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include/linux/libata.h
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/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Copyright 2003-2005 Red Hat, Inc. All rights reserved. * Copyright 2003-2005 Jeff Garzik * |
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* libata documentation is available via 'make {ps|pdf}docs', |
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* as Documentation/driver-api/libata.rst |
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*/ #ifndef __LINUX_LIBATA_H__ #define __LINUX_LIBATA_H__ #include <linux/delay.h> |
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#include <linux/jiffies.h> |
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#include <linux/interrupt.h> |
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#include <linux/dma-mapping.h> |
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#include <linux/scatterlist.h> |
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#include <linux/io.h> |
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#include <linux/ata.h> #include <linux/workqueue.h> |
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#include <scsi/scsi_host.h> |
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#include <linux/acpi.h> |
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#include <linux/cdrom.h> |
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#include <linux/sched.h> |
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#include <linux/async.h> |
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/* * Define if arch has non-standard setup. This is a _PCI_ standard * not a legacy or ISA standard. */ #ifdef CONFIG_ATA_NONSTANDARD |
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#include <asm/libata-portmap.h> |
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#else |
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#define ATA_PRIMARY_IRQ(dev) 14 #define ATA_SECONDARY_IRQ(dev) 15 |
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#endif |
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/* |
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* compile-time options: to be removed as soon as all the drivers are * converted to the new debugging mechanism |
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*/ #undef ATA_DEBUG /* debugging output */ #undef ATA_VERBOSE_DEBUG /* yet more debugging output */ #undef ATA_IRQ_TRAP /* define to ack screaming irqs */ #undef ATA_NDEBUG /* define to disable quick runtime checks */ |
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/* note: prints function name for you */ #ifdef ATA_DEBUG |
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#define DPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
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#ifdef ATA_VERBOSE_DEBUG |
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#define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
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#else #define VPRINTK(fmt, args...) #endif /* ATA_VERBOSE_DEBUG */ #else #define DPRINTK(fmt, args...) #define VPRINTK(fmt, args...) #endif /* ATA_DEBUG */ |
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#define ata_print_version_once(dev, version) \ ({ \ static bool __print_once; \ \ if (!__print_once) { \ __print_once = true; \ ata_print_version(dev, version); \ } \ }) |
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/* NEW: debug levels */ #define HAVE_LIBATA_MSG 1 enum { ATA_MSG_DRV = 0x0001, ATA_MSG_INFO = 0x0002, ATA_MSG_PROBE = 0x0004, ATA_MSG_WARN = 0x0008, ATA_MSG_MALLOC = 0x0010, ATA_MSG_CTL = 0x0020, ATA_MSG_INTR = 0x0040, ATA_MSG_ERR = 0x0080, }; #define ata_msg_drv(p) ((p)->msg_enable & ATA_MSG_DRV) #define ata_msg_info(p) ((p)->msg_enable & ATA_MSG_INFO) #define ata_msg_probe(p) ((p)->msg_enable & ATA_MSG_PROBE) #define ata_msg_warn(p) ((p)->msg_enable & ATA_MSG_WARN) #define ata_msg_malloc(p) ((p)->msg_enable & ATA_MSG_MALLOC) #define ata_msg_ctl(p) ((p)->msg_enable & ATA_MSG_CTL) #define ata_msg_intr(p) ((p)->msg_enable & ATA_MSG_INTR) #define ata_msg_err(p) ((p)->msg_enable & ATA_MSG_ERR) static inline u32 ata_msg_init(int dval, int default_msg_enable_bits) { if (dval < 0 || dval >= (sizeof(u32) * 8)) return default_msg_enable_bits; /* should be 0x1 - only driver info msgs */ if (!dval) return 0; return (1 << dval) - 1; } |
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/* defines only for the constants which don't work well as enums */ #define ATA_TAG_POISON 0xfafbfcfdU |
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enum { /* various global constants */ LIBATA_MAX_PRD = ATA_MAX_PRD / 2, |
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LIBATA_DUMB_MAX_PRD = ATA_MAX_PRD / 4, /* Worst case */ |
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ATA_DEF_QUEUE = 1, |
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ATA_MAX_QUEUE = 32, |
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ATA_TAG_INTERNAL = ATA_MAX_QUEUE, |
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ATA_SHORT_PAUSE = 16, |
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ATAPI_MAX_DRAIN = 16 << 10, |
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ATA_ALL_DEVICES = (1 << ATA_MAX_DEVICES) - 1, |
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ATA_SHT_EMULATED = 1, |
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ATA_SHT_THIS_ID = -1, |
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/* struct ata_taskfile flags */ ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */ ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */ ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */ ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */ ATA_TFLAG_LBA = (1 << 4), /* enable LBA */ ATA_TFLAG_FUA = (1 << 5), /* enable FUA */ ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */ |
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/* struct ata_device stuff */ |
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ATA_DFLAG_LBA = (1 << 0), /* device supports LBA */ ATA_DFLAG_LBA48 = (1 << 1), /* device supports LBA48 */ |
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ATA_DFLAG_CDB_INTR = (1 << 2), /* device asserts INTRQ when ready for CDB */ |
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ATA_DFLAG_NCQ = (1 << 3), /* device supports NCQ */ |
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ATA_DFLAG_FLUSH_EXT = (1 << 4), /* do FLUSH_EXT instead of FLUSH */ |
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ATA_DFLAG_ACPI_PENDING = (1 << 5), /* ACPI resume action pending */ ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */ |
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ATA_DFLAG_AN = (1 << 7), /* AN configured */ |
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ATA_DFLAG_TRUSTED = (1 << 8), /* device supports trusted send/recv */ |
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ATA_DFLAG_DMADIR = (1 << 10), /* device requires DMADIR */ |
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ATA_DFLAG_CFG_MASK = (1 << 12) - 1, |
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ATA_DFLAG_PIO = (1 << 12), /* device limited to PIO mode */ ATA_DFLAG_NCQ_OFF = (1 << 13), /* device limited to non-NCQ mode */ |
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ATA_DFLAG_SLEEPING = (1 << 15), /* device is sleeping */ |
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ATA_DFLAG_DUBIOUS_XFER = (1 << 16), /* data transfer not verified */ |
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ATA_DFLAG_NO_UNLOAD = (1 << 17), /* device doesn't support unload */ |
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ATA_DFLAG_UNLOCK_HPA = (1 << 18), /* unlock HPA */ |
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ATA_DFLAG_NCQ_SEND_RECV = (1 << 19), /* device supports NCQ SEND and RECV */ |
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ATA_DFLAG_NCQ_PRIO = (1 << 20), /* device supports NCQ priority */ |
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ATA_DFLAG_NCQ_PRIO_ENABLE = (1 << 21), /* Priority cmds sent to dev */ |
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ATA_DFLAG_INIT_MASK = (1 << 24) - 1, |
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ATA_DFLAG_DETACH = (1 << 24), ATA_DFLAG_DETACHED = (1 << 25), |
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ATA_DFLAG_DA = (1 << 26), /* device supports Device Attention */ |
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ATA_DFLAG_DEVSLP = (1 << 27), /* device supports Device Sleep */ |
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ATA_DFLAG_ACPI_DISABLED = (1 << 28), /* ACPI for the device is disabled */ |
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ATA_DFLAG_D_SENSE = (1 << 29), /* Descriptor sense requested */ |
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ATA_DFLAG_ZAC = (1 << 30), /* ZAC device */ |
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ATA_DEV_UNKNOWN = 0, /* unknown device */ ATA_DEV_ATA = 1, /* ATA device */ ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */ ATA_DEV_ATAPI = 3, /* ATAPI device */ ATA_DEV_ATAPI_UNSUP = 4, /* ATAPI device (unsupported) */ |
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ATA_DEV_PMP = 5, /* SATA port multiplier */ ATA_DEV_PMP_UNSUP = 6, /* SATA port multiplier (unsupported) */ ATA_DEV_SEMB = 7, /* SEMB */ ATA_DEV_SEMB_UNSUP = 8, /* SEMB (unsupported) */ |
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ATA_DEV_ZAC = 9, /* ZAC device */ |
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ATA_DEV_ZAC_UNSUP = 10, /* ZAC device (unsupported) */ ATA_DEV_NONE = 11, /* no device */ |
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/* struct ata_link flags */ |
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/* NOTE: struct ata_force_param currently stores lflags in u16 */ |
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ATA_LFLAG_NO_HRST = (1 << 1), /* avoid hardreset */ |
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ATA_LFLAG_NO_SRST = (1 << 2), /* avoid softreset */ ATA_LFLAG_ASSUME_ATA = (1 << 3), /* assume ATA class */ ATA_LFLAG_ASSUME_SEMB = (1 << 4), /* assume SEMB class */ ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB, |
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ATA_LFLAG_NO_RETRY = (1 << 5), /* don't retry this link */ |
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ATA_LFLAG_DISABLED = (1 << 6), /* link is disabled */ |
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ATA_LFLAG_SW_ACTIVITY = (1 << 7), /* keep activity stats */ |
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ATA_LFLAG_NO_LPM = (1 << 8), /* disable LPM on this link */ |
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ATA_LFLAG_RST_ONCE = (1 << 9), /* limit recovery to one reset */ |
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ATA_LFLAG_CHANGED = (1 << 10), /* LPM state changed on this link */ |
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ATA_LFLAG_NO_DB_DELAY = (1 << 11), /* no debounce delay on link resume */ |
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/* struct ata_port flags */ |
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ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */ |
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/* (doesn't imply presence) */ |
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ATA_FLAG_SATA = (1 << 1), |
