#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
-#include <asm/io.h>
+#include <asm/scatterlist.h>
+#include <linux/io.h>
#include <linux/ata.h>
#include <linux/workqueue.h>
#include <scsi/scsi_host.h>
+#include <linux/acpi.h>
+
+/*
+ * Define if arch has non-standard setup. This is a _PCI_ standard
+ * not a legacy or ISA standard.
+ */
+#ifdef CONFIG_ATA_NONSTANDARD
+#include <asm/libata-portmap.h>
+#else
+#include <asm-generic/libata-portmap.h>
+#endif
/*
* compile-time options: to be removed as soon as all the drivers are
#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 */
-#undef ATA_ENABLE_PATA /* define to enable PATA support in some
- * low-level drivers */
/* note: prints function name for you */
ATA_MAX_PORTS = 8,
ATA_DEF_QUEUE = 1,
/* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */
- ATA_MAX_QUEUE = 2,
+ ATA_MAX_QUEUE = 32,
ATA_TAG_INTERNAL = ATA_MAX_QUEUE - 1,
- ATA_MAX_SECTORS = 200, /* FIXME */
ATA_MAX_BUS = 2,
ATA_DEF_BUSY_WAIT = 10000,
ATA_SHORT_PAUSE = (HZ >> 6) + 1,
/* struct ata_device stuff */
ATA_DFLAG_LBA = (1 << 0), /* device supports LBA */
ATA_DFLAG_LBA48 = (1 << 1), /* device supports LBA48 */
+ ATA_DFLAG_CDB_INTR = (1 << 2), /* device asserts INTRQ when ready for CDB */
+ ATA_DFLAG_NCQ = (1 << 3), /* device supports NCQ */
+ ATA_DFLAG_FLUSH_EXT = (1 << 4), /* do FLUSH_EXT instead of FLUSH */
ATA_DFLAG_CFG_MASK = (1 << 8) - 1,
- ATA_DFLAG_PIO = (1 << 8), /* device currently in PIO mode */
+ ATA_DFLAG_PIO = (1 << 8), /* device limited to PIO mode */
+ ATA_DFLAG_NCQ_OFF = (1 << 9), /* device limited to non-NCQ mode */
+ ATA_DFLAG_SPUNDOWN = (1 << 10), /* XXX: for spindown_compat */
+ ATA_DFLAG_INIT_MASK = (1 << 16) - 1,
+
+ ATA_DFLAG_DETACH = (1 << 16),
+ ATA_DFLAG_DETACHED = (1 << 17),
ATA_DEV_UNKNOWN = 0, /* unknown device */
ATA_DEV_ATA = 1, /* ATA device */
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 */
- ATA_FLAG_IRQ_MASK = (1 << 9), /* Mask IRQ in PIO xfers */
-
- ATA_FLAG_NOINTR = (1 << 13), /* FIXME: Remove this once
- * proper HSM is in place. */
- ATA_FLAG_DEBUGMSG = (1 << 14),
- ATA_FLAG_FLUSH_PORT_TASK = (1 << 15), /* flush port task */
+ ATA_FLAG_PIO_POLLING = (1 << 9), /* use polling PIO if LLD
+ * doesn't handle PIO interrupts */
+ ATA_FLAG_NCQ = (1 << 10), /* host supports NCQ */
+ ATA_FLAG_HRST_TO_RESUME = (1 << 11), /* hardreset to resume phy */
+ ATA_FLAG_SKIP_D2H_BSY = (1 << 12), /* can't wait for the first D2H
+ * Register FIS clearing BSY */
+ ATA_FLAG_DEBUGMSG = (1 << 13),
+ ATA_FLAG_SETXFER_POLLING= (1 << 14), /* use polling for SETXFER */
+ ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */
+ ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */
+ ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */
+
+ /* The following flag belongs to ap->pflags but is kept in
+ * ap->flags because it's referenced in many LLDs and will be
+ * removed in not-too-distant future.
