提交 e0a71752 编写于 作者: T Tejun Heo 提交者: Jeff Garzik

libata-pmp-prep: add PMP related constants, fields, ops and update helpers

Add PMP related constants, fields and ops.  Also, update
ata_class_enabled/disabled() such that PMP classes are considered.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
上级 854c73a2
...@@ -155,7 +155,11 @@ enum { ...@@ -155,7 +155,11 @@ enum {
ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */ ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */
ATA_DEV_ATAPI = 3, /* ATAPI device */ ATA_DEV_ATAPI = 3, /* ATAPI device */
ATA_DEV_ATAPI_UNSUP = 4, /* ATAPI device (unsupported) */ 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 */ /* struct ata_link flags */
ATA_LFLAG_HRST_TO_RESUME = (1 << 0), /* hardreset to resume link */ ATA_LFLAG_HRST_TO_RESUME = (1 << 0), /* hardreset to resume link */
...@@ -181,6 +185,7 @@ enum { ...@@ -181,6 +185,7 @@ enum {
ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */ ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */
ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */ ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */
ATA_FLAG_AN = (1 << 18), /* controller supports AN */ 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 /* The following flag belongs to ap->pflags but is kept in
* ap->flags because it's referenced in many LLDs and will be * ap->flags because it's referenced in many LLDs and will be
...@@ -299,6 +304,10 @@ enum { ...@@ -299,6 +304,10 @@ enum {
/* how hard are we gonna try to probe/recover devices */ /* how hard are we gonna try to probe/recover devices */
ATA_PROBE_MAX_TRIES = 3, ATA_PROBE_MAX_TRIES = 3,
ATA_EH_DEV_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 /* Horkage types. May be set by libata or controller on drives
(some horkage may be drive/controller pair dependant */ (some horkage may be drive/controller pair dependant */
...@@ -450,7 +459,12 @@ struct ata_device { ...@@ -450,7 +459,12 @@ struct ata_device {
/* n_sector is used as CLEAR_OFFSET, read comment above CLEAR_OFFSET */ /* n_sector is used as CLEAR_OFFSET, read comment above CLEAR_OFFSET */
u64 n_sectors; /* size of device, if ATA */ u64 n_sectors; /* size of device, if ATA */
unsigned int class; /* ATA_DEV_xxx */ 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 pio_mode;
u8 dma_mode; u8 dma_mode;
u8 xfer_mode; u8 xfer_mode;
...@@ -628,6 +642,12 @@ struct ata_port_operations { ...@@ -628,6 +642,12 @@ struct ata_port_operations {
void (*qc_prep) (struct ata_queued_cmd *qc); void (*qc_prep) (struct ata_queued_cmd *qc);
unsigned int (*qc_issue) (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);
int (*pmp_read) (struct ata_device *dev, int pmp, int reg, u32 *r_val);
int (*pmp_write) (struct ata_device *dev, int pmp, int reg, u32 val);
/* Error handlers. ->error_handler overrides ->eng_timeout and /* Error handlers. ->error_handler overrides ->eng_timeout and
* indicates that new-style EH is in place. * indicates that new-style EH is in place.
*/ */
...@@ -1033,12 +1053,14 @@ static inline unsigned int ata_tag_internal(unsigned int tag) ...@@ -1033,12 +1053,14 @@ static inline unsigned int ata_tag_internal(unsigned int tag)
*/ */
static inline unsigned int ata_class_enabled(unsigned int class) 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) 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) static inline unsigned int ata_class_absent(unsigned int class)
......
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