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[06/19] scsi: hisi_sas: modify hisi_sas_dev_gone() for reset

Message ID 1512753410-50924-7-git-send-email-john.garry@huawei.com (mailing list archive)
State Accepted
Headers show

Commit Message

John Garry Dec. 8, 2017, 5:16 p.m. UTC 
From: Xiang Chen <chenxiang66@hisilicon.com>

Do a couple of changes for when HISI_SAS_RESET_BIT is
set for HBA:
- Clearing ITCT is not necessary
- Remove internal abort as it will fail during reset

Flag sas_dev->dev_type is kept as SAS_PHY_UNUSED.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
 drivers/scsi/hisi_sas/hisi_sas_main.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)
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Patch

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 64d51a8..e4b3092 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -738,17 +738,19 @@  static void hisi_sas_dev_gone(struct domain_device *device)
 	dev_info(dev, "found dev[%d:%x] is gone\n",
 		 sas_dev->device_id, sas_dev->dev_type);
 
-	hisi_sas_internal_task_abort(hisi_hba, device,
+	if (!test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) {
+		hisi_sas_internal_task_abort(hisi_hba, device,
 				     HISI_SAS_INT_ABT_DEV, 0);
 
-	hisi_sas_dereg_device(hisi_hba, device);
+		hisi_sas_dereg_device(hisi_hba, device);
+
+		hisi_hba->hw->clear_itct(hisi_hba, sas_dev);
+		device->lldd_dev = NULL;
+		memset(sas_dev, 0, sizeof(*sas_dev));
+	}
 
-	hisi_hba->hw->clear_itct(hisi_hba, sas_dev);
 	if (hisi_hba->hw->free_device)
 		hisi_hba->hw->free_device(sas_dev);
-
-	device->lldd_dev = NULL;
-	memset(sas_dev, 0, sizeof(*sas_dev));
 	sas_dev->dev_type = SAS_PHY_UNUSED;
 }