+ */
+ ATA_FLAG_DISABLED = (1 << 23), /* port is disabled, ignore it */
- ATA_FLAG_EH_PENDING = (1 << 16), /* EH pending */
- ATA_FLAG_FROZEN = (1 << 17), /* port is frozen */
+ /* bits 24:31 of ap->flags are reserved for LLD specific flags */
- ATA_FLAG_DISABLED = (1 << 22), /* port is disabled, ignore it */
- ATA_FLAG_SUSPENDED = (1 << 23), /* port is suspended (power) */
+ /* 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 */
+ ATA_PFLAG_UNLOADING = (1 << 5), /* module is unloading */
+ ATA_PFLAG_SCSI_HOTPLUG = (1 << 6), /* SCSI hotplug scheduled */
+ ATA_PFLAG_INITIALIZING = (1 << 7), /* being initialized, don't touch */
- /* bits 24:31 of ap->flags are reserved for LLDD specific flags */
+ ATA_PFLAG_FLUSH_PORT_TASK = (1 << 16), /* flush port task */
+ ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */
+ ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */
/* struct ata_queued_cmd flags */
ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */
ATA_QCFLAG_EH_SCHEDULED = (1 << 18), /* EH scheduled (obsolete) */
/* host set flags */
- ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host_set only */
-
+ ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */
+ ATA_HOST_STARTED = (1 << 1), /* Host started */
+
/* various lengths of time */
- ATA_TMOUT_PIO = 30 * HZ,
ATA_TMOUT_BOOT = 30 * HZ, /* heuristic */
ATA_TMOUT_BOOT_QUICK = 7 * HZ, /* heuristic */
- ATA_TMOUT_CDB = 30 * HZ,
- ATA_TMOUT_CDB_QUICK = 5 * HZ,
ATA_TMOUT_INTERNAL = 30 * HZ,
ATA_TMOUT_INTERNAL_QUICK = 5 * HZ,
/* encoding various smaller bitmaps into a single
* unsigned int bitmap
*/
- ATA_BITS_PIO = 5,
- ATA_BITS_MWDMA = 3,
+ ATA_BITS_PIO = 7,
+ ATA_BITS_MWDMA = 5,
ATA_BITS_UDMA = 8,
ATA_SHIFT_PIO = 0,
ATA_DMA_PAD_SZ = 4,
ATA_DMA_PAD_BUF_SZ = ATA_DMA_PAD_SZ * ATA_MAX_QUEUE,
- /* masks for port functions */
- ATA_PORT_PRIMARY = (1 << 0),
- ATA_PORT_SECONDARY = (1 << 1),
+ /* ering size */
+ ATA_ERING_SIZE = 32,
+
+ /* desc_len for ata_eh_info and context */
+ ATA_EH_DESC_LEN = 80,
+
+ /* reset / recovery action types */
+ ATA_EH_REVALIDATE = (1 << 0),
+ ATA_EH_SOFTRESET = (1 << 1),
+ ATA_EH_HARDRESET = (1 << 2),
+
+ ATA_EH_RESET_MASK = ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
+ ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE,
+
+ /* ata_eh_info->flags */
+ ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */
+ ATA_EHI_RESUME_LINK = (1 << 1), /* resume link (reset modifier) */
+ ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */
+ ATA_EHI_QUIET = (1 << 3), /* be quiet */
+
+ 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 */
+ ATA_EHI_POST_SETMODE = (1 << 20), /* revaildating after setmode */
+
+ ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET,
+ ATA_EHI_RESET_MODIFIER_MASK = ATA_EHI_RESUME_LINK,
+
+ /* max repeat if error condition is still set after ->error_handler */
+ ATA_EH_MAX_REPEAT = 5,
/* how hard are we gonna try to probe/recover devices */
ATA_PROBE_MAX_TRIES = 3,
+ ATA_EH_DEV_TRIES = 3,
+
+ /* Horkage types. May be set by libata or controller on drives
+ (some horkage may be drive/controller pair dependant */
+
+ ATA_HORKAGE_DIAGNOSTIC = (1 << 0), /* Failed boot diag */
+ ATA_HORKAGE_NODMA = (1 << 1), /* DMA problems */
+ ATA_HORKAGE_NONCQ = (1 << 2), /* Don't use NCQ */
+ ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */
+ ATA_HORKAGE_DMA_RW_ONLY = (1 << 4), /* ATAPI DMA for RW only */
};
enum hsm_task_states {
- HSM_ST_UNKNOWN,
- HSM_ST_IDLE,
- HSM_ST_POLL,
- HSM_ST_TMOUT,
- HSM_ST,
- HSM_ST_LAST,
- HSM_ST_LAST_POLL,
- HSM_ST_ERR,
+ HSM_ST_IDLE, /* no command on going */
+ HSM_ST_FIRST, /* (waiting the device to)
+ write CDB or first data block */
+ HSM_ST, /* (waiting the device to) transfer data */
+ HSM_ST_LAST, /* (waiting the device to) complete command */
