net: hns3: reset tqp while doing DOWN operation (39cfbc9c) · Commits · 戴 / test

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>

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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);

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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);

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