scsi: hisi_sas: Set a port invalid only if there are no devices attached when refresh...

Currently the driver sets the port invalid if one phy in the port is not
enabled, which may cause issues in expander situation. In directly attached
situation, if phy up doesn't occur in time when refreshing port id, the
port is incorrectly set to invalid which will also cause disk lost.

Therefore set a port invalid only if there are no devices attached to the
port.

Signed-off-by: Yihang Li <liyihang9@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1672805000-141102-3-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 5e06b7add125b9f2d964fa4d595cb72adfb71cef..8c038ccf1c0954f2c239ecf7e31754abf08e529a 100644 (file)
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1316,7 +1316,7 @@ static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba)
                                device->linkrate = phy->sas_phy.linkrate;
 
                        hisi_hba->hw->setup_itct(hisi_hba, sas_dev);
-               } else
+               } else if (!port->port_attached)
                        port->id = 0xff;
        }
 }