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ATA_FLAG_NO_LPM = (1 << 2), /* host not happy with LPM */ |
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ATA_FLAG_NO_LOG_PAGE = (1 << 5), /* do not issue log page read */ |
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ATA_FLAG_NO_ATAPI = (1 << 6), /* No ATAPI support */ ATA_FLAG_PIO_DMA = (1 << 7), /* PIO cmds via DMA */ ATA_FLAG_PIO_LBA48 = (1 << 8), /* Host DMA engine is LBA28 only */ |
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ATA_FLAG_PIO_POLLING = (1 << 9), /* use polling PIO if LLD * doesn't handle PIO interrupts */ ATA_FLAG_NCQ = (1 << 10), /* host supports NCQ */ |
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ATA_FLAG_NO_POWEROFF_SPINDOWN = (1 << 11), /* don't spindown before poweroff */ ATA_FLAG_NO_HIBERNATE_SPINDOWN = (1 << 12), /* don't spindown before hibernation */ |
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ATA_FLAG_DEBUGMSG = (1 << 13), |
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ATA_FLAG_FPDMA_AA = (1 << 14), /* driver supports Auto-Activate */ |
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ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */ |
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ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */ |
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ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */ |
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ATA_FLAG_AN = (1 << 18), /* controller supports AN */ |
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ATA_FLAG_PMP = (1 << 19), /* controller supports PMP */ |
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ATA_FLAG_FPDMA_AUX = (1 << 20), /* controller supports H2DFIS aux field */ |
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ATA_FLAG_EM = (1 << 21), /* driver supports enclosure * management */ ATA_FLAG_SW_ACTIVITY = (1 << 22), /* driver supports sw activity * led */ |
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ATA_FLAG_NO_DIPM = (1 << 23), /* host not happy with DIPM */ |
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ATA_FLAG_SAS_HOST = (1 << 24), /* SAS host */ |
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/* bits 24:31 of ap->flags are reserved for LLD specific flags */ |
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/* struct ata_port pflags */ ATA_PFLAG_EH_PENDING = (1 << 0), /* EH pending */ ATA_PFLAG_EH_IN_PROGRESS = (1 << 1), /* EH in progress */ ATA_PFLAG_FROZEN = (1 << 2), /* port is frozen */ ATA_PFLAG_RECOVERED = (1 << 3), /* recovery action performed */ ATA_PFLAG_LOADING = (1 << 4), /* boot/loading probe */ |
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ATA_PFLAG_SCSI_HOTPLUG = (1 << 6), /* SCSI hotplug scheduled */ |
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ATA_PFLAG_INITIALIZING = (1 << 7), /* being initialized, don't touch */ |
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ATA_PFLAG_RESETTING = (1 << 8), /* reset in progress */ |
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ATA_PFLAG_UNLOADING = (1 << 9), /* driver is being unloaded */ ATA_PFLAG_UNLOADED = (1 << 10), /* driver is unloaded */ |
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ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */ |
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ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */ |
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ATA_PFLAG_INIT_GTM_VALID = (1 << 19), /* initial gtm data valid */ |
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ATA_PFLAG_PIO32 = (1 << 20), /* 32bit PIO */ ATA_PFLAG_PIO32CHANGE = (1 << 21), /* 32bit PIO can be turned on/off */ |
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ATA_PFLAG_EXTERNAL = (1 << 22), /* eSATA/external port */ |
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/* struct ata_queued_cmd flags */ ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */ |
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ATA_QCFLAG_DMAMAP = (1 << 1), /* SG table is DMA mapped */ |
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ATA_QCFLAG_IO = (1 << 3), /* standard IO command */ |
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ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */ |
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ATA_QCFLAG_CLEAR_EXCL = (1 << 5), /* clear excl_link on completion */ |
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ATA_QCFLAG_QUIET = (1 << 6), /* don't report device error */ |
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ATA_QCFLAG_RETRY = (1 << 7), /* retry after failure */ |
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ATA_QCFLAG_FAILED = (1 << 16), /* cmd failed and is owned by EH */ ATA_QCFLAG_SENSE_VALID = (1 << 17), /* sense data valid */ ATA_QCFLAG_EH_SCHEDULED = (1 << 18), /* EH scheduled (obsolete) */ |
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/* host set flags */ |
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ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */ |
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ATA_HOST_STARTED = (1 << 1), /* Host started */ |
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ATA_HOST_PARALLEL_SCAN = (1 << 2), /* Ports on this host can be scanned in parallel */ |
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ATA_HOST_IGNORE_ATA = (1 << 3), /* Ignore ATA devices on this host. */ |
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/* bits 24:31 of host->flags are reserved for LLD specific flags */ |
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/* various lengths of time */ |
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ATA_TMOUT_BOOT = 30000, /* heuristic */ ATA_TMOUT_BOOT_QUICK = 7000, /* heuristic */ |
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ATA_TMOUT_INTERNAL_QUICK = 5000, |
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ATA_TMOUT_MAX_PARK = 30000, |
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/* * GoVault needs 2s and iVDR disk HHD424020F7SV00 800ms. 2s * is too much without parallel probing. Use 2s if parallel * probing is available, 800ms otherwise. |
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*/ |
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ATA_TMOUT_FF_WAIT_LONG = 2000, ATA_TMOUT_FF_WAIT = 800, |
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/* Spec mandates to wait for ">= 2ms" before checking status * after reset. We wait 150ms, because that was the magic * delay used for ATAPI devices in Hale Landis's ATADRVR, for * the period of time between when the ATA command register is * written, and then status is checked. Because waiting for * "a while" before checking status is fine, post SRST, we * perform this magic delay here as well. * * Old drivers/ide uses the 2mS rule and then waits for ready. */ |
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ATA_WAIT_AFTER_RESET = 150, |
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/* If PMP is supported, we have to do follow-up SRST. As some * PMPs don't send D2H Reg FIS after hardreset, LLDs are * advised to wait only for the following duration before * doing SRST. */ |
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ATA_TMOUT_PMP_SRST_WAIT = 5000, |
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/* When the LPM policy is set to ATA_LPM_MAX_POWER, there might * be a spurious PHY event, so ignore the first PHY event that * occurs within 10s after the policy change. */ ATA_TMOUT_SPURIOUS_PHY = 10000, |
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/* ATA bus states */ BUS_UNKNOWN = 0, BUS_DMA = 1, BUS_IDLE = 2, BUS_NOINTR = 3, BUS_NODATA = 4, BUS_TIMER = 5, BUS_PIO = 6, BUS_EDD = 7, BUS_IDENTIFY = 8, BUS_PACKET = 9, /* SATA port states */ PORT_UNKNOWN = 0, PORT_ENABLED = 1, PORT_DISABLED = 2, /* encoding various smaller bitmaps into a single |
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* unsigned long bitmap |
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*/ |
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ATA_NR_PIO_MODES = 7, ATA_NR_MWDMA_MODES = 5, ATA_NR_UDMA_MODES = 8, |
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ATA_SHIFT_PIO = 0, |
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ATA_SHIFT_MWDMA = ATA_SHIFT_PIO + ATA_NR_PIO_MODES, ATA_SHIFT_UDMA = ATA_SHIFT_MWDMA + ATA_NR_MWDMA_MODES, |
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ATA_SHIFT_PRIO = 6, |
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ATA_PRIO_HIGH = 2, |
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/* size of buffer to pad xfers ending on unaligned boundaries */ ATA_DMA_PAD_SZ = 4, |
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/* ering size */ ATA_ERING_SIZE = 32, |
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/* return values for ->qc_defer */ ATA_DEFER_LINK = 1, ATA_DEFER_PORT = 2, |
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/* desc_len for ata_eh_info and context */ ATA_EH_DESC_LEN = 80, |
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/* reset / recovery action types */ ATA_EH_REVALIDATE = (1 << 0), |
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ATA_EH_SOFTRESET = (1 << 1), /* meaningful only in ->prereset */ ATA_EH_HARDRESET = (1 << 2), /* meaningful only in ->prereset */ ATA_EH_RESET = ATA_EH_SOFTRESET | ATA_EH_HARDRESET, |
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ATA_EH_ENABLE_LINK = (1 << 3), |
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ATA_EH_PARK = (1 << 5), /* unload heads and stop I/O */ |
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ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_PARK, |
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ATA_EH_ALL_ACTIONS = ATA_EH_REVALIDATE | ATA_EH_RESET | |
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ATA_EH_ENABLE_LINK, |
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/* ata_eh_info->flags */ |
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ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */ |
1cdaf534f
|
349 350 |
ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */ ATA_EHI_QUIET = (1 << 3), /* be quiet */ |
e2f3d75fc
|
351 |
ATA_EHI_NO_RECOVERY = (1 << 4), /* no recovery */ |
abdda7331
|
352 |
|
0d64a233f
|
353 354 355 356 |
ATA_EHI_DID_SOFTRESET = (1 << 16), /* already soft-reset this port */ ATA_EHI_DID_HARDRESET = (1 << 17), /* already soft-reset this port */ ATA_EHI_PRINTINFO = (1 << 18), /* print configuration info */ ATA_EHI_SETMODE = (1 << 19), /* configure transfer mode */ |
89692c032
|
357 |
ATA_EHI_POST_SETMODE = (1 << 20), /* revalidating after setmode */ |
f3e81b19a
|
358 |
|
0d64a233f
|
359 |
ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET, |
13abf50df
|
360 |
|
848e4c68c
|
361 362 |
/* mask of flags to transfer *to* the slave link */ ATA_EHI_TO_SLAVE_MASK = ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, |
a1e10f7e6
|
363 364 |
/* max tries if error condition is still set after ->error_handler */ ATA_EH_MAX_TRIES = 5, |
ad9e27624
|
365 |
|
5040ab67a
|
366 367 |
/* sometimes resuming a link requires several retries */ ATA_LINK_RESUME_TRIES = 5, |
14d2bac18
|
368 369 |
/* how hard are we gonna try to probe/recover devices */ ATA_PROBE_MAX_TRIES = 3, |
022bdb075
|
370 |
ATA_EH_DEV_TRIES = 3, |
e0a717526
|
371 372 |
ATA_EH_PMP_TRIES = 5, ATA_EH_PMP_LINK_TRIES = 3, |
bf1bff6fa
|
373 |
