI_* flags */ |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 657 | |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 658 | unsigned int probe_mask; |
| 659 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 660 | char desc[ATA_EH_DESC_LEN]; |
| 661 | int desc_len; |
| 662 | }; |
| 663 | |
| 664 | struct ata_eh_context { |
| 665 | struct ata_eh_info i; |
| 666 | int tries[ATA_MAX_DEVICES]; |
Tejun Heo | 87fbc5a | 2008-05-20 02:17:54 +0900 | [diff] [blame] | 667 | int cmd_timeout_idx[ATA_MAX_DEVICES] |
| 668 | [ATA_EH_CMD_TIMEOUT_TABLE_SIZE]; |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 669 | unsigned int classes[ATA_MAX_DEVICES]; |
| 670 | unsigned int did_probe_mask; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 671 | unsigned int unloaded_mask; |
Tejun Heo | 00115e0 | 2007-11-27 19:28:58 +0900 | [diff] [blame] | 672 | unsigned int saved_ncq_enabled; |
| 673 | u8 saved_xfer_mode[ATA_MAX_DEVICES]; |
Tejun Heo | 0a2c0f5 | 2008-05-20 02:17:52 +0900 | [diff] [blame] | 674 | /* timestamp for the last reset attempt or success */ |
| 675 | unsigned long last_reset; |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 676 | }; |
| 677 | |
Tejun Heo | 64578a3 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 678 | struct ata_acpi_drive |
| 679 | { |
| 680 | u32 pio; |
| 681 | u32 dma; |
| 682 | } __packed; |
| 683 | |
| 684 | struct ata_acpi_gtm { |
| 685 | struct ata_acpi_drive drive[2]; |
| 686 | u32 flags; |
| 687 | } __packed; |
| 688 | |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 689 | struct ata_link { |
| 690 | struct ata_port *ap; |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 691 | int pmp; /* port multiplier port # */ |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 692 | |
| 693 | unsigned int active_tag; /* active tag on this link */ |
| 694 | u32 sactive; /* active NCQ commands */ |
| 695 | |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 696 | unsigned int flags; /* ATA_LFLAG_xxx */ |
| 697 | |
Tejun Heo | d127ea7 | 2008-07-31 16:09:34 +0900 | [diff] [blame] | 698 | u32 saved_scontrol; /* SControl on probe */ |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 699 | unsigned int hw_sata_spd_limit; |
| 700 | unsigned int sata_spd_limit; |
| 701 | unsigned int sata_spd; /* current SATA PHY speed */ |
| 702 | |
| 703 | /* record runtime error info, protected by host_set lock */ |
| 704 | struct ata_eh_info eh_info; |
| 705 | /* EH context */ |
| 706 | struct ata_eh_context eh_context; |
| 707 | |
| 708 | struct ata_device device[ATA_MAX_DEVICES]; |
| 709 | }; |
| 710 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | struct ata_port { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 712 | struct Scsi_Host *scsi_host; /* our co-allocated scsi host */ |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 713 | struct ata_port_operations *ops; |
Jeff Garzik | ba6a130 | 2006-06-22 23:46:10 -0400 | [diff] [blame] | 714 | spinlock_t *lock; |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 715 | /* Flags owned by the EH context. Only EH should touch these once the |
| 716 | port is active */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | unsigned long flags; /* ATA_FLAG_xxx */ |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 718 | /* Flags that change dynamically, protected by ap->lock */ |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 719 | unsigned int pflags; /* ATA_PFLAG_xxx */ |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 720 | unsigned int print_id; /* user visible unique port ID */ |
| 721 | unsigned int port_no; /* 0 based port no. inside the host */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 723 | #ifdef CONFIG_ATA_SFF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | u8 ctl; /* cache of ATA control register */ |
| 726 | u8 last_ctl; /* Cache last written value */ |
Gwendal Grignou | ea3c645 | 2010-08-31 16:20:36 -0700 | [diff] [blame] | 727 | struct ata_link* sff_pio_task_link; /* link currently used */ |
Tejun Heo | c429137 | 2010-05-10 21:41:38 +0200 | [diff] [blame] | 728 | struct delayed_work sff_pio_task; |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 729 | #ifdef CONFIG_ATA_BMDMA |
Tejun Heo | f60d701 | 2010-05-10 21:41:41 +0200 | [diff] [blame] | 730 | struct ata_bmdma_prd *bmdma_prd; /* BMDMA SG list */ |
| 731 | dma_addr_t bmdma_prd_dma; /* and its DMA mapping */ |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 732 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 5fe7454 | 2010-05-10 21:41:37 +0200 | [diff] [blame] | 733 | #endif /* CONFIG_ATA_SFF */ |
| 734 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | unsigned int pio_mask; |
| 736 | unsigned int mwdma_mask; |
| 737 | unsigned int udma_mask; |
| 738 | unsigned int cbl; /* cable type; ATA_CBL_xxx */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | |
| 740 | struct ata_queued_cmd qcmd[ATA_MAX_QUEUE]; |
Tejun Heo | 8a8bc22 | 2008-11-10 14:48:21 +0900 | [diff] [blame] | 741 | unsigned long qc_allocated; |
Tejun Heo | dedaf2b | 2006-05-15 21:03:43 +0900 | [diff] [blame] | 742 | unsigned int qc_active; |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 743 | int nr_active_links; /* #links with active qcs */ |
Tejun Heo | dedaf2b | 2006-05-15 21:03:43 +0900 | [diff] [blame] | 744 | |
Tejun Heo | b1c7291 | 2008-07-31 17:02:43 +0900 | [diff] [blame] | 745 | struct ata_link link; /* host default link */ |
| 746 | struct ata_link *slave_link; /* see ata_slave_link_init() */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 747 | |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 748 | int nr_pmp_links; /* nr of available PMP links */ |
| 749 | struct ata_link *pmp_link; /* array of PMP links */ |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 750 | struct ata_link *excl_link; /* for PMP qc exclusion */ |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 751 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 752 | struct ata_port_stats stats; |
| 753 | struct ata_host *host; |
Brian King | 2f1f610 | 2006-03-23 17:30:15 -0600 | [diff] [blame] | 754 | struct device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | |
Tejun Heo | ad72cf9 | 2010-07-02 10:03:52 +0200 | [diff] [blame] | 756 | struct mutex scsi_scan_mutex; |
David Howells | 52bad64 | 2006-11-22 14:54:01 +0000 | [diff] [blame] | 757 | struct delayed_work hotplug_task; |
Jeff Garzik | 3b01b8a | 2006-06-12 00:22:04 -0400 | [diff] [blame] | 758 | struct work_struct scsi_rescan_task; |
Tejun Heo | 86e45b6 | 2006-03-05 15:29:09 +0900 | [diff] [blame] | 759 | |
Albert Lee | 14be71f | 2005-09-27 17:36:35 +0800 | [diff] [blame] | 760 | unsigned int hsm_task_state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 762 | u32 msg_enable; |
Tejun Heo | a72ec4c | 2006-01-23 13:09:37 +0900 | [diff] [blame] | 763 | struct list_head eh_done_q; |
Tejun Heo | c6cf9e9 | 2006-05-31 18:27:27 +0900 | [diff] [blame] | 764 | wait_queue_head_t eh_wait_q; |
Tejun Heo | a1e10f7 | 2007-08-18 13:28:49 +0900 | [diff] [blame] | 765 | int eh_tries; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 766 | struct completion park_req_pending; |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 767 | |
Tejun Heo | 500530f | 2006-07-03 16:07:27 +0900 | [diff] [blame] | 768 | pm_message_t pm_mesg; |
| 769 | int *pm_result; |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 770 | enum link_pm pm_policy; |
Tejun Heo | 500530f | 2006-07-03 16:07:27 +0900 | [diff] [blame] | 771 | |
Tejun Heo | 5ddf24c | 2007-07-16 14:29:41 +0900 | [diff] [blame] | 772 | struct timer_list fastdrain_timer; |
| 773 | unsigned long fastdrain_cnt; |
| 774 | |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 775 | int em_message_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | void *private_data; |
Tejun Heo | fe635c7 | 2006-05-15 20:57:35 +0900 | [diff] [blame] | 777 | |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 778 | #ifdef CONFIG_ATA_ACPI |
| 779 | acpi_handle acpi_handle; |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 780 | struct ata_acpi_gtm __acpi_init_gtm; /* use ata_acpi_init_gtm() */ |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 781 | #endif |
Tejun Heo | 84bda12 | 2009-03-02 18:53:26 +0900 | [diff] [blame] | 782 | /* owned by EH */ |
