linux-kernel - [PATCH net-next 11/12] net: hns3: add queue's statistics update to service task

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Message-ID: <1555643147-52407-12-git-send-email-tanhuazhong@huawei.com>
Date:   Fri, 19 Apr 2019 11:05:46 +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>, <nhorman@...hat.com>,
        liuzhongzhu <liuzhongzhu@...wei.com>,
        Peng Li <lipeng321@...wei.com>,
        Huazhong Tan <tanhuazhong@...wei.com>
Subject: [PATCH net-next 11/12] net: hns3: add queue's statistics update to service task

From: liuzhongzhu <liuzhongzhu@...wei.com>

This patch updates VF's TQP statistic info in the service task,
and adds a limitation to prevent update too frequently.

Signed-off-by: liuzhongzhu <liuzhongzhu@...wei.com>
Signed-off-by: Peng Li <lipeng321@...wei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 8 ++++++++
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index ac06568..f9d98f8 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -1649,6 +1649,7 @@ static void hclgevf_service_timer(struct timer_list *t)
 
 	mod_timer(&hdev->service_timer, jiffies + 5 * HZ);
 
+	hdev->stats_timer++;
 	hclgevf_task_schedule(hdev);
 }
 
@@ -1769,9 +1770,16 @@ static void hclgevf_keep_alive_task(struct work_struct *work)
 
 static void hclgevf_service_task(struct work_struct *work)
 {
+	struct hnae3_handle *handle;
 	struct hclgevf_dev *hdev;
 
 	hdev = container_of(work, struct hclgevf_dev, service_task);
+	handle = &hdev->nic;
+
+	if (hdev->stats_timer >= HCLGEVF_STATS_TIMER_INTERVAL) {
+		hclgevf_tqps_update_stats(handle);
+		hdev->stats_timer = 0;
+	}
 
 	/* request the link status from the PF. PF would be able to tell VF
 	 * about such updates in future so we might remove this later
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
index d39c032..ee3a6cb 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
@@ -116,6 +116,8 @@
 #define HCLGEVF_S_IP_BIT		BIT(3)
 #define HCLGEVF_V_TAG_BIT		BIT(4)
 
+#define HCLGEVF_STATS_TIMER_INTERVAL	(36)
+
 enum hclgevf_evt_cause {
 	HCLGEVF_VECTOR0_EVENT_RST,
 	HCLGEVF_VECTOR0_EVENT_MBX,
@@ -281,6 +283,7 @@ struct hclgevf_dev {
 	struct hnae3_client *nic_client;
 	struct hnae3_client *roce_client;
 	u32 flag;
+	u32 stats_timer;
 };
 
 static inline bool hclgevf_is_reset_pending(struct hclgevf_dev *hdev)
-- 
2.7.4