SATA_PMP_RW_TIMEOUT = 3000, /* PMP read/write timeout */ |
f5914a461
|
374 |
|
87fbc5a06
|
375 376 377 |
/* This should match the actual table size of * ata_eh_cmd_timeout_table in libata-eh.c. */ |
6013efd88
|
378 |
ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 6, |
87fbc5a06
|
379 |
|
935908598
|
380 |
/* Horkage types. May be set by libata or controller on drives |
25985edce
|
381 |
(some horkage may be drive/controller pair dependent */ |
935908598
|
382 383 |
ATA_HORKAGE_DIAGNOSTIC = (1 << 0), /* Failed boot diag */ |
6919a0a6c
|
384 385 |
ATA_HORKAGE_NODMA = (1 << 1), /* DMA problems */ ATA_HORKAGE_NONCQ = (1 << 2), /* Don't use NCQ */ |
18d6e9d51
|
386 |
ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */ |
16c55b038
|
387 |
ATA_HORKAGE_BROKEN_HPA = (1 << 4), /* Broken HPA */ |
50af2fa1e
|
388 |
ATA_HORKAGE_DISABLE = (1 << 5), /* Disable it */ |
93328e114
|
389 |
ATA_HORKAGE_HPA_SIZE = (1 << 6), /* native size off by one */ |
6bbfd53d4
|
390 |
ATA_HORKAGE_IVB = (1 << 8), /* cbl det validity bit bugs */ |
2d3b8eea7
|
391 |
ATA_HORKAGE_STUCK_ERR = (1 << 9), /* stuck ERR on next PACKET */ |
9ce8e3073
|
392 |
ATA_HORKAGE_BRIDGE_OK = (1 << 10), /* no bridge limits */ |
6a87e42e9
|
393 394 |
ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11), /* use ATAPI DMA for commands not multiple of 16 bytes */ |
877d03105
|
395 |
ATA_HORKAGE_FIRMWARE_WARN = (1 << 12), /* firmware update warning */ |
9062712fa
|
396 |
ATA_HORKAGE_1_5_GBPS = (1 << 13), /* force 1.5 Gbps */ |
d0cb43b35
|
397 |
ATA_HORKAGE_NOSETXFER = (1 << 14), /* skip SETXFER, SATA only */ |
388539f3f
|
398 |
ATA_HORKAGE_BROKEN_FPDMA_AA = (1 << 15), /* skip AA */ |
43c9c5918
|
399 |
ATA_HORKAGE_DUMP_ID = (1 << 16), /* dump IDENTIFY data */ |
a32450e12
|
400 |
ATA_HORKAGE_MAX_SEC_LBA48 = (1 << 17), /* Set max sects to 65535 */ |
966fbe193
|
401 |
ATA_HORKAGE_ATAPI_DMADIR = (1 << 18), /* device requires dmadir */ |
f78dea064
|
402 |
ATA_HORKAGE_NO_NCQ_TRIM = (1 << 19), /* don't use queued TRIM */ |
ecd75ad51
|
403 404 |
ATA_HORKAGE_NOLPM = (1 << 20), /* don't use LPM */ ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21), /* some WDs have broken LPM */ |
e61f7d1c3
|
405 |
ATA_HORKAGE_ZERO_AFTER_TRIM = (1 << 22),/* guarantees zero after trim */ |
7cfdfdc82
|
406 |
ATA_HORKAGE_NO_DMA_LOG = (1 << 23), /* don't use DMA for log read */ |
71d126fd2
|
407 |
ATA_HORKAGE_NOTRIM = (1 << 24), /* don't use TRIM */ |
af34d6376
|
408 |
ATA_HORKAGE_MAX_SEC_1024 = (1 << 25), /* Limit max sects to 1024 */ |
3b5455636
|
409 |
ATA_HORKAGE_MAX_TRIM_128M = (1 << 26), /* Limit max trim size to 128M */ |
b3a706014
|
410 |
|
2dcb407e6
|
411 |
/* DMA mask for user DMA control: User visible values; DO NOT |
b3a706014
|
412 413 414 415 |
renumber */ ATA_DMA_MASK_ATA = (1 << 0), /* DMA on ATA Disk */ ATA_DMA_MASK_ATAPI = (1 << 1), /* DMA on ATAPI */ ATA_DMA_MASK_CFA = (1 << 2), /* DMA on CF Card */ |
ceb0c6426
|
416 417 418 419 420 |
/* ATAPI command types */ ATAPI_READ = 0, /* READs */ ATAPI_WRITE = 1, /* WRITEs */ ATAPI_READ_CD = 2, /* READ CD [MSF] */ |
e52dcc489
|
421 422 |
ATAPI_PASS_THRU = 3, /* SAT pass-thru */ ATAPI_MISC = 4, /* the rest */ |
624d5c514
|
423 424 425 426 427 428 429 430 431 432 |
/* Timing constants */ ATA_TIMING_SETUP = (1 << 0), ATA_TIMING_ACT8B = (1 << 1), ATA_TIMING_REC8B = (1 << 2), ATA_TIMING_CYC8B = (1 << 3), ATA_TIMING_8BIT = ATA_TIMING_ACT8B | ATA_TIMING_REC8B | ATA_TIMING_CYC8B, ATA_TIMING_ACTIVE = (1 << 4), ATA_TIMING_RECOVER = (1 << 5), |
3ada9c126
|
433 434 435 |
ATA_TIMING_DMACK_HOLD = (1 << 6), ATA_TIMING_CYCLE = (1 << 7), ATA_TIMING_UDMA = (1 << 8), |
624d5c514
|
436 437 438 |
ATA_TIMING_ALL = ATA_TIMING_SETUP | ATA_TIMING_ACT8B | ATA_TIMING_REC8B | ATA_TIMING_CYC8B | ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER | |
3ada9c126
|
439 440 |
ATA_TIMING_DMACK_HOLD | ATA_TIMING_CYCLE | ATA_TIMING_UDMA, |
f1bce7f80
|
441 442 443 444 445 |
/* ACPI constants */ ATA_ACPI_FILTER_SETXFER = 1 << 0, ATA_ACPI_FILTER_LOCK = 1 << 1, ATA_ACPI_FILTER_DIPM = 1 << 2, |
fa5b561c4
|
446 447 |
ATA_ACPI_FILTER_FPDMA_OFFSET = 1 << 3, /* FPDMA non-zero offset */ ATA_ACPI_FILTER_FPDMA_AA = 1 << 4, /* FPDMA auto activate */ |
f1bce7f80
|
448 449 450 451 |
ATA_ACPI_FILTER_DEFAULT = ATA_ACPI_FILTER_SETXFER | ATA_ACPI_FILTER_LOCK | ATA_ACPI_FILTER_DIPM, |
1da177e4c
|
452 |
}; |
7dc951aef
|
453 454 455 456 457 458 459 460 |
enum ata_xfer_mask { ATA_MASK_PIO = ((1LU << ATA_NR_PIO_MODES) - 1) << ATA_SHIFT_PIO, ATA_MASK_MWDMA = ((1LU << ATA_NR_MWDMA_MODES) - 1) << ATA_SHIFT_MWDMA, ATA_MASK_UDMA = ((1LU << ATA_NR_UDMA_MODES) - 1) << ATA_SHIFT_UDMA, }; |
14be71f4c
|
461 |
enum hsm_task_states { |
c56b14d2a
|
462 |
HSM_ST_IDLE, /* no command on going */ |
715276470
|
463 464 |
HSM_ST_FIRST, /* (waiting the device to) write CDB or first data block */ |
c56b14d2a
|
465 466 |
HSM_ST, /* (waiting the device to) transfer data */ HSM_ST_LAST, /* (waiting the device to) complete command */ |
c56b14d2a
|
467 |
HSM_ST_ERR, /* error */ |
1da177e4c
|
468 |
}; |
a7dac447b
|
469 |
enum ata_completion_errors { |
25937580a
|
470 |
AC_ERR_OK = 0, /* no error */ |
11a56d243
|
471 472 473 474 475 476 477 478 479 |
AC_ERR_DEV = (1 << 0), /* device reported error */ AC_ERR_HSM = (1 << 1), /* host state machine violation */ AC_ERR_TIMEOUT = (1 << 2), /* timeout */ AC_ERR_MEDIA = (1 << 3), /* media error */ AC_ERR_ATA_BUS = (1 << 4), /* ATA bus error */ AC_ERR_HOST_BUS = (1 << 5), /* host bus error */ AC_ERR_SYSTEM = (1 << 6), /* system error */ AC_ERR_INVALID = (1 << 7), /* invalid argument */ AC_ERR_OTHER = (1 << 8), /* unknown */ |
55a8e2c83
|
480 |
AC_ERR_NODEV_HINT = (1 << 9), /* polling device detection hint */ |
5335b7290
|
481 |
AC_ERR_NCQ = (1 << 10), /* marker for offending NCQ qc */ |
a7dac447b
|
482 |
}; |
c93b263e0
|
483 484 485 486 487 488 489 490 |
/* * Link power management policy: If you alter this, you also need to * alter libata-scsi.c (for the ascii descriptions) */ enum ata_lpm_policy { ATA_LPM_UNKNOWN, ATA_LPM_MAX_POWER, ATA_LPM_MED_POWER, |
f4ac64769
|
491 |
ATA_LPM_MED_POWER_WITH_DIPM, /* Med power + DIPM as win IRST does */ |
a5ec5a7bf
|
492 493 |
ATA_LPM_MIN_POWER_WITH_PARTIAL, /* Min Power + partial and slumber */ ATA_LPM_MIN_POWER, /* Min power + no partial (slumber only) */ |
c93b263e0
|
494 |
}; |
6b7ae9545
|
495 496 497 |
enum ata_lpm_hints { ATA_LPM_EMPTY = (1 << 0), /* port empty/probing */ ATA_LPM_HIPM = (1 << 1), /* may use HIPM */ |
fb3296335
|
498 |
ATA_LPM_WAKE_ONLY = (1 << 2), /* only wake up link */ |
6b7ae9545
|
499 |
}; |
1da177e4c
|
500 501 502 503 |
/* forward declarations */ struct scsi_device; struct ata_port_operations; struct ata_port; |
cc0680a58
|
504 |
struct ata_link; |
1da177e4c
|
505 506 507 |
struct ata_queued_cmd; /* typedefs */ |
77853bf2b
|
508 |
typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc); |
cc0680a58
|
509 510 |
typedef int (*ata_prereset_fn_t)(struct ata_link *link, unsigned long deadline); typedef int (*ata_reset_fn_t)(struct ata_link *link, unsigned int *classes, |
d4b2bab4f
|
511 |
unsigned long deadline); |
cc0680a58
|
512 |
typedef void (*ata_postreset_fn_t)(struct ata_link *link, unsigned int *classes); |
1da177e4c
|
513 |
|
45fabbb77
|
514 |
extern struct device_attribute dev_attr_unload_heads; |
ec811a94c
|
515 516 |
#ifdef CONFIG_SATA_HOST extern struct device_attribute dev_attr_link_power_management_policy; |
84f95243b
|
517 |
extern struct device_attribute dev_attr_ncq_prio_enable; |
18f7ba4c2
|
518 519 520 |
extern struct device_attribute dev_attr_em_message_type; extern struct device_attribute dev_attr_em_message; extern struct device_attribute dev_attr_sw_activity; |
ec811a94c
|
521 |
#endif |
18f7ba4c2
|
522 523 524 525 526 527 |
enum sw_activity { OFF, BLINK_ON, BLINK_OFF, }; |
ca77329fb
|
528 |
|
dc34e7e1a
|
529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 |
struct ata_taskfile { unsigned long flags; /* ATA_TFLAG_xxx */ u8 protocol; /* ATA_PROT_xxx */ u8 ctl; /* control reg */ u8 hob_feature; /* additional data */ u8 hob_nsect; /* to support LBA48 */ u8 hob_lbal; u8 hob_lbam; u8 hob_lbah; u8 feature; u8 nsect; u8 lbal; u8 lbam; u8 lbah; u8 device; u8 command; /* IO operation */ |
8be5ad9ac
|
550 551 552 553 |
u32 auxiliary; /* auxiliary field */ /* from SATA 3.1 and */ /* ATA-8 ACS-3 */ |
dc34e7e1a
|
554 |
}; |
127102aea
|
555 |
#ifdef CONFIG_ATA_SFF |
1da177e4c
|
556 |
struct ata_ioports { |
0d5ff5667
|
557 558 559 560 561 562 563 564 565 566 567 568 569 |
void __iomem *cmd_addr; void __iomem *data_addr; void __iomem *error_addr; void __iomem *feature_addr; void __iomem *nsect_addr; void __iomem *lbal_addr; void __iomem *lbam_addr; void __iomem *lbah_addr; void __iomem *device_addr; void __iomem *status_addr; void __iomem *command_addr; void __iomem *altstatus_addr; void __iomem *ctl_addr; |
9a7780c9a
|
570 |
#ifdef CONFIG_ATA_BMDMA |
0d5ff5667
|
571 |
void __iomem *bmdma_addr; |
9a7780c9a
|
572 |
#endif /* CONFIG_ATA_BMDMA */ |
0d5ff5667
|
573 |
void __iomem *scr_addr; |
1da177e4c
|
574 |
}; |
127102aea
|
575 |
#endif /* CONFIG_ATA_SFF */ |
1da177e4c
|
576 |
|
cca3974e4
|
577 |
struct ata_host { |
1da177e4c
|
578 579 |
spinlock_t lock; struct device *dev; |
0d5ff5667
|
580 |
void __iomem * const *iomap; |
1da177e4c
|
581 |
unsigned int n_ports; |
1a112d10f
|
582 |
unsigned int n_tags; /* nr of NCQ tags */ |
1da177e4c
|
583 |
void *private_data; |
029cfd6b7
|
584 |
struct ata_port_operations *ops; |
5444a6f40
|
585 |
unsigned long flags; |
2623c7a5f
|
586 |
struct kref kref; |
c0c362b60
|
587 588 589 |
struct mutex eh_mutex; struct task_struct *eh_owner; |
032af1ce1
|
590 |
struct ata_port *simplex_claimed; /* channel owning the DMA */ |
9c5fbf05c
|
591 |
struct ata_port *ports[]; |
1da177e4c
|
592 593 594 595 596 597 598 599 600 601 602 603 604 |
}; struct ata_queued_cmd { struct ata_port *ap; struct ata_device *dev; struct scsi_cmnd *scsicmd; void (*scsidone)(struct scsi_cmnd *); struct ata_taskfile tf; u8 cdb[ATAPI_CDB_LEN]; unsigned long flags; /* ATA_QCFLAG_xxx */ |
5ac40790b
|
605 606 |
unsigned int tag; /* libata core tag */ unsigned int hw_tag; /* driver tag */ |
1da177e4c
|
607 |
unsigned int n_elem; |
5825627c9
|
608 |
unsigned int orig_n_elem; |
1da177e4c
|
609 610 |
int dma_dir; |
5a5dbd18a
|
611 |
unsigned int sect_size; |
cedc9a478
|
612 |
|
1da177e4c
|
613 |
unsigned int nbytes; |
aacda3753
|
614 |
unsigned int extrabytes; |
1da177e4c
|
615 |
unsigned int curbytes; |
1da177e4c
|
616 |
struct scatterlist sgent; |
1da177e4c
|
617 |
|
ff2aeb1eb
|
618 |
struct scatterlist *sg; |
1da177e4c
|
619 |
|
b34e90429
|
620 621 |
struct scatterlist *cursg; unsigned int cursg_ofs; |
a22e2eb07
|
622 |
unsigned int err_mask; |
e61e06722
|
623 |
struct ata_taskfile result_tf; |
1da177e4c
|
624 |
ata_qc_cb_t complete_fn; |
1da177e4c
|
625 |
void *private_data; |
1c50dc83f
|
626 |
void *lldd_task; |
1da177e4c
|
627 |
}; |
cca3974e4
|
628 |
struct ata_port_stats { |
1da177e4c
|
629 630 631 632 |
unsigned long unhandled_irq; unsigned long idle_irq; unsigned long rw_reqbuf; }; |
0c247c559
|
633 |
struct ata_ering_entry { |
3884f7b0a
|
634 |
unsigned int eflags; |
0c247c559
|
635 636 637 638 639 640 641 642 |
unsigned int err_mask; u64 timestamp; }; struct ata_ering { int cursor; struct ata_ering_entry ring[ATA_ERING_SIZE]; }; |
1da177e4c
|
643 |
struct ata_device { |
9af5c9c97
|
644 |
struct ata_link *link; |
72fa4b742
|
645 |
unsigned int devno; /* 0 or 1 */ |
75683fe71
|
646 |
unsigned int horkage; /* List of broken features */ |
6866e7bc8
|
647 |
