scsi: hisi_sas: Feed back linkrate(max/min) when re-attached

[ Upstream commit 5a54691f874ab29ec82f08bc6936866a3ccdaa91 ]

At directly attached situation, if the user modifies the sysfs interface
of maximum_linkrate and minimum_linkrate to renegotiate the linkrate
between SAS controller and target, the value of both files mentioned
above should have change to user setting after renegotiate is over, but
it remains unchanged.

To fix this bug, maximum_linkrate and minimum_linkrate will be directly
fed back to relevant sas_phy structure.

Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index fd9d82c9033de6cc5021f1209617b3e0cbdb0a45..e9747379384b2754814f780aee9a0f85544ddc54 100644 (file)
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -906,6 +906,9 @@ static void hisi_sas_phy_set_linkrate(struct hisi_hba *hisi_hba, int phy_no,
        _r.maximum_linkrate = max;
        _r.minimum_linkrate = min;
 
+       sas_phy->phy->maximum_linkrate = max;
+       sas_phy->phy->minimum_linkrate = min;
+
        hisi_hba->hw->phy_disable(hisi_hba, phy_no);
        msleep(100);
        hisi_hba->hw->phy_set_linkrate(hisi_hba, phy_no, &_r);