| 783 | u8 sector_buf[ATA_SECT_SIZE] ____cacheline_aligned; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | }; |
| 785 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 786 | /* The following initializer overrides a method to NULL whether one of |
| 787 | * its parent has the method defined or not. This is equivalent to |
| 788 | * ERR_PTR(-ENOENT). Unfortunately, ERR_PTR doesn't render a constant |
| 789 | * expression and thus can't be used as an initializer. |
| 790 | */ |
| 791 | #define ATA_OP_NULL (void *)(unsigned long)(-ENOENT) |
| 792 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | struct ata_port_operations { |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 794 | /* |
| 795 | * Command execution |
| 796 | */ |
| 797 | int (*qc_defer)(struct ata_queued_cmd *qc); |
| 798 | int (*check_atapi_dma)(struct ata_queued_cmd *qc); |
| 799 | void (*qc_prep)(struct ata_queued_cmd *qc); |
| 800 | unsigned int (*qc_issue)(struct ata_queued_cmd *qc); |
Tejun Heo | 22183bf | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 801 | bool (*qc_fill_rtf)(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 803 | /* |
| 804 | * Configuration and exception handling |
| 805 | */ |
| 806 | int (*cable_detect)(struct ata_port *ap); |
| 807 | unsigned long (*mode_filter)(struct ata_device *dev, unsigned long xfer_mask); |
| 808 | void (*set_piomode)(struct ata_port *ap, struct ata_device *dev); |
| 809 | void (*set_dmamode)(struct ata_port *ap, struct ata_device *dev); |
| 810 | 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] | 811 | 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] | 812 | |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 813 | void (*dev_config)(struct ata_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 815 | void (*freeze)(struct ata_port *ap); |
| 816 | void (*thaw)(struct ata_port *ap); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 817 | ata_prereset_fn_t prereset; |
| 818 | ata_reset_fn_t softreset; |
| 819 | ata_reset_fn_t hardreset; |
| 820 | ata_postreset_fn_t postreset; |
| 821 | ata_prereset_fn_t pmp_prereset; |
| 822 | ata_reset_fn_t pmp_softreset; |
| 823 | ata_reset_fn_t pmp_hardreset; |
| 824 | ata_postreset_fn_t pmp_postreset; |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 825 | void (*error_handler)(struct ata_port *ap); |
Alan Cox | c96f173 | 2009-03-24 10:23:46 +0000 | [diff] [blame] | 826 | void (*lost_interrupt)(struct ata_port *ap); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 827 | void (*post_internal_cmd)(struct ata_queued_cmd *qc); |
| 828 | |
| 829 | /* |
| 830 | * Optional features |
| 831 | */ |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 832 | int (*scr_read)(struct ata_link *link, unsigned int sc_reg, u32 *val); |
| 833 | 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] | 834 | void (*pmp_attach)(struct ata_port *ap); |
| 835 | void (*pmp_detach)(struct ata_port *ap); |
| 836 | int (*enable_pm)(struct ata_port *ap, enum link_pm policy); |
| 837 | void (*disable_pm)(struct ata_port *ap); |
| 838 | |
| 839 | /* |
| 840 | * Start, stop, suspend and resume |
| 841 | */ |
| 842 | int (*port_suspend)(struct ata_port *ap, pm_message_t mesg); |
| 843 | int (*port_resume)(struct ata_port *ap); |
| 844 | int (*port_start)(struct ata_port *ap); |
| 845 | void (*port_stop)(struct ata_port *ap); |
| 846 | void (*host_stop)(struct ata_host *host); |
| 847 | |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 848 | #ifdef CONFIG_ATA_SFF |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 849 | /* |
| 850 | * SFF / taskfile oriented ops |
| 851 | */ |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 852 | void (*sff_dev_select)(struct ata_port *ap, unsigned int device); |
Sergei Shtylyov | 41dec29 | 2010-05-07 22:47:50 +0400 | [diff] [blame] | 853 | void (*sff_set_devctl)(struct ata_port *ap, u8 ctl); |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 854 | u8 (*sff_check_status)(struct ata_port *ap); |
| 855 | u8 (*sff_check_altstatus)(struct ata_port *ap); |
| 856 | void (*sff_tf_load)(struct ata_port *ap, const struct ata_taskfile *tf); |
| 857 | void (*sff_tf_read)(struct ata_port *ap, struct ata_taskfile *tf); |
| 858 | void (*sff_exec_command)(struct ata_port *ap, |
| 859 | const struct ata_taskfile *tf); |
| 860 | unsigned int (*sff_data_xfer)(struct ata_device *dev, |
| 861 | unsigned char *buf, unsigned int buflen, int rw); |
Sergei Shtylyov | e42a542 | 2010-05-07 22:49:02 +0400 | [diff] [blame] | 862 | void (*sff_irq_on)(struct ata_port *); |
Tejun Heo | 2794362 | 2010-01-19 10:49:19 +0900 | [diff] [blame] | 863 | bool (*sff_irq_check)(struct ata_port *); |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 864 | void (*sff_irq_clear)(struct ata_port *); |
Tejun Heo | 8244cd0 | 2010-05-10 21:41:36 +0200 | [diff] [blame] | 865 | void (*sff_drain_fifo)(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 867 | #ifdef CONFIG_ATA_BMDMA |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 868 | void (*bmdma_setup)(struct ata_queued_cmd *qc); |
| 869 | void (*bmdma_start)(struct ata_queued_cmd *qc); |
| 870 | void (*bmdma_stop)(struct ata_queued_cmd *qc); |
| 871 | u8 (*bmdma_status)(struct ata_port *ap); |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 872 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 873 | #endif /* CONFIG_ATA_SFF */ |
Tejun Heo | c19ba8a | 2006-01-24 17:05:22 +0900 | [diff] [blame] | 874 | |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 875 | ssize_t (*em_show)(struct ata_port *ap, char *buf); |
| 876 | ssize_t (*em_store)(struct ata_port *ap, const char *message, |
| 877 | size_t size); |
| 878 | ssize_t (*sw_activity_show)(struct ata_device *dev, char *buf); |
| 879 | ssize_t (*sw_activity_store)(struct ata_device *dev, |
| 880 | enum sw_activity val); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 881 | /* |
| 882 | * Obsolete |
Tejun Heo | 9ec957f | 2006-05-15 20:57:58 +0900 | [diff] [blame] | 883 | */ |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 884 | void (*phy_reset)(struct ata_port *ap); |
| 885 | void (*eng_timeout)(struct ata_port *ap); |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 886 | |
| 887 | /* |
| 888 | * ->inherits must be the last field and all the preceding |
| 889 | * fields must be pointers. |
| 890 | */ |
| 891 | const struct ata_port_operations *inherits; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | }; |
| 893 | |
| 894 | struct ata_port_info { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 895 | unsigned long flags; |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 896 | unsigned long link_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 897 | unsigned long pio_mask; |
| 898 | unsigned long mwdma_mask; |
| 899 | unsigned long udma_mask; |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 900 | struct ata_port_operations *port_ops; |
Alan Cox | e99f8b5 | 2005-11-08 14:09:44 +0000 | [diff] [blame] | 901 | void *private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | }; |
| 903 | |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 904 | struct ata_timing { |
| 905 | unsigned short mode; /* ATA mode */ |
| 906 | unsigned short setup; /* t1 */ |
| 907 | unsigned short act8b; /* t2 for 8-bit I/O */ |
| 908 | unsigned short rec8b; /* t2i for 8-bit I/O */ |
| 909 | unsigned short cyc8b; /* t0 for 8-bit I/O */ |
| 910 | unsigned short active; /* t2 or tD */ |
| 911 | unsigned short recover; /* t2i or tK */ |
David Daney | 3ada9c1 | 2009-01-15 17:45:31 -0800 | [diff] [blame] | 912 | unsigned short dmack_hold; /* tj */ |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 913 | unsigned short cycle; /* t0 */ |
| 914 | unsigned short udma; /* t2CYCTYP/2 */ |
| 915 | }; |
| 916 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 917 | /* |
| 918 | * Core layer - drivers/ata/libata-core.c |
| 919 | */ |
Tejun Heo | e9c8391 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 920 | extern const unsigned long sata_deb_timing_normal[]; |
| 921 | extern const unsigned long sata_deb_timing_hotplug[]; |
| 922 | extern const unsigned long sata_deb_timing_long[]; |