unsigned long flags; /* ATA_DFLAG_xxx */ |
3edebac41
|
648 |
struct scsi_device *sdev; /* attached SCSI device */ |
95514fd8f
|
649 |
void *private_data; |
fafbae87d
|
650 |
#ifdef CONFIG_ATA_ACPI |
398e07826
|
651 |
union acpi_object *gtf_cache; |
110f66d25
|
652 |
unsigned int gtf_filter; |
fafbae87d
|
653 |
#endif |
afe759511
|
654 655 656 |
#ifdef CONFIG_SATA_ZPODD void *zpodd; #endif |
d9027470b
|
657 |
struct device tdev; |
99cf610aa
|
658 |
/* n_sector is CLEAR_BEGIN, read comment above CLEAR_BEGIN */ |
72fa4b742
|
659 |
u64 n_sectors; /* size of device, if ATA */ |
5920dadfb
|
660 |
u64 n_native_sectors; /* native size, if ATA */ |
1da177e4c
|
661 |
unsigned int class; /* ATA_DEV_xxx */ |
45fabbb77
|
662 |
unsigned long unpark_deadline; |
e0a717526
|
663 |
|
1da177e4c
|
664 665 666 667 |
u8 pio_mode; u8 dma_mode; u8 xfer_mode; unsigned int xfer_shift; /* ATA_SHIFT_xxx */ |
8cbd6df1f
|
668 669 |
unsigned int multi_count; /* sectors count for READ/WRITE MULTIPLE */ |
b00eec1d5
|
670 |
unsigned int max_sectors; /* per-device max sectors */ |
6e7846e9c
|
671 |
unsigned int cdb_len; |
8bf62ecee
|
672 |
|
acf356b12
|
673 |
/* per-dev xfer mask */ |
7dc951aef
|
674 675 676 |
unsigned long pio_mask; unsigned long mwdma_mask; unsigned long udma_mask; |
acf356b12
|
677 |
|
8bf62ecee
|
678 679 680 681 |
/* for CHS addressing */ u16 cylinders; /* Number of cylinders */ u16 heads; /* Number of heads */ u16 sectors; /* Number of sectors per track */ |
0c247c559
|
682 |
|
f7e989301
|
683 684 685 |
union { u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */ u32 gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */ |
4ee34ea3a
|
686 |
} ____cacheline_aligned; |
99cf610aa
|
687 |
|
803739d25
|
688 689 |
/* DEVSLP Timing Variables from Identify Device Data Log */ u8 devslp_timing[ATA_LOG_DEVSLP_SIZE]; |
65fe1f0f6
|
690 |
|
ed36911c7
|
691 692 |
/* NCQ send and receive log subcommand support */ u8 ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_SIZE]; |
284b3b77e
|
693 |
u8 ncq_non_data_cmds[ATA_LOG_NCQ_NON_DATA_SIZE]; |
ed36911c7
|
694 |
|
6d1003ae8
|
695 696 697 698 699 |
/* ZAC zone configuration */ u32 zac_zoned_cap; u32 zac_zones_optimal_open; u32 zac_zones_optimal_nonseq; u32 zac_zones_max_open; |
99cf610aa
|
700 701 702 703 |
/* error history */ int spdn_cnt; /* ering is CLEAR_END, read comment above CLEAR_END */ struct ata_ering ering; |
1da177e4c
|
704 |
}; |
99cf610aa
|
705 706 |
/* Fields between ATA_DEVICE_CLEAR_BEGIN and ATA_DEVICE_CLEAR_END are * cleared to zero on ata_dev_init(). |
72fa4b742
|
707 |
*/ |
99cf610aa
|
708 709 |
#define ATA_DEVICE_CLEAR_BEGIN offsetof(struct ata_device, n_sectors) #define ATA_DEVICE_CLEAR_END offsetof(struct ata_device, ering) |
72fa4b742
|
710 |
|
f3e81b19a
|
711 712 713 714 715 |
struct ata_eh_info { struct ata_device *dev; /* offending device */ u32 serror; /* SError from LLDD */ unsigned int err_mask; /* port-wide err_mask */ unsigned int action; /* ATA_EH_* action mask */ |
47005f255
|
716 |
unsigned int dev_action[ATA_MAX_DEVICES]; /* dev EH action */ |
f3e81b19a
|
717 |
unsigned int flags; /* ATA_EHI_* flags */ |
abdda7331
|
718 |
|
abdda7331
|
719 |
unsigned int probe_mask; |
f3e81b19a
|
720 721 722 723 724 725 726 |
char desc[ATA_EH_DESC_LEN]; int desc_len; }; struct ata_eh_context { struct ata_eh_info i; int tries[ATA_MAX_DEVICES]; |
87fbc5a06
|
727 728 |
int cmd_timeout_idx[ATA_MAX_DEVICES] [ATA_EH_CMD_TIMEOUT_TABLE_SIZE]; |
abdda7331
|
729 730 |
unsigned int classes[ATA_MAX_DEVICES]; unsigned int did_probe_mask; |
45fabbb77
|
731 |
unsigned int unloaded_mask; |
00115e0f5
|
732 733 |
unsigned int saved_ncq_enabled; u8 saved_xfer_mode[ATA_MAX_DEVICES]; |
0a2c0f561
|
734 735 |
/* timestamp for the last reset attempt or success */ unsigned long last_reset; |
f3e81b19a
|
736 |
}; |
64578a3de
|
737 738 739 740 741 742 743 744 745 746 |
struct ata_acpi_drive { u32 pio; u32 dma; } __packed; struct ata_acpi_gtm { struct ata_acpi_drive drive[2]; u32 flags; } __packed; |
9af5c9c97
|
747 748 |
struct ata_link { struct ata_port *ap; |
8989805d6
|
749 |
int pmp; /* port multiplier port # */ |
9af5c9c97
|
750 |
|
d9027470b
|
751 |
struct device tdev; |
9af5c9c97
|
752 753 |
unsigned int active_tag; /* active tag on this link */ u32 sactive; /* active NCQ commands */ |
0c88758b5
|
754 |
unsigned int flags; /* ATA_LFLAG_xxx */ |
d127ea7b8
|
755 |
u32 saved_scontrol; /* SControl on probe */ |
9af5c9c97
|
756 757 758 |
unsigned int hw_sata_spd_limit; unsigned int sata_spd_limit; unsigned int sata_spd; /* current SATA PHY speed */ |
6b7ae9545
|
759 |
enum ata_lpm_policy lpm_policy; |
9af5c9c97
|
760 761 762 763 764 765 766 |
/* record runtime error info, protected by host_set lock */ struct ata_eh_info eh_info; /* EH context */ struct ata_eh_context eh_context; struct ata_device device[ATA_MAX_DEVICES]; |
09c5b4803
|
767 768 |
unsigned long last_lpm_change; /* when last LPM change happened */ |
9af5c9c97
|
769 |
}; |
d9027470b
|
770 771 |
#define ATA_LINK_CLEAR_BEGIN offsetof(struct ata_link, active_tag) #define ATA_LINK_CLEAR_END offsetof(struct ata_link, device[0]) |
9af5c9c97
|
772 |
|
1da177e4c
|
773 |
struct ata_port { |
cca3974e4
|
774 |
struct Scsi_Host *scsi_host; /* our co-allocated scsi host */ |
029cfd6b7
|
775 |
struct ata_port_operations *ops; |
ba6a13083
|
776 |
spinlock_t *lock; |
e3cf95dd6
|
777 778 |
/* Flags owned by the EH context. Only EH should touch these once the port is active */ |
1da177e4c
|
779 |
unsigned long flags; /* ATA_FLAG_xxx */ |
e3cf95dd6
|
780 |
/* Flags that change dynamically, protected by ap->lock */ |
b51e9e5db
|
781 |
unsigned int pflags; /* ATA_PFLAG_xxx */ |
44877b4e2
|
782 |
unsigned int print_id; /* user visible unique port ID */ |
e628dc999
|
783 |
unsigned int local_port_no; /* host local port num */ |
44877b4e2
|
784 |
unsigned int port_no; /* 0 based port no. inside the host */ |
1da177e4c
|
785 |
|
127102aea
|
786 |
#ifdef CONFIG_ATA_SFF |
1da177e4c
|
787 |
struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */ |
1da177e4c
|
788 789 |
u8 ctl; /* cache of ATA control register */ u8 last_ctl; /* Cache last written value */ |
ea3c64506
|
790 |
struct ata_link* sff_pio_task_link; /* link currently used */ |
c429137a6
|
791 |
struct delayed_work sff_pio_task; |
9a7780c9a
|
792 |
#ifdef CONFIG_ATA_BMDMA |
f60d70113
|
793 794 |
struct ata_bmdma_prd *bmdma_prd; /* BMDMA SG list */ dma_addr_t bmdma_prd_dma; /* and its DMA mapping */ |
9a7780c9a
|
795 |
#endif /* CONFIG_ATA_BMDMA */ |
5fe7454aa
|
796 |
#endif /* CONFIG_ATA_SFF */ |
1da177e4c
|
797 798 799 800 |
unsigned int pio_mask; unsigned int mwdma_mask; unsigned int udma_mask; unsigned int cbl; /* cable type; ATA_CBL_xxx */ |
1da177e4c
|
801 |
|
28361c403
|
802 |
struct ata_queued_cmd qcmd[ATA_MAX_QUEUE + 1]; |
12cb5ce10
|
803 |
unsigned long sas_tag_allocated; /* for sas tag allocation only */ |
e3ed89396
|
804 |
u64 qc_active; |
da917d69d
|
805 |
int nr_active_links; /* #links with active qcs */ |
12cb5ce10
|
806 |
unsigned int sas_last_tag; /* track next tag hw expects */ |
dedaf2b03
|
807 |
|
b1c72916a
|
808 809 |
struct ata_link link; /* host default link */ struct ata_link *slave_link; /* see ata_slave_link_init() */ |
1da177e4c
|
810 |
|
8989805d6
|
811 812 |
int nr_pmp_links; /* nr of available PMP links */ struct ata_link *pmp_link; /* array of PMP links */ |
da917d69d
|
813 |
struct ata_link *excl_link; /* for PMP qc exclusion */ |
8989805d6
|
814 |
|
cca3974e4
|
815 816 |
struct ata_port_stats stats; struct ata_host *host; |
2f1f610b6
|
817 |
struct device *dev; |
d9027470b
|
818 |
struct device tdev; |
1da177e4c
|
819 |
|
ad72cf988
|
820 |
struct mutex scsi_scan_mutex; |
52bad64d9
|
821 |
struct delayed_work hotplug_task; |
3b01b8af2
|
822 |
struct work_struct scsi_rescan_task; |
86e45b6bd
|
823 |
|
14be71f4c
|
824 |
unsigned int hsm_task_state; |
1da177e4c
|
825 |
|
bfd605795
|
826 |
u32 msg_enable; |
a72ec4ce6
|
827 |
struct list_head eh_done_q; |
c6cf9e99d
|
828 |
wait_queue_head_t eh_wait_q; |
a1e10f7e6
|
829 |
int eh_tries; |
45fabbb77
|
830 |
struct completion park_req_pending; |
bfd605795
|
831 |
|
500530f65
|
832 |
pm_message_t pm_mesg; |
6b7ae9545
|
833 |
enum ata_lpm_policy target_lpm_policy; |
500530f65
|
834 |
|
5ddf24c5e
|
835 836 |
struct timer_list fastdrain_timer; unsigned long fastdrain_cnt; |
b5292111d
|
837 |
async_cookie_t cookie; |
18f7ba4c2
|
838 |
int em_message_type; |
1da177e4c
|
839 |
void *private_data; |
fe635c7e9
|
840 |
|
fafbae87d
|
841 |
#ifdef CONFIG_ATA_ACPI |
c05e6ff03
|
842 |
struct ata_acpi_gtm __acpi_init_gtm; /* use ata_acpi_init_gtm() */ |
fafbae87d
|
843 |
#endif |
84bda12af
|
844 845 |
/* owned by EH */ u8 sector_buf[ATA_SECT_SIZE] ____cacheline_aligned; |
1da177e4c
|
846 |
}; |
029cfd6b7
|
847 848 849 850 851 852 |
/* The following initializer overrides a method to NULL whether one of * its parent has the method defined or not. This is equivalent to * ERR_PTR(-ENOENT). Unfortunately, ERR_PTR doesn't render a constant * expression and thus can't be used as an initializer. */ #define ATA_OP_NULL (void *)(unsigned long)(-ENOENT) |
1da177e4c
|
853 |
struct ata_port_operations { |
c1bc899f5
|
854 855 856 |
/* * Command execution */ |
95364f367
|
857 858 859 |
int (*qc_defer)(struct ata_queued_cmd *qc); int (*check_atapi_dma)(struct ata_queued_cmd *qc); enum ata_completion_errors (*qc_prep)(struct ata_queued_cmd *qc); |
c1bc899f5
|
860 |
unsigned int (*qc_issue)(struct ata_queued_cmd *qc); |
22183bf56
|
861 |
bool (*qc_fill_rtf)(struct ata_queued_cmd *qc); |
1da177e4c
|
862 |
|
c1bc899f5
|
863 864 865 866 867 868 869 870 |
/* * Configuration and exception handling */ int (*cable_detect)(struct ata_port *ap); unsigned long (*mode_filter)(struct ata_device *dev, unsigned long xfer_mask); void (*set_piomode)(struct ata_port *ap, struct ata_device *dev); void (*set_dmamode)(struct ata_port *ap, struct ata_device *dev); int (*set_mode)(struct ata_link *link, struct ata_device **r_failed_dev); |
963e4975c
|
871 |
unsigned int (*read_id)(struct ata_device *dev, struct ata_taskfile *tf, u16 *id); |
1da177e4c
|
872 |
|
c1bc899f5
|
873 |
void (*dev_config)(struct ata_device *dev); |
1da177e4c
|
874 |
|
c1bc899f5
|
875 876 |
void (*freeze)(struct ata_port *ap); void (*thaw)(struct ata_port *ap); |
a1efdaba2
|
877 878 879 880 881 882 883 884 |
ata_prereset_fn_t prereset; ata_reset_fn_t softreset; ata_reset_fn_t hardreset; ata_postreset_fn_t postreset; ata_prereset_fn_t pmp_prereset; ata_reset_fn_t pmp_softreset; ata_reset_fn_t pmp_hardreset; ata_postreset_fn_t pmp_postreset; |
c1bc899f5
|
885 |
void (*error_handler)(struct ata_port *ap); |
c96f1732e
|
886 |
void (*lost_interrupt)(struct ata_port *ap); |
c1bc899f5
|
887 |
void (*post_internal_cmd)(struct ata_queued_cmd *qc); |
e4a9c3732
|
888 889 |
void (*sched_eh)(struct ata_port *ap); void (*end_eh)(struct ata_port *ap); |
c1bc899f5
|
890 891 892 893 |
/* * Optional features */ |
82ef04fb4
|
894 895 |
int (*scr_read)(struct ata_link *link, unsigned int sc_reg, u32 *val); int (*scr_write)(struct ata_link *link, unsigned int sc_reg, u32 val); |
c1bc899f5
|
896 897 |
void (*pmp_attach)(struct ata_port *ap); void (*pmp_detach)(struct ata_port *ap); |
6b7ae9545
|
898 899 |
int (*set_lpm)(struct ata_link *link, enum ata_lpm_policy policy, unsigned hints); |
c1bc899f5
|
900 901 902 903 904 905 906 907 908 |
/* * Start, stop, suspend and resume */ int (*port_suspend)(struct ata_port *ap, pm_message_t mesg); int (*port_resume)(struct ata_port *ap); int (*port_start)(struct ata_port *ap); void (*port_stop)(struct ata_port *ap); void (*host_stop)(struct ata_host *host); |
