@@ -190,75 +190,107 @@ static inline int find_next_netdev_feature(u64 feature, unsigned long start)
(bit) >= 0; \
(bit) = find_next_netdev_feature((mask_addr), (bit) - 1))
+extern netdev_features_t netdev_ethtool_features __ro_after_init;
+extern netdev_features_t netdev_never_change_features __ro_after_init;
+extern netdev_features_t netdev_gso_features_mask __ro_after_init;
+extern netdev_features_t netdev_ip_csum_features __ro_after_init;
+extern netdev_features_t netdev_csum_features_mask __ro_after_init;
+extern netdev_features_t netdev_general_tso_features __ro_after_init;
+extern netdev_features_t netdev_all_tso_features __ro_after_init;
+extern netdev_features_t netdev_tso_ecn_features __ro_after_init;
+extern netdev_features_t netdev_all_fcoe_features __ro_after_init;
+extern netdev_features_t netdev_gso_software_features __ro_after_init;
+extern netdev_features_t netdev_one_for_all_features __ro_after_init;
+extern netdev_features_t netdev_all_for_all_features __ro_after_init;
+extern netdev_features_t netdev_upper_disable_features __ro_after_init;
+extern netdev_features_t netdev_soft_features __ro_after_init;
+extern netdev_features_t netdev_soft_off_features __ro_after_init;
+extern netdev_features_t netdev_all_vlan_features __ro_after_init;
+extern netdev_features_t netdev_rx_vlan_features __ro_after_init;
+extern netdev_features_t netdev_tx_vlan_features __ro_after_init;
+extern netdev_features_t netdev_ctag_vlan_features __ro_after_init;
+extern netdev_features_t netdev_stag_vlan_features __ro_after_init;
+extern netdev_features_t netdev_vlan_filter_features __ro_after_init;
+extern netdev_features_t netdev_gso_encap_all_features __ro_after_init;
+extern netdev_features_t netdev_xfrm_features __ro_after_init;
+extern netdev_features_t netdev_tls_features __ro_after_init;
+extern netdev_features_t netdev_csum_gso_features_mask __ro_after_init;
+extern netdev_features_t netdev_vlan_features_mask __ro_after_init;
+
+extern const int netif_f_never_change_array[3];
+extern const int netif_f_gso_mask_array[19];
+extern const int netif_f_ip_csum_array[2];
+extern const int netif_f_csum_mask_array[3];
+extern const int netif_f_general_tso_array[2];
+extern const int netif_f_all_tso_array[4];
+extern const int netif_f_tso_ecn_array[1];
+extern const int netif_f_all_fcoe_array[3];
+extern const int netif_f_gso_soft_array[7];
+extern const int netif_f_one_for_all_array[12];
+extern const int netif_f_all_for_all_array[2];
+extern const int netif_f_upper_disables_array[1];
+extern const int netif_f_soft_array[2];
+extern const int netif_f_soft_off_array[2];
+extern const int netif_f_vlan_array[6];
+extern const int netif_f_tx_vlan_array[2];
+extern const int netif_f_rx_vlan_array[2];
+extern const int netif_f_ctag_vlan_array[2];
+extern const int netif_f_stag_vlan_array[2];
+extern const int netif_f_vlan_filter_array[2];
+extern const int netif_f_gso_encap_array[6];
+extern const int netif_f_xfrm_array[3];
+extern const int netif_f_tls_array[2];
+extern const int netif_f_vlan_mask_array[6];
+
/* Features valid for ethtool to change */
/* = all defined minus driver/device-class-related */
