X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Flibata.h;h=6fd24e03622ecd915a6a4160cfb400e1445c1d15;hb=838225b48edc971620cbeb292034dabd2b0d7d1d;hp=5db50fa594ac056cc3da3762a459f30b95b7848c;hpb=7d47e8d4d4fb0c3d3bdc706759e70d5453b61ec3;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/linux/libata.h b/include/linux/libata.h index 5db50fa..6fd24e0 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -28,9 +28,8 @@ #include #include -#include #include -#include +#include #include #include #include @@ -107,15 +106,10 @@ static inline u32 ata_msg_init(int dval, int default_msg_enable_bits) /* defines only for the constants which don't work well as enums */ #define ATA_TAG_POISON 0xfafbfcfdU -/* move to PCI layer? */ -static inline struct device *pci_dev_to_dev(struct pci_dev *pdev) -{ - return &pdev->dev; -} - enum { /* various global constants */ LIBATA_MAX_PRD = ATA_MAX_PRD / 2, + LIBATA_DUMB_MAX_PRD = ATA_MAX_PRD / 4, /* Worst case */ ATA_MAX_PORTS = 8, ATA_DEF_QUEUE = 1, /* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */ @@ -136,11 +130,14 @@ enum { 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 limited to PIO mode */ - ATA_DFLAG_NCQ_OFF = (1 << 9), /* device limited to non-NCQ mode */ - ATA_DFLAG_SUSPENDED = (1 << 10), /* device suspended */ + ATA_DFLAG_ACPI_PENDING = (1 << 5), /* ACPI resume action pending */ + ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */ + ATA_DFLAG_AN = (1 << 7), /* AN configured */ + ATA_DFLAG_CFG_MASK = (1 << 12) - 1, + + ATA_DFLAG_PIO = (1 << 12), /* device limited to PIO mode */ + ATA_DFLAG_NCQ_OFF = (1 << 13), /* device limited to non-NCQ mode */ + ATA_DFLAG_SPUNDOWN = (1 << 14), /* XXX: for spindown_compat */ ATA_DFLAG_INIT_MASK = (1 << 16) - 1, ATA_DFLAG_DETACH = (1 << 16), @@ -151,7 +148,22 @@ enum { ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */ ATA_DEV_ATAPI = 3, /* ATAPI device */ ATA_DEV_ATAPI_UNSUP = 4, /* ATAPI device (unsupported) */ - ATA_DEV_NONE = 5, /* no device */ + 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) */ + ATA_DEV_NONE = 9, /* no device */ + + /* struct ata_link flags */ + ATA_LFLAG_HRST_TO_RESUME = (1 << 0), /* hardreset to resume link */ + ATA_LFLAG_SKIP_D2H_BSY = (1 << 1), /* can't wait for the first D2H + * Register FIS clearing BSY */ + 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, + ATA_LFLAG_NO_RETRY = (1 << 5), /* don't retry this link */ + ATA_LFLAG_DISABLED = (1 << 6), /* link is disabled */ /* struct ata_port flags */ ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */ @@ -167,13 +179,12 @@ enum { 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 */ + ATA_FLAG_AN = (1 << 18), /* controller supports AN */ + ATA_FLAG_PMP = (1 << 19), /* controller supports PMP */ /* The following flag belongs to ap->pflags but is kept in * ap->flags because it's referenced in many LLDs and will be @@ -191,10 +202,12 @@ enum { 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 */ + ATA_PFLAG_RESETTING = (1 << 8), /* reset in progress */ - 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 */ + ATA_PFLAG_GTM_VALID = (1 << 19), /* acpi_gtm data valid */ /* struct ata_queued_cmd flags */ ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */ @@ -203,6 +216,7 @@ enum { ATA_QCFLAG_DMAMAP = ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE, ATA_QCFLAG_IO = (1 << 3), /* standard IO command */ ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */ + ATA_QCFLAG_CLEAR_EXCL = (1 << 5), /* clear excl_link on completion */ ATA_QCFLAG_FAILED = (1 << 16), /* cmd failed and is owned by EH */ ATA_QCFLAG_SENSE_VALID = (1 << 17), /* sense data valid */ @@ -210,6 +224,9 @@ enum { /* host set flags */ ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */ + ATA_HOST_STARTED = (1 << 1), /* Host started */ + + /* bits 24:31 of host->flags are reserved for LLD specific flags */ /* various lengths of time */ ATA_TMOUT_BOOT = 30 * HZ, /* heuristic */ @@ -253,13 +270,13 @@ enum { 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, + /* return values for ->qc_defer */ + ATA_DEFER_LINK = 1, + ATA_DEFER_PORT = 2, + /* desc_len for ata_eh_info and context */ ATA_EH_DESC_LEN = 80, @@ -267,13 +284,10 @@ enum { ATA_EH_REVALIDATE = (1 << 0), ATA_EH_SOFTRESET = (1 << 1), ATA_EH_HARDRESET = (1 << 2), - ATA_EH_SUSPEND = (1 << 3), - ATA_EH_RESUME = (1 << 4), - ATA_EH_PM_FREEZE = (1 << 5), + ATA_EH_ENABLE_LINK = (1 << 3), ATA_EH_RESET_MASK = ATA_EH_SOFTRESET | ATA_EH_HARDRESET, - ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_SUSPEND | - ATA_EH_RESUME | ATA_EH_PM_FREEZE, + ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE, /* ata_eh_info->flags */ ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */ @@ -281,29 +295,25 @@ enum { ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */ ATA_EHI_QUIET = (1 << 3), /* be quiet */ - ATA_EHI_DID_RESET = (1 << 16), /* already reset this port */ - ATA_EHI_PRINTINFO = (1 << 17), /* print configuration info */ - ATA_EHI_SETMODE = (1 << 18), /* configure transfer mode */ - ATA_EHI_POST_SETMODE = (1 << 19), /* revaildating after setmode */ + 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, + /* max tries if error condition is still set after ->error_handler */ + ATA_EH_MAX_TRIES = 5, /* how hard are we gonna try to probe/recover devices */ ATA_PROBE_MAX_TRIES = 3, - ATA_EH_RESET_TRIES = 3, ATA_EH_DEV_TRIES = 3, + ATA_EH_PMP_TRIES = 5, + ATA_EH_PMP_LINK_TRIES = 3, - /* Drive spinup time (time from power-on to the first D2H FIS) - * in msecs - 8s currently. Failing to get ready in this time - * isn't critical. It will result in reset failure for - * controllers which can't wait for the first D2H FIS. libata - * will retry, so it just has to be long enough to spin up - * most devices. - */ - ATA_SPINUP_WAIT = 8000, + SATA_PMP_SCR_TIMEOUT = 250, /* Horkage types. May be set by libata or controller on drives (some horkage may be drive/controller pair dependant */ @@ -311,15 +321,25 @@ enum { 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_BROKEN_HPA = (1 << 4), /* Broken HPA */ + ATA_HORKAGE_SKIP_PM = (1 << 5), /* Skip PM operations */ + ATA_HORKAGE_HPA_SIZE = (1 << 6), /* native size off by one */ + + /* DMA mask for user DMA control: User visible values; DO NOT + 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 */ }; enum hsm_task_states { 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 */ - HSM_ST_FIRST, /* (waiting the device to) - write CDB or first data block */ }; enum ata_completion_errors { @@ -333,19 +353,22 @@ enum ata_completion_errors { AC_ERR_INVALID = (1 << 7), /* invalid argument */ AC_ERR_OTHER = (1 << 8), /* unknown */ AC_ERR_NODEV_HINT = (1 << 9), /* polling device detection hint */ + AC_ERR_NCQ = (1 << 10), /* marker for offending NCQ qc */ }; /* forward declarations */ struct scsi_device; struct ata_port_operations; struct ata_port; +struct ata_link; struct ata_queued_cmd; /* typedefs */ typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc); -typedef int (*ata_prereset_fn_t)(struct ata_port *ap); -typedef int (*ata_reset_fn_t)(struct ata_port *ap, unsigned int *classes); -typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *classes); +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, + unsigned long deadline); +typedef void (*ata_postreset_fn_t)(struct ata_link *link, unsigned int *classes); struct ata_ioports { void __iomem *cmd_addr; @@ -365,46 +388,18 @@ struct ata_ioports { 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 dummy_port_mask; - unsigned int pio_mask; - unsigned int mwdma_mask; - unsigned int udma_mask; - unsigned long irq; - unsigned long irq2; - unsigned int irq_flags; - unsigned long port_flags; - unsigned long _host_flags; - void __iomem * const *iomap; - void *private_data; - - /* port_info for the secondary port. Together with irq2, it's - * used to implement non-uniform secondary port. Currently, - * the only user is ata_piix combined mode. This workaround - * will be removed together with ata_probe_ent when init model - * is updated. - */ - const struct ata_port_info *pinfo2; -}; - struct ata_host { spinlock_t lock; struct device *dev; - unsigned long irq; - 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 */ +#ifdef CONFIG_ATA_ACPI + acpi_handle acpi_handle; +#endif + struct ata_port *simplex_claimed; /* channel owning the DMA */ struct