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[SCSI] isci: ->lldd_ata_check_ready handler

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Report to libata whether the link to the given domain_device is up and the
signature fis has been received.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Dan Williams 2011-11-17 18:01:38 -08:00 committed by James Bottomley
parent 43a5ab151f
commit 687833a03b
3 changed files with 29 additions and 0 deletions
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3
drivers/scsi/isci/init.c
View File

@ -193,6 +193,9 @@ static struct sas_domain_function_template isci_transport_ops = {
.lldd_lu_reset = isci_task_lu_reset,
.lldd_query_task = isci_task_query_task,
/* ata recovery called from ata-eh */
.lldd_ata_check_ready = isci_ata_check_ready,
/* Port and Adapter management */
.lldd_clear_nexus_port = isci_task_clear_nexus_port,
.lldd_clear_nexus_ha = isci_task_clear_nexus_ha,

25
drivers/scsi/isci/port.c
View File

@ -1675,6 +1675,31 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor
return ret;
}
int isci_ata_check_ready(struct domain_device *dev)
{
struct isci_port *iport = dev->port->lldd_port;
struct isci_host *ihost = dev_to_ihost(dev);
struct isci_remote_device *idev;
unsigned long flags;
int rc = 0;
spin_lock_irqsave(&ihost->scic_lock, flags);
idev = isci_lookup_device(dev);
spin_unlock_irqrestore(&ihost->scic_lock, flags);
if (!idev)
goto out;
if (test_bit(IPORT_RESET_PENDING, &iport->state))
goto out;
rc = !!iport->active_phy_mask;
out:
isci_put_device(idev);
return rc;
}
void isci_port_deformed(struct asd_sas_phy *phy)
{
struct isci_host *ihost = phy->ha->lldd_ha;

1
drivers/scsi/isci/port.h
View File

@ -303,4 +303,5 @@ void isci_port_init(
int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport,
struct isci_phy *iphy);
int isci_ata_check_ready(struct domain_device *dev);
#endif /* !defined(_ISCI_PORT_H_) */