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Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6

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* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (41 commits)
  scc_pata: make use of scc_dma_sff_read_status()
  ide-dma-sff: factor out ide_dma_sff_write_status()
  ide: move read_sff_dma_status() method to 'struct ide_dma_ops'
  ide: don't set hwif->dma_ops in init_dma() method
  Resurrect IT8172 IDE controller driver
  piix: sync ich_laptop[] with ata_piix.c
  ide: update warm-plug HOWTO
  ide: fix ide_port_scan() to do ACPI setup after initializing request queues
  ide: remove now redundant ->cur_dev checks
  ide: remove unused ide_hwif_t.sg_mapped field
  ide: struct ide_atapi_pc - remove unused fields and update documentation
  ide: remove superfluous hwif variable assignment from ide_timer_expiry()
  ide: use ide_pci_is_in_compatibility_mode() helper in setup-pci.c
  ide: make "paranoia" ->handler check in ide_intr() more strict
  ide-cd: convert to ide-atapi facilities
  ide-cd: start DMA before sending the actual packet command
  ide-cd: wait for DRQ to get set per default
  ide: Fix drive's DWORD-IO handling
  ide: add port and host iterators
  ide: dynamic allocation of device structures
  ...
This commit is contained in:
Linus Torvalds
2009-01-06 17:00:50 -08:00
parent f59abb161c c2ce5ca047
commit 59e3af21e9
64 changed files with 1032 additions and 1180 deletions
Download Patch File Download Diff File Expand all files Collapse all files

