RDMA/hns: Set reset flag when hw resetting

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

When hw resetting, there is no response from hw when driver sending cmdq.
If driver still send cmdq to hw, the reset process may be blocked.
So reset flag should be set to intercept the cmdq command when driver
receiving "notify down" signal.

Feature or Bugfix:Bugfix
Signed-off-by: NYangyang Li <liyangyang20@huawei.com>
Signed-off-by: Nliyangyang (M) <liyangyang20@huawei.com>
Reviewed-by: Noulijun <oulijun@huawei.com>
Reviewed-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -7059,6 +7059,7 @@ static int hns_roce_hw_v2_reset_notify_down(struct hnae3_handle *handle)
 	if (!hr_dev)
 		return 0;
 
+	hr_dev->is_reset = true;
 	hr_dev->active = false;
 	hr_dev->dis_db = true;
 	hns_roce_hw_v2_reset_notify_usr(hr_dev);