net: hns3: fix for mishandle of asserting VF reset fail

When asserts VF reset fail, flag HCLGEVF_STATE_CMD_DISABLE
and handshake status should not set, otherwise the retry will
fail. So adds a check for asserting VF reset and returns
directly when fails.

Fixes: ef5f8e507ec9 ("net: hns3: stop handling command queue while resetting VF")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 1b9578d0bd800b91d622f9b4620d54d92f7eec1a..a10b022d19515987e3742ee345436929c17d1620 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -1793,6 +1793,11 @@ static int hclgevf_reset_prepare_wait(struct hclgevf_dev *hdev)
        if (hdev->reset_type == HNAE3_VF_FUNC_RESET) {
                hclgevf_build_send_msg(&send_msg, HCLGE_MBX_RESET, 0);
                ret = hclgevf_send_mbx_msg(hdev, &send_msg, true, NULL, 0);
+               if (ret) {
+                       dev_err(&hdev->pdev->dev,
+                               "failed to assert VF reset, ret = %d\n", ret);
+                       return ret;
+               }
                hdev->rst_stats.vf_func_rst_cnt++;
        }