171
include/linux/ide.h
View File

@@ -32,18 +32,14 @@
# define SUPPORT_VLB_SYNC 1
#endif
typedef unsigned char byte; /* used everywhere */
/*
* Probably not wise to fiddle with these
*/
#define IDE_DEFAULT_MAX_FAILURES 1
#define ERROR_MAX 8 /* Max read/write errors per sector */
#define ERROR_RESET 3 /* Reset controller every 4th retry */
#define ERROR_RECAL 1 /* Recalibrate every 2nd retry */
#define HWIF(drive) ((ide_hwif_t *)((drive)->hwif))
#define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup))
/*
* Definitions for accessing IDE controller registers
*/
@@ -185,9 +181,6 @@ typedef struct hw_regs_s {
unsigned long config;
} hw_regs_t;
void ide_init_port_data(struct hwif_s *, unsigned int);
void ide_init_port_hw(struct hwif_s *, hw_regs_t *);
static inline void ide_std_init_ports(hw_regs_t *hw,
unsigned long io_addr,
unsigned long ctl_addr)
@@ -433,18 +426,14 @@ struct ide_atapi_pc {
struct idetape_bh *bh;
char *b_data;
/* idescsi only for now */
struct scatterlist *sg;
unsigned int sg_cnt;
struct scsi_cmnd *scsi_cmd;
void (*done) (struct scsi_cmnd *);
unsigned long timeout;
};
struct ide_devset;
struct ide_driver_s;
struct ide_driver;
#ifdef CONFIG_BLK_DEV_IDEACPI
struct ide_acpi_drive_link;
@@ -588,7 +577,6 @@ struct ide_drive_s {
struct request_queue *queue; /* request queue */
struct request *rq; /* current request */
struct ide_drive_s *next; /* circular list of hwgroup drives */
void *driver_data; /* extra driver data */
u16 *id; /* identification info */
#ifdef CONFIG_IDE_PROC_FS
@@ -662,6 +650,8 @@ struct ide_drive_s {
int (*pc_io_buffers)(struct ide_drive_s *, struct ide_atapi_pc *,
unsigned int, int);
ide_startstop_t (*irq_handler)(struct ide_drive_s *);
unsigned long atapi_flags;
struct ide_atapi_pc request_sense_pc;
@@ -684,7 +674,6 @@ struct ide_tp_ops {
void (*exec_command)(struct hwif_s *, u8);
u8 (*read_status)(struct hwif_s *);
u8 (*read_altstatus)(struct hwif_s *);
u8 (*read_sff_dma_status)(struct hwif_s *);
void (*set_irq)(struct hwif_s *, int);
@@ -745,14 +734,17 @@ struct ide_dma_ops {
int (*dma_test_irq)(struct ide_drive_s *);
void (*dma_lost_irq)(struct ide_drive_s *);
void (*dma_timeout)(struct ide_drive_s *);
/*
* The following method is optional and only required to be
* implemented for the SFF-8038i compatible controllers.
*/
u8 (*dma_sff_read_status)(struct hwif_s *);
};
struct ide_host;
typedef struct hwif_s {
struct hwif_s *next; /* for linked-list in ide_hwgroup_t */
struct hwif_s *mate; /* other hwif from same PCI chip */
struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */
struct proc_dir_entry *proc; /* /proc/ide/ directory entry */
struct ide_host *host;
@@ -763,7 +755,7 @@ typedef struct hwif_s {
unsigned long sata_scr[SATA_NR_PORTS];
ide_drive_t drives[MAX_DRIVES]; /* drive info */
ide_drive_t *devices[MAX_DRIVES + 1];
u8 major; /* our major number */
u8 index; /* 0 for ide0; 1 for ide1; ... */
@@ -829,7 +821,7 @@ typedef struct hwif_s {
unsigned extra_ports; /* number of extra dma ports */
unsigned present : 1; /* this interface exists */
unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */
unsigned busy : 1; /* serializes devices on a port */
struct device gendev;
struct device *portdev;
@@ -841,19 +833,49 @@ typedef struct hwif_s {
#ifdef CONFIG_BLK_DEV_IDEACPI
struct ide_acpi_hwif_link *acpidata;
#endif
/* IRQ handler, if active */
ide_startstop_t (*handler)(ide_drive_t *);
/* BOOL: polling active & poll_timeout field valid */
unsigned int polling : 1;
/* current drive */
ide_drive_t *cur_dev;
/* current request */
struct request *rq;
/* failsafe timer */
struct timer_list timer;
/* timeout value during long polls */
unsigned long poll_timeout;
/* queried upon timeouts */
int (*expiry)(ide_drive_t *);
int req_gen;
int req_gen_timer;
spinlock_t lock;
} ____cacheline_internodealigned_in_smp ide_hwif_t;
#define MAX_HOST_PORTS 4
struct ide_host {
ide_hwif_t *ports[MAX_HOST_PORTS];
ide_hwif_t *ports[MAX_HOST_PORTS + 1];
unsigned int n_ports;
struct device *dev[2];
unsigned int (*init_chipset)(struct pci_dev *);
unsigned long host_flags;
void *host_priv;
ide_hwif_t *cur_port; /* for hosts requiring serialization */
/* used for hosts requiring serialization */
volatile long host_busy;
};
#define IDE_HOST_BUSY 0
/*
* internal ide interrupt handler type
*/
@@ -863,38 +885,6 @@ typedef int (ide_expiry_t)(ide_drive_t *);
/* used by ide-cd, ide-floppy, etc. */
typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned);
typedef struct hwgroup_s {
/* irq handler, if active */
ide_startstop_t (*handler)(ide_drive_t *);
/* BOOL: protects all fields below */
volatile int busy;
/* BOOL: polling active & poll_timeout field valid */
unsigned int polling : 1;
/* current drive */
ide_drive_t *drive;
/* ptr to current hwif in linked-list */
ide_hwif_t *hwif;
/* current request */
struct request *rq;
/* failsafe timer */
struct timer_list timer;
/* timeout value during long polls */
unsigned long poll_timeout;
/* queried upon timeouts */
int (*expiry)(ide_drive_t *);
int req_gen;
int req_gen_timer;
spinlock_t lock;
} ide_hwgroup_t;
typedef struct ide_driver_s ide_driver_t;
extern struct mutex ide_setting_mtx;
/*
@@ -1020,8 +1010,8 @@ void ide_proc_register_port(ide_hwif_t *);
void ide_proc_port_register_devices(ide_hwif_t *);
void ide_proc_unregister_device(ide_drive_t *);
void ide_proc_unregister_port(ide_hwif_t *);
void ide_proc_register_driver(ide_drive_t *, ide_driver_t *);
void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *);
void ide_proc_register_driver(ide_drive_t *, struct ide_driver *);