127102aea
|
909 |
#ifdef CONFIG_ATA_SFF |
c1bc899f5
|
910 911 912 |
/* * SFF / taskfile oriented ops */ |
5682ed33a
|
913 |
void (*sff_dev_select)(struct ata_port *ap, unsigned int device); |
41dec29bc
|
914 |
void (*sff_set_devctl)(struct ata_port *ap, u8 ctl); |
5682ed33a
|
915 916 917 918 919 920 |
u8 (*sff_check_status)(struct ata_port *ap); u8 (*sff_check_altstatus)(struct ata_port *ap); void (*sff_tf_load)(struct ata_port *ap, const struct ata_taskfile *tf); void (*sff_tf_read)(struct ata_port *ap, struct ata_taskfile *tf); void (*sff_exec_command)(struct ata_port *ap, const struct ata_taskfile *tf); |
989e0aac1
|
921 |
unsigned int (*sff_data_xfer)(struct ata_queued_cmd *qc, |
5682ed33a
|
922 |
unsigned char *buf, unsigned int buflen, int rw); |
e42a542ba
|
923 |
void (*sff_irq_on)(struct ata_port *); |
27943620c
|
924 |
bool (*sff_irq_check)(struct ata_port *); |
5682ed33a
|
925 |
void (*sff_irq_clear)(struct ata_port *); |
8244cd059
|
926 |
void (*sff_drain_fifo)(struct ata_queued_cmd *qc); |
5682ed33a
|
927 |
|
9a7780c9a
|
928 |
#ifdef CONFIG_ATA_BMDMA |
c1bc899f5
|
929 930 931 932 |
void (*bmdma_setup)(struct ata_queued_cmd *qc); void (*bmdma_start)(struct ata_queued_cmd *qc); void (*bmdma_stop)(struct ata_queued_cmd *qc); u8 (*bmdma_status)(struct ata_port *ap); |
9a7780c9a
|
933 |
#endif /* CONFIG_ATA_BMDMA */ |
127102aea
|
934 |
#endif /* CONFIG_ATA_SFF */ |
c1bc899f5
|
935 |
|
18f7ba4c2
|
936 937 938 939 940 941 |
ssize_t (*em_show)(struct ata_port *ap, char *buf); ssize_t (*em_store)(struct ata_port *ap, const char *message, size_t size); ssize_t (*sw_activity_show)(struct ata_device *dev, char *buf); ssize_t (*sw_activity_store)(struct ata_device *dev, enum sw_activity val); |
439d7a358
|
942 943 |
ssize_t (*transmit_led_message)(struct ata_port *ap, u32 state, ssize_t size); |
c1bc899f5
|
944 945 |
/* * Obsolete |
9ec957f20
|
946 |
*/ |
c1bc899f5
|
947 948 |
void (*phy_reset)(struct ata_port *ap); void (*eng_timeout)(struct ata_port *ap); |
029cfd6b7
|
949 950 951 952 953 954 |
/* * ->inherits must be the last field and all the preceding * fields must be pointers. */ const struct ata_port_operations *inherits; |
1da177e4c
|
955 956 957 |
}; struct ata_port_info { |
cca3974e4
|
958 |
unsigned long flags; |
0c88758b5
|
959 |
unsigned long link_flags; |
1da177e4c
|
960 961 962 |
unsigned long pio_mask; unsigned long mwdma_mask; unsigned long udma_mask; |
029cfd6b7
|
963 |
struct ata_port_operations *port_ops; |
e99f8b5ef
|
964 |
void *private_data; |
1da177e4c
|
965 |
}; |
452503f99
|
966 967 968 969 970 971 972 973 |
struct ata_timing { unsigned short mode; /* ATA mode */ unsigned short setup; /* t1 */ unsigned short act8b; /* t2 for 8-bit I/O */ unsigned short rec8b; /* t2i for 8-bit I/O */ unsigned short cyc8b; /* t0 for 8-bit I/O */ unsigned short active; /* t2 or tD */ unsigned short recover; /* t2i or tK */ |
3ada9c126
|
974 |
unsigned short dmack_hold; /* tj */ |
452503f99
|
975 976 977 |
unsigned short cycle; /* t0 */ unsigned short udma; /* t2CYCTYP/2 */ }; |
624d5c514
|
978 979 980 |
/* * Core layer - drivers/ata/libata-core.c */ |
029cfd6b7
|
981 |
extern struct ata_port_operations ata_dummy_port_ops; |
21b0ad4fb
|
982 |
extern const struct ata_port_info ata_dummy_port_info; |
dd5b06c49
|
983 |
|
b1c04e80c
|
984 |
static inline bool ata_is_atapi(u8 prot) |
dc34e7e1a
|
985 |
{ |
37f92d77d
|
986 |
return prot & ATA_PROT_FLAG_ATAPI; |
dc34e7e1a
|
987 |
} |
b1c04e80c
|
988 |
static inline bool ata_is_pio(u8 prot) |
dc34e7e1a
|
989 |
{ |
37f92d77d
|
990 |
return prot & ATA_PROT_FLAG_PIO; |
dc34e7e1a
|
991 |
} |
b1c04e80c
|
992 |
static inline bool ata_is_dma(u8 prot) |
dc34e7e1a
|
993 |
{ |
37f92d77d
|
994 |
return prot & ATA_PROT_FLAG_DMA; |
dc34e7e1a
|
995 |
} |
b1c04e80c
|
996 |
static inline bool ata_is_ncq(u8 prot) |
dc34e7e1a
|
997 |
{ |
37f92d77d
|
998 |
return prot & ATA_PROT_FLAG_NCQ; |
dc34e7e1a
|
999 |
} |
b1c04e80c
|
1000 |
static inline bool ata_is_data(u8 prot) |
dc34e7e1a
|
1001 |
{ |
37f92d77d
|
1002 |
return prot & (ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA); |
dc34e7e1a
|
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 |
} static inline int is_multi_taskfile(struct ata_taskfile *tf) { return (tf->command == ATA_CMD_READ_MULTI) || (tf->command == ATA_CMD_WRITE_MULTI) || (tf->command == ATA_CMD_READ_MULTI_EXT) || (tf->command == ATA_CMD_WRITE_MULTI_EXT) || (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT); } |
dd5b06c49
|
1013 1014 1015 1016 |
static inline int ata_port_is_dummy(struct ata_port *ap) { return ap->ops == &ata_dummy_port_ops; } |
0aa1113d5
|
1017 |
extern int ata_std_prereset(struct ata_link *link, unsigned long deadline); |
aa2731ad9
|
1018 1019 |
extern int ata_wait_after_reset(struct ata_link *link, unsigned long deadline, int (*check_ready)(struct ata_link *link)); |
57c9efdfb
|
1020 1021 |
extern int sata_std_hardreset(struct ata_link *link, unsigned int *class, unsigned long deadline); |
203c75b82
|
1022 |
extern void ata_std_postreset(struct ata_link *link, unsigned int *classes); |
2855568b1
|
1023 |
|
f31871951
|
1024 |
extern struct ata_host *ata_host_alloc(struct device *dev, int max_ports); |
f5cda2572
|
1025 1026 |
extern struct ata_host *ata_host_alloc_pinfo(struct device *dev, const struct ata_port_info * const * ppi, int n_ports); |
2fa4a3261
|
1027 1028 |
extern void ata_host_get(struct ata_host *host); extern void ata_host_put(struct ata_host *host); |
ecef72532
|
1029 |
extern int ata_host_start(struct ata_host *host); |
f31871951
|
1030 1031 |
extern int ata_host_register(struct ata_host *host, struct scsi_host_template *sht); |
f5cda2572
|
1032 1033 1034 |
extern int ata_host_activate(struct ata_host *host, int irq, irq_handler_t irq_handler, unsigned long irq_flags, struct scsi_host_template *sht); |
0529c159d
|
1035 |
extern void ata_host_detach(struct ata_host *host); |
8d8e7d131
|
1036 |
extern void ata_host_init(struct ata_host *, struct device *, struct ata_port_operations *); |
193515d51
|
1037 |
extern int ata_scsi_detect(struct scsi_host_template *sht); |
6f4e626fb
|
1038 1039 |
extern int ata_scsi_ioctl(struct scsi_device *dev, unsigned int cmd, void __user *arg); |
75c0b0e11
|
1040 1041 1042 1043 1044 |
#ifdef CONFIG_COMPAT #define ATA_SCSI_COMPAT_IOCTL .compat_ioctl = ata_scsi_ioctl, #else #define ATA_SCSI_COMPAT_IOCTL /* empty */ #endif |
f281233d3
|
1045 |
extern int ata_scsi_queuecmd(struct Scsi_Host *h, struct scsi_cmnd *cmd); |
aad4b4d15
|
1046 |
#if IS_REACHABLE(CONFIG_ATA) |
cc97923a5
|
1047 |
bool ata_scsi_dma_need_drain(struct request *rq); |
7bb7ee870
|
1048 1049 1050 |
#else #define ata_scsi_dma_need_drain NULL #endif |
94be9a58d
|
1051 |
extern int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *dev, |
6f4e626fb
|
1052 |
unsigned int cmd, void __user *arg); |
b5b3fa386
|
1053 1054 |
extern bool ata_link_online(struct ata_link *link); extern bool ata_link_offline(struct ata_link *link); |
6ffa01d88
|
1055 |
#ifdef CONFIG_PM |
cca3974e4
|
1056 1057 |
extern int ata_host_suspend(struct ata_host *host, pm_message_t mesg); extern void ata_host_resume(struct ata_host *host); |
bc6e7c4b0
|
1058 1059 |
extern void ata_sas_port_suspend(struct ata_port *ap); extern void ata_sas_port_resume(struct ata_port *ap); |
2fcbdcb4c
|
1060 |
#else |
bc6e7c4b0
|
1061 |
static inline void ata_sas_port_suspend(struct ata_port *ap) |
2fcbdcb4c
|
1062 |
{ |
2fcbdcb4c
|
1063 |
} |
a5a656995
|
1064 1065 1066 |
static inline void ata_sas_port_resume(struct ata_port *ap) { } |
6ffa01d88
|
1067 |
#endif |
67846b301
|
1068 |
extern int ata_ratelimit(void); |
97750cebb
|
1069 1070 1071 |
extern void ata_msleep(struct ata_port *ap, unsigned int msecs); extern u32 ata_wait_register(struct ata_port *ap, void __iomem *reg, u32 mask, u32 val, unsigned long interval, unsigned long timeout); |
436d34b36
|
1072 |
extern int atapi_cmd_type(u8 opcode); |
7dc951aef
|
1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 |
extern unsigned long ata_pack_xfermask(unsigned long pio_mask, unsigned long mwdma_mask, unsigned long udma_mask); extern void ata_unpack_xfermask(unsigned long xfer_mask, unsigned long *pio_mask, unsigned long *mwdma_mask, unsigned long *udma_mask); extern u8 ata_xfer_mask2mode(unsigned long xfer_mask); extern unsigned long ata_xfer_mode2mask(u8 xfer_mode); extern int ata_xfer_mode2shift(unsigned long xfer_mode); extern const char *ata_mode_string(unsigned long xfer_mask); extern unsigned long ata_id_xfermask(const u16 *id); |
31cc23b34
|
1083 |
extern int ata_std_qc_defer(struct ata_queued_cmd *qc); |
95364f367
|
1084 |
extern enum ata_completion_errors ata_noop_qc_prep(struct ata_queued_cmd *qc); |
1da177e4c
|
1085 1086 |
extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg, unsigned int n_elem); |
057ace5e7
|
1087 |
extern unsigned int ata_dev_classify(const struct ata_taskfile *tf); |
10305f0f8
|
1088 |
extern void ata_dev_disable(struct ata_device *adev); |
6a62a04d4
|
1089 1090 1091 1092 |
extern void ata_id_string(const u16 *id, unsigned char *s, unsigned int ofs, unsigned int len); extern void ata_id_c_string(const u16 *id, unsigned char *s, unsigned int ofs, unsigned int len); |
963e4975c
|
1093 1094 |
extern unsigned int ata_do_dev_read_id(struct ata_device *dev, struct ata_taskfile *tf, u16 *id); |
f686bcb80
|
1095 |
extern void ata_qc_complete(struct ata_queued_cmd *qc); |
8385d756e
|
1096 |
extern u64 ata_qc_get_active(struct ata_port *ap); |
b27dcfb06
|
1097 |
extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd); |
1da177e4c
|
1098 1099 1100 |
extern int ata_std_bios_param(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int geom[]); |
d8d9129ea
|
1101 |
extern void ata_scsi_unlock_native_capacity(struct scsi_device *sdev); |
1da177e4c
|
1102 |
extern int ata_scsi_slave_config(struct scsi_device *sdev); |
83c47bcb3
|
1103 |
extern void ata_scsi_slave_destroy(struct scsi_device *sdev); |
a6e6ce8e8
|
1104 |
extern int ata_scsi_change_queue_depth(struct scsi_device *sdev, |
db5ed4dfd
|
1105 |
int queue_depth); |
f6e67035a
|
1106 |
extern int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, |
db5ed4dfd
|
1107 |
int queue_depth); |
3373efd89
|
1108 |
extern struct ata_device *ata_dev_pair(struct ata_device *adev); |
0260731f0
|
1109 |
extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); |
0e0b494ca
|
1110 1111 |
extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap); extern void ata_scsi_cmd_error_handler(struct Scsi_Host *host, struct ata_port *ap, struct list_head *eh_q); |
7fe183c77
|
1112 1113 1114 1115 |
/* * SATA specific code - drivers/ata/libata-sata.c */ |
6eab1bc0e
|
1116 |
#ifdef CONFIG_SATA_HOST |
2b384ede7
|
1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 |
extern const unsigned long sata_deb_timing_normal[]; extern const unsigned long sata_deb_timing_hotplug[]; extern const unsigned long sata_deb_timing_long[]; static inline const unsigned long * sata_ehc_deb_timing(struct ata_eh_context *ehc) { if (ehc->i.flags & ATA_EHI_HOTPLUGGED) return sata_deb_timing_hotplug; else return sata_deb_timing_normal; } |
6eab1bc0e
|
1129 1130 1131 1132 |
extern int sata_scr_valid(struct ata_link *link); extern int sata_scr_read(struct ata_link *link, int reg, u32 *val); extern int sata_scr_write(struct ata_link *link, int reg, u32 val); extern int sata_scr_write_flush(struct ata_link *link, int reg, u32 val); |