+ HSM_ST_ERR, /* error */
};
enum ata_completion_errors {
AC_ERR_SYSTEM = (1 << 6), /* system error */
AC_ERR_INVALID = (1 << 7), /* invalid argument */
AC_ERR_OTHER = (1 << 8), /* unknown */
+ AC_ERR_NODEV_HINT = (1 << 9), /* polling device detection hint */
};
/* forward declarations */
/* typedefs */
typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
-typedef void (*ata_probeinit_fn_t)(struct ata_port *);
-typedef int (*ata_reset_fn_t)(struct ata_port *, unsigned int *);
-typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *);
+typedef int (*ata_prereset_fn_t)(struct ata_port *ap, unsigned long deadline);
+typedef int (*ata_reset_fn_t)(struct ata_port *ap, unsigned int *classes,
+ unsigned long deadline);
+typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *classes);
struct ata_ioports {
- unsigned long cmd_addr;
- unsigned long data_addr;
- unsigned long error_addr;
- unsigned long feature_addr;
- unsigned long nsect_addr;
- unsigned long lbal_addr;
- unsigned long lbam_addr;
- unsigned long lbah_addr;
- unsigned long device_addr;
- unsigned long status_addr;
- unsigned long command_addr;
- unsigned long altstatus_addr;
- unsigned long ctl_addr;
- unsigned long bmdma_addr;
- unsigned long scr_addr;
+ 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;
+ void __iomem *bmdma_addr;
+ void __iomem *scr_addr;
};
-struct ata_probe_ent {
- struct list_head node;
- struct device *dev;
- const struct ata_port_operations *port_ops;
- struct scsi_host_template *sht;
- struct ata_ioports port[ATA_MAX_PORTS];
- unsigned int n_ports;
- unsigned int hard_port_no;
- unsigned int pio_mask;
- unsigned int mwdma_mask;
- unsigned int udma_mask;
- unsigned int legacy_mode;
- unsigned long irq;
- unsigned int irq_flags;
- unsigned long host_flags;
- unsigned long host_set_flags;
- void __iomem *mmio_base;
- void *private_data;
-};
-
-struct ata_host_set {
+struct ata_host {
spinlock_t lock;
struct device *dev;
unsigned long irq;
- void __iomem *mmio_base;
+ unsigned long irq2;
+ void __iomem * const *iomap;
unsigned int n_ports;
void *private_data;
const struct ata_port_operations *ops;
unsigned long flags;
- int simplex_claimed; /* Keep seperate in case we
- ever need to do this locked */
- struct ata_port * ports[0];
+ struct ata_port *simplex_claimed; /* channel owning the DMA */
+ struct ata_port *ports[0];
};
struct ata_queued_cmd {
int dma_dir;
unsigned int pad_len;
-
- unsigned int nsect;
- unsigned int cursect;
+ unsigned int sect_size;
unsigned int nbytes;
unsigned int curbytes;
void *private_data;
};
-struct ata_host_stats {
+struct ata_port_stats {
unsigned long unhandled_irq;
unsigned long idle_irq;
unsigned long rw_reqbuf;
};
+struct ata_ering_entry {
+ int is_io;
+ unsigned int err_mask;
+ u64 timestamp;
+};
+
+struct ata_ering {
+ int cursor;
+ struct ata_ering_entry ring[ATA_ERING_SIZE];
+};
+
struct ata_device {
struct ata_port *ap;
- u64 n_sectors; /* size of device, if ATA */
+ unsigned int devno; /* 0 or 1 */
unsigned long flags; /* ATA_DFLAG_xxx */
+ struct scsi_device *sdev; /* attached SCSI device */
+ /* n_sector is used as CLEAR_OFFSET, read comment above CLEAR_OFFSET */
+ u64 n_sectors; /* size of device, if ATA */
unsigned int class; /* ATA_DEV_xxx */
- unsigned int devno; /* 0 or 1 */
u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
u8 pio_mode;
u8 dma_mode;
u16 cylinders; /* Number of cylinders */
u16 heads; /* Number of heads */
u16 sectors; /* Number of sectors per track */
+
+ /* error history */
+ struct ata_ering ering;
+ int spdn_cnt;
+ unsigned int horkage; /* List of broken features */
+#ifdef CONFIG_ATA_ACPI
+ /* ACPI objects info */
+ acpi_handle obj_handle;
+#endif
+};
+
+/* Offset into struct ata_device. Fields above it are maintained
+ * acress device init. Fields below are zeroed.
