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Message-ID: <1625553692-2773-3-git-send-email-huangguangbin2@huawei.com>
Date: Tue, 6 Jul 2021 14:41:26 +0800
From: Guangbin Huang <huangguangbin2@...wei.com>
To: <davem@...emloft.net>, <kuba@...nel.org>, <jiri@...dia.com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<lipeng321@...wei.com>, <chenhao288@...ilicon.com>,
<huangguangbin2@...wei.com>
Subject: [RFC PATCH net-next 2/8] net: hns3: add support for registering devlink for VF
From: Yufeng Mo <moyufeng@...wei.com>
Add devlink register support for HNS3 ethernet VF driver.
Signed-off-by: Yufeng Mo <moyufeng@...wei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@...wei.com>
---
.../net/ethernet/hisilicon/hns3/hns3vf/Makefile | 2 +-
.../hisilicon/hns3/hns3vf/hclgevf_devlink.c | 54 ++++++++++++++++++++++
.../hisilicon/hns3/hns3vf/hclgevf_devlink.h | 15 ++++++
.../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 8 ++++
.../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h | 3 ++
5 files changed, 81 insertions(+), 1 deletion(-)
create mode 100644 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
create mode 100644 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.h
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/Makefile b/drivers/net/ethernet/hisilicon/hns3/hns3vf/Makefile
index 2c26ea607a53..51ff7d86ee90 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/Makefile
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/Makefile
@@ -7,4 +7,4 @@ ccflags-y := -I $(srctree)/drivers/net/ethernet/hisilicon/hns3
ccflags-y += -I $(srctree)/$(src)
obj-$(CONFIG_HNS3_HCLGEVF) += hclgevf.o
-hclgevf-objs = hclgevf_main.o hclgevf_cmd.o hclgevf_mbx.o
+hclgevf-objs = hclgevf_main.o hclgevf_cmd.o hclgevf_mbx.o hclgevf_devlink.o
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
new file mode 100644
index 000000000000..55337a975981
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2021 Hisilicon Limited. */
+
+#include <net/devlink.h>
+
+#include "hclgevf_devlink.h"
+
+static const struct devlink_ops hclgevf_devlink_ops = {
+};
+
+int hclgevf_devlink_init(struct hclgevf_dev *hdev)
+{
+ struct pci_dev *pdev = hdev->pdev;
+ struct hclgevf_devlink_priv *priv;
+ struct devlink *devlink;
+ int ret;
+
+ devlink = devlink_alloc(&hclgevf_devlink_ops,
+ sizeof(struct hclgevf_devlink_priv));
+ if (!devlink)
+ return -ENOMEM;
+
+ priv = devlink_priv(devlink);
+ priv->hdev = hdev;
+
+ ret = devlink_register(devlink, &pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register devlink, ret = %d\n",
+ ret);
+ goto out_reg_fail;
+ }
+
+ hdev->devlink = devlink;
+
+ return 0;
+
+out_reg_fail:
+ devlink_free(devlink);
+ return ret;
+}
+
+void hclgevf_devlink_uninit(struct hclgevf_dev *hdev)
+{
+ struct devlink *devlink = hdev->devlink;
+
+ if (!devlink)
+ return;
+
+ devlink_unregister(devlink);
+
+ devlink_free(devlink);
+
+ hdev->devlink = NULL;
+}
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.h
new file mode 100644
index 000000000000..e09ea3d8a963
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2021 Hisilicon Limited. */
+
+#ifndef __HCLGEVF_DEVLINK_H
+#define __HCLGEVF_DEVLINK_H
+
+#include "hclgevf_main.h"
+
+struct hclgevf_devlink_priv {
+ struct hclgevf_dev *hdev;
+};
+
+int hclgevf_devlink_init(struct hclgevf_dev *hdev);
+void hclgevf_devlink_uninit(struct hclgevf_dev *hdev);
+#endif
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 52eaf82b7cd7..1e03c4d16125 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -8,6 +8,7 @@
#include "hclgevf_main.h"
#include "hclge_mbx.h"
#include "hnae3.h"
+#include "hclgevf_devlink.h"
#define HCLGEVF_NAME "hclgevf"
@@ -3327,6 +3328,10 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev)
if (ret)
return ret;
+ ret = hclgevf_devlink_init(hdev);
+ if (ret)
+ goto err_devlink_init;
+
ret = hclgevf_cmd_queue_init(hdev);
if (ret)
goto err_cmd_queue_init;
@@ -3431,6 +3436,8 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev)
err_cmd_init:
hclgevf_cmd_uninit(hdev);
err_cmd_queue_init:
+ hclgevf_devlink_uninit(hdev);
+err_devlink_init:
hclgevf_pci_uninit(hdev);
clear_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state);
return ret;
@@ -3452,6 +3459,7 @@ static void hclgevf_uninit_hdev(struct hclgevf_dev *hdev)
}
hclgevf_cmd_uninit(hdev);
+ hclgevf_devlink_uninit(hdev);
hclgevf_pci_uninit(hdev);
hclgevf_uninit_mac_list(hdev);
}
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
index d7d02848d674..6f222a3a0bf2 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
@@ -6,6 +6,7 @@
#include <linux/fs.h>
#include <linux/if_vlan.h>
#include <linux/types.h>
+#include <net/devlink.h>
#include "hclge_mbx.h"
#include "hclgevf_cmd.h"
#include "hnae3.h"
@@ -330,6 +331,8 @@ struct hclgevf_dev {
u32 flag;
unsigned long serv_processed_cnt;
unsigned long last_serv_processed;
+
+ struct devlink *devlink;
};
static inline bool hclgevf_is_reset_pending(struct hclgevf_dev *hdev)
--
2.8.1
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