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scsi: hisi_sas: hardreset for SATA disk in LU reset

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When issuing an LU reset for a SATA target, issue an internal abort and
a hard reset.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
John Garry 2017-03-23 01:25:26 +08:00 committed by Martin K. Petersen
parent c35279f2f1
commit 055945df4c
1 changed files with 29 additions and 9 deletions
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38
drivers/scsi/hisi_sas/hisi_sas_main.c
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@ -1037,23 +1037,43 @@ static int hisi_sas_I_T_nexus_reset(struct domain_device *device)
static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun)
{
struct hisi_sas_tmf_task tmf_task;
struct hisi_sas_device *sas_dev = device->lldd_dev;
struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
struct device *dev = &hisi_hba->pdev->dev;
unsigned long flags;
int rc = TMF_RESP_FUNC_FAILED;
tmf_task.tmf = TMF_LU_RESET;
sas_dev->dev_status = HISI_SAS_DEV_EH;
rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
if (rc == TMF_RESP_FUNC_COMPLETE) {
spin_lock_irqsave(&hisi_hba->lock, flags);
hisi_sas_release_task(hisi_hba, device);
spin_unlock_irqrestore(&hisi_hba->lock, flags);
}
if (dev_is_sata(device)) {
struct sas_phy *phy;
/* If failed, fall-through I_T_Nexus reset */
/* Clear internal IO and then hardreset */
rc = hisi_sas_internal_task_abort(hisi_hba, device,
HISI_SAS_INT_ABT_DEV, 0);
if (rc == TMF_RESP_FUNC_FAILED)
goto out;
phy = sas_get_local_phy(device);
rc = sas_phy_reset(phy, 1);
if (rc == 0) {
spin_lock_irqsave(&hisi_hba->lock, flags);
hisi_sas_release_task(hisi_hba, device);
spin_unlock_irqrestore(&hisi_hba->lock, flags);
}
sas_put_local_phy(phy);
} else {
struct hisi_sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET };
rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
if (rc == TMF_RESP_FUNC_COMPLETE) {
spin_lock_irqsave(&hisi_hba->lock, flags);
hisi_sas_release_task(hisi_hba, device);
spin_unlock_irqrestore(&hisi_hba->lock, flags);
}
}
out:
dev_err(dev, "lu_reset: for device[%llx]:rc= %d\n",
sas_dev->device_id, rc);
return rc;