| 923 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 924 | extern struct ata_port_operations ata_dummy_port_ops; |
Tejun Heo | 21b0ad4 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 925 | extern const struct ata_port_info ata_dummy_port_info; |
Tejun Heo | dd5b06c | 2006-08-10 16:59:12 +0900 | [diff] [blame] | 926 | |
Tejun Heo | e9c8391 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 927 | static inline const unsigned long * |
| 928 | sata_ehc_deb_timing(struct ata_eh_context *ehc) |
| 929 | { |
| 930 | if (ehc->i.flags & ATA_EHI_HOTPLUGGED) |
| 931 | return sata_deb_timing_hotplug; |
| 932 | else |
| 933 | return sata_deb_timing_normal; |
| 934 | } |
Tejun Heo | d7bb4cc | 2006-05-31 18:27:46 +0900 | [diff] [blame] | 935 | |
Tejun Heo | dd5b06c | 2006-08-10 16:59:12 +0900 | [diff] [blame] | 936 | static inline int ata_port_is_dummy(struct ata_port *ap) |
| 937 | { |
| 938 | return ap->ops == &ata_dummy_port_ops; |
| 939 | } |
| 940 | |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 941 | extern int sata_set_spd(struct ata_link *link); |
Tejun Heo | 0aa1113 | 2008-04-07 22:47:18 +0900 | [diff] [blame] | 942 | extern int ata_std_prereset(struct ata_link *link, unsigned long deadline); |
Tejun Heo | aa2731a | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 943 | extern int ata_wait_after_reset(struct ata_link *link, unsigned long deadline, |
| 944 | int (*check_ready)(struct ata_link *link)); |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 945 | extern int sata_link_debounce(struct ata_link *link, |
| 946 | const unsigned long *params, unsigned long deadline); |
| 947 | extern int sata_link_resume(struct ata_link *link, const unsigned long *params, |
| 948 | unsigned long deadline); |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 949 | extern int sata_link_hardreset(struct ata_link *link, |
Tejun Heo | 9dadd45 | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 950 | const unsigned long *timing, unsigned long deadline, |
| 951 | bool *online, int (*check_ready)(struct ata_link *)); |
Tejun Heo | 57c9efd | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 952 | extern int sata_std_hardreset(struct ata_link *link, unsigned int *class, |
| 953 | unsigned long deadline); |
Tejun Heo | 203c75b | 2008-04-07 22:47:18 +0900 | [diff] [blame] | 954 | extern void ata_std_postreset(struct ata_link *link, unsigned int *classes); |
Jeff Garzik | 2855568 | 2007-10-11 17:12:35 -0400 | [diff] [blame] | 955 | |
Tejun Heo | f318719 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 956 | 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] | 957 | extern struct ata_host *ata_host_alloc_pinfo(struct device *dev, |
| 958 | const struct ata_port_info * const * ppi, int n_ports); |
Tejun Heo | b1c7291 | 2008-07-31 17:02:43 +0900 | [diff] [blame] | 959 | extern int ata_slave_link_init(struct ata_port *ap); |
Tejun Heo | ecef725 | 2007-04-17 23:44:06 +0900 | [diff] [blame] | 960 | extern int ata_host_start(struct ata_host *host); |
Tejun Heo | f318719 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 961 | extern int ata_host_register(struct ata_host *host, |
| 962 | struct scsi_host_template *sht); |
Tejun Heo | f5cda25 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 963 | extern int ata_host_activate(struct ata_host *host, int irq, |
| 964 | irq_handler_t irq_handler, unsigned long irq_flags, |
| 965 | struct scsi_host_template *sht); |
Tejun Heo | 0529c15 | 2007-01-20 16:00:26 +0900 | [diff] [blame] | 966 | extern void ata_host_detach(struct ata_host *host); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 967 | extern void ata_host_init(struct ata_host *, struct device *, |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 968 | unsigned long, struct ata_port_operations *); |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 969 | extern int ata_scsi_detect(struct scsi_host_template *sht); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg); |
| 971 | extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)); |
Jeff Garzik | 94be9a5 | 2009-01-16 10:17:09 -0500 | [diff] [blame] | 972 | extern int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *dev, |
| 973 | int cmd, void __user *arg); |
Brian King | 8028916 | 2006-08-07 14:27:31 -0500 | [diff] [blame] | 974 | extern void ata_sas_port_destroy(struct ata_port *); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 975 | extern struct ata_port *ata_sas_port_alloc(struct ata_host *, |
Brian King | 8028916 | 2006-08-07 14:27:31 -0500 | [diff] [blame] | 976 | struct ata_port_info *, struct Scsi_Host *); |
| 977 | extern int ata_sas_port_init(struct ata_port *); |
| 978 | extern int ata_sas_port_start(struct ata_port *ap); |
| 979 | extern void ata_sas_port_stop(struct ata_port *ap); |
| 980 | extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *); |
| 981 | extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), |
| 982 | struct ata_port *ap); |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 983 | extern int sata_scr_valid(struct ata_link *link); |
| 984 | extern int sata_scr_read(struct ata_link *link, int reg, u32 *val); |
| 985 | extern int sata_scr_write(struct ata_link *link, int reg, u32 val); |
| 986 | 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] | 987 | extern bool ata_link_online(struct ata_link *link); |
| 988 | extern bool ata_link_offline(struct ata_link *link); |
Tejun Heo | 6ffa01d | 2007-03-02 17:32:47 +0900 | [diff] [blame] | 989 | #ifdef CONFIG_PM |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 990 | extern int ata_host_suspend(struct ata_host *host, pm_message_t mesg); |
| 991 | extern void ata_host_resume(struct ata_host *host); |
Tejun Heo | 6ffa01d | 2007-03-02 17:32:47 +0900 | [diff] [blame] | 992 | #endif |
Jeff Garzik | 67846b3 | 2005-10-05 02:58:32 -0400 | [diff] [blame] | 993 | extern int ata_ratelimit(void); |
Tejun Heo | c22daff | 2006-04-11 22:22:29 +0900 | [diff] [blame] | 994 | extern u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val, |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 995 | unsigned long interval, unsigned long timeout); |
Tejun Heo | 436d34b | 2008-04-02 17:28:46 +0900 | [diff] [blame] | 996 | extern int atapi_cmd_type(u8 opcode); |
Tejun Heo | 9977126 | 2007-07-16 14:29:38 +0900 | [diff] [blame] | 997 | extern void ata_tf_to_fis(const struct ata_taskfile *tf, |
| 998 | u8 pmp, int is_cmd, u8 *fis); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 999 | 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] | 1000 | extern unsigned long ata_pack_xfermask(unsigned long pio_mask, |
| 1001 | unsigned long mwdma_mask, unsigned long udma_mask); |
| 1002 | extern void ata_unpack_xfermask(unsigned long xfer_mask, |
| 1003 | unsigned long *pio_mask, unsigned long *mwdma_mask, |
| 1004 | unsigned long *udma_mask); |
| 1005 | extern u8 ata_xfer_mask2mode(unsigned long xfer_mask); |
| 1006 | extern unsigned long ata_xfer_mode2mask(u8 xfer_mode); |
| 1007 | extern int ata_xfer_mode2shift(unsigned long xfer_mode); |
| 1008 | extern const char *ata_mode_string(unsigned long xfer_mask); |
| 1009 | extern unsigned long ata_id_xfermask(const u16 *id); |
Tejun Heo | 31cc23b | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1010 | extern int ata_std_qc_defer(struct ata_queued_cmd *qc); |
Brian King | e46834c | 2006-03-17 17:04:03 -0600 | [diff] [blame] | 1011 | extern void ata_noop_qc_prep(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg, |
| 1013 | unsigned int n_elem); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 1014 | extern unsigned int ata_dev_classify(const struct ata_taskfile *tf); |
Alan | 10305f0 | 2007-02-20 18:01:59 +0000 | [diff] [blame] | 1015 | extern void ata_dev_disable(struct ata_device *adev); |
Tejun Heo | 6a62a04 | 2006-02-13 10:02:46 +0900 | [diff] [blame] | 1016 | extern void ata_id_string(const u16 *id, unsigned char *s, |
| 1017 | unsigned int ofs, unsigned int len); |
| 1018 | extern void ata_id_c_string(const u16 *id, unsigned char *s, |
| 1019 | unsigned int ofs, unsigned int len); |
Alan Cox | 963e497 | 2008-07-24 17:16:06 +0100 | [diff] [blame] | 1020 | extern unsigned int ata_do_dev_read_id(struct ata_device *dev, |
| 1021 | struct ata_taskfile *tf, u16 *id); |
