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Date: Sun, 18 Sep 2022 09:42:43 +0000
From: Jian Shen <shenjian15@...wei.com>
To: <davem@...emloft.net>, <kuba@...nel.org>, <ecree.xilinx@...il.com>,
<andrew@...n.ch>, <hkallweit1@...il.com>,
<alexandr.lobakin@...el.com>, <saeed@...nel.org>, <leon@...nel.org>
CC: <netdev@...r.kernel.org>, <linuxarm@...wei.com>
Subject: [RFCv8 PATCH net-next 02/55] net: replace general features macroes with global netdev_features variables
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 net device
module init.
Signed-off-by: Jian Shen <shenjian15@...wei.com>
---
drivers/net/wireguard/device.c | 12 +-
include/linux/netdev_feature_helpers.h | 112 +++++++++++++
include/linux/netdev_features.h | 84 ++++++----
net/core/Makefile | 2 +-
net/core/dev.c | 2 +
net/core/dev.h | 2 +
net/core/netdev_features.c | 223 +++++++++++++++++++++++++
7 files changed, 394 insertions(+), 43 deletions(-)
create mode 100644 net/core/netdev_features.c
diff --git a/drivers/net/wireguard/device.c b/drivers/net/wireguard/device.c
index d58e9f818d3b..32831d40d757 100644
--- a/drivers/net/wireguard/device.c
+++ b/drivers/net/wireguard/device.c
@@ -275,9 +275,9 @@ static const struct device_type device_type = { .name = KBUILD_MODNAME };
static void wg_setup(struct net_device *dev)
{
struct wg_device *wg = netdev_priv(dev);
- enum { WG_NETDEV_FEATURES = NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
- NETIF_F_SG | NETIF_F_GSO |
- NETIF_F_GSO_SOFTWARE | NETIF_F_HIGHDMA };
+ netdev_features_t wg_netdev_features =
+ NETIF_F_HW_CSUM | NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO |
+ NETIF_F_GSO_SOFTWARE | NETIF_F_HIGHDMA;
const int overhead = MESSAGE_MINIMUM_LENGTH + sizeof(struct udphdr) +
max(sizeof(struct ipv6hdr), sizeof(struct iphdr));
@@ -291,9 +291,9 @@ static void wg_setup(struct net_device *dev)
dev->flags = IFF_POINTOPOINT | IFF_NOARP;
dev->priv_flags |= IFF_NO_QUEUE;
dev->features |= NETIF_F_LLTX;
- dev->features |= WG_NETDEV_FEATURES;
- dev->hw_features |= WG_NETDEV_FEATURES;
- dev->hw_enc_features |= WG_NETDEV_FEATURES;
+ dev->features |= wg_netdev_features;
+ dev->hw_features |= wg_netdev_features;
+ dev->hw_enc_features |= wg_netdev_features;
dev->mtu = ETH_DATA_LEN - overhead;
dev->max_mtu = round_down(INT_MAX, MESSAGE_PADDING_MULTIPLE) - overhead;
diff --git a/include/linux/netdev_feature_helpers.h b/include/linux/netdev_feature_helpers.h
index 4bb5de61e4e9..132bf0de1523 100644
--- a/include/linux/netdev_feature_helpers.h
+++ b/include/linux/netdev_feature_helpers.h
@@ -585,6 +585,118 @@ static inline bool __netdev_features_subset(const netdev_features_t *feats1,
#define netdev_features_subset(feats1, feats2) \
__netdev_features_subset(&(feats1), &(feats2))
+#define __netdev_features_set_set(feat, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ __netdev_features_set_array(&(uniq), &(feat)); \
+})
+#define netdev_features_set_set(feat, ...) \
+ __netdev_features_set_set(feat, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_active_features_set_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_active_features_set_array(ndev, uniq); \
+})
+#define netdev_active_features_set_set(ndev, ...) \
