Commit 5c65d8bb authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Tejun Heo
Browse files

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: default avatarHannes Reinecke <hare@suse.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 5a233551

include/linux/ata.h

+5 −0
Original line number Diff line number Diff line
@@ -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) */

include/linux/libata.h

+7 −0
Original line number Diff line number Diff line
@@ -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;