Tejun Heo | f686bcb | 2006-05-15 20:58:05 +0900 | [diff] [blame] | 1022 | extern void ata_qc_complete(struct ata_queued_cmd *qc); |
Tejun Heo | 79f97da | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 1023 | extern int ata_qc_complete_multiple(struct ata_port *ap, u32 qc_active); |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1024 | 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] | 1025 | void (*done)(struct scsi_cmnd *)); |
| 1026 | extern int ata_std_bios_param(struct scsi_device *sdev, |
| 1027 | struct block_device *bdev, |
| 1028 | sector_t capacity, int geom[]); |
Tejun Heo | d8d9129 | 2010-05-15 20:09:34 +0200 | [diff] [blame] | 1029 | extern void ata_scsi_unlock_native_capacity(struct scsi_device *sdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1030 | extern int ata_scsi_slave_config(struct scsi_device *sdev); |
Tejun Heo | 83c47bc | 2006-05-31 18:28:07 +0900 | [diff] [blame] | 1031 | extern void ata_scsi_slave_destroy(struct scsi_device *sdev); |
Tejun Heo | a6e6ce8 | 2006-05-15 21:03:48 +0900 | [diff] [blame] | 1032 | extern int ata_scsi_change_queue_depth(struct scsi_device *sdev, |
Mike Christie | e881a17 | 2009-10-15 17:46:39 -0700 | [diff] [blame] | 1033 | int queue_depth, int reason); |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1034 | extern struct ata_device *ata_dev_pair(struct ata_device *adev); |
Tejun Heo | 0260731 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1035 | extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | |
Alan Cox | be0d18d | 2007-03-06 02:37:56 -0800 | [diff] [blame] | 1037 | extern int ata_cable_40wire(struct ata_port *ap); |
| 1038 | extern int ata_cable_80wire(struct ata_port *ap); |
| 1039 | extern int ata_cable_sata(struct ata_port *ap); |
Tejun Heo | c88f90c | 2007-11-27 19:43:48 +0900 | [diff] [blame] | 1040 | extern int ata_cable_ignore(struct ata_port *ap); |
Alan Cox | be0d18d | 2007-03-06 02:37:56 -0800 | [diff] [blame] | 1041 | extern int ata_cable_unknown(struct ata_port *ap); |
| 1042 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1043 | /* Timing helpers */ |
Alan Cox | 1bc4ccf | 2006-01-09 17:18:14 +0000 | [diff] [blame] | 1044 | extern unsigned int ata_pio_need_iordy(const struct ata_device *); |
Tejun Heo | 6357357 | 2007-11-27 19:43:39 +0900 | [diff] [blame] | 1045 | extern const struct ata_timing *ata_timing_find_mode(u8 xfer_mode); |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1046 | extern int ata_timing_compute(struct ata_device *, unsigned short, |
| 1047 | struct ata_timing *, int, int); |
| 1048 | extern void ata_timing_merge(const struct ata_timing *, |
| 1049 | const struct ata_timing *, struct ata_timing *, |
| 1050 | unsigned int); |
Tejun Heo | a0f79b9 | 2007-12-18 16:33:05 +0900 | [diff] [blame] | 1051 | extern u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle); |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1052 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1053 | /* PCI */ |
| 1054 | #ifdef CONFIG_PCI |
| 1055 | struct pci_dev; |
| 1056 | |
| 1057 | struct pci_bits { |
| 1058 | unsigned int reg; /* PCI config register to read */ |
| 1059 | unsigned int width; /* 1 (8 bit), 2 (16 bit), 4 (32 bit) */ |
| 1060 | unsigned long mask; |
| 1061 | unsigned long val; |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1062 | }; |
| 1063 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1064 | extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits); |
| 1065 | extern void ata_pci_remove_one(struct pci_dev *pdev); |
| 1066 | |
| 1067 | #ifdef CONFIG_PM |
| 1068 | extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg); |
| 1069 | extern int __must_check ata_pci_device_do_resume(struct pci_dev *pdev); |
| 1070 | extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); |
| 1071 | extern int ata_pci_device_resume(struct pci_dev *pdev); |
| 1072 | #endif /* CONFIG_PM */ |
| 1073 | #endif /* CONFIG_PCI */ |
| 1074 | |
| 1075 | /* |
| 1076 | * ACPI - drivers/ata/libata-acpi.c |
| 1077 | */ |
Alan Cox | e1ddb4b | 2007-08-16 02:33:36 -0400 | [diff] [blame] | 1078 | #ifdef CONFIG_ATA_ACPI |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 1079 | static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) |
| 1080 | { |
| 1081 | if (ap->pflags & ATA_PFLAG_INIT_GTM_VALID) |
| 1082 | return &ap->__acpi_init_gtm; |
| 1083 | return NULL; |
| 1084 | } |
Tejun Heo | 0d02f0b | 2007-12-15 15:04:57 +0900 | [diff] [blame] | 1085 | int ata_acpi_stm(struct ata_port *ap, const struct ata_acpi_gtm *stm); |
| 1086 | 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] | 1087 | unsigned long ata_acpi_gtm_xfermask(struct ata_device *dev, |
| 1088 | const struct ata_acpi_gtm *gtm); |
Tejun Heo | 021ee9a | 2007-12-18 16:33:06 +0900 | [diff] [blame] | 1089 | 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] | 1090 | #else |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 1091 | static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) |
| 1092 | { |
| 1093 | return NULL; |
| 1094 | } |
Tejun Heo | 7c77fa4 | 2007-12-18 16:33:03 +0900 | [diff] [blame] | 1095 | |
| 1096 | static inline int ata_acpi_stm(const struct ata_port *ap, |
| 1097 | struct ata_acpi_gtm *stm) |
| 1098 | { |
| 1099 | return -ENOSYS; |
| 1100 | } |
| 1101 | |
| 1102 | static inline int ata_acpi_gtm(const struct ata_port *ap, |
| 1103 | struct ata_acpi_gtm *stm) |
| 1104 | { |
| 1105 | return -ENOSYS; |
| 1106 | } |
| 1107 | |
| 1108 | static inline unsigned int ata_acpi_gtm_xfermask(struct ata_device *dev, |
| 1109 | const struct ata_acpi_gtm *gtm) |
| 1110 | { |
| 1111 | return 0; |
| 1112 | } |
Tejun Heo | 021ee9a | 2007-12-18 16:33:06 +0900 | [diff] [blame] | 1113 | |
| 1114 | static inline int ata_acpi_cbl_80wire(struct ata_port *ap, |
| 1115 | const struct ata_acpi_gtm *gtm) |
| 1116 | { |
| 1117 | return 0; |
| 1118 | } |
Alan Cox | e1ddb4b | 2007-08-16 02:33:36 -0400 | [diff] [blame] | 1119 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1120 | |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1121 | /* |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1122 | * EH - drivers/ata/libata-eh.c |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1123 | */ |
Tejun Heo | 7b70fc0 | 2006-05-15 20:58:07 +0900 | [diff] [blame] | 1124 | extern void ata_port_schedule_eh(struct ata_port *ap); |
Tejun Heo | dbd8261 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1125 | extern int ata_link_abort(struct ata_link *link); |
Tejun Heo | 7b70fc0 | 2006-05-15 20:58:07 +0900 | [diff] [blame] | 1126 | extern int ata_port_abort(struct ata_port *ap); |
Tejun Heo | e318049 | 2006-05-15 20:58:09 +0900 | [diff] [blame] | 1127 | extern int ata_port_freeze(struct ata_port *ap); |
Tejun Heo | 7d77b24 | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 1128 | extern int sata_async_notification(struct ata_port *ap); |
Tejun Heo | e318049 | 2006-05-15 20:58:09 +0900 | [diff] [blame] | 1129 | |
| 1130 | extern void ata_eh_freeze_port(struct ata_port *ap); |
| 1131 | extern void ata_eh_thaw_port(struct ata_port *ap); |
Tejun Heo | 7b70fc0 | 2006-05-15 20:58:07 +0900 | [diff] [blame] | 1132 | |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1133 | extern void ata_eh_qc_complete(struct ata_queued_cmd *qc); |
| 1134 | extern void ata_eh_qc_retry(struct ata_queued_cmd *qc); |
Mark Lord | 10acf3b | 2008-05-02 02:14:53 -0400 | [diff] [blame] | 1135 | extern void ata_eh_analyze_ncq_error(struct ata_link *link); |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1136 | |
Tejun Heo | f5914a4 | 2006-05-31 18:27:48 +0900 | [diff] [blame] | 1137 | extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset, |
| 1138 | ata_reset_fn_t softreset, ata_reset_fn_t hardreset, |
| 1139 | ata_postreset_fn_t postreset); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 1140 | extern void ata_std_error_handler(struct ata_port *ap); |
Tejun Heo | 022bdb0 | 2006-05-15 20:58:22 +0900 | [diff] [blame] | 1141 | |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1142 | /* |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1143 | * Base operations to inherit from and initializers for sht |
| 1144 | * |
| 1145 | * Operations |
| 1146 | * |
| 1147 | * base : Common to all libata drivers. |
| 1148 | * sata : SATA controllers w/ native interface. |
