From: Jian Shen shenjian15@huawei.com
driver inclusion category: bugfix bugzilla: NA CVE: NA
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Currently, PF queries the mac link status per second by calling function hclge_get_mac_link_status(). It return the error code when failed to send cmdq command to firmware. It's incorrect, because this return value is used as the mac link status, which 0 means link down, and none-zero means link up.
Signed-off-by: Jian Shen shenjian15@huawei.com Reviewed-by: Peng Li lipeng321@huawei.com Reviewed-by: Weiwei Deng dengweiwei@huawei.com Reviewed-by: Junxin Chen chenjunxin1@huawei.com Signed-off-by: Shengzui You youshengzui@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- .../hisilicon/hns3/hns3pf/hclge_main.c | 51 +++++++++---------- .../hisilicon/hns3/hns3pf/hclge_main.h | 3 ++ 2 files changed, 26 insertions(+), 28 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index b14985f49c88..47a277524605 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -2715,11 +2715,10 @@ void hclge_task_schedule(struct hclge_dev *hdev, unsigned long delay_time) delay_time); }
-static int hclge_get_mac_link_status(struct hclge_dev *hdev) +static int hclge_get_mac_link_status(struct hclge_dev *hdev, int *link_status) { struct hclge_link_status_cmd *req; struct hclge_desc desc; - int link_status; int ret;
hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_QUERY_LINK_STATUS, true); @@ -2727,37 +2726,29 @@ static int hclge_get_mac_link_status(struct hclge_dev *hdev) if (ret) { dev_err(&hdev->pdev->dev, "get link status cmd failed %d\n", ret); - return 0; + return ret; }
req = (struct hclge_link_status_cmd *)desc.data; - link_status = req->status & HCLGE_LINK_STATUS_UP_M; + *link_status = (req->status & HCLGE_LINK_STATUS_UP_M) > 0 ? + HCLGE_LINK_STATUS_UP : HCLGE_LINK_STATUS_DOWN;
- return !!link_status; + return 0; }
-static int hclge_get_mac_phy_link(struct hclge_dev *hdev) +static int hclge_get_mac_phy_link(struct hclge_dev *hdev, int *link_status) { - unsigned int mac_state; - int link_stat; + struct phy_device *phydev = hdev->hw.mac.phydev; + + *link_status = HCLGE_LINK_STATUS_DOWN;
if (test_bit(HCLGE_STATE_DOWN, &hdev->state)) return 0;
- mac_state = hclge_get_mac_link_status(hdev); - - if (hdev->hw.mac.phydev) { - if (hdev->hw.mac.phydev->state == PHY_RUNNING) - link_stat = mac_state & - hdev->hw.mac.phydev->link; - else - link_stat = 0; - - } else { - link_stat = mac_state; - } + if (phydev && (phydev->state != PHY_RUNNING || !phydev->link)) + return 0;
- return !!link_stat; + return hclge_get_mac_link_status(hdev, link_status); }
static void hclge_update_link_status(struct hclge_dev *hdev) @@ -2767,6 +2758,7 @@ static void hclge_update_link_status(struct hclge_dev *hdev) struct hnae3_handle *rhandle; struct hnae3_handle *handle; int state; + int ret; int i;
if (!client) @@ -2775,7 +2767,12 @@ static void hclge_update_link_status(struct hclge_dev *hdev) if (test_and_set_bit(HCLGE_STATE_LINK_UPDATING, &hdev->state)) return;
- state = hclge_get_mac_phy_link(hdev); + ret = hclge_get_mac_phy_link(hdev, &state); + if (ret) { + clear_bit(HCLGE_STATE_LINK_UPDATING, &hdev->state); + return; + } + if (state != hdev->hw.mac.link) { for (i = 0; i < hdev->num_vmdq_vport + 1; i++) { handle = &hdev->vport[i].nic; @@ -6643,14 +6640,15 @@ static int hclge_mac_link_status_wait(struct hclge_dev *hdev, int link_ret) { #define HCLGE_MAC_LINK_STATUS_NUM 100
+ int link_status; int i = 0; int ret;
do { - ret = hclge_get_mac_link_status(hdev); - if (ret < 0) + ret = hclge_get_mac_link_status(hdev, &link_status); + if (ret) return ret; - else if (ret == link_ret) + if (link_status == link_ret) return 0;
msleep(HCLGE_LINK_STATUS_MS); @@ -6661,9 +6659,6 @@ static int hclge_mac_link_status_wait(struct hclge_dev *hdev, int link_ret) static int hclge_mac_phy_link_status_wait(struct hclge_dev *hdev, bool en, bool is_phy) { -#define HCLGE_LINK_STATUS_DOWN 0 -#define HCLGE_LINK_STATUS_UP 1 - int link_ret;
link_ret = en ? HCLGE_LINK_STATUS_UP : HCLGE_LINK_STATUS_DOWN; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h index f3af04744af6..7259dd99a118 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h @@ -324,6 +324,9 @@ enum hclge_link_fail_code { HCLGE_LF_XSFP_ABSENT, };
+#define HCLGE_LINK_STATUS_DOWN 0 +#define HCLGE_LINK_STATUS_UP 1 + #define HCLGE_PG_NUM 4 #define HCLGE_SCH_MODE_SP 0 #define HCLGE_SCH_MODE_DWRR 1