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ata: define ATA_PROT_* in terms of ATA_PROT_FLAG_*

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This avoid the need to always translate between the two in ata_prot_flags
and generally cleans up the taskfile protocol usage.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Christoph Hellwig 2016-07-16 22:16:43 +09:00 • committed by Tejun Heo
parent d6e50e379e
commit 37f92d77dc
3 changed files with 23 additions and 49 deletions
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28
include/linux/ata.h
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@ -523,17 +523,23 @@ enum {
SERR_DEV_XCHG = (1 << 26), /* device exchanged */
};
enum ata_tf_protocols {
/* ATA taskfile protocols */
ATA_PROT_UNKNOWN, /* unknown/invalid */
ATA_PROT_NODATA, /* no data */
ATA_PROT_PIO, /* PIO data xfer */
ATA_PROT_DMA, /* DMA */
ATA_PROT_NCQ, /* NCQ */
ATA_PROT_NCQ_NODATA, /* NCQ no data */
ATAPI_PROT_NODATA, /* packet command, no data */
ATAPI_PROT_PIO, /* packet command, PIO data xfer*/
ATAPI_PROT_DMA, /* packet command with special DMA sauce */
enum ata_prot_flags {
/* protocol flags */
ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */
ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */
ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */
ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */
/* taskfile protocols */
ATA_PROT_UNKNOWN = (u8)-1,
ATA_PROT_NODATA = 0,
ATA_PROT_PIO = ATA_PROT_FLAG_PIO,
ATA_PROT_DMA = ATA_PROT_FLAG_DMA,
ATA_PROT_NCQ_NODATA = ATA_PROT_FLAG_NCQ,
ATA_PROT_NCQ = ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ,
ATAPI_PROT_NODATA = ATA_PROT_FLAG_ATAPI,
ATAPI_PROT_PIO = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO,
ATAPI_PROT_DMA = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA,
};
enum ata_ioctls {