| 1149 | * pmp : SATA controllers w/ PMP support. |
| 1150 | * sff : SFF ATA controllers w/o BMDMA support. |
| 1151 | * bmdma : SFF ATA controllers w/ BMDMA support. |
| 1152 | * |
| 1153 | * sht initializers |
| 1154 | * |
| 1155 | * BASE : Common to all libata drivers. The user must set |
| 1156 | * sg_tablesize and dma_boundary. |
| 1157 | * PIO : SFF ATA controllers w/ only PIO support. |
| 1158 | * BMDMA : SFF ATA controllers w/ BMDMA support. sg_tablesize and |
| 1159 | * dma_boundary are set to BMDMA limits. |
| 1160 | * NCQ : SATA controllers supporting NCQ. The user must set |
| 1161 | * sg_tablesize, dma_boundary and can_queue. |
| 1162 | */ |
| 1163 | extern const struct ata_port_operations ata_base_port_ops; |
| 1164 | extern const struct ata_port_operations sata_port_ops; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 1165 | extern struct device_attribute *ata_common_sdev_attrs[]; |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1166 | |
| 1167 | #define ATA_BASE_SHT(drv_name) \ |
| 1168 | .module = THIS_MODULE, \ |
| 1169 | .name = drv_name, \ |
| 1170 | .ioctl = ata_scsi_ioctl, \ |
| 1171 | .queuecommand = ata_scsi_queuecmd, \ |
| 1172 | .can_queue = ATA_DEF_QUEUE, \ |
| 1173 | .this_id = ATA_SHT_THIS_ID, \ |
| 1174 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, \ |
| 1175 | .emulated = ATA_SHT_EMULATED, \ |
| 1176 | .use_clustering = ATA_SHT_USE_CLUSTERING, \ |
| 1177 | .proc_name = drv_name, \ |
| 1178 | .slave_configure = ata_scsi_slave_config, \ |
| 1179 | .slave_destroy = ata_scsi_slave_destroy, \ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 1180 | .bios_param = ata_std_bios_param, \ |
Tejun Heo | d8d9129 | 2010-05-15 20:09:34 +0200 | [diff] [blame] | 1181 | .unlock_native_capacity = ata_scsi_unlock_native_capacity, \ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 1182 | .sdev_attrs = ata_common_sdev_attrs |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1183 | |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1184 | #define ATA_NCQ_SHT(drv_name) \ |
| 1185 | ATA_BASE_SHT(drv_name), \ |
| 1186 | .change_queue_depth = ata_scsi_change_queue_depth |
| 1187 | |
| 1188 | /* |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1189 | * PMP helpers |
| 1190 | */ |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1191 | #ifdef CONFIG_SATA_PMP |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1192 | static inline bool sata_pmp_supported(struct ata_port *ap) |
| 1193 | { |
| 1194 | return ap->flags & ATA_FLAG_PMP; |
| 1195 | } |
| 1196 | |
| 1197 | static inline bool sata_pmp_attached(struct ata_port *ap) |
| 1198 | { |
| 1199 | return ap->nr_pmp_links != 0; |
| 1200 | } |
| 1201 | |
| 1202 | static inline int ata_is_host_link(const struct ata_link *link) |
| 1203 | { |
Tejun Heo | b1c7291 | 2008-07-31 17:02:43 +0900 | [diff] [blame] | 1204 | return link == &link->ap->link || link == link->ap->slave_link; |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1205 | } |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1206 | #else /* CONFIG_SATA_PMP */ |
| 1207 | static inline bool sata_pmp_supported(struct ata_port *ap) |
| 1208 | { |
| 1209 | return false; |
| 1210 | } |
| 1211 | |
| 1212 | static inline bool sata_pmp_attached(struct ata_port *ap) |
| 1213 | { |
| 1214 | return false; |
| 1215 | } |
| 1216 | |
| 1217 | static inline int ata_is_host_link(const struct ata_link *link) |
| 1218 | { |
| 1219 | return 1; |
| 1220 | } |
| 1221 | #endif /* CONFIG_SATA_PMP */ |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1222 | |
| 1223 | static inline int sata_srst_pmp(struct ata_link *link) |
| 1224 | { |
| 1225 | if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) |
| 1226 | return SATA_PMP_CTRL_PORT; |
| 1227 | return link->pmp; |
| 1228 | } |
| 1229 | |
| 1230 | /* |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1231 | * printk helpers |
| 1232 | */ |
| 1233 | #define ata_port_printk(ap, lv, fmt, args...) \ |
Tejun Heo | c2e366a | 2007-12-15 15:04:58 +0900 | [diff] [blame] | 1234 | printk("%sata%u: "fmt, lv, (ap)->print_id , ##args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1235 | |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1236 | #define ata_link_printk(link, lv, fmt, args...) do { \ |
Tejun Heo | b1c7291 | 2008-07-31 17:02:43 +0900 | [diff] [blame] | 1237 | if (sata_pmp_attached((link)->ap) || (link)->ap->slave_link) \ |
Tejun Heo | c2e366a | 2007-12-15 15:04:58 +0900 | [diff] [blame] | 1238 | printk("%sata%u.%02u: "fmt, lv, (link)->ap->print_id, \ |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1239 | (link)->pmp , ##args); \ |
| 1240 | else \ |
Tejun Heo | c2e366a | 2007-12-15 15:04:58 +0900 | [diff] [blame] | 1241 | printk("%sata%u: "fmt, lv, (link)->ap->print_id , ##args); \ |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1242 | } while(0) |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 1243 | |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1244 | #define ata_dev_printk(dev, lv, fmt, args...) \ |
Tejun Heo | c2e366a | 2007-12-15 15:04:58 +0900 | [diff] [blame] | 1245 | printk("%sata%u.%02u: "fmt, lv, (dev)->link->ap->print_id, \ |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1246 | (dev)->link->pmp + (dev)->devno , ##args) |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1247 | |
| 1248 | /* |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 1249 | * ata_eh_info helpers |
| 1250 | */ |
Tejun Heo | cb94c1c | 2007-07-30 14:24:15 +0900 | [diff] [blame] | 1251 | extern void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...) |
| 1252 | __attribute__ ((format (printf, 2, 3))); |
| 1253 | extern void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...) |
| 1254 | __attribute__ ((format (printf, 2, 3))); |
Tejun Heo | b64bbc3 | 2007-07-16 14:29:39 +0900 | [diff] [blame] | 1255 | extern void ata_ehi_clear_desc(struct ata_eh_info *ehi); |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 1256 | |
Tejun Heo | c0b6c03 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 1257 | static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi) |
| 1258 | { |
Tejun Heo | b558edd | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 1259 | ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1; |
Tejun Heo | f8f1e1c | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 1260 | ehi->flags |= ATA_EHI_HOTPLUGGED; |
Tejun Heo | b558edd | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 1261 | ehi->action |= ATA_EH_RESET | ATA_EH_ENABLE_LINK; |
Tejun Heo | c0b6c03 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 1262 | ehi->err_mask |= AC_ERR_ATA_BUS; |
| 1263 | } |
| 1264 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 1265 | /* |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 1266 | * port description helpers |
| 1267 | */ |
| 1268 | extern void ata_port_desc(struct ata_port *ap, const char *fmt, ...) |
| 1269 | __attribute__ ((format (printf, 2, 3))); |
| 1270 | #ifdef CONFIG_PCI |
| 1271 | extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset, |
| 1272 | const char *name); |
| 1273 | #endif |
| 1274 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1275 | static inline unsigned int ata_tag_valid(unsigned int tag) |
| 1276 | { |
| 1277 | return (tag < ATA_MAX_QUEUE) ? 1 : 0; |
| 1278 | } |
| 1279 | |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 1280 | static inline unsigned int ata_tag_internal(unsigned int tag) |
| 1281 | { |
Yoichi Yuasa | 83c063d | 2008-02-28 21:43:13 +0900 | [diff] [blame] | 1282 | return tag == ATA_TAG_INTERNAL; |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 1283 | } |
| 1284 | |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1285 | /* |
| 1286 | * device helpers |
| 1287 | */ |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1288 | static inline unsigned int ata_class_enabled(unsigned int class) |
Tejun Heo | 597afd2 | 2006-03-01 01:25:38 +0900 | [diff] [blame] | 1289 | { |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1290 | return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI || |
| 1291 | class == ATA_DEV_PMP || class == ATA_DEV_SEMB; |
Tejun Heo | 597afd2 | 2006-03-01 01:25:38 +0900 | [diff] [blame] | 1292 | } |
