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path: root/drivers/scsi/pm8001/pm8001_sas.c
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Diffstat (limited to 'drivers/scsi/pm8001/pm8001_sas.c')
-rw-r--r--drivers/scsi/pm8001/pm8001_sas.c49
1 files changed, 48 insertions, 1 deletions
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 1f767a0e727a..49721c886c26 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -329,6 +329,23 @@ int pm8001_slave_configure(struct scsi_device *sdev)
}
return 0;
}
+ /* Find the local port id that's attached to this device */
+static int sas_find_local_port_id(struct domain_device *dev)
+{
+ struct domain_device *pdev = dev->parent;
+
+ /* Directly attached device */
+ if (!pdev)
+ return dev->port->id;
+ while (pdev) {
+ struct domain_device *pdev_p = pdev->parent;
+ if (!pdev_p)
+ return pdev->port->id;
+ pdev = pdev->parent;
+ }
+ return 0;
+}
+
/**
* pm8001_task_exec - queue the task(ssp, smp && ata) to the hardware.
* @task: the task to be execute.
@@ -346,11 +363,12 @@ static int pm8001_task_exec(struct sas_task *task, const int num,
struct domain_device *dev = task->dev;
struct pm8001_hba_info *pm8001_ha;
struct pm8001_device *pm8001_dev;
+ struct pm8001_port *port = NULL;
struct sas_task *t = task;
struct pm8001_ccb_info *ccb;
u32 tag = 0xdeadbeef, rc, n_elem = 0;
u32 n = num;
- unsigned long flags = 0;
+ unsigned long flags = 0, flags_libsas = 0;
if (!dev->port) {
struct task_status_struct *tsm = &t->task_status;
@@ -379,6 +397,35 @@ static int pm8001_task_exec(struct sas_task *task, const int num,
rc = SAS_PHY_DOWN;
goto out_done;
}
+ port = &pm8001_ha->port[sas_find_local_port_id(dev)];
+ if (!port->port_attached) {
+ if (sas_protocol_ata(t->task_proto)) {
+ struct task_status_struct *ts = &t->task_status;
+ ts->resp = SAS_TASK_UNDELIVERED;
+ ts->stat = SAS_PHY_DOWN;
+
+ spin_unlock_irqrestore(&pm8001_ha->lock, flags);
+ spin_unlock_irqrestore(dev->sata_dev.ap->lock,
+ flags_libsas);
+ t->task_done(t);
+ spin_lock_irqsave(dev->sata_dev.ap->lock,
+ flags_libsas);
+ spin_lock_irqsave(&pm8001_ha->lock, flags);
+ if (n > 1)
+ t = list_entry(t->list.next,
+ struct sas_task, list);
+ continue;
+ } else {
+ struct task_status_struct *ts = &t->task_status;
+ ts->resp = SAS_TASK_UNDELIVERED;
+ ts->stat = SAS_PHY_DOWN;
+ t->task_done(t);
+ if (n > 1)
+ t = list_entry(t->list.next,
+ struct sas_task, list);
+ continue;
+ }
+ }
rc = pm8001_tag_alloc(pm8001_ha, &tag);
if (rc)
goto err_out;