ab4117cf2
|
1133 |
extern int sata_set_spd(struct ata_link *link); |
78c97c80d
|
1134 1135 1136 |
extern int sata_link_hardreset(struct ata_link *link, const unsigned long *timing, unsigned long deadline, bool *online, int (*check_ready)(struct ata_link *)); |
9d3158f5c
|
1137 1138 |
extern int sata_link_resume(struct ata_link *link, const unsigned long *params, unsigned long deadline); |
a0ccd2511
|
1139 |
extern void ata_eh_analyze_ncq_error(struct ata_link *link); |
6eab1bc0e
|
1140 |
#else |
2b384ede7
|
1141 1142 1143 1144 1145 |
static inline const unsigned long * sata_ehc_deb_timing(struct ata_eh_context *ehc) { return NULL; } |
6eab1bc0e
|
1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 |
static inline int sata_scr_valid(struct ata_link *link) { return 0; } static inline int sata_scr_read(struct ata_link *link, int reg, u32 *val) { return -EOPNOTSUPP; } static inline int sata_scr_write(struct ata_link *link, int reg, u32 val) { return -EOPNOTSUPP; } static inline int sata_scr_write_flush(struct ata_link *link, int reg, u32 val) { return -EOPNOTSUPP; } |
ab4117cf2
|
1159 |
static inline int sata_set_spd(struct ata_link *link) { return -EOPNOTSUPP; } |
78c97c80d
|
1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 |
static inline int sata_link_hardreset(struct ata_link *link, const unsigned long *timing, unsigned long deadline, bool *online, int (*check_ready)(struct ata_link *)) { if (online) *online = false; return -EOPNOTSUPP; } |
9d3158f5c
|
1170 1171 1172 1173 1174 1175 |
static inline int sata_link_resume(struct ata_link *link, const unsigned long *params, unsigned long deadline) { return -EOPNOTSUPP; } |
a0ccd2511
|
1176 |
static inline void ata_eh_analyze_ncq_error(struct ata_link *link) { } |
6eab1bc0e
|
1177 |
#endif |
9d3158f5c
|
1178 1179 |
extern int sata_link_debounce(struct ata_link *link, const unsigned long *params, unsigned long deadline); |
7fe183c77
|
1180 1181 1182 |
extern int sata_link_scr_lpm(struct ata_link *link, enum ata_lpm_policy policy, bool spm_wakeup); extern int ata_slave_link_init(struct ata_port *ap); |
15964ff72
|
1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 |
extern void ata_sas_port_destroy(struct ata_port *); extern struct ata_port *ata_sas_port_alloc(struct ata_host *, struct ata_port_info *, struct Scsi_Host *); extern void ata_sas_async_probe(struct ata_port *ap); extern int ata_sas_sync_probe(struct ata_port *ap); extern int ata_sas_port_init(struct ata_port *); extern int ata_sas_port_start(struct ata_port *ap); extern int ata_sas_tport_add(struct device *parent, struct ata_port *ap); extern void ata_sas_tport_delete(struct ata_port *ap); extern void ata_sas_port_stop(struct ata_port *ap); extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *); extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap); |
7fe183c77
|
1195 1196 1197 |
extern void ata_tf_to_fis(const struct ata_taskfile *tf, u8 pmp, int is_cmd, u8 *fis); extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf); |
61a11986d
|
1198 |
extern int ata_qc_complete_multiple(struct ata_port *ap, u64 qc_active); |
8393b811f
|
1199 |
extern bool sata_lpm_ignore_phy_events(struct ata_link *link); |
a695de27f
|
1200 |
extern int sata_async_notification(struct ata_port *ap); |
1da177e4c
|
1201 |
|
be0d18dff
|
1202 1203 1204 |
extern int ata_cable_40wire(struct ata_port *ap); extern int ata_cable_80wire(struct ata_port *ap); extern int ata_cable_sata(struct ata_port *ap); |
c88f90c37
|
1205 |
extern int ata_cable_ignore(struct ata_port *ap); |
be0d18dff
|
1206 |
extern int ata_cable_unknown(struct ata_port *ap); |
624d5c514
|
1207 |
/* Timing helpers */ |
1bc4ccfff
|
1208 |
extern unsigned int ata_pio_need_iordy(const struct ata_device *); |
a0f79b929
|
1209 |
extern u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle); |
452503f99
|
1210 |
|
624d5c514
|
1211 1212 1213 1214 1215 1216 1217 1218 1219 |
/* PCI */ #ifdef CONFIG_PCI struct pci_dev; struct pci_bits { unsigned int reg; /* PCI config register to read */ unsigned int width; /* 1 (8 bit), 2 (16 bit), 4 (32 bit) */ unsigned long mask; unsigned long val; |
452503f99
|
1220 |
}; |
624d5c514
|
1221 |
extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits); |
10a663a1b
|
1222 |
extern void ata_pci_shutdown_one(struct pci_dev *pdev); |
624d5c514
|
1223 1224 1225 1226 1227 1228 1229 1230 1231 |
extern void ata_pci_remove_one(struct pci_dev *pdev); #ifdef CONFIG_PM extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg); extern int __must_check ata_pci_device_do_resume(struct pci_dev *pdev); extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); extern int ata_pci_device_resume(struct pci_dev *pdev); #endif /* CONFIG_PM */ #endif /* CONFIG_PCI */ |
b7db04d92
|
1232 1233 1234 |
struct platform_device; extern int ata_platform_remove_one(struct platform_device *pdev); |
624d5c514
|
1235 1236 1237 |
/* * ACPI - drivers/ata/libata-acpi.c */ |
e1ddb4b6a
|
1238 |
#ifdef CONFIG_ATA_ACPI |
c05e6ff03
|
1239 1240 1241 1242 1243 1244 |
static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) { if (ap->pflags & ATA_PFLAG_INIT_GTM_VALID) return &ap->__acpi_init_gtm; return NULL; } |
0d02f0b22
|
1245 1246 |
int ata_acpi_stm(struct ata_port *ap, const struct ata_acpi_gtm *stm); int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *stm); |
7c77fa4d5
|
1247 1248 |
unsigned long ata_acpi_gtm_xfermask(struct ata_device *dev, const struct ata_acpi_gtm *gtm); |
021ee9a6d
|
1249 |
int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm); |
e1ddb4b6a
|
1250 |
#else |
c05e6ff03
|
1251 1252 1253 1254 |
static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) { return NULL; } |
7c77fa4d5
|
1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 |
static inline int ata_acpi_stm(const struct ata_port *ap, struct ata_acpi_gtm *stm) { return -ENOSYS; } static inline int ata_acpi_gtm(const struct ata_port *ap, struct ata_acpi_gtm *stm) { return -ENOSYS; } static inline unsigned int ata_acpi_gtm_xfermask(struct ata_device *dev, const struct ata_acpi_gtm *gtm) { return 0; } |
021ee9a6d
|
1273 1274 1275 1276 1277 1278 |
static inline int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm) { return 0; } |
e1ddb4b6a
|
1279 |
#endif |
1da177e4c
|
1280 |
|
ece1d6361
|
1281 |
/* |
624d5c514
|
1282 |
* EH - drivers/ata/libata-eh.c |
ece1d6361
|
1283 |
*/ |
7b70fc039
|
1284 |
extern void ata_port_schedule_eh(struct ata_port *ap); |
81c757bc6
|
1285 |
extern void ata_port_wait_eh(struct ata_port *ap); |
dbd826168
|
1286 |
extern int ata_link_abort(struct ata_link *link); |
7b70fc039
|
1287 |
extern int ata_port_abort(struct ata_port *ap); |
e31804994
|
1288 1289 1290 1291 |
extern int ata_port_freeze(struct ata_port *ap); extern void ata_eh_freeze_port(struct ata_port *ap); extern void ata_eh_thaw_port(struct ata_port *ap); |
7b70fc039
|
1292 |
|
ece1d6361
|
1293 1294 |
extern void ata_eh_qc_complete(struct ata_queued_cmd *qc); extern void ata_eh_qc_retry(struct ata_queued_cmd *qc); |
f5914a461
|
1295 1296 1297 |
extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset, ata_reset_fn_t softreset, ata_reset_fn_t hardreset, ata_postreset_fn_t postreset); |
a1efdaba2
|
1298 |
extern void ata_std_error_handler(struct ata_port *ap); |
e4a9c3732
|
1299 1300 |
extern void ata_std_sched_eh(struct ata_port *ap); extern void ata_std_end_eh(struct ata_port *ap); |
8a745f1f3
|
1301 |
extern int ata_link_nr_enabled(struct ata_link *link); |
022bdb075
|
1302 |
|
61440db61
|
1303 |
/* |
68d1d07b5
|
1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 |
* Base operations to inherit from and initializers for sht * * Operations * * base : Common to all libata drivers. * sata : SATA controllers w/ native interface. * pmp : SATA controllers w/ PMP support. * sff : SFF ATA controllers w/o BMDMA support. * bmdma : SFF ATA controllers w/ BMDMA support. * * sht initializers * * BASE : Common to all libata drivers. The user must set * sg_tablesize and dma_boundary. * PIO : SFF ATA controllers w/ only PIO support. * BMDMA : SFF ATA controllers w/ BMDMA support. sg_tablesize and * dma_boundary are set to BMDMA limits. * NCQ : SATA controllers supporting NCQ. The user must set * sg_tablesize, dma_boundary and can_queue. */ extern const struct ata_port_operations ata_base_port_ops; extern const struct ata_port_operations sata_port_ops; |
45fabbb77
|
1326 |
extern struct device_attribute *ata_common_sdev_attrs[]; |
68d1d07b5
|
1327 |
|
018d5ef20
|
1328 1329 1330 1331 1332 1333 |
/* * All sht initializers (BASE, PIO, BMDMA, NCQ) must be instantiated * by the edge drivers. Because the 'module' field of sht must be the * edge driver's module reference, otherwise the driver can be unloaded * even if the scsi_device is being accessed. */ |
6f09eae3b
|
1334 |
#define __ATA_BASE_SHT(drv_name) \ |
68d1d07b5
|
1335 1336 1337 |
.module = THIS_MODULE, \ .name = drv_name, \ .ioctl = ata_scsi_ioctl, \ |
75c0b0e11
|
1338 |
ATA_SCSI_COMPAT_IOCTL \ |
68d1d07b5
|
1339 |
.queuecommand = ata_scsi_queuecmd, \ |
cc97923a5
|
1340 |
.dma_need_drain = ata_scsi_dma_need_drain, \ |
68d1d07b5
|
1341 |
.can_queue = ATA_DEF_QUEUE, \ |
12cb5ce10
|
1342 |
.tag_alloc_policy = BLK_TAG_ALLOC_RR, \ |
68d1d07b5
|
1343 |
.this_id = ATA_SHT_THIS_ID, \ |
68d1d07b5
|
1344 |
.emulated = ATA_SHT_EMULATED, \ |
68d1d07b5
|
1345 1346 1347 |
.proc_name = drv_name, \ .slave_configure = ata_scsi_slave_config, \ .slave_destroy = ata_scsi_slave_destroy, \ |
45fabbb77
|
1348 |
.bios_param = ata_std_bios_param, \ |
6f09eae3b
|
1349 1350 1351 1352 |
.unlock_native_capacity = ata_scsi_unlock_native_capacity #define ATA_BASE_SHT(drv_name) \ __ATA_BASE_SHT(drv_name), \ |
45fabbb77
|
1353 |
.sdev_attrs = ata_common_sdev_attrs |
68d1d07b5
|
1354 |
|
ec811a94c
|
1355 1356 |
#ifdef CONFIG_SATA_HOST extern struct device_attribute *ata_ncq_sdev_attrs[]; |
68d1d07b5
|
1357 |
#define ATA_NCQ_SHT(drv_name) \ |
6f09eae3b
|
1358 1359 |
__ATA_BASE_SHT(drv_name), \ .sdev_attrs = ata_ncq_sdev_attrs, \ |
68d1d07b5
|
1360 |
.change_queue_depth = ata_scsi_change_queue_depth |
ec811a94c
|
1361 |
#endif |
68d1d07b5
|
1362 1363 |
/* |
071f44b1d
|
1364 1365 |
* PMP helpers */ |
88fcd5627
|
1366 |
#ifdef CONFIG_SATA_PMP |
071f44b1d
|
1367 1368 1369 1370 1371 1372 1373 1374 1375 |
static inline bool sata_pmp_supported(struct ata_port *ap) { return ap->flags & ATA_FLAG_PMP; } static inline bool sata_pmp_attached(struct ata_port *ap) { return ap->nr_pmp_links != 0; } |
b1c04e80c
|
1376 |
static inline bool ata_is_host_link(const struct ata_link *link) |
071f44b1d
|
1377 |
{ |
b1c72916a
|
1378 |
return link == &link->ap->link || link == link->ap->slave_link; |
071f44b1d
|
1379 |
} |
88fcd5627
|
1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 |
#else /* CONFIG_SATA_PMP */ static inline bool sata_pmp_supported(struct ata_port *ap) { return false; } static inline bool sata_pmp_attached(struct ata_port *ap) { return false; } |
b1c04e80c
|
1390 |
static inline bool ata_is_host_link(const struct ata_link *link) |
88fcd5627
|
1391 1392 1393 1394 |
{ return 1; } #endif /* CONFIG_SATA_PMP */ |
071f44b1d
|
1395 1396 1397 1398 1399 1400 1401 1402 1403 |
static inline int sata_srst_pmp(struct ata_link *link) { if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) return SATA_PMP_CTRL_PORT; return link->pmp; } /* |
61440db61
|
1404 1405 |
* printk helpers */ |
b9075fa96
|
1406 |
__printf(3, 4) |
d7bead1b8
|
1407 1408 |
void ata_port_printk(const struct ata_port *ap, const char *level, const char *fmt, ...); |