| 1293 | |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1294 | static inline unsigned int ata_class_disabled(unsigned int class) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | { |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1296 | return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP || |
| 1297 | class == ATA_DEV_PMP_UNSUP || class == ATA_DEV_SEMB_UNSUP; |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1298 | } |
| 1299 | |
Tejun Heo | 002c805 | 2006-04-02 17:54:46 +0900 | [diff] [blame] | 1300 | static inline unsigned int ata_class_absent(unsigned int class) |
| 1301 | { |
| 1302 | return !ata_class_enabled(class) && !ata_class_disabled(class); |
| 1303 | } |
| 1304 | |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1305 | static inline unsigned int ata_dev_enabled(const struct ata_device *dev) |
| 1306 | { |
| 1307 | return ata_class_enabled(dev->class); |
| 1308 | } |
| 1309 | |
| 1310 | static inline unsigned int ata_dev_disabled(const struct ata_device *dev) |
| 1311 | { |
| 1312 | return ata_class_disabled(dev->class); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1313 | } |
| 1314 | |
Tejun Heo | 002c805 | 2006-04-02 17:54:46 +0900 | [diff] [blame] | 1315 | static inline unsigned int ata_dev_absent(const struct ata_device *dev) |
| 1316 | { |
| 1317 | return ata_class_absent(dev->class); |
| 1318 | } |
| 1319 | |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1320 | /* |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1321 | * link helpers |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1322 | */ |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1323 | static inline int ata_link_max_devices(const struct ata_link *link) |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1324 | { |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1325 | 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] | 1326 | return 2; |
| 1327 | return 1; |
| 1328 | } |
| 1329 | |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1330 | static inline int ata_link_active(struct ata_link *link) |
| 1331 | { |
| 1332 | return ata_tag_valid(link->active_tag) || link->sactive; |
| 1333 | } |
| 1334 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1335 | /* |
| 1336 | * Iterators |
| 1337 | * |
| 1338 | * ATA_LITER_* constants are used to select link iteration mode and |
| 1339 | * ATA_DITER_* device iteration mode. |
| 1340 | * |
| 1341 | * For a custom iteration directly using ata_{link|dev}_next(), if |
| 1342 | * @link or @dev, respectively, is NULL, the first element is |
| 1343 | * returned. @dev and @link can be any valid device or link and the |
| 1344 | * next element according to the iteration mode will be returned. |
| 1345 | * After the last element, NULL is returned. |
| 1346 | */ |
| 1347 | enum ata_link_iter_mode { |
| 1348 | ATA_LITER_EDGE, /* if present, PMP links only; otherwise, |
| 1349 | * host link. no slave link */ |
| 1350 | ATA_LITER_HOST_FIRST, /* host link followed by PMP or slave links */ |
| 1351 | ATA_LITER_PMP_FIRST, /* PMP links followed by host link, |
| 1352 | * slave link still comes after host link */ |
| 1353 | }; |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1354 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1355 | enum ata_dev_iter_mode { |
| 1356 | ATA_DITER_ENABLED, |
| 1357 | ATA_DITER_ENABLED_REVERSE, |
| 1358 | ATA_DITER_ALL, |
| 1359 | ATA_DITER_ALL_REVERSE, |
| 1360 | }; |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1361 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1362 | extern struct ata_link *ata_link_next(struct ata_link *link, |
| 1363 | struct ata_port *ap, |
| 1364 | enum ata_link_iter_mode mode); |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1365 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1366 | extern struct ata_device *ata_dev_next(struct ata_device *dev, |
| 1367 | struct ata_link *link, |
| 1368 | enum ata_dev_iter_mode mode); |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1369 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1370 | /* |
| 1371 | * Shortcut notation for iterations |
| 1372 | * |
| 1373 | * ata_for_each_link() iterates over each link of @ap according to |
| 1374 | * @mode. @link points to the current link in the loop. @link is |
| 1375 | * NULL after loop termination. ata_for_each_dev() works the same way |
| 1376 | * except that it iterates over each device of @link. |
| 1377 | * |
| 1378 | * Note that the mode prefixes ATA_{L|D}ITER_ shouldn't need to be |
| 1379 | * specified when using the following shorthand notations. Only the |
| 1380 | * mode itself (EDGE, HOST_FIRST, ENABLED, etc...) should be |
| 1381 | * specified. This not only increases brevity but also makes it |
| 1382 | * impossible to use ATA_LITER_* for device iteration or vice-versa. |
| 1383 | */ |
| 1384 | #define ata_for_each_link(link, ap, mode) \ |
| 1385 | for ((link) = ata_link_next(NULL, (ap), ATA_LITER_##mode); (link); \ |
| 1386 | (link) = ata_link_next((link), (ap), ATA_LITER_##mode)) |
| 1387 | |
| 1388 | #define ata_for_each_dev(dev, link, mode) \ |
| 1389 | for ((dev) = ata_dev_next(NULL, (link), ATA_DITER_##mode); (dev); \ |
| 1390 | (dev) = ata_dev_next((dev), (link), ATA_DITER_##mode)) |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1391 | |
Tejun Heo | 6d1245b | 2007-02-20 23:20:27 +0900 | [diff] [blame] | 1392 | /** |
| 1393 | * ata_ncq_enabled - Test whether NCQ is enabled |
| 1394 | * @dev: ATA device to test for |
| 1395 | * |
| 1396 | * LOCKING: |
| 1397 | * spin_lock_irqsave(host lock) |
| 1398 | * |
| 1399 | * RETURNS: |
| 1400 | * 1 if NCQ is enabled for @dev, 0 otherwise. |
| 1401 | */ |
| 1402 | static inline int ata_ncq_enabled(struct ata_device *dev) |
| 1403 | { |
| 1404 | return (dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF | |
| 1405 | ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ; |
| 1406 | } |
Edward Falk | 0baab86 | 2005-06-02 18:17:13 -0400 | [diff] [blame] | 1407 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1408 | static inline void ata_qc_set_polling(struct ata_queued_cmd *qc) |
| 1409 | { |
| 1410 | qc->tf.ctl |= ATA_NIEN; |
| 1411 | } |
| 1412 | |
Tejun Heo | f69499f | 2006-05-15 20:58:03 +0900 | [diff] [blame] | 1413 | static inline struct ata_queued_cmd *__ata_qc_from_tag(struct ata_port *ap, |
| 1414 | unsigned int tag) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1415 | { |
| 1416 | if (likely(ata_tag_valid(tag))) |
| 1417 | return &ap->qcmd[tag]; |
| 1418 | return NULL; |
| 1419 | } |
| 1420 | |
Tejun Heo | f69499f | 2006-05-15 20:58:03 +0900 | [diff] [blame] | 1421 | static inline struct ata_queued_cmd *ata_qc_from_tag(struct ata_port *ap, |
| 1422 | unsigned int tag) |
| 1423 | { |
| 1424 | struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag); |
| 1425 | |
| 1426 | if (unlikely(!qc) || !ap->ops->error_handler) |
| 1427 | return qc; |
| 1428 | |
| 1429 | if ((qc->flags & (ATA_QCFLAG_ACTIVE | |
| 1430 | ATA_QCFLAG_FAILED)) == ATA_QCFLAG_ACTIVE) |
| 1431 | return qc; |
| 1432 | |
| 1433 | return NULL; |
| 1434 | } |
| 1435 | |
Tejun Heo | aacda37 | 2008-03-18 17:47:43 +0900 | [diff] [blame] | 1436 | static inline unsigned int ata_qc_raw_nbytes(struct ata_queued_cmd *qc) |
| 1437 | { |
| 1438 | return qc->nbytes - min(qc->extrabytes, qc->nbytes); |
| 1439 | } |
| 1440 | |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1441 | 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] | 1442 | { |
| 1443 | memset(tf, 0, sizeof(*tf)); |
| 1444 | |
Tejun Heo | 5fe7454 | 2010-05-10 21:41:37 +0200 | [diff] [blame] | 1445 | #ifdef CONFIG_ATA_SFF |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 1446 | tf->ctl = dev->link->ap->ctl; |
Tejun Heo | 5fe7454 | 2010-05-10 21:41:37 +0200 | [diff] [blame] | 1447 | #else |
| 1448 | tf->ctl = ATA_DEVCTL_OBS; |
| 1449 | #endif |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1450 | if (dev->devno == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1451 | tf->device = ATA_DEVICE_OBS; |
| 1452 | else |
| 1453 | tf->device = ATA_DEVICE_OBS | ATA_DEV1; |
| 1454 | } |
| 1455 | |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1456 | static inline void ata_qc_reinit(struct ata_queued_cmd *qc) |
| 1457 | { |