+ */
+#define ATA_DEVICE_CLEAR_OFFSET offsetof(struct ata_device, n_sectors)
+
+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 */
+ unsigned int dev_action[ATA_MAX_DEVICES]; /* dev EH action */
+ unsigned int flags; /* ATA_EHI_* flags */
+
+ unsigned int probe_mask;
+
+ char desc[ATA_EH_DESC_LEN];
+ int desc_len;
+};
+
+struct ata_eh_context {
+ struct ata_eh_info i;
+ int tries[ATA_MAX_DEVICES];
+ unsigned int classes[ATA_MAX_DEVICES];
+ unsigned int did_probe_mask;
};
struct ata_port {
- struct Scsi_Host *host; /* our co-allocated scsi host */
+ struct Scsi_Host *scsi_host; /* our co-allocated scsi host */
const struct ata_port_operations *ops;
+ spinlock_t *lock;
unsigned long flags; /* ATA_FLAG_xxx */
- unsigned int id; /* unique id req'd by scsi midlyr */
- unsigned int port_no; /* unique port #; from zero */
- unsigned int hard_port_no; /* hardware port #; from zero */
+ unsigned int pflags; /* ATA_PFLAG_xxx */
+ unsigned int print_id; /* user visible unique port ID */
+ unsigned int port_no; /* 0 based port no. inside the host */
struct ata_prd *prd; /* our SG list */
dma_addr_t prd_dma; /* and its DMA mapping */
unsigned int mwdma_mask;
unsigned int udma_mask;
unsigned int cbl; /* cable type; ATA_CBL_xxx */
+ unsigned int hw_sata_spd_limit;
unsigned int sata_spd_limit; /* SATA PHY speed limit */
+ /* record runtime error info, protected by host lock */
+ struct ata_eh_info eh_info;
+ /* EH context owned by EH */
+ struct ata_eh_context eh_context;
+
struct ata_device device[ATA_MAX_DEVICES];
struct ata_queued_cmd qcmd[ATA_MAX_QUEUE];
- unsigned long qactive;
+ unsigned long qc_allocated;
+ unsigned int qc_active;
+
unsigned int active_tag;
+ u32 sactive;
- struct ata_host_stats stats;
- struct ata_host_set *host_set;
+ struct ata_port_stats stats;
+ struct ata_host *host;
struct device *dev;
- struct work_struct port_task;
+ void *port_task_data;
+ struct delayed_work port_task;
+ struct delayed_work hotplug_task;
+ struct work_struct scsi_rescan_task;
unsigned int hsm_task_state;
- unsigned long pio_task_timeout;
u32 msg_enable;
struct list_head eh_done_q;
+ wait_queue_head_t eh_wait_q;
+
+ pm_message_t pm_mesg;
+ int *pm_result;
void *private_data;
struct ata_port_operations {
void (*port_disable) (struct ata_port *);
- void (*dev_config) (struct ata_port *, struct ata_device *);
+ void (*dev_config) (struct ata_device *);
void (*set_piomode) (struct ata_port *, struct ata_device *);
void (*set_dmamode) (struct ata_port *, struct ata_device *);
- unsigned long (*mode_filter) (const struct ata_port *, struct ata_device *, unsigned long);
+ unsigned long (*mode_filter) (struct ata_device *, unsigned long);
void (*tf_load) (struct ata_port *ap, const struct ata_taskfile *tf);
void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
void (*dev_select)(struct ata_port *ap, unsigned int device);
void (*phy_reset) (struct ata_port *ap); /* obsolete */
- void (*set_mode) (struct ata_port *ap);
- int (*probe_reset) (struct ata_port *ap, unsigned int *classes);
+ int (*set_mode) (struct ata_port *ap, struct ata_device **r_failed_dev);
- void (*post_set_mode) (struct ata_port *ap);
+ int (*cable_detect) (struct ata_port *ap);
- int (*check_atapi_dma) (struct ata_queued_cmd *qc);
+ int (*check_atapi_dma) (struct ata_queued_cmd *qc);
void (*bmdma_setup) (struct ata_queued_cmd *qc);
void (*bmdma_start) (struct ata_queued_cmd *qc);
+ void (*data_xfer) (struct ata_device *, unsigned char *, unsigned int, int);
+
void (*qc_prep) (struct ata_queued_cmd *qc);
unsigned int (*qc_issue) (struct ata_queued_cmd *qc);
void (*error_handler) (struct ata_port *ap);
void (*post_internal_cmd) (struct ata_queued_cmd *qc);
- irqreturn_t (*irq_handler)(int, void *, struct pt_regs *);
+ irq_handler_t irq_handler;
void (*irq_clear) (struct ata_port *);
+ u8 (*irq_on) (struct ata_port *);
+ u8 (*irq_ack) (struct ata_port *ap, unsigned int chk_drq);
u32 (*scr_read) (struct ata_port *ap, unsigned int sc_reg);
void (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
u32 val);
+ 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_set *host_set);
+ void (*host_stop) (struct ata_host *host);
void (*bmdma_stop) (struct ata_queued_cmd *qc);
