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scsi: libsas: Add sas_ex_phy_to_dev() helper

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Add sas_ex_phy_to_dev() to return any device type attached to an
expander phy, and refactor sas_ex_to_ata() to use it.

No functional changes intended.

Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/20260811040334.4184911-2-yangxingui@huawei.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
This commit is contained in:
Xingui Yang 2026-08-11 12:03:33 +08:00 committed by Martin K. Petersen (Oracle)
parent dc59e4fea9
commit 4c2128c1a3
2 changed files with 10 additions and 4 deletions
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13
drivers/scsi/libsas/sas_expander.c
View File

@ -345,11 +345,10 @@ static void sas_set_ex_phy(struct domain_device *dev, int phy_id,
SAS_ADDR(phy->attached_sas_addr), type);
}
/* check if we have an existing attached ata device on this expander phy */
struct domain_device *sas_ex_to_ata(struct domain_device *ex_dev, int phy_id)
/* Return the domain device attached to an expander phy */
struct domain_device *sas_ex_phy_to_dev(struct domain_device *ex_dev, int phy_id)
{
struct ex_phy *ex_phy = &ex_dev->ex_dev.ex_phy[phy_id];
struct domain_device *dev;
struct sas_rphy *rphy;
if (!ex_phy->port)
@ -359,7 +358,13 @@ struct domain_device *sas_ex_to_ata(struct domain_device *ex_dev, int phy_id)
if (!rphy)
return NULL;
dev = sas_find_dev_by_rphy(rphy);
return sas_find_dev_by_rphy(rphy);
}
/* Check if we have an existing attached ata device on this expander phy */
struct domain_device *sas_ex_to_ata(struct domain_device *ex_dev, int phy_id)
{
struct domain_device *dev = sas_ex_phy_to_dev(ex_dev, phy_id);
if (dev && dev_is_sata(dev))
return dev;

1
drivers/scsi/libsas/sas_internal.h
View File

@ -91,6 +91,7 @@ int sas_smp_get_phy_events(struct sas_phy *phy);
void sas_device_set_phy(struct domain_device *dev, struct sas_port *port);
struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy);
struct domain_device *sas_ex_phy_to_dev(struct domain_device *ex_dev, int phy_id);
struct domain_device *sas_ex_to_ata(struct domain_device *ex_dev, int phy_id);
int sas_ex_phy_discover(struct domain_device *dev, int single);
int sas_get_report_phy_sata(struct domain_device *dev, int phy_id,