-#define NETIF_F_NEVER_CHANGE (NETIF_F_VLAN_CHALLENGED | \
- NETIF_F_LLTX | NETIF_F_NETNS_LOCAL)
+#define NETIF_F_NEVER_CHANGE netdev_never_change_features
/* remember that ((t)1 << t_BITS) is undefined in C99 */
-#define NETIF_F_ETHTOOL_BITS ((__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) | \
- (__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) - 1)) & \
- ~NETIF_F_NEVER_CHANGE)
+#define NETIF_F_ETHTOOL_BITS netdev_ethtool_features
/* Segmentation offload feature mask */
-#define NETIF_F_GSO_MASK (__NETIF_F_BIT(NETIF_F_GSO_LAST + 1) - \
- __NETIF_F_BIT(NETIF_F_GSO_SHIFT))
+#define NETIF_F_GSO_MASK netdev_gso_features_mask
/* List of IP checksum features. Note that NETIF_F_HW_CSUM should not be
* set in features when NETIF_F_IP_CSUM or NETIF_F_IPV6_CSUM are set--
* this would be contradictory
*/
-#define NETIF_F_CSUM_MASK (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
- NETIF_F_HW_CSUM)
+#define NETIF_F_CSUM_MASK netdev_csum_features_mask
-#define NETIF_F_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | \
- NETIF_F_TSO_ECN | NETIF_F_TSO_MANGLEID)
+#define NETIF_F_ALL_TSO netdev_all_tso_features
-#define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \
- NETIF_F_FSO)
+#define NETIF_F_ALL_FCOE netdev_all_fcoe_features
/* List of features with software fallbacks. */
-#define NETIF_F_GSO_SOFTWARE (NETIF_F_ALL_TSO | NETIF_F_GSO_SCTP | \
- NETIF_F_GSO_UDP_L4 | NETIF_F_GSO_FRAGLIST)
+#define NETIF_F_GSO_SOFTWARE netdev_gso_software_features
/*
* If one device supports one of these features, then enable them
* for all in netdev_increment_features.
*/
-#define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \
- NETIF_F_SG | NETIF_F_HIGHDMA | \
- NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED)
+#define NETIF_F_ONE_FOR_ALL netdev_one_for_all_features
/*
* If one device doesn't support one of these features, then disable it
* for all in netdev_increment_features.
*/
-#define NETIF_F_ALL_FOR_ALL (NETIF_F_NOCACHE_COPY | NETIF_F_FSO)
+#define NETIF_F_ALL_FOR_ALL netdev_all_for_all_features
/*
* If upper/master device has these features disabled, they must be disabled
* on all lower/slave devices as well.
*/
-#define NETIF_F_UPPER_DISABLES NETIF_F_LRO
+#define NETIF_F_UPPER_DISABLES netdev_upper_disable_features
/* changeable features with no special hardware requirements */
-#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO)
+#define NETIF_F_SOFT_FEATURES netdev_soft_features
/* Changeable features with no special hardware requirements that defaults to off. */
-#define NETIF_F_SOFT_FEATURES_OFF (NETIF_F_GRO_FRAGLIST | NETIF_F_GRO_UDP_FWD)
-
-#define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \
- NETIF_F_HW_VLAN_CTAG_RX | \
- NETIF_F_HW_VLAN_CTAG_TX | \
- NETIF_F_HW_VLAN_STAG_FILTER | \
- NETIF_F_HW_VLAN_STAG_RX | \
- NETIF_F_HW_VLAN_STAG_TX)
-
-#define NETIF_F_GSO_ENCAP_ALL (NETIF_F_GSO_GRE | \
- NETIF_F_GSO_GRE_CSUM | \
- NETIF_F_GSO_IPXIP4 | \
- NETIF_F_GSO_IPXIP6 | \
- NETIF_F_GSO_UDP_TUNNEL | \
- NETIF_F_GSO_UDP_TUNNEL_CSUM)
+#define NETIF_F_SOFT_FEATURES_OFF netdev_soft_off_features
+
+#define NETIF_F_VLAN_FEATURES netdev_all_vlan_features
+
