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From: Huazhong Tan <tanhuazhong@huawei.com>
To: <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<salil.mehta@huawei.com>, <yisen.zhuang@huawei.com>,
	<linuxarm@huawei.com>, <saeedm@mellanox.com>,
	Yunsheng Lin <linyunsheng@huawei.com>,
	Huazhong Tan <tanhuazhong@huawei.com>
Subject: [PATCH V3 net-next 07/10] net: hns3: make hclge_service use delayed workqueue
Date: Sat, 27 Jul 2019 13:46:09 +0800	[thread overview]
Message-ID: <1564206372-42467-8-git-send-email-tanhuazhong@huawei.com> (raw)
In-Reply-To: <1564206372-42467-1-git-send-email-tanhuazhong@huawei.com>

From: Yunsheng Lin <linyunsheng@huawei.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@huawei.com>
Reviewed-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 52 +++++++++-------------
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h    |  3 +-
 2 files changed, 21 insertions(+), 34 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 14199c4..13c9697 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2513,8 +2513,12 @@ 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))
-		(void)schedule_work(&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(system_wq, &hdev->service_task,
+				 round_jiffies_relative(HZ));
+	}
 }
 
 static int hclge_get_mac_link_status(struct hclge_dev *hdev)
@@ -2729,25 +2733,6 @@ 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;
@@ -3594,7 +3579,9 @@ 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);
@@ -3609,7 +3596,8 @@ 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)
@@ -6148,10 +6136,13 @@ static void hclge_set_timer_task(struct hnae3_handle *handle, bool enable)
 	struct hclge_dev *hdev = vport->back;
 
 	if (enable) {
-		mod_timer(&hdev->service_timer, jiffies + HZ);
+		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);
 	}
 }
@@ -8590,12 +8581,10 @@ 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)
@@ -8800,9 +8789,8 @@ 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 6a12285..dde8f22 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


  parent reply	other threads:[~2019-07-27  5:49 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-27  5:46 [PATCH V3 net-next 00/10] net: hns3: some code optimizations & bugfixes & features Huazhong Tan
2019-07-27  5:46 ` [PATCH V3 net-next 01/10] net: hns3: add reset checking before set channels Huazhong Tan
2019-07-27  5:46 ` [PATCH V3 net-next 02/10] net: hns3: add a check for get_reset_level Huazhong Tan
2019-07-27  5:46 ` [PATCH V3 net-next 03/10] net: hns3: remove upgrade reset level when reset fail Huazhong Tan
2019-07-27  5:46 ` [PATCH V3 net-next 04/10] net: hns3: change GFP flag during lock period Huazhong Tan
2019-07-27  5:46 ` [PATCH V3 net-next 05/10] net: hns3: modify firmware version display format Huazhong Tan
2019-07-27  5:46 ` [PATCH V3 net-next 06/10] net: hns3: add debug messages to identify eth down cause Huazhong Tan
2019-07-28  2:03   ` David Miller
2019-07-29  1:21     ` tanhuazhong
2019-07-27  5:46 ` Huazhong Tan [this message]
2019-07-27  5:46 ` [PATCH V3 net-next 08/10] net: hns3: add interrupt affinity support for misc interrupt Huazhong Tan
2019-07-27  5:46 ` [PATCH V3 net-next 09/10] net: hns3: Add support for using order 1 pages with a 4K buffer Huazhong Tan
2019-07-27  5:46 ` [PATCH V3 net-next 10/10] net: hns3: use dev_info() instead of pr_info() Huazhong Tan

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