u8 (*bmdma_status) (struct ata_port *ap);
struct ata_port_info {
struct scsi_host_template *sht;
- unsigned long host_flags;
+ unsigned long flags;
unsigned long pio_mask;
unsigned long mwdma_mask;
unsigned long udma_mask;
const struct ata_port_operations *port_ops;
+ irq_handler_t irq_handler;
void *private_data;
};
#define FIT(v,vmin,vmax) max_t(short,min_t(short,v,vmax),vmin)
+extern const unsigned long sata_deb_timing_normal[];
+extern const unsigned long sata_deb_timing_hotplug[];
+extern const unsigned long sata_deb_timing_long[];
+
+extern const struct ata_port_operations ata_dummy_port_ops;
+extern const struct ata_port_info ata_dummy_port_info;
+
+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;
+}
+
+static inline int ata_port_is_dummy(struct ata_port *ap)
+{
+ return ap->ops == &ata_dummy_port_ops;
+}
+
+extern void sata_print_link_status(struct ata_port *ap);
extern void ata_port_probe(struct ata_port *);
extern void __sata_phy_reset(struct ata_port *ap);
extern void sata_phy_reset(struct ata_port *ap);
extern void ata_bus_reset(struct ata_port *ap);
extern int sata_set_spd(struct ata_port *ap);
-extern int ata_drive_probe_reset(struct ata_port *ap,
- ata_probeinit_fn_t probeinit,
- ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
- ata_postreset_fn_t postreset, unsigned int *classes);
-extern void ata_std_probeinit(struct ata_port *ap);
-extern int ata_std_softreset(struct ata_port *ap, unsigned int *classes);
-extern int sata_std_hardreset(struct ata_port *ap, unsigned int *class);
+extern int sata_phy_debounce(struct ata_port *ap, const unsigned long *param,
+ unsigned long deadline);
+extern int sata_phy_resume(struct ata_port *ap, const unsigned long *param,
+ unsigned long deadline);
+extern int ata_std_prereset(struct ata_port *ap, unsigned long deadline);
+extern int ata_std_softreset(struct ata_port *ap, unsigned int *classes,
+ unsigned long deadline);
+extern int sata_port_hardreset(struct ata_port *ap, const unsigned long *timing,
+ unsigned long deadline);
+extern int sata_std_hardreset(struct ata_port *ap, unsigned int *class,
+ unsigned long deadline);
extern void ata_std_postreset(struct ata_port *ap, unsigned int *classes);
-extern int ata_dev_revalidate(struct ata_device *dev, int post_reset);
extern void ata_port_disable(struct ata_port *);
extern void ata_std_ports(struct ata_ioports *ioaddr);
#ifdef CONFIG_PCI
-extern int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
- unsigned int n_ports);
+extern int ata_pci_init_one (struct pci_dev *pdev,
+ const struct ata_port_info * const * ppi);
extern void ata_pci_remove_one (struct pci_dev *pdev);
-extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t state);
+#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
extern int ata_pci_clear_simplex(struct pci_dev *pdev);
#endif /* CONFIG_PCI */
-extern int ata_device_add(const struct ata_probe_ent *ent);
-extern void ata_host_set_remove(struct ata_host_set *host_set);
+extern struct ata_host *ata_host_alloc(struct device *dev, int max_ports);
+extern struct ata_host *ata_host_alloc_pinfo(struct device *dev,
+ const struct ata_port_info * const * ppi, int n_ports);
+extern int ata_host_start(struct ata_host *host);
+extern int ata_host_register(struct ata_host *host,
+ struct scsi_host_template *sht);
+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);
+extern void ata_host_detach(struct ata_host *host);
+extern void ata_host_init(struct ata_host *, struct device *,
+ unsigned long, const struct ata_port_operations *);
extern int ata_scsi_detect(struct scsi_host_template *sht);
extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *));
-extern int ata_scsi_release(struct Scsi_Host *host);
+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 int ata_sas_port_init(struct ata_port *);
+extern int ata_sas_port_start(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, void (*done)(struct scsi_cmnd *),
+ struct ata_port *ap);
extern unsigned int ata_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
extern int sata_scr_valid(struct ata_port *ap);
extern int sata_scr_read(struct ata_port *ap, int reg, u32 *val);