+ __netdev_active_features_set_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_hw_features_set_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_hw_features_set_array(ndev, uniq); \
+})
+#define netdev_hw_features_set_set(ndev, ...) \
+ __netdev_hw_features_set_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_wanted_features_set_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_wanted_features_set_array(ndev, uniq); \
+})
+#define netdev_wanted_features_set_set(ndev, ...) \
+ __netdev_wanted_features_set_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_vlan_features_set_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_vlan_features_set_array(ndev, uniq); \
+})
+#define netdev_vlan_features_set_set(ndev, ...) \
+ __netdev_vlan_features_set_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_hw_enc_features_set_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_hw_enc_features_set_array(ndev, uniq); \
+})
+#define netdev_hw_enc_features_set_set(ndev, ...) \
+ __netdev_hw_enc_features_set_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_mpls_features_set_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_mpls_features_set_array(ndev, uniq); \
+})
+#define netdev_mpls_features_set_set(ndev, ...) \
+ __netdev_mpls_features_set_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_gso_partial_features_set_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_gso_partial_features_set_array(ndev, uniq); \
+})
+#define netdev_gso_partial_features_set_set(ndev, ...) \
+ __netdev_gso_partial_features_set_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_features_clear_set(feat, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ __netdev_features_clear_array(&(uniq), &(feat)); \
+})
+#define netdev_features_clear_set(feat, ...) \
+ __netdev_features_clear_set(feat, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_active_features_clear_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_active_features_clear_array(ndev, uniq); \
+})
+#define netdev_active_features_clear_set(ndev, ...) \
+ __netdev_active_features_clear_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_hw_features_clear_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_hw_features_clear_array(ndev, uniq); \
+})
+#define netdev_hw_features_clear_set(ndev, ...) \
+ __netdev_hw_features_clear_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_wanted_features_clear_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_wanted_features_clear_array(ndev, uniq); \
+})
+#define netdev_wanted_features_clear_set(ndev, ...) \
+ __netdev_wanted_features_clear_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_vlan_features_clear_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_vlan_features_clear_array(ndev, uniq); \
+})
+#define netdev_vlan_features_clear_set(ndev, ...) \
+ __netdev_vlan_features_clear_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_hw_enc_features_clear_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_hw_enc_features_clear_array(ndev, uniq); \
+})
+#define netdev_hw_enc_features_clear_set(ndev, ...) \
+ __netdev_hw_enc_features_clear_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_mpls_features_clear_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_mpls_features_clear_array(ndev, uniq); \
+})
+#define netdev_mpls_features_clear_set(ndev, ...) \
