6.8-stable review patch. If anyone has any objections, please let me know.
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From: Jiawen Wu jiawenwu@trustnetic.com
[ Upstream commit ac71ab7816b675f1c9614015bd87bfccb456c394 ]
Hardware requires VLAN CTAG and STAG configuration always matches. And whether VLAN CTAG or STAG changes, the configuration needs to be changed as well.
Fixes: 6670f1ece2c8 ("net: txgbe: Add netdev features support") Signed-off-by: Jiawen Wu jiawenwu@trustnetic.com Reviewed-by: Sai Krishna saikrishnag@marvell.com Reviewed-by: Simon Horman horms@kernel.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/wangxun/libwx/wx_lib.c | 46 +++++++++++++++++++ drivers/net/ethernet/wangxun/libwx/wx_lib.h | 2 + drivers/net/ethernet/wangxun/ngbe/ngbe_main.c | 1 + .../net/ethernet/wangxun/txgbe/txgbe_main.c | 1 + 4 files changed, 50 insertions(+)
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_lib.c b/drivers/net/ethernet/wangxun/libwx/wx_lib.c index 6aa6073476f7d..b2d5c3f05eed5 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_lib.c +++ b/drivers/net/ethernet/wangxun/libwx/wx_lib.c @@ -2705,6 +2705,52 @@ int wx_set_features(struct net_device *netdev, netdev_features_t features) } EXPORT_SYMBOL(wx_set_features);
+#define NETIF_VLAN_STRIPPING_FEATURES (NETIF_F_HW_VLAN_CTAG_RX | \ + NETIF_F_HW_VLAN_STAG_RX) + +#define NETIF_VLAN_INSERTION_FEATURES (NETIF_F_HW_VLAN_CTAG_TX | \ + NETIF_F_HW_VLAN_STAG_TX) + +#define NETIF_VLAN_FILTERING_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \ + NETIF_F_HW_VLAN_STAG_FILTER) + +netdev_features_t wx_fix_features(struct net_device *netdev, + netdev_features_t features) +{ + netdev_features_t changed = netdev->features ^ features; + struct wx *wx = netdev_priv(netdev); + + if (changed & NETIF_VLAN_STRIPPING_FEATURES) { + if ((features & NETIF_VLAN_STRIPPING_FEATURES) != NETIF_VLAN_STRIPPING_FEATURES && + (features & NETIF_VLAN_STRIPPING_FEATURES) != 0) { + features &= ~NETIF_VLAN_STRIPPING_FEATURES; + features |= netdev->features & NETIF_VLAN_STRIPPING_FEATURES; + wx_err(wx, "802.1Q and 802.1ad VLAN stripping must be either both on or both off."); + } + } + + if (changed & NETIF_VLAN_INSERTION_FEATURES) { + if ((features & NETIF_VLAN_INSERTION_FEATURES) != NETIF_VLAN_INSERTION_FEATURES && + (features & NETIF_VLAN_INSERTION_FEATURES) != 0) { + features &= ~NETIF_VLAN_INSERTION_FEATURES; + features |= netdev->features & NETIF_VLAN_INSERTION_FEATURES; + wx_err(wx, "802.1Q and 802.1ad VLAN insertion must be either both on or both off."); + } + } + + if (changed & NETIF_VLAN_FILTERING_FEATURES) { + if ((features & NETIF_VLAN_FILTERING_FEATURES) != NETIF_VLAN_FILTERING_FEATURES && + (features & NETIF_VLAN_FILTERING_FEATURES) != 0) { + features &= ~NETIF_VLAN_FILTERING_FEATURES; + features |= netdev->features & NETIF_VLAN_FILTERING_FEATURES; + wx_err(wx, "802.1Q and 802.1ad VLAN filtering must be either both on or both off."); + } + } + + return features; +} +EXPORT_SYMBOL(wx_fix_features); + void wx_set_ring(struct wx *wx, u32 new_tx_count, u32 new_rx_count, struct wx_ring *temp_ring) { diff --git a/drivers/net/ethernet/wangxun/libwx/wx_lib.h b/drivers/net/ethernet/wangxun/libwx/wx_lib.h index ec909e876720c..c41b29ea812ff 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_lib.h +++ b/drivers/net/ethernet/wangxun/libwx/wx_lib.h @@ -30,6 +30,8 @@ int wx_setup_resources(struct wx *wx); void wx_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats); int wx_set_features(struct net_device *netdev, netdev_features_t features); +netdev_features_t wx_fix_features(struct net_device *netdev, + netdev_features_t features); void wx_set_ring(struct wx *wx, u32 new_tx_count, u32 new_rx_count, struct wx_ring *temp_ring);
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c index fdd6b4f70b7a5..e894e01d030d1 100644 --- a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c +++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c @@ -499,6 +499,7 @@ static const struct net_device_ops ngbe_netdev_ops = { .ndo_start_xmit = wx_xmit_frame, .ndo_set_rx_mode = wx_set_rx_mode, .ndo_set_features = wx_set_features, + .ndo_fix_features = wx_fix_features, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = wx_set_mac, .ndo_get_stats64 = wx_get_stats64, diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c index 3b151c410a5c2..c13c43e07a993 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c @@ -550,6 +550,7 @@ static const struct net_device_ops txgbe_netdev_ops = { .ndo_start_xmit = wx_xmit_frame, .ndo_set_rx_mode = wx_set_rx_mode, .ndo_set_features = wx_set_features, + .ndo_fix_features = wx_fix_features, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = wx_set_mac, .ndo_get_stats64 = wx_get_stats64,