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Message-ID: <1563938327-9865-10-git-send-email-tanhuazhong@huawei.com>
Date: Wed, 24 Jul 2019 11:18:45 +0800
From: Huazhong Tan <tanhuazhong@...wei.com>
To: <davem@...emloft.net>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<salil.mehta@...wei.com>, <yisen.zhuang@...wei.com>,
<linuxarm@...wei.com>, Yunsheng Lin <linyunsheng@...wei.com>,
Huazhong Tan <tanhuazhong@...wei.com>
Subject: [PATCH net-next 09/11] net: hns3: make hclge_service use delayed workqueue
From: Yunsheng Lin <linyunsheng@...wei.com>
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 <linyunsheng@...wei.com>
Reviewed-by: Peng Li <lipeng321@...wei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
---
.../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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