From bcf508c13385e74972f5cc06d8471d5c100395b0 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Wed, 9 Dec 2015 11:13:35 -0800 Subject: scsi_transport_sas: add function to get SAS endpoint address 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. Reviewed-by: Hannes Reinecke Signed-off-by: James Bottomley 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 *); -- cgit v0.10.2