+ __netdev_mpls_features_clear_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
+#define __netdev_gso_partial_features_clear_set(ndev, uniq, ...) ({ \
+ static DECLARE_NETDEV_FEATURE_SET(uniq, __VA_ARGS__); \
+ netdev_gso_partial_features_clear_array(ndev, uniq); \
+})
+#define netdev_gso_partial_features_clear_set(ndev, ...) \
+ __netdev_gso_partial_features_clear_set(ndev, __UNIQUE_ID(feat_set), __VA_ARGS__)
+
static inline netdev_features_t netdev_intersect_features(netdev_features_t f1,
netdev_features_t f2)
{
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 9d434b4e6e6e..664055209b2e 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -7,6 +7,7 @@
#include <linux/types.h>
#include <linux/bitops.h>
+#include <linux/cache.h>
#include <asm/byteorder.h>
typedef u64 netdev_features_t;
@@ -112,6 +113,37 @@ enum {
/**/NETDEV_FEATURE_COUNT
};
+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_offload_features __ro_after_init;
+extern netdev_features_t netdev_stag_vlan_offload_features __ro_after_init;
+extern netdev_features_t netdev_vlan_offload_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_multi_tags_features_mask __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_empty_features __ro_after_init;
+
/* copy'n'paste compression ;) */
#define __NETIF_F_BIT(bit) ((netdev_features_t)1 << (bit))
#define __NETIF_F(name) __NETIF_F_BIT(NETIF_F_##name##_BIT)
@@ -203,73 +235,53 @@ static inline int find_next_netdev_feature(u64 feature, unsigned long start)
/* 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 */
diff --git a/net/core/Makefile b/net/core/Makefile
index 5857cec87b83..77618bfaa890 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -12,7 +12,7 @@ obj-$(CONFIG_SYSCTL) += sysctl_net_core.o
obj-y += dev.o dev_addr_lists.o dst.o netevent.o \
neighbour.o rtnetlink.o utils.o link_watch.o filter.o \
sock_diag.o dev_ioctl.o tso.o sock_reuseport.o \
- fib_notifier.o xdp.o flow_offload.o gro.o
+ fib_notifier.o xdp.o flow_offload.o gro.o netdev_features.o
obj-$(CONFIG_NETDEV_ADDR_LIST_TEST) += dev_addr_lists_test.o
diff --git a/net/core/dev.c b/net/core/dev.c
index fdae614ecffa..491130bdbbad 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -11390,6 +11390,8 @@ static int __init net_dev_init(void)
if (register_pernet_subsys(&netdev_net_ops))
goto out;
+ netdev_features_init();
+
/*
* Initialise the packet receive queues.
*/
diff --git a/net/core/dev.h b/net/core/dev.h
index cbb8a925175a..b4aae4f2bd9b 100644
--- a/net/core/dev.h
+++ b/net/core/dev.h
@@ -88,6 +88,8 @@ int dev_change_carrier(struct net_device *dev, bool new_carrier);
void __dev_set_rx_mode(struct net_device *dev);
+void __init netdev_features_init(void);
+
static inline void netif_set_gso_max_size(struct net_device *dev,
unsigned int size)
{
diff --git a/net/core/netdev_features.c b/net/core/netdev_features.c
new file mode 100644
index 000000000000..a017c8fc6e65
--- /dev/null
+++ b/net/core/netdev_features.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Network device features.
+ */
+
+#include <linux/netdev_features.h>
+#include <linux/netdev_feature_helpers.h>
+
+netdev_features_t netdev_ethtool_features __ro_after_init;
+EXPORT_SYMBOL(netdev_ethtool_features);
+
+netdev_features_t netdev_never_change_features __ro_after_init;