Tejun Heo | 501e0c50 | 2007-01-17 11:34:02 +0900 | [diff] [blame] | 1458 | qc->dma_dir = DMA_NONE; |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 1459 | qc->sg = NULL; |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1460 | qc->flags = 0; |
Jens Axboe | 8726021 | 2007-10-16 11:14:12 +0200 | [diff] [blame] | 1461 | qc->cursg = NULL; |
| 1462 | qc->cursg_ofs = 0; |
Tejun Heo | aacda37 | 2008-03-18 17:47:43 +0900 | [diff] [blame] | 1463 | qc->nbytes = qc->extrabytes = qc->curbytes = 0; |
Brian King | 7a80118 | 2007-01-17 12:32:12 -0600 | [diff] [blame] | 1464 | qc->n_elem = 0; |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 1465 | qc->err_mask = 0; |
Mark Lord | 5a5dbd1 | 2007-03-16 10:22:26 -0400 | [diff] [blame] | 1466 | qc->sect_size = ATA_SECT_SIZE; |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1467 | |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1468 | ata_tf_init(qc->dev, &qc->tf); |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 1469 | |
| 1470 | /* init result_tf such that it indicates normal completion */ |
| 1471 | qc->result_tf.command = ATA_DRDY; |
| 1472 | qc->result_tf.feature = 0; |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1473 | } |
| 1474 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 1475 | static inline int ata_try_flush_cache(const struct ata_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1476 | { |
| 1477 | return ata_id_wcache_enabled(dev->id) || |
| 1478 | ata_id_has_flush(dev->id) || |
| 1479 | ata_id_has_flush_ext(dev->id); |
| 1480 | } |
| 1481 | |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 1482 | static inline unsigned int ac_err_mask(u8 status) |
| 1483 | { |
Albert Lee | 3655d1d | 2006-05-19 11:43:04 +0800 | [diff] [blame] | 1484 | if (status & (ATA_BUSY | ATA_DRQ)) |
Tejun Heo | 11a56d2 | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 1485 | return AC_ERR_HSM; |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 1486 | if (status & (ATA_ERR | ATA_DF)) |
| 1487 | return AC_ERR_DEV; |
| 1488 | return 0; |
| 1489 | } |
| 1490 | |
| 1491 | static inline unsigned int __ac_err_mask(u8 status) |
| 1492 | { |
| 1493 | unsigned int mask = ac_err_mask(status); |
| 1494 | if (mask == 0) |
| 1495 | return AC_ERR_OTHER; |
| 1496 | return mask; |
| 1497 | } |
| 1498 | |
Jeff Garzik | 35bb94b | 2006-04-11 13:12:34 -0400 | [diff] [blame] | 1499 | static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host) |
| 1500 | { |
Tejun Heo | 4911487 | 2007-04-17 23:44:06 +0900 | [diff] [blame] | 1501 | return *(struct ata_port **)&host->hostdata[0]; |
Jeff Garzik | 35bb94b | 2006-04-11 13:12:34 -0400 | [diff] [blame] | 1502 | } |
| 1503 | |
Tejun Heo | 78ab88f | 2008-05-01 23:41:41 +0900 | [diff] [blame] | 1504 | static inline int ata_check_ready(u8 status) |
| 1505 | { |
Jeff Garzik | 005b1f7 | 2008-05-09 15:00:55 -0400 | [diff] [blame] | 1506 | if (!(status & ATA_BUSY)) |
| 1507 | return 1; |
Tejun Heo | 78ab88f | 2008-05-01 23:41:41 +0900 | [diff] [blame] | 1508 | |
| 1509 | /* 0xff indicates either no device or device not ready */ |
| 1510 | if (status == 0xff) |
| 1511 | return -ENODEV; |
| 1512 | |
Jeff Garzik | 005b1f7 | 2008-05-09 15:00:55 -0400 | [diff] [blame] | 1513 | return 0; |
Tejun Heo | 78ab88f | 2008-05-01 23:41:41 +0900 | [diff] [blame] | 1514 | } |
| 1515 | |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 1516 | static inline unsigned long ata_deadline(unsigned long from_jiffies, |
| 1517 | unsigned long timeout_msecs) |
| 1518 | { |
| 1519 | return from_jiffies + msecs_to_jiffies(timeout_msecs); |
| 1520 | } |
| 1521 | |
Alan Cox | b15b3eb | 2008-08-01 09:18:34 +0100 | [diff] [blame] | 1522 | /* Don't open code these in drivers as there are traps. Firstly the range may |
| 1523 | change in future hardware and specs, secondly 0xFF means 'no DMA' but is |
| 1524 | > UDMA_0. Dyma ddreigiau */ |
| 1525 | |
| 1526 | static inline int ata_using_mwdma(struct ata_device *adev) |
| 1527 | { |
| 1528 | if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4) |
| 1529 | return 1; |
| 1530 | return 0; |
| 1531 | } |
| 1532 | |
| 1533 | static inline int ata_using_udma(struct ata_device *adev) |
| 1534 | { |
| 1535 | if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7) |
| 1536 | return 1; |
| 1537 | return 0; |
| 1538 | } |
| 1539 | |
| 1540 | static inline int ata_dma_enabled(struct ata_device *adev) |
| 1541 | { |
| 1542 | return (adev->dma_mode == 0xFF ? 0 : 1); |
| 1543 | } |
Tejun Heo | 48515f6 | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1544 | |
| 1545 | /************************************************************************** |
| 1546 | * PMP - drivers/ata/libata-pmp.c |
| 1547 | */ |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1548 | #ifdef CONFIG_SATA_PMP |
| 1549 | |
Tejun Heo | 48515f6 | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1550 | extern const struct ata_port_operations sata_pmp_port_ops; |
| 1551 | |
| 1552 | extern int sata_pmp_qc_defer_cmd_switch(struct ata_queued_cmd *qc); |
| 1553 | extern void sata_pmp_error_handler(struct ata_port *ap); |
| 1554 | |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1555 | #else /* CONFIG_SATA_PMP */ |
| 1556 | |
| 1557 | #define sata_pmp_port_ops sata_port_ops |
| 1558 | #define sata_pmp_qc_defer_cmd_switch ata_std_qc_defer |
| 1559 | #define sata_pmp_error_handler ata_std_error_handler |
| 1560 | |
| 1561 | #endif /* CONFIG_SATA_PMP */ |
| 1562 | |
Tejun Heo | 48515f6 | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1563 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1564 | /************************************************************************** |
| 1565 | * SFF - drivers/ata/libata-sff.c |
| 1566 | */ |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1567 | #ifdef CONFIG_ATA_SFF |
| 1568 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1569 | extern const struct ata_port_operations ata_sff_port_ops; |
Alan Cox | 871af12 | 2009-01-05 14:16:39 +0000 | [diff] [blame] | 1570 | extern const struct ata_port_operations ata_bmdma32_port_ops; |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1571 | |
| 1572 | /* PIO only, sg_tablesize and dma_boundary limits can be removed */ |
| 1573 | #define ATA_PIO_SHT(drv_name) \ |
| 1574 | ATA_BASE_SHT(drv_name), \ |
| 1575 | .sg_tablesize = LIBATA_MAX_PRD, \ |
| 1576 | .dma_boundary = ATA_DMA_BOUNDARY |
| 1577 | |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1578 | extern void ata_sff_dev_select(struct ata_port *ap, unsigned int device); |
| 1579 | extern u8 ata_sff_check_status(struct ata_port *ap); |
Alan Cox | a57c1ba | 2008-05-29 22:10:58 +0100 | [diff] [blame] | 1580 | extern void ata_sff_pause(struct ata_port *ap); |
| 1581 | extern void ata_sff_dma_pause(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1582 | extern int ata_sff_busy_sleep(struct ata_port *ap, |
| 1583 | unsigned long timeout_pat, unsigned long timeout); |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 1584 | 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] | 1585 | extern void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf); |
| 1586 | extern void ata_sff_tf_read(struct ata_port *ap, struct ata_taskfile *tf); |
| 1587 | extern void ata_sff_exec_command(struct ata_port *ap, |
| 1588 | const struct ata_taskfile *tf); |
| 1589 | extern unsigned int ata_sff_data_xfer(struct ata_device *dev, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1590 | unsigned char *buf, unsigned int buflen, int rw); |
Alan Cox | 871af12 | 2009-01-05 14:16:39 +0000 | [diff] [blame] | 1591 | extern unsigned int ata_sff_data_xfer32(struct ata_device *dev, |
| 1592 | unsigned char *buf, unsigned int buflen, int rw); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1593 | extern unsigned int ata_sff_data_xfer_noirq(struct ata_device *dev, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1594 | unsigned char *buf, unsigned int buflen, int rw); |
Sergei Shtylyov | e42a542 | 2010-05-07 22:49:02 +0400 | [diff] [blame] | 1595 | extern void ata_sff_irq_on(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1596 | extern void ata_sff_irq_clear(struct ata_port *ap); |
| 1597 | extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, |
| 1598 | u8 status, int in_wq); |