ata_port *ports[0]; }; @@ -421,16 +416,18 @@ struct ata_queued_cmd { unsigned long flags; /* ATA_QCFLAG_xxx */ unsigned int tag; unsigned int n_elem; + unsigned int n_iter; unsigned int orig_n_elem; int dma_dir; unsigned int pad_len; + unsigned int sect_size; unsigned int nbytes; unsigned int curbytes; - unsigned int cursg; + struct scatterlist *cursg; unsigned int cursg_ofs; struct scatterlist sgent; @@ -445,6 +442,7 @@ struct ata_queued_cmd { ata_qc_cb_t complete_fn; void *private_data; + void *lldd_task; }; struct ata_port_stats { @@ -465,14 +463,23 @@ struct ata_ering { }; struct ata_device { - struct ata_port *ap; + struct ata_link *link; unsigned int devno; /* 0 or 1 */ unsigned long flags; /* ATA_DFLAG_xxx */ + unsigned int horkage; /* List of broken features */ struct scsi_device *sdev; /* attached SCSI device */ +#ifdef CONFIG_ATA_ACPI + acpi_handle acpi_handle; +#endif /* 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 */ - u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */ + + union { + u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */ + u32 gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */ + }; + u8 pio_mode; u8 dma_mode; u8 xfer_mode; @@ -496,11 +503,6 @@ struct ata_device { /* error history */ struct ata_ering ering; int spdn_cnt; - unsigned int horkage; /* List of broken features */ -#ifdef CONFIG_SATA_ACPI - /* ACPI objects info */ - acpi_handle obj_handle; -#endif }; /* Offset into struct ata_device. Fields above it are maintained @@ -516,7 +518,6 @@ struct ata_eh_info { unsigned int dev_action[ATA_MAX_DEVICES]; /* dev EH action */ unsigned int flags; /* ATA_EHI_* flags */ - unsigned long hotplug_timestamp; unsigned int probe_mask; char desc[ATA_EH_DESC_LEN]; @@ -530,14 +531,46 @@ struct ata_eh_context { unsigned int did_probe_mask; }; +struct ata_acpi_drive +{ + u32 pio; + u32 dma; +} __packed; + +struct ata_acpi_gtm { + struct ata_acpi_drive drive[2]; + u32 flags; +} __packed; + +struct ata_link { + struct ata_port *ap; + int pmp; /* port multiplier port # */ + + unsigned int active_tag; /* active tag on this link */ + u32 sactive; /* active NCQ commands */ + + unsigned int flags; /* ATA_LFLAG_xxx */ + + unsigned int hw_sata_spd_limit; + unsigned int sata_spd_limit; + unsigned int sata_spd; /* current SATA PHY speed */ + + /* 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]; +}; + struct ata_port { 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 pflags; /* ATA_PFLAG_xxx */ - unsigned int id; /* unique id req'd by scsi midlyr */ - unsigned int port_no; /* unique port #; from zero */ + 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 */ @@ -553,22 +586,17 @@ struct ata_port { 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 qc_allocated; unsigned int qc_active; + int nr_active_links; /* #links with active qcs */ + + struct ata_link link; /* host default link */ - unsigned int active_tag; - u32 sactive; + int nr_pmp_links; /* nr of available PMP links */ + struct ata_link *pmp_link; /* array of PMP links */ + struct ata_link *excl_link; /* for PMP qc exclusion */ struct ata_port_stats stats; struct ata_host *host; @@ -584,23 +612,29 @@ struct ata_port { u32 msg_enable; struct list_head eh_done_q; wait_queue_head_t eh_wait_q; + int eh_tries; pm_message_t pm_mesg; int *pm_result; + struct timer_list fastdrain_timer; + unsigned long fastdrain_cnt; + void *private_data; +#ifdef CONFIG_ATA_ACPI + acpi_handle acpi_handle; + struct ata_acpi_gtm acpi_gtm; +#endif u8 sector_buf[ATA_SECT_SIZE]; /* owned by EH */ }; 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); @@ -611,9 +645,9 @@ struct ata_port_operations { void (*dev_select)(struct ata_port *ap, unsigned int device); void (*phy_reset) (struct ata_port *ap); /* obsolete */ - int (*set_mode) (struct ata_port *ap, struct ata_device **r_failed_dev); + int (*set_mode) (struct ata_link *link, 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); @@ -622,9 +656,14 @@ struct ata_port_operations { void (*data_xfer) (struct ata_device *, unsigned char *, unsigned int, int); + int (*qc_defer) (struct ata_queued_cmd *qc); void (*qc_prep) (struct ata_queued_cmd *qc); unsigned int (*qc_issue) (struct ata_queued_cmd *qc); + /* port multiplier */ + void (*pmp_attach) (struct ata_port *ap); + void (*pmp_detach) (struct ata_port *ap); + /* Error handlers. ->error_handler overrides ->eng_timeout and * indicates that new-style EH is in place. */ @@ -638,11 +677,9 @@ struct ata_port_operations { 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 (*scr_read) (struct ata_port *ap, unsigned int sc_reg, u32 *val); + int (*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); @@ -659,10 +696,12 @@ struct ata_port_operations { struct ata_port_info { struct scsi_host_template *sht; unsigned long flags; + unsigned long link_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; }; @@ -678,13 +717,14 @@ struct ata_timing { unsigned short udma; /* t2CYCTYP/2 */ }; -#define FIT(v,vmin,vmax) max_t(short,min_t(short,v,vmax),vmin) +#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) @@ -700,32 +740,36 @@ 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_link *link); 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 sata_phy_debounce(struct ata_port *ap, const unsigned long *param); -extern int sata_phy_resume(struct ata_port *ap, const unsigned long *param); -extern int ata_std_prereset(struct ata_port *ap); -extern int ata_std_softreset(struct ata_port *ap, unsigned int *classes); -extern int sata_port_hardreset(struct ata_port *ap, - const unsigned long *timing); -extern int sata_std_hardreset(struct ata_port *ap, unsigned int *class); -extern void ata_std_postreset(struct ata_port *ap, unsigned int *classes); +extern int sata_set_spd(struct ata_link *link); +extern int sata_link_debounce(struct ata_link *link, + const unsigned long *params, unsigned long deadline); +extern int sata_link_resume(struct ata_link *link, const unsigned long *params, + unsigned long deadline); +extern int ata_std_prereset(struct ata_link *link, unsigned long deadline); +extern int ata_std_softreset(struct ata_link *link, unsigned int *classes, + unsigned long deadline); +extern int sata_link_hardreset(struct ata_link *link, + const unsigned long *timing, unsigned long deadline); +extern int sata_std_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline); +extern void ata_std_postreset(struct ata_link *link, unsigned int *classes); 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 void ata_pci_remove_one (struct pci_dev *pdev); -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); -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 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 *); @@ -742,44 +786,50 @@ 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(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 mesg); +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); +extern int ata_link_online(struct ata_link *link); +extern int ata_link_offline(struct ata_link *link); +#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 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 *); +extern unsigned int ata_dev_try_classify(struct ata_device *dev, int present, + u8 *r_err); /* * Default driver ops implementations */ extern void ata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf); extern void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf); -extern void ata_tf_to_fis(const struct ata_taskfile *tf, u8 *fis, u8 pmp); +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); -extern void ata_noop_dev_select (struct ata_port *ap, unsigned int device); -extern void ata_std_dev_select (struct ata_port *ap, unsigned int device); +extern void ata_noop_dev_select(struct ata_port *ap, unsigned int device); +extern void ata_std_dev_select(struct ata_port *ap, unsigned int device); 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_port_start (struct ata_port *ap); -extern irqreturn_t ata_interrupt (int irq, void *dev_instance); +extern int ata_port_start(struct ata_port *ap); +extern int ata_sff_port_start(struct ata_port *ap); +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 int ata_std_qc_defer(struct ata_queued_cmd *qc); +extern void ata_dumb_qc_prep(struct ata_queued_cmd *qc); 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); @@ -788,13 +838,14 @@ extern void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf, 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 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_id_to_dma_mode(struct ata_device *dev, u8 unknown); +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); @@ -821,10 +872,13 @@ 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_link *link, 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 @@ -854,8 +908,29 @@ enum { ATA_TIMING_CYCLE | ATA_TIMING_UDMA, }; +/* libata-acpi.c */ +#ifdef CONFIG_ATA_ACPI +extern int ata_acpi_cbl_80wire(struct ata_port *ap); +int ata_acpi_stm(const struct ata_port *ap, struct ata_acpi_gtm *stm); +int ata_acpi_gtm(const struct ata_port *ap, struct ata_acpi_gtm *stm); +#else +static inline int ata_acpi_cbl_80wire(struct ata_port *ap) { return 0; } +#endif #ifdef CONFIG_PCI +struct pci_dev; + +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); +#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); + struct pci_bits { unsigned int reg; /* PCI config register to read */ unsigned int width; /* 1 (8 bit), 2 (16 bit), 4 (32 bit) */ @@ -863,20 +938,39 @@ struct pci_bits { unsigned long val; }; -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_sff_host(struct ata_host *host); +extern int ata_pci_init_bmdma(struct ata_host *host); +extern int ata_pci_prepare_sff_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 */ /* + * PMP + */ +extern int sata_pmp_qc_defer_cmd_switch(struct ata_queued_cmd *qc); +extern int sata_pmp_std_prereset(struct ata_link *link, unsigned long deadline); +extern int sata_pmp_std_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline); +extern void sata_pmp_std_postreset(struct ata_link *link, unsigned int *class); +extern void sata_pmp_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, + ata_prereset_fn_t pmp_prereset, ata_reset_fn_t pmp_softreset, + ata_reset_fn_t pmp_hardreset, ata_postreset_fn_t pmp_postreset); + +/* * EH */ extern void ata_eng_timeout(struct ata_port *ap); extern void ata_port_schedule_eh(struct ata_port *ap); +extern int ata_link_abort(struct ata_link *link); extern int ata_port_abort(struct ata_port *ap); extern int ata_port_freeze(struct ata_port *ap); +extern int sata_async_notification(struct ata_port *ap); extern void ata_eh_freeze_port(struct ata_port *ap); extern void ata_eh_thaw_port(struct ata_port *ap); @@ -892,61 +986,61 @@ extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset, * 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_link_printk(link, lv, fmt, args...) do { \ + if ((link)->ap->nr_pmp_links) \ + printk(lv"ata%u.%02u: "fmt, (link)->ap->print_id, \ + (link)->pmp , ##args); \ + else \ + printk(lv"ata%u: "fmt, (link)->ap->print_id , ##args); \ + } while(0) #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)->link->ap->print_id, \ + (dev)->link->pmp + (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) -{ - if (ehi->flags & ATA_EHI_HOTPLUGGED) - return; - - ehi->flags |= ATA_EHI_HOTPLUGGED | ATA_EHI_RESUME_LINK; - ehi->hotplug_timestamp = jiffies; +extern void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); +extern void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); +extern void ata_ehi_clear_desc(struct ata_eh_info *ehi); +static inline void ata_ehi_schedule_probe(struct ata_eh_info *ehi) +{ + ehi->flags |= 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); + ata_ehi_schedule_probe(ehi); + ehi->flags |= ATA_EHI_HOTPLUGGED; + ehi->action |= ATA_EH_ENABLE_LINK; ehi->err_mask |= AC_ERR_ATA_BUS; } /* - * qc helpers + * port description helpers */ -static inline int -ata_sg_is_last(struct scatterlist *sg, struct ata_queued_cmd *qc) -{ - if (sg == &qc->pad_sgent) - return 1; - if (qc->pad_len) - return 0; - if (((sg - qc->__sg) + 1) == qc->n_elem) - return 1; - return 0; -} +extern void ata_port_desc(struct ata_port *ap, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); +#ifdef CONFIG_PCI +extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset, + const char *name); +#endif +/* + * qc helpers + */ static inline struct scatterlist * ata_qc_first_sg(struct ata_queued_cmd *qc) { + qc->n_iter = 0; if (qc->n_elem) return qc->__sg; if (qc->pad_len) @@ -959,8 +1053,8 @@ ata_qc_next_sg(struct scatterlist *sg, struct ata_queued_cmd *qc) { if (sg == &qc->pad_sgent) return NULL; - if (++sg - qc->__sg < qc->n_elem) - return sg; + if (++qc->n_iter < qc->n_elem) + return sg_next(sg); if (qc->pad_len) return &qc->pad_sgent; return NULL; @@ -984,12 +1078,14 @@ static inline unsigned int ata_tag_internal(unsigned int tag) */ static inline unsigned int ata_class_enabled(unsigned int class) { - return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI; + return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI || + class == ATA_DEV_PMP || class == ATA_DEV_SEMB; } static inline unsigned int ata_class_disabled(unsigned int class) { - return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP; + return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP || + class == ATA_DEV_PMP_UNSUP || class == ATA_DEV_SEMB_UNSUP; } static inline unsigned int ata_class_absent(unsigned int class) @@ -1012,27 +1108,84 @@ static inline unsigned int ata_dev_absent(const struct ata_device *dev) return ata_class_absent(dev->class); } -static inline unsigned int ata_dev_ready(const struct ata_device *dev) +/* + * link helpers + */ +static inline int ata_is_host_link(const struct ata_link *link) { - return ata_dev_enabled(dev) && !(dev->flags & ATA_DFLAG_SUSPENDED); + return link == &link->ap->link; } -/* - * port helpers - */ -static inline int ata_port_max_devices(const struct ata_port *ap) +static inline int ata_link_max_devices(const struct ata_link *link) { - if (ap->flags & ATA_FLAG_SLAVE_POSS) + if (ata_is_host_link(link) && link->ap->flags & ATA_FLAG_SLAVE_POSS) return 2; return 1; } +static inline int ata_link_active(struct ata_link *link) +{ + return ata_tag_valid(link->active_tag) || link->sactive; +} + +static inline struct ata_link *ata_port_first_link(struct ata_port *ap) +{ + if (ap->nr_pmp_links) + return ap->pmp_link; + return &ap->link; +} + +static inline struct ata_link *ata_port_next_link(struct ata_link *link) +{ + struct ata_port *ap = link->ap; + + if (link == &ap->link) { + if (!ap->nr_pmp_links) + return NULL; + return ap->pmp_link; + } + + if (++link - ap->pmp_link < ap->nr_pmp_links) + return link; + return NULL; +} + +#define __ata_port_for_each_link(lk, ap) \ + for ((lk) = &(ap)->link; (lk); (lk) = ata_port_next_link(lk)) + +#define ata_port_for_each_link(link, ap) \ + for ((link) = ata_port_first_link(ap); (link); \ + (link) = ata_port_next_link(link)) + +#define ata_link_for_each_dev(dev, link) \ + for ((dev) = (link)->device; \ + (dev) < (link)->device + ata_link_max_devices(link) || ((dev) = NULL); \ + (dev)++) + +#define ata_link_for_each_dev_reverse(dev, link) \ + for ((dev) = (link)->device + ata_link_max_devices(link) - 1; \ + (dev) >= (link)->device || ((dev) = NULL); (dev)--) 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. @@ -1093,11 +1246,11 @@ static inline u8 ata_wait_idle(struct ata_port *ap) { u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); - if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) { - if (ata_msg_warn(ap)) - printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%p\n", - status, ap->ioaddr.status_addr); - } +#ifdef ATA_DEBUG + if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) + ata_port_printk(ap, KERN_DEBUG, "abnormal Status 0x%X\n", + status); +#endif return status; } @@ -1134,7 +1287,7 @@ static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf) { memset(tf, 0, sizeof(*tf)); - tf->ctl = dev->ap->ctl; + tf->ctl = dev->link->ap->ctl; if (dev->devno == 0) tf->device = ATA_DEVICE_OBS; else @@ -1146,11 +1299,14 @@ static inline void ata_qc_reinit(struct ata_queued_cmd *qc) qc->dma_dir = DMA_NONE; qc->__sg = NULL; qc->flags = 0; - qc->cursg = qc->cursg_ofs = 0; + qc->cursg = NULL; + qc->cursg_ofs = 0; qc->nbytes = qc->curbytes = 0; qc->n_elem = 0; + qc->n_iter = 0; qc->err_mask = 0; qc->pad_len = 0; + qc->sect_size = ATA_SECT_SIZE; ata_tf_init(qc->dev, &qc->tf); @@ -1198,7 +1354,7 @@ static inline void ata_pad_free(struct ata_port *ap, struct device *dev) 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__ */