b9075fa96
|
1409 |
__printf(3, 4) |
d7bead1b8
|
1410 1411 |
void ata_link_printk(const struct ata_link *link, const char *level, const char *fmt, ...); |
b9075fa96
|
1412 |
__printf(3, 4) |
d7bead1b8
|
1413 1414 |
void ata_dev_printk(const struct ata_device *dev, const char *level, const char *fmt, ...); |
a9a79dfec
|
1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 |
#define ata_port_err(ap, fmt, ...) \ ata_port_printk(ap, KERN_ERR, fmt, ##__VA_ARGS__) #define ata_port_warn(ap, fmt, ...) \ ata_port_printk(ap, KERN_WARNING, fmt, ##__VA_ARGS__) #define ata_port_notice(ap, fmt, ...) \ ata_port_printk(ap, KERN_NOTICE, fmt, ##__VA_ARGS__) #define ata_port_info(ap, fmt, ...) \ ata_port_printk(ap, KERN_INFO, fmt, ##__VA_ARGS__) #define ata_port_dbg(ap, fmt, ...) \ ata_port_printk(ap, KERN_DEBUG, fmt, ##__VA_ARGS__) #define ata_link_err(link, fmt, ...) \ ata_link_printk(link, KERN_ERR, fmt, ##__VA_ARGS__) #define ata_link_warn(link, fmt, ...) \ ata_link_printk(link, KERN_WARNING, fmt, ##__VA_ARGS__) #define ata_link_notice(link, fmt, ...) \ ata_link_printk(link, KERN_NOTICE, fmt, ##__VA_ARGS__) #define ata_link_info(link, fmt, ...) \ ata_link_printk(link, KERN_INFO, fmt, ##__VA_ARGS__) #define ata_link_dbg(link, fmt, ...) \ ata_link_printk(link, KERN_DEBUG, fmt, ##__VA_ARGS__) #define ata_dev_err(dev, fmt, ...) \ ata_dev_printk(dev, KERN_ERR, fmt, ##__VA_ARGS__) #define ata_dev_warn(dev, fmt, ...) \ ata_dev_printk(dev, KERN_WARNING, fmt, ##__VA_ARGS__) #define ata_dev_notice(dev, fmt, ...) \ ata_dev_printk(dev, KERN_NOTICE, fmt, ##__VA_ARGS__) #define ata_dev_info(dev, fmt, ...) \ ata_dev_printk(dev, KERN_INFO, fmt, ##__VA_ARGS__) #define ata_dev_dbg(dev, fmt, ...) \ ata_dev_printk(dev, KERN_DEBUG, fmt, ##__VA_ARGS__) |
1da177e4c
|
1448 |
|
06296a1e6
|
1449 |
void ata_print_version(const struct device *dev, const char *version); |
61440db61
|
1450 |
/* |
f3e81b19a
|
1451 1452 |
* ata_eh_info helpers */ |
b9075fa96
|
1453 1454 1455 1456 |
extern __printf(2, 3) void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); extern __printf(2, 3) void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); |
b64bbc39f
|
1457 |
extern void ata_ehi_clear_desc(struct ata_eh_info *ehi); |
f3e81b19a
|
1458 |
|
c0b6c0377
|
1459 1460 |
static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi) { |
b558edddb
|
1461 |
ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1; |
f8f1e1cc0
|
1462 |
ehi->flags |= ATA_EHI_HOTPLUGGED; |
b558edddb
|
1463 |
ehi->action |= ATA_EH_RESET | ATA_EH_ENABLE_LINK; |
c0b6c0377
|
1464 1465 |
ehi->err_mask |= AC_ERR_ATA_BUS; } |
f3e81b19a
|
1466 |
/* |
cbcdd8759
|
1467 1468 |
* port description helpers */ |
b9075fa96
|
1469 1470 |
extern __printf(2, 3) void ata_port_desc(struct ata_port *ap, const char *fmt, ...); |
cbcdd8759
|
1471 1472 1473 1474 |
#ifdef CONFIG_PCI extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset, const char *name); #endif |
28361c403
|
1475 |
static inline bool ata_tag_internal(unsigned int tag) |
1da177e4c
|
1476 |
{ |
28361c403
|
1477 |
return tag == ATA_TAG_INTERNAL; |
1da177e4c
|
1478 |
} |
28361c403
|
1479 |
static inline bool ata_tag_valid(unsigned int tag) |
2ab7db1ff
|
1480 |
{ |
28361c403
|
1481 |
return tag < ATA_MAX_QUEUE || ata_tag_internal(tag); |
2ab7db1ff
|
1482 |
} |
6362f0a29
|
1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 |
#define __ata_qc_for_each(ap, qc, tag, max_tag, fn) \ for ((tag) = 0; (tag) < (max_tag) && \ ({ qc = fn((ap), (tag)); 1; }); (tag)++) \ /* * Internal use only, iterate commands ignoring error handling and * status of 'qc'. */ #define ata_qc_for_each_raw(ap, qc, tag) \ __ata_qc_for_each(ap, qc, tag, ATA_MAX_QUEUE, __ata_qc_from_tag) /* * Iterate all potential commands that can be queued */ #define ata_qc_for_each(ap, qc, tag) \ __ata_qc_for_each(ap, qc, tag, ATA_MAX_QUEUE, ata_qc_from_tag) /* * Like ata_qc_for_each, but with the internal tag included */ #define ata_qc_for_each_with_internal(ap, qc, tag) \ __ata_qc_for_each(ap, qc, tag, ATA_MAX_QUEUE + 1, ata_qc_from_tag) |
5806db22c
|
1505 1506 1507 |
/* * device helpers */ |
e1211e3fa
|
1508 |
static inline unsigned int ata_class_enabled(unsigned int class) |
597afd214
|
1509 |
{ |
e0a717526
|
1510 |
return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI || |
9162c6579
|
1511 1512 |
class == ATA_DEV_PMP || class == ATA_DEV_SEMB || class == ATA_DEV_ZAC; |
597afd214
|
1513 |
} |
e1211e3fa
|
1514 |
static inline unsigned int ata_class_disabled(unsigned int class) |
1da177e4c
|
1515 |
{ |
e0a717526
|
1516 |
return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP || |
3a92945b2
|
1517 1518 |
class == ATA_DEV_PMP_UNSUP || class == ATA_DEV_SEMB_UNSUP || class == ATA_DEV_ZAC_UNSUP; |
e1211e3fa
|
1519 |
} |
002c8054f
|
1520 1521 1522 1523 |
static inline unsigned int ata_class_absent(unsigned int class) { return !ata_class_enabled(class) && !ata_class_disabled(class); } |
e1211e3fa
|
1524 1525 1526 1527 1528 1529 1530 1531 |
static inline unsigned int ata_dev_enabled(const struct ata_device *dev) { return ata_class_enabled(dev->class); } static inline unsigned int ata_dev_disabled(const struct ata_device *dev) { return ata_class_disabled(dev->class); |
1da177e4c
|
1532 |
} |
002c8054f
|
1533 1534 1535 1536 |
static inline unsigned int ata_dev_absent(const struct ata_device *dev) { return ata_class_absent(dev->class); } |
5806db22c
|
1537 |
/* |
f58229f80
|
1538 |
* link helpers |
5806db22c
|
1539 |
*/ |
f58229f80
|
1540 |
static inline int ata_link_max_devices(const struct ata_link *link) |
5806db22c
|
1541 |
{ |
8989805d6
|
1542 |
if (ata_is_host_link(link) && link->ap->flags & ATA_FLAG_SLAVE_POSS) |
5806db22c
|
1543 1544 1545 |
return 2; return 1; } |
da917d69d
|
1546 1547 1548 1549 |
static inline int ata_link_active(struct ata_link *link) { return ata_tag_valid(link->active_tag) || link->sactive; } |
1eca4365b
|
1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 |
/* * Iterators * * ATA_LITER_* constants are used to select link iteration mode and * ATA_DITER_* device iteration mode. * * For a custom iteration directly using ata_{link|dev}_next(), if * @link or @dev, respectively, is NULL, the first element is * returned. @dev and @link can be any valid device or link and the * next element according to the iteration mode will be returned. * After the last element, NULL is returned. */ enum ata_link_iter_mode { ATA_LITER_EDGE, /* if present, PMP links only; otherwise, * host link. no slave link */ ATA_LITER_HOST_FIRST, /* host link followed by PMP or slave links */ ATA_LITER_PMP_FIRST, /* PMP links followed by host link, * slave link still comes after host link */ }; enum ata_dev_iter_mode { ATA_DITER_ENABLED, ATA_DITER_ENABLED_REVERSE, ATA_DITER_ALL, ATA_DITER_ALL_REVERSE, }; extern struct ata_link *ata_link_next(struct ata_link *link, struct ata_port *ap, enum ata_link_iter_mode mode); extern struct ata_device *ata_dev_next(struct ata_device *dev, struct ata_link *link, enum ata_dev_iter_mode mode); /* * Shortcut notation for iterations * * ata_for_each_link() iterates over each link of @ap according to * @mode. @link points to the current link in the loop. @link is * NULL after loop termination. ata_for_each_dev() works the same way * except that it iterates over each device of @link. * * Note that the mode prefixes ATA_{L|D}ITER_ shouldn't need to be * specified when using the following shorthand notations. Only the * mode itself (EDGE, HOST_FIRST, ENABLED, etc...) should be * specified. This not only increases brevity but also makes it * impossible to use ATA_LITER_* for device iteration or vice-versa. */ #define ata_for_each_link(link, ap, mode) \ for ((link) = ata_link_next(NULL, (ap), ATA_LITER_##mode); (link); \ (link) = ata_link_next((link), (ap), ATA_LITER_##mode)) #define ata_for_each_dev(dev, link, mode) \ for ((dev) = ata_dev_next(NULL, (link), ATA_DITER_##mode); (dev); \ (dev) = ata_dev_next((dev), (link), ATA_DITER_##mode)) |
5806db22c
|
1606 |
|
6d1245bf2
|
1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 |
/** * ata_ncq_enabled - Test whether NCQ is enabled * @dev: ATA device to test for * * LOCKING: * spin_lock_irqsave(host lock) * * RETURNS: * 1 if NCQ is enabled for @dev, 0 otherwise. */ static inline int ata_ncq_enabled(struct ata_device *dev) { |
7caa30ea8
|
1619 1620 |
if (!IS_ENABLED(CONFIG_SATA_HOST)) return 0; |
6d1245bf2
|
1621 1622 1623 |
return (dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF | ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ; } |
0baab86b0
|
1624 |
|
87fb6c31b
|
1625 1626 1627 1628 1629 1630 |
static inline bool ata_fpdma_dsm_supported(struct ata_device *dev) { return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) && (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET] & ATA_LOG_NCQ_SEND_RECV_DSM_TRIM); } |
5c65d8bb3
|
1631 1632 1633 1634 1635 1636 |
static inline bool ata_fpdma_read_log_supported(struct ata_device *dev) { return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) && (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET] & ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED); } |
28a3fc229
|
1637 1638 1639 1640 1641 1642 |
static inline bool ata_fpdma_zac_mgmt_in_supported(struct ata_device *dev) { return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) && (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OFFSET] & ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_IN_SUPPORTED); } |
284b3b77e
|
1643 1644 1645 1646 1647 |
static inline bool ata_fpdma_zac_mgmt_out_supported(struct ata_device *dev) { return (dev->ncq_non_data_cmds[ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OFFSET] & ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OUT); } |
1da177e4c
|
1648 1649 1650 1651 |
static inline void ata_qc_set_polling(struct ata_queued_cmd *qc) { qc->tf.ctl |= ATA_NIEN; } |
f69499f42
|
1652 1653 |
static inline struct ata_queued_cmd *__ata_qc_from_tag(struct ata_port *ap, unsigned int tag) |
1da177e4c
|
1654 |
{ |
28361c403
|
1655 |
if (ata_tag_valid(tag)) |
1da177e4c
|
1656 1657 1658 |
return &ap->qcmd[tag]; return NULL; } |
f69499f42
|
1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 |
static inline struct ata_queued_cmd *ata_qc_from_tag(struct ata_port *ap, unsigned int tag) { struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag); if (unlikely(!qc) || !ap->ops->error_handler) return qc; if ((qc->flags & (ATA_QCFLAG_ACTIVE | ATA_QCFLAG_FAILED)) == ATA_QCFLAG_ACTIVE) return qc; return NULL; } |
aacda3753
|
1673 1674 1675 1676 |
static inline unsigned int ata_qc_raw_nbytes(struct ata_queued_cmd *qc) { return qc->nbytes - min(qc->extrabytes, qc->nbytes); } |
3373efd89
|
1677 |
static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf) |
1da177e4c
|
1678 1679 |
{ memset(tf, 0, sizeof(*tf)); |
5fe7454aa
|
1680 |
#ifdef CONFIG_ATA_SFF |
9af5c9c97
|
1681 |
tf->ctl = dev->link->ap->ctl; |
5fe7454aa
|
1682 1683 1684 |
#else tf->ctl = ATA_DEVCTL_OBS; #endif |
3373efd89
|
1685 |
if (dev->devno == 0) |
1da177e4c
|
1686 1687 1688 1689 |
tf->device = ATA_DEVICE_OBS; else tf->device = ATA_DEVICE_OBS | ATA_DEV1; } |
2c13b7cee
|
1690 1691 |
static inline void ata_qc_reinit(struct ata_queued_cmd *qc) { |
501e0c500
|
1692 |
qc->dma_dir = DMA_NONE; |
ff2aeb1eb
|
1693 |
qc->sg = NULL; |
2c13b7cee
|
1694 |
qc->flags = 0; |
872602162
|
1695 1696 |
qc->cursg = NULL; qc->cursg_ofs = 0; |
aacda3753
|
1697 |
qc->nbytes = qc->extrabytes = qc->curbytes = 0; |
7a801184f
|
1698 |
qc->n_elem = 0; |