extern int sata_scr_write_flush(struct ata_port *ap, int reg, u32 val);
extern int ata_port_online(struct ata_port *ap);
extern int ata_port_offline(struct ata_port *ap);
-extern int ata_scsi_device_resume(struct scsi_device *);
-extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t state);
-extern int ata_device_resume(struct ata_device *);
-extern int ata_device_suspend(struct ata_device *, pm_message_t state);
+#ifdef CONFIG_PM
+extern int ata_host_suspend(struct ata_host *host, pm_message_t mesg);
+extern void ata_host_resume(struct ata_host *host);
+#endif
extern int ata_ratelimit(void);
-extern unsigned int ata_busy_sleep(struct ata_port *ap,
- unsigned long timeout_pat,
- unsigned long timeout);
-extern void ata_port_queue_task(struct ata_port *ap, void (*fn)(void *),
+extern int ata_busy_sleep(struct ata_port *ap,
+ unsigned long timeout_pat, unsigned long timeout);
+extern int ata_wait_ready(struct ata_port *ap, unsigned long deadline);
+extern void ata_port_queue_task(struct ata_port *ap, work_func_t fn,
void *data, unsigned long delay);
extern u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
unsigned long interval_msec,
unsigned long timeout_msec);
+extern unsigned int ata_dev_try_classify(struct ata_port *, unsigned int, u8 *);
/*
* Default driver ops implementations
extern u8 ata_check_status(struct ata_port *ap);
extern u8 ata_altstatus(struct ata_port *ap);
extern void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf);
-extern int ata_std_probe_reset(struct ata_port *ap, unsigned int *classes);
extern int ata_port_start (struct ata_port *ap);
-extern void ata_port_stop (struct ata_port *ap);
-extern void ata_host_stop (struct ata_host_set *host_set);
-extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
+extern irqreturn_t ata_interrupt (int irq, void *dev_instance);
+extern void ata_data_xfer(struct ata_device *adev, unsigned char *buf,
+ unsigned int buflen, int write_data);
+extern void ata_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
+ unsigned int buflen, int write_data);
extern void ata_qc_prep(struct ata_queued_cmd *qc);
extern void ata_noop_qc_prep(struct ata_queued_cmd *qc);
extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
unsigned int n_elem);
extern unsigned int ata_dev_classify(const struct ata_taskfile *tf);
+extern void ata_dev_disable(struct ata_device *adev);
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);
+extern void ata_id_to_dma_mode(struct ata_device *dev, u8 unknown);
+extern unsigned long ata_device_blacklisted(const struct ata_device *dev);
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);
extern void ata_bmdma_irq_clear(struct ata_port *ap);
-extern void __ata_qc_complete(struct ata_queued_cmd *qc);
+extern void ata_bmdma_freeze(struct ata_port *ap);
+extern void ata_bmdma_thaw(struct ata_port *ap);
+extern void ata_bmdma_drive_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);
+extern void ata_bmdma_error_handler(struct ata_port *ap);
+extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc);
+extern int ata_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
+ u8 status, int in_wq);
+extern void ata_qc_complete(struct ata_queued_cmd *qc);
+extern int ata_qc_complete_multiple(struct ata_port *ap, u32 qc_active,
+ void (*finish_qc)(struct ata_queued_cmd *));
extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *));
extern int ata_std_bios_param(struct scsi_device *sdev,
struct block_device *bdev,
sector_t capacity, int geom[]);
extern int ata_scsi_slave_config(struct scsi_device *sdev);
+extern void ata_scsi_slave_destroy(struct scsi_device *sdev);
+extern int ata_scsi_change_queue_depth(struct scsi_device *sdev,
+ int queue_depth);
extern struct ata_device *ata_dev_pair(struct ata_device *adev);
+extern int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev);
+extern u8 ata_irq_on(struct ata_port *ap);
+extern u8 ata_dummy_irq_on(struct ata_port *ap);
+extern u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq);
+extern u8 ata_dummy_irq_ack(struct ata_port *ap, unsigned int chk_drq);
+
+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);
+extern int ata_cable_unknown(struct ata_port *ap);
/*
* Timing helpers
unsigned long val;
};
