On 12/09/2015 08:13 PM, James Bottomley wrote:
For a device known to be SAS connected, this will return the endpoint
address. This is useful for getting the SAS address of SATA devices.
Signed-off-by: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/scsi_transport_sas.c | 14 ++++++++++++++
include/scsi/scsi_transport_sas.h | 1 +
2 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index b17f763..80520e2 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -383,6 +383,20 @@ void sas_remove_host(struct Scsi_Host *shost)
EXPORT_SYMBOL(sas_remove_host);
/**
+ * sas_get_address - return the SAS address of the device
+ * @sdev: scsi device
+ *
+ * Returns the SAS address of the scsi device
+ */
+u64 sas_get_address(struct scsi_device *sdev)
+{
+ struct sas_end_device *rdev = sas_sdev_to_rdev(sdev);
+
+ return rdev->rphy.identify.sas_address;
+}
+EXPORT_SYMBOL(sas_get_address);
+
+/**
* sas_tlr_supported - checking TLR bit in vpd 0x90
* @sdev: scsi device struct
*
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
index a8fdd10..13c0b2b 100644
--- a/include/scsi/scsi_transport_sas.h
+++ b/include/scsi/scsi_transport_sas.h
@@ -189,6 +189,7 @@ extern int sas_phy_add(struct sas_phy *);
extern void sas_phy_delete(struct sas_phy *);
extern int scsi_is_sas_phy(const struct device *);
+u64 sas_get_address(struct scsi_device *);
unsigned int sas_tlr_supported(struct scsi_device *);
unsigned int sas_is_tlr_enabled(struct scsi_device *);
void sas_disable_tlr(struct scsi_device *);
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@xxxxxxx +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