a22e2eb07
|
1699 |
qc->err_mask = 0; |
5a5dbd18a
|
1700 |
qc->sect_size = ATA_SECT_SIZE; |
2c13b7cee
|
1701 |
|
3373efd89
|
1702 |
ata_tf_init(qc->dev, &qc->tf); |
e61e06722
|
1703 1704 1705 1706 |
/* init result_tf such that it indicates normal completion */ qc->result_tf.command = ATA_DRDY; qc->result_tf.feature = 0; |
2c13b7cee
|
1707 |
} |
057ace5e7
|
1708 |
static inline int ata_try_flush_cache(const struct ata_device *dev) |
1da177e4c
|
1709 1710 1711 1712 1713 |
{ return ata_id_wcache_enabled(dev->id) || ata_id_has_flush(dev->id) || ata_id_has_flush_ext(dev->id); } |
a7dac447b
|
1714 1715 |
static inline unsigned int ac_err_mask(u8 status) { |
3655d1d32
|
1716 |
if (status & (ATA_BUSY | ATA_DRQ)) |
11a56d243
|
1717 |
return AC_ERR_HSM; |
a7dac447b
|
1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 |
if (status & (ATA_ERR | ATA_DF)) return AC_ERR_DEV; return 0; } static inline unsigned int __ac_err_mask(u8 status) { unsigned int mask = ac_err_mask(status); if (mask == 0) return AC_ERR_OTHER; return mask; } |
35bb94b11
|
1730 1731 |
static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host) { |
4911487a3
|
1732 |
return *(struct ata_port **)&host->hostdata[0]; |
35bb94b11
|
1733 |
} |
78ab88f04
|
1734 1735 |
static inline int ata_check_ready(u8 status) { |
005b1f749
|
1736 1737 |
if (!(status & ATA_BUSY)) return 1; |
78ab88f04
|
1738 1739 1740 1741 |
/* 0xff indicates either no device or device not ready */ if (status == 0xff) return -ENODEV; |
005b1f749
|
1742 |
return 0; |
78ab88f04
|
1743 |
} |
341c2c958
|
1744 1745 1746 1747 1748 |
static inline unsigned long ata_deadline(unsigned long from_jiffies, unsigned long timeout_msecs) { return from_jiffies + msecs_to_jiffies(timeout_msecs); } |
b15b3ebae
|
1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 |
/* Don't open code these in drivers as there are traps. Firstly the range may change in future hardware and specs, secondly 0xFF means 'no DMA' but is > UDMA_0. Dyma ddreigiau */ static inline int ata_using_mwdma(struct ata_device *adev) { if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4) return 1; return 0; } static inline int ata_using_udma(struct ata_device *adev) { if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7) return 1; return 0; } static inline int ata_dma_enabled(struct ata_device *adev) { return (adev->dma_mode == 0xFF ? 0 : 1); } |
48515f6c0
|
1771 1772 |
/************************************************************************** |
a9b2c120e
|
1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 |
* PATA timings - drivers/ata/libata-pata-timings.c */ extern const struct ata_timing *ata_timing_find_mode(u8 xfer_mode); extern int ata_timing_compute(struct ata_device *, unsigned short, struct ata_timing *, int, int); extern void ata_timing_merge(const struct ata_timing *, const struct ata_timing *, struct ata_timing *, unsigned int); /************************************************************************** |
48515f6c0
|
1783 1784 |
* PMP - drivers/ata/libata-pmp.c */ |
88fcd5627
|
1785 |
#ifdef CONFIG_SATA_PMP |
48515f6c0
|
1786 1787 1788 1789 |
extern const struct ata_port_operations sata_pmp_port_ops; extern int sata_pmp_qc_defer_cmd_switch(struct ata_queued_cmd *qc); extern void sata_pmp_error_handler(struct ata_port *ap); |
88fcd5627
|
1790 1791 1792 1793 1794 1795 1796 |
#else /* CONFIG_SATA_PMP */ #define sata_pmp_port_ops sata_port_ops #define sata_pmp_qc_defer_cmd_switch ata_std_qc_defer #define sata_pmp_error_handler ata_std_error_handler #endif /* CONFIG_SATA_PMP */ |
48515f6c0
|
1797 |
|
624d5c514
|
1798 1799 1800 |
/************************************************************************** * SFF - drivers/ata/libata-sff.c */ |
127102aea
|
1801 |
#ifdef CONFIG_ATA_SFF |
624d5c514
|
1802 |
extern const struct ata_port_operations ata_sff_port_ops; |
871af1210
|
1803 |
extern const struct ata_port_operations ata_bmdma32_port_ops; |
624d5c514
|
1804 1805 1806 1807 1808 1809 |
/* PIO only, sg_tablesize and dma_boundary limits can be removed */ #define ATA_PIO_SHT(drv_name) \ ATA_BASE_SHT(drv_name), \ .sg_tablesize = LIBATA_MAX_PRD, \ .dma_boundary = ATA_DMA_BOUNDARY |
9363c3825
|
1810 1811 |
extern void ata_sff_dev_select(struct ata_port *ap, unsigned int device); extern u8 ata_sff_check_status(struct ata_port *ap); |
a57c1bade
|
1812 1813 |
extern void ata_sff_pause(struct ata_port *ap); extern void ata_sff_dma_pause(struct ata_port *ap); |
9363c3825
|
1814 1815 |
extern int ata_sff_busy_sleep(struct ata_port *ap, unsigned long timeout_pat, unsigned long timeout); |
705e76beb
|
1816 |
extern int ata_sff_wait_ready(struct ata_link *link, unsigned long deadline); |
9363c3825
|
1817 1818 1819 1820 |
extern void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf); extern void ata_sff_tf_read(struct ata_port *ap, struct ata_taskfile *tf); extern void ata_sff_exec_command(struct ata_port *ap, const struct ata_taskfile *tf); |
989e0aac1
|
1821 |
extern unsigned int ata_sff_data_xfer(struct ata_queued_cmd *qc, |
624d5c514
|
1822 |
unsigned char *buf, unsigned int buflen, int rw); |
989e0aac1
|
1823 |
extern unsigned int ata_sff_data_xfer32(struct ata_queued_cmd *qc, |
871af1210
|
1824 |
unsigned char *buf, unsigned int buflen, int rw); |
e42a542ba
|
1825 |
extern void ata_sff_irq_on(struct ata_port *ap); |
9363c3825
|
1826 1827 1828 |
extern void ata_sff_irq_clear(struct ata_port *ap); extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, u8 status, int in_wq); |
64b975942
|
1829 1830 1831 |
extern void ata_sff_queue_work(struct work_struct *work); extern void ata_sff_queue_delayed_work(struct delayed_work *dwork, unsigned long delay); |
ea3c64506
|
1832 |
extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay); |
9363c3825
|
1833 |
extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc); |
22183bf56
|
1834 |
extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc); |
c3b288942
|
1835 |
extern unsigned int ata_sff_port_intr(struct ata_port *ap, |
9363c3825
|
1836 1837 |
struct ata_queued_cmd *qc); extern irqreturn_t ata_sff_interrupt(int irq, void *dev_instance); |
c96f1732e
|
1838 |
extern void ata_sff_lost_interrupt(struct ata_port *ap); |
9363c3825
|
1839 1840 1841 1842 1843 |
extern void ata_sff_freeze(struct ata_port *ap); extern void ata_sff_thaw(struct ata_port *ap); extern int ata_sff_prereset(struct ata_link *link, unsigned long deadline); extern unsigned int ata_sff_dev_classify(struct ata_device *dev, int present, u8 *r_err); |
705e76beb
|
1844 1845 |
extern int ata_sff_wait_after_reset(struct ata_link *link, unsigned int devmask, unsigned long deadline); |
9363c3825
|
1846 |
extern int ata_sff_softreset(struct ata_link *link, unsigned int *classes, |
624d5c514
|
1847 |
unsigned long deadline); |
9363c3825
|
1848 1849 1850 |
extern int sata_sff_hardreset(struct ata_link *link, unsigned int *class, unsigned long deadline); extern void ata_sff_postreset(struct ata_link *link, unsigned int *classes); |
3d47aa8e7
|
1851 |
extern void ata_sff_drain_fifo(struct ata_queued_cmd *qc); |
9363c3825
|
1852 |
extern void ata_sff_error_handler(struct ata_port *ap); |
9363c3825
|
1853 |
extern void ata_sff_std_ports(struct ata_ioports *ioaddr); |
624d5c514
|
1854 |
#ifdef CONFIG_PCI |
9363c3825
|
1855 1856 |
extern int ata_pci_sff_init_host(struct ata_host *host); extern int ata_pci_sff_prepare_host(struct pci_dev *pdev, |
624d5c514
|
1857 1858 |
const struct ata_port_info * const * ppi, struct ata_host **r_host); |
9363c3825
|
1859 |
extern int ata_pci_sff_activate_host(struct ata_host *host, |
624d5c514
|
1860 1861 |
irq_handler_t irq_handler, struct scsi_host_template *sht); |
9363c3825
|
1862 |
extern int ata_pci_sff_init_one(struct pci_dev *pdev, |
16ea0fc98
|
1863 1864 |
const struct ata_port_info * const * ppi, struct scsi_host_template *sht, void *host_priv, int hflags); |
624d5c514
|
1865 |
#endif /* CONFIG_PCI */ |
9a7780c9a
|
1866 1867 1868 1869 1870 1871 1872 1873 |
#ifdef CONFIG_ATA_BMDMA extern const struct ata_port_operations ata_bmdma_port_ops; #define ATA_BMDMA_SHT(drv_name) \ ATA_BASE_SHT(drv_name), \ .sg_tablesize = LIBATA_MAX_PRD, \ .dma_boundary = ATA_DMA_BOUNDARY |
95364f367
|
1874 |
extern enum ata_completion_errors ata_bmdma_qc_prep(struct ata_queued_cmd *qc); |
360ff7833
|
1875 |
extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc); |
95364f367
|
1876 |
extern enum ata_completion_errors ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc); |
c3b288942
|
1877 1878 1879 |
extern unsigned int ata_bmdma_port_intr(struct ata_port *ap, struct ata_queued_cmd *qc); extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance); |
fe06e5f9b
|
1880 1881 |
extern void ata_bmdma_error_handler(struct ata_port *ap); extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc); |
37f65b8bc
|
1882 |
extern void ata_bmdma_irq_clear(struct ata_port *ap); |
9f2f72107
|
1883 1884 1885 1886 |
extern void ata_bmdma_setup(struct ata_queued_cmd *qc); extern void ata_bmdma_start(struct ata_queued_cmd *qc); extern void ata_bmdma_stop(struct ata_queued_cmd *qc); extern u8 ata_bmdma_status(struct ata_port *ap); |
c7087652e
|
1887 1888 |
extern int ata_bmdma_port_start(struct ata_port *ap); extern int ata_bmdma_port_start32(struct ata_port *ap); |
9f2f72107
|
1889 1890 1891 |
#ifdef CONFIG_PCI extern int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev); |
c7087652e
|
1892 |
extern void ata_pci_bmdma_init(struct ata_host *host); |
1c5afdf7a
|
1893 1894 1895 1896 1897 1898 1899 |
extern int ata_pci_bmdma_prepare_host(struct pci_dev *pdev, const struct ata_port_info * const * ppi, struct ata_host **r_host); extern int ata_pci_bmdma_init_one(struct pci_dev *pdev, const struct ata_port_info * const * ppi, struct scsi_host_template *sht, void *host_priv, int hflags); |
9f2f72107
|
1900 |
#endif /* CONFIG_PCI */ |
9a7780c9a
|
1901 |
#endif /* CONFIG_ATA_BMDMA */ |
9f2f72107
|
1902 |
|
624d5c514
|
1903 |
/** |
9363c3825
|
1904 |
* ata_sff_busy_wait - Wait for a port status register |
624d5c514
|
1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 |
* @ap: Port to wait for. * @bits: bits that must be clear * @max: number of 10uS waits to perform * * Waits up to max*10 microseconds for the selected bits in the port's * status register to be cleared. * Returns final value of status register. * * LOCKING: * Inherited from caller. */ |
9363c3825
|
1916 1917 |
static inline u8 ata_sff_busy_wait(struct ata_port *ap, unsigned int bits, unsigned int max) |
624d5c514
|
1918 1919 1920 1921 1922 |
{ u8 status; do { udelay(10); |
5682ed33a
|
1923 |
status = ap->ops->sff_check_status(ap); |
624d5c514
|
1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 |
max--; } while (status != 0xff && (status & bits) && (max > 0)); return status; } /** * ata_wait_idle - Wait for a port to be idle. * @ap: Port to wait for. * * Waits up to 10ms for port's BUSY and DRQ signals to clear. * Returns final value of status register. * * LOCKING: * Inherited from caller. */ static inline u8 ata_wait_idle(struct ata_port *ap) { |
9363c3825
|
1942 |
u8 status = ata_sff_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); |
624d5c514
|
1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 |
#ifdef ATA_DEBUG if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) ata_port_printk(ap, KERN_DEBUG, "abnormal Status 0x%X ", status); #endif return status; } |
127102aea
|
1953 |
#endif /* CONFIG_ATA_SFF */ |
624d5c514
|
1954 |
|
1da177e4c
|
1955 |
#endif /* __LINUX_LIBATA_H__ */ |