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| author | Tejun Heo <htejun@gmail.com> | 2006-05-15 14:03:43 +0200 |
|---|---|---|
| committer | Tejun Heo <htejun@gmail.com> | 2006-05-15 14:03:43 +0200 |
| commit | dedaf2b0365ccec50714fbde0b3215e7e94fa47c (patch) | |
| tree | d98e2a928793e6072d4ff65b0e2ceedaa600e25d /include | |
| parent | [PATCH] libata-ncq: rename ap->qactive to ap->qc_allocated (diff) | |
| download | linux-dedaf2b0365ccec50714fbde0b3215e7e94fa47c.tar.xz linux-dedaf2b0365ccec50714fbde0b3215e7e94fa47c.zip | |
[PATCH] libata-ncq: implement ap->qc_active, ap->sactive and complete helper
Add ap->qc_active and ap->sactive, mask of all active qcs and libata's
view of the SActive register, respectively. Also, implement
ata_qc_complete_multiple() which takes new qc_active mask and complete
multiple qcs according to the mask.
These will be used to track NCQ commands and complete them. The
distinction between ap->qc_active and ap->sactive is also useful for
later PM implementation.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/libata.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index b3a4f8bea828..dd0db2d21bc5 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -475,7 +475,10 @@ struct ata_port { struct ata_queued_cmd qcmd[ATA_MAX_QUEUE]; unsigned long qc_allocated; + unsigned int qc_active; + unsigned int active_tag; + u32 sactive; struct ata_host_stats stats; struct ata_host_set *host_set; @@ -668,6 +671,8 @@ extern void ata_bmdma_drive_eh(struct ata_port *ap, extern void ata_bmdma_error_handler(struct ata_port *ap); extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc); extern void ata_qc_complete(struct ata_queued_cmd *qc); +extern int ata_qc_complete_multiple(struct ata_port *ap, u32 qc_active, + void (*finish_qc)(struct ata_queued_cmd *)); extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)); extern int ata_std_bios_param(struct scsi_device *sdev, |