+#define NETIF_F_GSO_ENCAP_ALL netdev_gso_encap_all_features
#endif /* _LINUX_NETDEV_FEATURES_H */
@@ -11229,6 +11229,117 @@ static struct pernet_operations __net_initdata default_device_ops = {
.exit_batch = default_device_exit_batch,
};
+static void netdev_features_init(void)
+{
+ netdev_features_t features;
+
+ netdev_features_set_array(netif_f_never_change_array,
+ ARRAY_SIZE(netif_f_never_change_array),
+ &netdev_never_change_features);
+
+ netdev_features_set_array(netif_f_gso_mask_array,
+ ARRAY_SIZE(netif_f_gso_mask_array),
+ &netdev_gso_features_mask);
+
+ netdev_features_set_array(netif_f_ip_csum_array,
+ ARRAY_SIZE(netif_f_ip_csum_array),
+ &netdev_ip_csum_features);
+
+ netdev_features_set_array(netif_f_csum_mask_array,
+ ARRAY_SIZE(netif_f_csum_mask_array),
+ &netdev_csum_features_mask);
+
+ netdev_features_set_array(netif_f_general_tso_array,
+ ARRAY_SIZE(netif_f_general_tso_array),
+ &netdev_general_tso_features);
+
+ netdev_features_set_array(netif_f_all_tso_array,
+ ARRAY_SIZE(netif_f_all_tso_array),
+ &netdev_all_tso_features);
+
+ netdev_features_set_array(netif_f_tso_ecn_array,
+ ARRAY_SIZE(netif_f_tso_ecn_array),
+ &netdev_tso_ecn_features);
+
+ netdev_features_set_array(netif_f_all_fcoe_array,
+ ARRAY_SIZE(netif_f_all_fcoe_array),
+ &netdev_all_fcoe_features);
+
+ netdev_features_set_array(netif_f_gso_soft_array,
+ ARRAY_SIZE(netif_f_gso_soft_array),
+ &netdev_gso_software_features);
+
+ netdev_features_set_array(netif_f_one_for_all_array,
+ ARRAY_SIZE(netif_f_one_for_all_array),
+ &netdev_one_for_all_features);
+
+ netdev_features_set_array(netif_f_all_for_all_array,
+ ARRAY_SIZE(netif_f_all_for_all_array),
+ &netdev_all_for_all_features);
+
+ netdev_features_set_array(netif_f_upper_disables_array,
+ ARRAY_SIZE(netif_f_upper_disables_array),
+ &netdev_upper_disable_features);
+
+ netdev_features_set_array(netif_f_soft_array,
+ ARRAY_SIZE(netif_f_soft_array),
+ &netdev_soft_features);
+
+ netdev_features_set_array(netif_f_soft_off_array,
+ ARRAY_SIZE(netif_f_soft_off_array),
+ &netdev_soft_off_features);
+
+ netdev_features_set_array(netif_f_rx_vlan_array,
+ ARRAY_SIZE(netif_f_rx_vlan_array),
+ &netdev_rx_vlan_features);
+
+ netdev_features_set_array(netif_f_tx_vlan_array,
+ ARRAY_SIZE(netif_f_tx_vlan_array),
+ &netdev_tx_vlan_features);
+
+ netdev_features_set_array(netif_f_vlan_filter_array,
+ ARRAY_SIZE(netif_f_vlan_filter_array),
+ &netdev_vlan_filter_features);
+
+ netdev_all_vlan_features = netdev_rx_vlan_features;
+ netdev_features_direct_or(&netdev_all_vlan_features,
+ netdev_tx_vlan_features);
+ netdev_features_direct_or(&netdev_all_vlan_features,
+ netdev_vlan_filter_features);
+
+ netdev_features_set_array(netif_f_ctag_vlan_array,
+ ARRAY_SIZE(netif_f_ctag_vlan_array),
+ &netdev_ctag_vlan_features);
+
+ netdev_features_set_array(netif_f_stag_vlan_array,
+ ARRAY_SIZE(netif_f_stag_vlan_array),
+ &netdev_stag_vlan_features);
+
+ netdev_features_set_array(netif_f_gso_encap_array,
+ ARRAY_SIZE(netif_f_gso_encap_array),
+ &netdev_gso_encap_all_features);
+
+ netdev_features_set_array(netif_f_xfrm_array,
+ ARRAY_SIZE(netif_f_xfrm_array),
+ &netdev_xfrm_features);
+
