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net: hns3: fix return value error when query MAC link status fail

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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. So fixes it.

Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jian Shen 2020-07-21 19:03:54 +08:00 committed by David S. Miller
parent 8ceca59fb3
commit fac24df7b9
2 changed files with 25 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -2673,11 +2673,10 @@ 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);
@ -2689,33 +2688,25 @@ static int hclge_get_mac_link_status(struct hclge_dev *hdev)
}
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 (phydev && (phydev->state != PHY_RUNNING || !phydev->link))
return 0;
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;
}
return !!link_stat;
return hclge_get_mac_link_status(hdev, link_status);
}
static void hclge_update_link_status(struct hclge_dev *hdev)
@ -2725,6 +2716,7 @@ 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)
@ -2733,7 +2725,12 @@ 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;
@ -6524,14 +6521,15 @@ 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);
@ -6542,9 +6540,6 @@ 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;

3
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
View File

@ -317,6 +317,9 @@ 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