ATA_DFLAG_CFG_MASK = (1 << 8) - 1,
ATA_DFLAG_PIO = (1 << 8), /* device currently in PIO mode */
+ 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_PIO_POLLING = (1 << 10), /* use polling PIO if LLD
- * doesn't handle PIO interrupts */
- ATA_FLAG_NCQ = (1 << 11), /* host supports NCQ */
-
- ATA_FLAG_DEBUGMSG = (1 << 14),
- ATA_FLAG_FLUSH_PORT_TASK = (1 << 15), /* flush port task */
-
- ATA_FLAG_EH_PENDING = (1 << 16), /* EH pending */
+ 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_FLUSH_PORT_TASK = (1 << 14), /* flush port task */
+
+ ATA_FLAG_EH_PENDING = (1 << 15), /* EH pending */
+ ATA_FLAG_EH_IN_PROGRESS = (1 << 16), /* EH in progress */
ATA_FLAG_FROZEN = (1 << 17), /* port is frozen */
ATA_FLAG_RECOVERED = (1 << 18), /* recovery action performed */
+ ATA_FLAG_LOADING = (1 << 19), /* boot/loading probe */
+ ATA_FLAG_UNLOADING = (1 << 20), /* module is unloading */
+ ATA_FLAG_SCSI_HOTPLUG = (1 << 21), /* SCSI hotplug scheduled */
ATA_FLAG_DISABLED = (1 << 22), /* port is disabled, ignore it */
ATA_FLAG_SUSPENDED = (1 << 23), /* port is suspended (power) */
ATA_EH_RESET_MASK = ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
/* ata_eh_info->flags */
- ATA_EHI_DID_RESET = (1 << 0), /* already reset this port */
+ ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */
+
+ ATA_EHI_DID_RESET = (1 << 16), /* already reset this port */
/* max repeat if error condition is still set after ->error_handler */
ATA_EH_MAX_REPEAT = 5,
ATA_PROBE_MAX_TRIES = 3,
ATA_EH_RESET_TRIES = 3,
ATA_EH_DEV_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,
};
enum hsm_task_states {
/* 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 void (*ata_probeinit_fn_t)(struct ata_port *ap);
+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);
struct ata_ioports {
unsigned long cmd_addr;
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;
struct ata_ering ering;
};
+/* 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 flags; /* ATA_EHI_* flags */
+
+ unsigned long hotplug_timestamp;
+ 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 {
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_set lock */
u32 msg_enable;
struct list_head eh_done_q;
+ wait_queue_head_t eh_wait_q;
void *private_data;
#define FIT(v,vmin,vmax) max_t(short,min_t(short,v,vmax),vmin)
+extern const unsigned long sata_deb_timing_boot[];
+extern const unsigned long sata_deb_timing_eh[];
+extern const unsigned long sata_deb_timing_before_fsrst[];
+
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_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_prereset(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 void ata_std_postreset(struct ata_port *ap, unsigned int *classes);
unsigned int buflen, int write_data);
extern void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data);
+extern void ata_pio_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_bmdma_irq_clear(struct ata_port *ap);
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,
+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_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_reset_fn_t softreset,
- ata_reset_fn_t hardreset, ata_postreset_fn_t postreset);
+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
(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;
+ ehi->hotplug_timestamp = jiffies;
+
+ ehi->err_mask |= AC_ERR_ATA_BUS;
+ ehi->action |= ATA_EH_SOFTRESET;
+ ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1;
+}
+
/*
* qc helpers
*/
projects / powerpc.git / blobdiff