+ netdev_features_set_array(netif_f_tls_array,
+ ARRAY_SIZE(netif_f_tls_array),
+ &netdev_tls_features);
+
+ netdev_features_set_array(netif_f_vlan_mask_array,
+ ARRAY_SIZE(netif_f_vlan_mask_array),
+ &netdev_vlan_features_mask);
+
+ netdev_csum_gso_features_mask =
+ netdev_features_or(netdev_gso_software_features,
+ netdev_csum_features_mask);
+
+ netdev_features_fill(&features);
+ netdev_ethtool_features =
+ netdev_features_andnot(features, netdev_never_change_features);
+}
+
/*
* Initialize the DEV module. At boot time this walks the device list and
* unhooks any devices that fail to initialise (normally hardware not
@@ -11259,6 +11370,8 @@ static int __init net_dev_init(void)
if (register_pernet_subsys(&netdev_net_ops))
goto out;
+ netdev_features_init();
+
/*
* Initialise the packet receive queues.
*/
new file mode 100644
@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Network device features.
+ */
+
+#include <linux/netdev_features.h>
+
+netdev_features_t netdev_ethtool_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_ethtool_features);
+
+netdev_features_t netdev_never_change_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_never_change_features);
+
+netdev_features_t netdev_gso_features_mask __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_gso_features_mask);
+
+netdev_features_t netdev_ip_csum_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_ip_csum_features);
+
+netdev_features_t netdev_csum_features_mask __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_csum_features_mask);
+
+netdev_features_t netdev_general_tso_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_general_tso_features);
+
+netdev_features_t netdev_all_tso_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_all_tso_features);
+
+netdev_features_t netdev_tso_ecn_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_tso_ecn_features);
+
+netdev_features_t netdev_all_fcoe_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_all_fcoe_features);
+
+netdev_features_t netdev_gso_software_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_gso_software_features);
+
+netdev_features_t netdev_one_for_all_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_one_for_all_features);
+
+netdev_features_t netdev_all_for_all_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_all_for_all_features);
+
+netdev_features_t netdev_upper_disable_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_upper_disable_features);
+
+netdev_features_t netdev_soft_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_soft_features);
+
+netdev_features_t netdev_soft_off_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_soft_off_features);
+
+netdev_features_t netdev_all_vlan_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_all_vlan_features);
+
+netdev_features_t netdev_vlan_filter_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_vlan_filter_features);
+
+netdev_features_t netdev_rx_vlan_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_rx_vlan_features);
+
+netdev_features_t netdev_tx_vlan_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_tx_vlan_features);
+
