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authorJason Yan <yanaijie@huawei.com>2018-03-26 17:27:41 +0800
committerMartin K. Petersen <martin.petersen@oracle.com>2018-04-18 19:32:51 -0400
commitb6240a4df0186c03e5ffff6f61570ed31a1a5172 (patch)
treead037bb6ad16a5ac18c1f83545ae86e90e538fcf /drivers/ata
parentc90a0bea4f645d561b87becd2bd99f7934402510 (diff)
scsi: libsas: add transport class for ATA devices
Now ata devices attached with sas controller do not have transport class, so that we can not see any information of these ata devices in /sys/class/ata_port(or ata_link or ata_device). Add transport class for the ata devices attached with sas controller. The /sys/class directory will show the infomation of the ata devices as follows: localhost:/sys/class # ls ata* ata_device: dev1.0 dev2.0 ata_link: link1 link2 ata_port: ata1 ata2 No functional change of the device scanning and io path. The ata transport class was deleted when destroying the sas devices. Signed-off-by: Jason Yan <yanaijie@huawei.com> CC: Dan Williams <dan.j.williams@intel.com> CC: Tejun Heo <tj@kernel.org> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/libata-scsi.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 89a9d4a2efc8..1c9f80fbc51c 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -5051,6 +5051,18 @@ int ata_sas_port_init(struct ata_port *ap)
}
EXPORT_SYMBOL_GPL(ata_sas_port_init);
+int ata_sas_tport_add(struct device *parent, struct ata_port *ap)
+{
+ return ata_tport_add(parent, ap);
+}
+EXPORT_SYMBOL_GPL(ata_sas_tport_add);
+
+void ata_sas_tport_delete(struct ata_port *ap)
+{
+ ata_tport_delete(ap);
+}
+EXPORT_SYMBOL_GPL(ata_sas_tport_delete);
+
/**
* ata_sas_port_destroy - Destroy a SATA port allocated by ata_sas_port_alloc
* @ap: SATA port to destroy