[PATCH net-next 5/5] net: hns3: never send command queue message to IMP when reset

[Peng Li]

IMP will not handle and command queue message any more when it is
in core/global, driver should not send command queue message to
IMP until reinitialize the NIC HW.

This patch checks the status and avoid the message sent to IMP when
reset.

Signed-off-by: Peng Li <lipeng...@huawei.com>
---
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 23 +++++++++++++++++-----
 .../ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c    |  6 ++++++
 2 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c 
b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index ce093c3..2066dd7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -3584,6 +3584,9 @@ static int hclge_unmap_ring_frm_vector(struct 
hnae3_handle *handle,
        struct hclge_dev *hdev = vport->back;
        int vector_id, ret;
 
+       if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
+               return 0;
+
        vector_id = hclge_get_vector_index(hdev, vector);
        if (vector_id < 0) {
                dev_err(&handle->pdev->dev,
@@ -3781,13 +3784,16 @@ static int hclge_ae_start(struct hnae3_handle *handle)
        clear_bit(HCLGE_STATE_DOWN, &hdev->state);
        mod_timer(&hdev->service_timer, jiffies + HZ);
 
+       /* reset tqp stats */
+       hclge_reset_tqp_stats(handle);
+
+       if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
+               return 0;
+
        ret = hclge_mac_start_phy(hdev);
        if (ret)
                return ret;
 
-       /* reset tqp stats */
-       hclge_reset_tqp_stats(handle);
-
        return 0;
 }
 
@@ -3797,6 +3803,12 @@ static void hclge_ae_stop(struct hnae3_handle *handle)
        struct hclge_dev *hdev = vport->back;
        int i;
 
+       del_timer_sync(&hdev->service_timer);
+       cancel_work_sync(&hdev->service_task);
+
+       if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
+               return;
+
        for (i = 0; i < vport->alloc_tqps; i++)
                hclge_tqp_enable(hdev, i, 0, false);
 
@@ -3807,8 +3819,6 @@ static void hclge_ae_stop(struct hnae3_handle *handle)
 
        /* reset tqp stats */
        hclge_reset_tqp_stats(handle);
-       del_timer_sync(&hdev->service_timer);
-       cancel_work_sync(&hdev->service_task);
        hclge_update_link_status(hdev);
 }
 
@@ -4940,6 +4950,9 @@ void hclge_reset_tqp(struct hnae3_handle *handle, u16 
queue_id)
        u16 queue_gid;
        int ret;
 
+       if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
+               return;
+
        queue_gid = hclge_covert_handle_qid_global(handle, queue_id);
 
        ret = hclge_tqp_enable(hdev, queue_id, 0, false);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c 
b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c
index c1dea3a..682c2d6 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c
@@ -60,6 +60,9 @@ static int hclge_mdio_write(struct mii_bus *bus, int phyid, 
int regnum,
        struct hclge_desc desc;
        int ret;
 
+       if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
+               return 0;
+
        hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_MDIO_CONFIG, false);
 
        mdio_cmd = (struct hclge_mdio_cfg_cmd *)desc.data;
@@ -95,6 +98,9 @@ static int hclge_mdio_read(struct mii_bus *bus, int phyid, 
int regnum)
        struct hclge_desc desc;
        int ret;
 
+       if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
+               return 0;
+
        hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_MDIO_CONFIG, true);
 
        mdio_cmd = (struct hclge_mdio_cfg_cmd *)desc.data;
-- 
2.9.3