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Message-ID: <20180814161319.16392-4-salil.mehta@huawei.com>
Date: Tue, 14 Aug 2018 17:13:14 +0100
From: Salil Mehta <salil.mehta@...wei.com>
To: <davem@...emloft.net>
CC: <salil.mehta@...wei.com>, <yisen.zhuang@...wei.com>,
<lipeng321@...wei.com>, <mehta.salil.lnk@...il.com>,
<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linuxarm@...wei.com>, Fuyun Liang <liangfuyun1@...wei.com>
Subject: [PATCH V2 net-next 3/8] net: hns3: Fix for information of phydev lost problem when down/up
From: Fuyun Liang <liangfuyun1@...wei.com>
Function call of phy_connect_direct will reinitialize phydev. Some
information like advertising will be lost. Phy_connect_direct only
needs to be called once. And driver can run well. This patch adds
some functions to ensure that phy_connect_direct is called only once
to solve the information of phydev lost problem occurring when we stop
the net and open it again.
Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support
Signed-off-by: Fuyun Liang <liangfuyun1@...wei.com>
Signed-off-by: Peng Li <lipeng321@...wei.com>
Signed-off-by: Salil Mehta <salil.mehta@...wei.com>
---
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 24 +++++++++++++++++----
.../ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c | 25 ++++++++++++++++++----
.../ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h | 4 +++-
3 files changed, 44 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 5f30ea4..2e9c8b9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -3782,7 +3782,7 @@ static int hclge_ae_start(struct hnae3_handle *handle)
{
struct hclge_vport *vport = hclge_get_vport(handle);
struct hclge_dev *hdev = vport->back;
- int i, ret;
+ int i;
for (i = 0; i < vport->alloc_tqps; i++)
hclge_tqp_enable(hdev, i, 0, true);
@@ -3796,9 +3796,7 @@ static int hclge_ae_start(struct hnae3_handle *handle)
/* reset tqp stats */
hclge_reset_tqp_stats(handle);
- ret = hclge_mac_start_phy(hdev);
- if (ret)
- return ret;
+ hclge_mac_start_phy(hdev);
return 0;
}
@@ -5417,6 +5415,16 @@ static void hclge_get_mdix_mode(struct hnae3_handle *handle,
*tp_mdix = ETH_TP_MDI;
}
+static int hclge_init_instance_hw(struct hclge_dev *hdev)
+{
+ return hclge_mac_connect_phy(hdev);
+}
+
+static void hclge_uninit_instance_hw(struct hclge_dev *hdev)
+{
+ hclge_mac_disconnect_phy(hdev);
+}
+
static int hclge_init_client_instance(struct hnae3_client *client,
struct hnae3_ae_dev *ae_dev)
{
@@ -5436,6 +5444,13 @@ static int hclge_init_client_instance(struct hnae3_client *client,
if (ret)
return ret;
+ ret = hclge_init_instance_hw(hdev);
+ if (ret) {
+ client->ops->uninit_instance(&vport->nic,
+ 0);
+ return ret;
+ }
+
if (hdev->roce_client &&
hnae3_dev_roce_supported(hdev)) {
struct hnae3_client *rc = hdev->roce_client;
@@ -5498,6 +5513,7 @@ static void hclge_uninit_client_instance(struct hnae3_client *client,
if (client->type == HNAE3_CLIENT_ROCE)
return;
if (client->ops->uninit_instance) {
+ hclge_uninit_instance_hw(hdev);
client->ops->uninit_instance(&vport->nic, 0);
hdev->nic_client = NULL;
vport->nic.client = NULL;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c
index 2065ee2f..85a123d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c
@@ -193,7 +193,7 @@ static void hclge_mac_adjust_link(struct net_device *netdev)
netdev_err(netdev, "failed to configure flow control.\n");
}
-int hclge_mac_start_phy(struct hclge_dev *hdev)
+int hclge_mac_connect_phy(struct hclge_dev *hdev)
{
struct net_device *netdev = hdev->vport[0].nic.netdev;
struct phy_device *phydev = hdev->hw.mac.phydev;
@@ -213,11 +213,29 @@ int hclge_mac_start_phy(struct hclge_dev *hdev)
phydev->supported &= HCLGE_PHY_SUPPORTED_FEATURES;
phydev->advertising = phydev->supported;
- phy_start(phydev);
-
return 0;
}
+void hclge_mac_disconnect_phy(struct hclge_dev *hdev)
+{
+ struct phy_device *phydev = hdev->hw.mac.phydev;
+
+ if (!phydev)
+ return;
+
+ phy_disconnect(phydev);
+}
+
+void hclge_mac_start_phy(struct hclge_dev *hdev)
+{
+ struct phy_device *phydev = hdev->hw.mac.phydev;
+
+ if (!phydev)
+ return;
+
+ phy_start(phydev);
+}
+
void hclge_mac_stop_phy(struct hclge_dev *hdev)
{
struct net_device *netdev = hdev->vport[0].nic.netdev;
@@ -227,5 +245,4 @@ void hclge_mac_stop_phy(struct hclge_dev *hdev)
return;
phy_stop(phydev);
- phy_disconnect(phydev);
}
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h
index bb3ce35..5fbf7dd 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h
@@ -5,7 +5,9 @@
#define __HCLGE_MDIO_H
int hclge_mac_mdio_config(struct hclge_dev *hdev);
-int hclge_mac_start_phy(struct hclge_dev *hdev);
+int hclge_mac_connect_phy(struct hclge_dev *hdev);
+void hclge_mac_disconnect_phy(struct hclge_dev *hdev);
+void hclge_mac_start_phy(struct hclge_dev *hdev);
void hclge_mac_stop_phy(struct hclge_dev *hdev);
#endif
--
2.7.4
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