Gwendal Grignou | ea3c645 | 2010-08-31 16:20:36 -0700 | [diff] [blame] | 1599 | 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] | 1600 | extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc); |
Tejun Heo | 22183bf | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 1601 | extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc); |
Tejun Heo | c3b2889 | 2010-05-19 22:10:21 +0200 | [diff] [blame] | 1602 | extern unsigned int ata_sff_port_intr(struct ata_port *ap, |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1603 | struct ata_queued_cmd *qc); |
| 1604 | extern irqreturn_t ata_sff_interrupt(int irq, void *dev_instance); |
Alan Cox | c96f173 | 2009-03-24 10:23:46 +0000 | [diff] [blame] | 1605 | extern void ata_sff_lost_interrupt(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1606 | extern void ata_sff_freeze(struct ata_port *ap); |
| 1607 | extern void ata_sff_thaw(struct ata_port *ap); |
| 1608 | extern int ata_sff_prereset(struct ata_link *link, unsigned long deadline); |
| 1609 | extern unsigned int ata_sff_dev_classify(struct ata_device *dev, int present, |
| 1610 | u8 *r_err); |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 1611 | extern int ata_sff_wait_after_reset(struct ata_link *link, unsigned int devmask, |
| 1612 | unsigned long deadline); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1613 | extern int ata_sff_softreset(struct ata_link *link, unsigned int *classes, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1614 | unsigned long deadline); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1615 | extern int sata_sff_hardreset(struct ata_link *link, unsigned int *class, |
| 1616 | unsigned long deadline); |
| 1617 | extern void ata_sff_postreset(struct ata_link *link, unsigned int *classes); |
Alan Cox | 3d47aa8 | 2009-03-24 10:23:19 +0000 | [diff] [blame] | 1618 | extern void ata_sff_drain_fifo(struct ata_queued_cmd *qc); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1619 | extern void ata_sff_error_handler(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1620 | extern void ata_sff_std_ports(struct ata_ioports *ioaddr); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1621 | #ifdef CONFIG_PCI |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1622 | extern int ata_pci_sff_init_host(struct ata_host *host); |
| 1623 | extern int ata_pci_sff_prepare_host(struct pci_dev *pdev, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1624 | const struct ata_port_info * const * ppi, |
| 1625 | struct ata_host **r_host); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1626 | extern int ata_pci_sff_activate_host(struct ata_host *host, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1627 | irq_handler_t irq_handler, |
| 1628 | struct scsi_host_template *sht); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1629 | extern int ata_pci_sff_init_one(struct pci_dev *pdev, |
Alan Cox | 16ea0fc | 2010-02-23 02:26:06 -0500 | [diff] [blame] | 1630 | const struct ata_port_info * const * ppi, |
| 1631 | struct scsi_host_template *sht, void *host_priv, int hflags); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1632 | #endif /* CONFIG_PCI */ |
| 1633 | |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 1634 | #ifdef CONFIG_ATA_BMDMA |
| 1635 | |
| 1636 | extern const struct ata_port_operations ata_bmdma_port_ops; |
| 1637 | |
| 1638 | #define ATA_BMDMA_SHT(drv_name) \ |
| 1639 | ATA_BASE_SHT(drv_name), \ |
| 1640 | .sg_tablesize = LIBATA_MAX_PRD, \ |
| 1641 | .dma_boundary = ATA_DMA_BOUNDARY |
| 1642 | |
Tejun Heo | f47451c | 2010-05-10 21:41:40 +0200 | [diff] [blame] | 1643 | extern void ata_bmdma_qc_prep(struct ata_queued_cmd *qc); |
Tejun Heo | 360ff78 | 2010-05-10 21:41:42 +0200 | [diff] [blame] | 1644 | extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc); |
Tejun Heo | f47451c | 2010-05-10 21:41:40 +0200 | [diff] [blame] | 1645 | extern void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc); |
Tejun Heo | c3b2889 | 2010-05-19 22:10:21 +0200 | [diff] [blame] | 1646 | extern unsigned int ata_bmdma_port_intr(struct ata_port *ap, |
| 1647 | struct ata_queued_cmd *qc); |
| 1648 | extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance); |
Tejun Heo | fe06e5f | 2010-05-10 21:41:39 +0200 | [diff] [blame] | 1649 | extern void ata_bmdma_error_handler(struct ata_port *ap); |
| 1650 | extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc); |
Tejun Heo | 37f65b8 | 2010-05-19 22:10:20 +0200 | [diff] [blame] | 1651 | extern void ata_bmdma_irq_clear(struct ata_port *ap); |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1652 | extern void ata_bmdma_setup(struct ata_queued_cmd *qc); |
| 1653 | extern void ata_bmdma_start(struct ata_queued_cmd *qc); |
| 1654 | extern void ata_bmdma_stop(struct ata_queued_cmd *qc); |
| 1655 | extern u8 ata_bmdma_status(struct ata_port *ap); |
Tejun Heo | c708765 | 2010-05-10 21:41:34 +0200 | [diff] [blame] | 1656 | extern int ata_bmdma_port_start(struct ata_port *ap); |
| 1657 | extern int ata_bmdma_port_start32(struct ata_port *ap); |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1658 | |
| 1659 | #ifdef CONFIG_PCI |
| 1660 | extern int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev); |
Tejun Heo | c708765 | 2010-05-10 21:41:34 +0200 | [diff] [blame] | 1661 | extern void ata_pci_bmdma_init(struct ata_host *host); |
Tejun Heo | 1c5afdf | 2010-05-19 22:10:22 +0200 | [diff] [blame] | 1662 | extern int ata_pci_bmdma_prepare_host(struct pci_dev *pdev, |
| 1663 | const struct ata_port_info * const * ppi, |
| 1664 | struct ata_host **r_host); |
| 1665 | extern int ata_pci_bmdma_init_one(struct pci_dev *pdev, |
| 1666 | const struct ata_port_info * const * ppi, |
| 1667 | struct scsi_host_template *sht, |
| 1668 | void *host_priv, int hflags); |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1669 | #endif /* CONFIG_PCI */ |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 1670 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1671 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1672 | /** |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1673 | * ata_sff_busy_wait - Wait for a port status register |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1674 | * @ap: Port to wait for. |
| 1675 | * @bits: bits that must be clear |
| 1676 | * @max: number of 10uS waits to perform |
| 1677 | * |
| 1678 | * Waits up to max*10 microseconds for the selected bits in the port's |
| 1679 | * status register to be cleared. |
| 1680 | * Returns final value of status register. |
| 1681 | * |
| 1682 | * LOCKING: |
| 1683 | * Inherited from caller. |
| 1684 | */ |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1685 | static inline u8 ata_sff_busy_wait(struct ata_port *ap, unsigned int bits, |
| 1686 | unsigned int max) |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1687 | { |
| 1688 | u8 status; |
| 1689 | |
| 1690 | do { |
| 1691 | udelay(10); |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1692 | status = ap->ops->sff_check_status(ap); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1693 | max--; |
| 1694 | } while (status != 0xff && (status & bits) && (max > 0)); |
| 1695 | |
| 1696 | return status; |
| 1697 | } |
| 1698 | |
| 1699 | /** |
| 1700 | * ata_wait_idle - Wait for a port to be idle. |
| 1701 | * @ap: Port to wait for. |
| 1702 | * |
| 1703 | * Waits up to 10ms for port's BUSY and DRQ signals to clear. |
| 1704 | * Returns final value of status register. |
| 1705 | * |
| 1706 | * LOCKING: |
| 1707 | * Inherited from caller. |
| 1708 | */ |
| 1709 | static inline u8 ata_wait_idle(struct ata_port *ap) |
| 1710 | { |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1711 | u8 status = ata_sff_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1712 | |
| 1713 | #ifdef ATA_DEBUG |
| 1714 | if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) |
| 1715 | ata_port_printk(ap, KERN_DEBUG, "abnormal Status 0x%X\n", |
| 1716 | status); |
| 1717 | #endif |
| 1718 | |
| 1719 | return status; |
| 1720 | } |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1721 | #endif /* CONFIG_ATA_SFF */ |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1722 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1723 | #endif /* __LINUX_LIBATA_H__ */ |