-extern void ata_pci_host_stop (struct ata_host_set *host_set);
-extern struct ata_probe_ent *
-ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int portmask);
+extern int ata_pci_init_native_host(struct ata_host *host);
+extern int ata_pci_init_bmdma(struct ata_host *host);
+extern int ata_pci_prepare_native_host(struct pci_dev *pdev,
+ const struct ata_port_info * const * ppi,
+ struct ata_host **r_host);
extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits);
-extern unsigned long ata_pci_default_filter(const struct ata_port *, struct ata_device *, unsigned long);
+extern unsigned long ata_pci_default_filter(struct ata_device *, unsigned long);
#endif /* CONFIG_PCI */
/*
* EH
*/
extern void ata_eng_timeout(struct ata_port *ap);
+
+extern void ata_port_schedule_eh(struct ata_port *ap);
+extern int ata_port_abort(struct ata_port *ap);
+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);
+
extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
+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);
+
/*
* printk helpers
*/
#define ata_port_printk(ap, lv, fmt, args...) \
- printk(lv"ata%u: "fmt, (ap)->id , ##args)
+ printk(lv"ata%u: "fmt, (ap)->print_id , ##args)
#define ata_dev_printk(dev, lv, fmt, args...) \
- printk(lv"ata%u.%02u: "fmt, (dev)->ap->id, (dev)->devno , ##args)
+ printk(lv"ata%u.%02u: "fmt, (dev)->ap->print_id, (dev)->devno , ##args)
+
+/*
+ * ata_eh_info helpers
+ */
+#define ata_ehi_push_desc(ehi, fmt, args...) do { \
+ (ehi)->desc_len += scnprintf((ehi)->desc + (ehi)->desc_len, \
+ ATA_EH_DESC_LEN - (ehi)->desc_len, \
+ fmt , ##args); \
+} while (0)
+
+#define ata_ehi_clear_desc(ehi) do { \
+ (ehi)->desc[0] = '\0'; \
+ (ehi)->desc_len = 0; \
+} while (0)
+
+static inline void __ata_ehi_hotplugged(struct ata_eh_info *ehi)
+{
+ ehi->flags |= ATA_EHI_HOTPLUGGED | ATA_EHI_RESUME_LINK;
+ ehi->action |= ATA_EH_SOFTRESET;
+ ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1;
+}
+
+static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi)
+{
+ __ata_ehi_hotplugged(ehi);
+ ehi->err_mask |= AC_ERR_ATA_BUS;
+}
/*
* qc helpers
return tag == ATA_MAX_QUEUE - 1;
}
+/*
+ * device helpers
+ */
static inline unsigned int ata_class_enabled(unsigned int class)
{
return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI;
return ata_class_absent(dev->class);
}
+/*
+ * port helpers
+ */
+static inline int ata_port_max_devices(const struct ata_port *ap)
+{
+ if (ap->flags & ATA_FLAG_SLAVE_POSS)
+ return 2;
+ return 1;
+}
+
+
static inline u8 ata_chk_status(struct ata_port *ap)
{
return ap->ops->check_status(ap);
}
+/**
+ * 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)
+{
+ return (dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF |
+ ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ;
+}
/**
* ata_pause - Flush writes and pause 400 nanoseconds.
/**
* ata_busy_wait - Wait for a port status register
* @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.
udelay(10);
status = ata_chk_status(ap);
max--;
- } while ((status & bits) && (max > 0));
+ } while (status != 0xff && (status & bits) && (max > 0));
return status;
}
{
u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
- if (status & (ATA_BUSY | ATA_DRQ)) {
- unsigned long l = ap->ioaddr.status_addr;
+ if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) {
if (ata_msg_warn(ap))
- printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%lX\n",
- status, l);
+ printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%p\n",
+ status, ap->ioaddr.status_addr);
}
return status;
static inline void ata_qc_reinit(struct ata_queued_cmd *qc)
{
+ qc->dma_dir = DMA_NONE;
qc->__sg = NULL;
qc->flags = 0;
- qc->cursect = qc->cursg = qc->cursg_ofs = 0;
- qc->nsect = 0;
+ qc->cursg = qc->cursg_ofs = 0;
qc->nbytes = qc->curbytes = 0;
+ qc->n_elem = 0;
qc->err_mask = 0;
+ qc->pad_len = 0;
+ qc->sect_size = ATA_SECT_SIZE;
ata_tf_init(qc->dev, &qc->tf);
qc->result_tf.feature = 0;
}
-/**
- * ata_qc_complete - Complete an active ATA command
- * @qc: Command to complete
- * @err_mask: ATA Status register contents
- *
- * Indicate to the mid and upper layers that an ATA
- * command has completed, with either an ok or not-ok status.