void ide_proc_unregister_driver(ide_drive_t *, struct ide_driver *);
read_proc_t proc_ide_read_capacity;
read_proc_t proc_ide_read_geometry;
@@ -1048,8 +1038,10 @@ static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; }
static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; }
static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; }
static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; }
static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
static inline void ide_proc_register_driver(ide_drive_t *drive,
struct ide_driver *driver) { ; }
static inline void ide_proc_unregister_driver(ide_drive_t *drive,
struct ide_driver *driver) { ; }
#define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0;
#endif
@@ -1118,11 +1110,10 @@ void ide_check_pm_state(ide_drive_t *, struct request *);
* The gendriver.owner field should be set to the module owner of this driver.
* The gendriver.name field should be set to the name of this driver
*/
struct ide_driver_s {
struct ide_driver {
const char *version;
ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t);
int (*end_request)(ide_drive_t *, int, int);
ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8);
struct device_driver gen_driver;
int (*probe)(ide_drive_t *);
void (*remove)(ide_drive_t *);
@@ -1134,7 +1125,7 @@ struct ide_driver_s {
#endif
};
#define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver)
#define to_ide_driver(drv) container_of(drv, struct ide_driver, gen_driver)
int ide_device_get(ide_drive_t *);
void ide_device_put(ide_drive_t *);
@@ -1166,9 +1157,7 @@ void ide_execute_pkt_cmd(ide_drive_t *);
void ide_pad_transfer(ide_drive_t *, int, int);
ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8);
ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat);
ide_startstop_t ide_error(ide_drive_t *, const char *, u8);
void ide_fix_driveid(u16 *);
@@ -1192,7 +1181,6 @@ void ide_tf_dump(const char *, struct ide_taskfile *);
void ide_exec_command(ide_hwif_t *, u8);
u8 ide_read_status(ide_hwif_t *);
u8 ide_read_altstatus(ide_hwif_t *);
u8 ide_read_sff_dma_status(ide_hwif_t *);
void ide_set_irq(ide_hwif_t *, int);
@@ -1272,26 +1260,6 @@ extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
extern void ide_timer_expiry(unsigned long);
extern irqreturn_t ide_intr(int irq, void *dev_id);
static inline int ide_lock_hwgroup(ide_hwgroup_t *hwgroup)
{
if (hwgroup->busy)
return 1;
hwgroup->busy = 1;
/* for atari only */
ide_get_lock(ide_intr, hwgroup);
return 0;
}
static inline void ide_unlock_hwgroup(ide_hwgroup_t *hwgroup)
{
/* for atari only */
ide_release_lock();
hwgroup->busy = 0;
}
extern void do_ide_request(struct request_queue *);
void ide_init_disk(struct gendisk *, ide_drive_t *);
@@ -1327,11 +1295,11 @@ static inline int ide_hwif_setup_dma(ide_hwif_t *hwif,
}
#endif
typedef struct ide_pci_enablebit_s {
struct ide_pci_enablebit {
u8 reg; /* byte pci reg holding the enable-bit */
u8 mask; /* mask to isolate the enable-bit */
u8 val; /* value of masked reg when "enabled" */
} ide_pci_enablebit_t;
};
enum {
/* Uses ISA control ports not PCI ones. */
@@ -1420,7 +1388,8 @@ struct ide_port_info {
const struct ide_port_ops *port_ops;
const struct ide_dma_ops *dma_ops;
ide_pci_enablebit_t enablebits[2];
struct ide_pci_enablebit enablebits[2];
hwif_chipset_t chipset;
u16 max_sectors; /* if < than the default one */
@@ -1492,6 +1461,7 @@ void ide_dma_exec_cmd(ide_drive_t *, u8);
extern void ide_dma_start(ide_drive_t *);
int ide_dma_end(ide_drive_t *);
int ide_dma_test_irq(ide_drive_t *);
u8 ide_dma_sff_read_status(ide_hwif_t *);
extern const struct ide_dma_ops sff_dma_ops;
#else
static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; }
@@ -1529,9 +1499,6 @@ static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; }
static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
#endif
void ide_remove_port_from_hwgroup(ide_hwif_t *);
void ide_unregister(ide_hwif_t *);
void ide_register_region(struct gendisk *);
void ide_unregister_region(struct gendisk *);
@@ -1616,23 +1583,6 @@ static inline void ide_set_max_pio(ide_drive_t *drive)
ide_set_pio(drive, 255);
}
extern spinlock_t ide_lock;
extern struct mutex ide_cfg_mtx;
/*
* Structure locking:
*
* ide_cfg_mtx and hwgroup->lock together protect changes to
* ide_hwif_t->next
* ide_drive_t->next
*
* ide_hwgroup_t->busy: hwgroup->lock
* ide_hwgroup_t->hwif: hwgroup->lock
* ide_hwif_t->{hwgroup,mate}: constant, no locking
* ide_drive_t->hwif: constant, no locking
*/
#define local_irq_set(flags) do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0)
char *ide_media_string(ide_drive_t *);
extern struct device_attribute ide_dev_attrs[];
@@ -1651,8 +1601,15 @@ static inline int hwif_to_node(ide_hwif_t *hwif)
static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
{
ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1];
ide_drive_t *peer = drive->hwif->devices[(drive->dn ^ 1) & 1];
return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL;
}
#define ide_port_for_each_dev(i, dev, port) \
for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)
#define ide_host_for_each_port(i, port, host) \
for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++)
#endif /* _IDE_H */

1
include/linux/pci_ids.h
View File

@@ -1658,6 +1658,7 @@
#define PCI_VENDOR_ID_ROCKWELL 0x127A
#define PCI_VENDOR_ID_ITE 0x1283
#define PCI_DEVICE_ID_ITE_8172 0x8172
#define PCI_DEVICE_ID_ITE_8211 0x8211
#define PCI_DEVICE_ID_ITE_8212 0x8212
#define PCI_DEVICE_ID_ITE_8213 0x8213