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libata: separate PMP support code from core code

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Most of PMP support code is already in libata-pmp.c.  All that are in
libata-core.c are sata_pmp_port_ops and EXPORTs.  Move them to
libata-pmp.c.  Also, collect PMP related prototypes and declarations
in header files and move them right above of SFF stuff.

This change is to make PMP support optional.

Signed-off-by: Tejun Heo <htejun@gmail.com>
This commit is contained in:
Tejun Heo 2008-04-07 22:47:21 +09:00 committed by Jeff Garzik
parent 127102aea2
commit 48515f6c00
4 changed files with 27 additions and 25 deletions
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13
drivers/ata/libata-core.c
View File

@ -86,15 +86,6 @@ const struct ata_port_operations sata_port_ops = {
.hardreset = sata_std_hardreset,
};
const struct ata_port_operations sata_pmp_port_ops = {
.inherits = &sata_port_ops,
.pmp_prereset = ata_std_prereset,
.pmp_hardreset = sata_std_hardreset,
.pmp_postreset = ata_std_postreset,
.error_handler = sata_pmp_error_handler,
};
static unsigned int ata_dev_init_params(struct ata_device *dev,
u16 heads, u16 sectors);
static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
@ -6192,7 +6183,6 @@ EXPORT_SYMBOL_GPL(sata_deb_timing_hotplug);
EXPORT_SYMBOL_GPL(sata_deb_timing_long);
EXPORT_SYMBOL_GPL(ata_base_port_ops);
EXPORT_SYMBOL_GPL(sata_port_ops);
EXPORT_SYMBOL_GPL(sata_pmp_port_ops);
EXPORT_SYMBOL_GPL(ata_dummy_port_ops);
EXPORT_SYMBOL_GPL(ata_dummy_port_info);
EXPORT_SYMBOL_GPL(ata_std_bios_param);
@ -6272,9 +6262,6 @@ EXPORT_SYMBOL_GPL(ata_pci_device_resume);
#endif /* CONFIG_PM */
#endif /* CONFIG_PCI */
EXPORT_SYMBOL_GPL(sata_pmp_qc_defer_cmd_switch);
EXPORT_SYMBOL_GPL(sata_pmp_error_handler);
EXPORT_SYMBOL_GPL(__ata_ehi_push_desc);
EXPORT_SYMBOL_GPL(ata_ehi_push_desc);
EXPORT_SYMBOL_GPL(ata_ehi_clear_desc);

12
drivers/ata/libata-pmp.c
View File

@ -11,6 +11,14 @@
#include <linux/libata.h>
#include "libata.h"
const struct ata_port_operations sata_pmp_port_ops = {
.inherits = &sata_port_ops,
.pmp_prereset = ata_std_prereset,
.pmp_hardreset = sata_std_hardreset,
.pmp_postreset = ata_std_postreset,
.error_handler = sata_pmp_error_handler,
};
/**
* sata_pmp_read - read PMP register
* @link: link to read PMP register for
@ -1012,3 +1020,7 @@ void sata_pmp_error_handler(struct ata_port *ap)
sata_pmp_eh_recover(ap);
ata_eh_finish(ap);
}
EXPORT_SYMBOL_GPL(sata_pmp_port_ops);
EXPORT_SYMBOL_GPL(sata_pmp_qc_defer_cmd_switch);
EXPORT_SYMBOL_GPL(sata_pmp_error_handler);

10
drivers/ata/libata.h
View File

@ -179,11 +179,6 @@ extern void ata_schedule_scsi_eh(struct Scsi_Host *shost);
extern void ata_scsi_dev_rescan(struct work_struct *work);
extern int ata_bus_probe(struct ata_port *ap);
/* libata-pmp.c */
extern int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val);
extern int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val);
extern int sata_pmp_attach(struct ata_device *dev);
/* libata-eh.c */
extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
extern void ata_scsi_error(struct Scsi_Host *host);
@ -207,6 +202,11 @@ extern int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
struct ata_link **r_failed_disk);
extern void ata_eh_finish(struct ata_port *ap);
/* libata-pmp.c */
extern int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val);
extern int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val);
extern int sata_pmp_attach(struct ata_device *dev);
/* libata-sff.c */
#ifdef CONFIG_ATA_SFF
extern void ata_dev_select(struct ata_port *ap, unsigned int device,

17
include/linux/libata.h
View File

@ -1026,12 +1026,6 @@ static inline int ata_acpi_cbl_80wire(struct ata_port *ap,
}
#endif
/*
* PMP - drivers/ata/libata-pmp.c
*/
extern int sata_pmp_qc_defer_cmd_switch(struct ata_queued_cmd *qc);
extern void sata_pmp_error_handler(struct ata_port *ap);
/*
* EH - drivers/ata/libata-eh.c
*/
@ -1075,7 +1069,6 @@ extern void ata_std_error_handler(struct ata_port *ap);
*/
extern const struct ata_port_operations ata_base_port_ops;
extern const struct ata_port_operations sata_port_ops;
extern const struct ata_port_operations sata_pmp_port_ops;
#define ATA_BASE_SHT(drv_name) \
.module = THIS_MODULE, \
@ -1352,6 +1345,16 @@ static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host)
return *(struct ata_port **)&host->hostdata[0];
}
/**************************************************************************
* PMP - drivers/ata/libata-pmp.c
*/
extern const struct ata_port_operations sata_pmp_port_ops;
extern int sata_pmp_qc_defer_cmd_switch(struct ata_queued_cmd *qc);
extern void sata_pmp_error_handler(struct ata_port *ap);
/**************************************************************************
* SFF - drivers/ata/libata-sff.c
*/