[PATCH 15/15] sas_ata: Make this a module separate from libsas

[Darrick J. Wong]

Break out sas_ata as a free-standing module that provides a SATA
Translation Layer (SATL) for libsas.  This patch requires the libsas
SATL registration patch; the changes to sas_ata itself are rather
minor.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---

 drivers/scsi/libsas/Makefile  |    5 +++--
 drivers/scsi/libsas/sas_ata.c |   34 ++++++++++++++++++++++++++++++++--
 2 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/libsas/Makefile b/drivers/scsi/libsas/Makefile
index 6383eb5..5e95902 100644
--- a/drivers/scsi/libsas/Makefile
+++ b/drivers/scsi/libsas/Makefile
@@ -33,5 +33,6 @@ libsas-y +=  sas_init.o     \
 		sas_dump.o     \
 		sas_discover.o \
 		sas_expander.o \
-		sas_scsi_host.o \
-		sas_ata.o
+		sas_scsi_host.o
+
+obj-$(CONFIG_SCSI_SAS_SATL) += sas_ata.o
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 7338775..bfaee88 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -398,8 +398,8 @@ static struct ata_port_info sata_port_in
 	.port_ops = &sas_sata_ops
 };
 
-int sas_ata_init_host_and_port(struct domain_device *found_dev,
-			       struct scsi_target *starget)
+static int sas_ata_init_host_and_port(struct domain_device *found_dev,
+				      struct scsi_target *starget)
 {
 	struct Scsi_Host *shost = dev_to_shost(&starget->dev);
 	struct sas_ha_struct *ha = SHOST_TO_SAS_HA(shost);
@@ -424,3 +424,33 @@ int sas_ata_init_host_and_port(struct do
 
 	return 0;
 }
+
+/* Module initialization */
+static struct satl_operations sas_ata_ops = {
+	.owner			= THIS_MODULE,
+	.init_target		= sas_ata_init_host_and_port,
+	.queuecommand		= ata_sas_queuecmd,
+	.ioctl			= ata_scsi_ioctl,
+	.configure_port		= ata_sas_slave_configure,
+	.deactivate_port	= ata_port_disable,
+	.destroy_port		= ata_sas_port_destroy,
+	.init_port		= ata_sas_port_init
+};
+
+static int __init sas_ata_init(void)
+{
+	return sas_register_satl(&sas_ata_ops);
+}
+
+static void __exit sas_ata_exit(void)
+{
+	sas_unregister_satl(&sas_ata_ops);
+}
+
+module_init(sas_ata_init);
+module_exit(sas_ata_exit);
+
+MODULE_AUTHOR("Darrick Wong <djwong@xxxxxxxxxx>");
+MODULE_DESCRIPTION("libata SATL for SAS");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION("1.0");
-
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