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libata: Add command definitions for NCQ Encapsulation for READ LOG DMA EXT 

ACS-4 defines an NCQ encapsulation for READ LOG DMA EXT.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Hannes Reinecke 2016-04-25 12:45:47 +02:00 committed by Tejun Heo
parent 5a2335512a
commit 5c65d8bb35
2 changed files with 12 additions and 0 deletions
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5
include/linux/ata.h
View File

@ -306,6 +306,9 @@ enum {
/* marked obsolete in the ATA/ATAPI-7 spec */
ATA_CMD_RESTORE = 0x10,
/* Subcmds for ATA_CMD_FPDMA_RECV */
ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT = 0x01,
/* Subcmds for ATA_CMD_FPDMA_SEND */
ATA_SUBCMD_FPDMA_SEND_DSM = 0x00,
ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT = 0x02,
@ -329,7 +332,9 @@ enum {
ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET = 0x04,
ATA_LOG_NCQ_SEND_RECV_DSM_TRIM = (1 << 0),
ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET = 0x08,
ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED = (1 << 0),
ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET = 0x0C,
ATA_LOG_NCQ_SEND_RECV_WR_LOG_SUPPORTED = (1 << 0),
ATA_LOG_NCQ_SEND_RECV_SIZE = 0x10,
/* READ/WRITE LONG (obsolete) */

7
include/linux/libata.h
View File

@ -1642,6 +1642,13 @@ static inline bool ata_fpdma_dsm_supported(struct ata_device *dev)
ATA_LOG_NCQ_SEND_RECV_DSM_TRIM);
}
static inline bool ata_fpdma_read_log_supported(struct ata_device *dev)
{
return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) &&
(dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET] &
ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED);
}
static inline void ata_qc_set_polling(struct ata_queued_cmd *qc)
{
qc->tf.ctl |= ATA_NIEN;