+netdev_features_t netdev_ctag_vlan_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_ctag_vlan_features);
+
+netdev_features_t netdev_stag_vlan_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_stag_vlan_features);
+
+netdev_features_t netdev_gso_encap_all_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_gso_encap_all_features);
+
+netdev_features_t netdev_xfrm_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_xfrm_features);
+
+netdev_features_t netdev_tls_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_tls_features);
+
+netdev_features_t netdev_csum_gso_features_mask __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_csum_gso_features_mask);
+
+netdev_features_t netdev_vlan_features_mask __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_vlan_features_mask);
+
+const int netif_f_never_change_array[] = {
+ NETIF_F_VLAN_CHALLENGED_BIT,
+ NETIF_F_LLTX_BIT,
+ NETIF_F_NETNS_LOCAL_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_never_change_array);
+
+const int netif_f_gso_mask_array[] = {
+ NETIF_F_TSO_BIT,
+ NETIF_F_GSO_ROBUST_BIT,
+ NETIF_F_TSO_ECN_BIT,
+ NETIF_F_TSO_MANGLEID_BIT,
+ NETIF_F_TSO6_BIT,
+ NETIF_F_FSO_BIT,
+ NETIF_F_GSO_GRE_BIT,
+ NETIF_F_GSO_GRE_CSUM_BIT,
+ NETIF_F_GSO_IPXIP4_BIT,
+ NETIF_F_GSO_IPXIP6_BIT,
+ NETIF_F_GSO_UDP_TUNNEL_BIT,
+ NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,
+ NETIF_F_GSO_PARTIAL_BIT,
+ NETIF_F_GSO_TUNNEL_REMCSUM_BIT,
+ NETIF_F_GSO_SCTP_BIT,
+ NETIF_F_GSO_ESP_BIT,
+ NETIF_F_GSO_UDP_BIT,
+ NETIF_F_GSO_UDP_L4_BIT,
+ NETIF_F_GSO_FRAGLIST_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_gso_mask_array);
+
+const int netif_f_ip_csum_array[] = {
+ NETIF_F_IP_CSUM_BIT,
+ NETIF_F_IPV6_CSUM_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_ip_csum_array);
+
+const int netif_f_csum_mask_array[] = {
+ NETIF_F_IP_CSUM_BIT,
+ NETIF_F_IPV6_CSUM_BIT,
+ NETIF_F_HW_CSUM_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_csum_mask_array);
+
+const int netif_f_general_tso_array[] = {
+ NETIF_F_TSO_BIT,
+ NETIF_F_TSO6_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_general_tso_array);
+
+const int netif_f_all_tso_array[] = {
+ NETIF_F_TSO_BIT,
+ NETIF_F_TSO6_BIT,
+ NETIF_F_TSO_ECN_BIT,
+ NETIF_F_TSO_MANGLEID_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_all_tso_array);
+
+const int netif_f_tso_ecn_array[] = {
+ NETIF_F_TSO_ECN_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_tso_ecn_array);
+
+const int netif_f_all_fcoe_array[] = {
+ NETIF_F_FCOE_CRC_BIT,
+ NETIF_F_FCOE_MTU_BIT,
+ NETIF_F_FSO_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_all_fcoe_array);
+
+const int netif_f_gso_soft_array[] = {
+ NETIF_F_TSO_BIT,
+ NETIF_F_TSO6_BIT,
+ NETIF_F_TSO_ECN_BIT,
+ NETIF_F_TSO_MANGLEID_BIT,
+ NETIF_F_GSO_SCTP_BIT,
+ NETIF_F_GSO_UDP_L4_BIT,
+ NETIF_F_GSO_FRAGLIST_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_gso_soft_array);
+
+const int netif_f_one_for_all_array[] = {
+ NETIF_F_TSO_BIT,
+ NETIF_F_TSO6_BIT,
+ NETIF_F_TSO_ECN_BIT,
+ NETIF_F_TSO_MANGLEID_BIT,
+ NETIF_F_GSO_SCTP_BIT,
+ NETIF_F_GSO_UDP_L4_BIT,
+ NETIF_F_GSO_FRAGLIST_BIT,
+ NETIF_F_GSO_ROBUST_BIT,
+ NETIF_F_SG_BIT,
+ NETIF_F_HIGHDMA_BIT,
+ NETIF_F_FRAGLIST_BIT,
+ NETIF_F_VLAN_CHALLENGED,
