net: hns3: reset tqp while doing DOWN operation

While doing DOWN operation, the driver will reclaim the memory which has
already used for TX. If the hardware is processing this memory, it will
cause a RCB error to the hardware. According the hardware's description,
the driver should reset the tqp before reclaim the memory during DOWN.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 0b04d042633221498896bdeb8f6c4fcf14937d51..98ae2820e00196108e971c08baf4d83f1489a3a6 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -5331,6 +5331,7 @@ static void hclge_ae_stop(struct hnae3_handle *handle)
 {
        struct hclge_vport *vport = hclge_get_vport(handle);
        struct hclge_dev *hdev = vport->back;
+       int i;
 
        set_bit(HCLGE_STATE_DOWN, &hdev->state);
 
@@ -5343,6 +5344,9 @@ static void hclge_ae_stop(struct hnae3_handle *handle)
                return;
        }
 
+       for (i = 0; i < handle->kinfo.num_tqps; i++)
+               hclge_reset_tqp(handle, i);
+
        /* Mac disable */
        hclge_cfg_mac_mode(hdev, false);
 

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 919c3aa87228139af28fdcd132ee6014e2caea5e..156242f96a8e1d45db4f3173ef2617ed290ad426 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -1870,9 +1870,13 @@ static int hclgevf_ae_start(struct hnae3_handle *handle)
 static void hclgevf_ae_stop(struct hnae3_handle *handle)
 {
        struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+       int i;
 
        set_bit(HCLGEVF_STATE_DOWN, &hdev->state);
 
+       for (i = 0; i < handle->kinfo.num_tqps; i++)
+               hclgevf_reset_tqp(handle, i);
+
        /* reset tqp stats */
        hclgevf_reset_tqp_stats(handle);
        hclgevf_update_link_status(hdev, 0);