Commit 2d08f329 authored by Jason Yan's avatar Jason Yan Committed by Martin K. Petersen
Browse files

scsi: libsas: Introduce sas_find_attached_phy_id() helper 



LLDDs are all implementing their own attached phy ID finding code.  Factor
it out to libsas.

Signed-off-by: default avatarJason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20220928070130.3657183-3-yanaijie@huawei.com


Reviewed-by: default avatarJack Wang <jinpu.wang@ionos.com>
Reviewed-by: default avatarDamien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: default avatarJohn Garry <john.garry@huawei.com>
Reviewed-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 773792e4

drivers/scsi/libsas/sas_expander.c

+16 −0
Original line number Diff line number Diff line
@@ -2107,6 +2107,22 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev) 
	return res;

}



int sas_find_attached_phy_id(struct expander_device *ex_dev,

			     struct domain_device *dev)

{

	struct ex_phy *phy;

	int phy_id;



	for (phy_id = 0; phy_id < ex_dev->num_phys; phy_id++) {

		phy = &ex_dev->ex_phy[phy_id];

		if (sas_phy_match_dev_addr(dev, phy))

			return phy_id;

	}



	return -ENODEV;

}

EXPORT_SYMBOL_GPL(sas_find_attached_phy_id);



void sas_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,

		struct sas_rphy *rphy)

{

include/scsi/libsas.h

+2 −0
Original line number Diff line number Diff line
@@ -746,6 +746,8 @@ int sas_clear_task_set(struct domain_device *dev, u8 *lun); 
int sas_lu_reset(struct domain_device *dev, u8 *lun);

int sas_query_task(struct sas_task *task, u16 tag);

int sas_abort_task(struct sas_task *task, u16 tag);

int sas_find_attached_phy_id(struct expander_device *ex_dev,

			     struct domain_device *dev);



void sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,

			   gfp_t gfp_flags);