+EXPORT_SYMBOL(netdev_never_change_features);
+
+netdev_features_t netdev_gso_features_mask __ro_after_init;
+EXPORT_SYMBOL(netdev_gso_features_mask);
+
+netdev_features_t netdev_ip_csum_features __ro_after_init;
+EXPORT_SYMBOL(netdev_ip_csum_features);
+
+netdev_features_t netdev_csum_features_mask __ro_after_init;
+EXPORT_SYMBOL(netdev_csum_features_mask);
+
+netdev_features_t netdev_general_tso_features __ro_after_init;
+EXPORT_SYMBOL(netdev_general_tso_features);
+
+netdev_features_t netdev_all_tso_features __ro_after_init;
+EXPORT_SYMBOL(netdev_all_tso_features);
+
+netdev_features_t netdev_tso_ecn_features __ro_after_init;
+EXPORT_SYMBOL(netdev_tso_ecn_features);
+
+netdev_features_t netdev_all_fcoe_features __ro_after_init;
+EXPORT_SYMBOL(netdev_all_fcoe_features);
+
+netdev_features_t netdev_gso_software_features __ro_after_init;
+EXPORT_SYMBOL(netdev_gso_software_features);
+
+netdev_features_t netdev_one_for_all_features __ro_after_init;
+EXPORT_SYMBOL(netdev_one_for_all_features);
+
+netdev_features_t netdev_all_for_all_features __ro_after_init;
+EXPORT_SYMBOL(netdev_all_for_all_features);
+
+netdev_features_t netdev_upper_disable_features __ro_after_init;
+EXPORT_SYMBOL(netdev_upper_disable_features);
+
+netdev_features_t netdev_soft_features __ro_after_init;
+EXPORT_SYMBOL(netdev_soft_features);
+
+netdev_features_t netdev_soft_off_features __ro_after_init;
+EXPORT_SYMBOL(netdev_soft_off_features);
+
+netdev_features_t netdev_all_vlan_features __ro_after_init;
+EXPORT_SYMBOL(netdev_all_vlan_features);
+
+netdev_features_t netdev_vlan_filter_features __ro_after_init;
+EXPORT_SYMBOL(netdev_vlan_filter_features);
+
+netdev_features_t netdev_rx_vlan_features __ro_after_init;
+EXPORT_SYMBOL(netdev_rx_vlan_features);
+
+netdev_features_t netdev_tx_vlan_features __ro_after_init;
+EXPORT_SYMBOL(netdev_tx_vlan_features);
+
+netdev_features_t netdev_ctag_vlan_offload_features __ro_after_init;
+EXPORT_SYMBOL(netdev_ctag_vlan_offload_features);
+
+netdev_features_t netdev_stag_vlan_offload_features __ro_after_init;
+EXPORT_SYMBOL(netdev_stag_vlan_offload_features);
+
+netdev_features_t netdev_vlan_offload_features __ro_after_init;
+EXPORT_SYMBOL(netdev_vlan_offload_features);
+
+netdev_features_t netdev_ctag_vlan_features __ro_after_init;
+EXPORT_SYMBOL(netdev_ctag_vlan_features);
+
+netdev_features_t netdev_stag_vlan_features __ro_after_init;
+EXPORT_SYMBOL(netdev_stag_vlan_features);
+
+netdev_features_t netdev_multi_tags_features_mask __ro_after_init;
+EXPORT_SYMBOL(netdev_multi_tags_features_mask);
+
+netdev_features_t netdev_gso_encap_all_features __ro_after_init;
+EXPORT_SYMBOL(netdev_gso_encap_all_features);
+
+netdev_features_t netdev_xfrm_features __ro_after_init;
+EXPORT_SYMBOL(netdev_xfrm_features);
+
+netdev_features_t netdev_tls_features __ro_after_init;
+EXPORT_SYMBOL(netdev_tls_features);
+
+netdev_features_t netdev_csum_gso_features_mask __ro_after_init;
+EXPORT_SYMBOL(netdev_csum_gso_features_mask);
+
+netdev_features_t netdev_empty_features __ro_after_init;
+EXPORT_SYMBOL_GPL(netdev_empty_features);
+
+void __init netdev_features_init(void)
+{
+ netdev_features_t features;
+
+ netdev_features_set_set(netdev_ip_csum_features,
+ NETIF_F_IP_CSUM_BIT, NETIF_F_IPV6_CSUM_BIT);
+ netdev_features_set_set(netdev_csum_features_mask,
