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ide: pass command to ide_map_sg()

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* Set IDE_TFLAG_WRITE flag and ->rq also for ATA_CMD_PACKET
  commands.

* Pass command to ->dma_setup method and update all its
  implementations accordingly.

* Pass command instead of request to ide_build_sglist(),
  *_build_dmatable() and ide_map_sg().

While at it:

* Fix scc_dma_setup() documentation + use ATA_DMA_WR define.

* Rename sgiioc4_build_dma_table() to sgiioc4_build_dmatable(),
  change return value type to 'int' and drop unused 'ddir'
  argument.

* Do some minor cleanups in [tx4939]ide_dma_setup().

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2009-03-27 12:46:46 +01:00
parent 130e886708
commit 2298169418
17 changed files with 101 additions and 114 deletions
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12
include/linux/ide.h
View file

@ -714,7 +714,7 @@ struct ide_port_ops {
struct ide_dma_ops {
void (*dma_host_set)(struct ide_drive_s *, int);
int (*dma_setup)(struct ide_drive_s *);
int (*dma_setup)(struct ide_drive_s *, struct ide_cmd *);
void (*dma_exec_cmd)(struct ide_drive_s *, u8);
void (*dma_start)(struct ide_drive_s *);
int (*dma_end)(struct ide_drive_s *);
@ -1412,7 +1412,7 @@ int ide_pci_resume(struct pci_dev *);
#define ide_pci_resume NULL
#endif
void ide_map_sg(ide_drive_t *, struct request *);
void ide_map_sg(ide_drive_t *, struct ide_cmd *);
void ide_init_sg_cmd(struct ide_cmd *, int);
#define BAD_DMA_DRIVE 0
@ -1447,14 +1447,14 @@ ide_startstop_t ide_dma_intr(ide_drive_t *);
int ide_allocate_dma_engine(ide_hwif_t *);
void ide_release_dma_engine(ide_hwif_t *);
int ide_build_sglist(ide_drive_t *, struct request *);
int ide_build_sglist(ide_drive_t *, struct ide_cmd *);
void ide_destroy_dmatable(ide_drive_t *);
#ifdef CONFIG_BLK_DEV_IDEDMA_SFF
int config_drive_for_dma(ide_drive_t *);
extern int ide_build_dmatable(ide_drive_t *, struct request *);
int ide_build_dmatable(ide_drive_t *, struct ide_cmd *);
void ide_dma_host_set(ide_drive_t *, int);
extern int ide_dma_setup(ide_drive_t *);
int ide_dma_setup(ide_drive_t *, struct ide_cmd *);
void ide_dma_exec_cmd(ide_drive_t *, u8);
extern void ide_dma_start(ide_drive_t *);
int ide_dma_end(ide_drive_t *);
@ -1482,7 +1482,7 @@ static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
static inline int ide_build_sglist(ide_drive_t *drive,
struct request *rq) { return 0; }
struct ide_cmd *cmd) { return 0; }
#endif /* CONFIG_BLK_DEV_IDEDMA */
#ifdef CONFIG_BLK_DEV_IDEACPI