+};
+EXPORT_SYMBOL_GPL(netif_f_one_for_all_array);
+
+const int netif_f_all_for_all_array[] = {
+ NETIF_F_NOCACHE_COPY_BIT,
+ NETIF_F_FSO_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_all_for_all_array);
+
+const int netif_f_upper_disables_array[] = {
+ NETIF_F_LRO_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_upper_disables_array);
+
+const int netif_f_soft_array[] = {
+ NETIF_F_GSO_BIT,
+ NETIF_F_GRO_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_soft_array);
+
+const int netif_f_soft_off_array[] = {
+ NETIF_F_GRO_FRAGLIST_BIT,
+ NETIF_F_GRO_UDP_FWD_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_soft_off_array);
+
+const int netif_f_vlan_array[] = {
+ NETIF_F_HW_VLAN_CTAG_FILTER_BIT,
+ NETIF_F_HW_VLAN_CTAG_RX_BIT,
+ NETIF_F_HW_VLAN_CTAG_TX_BIT,
+ NETIF_F_HW_VLAN_STAG_FILTER_BIT,
+ NETIF_F_HW_VLAN_STAG_RX_BIT,
+ NETIF_F_HW_VLAN_STAG_TX_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_vlan_array);
+
+const int netif_f_tx_vlan_array[] = {
+ NETIF_F_HW_VLAN_CTAG_TX_BIT,
+ NETIF_F_HW_VLAN_STAG_TX_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_tx_vlan_array);
+
+const int netif_f_rx_vlan_array[] = {
+ NETIF_F_HW_VLAN_CTAG_RX_BIT,
+ NETIF_F_HW_VLAN_STAG_RX_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_rx_vlan_array);
+
+const int netif_f_vlan_filter_array[] = {
+ NETIF_F_HW_VLAN_CTAG_FILTER_BIT,
+ NETIF_F_HW_VLAN_STAG_FILTER_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_vlan_filter_array);
+
+const int netif_f_ctag_vlan_array[] = {
+ NETIF_F_HW_VLAN_CTAG_TX_BIT,
+ NETIF_F_HW_VLAN_CTAG_RX_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_ctag_vlan_array);
+
+const int netif_f_stag_vlan_array[] = {
+ NETIF_F_HW_VLAN_STAG_TX_BIT,
+ NETIF_F_HW_VLAN_STAG_RX_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_stag_vlan_array);
+
+const int netif_f_gso_encap_array[] = {
+ NETIF_F_GSO_GRE_BIT,
+ NETIF_F_GSO_GRE_CSUM_BIT,
+ NETIF_F_GSO_IPXIP4_BIT,
+ NETIF_F_GSO_IPXIP6_BIT,
+ NETIF_F_GSO_UDP_TUNNEL_BIT,
+ NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,
+};
+EXPORT_SYMBOL_GPL(netif_f_gso_encap_array);
+
+const int netif_f_xfrm_array[] = {
+ NETIF_F_HW_ESP_BIT,
+ NETIF_F_HW_ESP_TX_CSUM_BIT,
+ NETIF_F_GSO_ESP_BIT
+};
+EXPORT_SYMBOL_GPL(netif_f_xfrm_array);
+
+const int netif_f_tls_array[] = {
+ NETIF_F_HW_TLS_TX_BIT,
+ NETIF_F_HW_TLS_RX_BIT
+};
+EXPORT_SYMBOL_GPL(netif_f_tls_array);
+
+const int netif_f_vlan_mask_array[] = {
+ NETIF_F_SG_BIT,
+ NETIF_F_HIGHDMA_BIT,
+ NETIF_F_HW_CSUM_BIT,
+ NETIF_F_FRAGLIST_BIT,
+ NETIF_F_HW_VLAN_CTAG_TX_BIT,
+ NETIF_F_HW_VLAN_STAG_TX_BIT
+};
+EXPORT_SYMBOL_GPL(netif_f_vlan_mask_array);
There are many netdev_features bits group used in kernel. The definition will be illegal when using feature bit more than 64. Replace these macroes with global netdev_features variables, initialize them when netdev module init. Signed-off-by: Jian Shen <shenjian15@huawei.com> --- include/linux/netdev_features.h | 104 +++++++----- net/core/dev.c | 113 +++++++++++++ net/core/netdev_features.c | 276 ++++++++++++++++++++++++++++++++ 3 files changed, 457 insertions(+), 36 deletions(-) create mode 100644 net/core/netdev_features.c