diff options
| author |   Huazhong Tan <tanhuazhong@huawei.com> | 2018-11-07 12:06:07 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-11-07 11:42:17 -0800 |
| commit | 814da63c557726e60b06a206ec8c1123f176d392 (patch) | |
| tree | 4f71a794681cdc1fd664309ba18d348754d3bbf0 /drivers | |
| parent | Merge branch 'net-systemport-Unmap-queues-upon-DSA-unregister-event' (diff) | |
| download | linux-dev-814da63c557726e60b06a206ec8c1123f176d392.tar.xz linux-dev-814da63c557726e60b06a206ec8c1123f176d392.zip | |
net: hns3: use HNS3_NIC_STATE_INITED to indicate the initialization state of enet
Besides of module_init and module_exit, the process of reset will
also uninitialize and initialize the enet client. When reset process
fails with enet client uninitialized, the module_exit does not need
to uninitialize the enet client, otherwise it may cause double
uninitialization problem.
So we need the HNS3_NIC_STATE_INITED flag to indicate whether
the enet client is initialized.
Also HNS3_NIC_STATE_REINITING is previously unused, so change it to
HNS3_NIC_STATE_INITED.
Fixes: bb6b94a896d4 ("net: hns3: Add reset interface implementation in client")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 17 | ||||
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 2 |
2 files changed, 18 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 3f96aa30068e..d51469c6f759 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -3397,6 +3397,8 @@ static int hns3_client_init(struct hnae3_handle *handle) /* MTU range: (ETH_MIN_MTU(kernel default) - 9706) */ netdev->max_mtu = HNS3_MAX_MTU - (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); + set_bit(HNS3_NIC_STATE_INITED, &priv->state); + return ret; out_reg_netdev_fail: @@ -3423,6 +3425,11 @@ static void hns3_client_uninit(struct hnae3_handle *handle, bool reset) if (netdev->reg_state != NETREG_UNINITIALIZED) unregister_netdev(netdev); + if (!test_and_clear_bit(HNS3_NIC_STATE_INITED, &priv->state)) { + netdev_warn(netdev, "already uninitialized\n"); + goto out_netdev_free; + } + hns3_del_all_fd_rules(netdev, true); hns3_force_clear_all_rx_ring(handle); @@ -3443,6 +3450,7 @@ static void hns3_client_uninit(struct hnae3_handle *handle, bool reset) priv->ring_data = NULL; +out_netdev_free: free_netdev(netdev); } @@ -3782,6 +3790,8 @@ static int hns3_reset_notify_init_enet(struct hnae3_handle *handle) priv->ring_data = NULL; } + set_bit(HNS3_NIC_STATE_INITED, &priv->state); + return ret; } @@ -3792,6 +3802,11 @@ static int hns3_reset_notify_uninit_enet(struct hnae3_handle *handle) struct hns3_nic_priv *priv = netdev_priv(netdev); int ret; + if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state)) { + netdev_warn(netdev, "already uninitialized\n"); + return 0; + } + hns3_force_clear_all_rx_ring(handle); ret = hns3_nic_uninit_vector_data(priv); @@ -3815,6 +3830,8 @@ static int hns3_reset_notify_uninit_enet(struct hnae3_handle *handle) hns3_del_all_fd_rules(netdev, false); } + clear_bit(HNS3_NIC_STATE_INITED, &priv->state); + return ret; } diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h index d3636d088aa3..7b759e424d54 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h @@ -15,7 +15,7 @@ extern const char hns3_driver_version[]; enum hns3_nic_state { HNS3_NIC_STATE_TESTING, HNS3_NIC_STATE_RESETTING, - HNS3_NIC_STATE_REINITING, + HNS3_NIC_STATE_INITED, HNS3_NIC_STATE_DOWN, HNS3_NIC_STATE_DISABLED, HNS3_NIC_STATE_REMOVING, |