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scsi: libsas: Add smp_ata_check_ready_type()

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Create function smp_ata_check_ready_type() for LLDDs to wait for SATA
devices to come up after a link reset.

Signed-off-by: Jie Zhan <zhanjie9@hisilicon.com>
Link: https://lore.kernel.org/r/20221118083714.4034612-4-zhanjie9@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Jie Zhan 2022-11-18 16:37:12 +08:00 committed by Martin K. Petersen
parent 94a3555d1f
commit 9181ce3cb5
4 changed files with 35 additions and 2 deletions
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25
drivers/scsi/libsas/sas_ata.c
View File

@ -287,6 +287,31 @@ static int sas_ata_clear_pending(struct domain_device *dev, struct ex_phy *phy)
return 1;
}
int smp_ata_check_ready_type(struct ata_link *link)
{
struct domain_device *dev = link->ap->private_data;
struct sas_phy *phy = sas_get_local_phy(dev);
struct domain_device *ex_dev = dev->parent;
enum sas_device_type type = SAS_PHY_UNUSED;
u8 sas_addr[SAS_ADDR_SIZE];
int res;
res = sas_get_phy_attached_dev(ex_dev, phy->number, sas_addr, &type);
sas_put_local_phy(phy);
if (res)
return res;
switch (type) {
case SAS_SATA_PENDING:
return 0;
case SAS_END_DEVICE:
return 1;
default:
return -ENODEV;
}
}
EXPORT_SYMBOL_GPL(smp_ata_check_ready_type);
static int smp_ata_check_ready(struct ata_link *link)
{
int res;

4
drivers/scsi/libsas/sas_expander.c
View File

@ -1688,8 +1688,8 @@ static int sas_get_phy_change_count(struct domain_device *dev,
return res;
}
static int sas_get_phy_attached_dev(struct domain_device *dev, int phy_id,
u8 *sas_addr, enum sas_device_type *type)
int sas_get_phy_attached_dev(struct domain_device *dev, int phy_id,
u8 *sas_addr, enum sas_device_type *type)
{
int res;
struct smp_disc_resp *disc_resp;

2
drivers/scsi/libsas/sas_internal.h
View File

@ -88,6 +88,8 @@ 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,
struct smp_rps_resp *rps_resp);
int sas_get_phy_attached_dev(struct domain_device *dev, int phy_id,
u8 *sas_addr, enum sas_device_type *type);
int sas_try_ata_reset(struct asd_sas_phy *phy);
void sas_hae_reset(struct work_struct *work);

6
include/scsi/sas_ata.h
View File

@ -36,6 +36,7 @@ void sas_ata_device_link_abort(struct domain_device *dev, bool force_reset);
int sas_execute_ata_cmd(struct domain_device *device, u8 *fis,
int force_phy_id);
int sas_ata_wait_after_reset(struct domain_device *dev, unsigned long deadline);
int smp_ata_check_ready_type(struct ata_link *link);
#else
@ -104,6 +105,11 @@ static inline int sas_ata_wait_after_reset(struct domain_device *dev,
{
return -ETIMEDOUT;
}
static inline int smp_ata_check_ready_type(struct ata_link *link)
{
return 0;
}
#endif
#endif /* _SAS_ATA_H_ */