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net: hns3: add devlink reload support for PF

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Add devlink reload support for HNS3 ethernet PF driver.

Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hao Chen
2021-07-26 10:47:06 +08:00
committed by David S. Miller
parent bd85e55bfb
commit 98fa7525d3
1 changed files with 70 additions and 0 deletions
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70
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c
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@@ -34,8 +34,74 @@ static int hclge_devlink_info_get(struct devlink *devlink,
version_str);
}
static int hclge_devlink_reload_down(struct devlink *devlink, bool netns_change,
enum devlink_reload_action action,
enum devlink_reload_limit limit,
struct netlink_ext_ack *extack)
{
struct hclge_devlink_priv *priv = devlink_priv(devlink);
struct hclge_dev *hdev = priv->hdev;
struct hnae3_handle *h = &hdev->vport->nic;
struct pci_dev *pdev = hdev->pdev;
int ret;
if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state)) {
dev_err(&pdev->dev, "reset is handling\n");
return -EBUSY;
}
switch (action) {
case DEVLINK_RELOAD_ACTION_DRIVER_REINIT:
rtnl_lock();
ret = hdev->nic_client->ops->reset_notify(h, HNAE3_DOWN_CLIENT);
if (ret) {
rtnl_unlock();
return ret;
}
ret = hdev->nic_client->ops->reset_notify(h,
HNAE3_UNINIT_CLIENT);
rtnl_unlock();
return ret;
default:
return -EOPNOTSUPP;
}
}
static int hclge_devlink_reload_up(struct devlink *devlink,
enum devlink_reload_action action,
enum devlink_reload_limit limit,
u32 *actions_performed,
struct netlink_ext_ack *extack)
{
struct hclge_devlink_priv *priv = devlink_priv(devlink);
struct hclge_dev *hdev = priv->hdev;
struct hnae3_handle *h = &hdev->vport->nic;
int ret;
*actions_performed = BIT(action);
switch (action) {
case DEVLINK_RELOAD_ACTION_DRIVER_REINIT:
rtnl_lock();
ret = hdev->nic_client->ops->reset_notify(h, HNAE3_INIT_CLIENT);
if (ret) {
rtnl_unlock();
return ret;
}
ret = hdev->nic_client->ops->reset_notify(h, HNAE3_UP_CLIENT);
rtnl_unlock();
return ret;
default:
return -EOPNOTSUPP;
}
}
static const struct devlink_ops hclge_devlink_ops = {
.info_get = hclge_devlink_info_get,
.reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT),
.reload_down = hclge_devlink_reload_down,
.reload_up = hclge_devlink_reload_up,
};
int hclge_devlink_init(struct hclge_dev *hdev)
@@ -62,6 +128,8 @@ int hclge_devlink_init(struct hclge_dev *hdev)
hdev->devlink = devlink;
devlink_reload_enable(devlink);
return 0;
out_reg_fail:
@@ -76,6 +144,8 @@ void hclge_devlink_uninit(struct hclge_dev *hdev)
if (!devlink)
return;
devlink_reload_disable(devlink);
devlink_unregister(devlink);
devlink_free(devlink);