- *
- * LOCKING:
- * spin_lock_irqsave(host_set lock)
- */
-static inline void ata_qc_complete(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
-
- if (unlikely(qc->flags & ATA_QCFLAG_EH_SCHEDULED))
- return;
-
- /* read result TF if failed or requested */
- if (qc->err_mask || qc->flags & ATA_QCFLAG_RESULT_TF)
- ap->ops->tf_read(ap, &qc->result_tf);
-
- __ata_qc_complete(qc);
-}
-
-/**
- * ata_irq_on - Enable interrupts on a port.
- * @ap: Port on which interrupts are enabled.
- *
- * Enable interrupts on a legacy IDE device using MMIO or PIO,
- * wait for idle, clear any pending interrupts.
- *
- * LOCKING:
- * Inherited from caller.
- */
-
-static inline u8 ata_irq_on(struct ata_port *ap)
-{
- struct ata_ioports *ioaddr = &ap->ioaddr;
- u8 tmp;
-
- ap->ctl &= ~ATA_NIEN;
- ap->last_ctl = ap->ctl;
-
- if (ap->flags & ATA_FLAG_MMIO)
- writeb(ap->ctl, (void __iomem *) ioaddr->ctl_addr);
- else
- outb(ap->ctl, ioaddr->ctl_addr);
- tmp = ata_wait_idle(ap);
-
- ap->ops->irq_clear(ap);
-
- return tmp;
-}
-
-
-/**
- * ata_irq_ack - Acknowledge a device interrupt.
- * @ap: Port on which interrupts are enabled.
- *
- * Wait up to 10 ms for legacy IDE device to become idle (BUSY
- * or BUSY+DRQ clear). Obtain dma status and port status from
- * device. Clear the interrupt. Return port status.
- *
- * LOCKING:
- */
-
-static inline u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq)
-{
- unsigned int bits = chk_drq ? ATA_BUSY | ATA_DRQ : ATA_BUSY;
- u8 host_stat, post_stat, status;
-
- status = ata_busy_wait(ap, bits, 1000);
- if (status & bits)
- if (ata_msg_err(ap))
- printk(KERN_ERR "abnormal status 0x%X\n", status);
-
- /* get controller status; clear intr, err bits */
- if (ap->flags & ATA_FLAG_MMIO) {
- void __iomem *mmio = (void __iomem *) ap->ioaddr.bmdma_addr;
- host_stat = readb(mmio + ATA_DMA_STATUS);
- writeb(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
- mmio + ATA_DMA_STATUS);
-
- post_stat = readb(mmio + ATA_DMA_STATUS);
- } else {
- host_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
- outb(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
- ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
-
- post_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
- }
-
- if (ata_msg_intr(ap))
- printk(KERN_INFO "%s: irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n",
- __FUNCTION__,
- host_stat, post_stat, status);
-
- return status;
-}
-
static inline int ata_try_flush_cache(const struct ata_device *dev)
{
return ata_id_wcache_enabled(dev->id) ||
static inline unsigned int ac_err_mask(u8 status)
{
- if (status & ATA_BUSY)
+ if (status & (ATA_BUSY | ATA_DRQ))
return AC_ERR_HSM;
if (status & (ATA_ERR | ATA_DF))
return AC_ERR_DEV;
static inline int ata_pad_alloc(struct ata_port *ap, struct device *dev)
{
ap->pad_dma = 0;
- ap->pad = dma_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ,
- &ap->pad_dma, GFP_KERNEL);
+ ap->pad = dmam_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ,
+ &ap->pad_dma, GFP_KERNEL);
return (ap->pad == NULL) ? -ENOMEM : 0;
}
static inline void ata_pad_free(struct ata_port *ap, struct device *dev)
{
- dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma);
+ dmam_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma);
}
static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host)
{
- return (struct ata_port *) &host->hostdata[0];
+ return *(struct ata_port **)&host->hostdata[0];
}
#endif /* __LINUX_LIBATA_H__ */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff