diff options
Diffstat (limited to 'include/linux/libata.h')
| -rw-r--r-- | include/linux/libata.h | 336 |
1 files changed, 244 insertions, 92 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index a67bb9075e9..377e6d4d9be 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -28,9 +28,8 @@ #include <linux/delay.h> #include <linux/interrupt.h> -#include <linux/pci.h> #include <linux/dma-mapping.h> -#include <asm/scatterlist.h> +#include <linux/scatterlist.h> #include <linux/io.h> #include <linux/ata.h> #include <linux/workqueue.h> @@ -107,12 +106,6 @@ 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, @@ -139,11 +132,12 @@ enum { ATA_DFLAG_FLUSH_EXT = (1 << 4), /* do FLUSH_EXT instead of FLUSH */ ATA_DFLAG_ACPI_PENDING = (1 << 5), /* ACPI resume action pending */ ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */ - ATA_DFLAG_CFG_MASK = (1 << 8) - 1, + ATA_DFLAG_AN = (1 << 7), /* AN configured */ + ATA_DFLAG_CFG_MASK = (1 << 12) - 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_SPUNDOWN = (1 << 10), /* XXX: for spindown_compat */ + 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), @@ -154,7 +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 */ @@ -170,13 +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_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 @@ -195,6 +203,7 @@ enum { 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_SUSPENDED = (1 << 17), /* port is suspended (power) */ ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */ @@ -207,6 +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 */ @@ -263,6 +273,10 @@ enum { /* 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, @@ -270,6 +284,7 @@ enum { ATA_EH_REVALIDATE = (1 << 0), ATA_EH_SOFTRESET = (1 << 1), ATA_EH_HARDRESET = (1 << 2), + ATA_EH_ENABLE_LINK = (1 << 3), ATA_EH_RESET_MASK = ATA_EH_SOFTRESET | ATA_EH_HARDRESET, ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE, @@ -289,12 +304,16 @@ enum { 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_DEV_TRIES = 3, + ATA_EH_PMP_TRIES = 5, + ATA_EH_PMP_LINK_TRIES = 3, + + SATA_PMP_SCR_TIMEOUT = 250, /* Horkage types. May be set by libata or controller on drives (some horkage may be drive/controller pair dependant */ @@ -304,6 +323,14 @@ enum { 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 { @@ -333,14 +360,15 @@ enum ata_completion_errors { 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, unsigned long deadline); -typedef int (*ata_reset_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_port *ap, unsigned int *classes); +typedef void (*ata_postreset_fn_t)(struct ata_link *link, unsigned int *classes); struct ata_ioports { void __iomem *cmd_addr; @@ -363,8 +391,6 @@ struct ata_ioports { 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; @@ -390,6 +416,7 @@ 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; @@ -400,7 +427,7 @@ struct ata_queued_cmd { unsigned int nbytes; unsigned int curbytes; - unsigned int cursg; + struct scatterlist *cursg; unsigned int cursg_ofs; struct scatterlist sgent; @@ -436,7 +463,7 @@ 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 */ @@ -447,7 +474,12 @@ struct ata_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 */ - 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; @@ -510,6 +542,27 @@ struct ata_acpi_gtm { 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; @@ -533,23 +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 */ - unsigned int sata_spd; /* current SATA PHY speed */ - - /* 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; @@ -565,6 +612,7 @@ 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; @@ -582,8 +630,6 @@ struct ata_port { }; struct ata_port_operations { - void (*port_disable) (struct ata_port *); - void (*dev_config) (struct ata_device *); void (*set_piomode) (struct ata_port *, struct ata_device *); @@ -599,7 +645,7 @@ 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); int (*cable_detect) (struct ata_port *ap); @@ -610,9 +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. */ @@ -626,7 +677,6 @@ 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); 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); @@ -646,6 +696,7 @@ 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; @@ -689,38 +740,27 @@ 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 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, - 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, +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_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, +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_port *ap, unsigned int *classes); +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, - 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); -#endif /* CONFIG_PCI */ + 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); @@ -746,12 +786,12 @@ 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 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); @@ -765,7 +805,8 @@ extern void ata_port_queue_task(struct ata_port *ap, work_func_t fn, 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 @@ -787,6 +828,7 @@ 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); @@ -830,11 +872,8 @@ 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 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); @@ -869,8 +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) */ @@ -888,13 +948,29 @@ 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); @@ -912,14 +988,25 @@ extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset, #define ata_port_printk(ap, lv, fmt, 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->print_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 */ -extern void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); -extern void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); +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) @@ -933,10 +1020,21 @@ static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi) { ata_ehi_schedule_probe(ehi); ehi->flags |= ATA_EHI_HOTPLUGGED; + ehi->action |= ATA_EH_ENABLE_LINK; ehi->err_mask |= AC_ERR_ATA_BUS; } /* + * port description helpers + */ +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 int @@ -946,7 +1044,7 @@ ata_sg_is_last(struct scatterlist *sg, struct ata_queued_cmd *qc) return 1; if (qc->pad_len) return 0; - if (((sg - qc->__sg) + 1) == qc->n_elem) + if (qc->n_iter == qc->n_elem) return 1; return 0; } @@ -954,6 +1052,7 @@ ata_sg_is_last(struct scatterlist *sg, struct ata_queued_cmd *qc) 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) @@ -966,8 +1065,8 @@ 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; @@ -991,12 +1090,14 @@ 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) @@ -1020,15 +1121,62 @@ static inline unsigned int ata_dev_absent(const struct ata_device *dev) } /* - * port helpers + * link helpers */ -static inline int ata_port_max_devices(const struct ata_port *ap) +static inline int ata_is_host_link(const struct ata_link *link) +{ + return link == &link->ap->link; +} + +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) { @@ -1110,9 +1258,11 @@ static inline u8 ata_wait_idle(struct ata_port *ap) { u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); +#ifdef ATA_DEBUG if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) - DPRINTK("ATA: abnormal status 0x%X on port 0x%p\n", - status, ap->ioaddr.status_addr); + ata_port_printk(ap, KERN_DEBUG, "abnormal Status 0x%X\n", + status); +#endif return status; } @@ -1149,7 +1299,7 @@ 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 @@ -1161,9 +1311,11 @@ 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; |