From: Yunsheng Lin <[email protected]>

Use delayed work instead of using timers to trigger the
hclge_serive.

Simplify the code with one less middle function and in order
to support misc irq affinity.

Signed-off-by: Yunsheng Lin <[email protected]>
Reviewed-by: Peng Li <[email protected]>
Signed-off-by: Huazhong Tan <[email protected]>
---
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 60 ++++++++--------------
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h    |  3 +-
 2 files changed, 22 insertions(+), 41 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c 
b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index fe45986..45acbc9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2524,9 +2524,13 @@ static void hclge_task_schedule(struct hclge_dev *hdev)
 {
        if (!test_bit(HCLGE_STATE_DOWN, &hdev->state) &&
            !test_bit(HCLGE_STATE_REMOVING, &hdev->state) &&
-           !test_and_set_bit(HCLGE_STATE_SERVICE_SCHED, &hdev->state))
-               queue_work_on(cpumask_first(&hdev->affinity_mask), system_wq,
-                             &hdev->service_task);
+           !test_and_set_bit(HCLGE_STATE_SERVICE_SCHED, &hdev->state)) {
+               hdev->hw_stats.stats_timer++;
+               hdev->fd_arfs_expire_timer++;
+               mod_delayed_work_on(cpumask_first(&hdev->affinity_mask),
+                                   system_wq, &hdev->service_task,
+                                   round_jiffies_relative(HZ));
+       }
 }
 
 static int hclge_get_mac_link_status(struct hclge_dev *hdev)
@@ -2741,25 +2745,6 @@ static int hclge_get_status(struct hnae3_handle *handle)
        return hdev->hw.mac.link;
 }
 
-static void hclge_service_timer(struct timer_list *t)
-{
-       struct hclge_dev *hdev = from_timer(hdev, t, service_timer);
-
-       mod_timer(&hdev->service_timer, jiffies + HZ);
-       hdev->hw_stats.stats_timer++;
-       hdev->fd_arfs_expire_timer++;
-       hclge_task_schedule(hdev);
-}
-
-static void hclge_service_complete(struct hclge_dev *hdev)
-{
-       WARN_ON(!test_bit(HCLGE_STATE_SERVICE_SCHED, &hdev->state));
-
-       /* Flush memory before next watchdog */
-       smp_mb__before_atomic();
-       clear_bit(HCLGE_STATE_SERVICE_SCHED, &hdev->state);
-}
-
 static u32 hclge_check_event_cause(struct hclge_dev *hdev, u32 *clearval)
 {
        u32 rst_src_reg, cmdq_src_reg, msix_src_reg;
@@ -2937,9 +2922,6 @@ static void hclge_irq_affinity_notify(struct 
irq_affinity_notify *notify,
                                              affinity_notify);
 
        cpumask_copy(&hdev->affinity_mask, mask);
-       del_timer_sync(&hdev->service_timer);
-       hdev->service_timer.expires = jiffies + HZ;
-       add_timer_on(&hdev->service_timer, cpumask_first(&hdev->affinity_mask));
 }
 
 static void hclge_irq_affinity_release(struct kref *ref)
@@ -3639,7 +3621,9 @@ static void hclge_update_vport_alive(struct hclge_dev 
*hdev)
 static void hclge_service_task(struct work_struct *work)
 {
        struct hclge_dev *hdev =
-               container_of(work, struct hclge_dev, service_task);
+               container_of(work, struct hclge_dev, service_task.work);
+
+       clear_bit(HCLGE_STATE_SERVICE_SCHED, &hdev->state);
 
        if (hdev->hw_stats.stats_timer >= HCLGE_STATS_TIMER_INTERVAL) {
                hclge_update_stats_for_all(hdev);
@@ -3654,7 +3638,8 @@ static void hclge_service_task(struct work_struct *work)
                hclge_rfs_filter_expire(hdev);
                hdev->fd_arfs_expire_timer = 0;
        }
-       hclge_service_complete(hdev);
+
+       hclge_task_schedule(hdev);
 }
 
 struct hclge_vport *hclge_get_vport(struct hnae3_handle *handle)
@@ -6193,13 +6178,13 @@ static void hclge_set_timer_task(struct hnae3_handle 
*handle, bool enable)
        struct hclge_dev *hdev = vport->back;
 
        if (enable) {
-               del_timer_sync(&hdev->service_timer);
-               hdev->service_timer.expires = jiffies + HZ;
-               add_timer_on(&hdev->service_timer,
-                            cpumask_first(&hdev->affinity_mask));
+               hclge_task_schedule(hdev);
        } else {
-               del_timer_sync(&hdev->service_timer);
-               cancel_work_sync(&hdev->service_task);
+               /* Set the DOWN flag here to disable the service to be
+                * scheduled again
+                */
+               set_bit(HCLGE_STATE_DOWN, &hdev->state);
+               cancel_delayed_work_sync(&hdev->service_task);
                clear_bit(HCLGE_STATE_SERVICE_SCHED, &hdev->state);
        }
 }
@@ -8638,12 +8623,10 @@ static void hclge_state_uninit(struct hclge_dev *hdev)
        set_bit(HCLGE_STATE_DOWN, &hdev->state);
        set_bit(HCLGE_STATE_REMOVING, &hdev->state);
 
-       if (hdev->service_timer.function)
-               del_timer_sync(&hdev->service_timer);
        if (hdev->reset_timer.function)
                del_timer_sync(&hdev->reset_timer);
-       if (hdev->service_task.func)
-               cancel_work_sync(&hdev->service_task);
+       if (hdev->service_task.work.func)
+               cancel_delayed_work_sync(&hdev->service_task);
        if (hdev->rst_service_task.func)
                cancel_work_sync(&hdev->rst_service_task);
        if (hdev->mbx_service_task.func)
@@ -8848,9 +8831,8 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 
        hclge_dcb_ops_set(hdev);
 
-       timer_setup(&hdev->service_timer, hclge_service_timer, 0);
        timer_setup(&hdev->reset_timer, hclge_reset_timer, 0);
-       INIT_WORK(&hdev->service_task, hclge_service_task);
+       INIT_DELAYED_WORK(&hdev->service_task, hclge_service_task);
        INIT_WORK(&hdev->rst_service_task, hclge_reset_service_task);
        INIT_WORK(&hdev->mbx_service_task, hclge_mailbox_service_task);
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h 
b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 14df23c..688e425 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -806,9 +806,8 @@ struct hclge_dev {
        u16 adminq_work_limit; /* Num of admin receive queue desc to process */
        unsigned long service_timer_period;
        unsigned long service_timer_previous;
-       struct timer_list service_timer;
        struct timer_list reset_timer;
-       struct work_struct service_task;
+       struct delayed_work service_task;
        struct work_struct rst_service_task;
        struct work_struct mbx_service_task;
 
-- 
2.7.4

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