From: Tejun Heo <htejun@gmail.com>
To: jgarzik@pobox.com, alan@lxorguk.ukuu.org.uk, lkml@rtr.ca,
axboe@suse.de, forrest.zhao@intel.com, linux-ide@vger.kernel.org
Cc: Tejun Heo <htejun@gmail.com>
Subject: [PATCH 06/12] libata: add ata_port_nr_ready()
Date: Mon, 17 Jul 2006 15:52:32 +0900 [thread overview]
Message-ID: <11531191523566-git-send-email-htejun@gmail.com> (raw)
In-Reply-To: <11531191512028-git-send-email-htejun@gmail.com>
Add ready counting function - ata_port_nr_ready(). This is in
preparation for powersave support.
Signed-off-by: Tejun Heo <htejun@gmail.com>
---
drivers/scsi/libata-core.c | 10 ++++++++++
drivers/scsi/libata.h | 1 +
2 files changed, 11 insertions(+), 0 deletions(-)
efc7e0e82005a0135d9b658af156d6388c49367d
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 8e75899..3e35839 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -120,6 +120,16 @@ int ata_port_nr_enabled(struct ata_port
return cnt;
}
+int ata_port_nr_ready(struct ata_port *ap)
+{
+ int i, cnt = 0;
+
+ for (i = 0; i < ATA_MAX_DEVICES; i++)
+ if (ata_dev_ready(&ap->device[i]))
+ cnt++;
+ return cnt;
+}
+
/**
* ata_tf_to_fis - Convert ATA taskfile to SATA FIS structure
* @tf: Taskfile to convert
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index d77b5ff..ce44e06 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -50,6 +50,7 @@ extern int atapi_dmadir;
extern int libata_fua;
extern int ata_port_nr_vacant(struct ata_port *ap);
extern int ata_port_nr_enabled(struct ata_port *ap);
+extern int ata_port_nr_ready(struct ata_port *ap);
extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev);
extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc);
extern void ata_dev_disable(struct ata_device *dev);
--
1.3.2
next prev parent reply other threads:[~2006-07-17 6:51 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-17 6:52 [PATCHSET] libata: implement runtime link powersave Tejun Heo
2006-07-17 6:52 ` [PATCH 04/12] libata: implement ata_all_ports list Tejun Heo
2006-07-19 19:34 ` Jeff Garzik
2006-07-17 6:52 ` [PATCH 01/12] libata: add msec_to_jiffies() Tejun Heo
2006-07-17 6:52 ` [PATCH 02/12] libata: add ata_id_has_sata() and use it in ata_id_has_ncq() Tejun Heo
2006-07-17 6:52 ` [PATCH 03/12] libata: add more SATA specific constants and macros to ata.h Tejun Heo
2006-07-19 19:32 ` Jeff Garzik
2006-07-17 6:52 ` [PATCH 09/12] libata: implement powersave timer Tejun Heo
2006-07-19 19:48 ` Jeff Garzik
2006-07-19 20:22 ` Jens Axboe
2006-07-24 7:27 ` Tejun Heo
2006-07-25 8:01 ` Jens Axboe
2006-07-17 6:52 ` [PATCH 10/12] libata: implement standard powersave methods Tejun Heo
2006-07-19 19:50 ` Jeff Garzik
2006-07-17 6:52 ` [PATCH 07/12] libata: implement sata_update_scontrol() Tejun Heo
2006-07-19 19:35 ` Jeff Garzik
2006-07-17 6:52 ` [PATCH 11/12] ahci: implement link powersave Tejun Heo
2006-07-19 19:51 ` Jeff Garzik
2006-07-17 6:52 ` [PATCH 05/12] libata: make counting functions global Tejun Heo
2006-07-17 6:52 ` Tejun Heo [this message]
2006-07-17 6:52 ` [PATCH 08/12] libata: implement interface power management infrastructure Tejun Heo
2006-07-19 19:45 ` Jeff Garzik
2006-07-24 8:02 ` Tejun Heo
2006-07-17 6:52 ` [PATCH 12/12] sata_sil24: implement link powersave Tejun Heo
2006-07-19 19:38 ` [PATCHSET] libata: implement runtime " Jeff Garzik
2006-07-24 7:33 ` Tejun Heo
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