+ NETIF_F_IP_CSUM_BIT, NETIF_F_IPV6_CSUM_BIT,
+ NETIF_F_HW_CSUM_BIT);
+
+ netdev_features_set_set(netdev_gso_features_mask,
+ 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);
+ netdev_features_set_set(netdev_general_tso_features,
+ NETIF_F_TSO_BIT, NETIF_F_TSO6_BIT);
+ netdev_features_set_set(netdev_all_tso_features,
+ NETIF_F_TSO_BIT, NETIF_F_TSO6_BIT,
+ NETIF_F_TSO_ECN_BIT, NETIF_F_TSO_MANGLEID_BIT);
+ netdev_features_set_set(netdev_tso_ecn_features,
+ NETIF_F_TSO_ECN_BIT);
+ netdev_features_set_set(netdev_all_fcoe_features,
+ NETIF_F_FCOE_CRC_BIT, NETIF_F_FCOE_MTU_BIT,
+ NETIF_F_FSO_BIT);
+ netdev_features_set_set(netdev_gso_software_features,
+ 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);
+ netdev_features_set_set(netdev_gso_encap_all_features,
+ 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);
+
+ netdev_features_or(netdev_csum_gso_features_mask,
+ netdev_gso_features_mask, netdev_csum_features_mask);
+
+ netdev_features_set_set(netdev_one_for_all_features,
+ 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_BIT);
+ netdev_features_set_set(netdev_all_for_all_features,
+ NETIF_F_NOCACHE_COPY_BIT, NETIF_F_FSO_BIT);
+
+ netdev_features_set_set(netdev_upper_disable_features, NETIF_F_LRO_BIT);
+
+ netdev_features_set_set(netdev_soft_features,
+ NETIF_F_GSO_BIT, NETIF_F_GRO_BIT);
+ netdev_features_set_set(netdev_soft_off_features,
+ NETIF_F_GRO_FRAGLIST_BIT,
+ NETIF_F_GRO_UDP_FWD_BIT);
+
+ netdev_features_set_set(netdev_rx_vlan_features,
+ NETIF_F_HW_VLAN_CTAG_RX_BIT,
+ NETIF_F_HW_VLAN_STAG_RX_BIT);
+ netdev_features_set_set(netdev_tx_vlan_features,
+ NETIF_F_HW_VLAN_CTAG_TX_BIT,
+ NETIF_F_HW_VLAN_STAG_TX_BIT);
+ netdev_features_set_set(netdev_vlan_filter_features,
+ NETIF_F_HW_VLAN_CTAG_FILTER_BIT,
+ NETIF_F_HW_VLAN_STAG_FILTER_BIT);
+ netdev_features_set_set(netdev_ctag_vlan_offload_features,
+ NETIF_F_HW_VLAN_CTAG_TX_BIT,
+ NETIF_F_HW_VLAN_CTAG_RX_BIT);
+ netdev_features_set_set(netdev_stag_vlan_offload_features,
+ NETIF_F_HW_VLAN_STAG_TX_BIT,
+ NETIF_F_HW_VLAN_STAG_RX_BIT);
+ netdev_features_or(netdev_vlan_offload_features,
+ netdev_ctag_vlan_offload_features,
+ netdev_stag_vlan_offload_features);
+ netdev_features_set_set(netdev_ctag_vlan_features,
+ NETIF_F_HW_VLAN_CTAG_TX_BIT,
+ NETIF_F_HW_VLAN_CTAG_RX_BIT,
+ NETIF_F_HW_VLAN_CTAG_FILTER_BIT);
+ netdev_features_set_set(netdev_stag_vlan_features,
+ NETIF_F_HW_VLAN_STAG_TX_BIT,
+ NETIF_F_HW_VLAN_STAG_RX_BIT,
+ NETIF_F_HW_VLAN_STAG_FILTER_BIT);
+ netdev_features_or(netdev_all_vlan_features, netdev_ctag_vlan_features,
+ netdev_stag_vlan_features);
+ netdev_features_set_set(netdev_multi_tags_features_mask,
+ 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);
+
+ netdev_features_set_set(netdev_xfrm_features,
+ NETIF_F_HW_ESP_BIT,
+ NETIF_F_HW_ESP_TX_CSUM_BIT,
+ NETIF_F_GSO_ESP_BIT);
+ netdev_features_set_set(netdev_tls_features,
+ NETIF_F_HW_TLS_TX_BIT,
+ NETIF_F_HW_TLS_RX_BIT);
+
+ netdev_features_set_set(netdev_never_change_features,
+ NETIF_F_VLAN_CHALLENGED_BIT,
+ NETIF_F_LLTX_BIT,
+ NETIF_F_NETNS_LOCAL_BIT);
+ netdev_features_fill(features);
+ netdev_features_andnot(netdev_ethtool_features, features,
+ netdev_never_change_features);
+
+ netdev_features_zero(netdev_empty_features);
+}
--
2.33.0
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