From patchwork Sun Sep 18 09:42:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "shenjian (K)" X-Patchwork-Id: 12979403 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 918E2C32771 for ; Sun, 18 Sep 2022 09:50:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229844AbiIRJu2 (ORCPT ); Sun, 18 Sep 2022 05:50:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229757AbiIRJt7 (ORCPT ); Sun, 18 Sep 2022 05:49:59 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4643211C3E for ; Sun, 18 Sep 2022 02:49:49 -0700 (PDT) Received: from dggpeml500022.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4MVjdK2KH1zpStg; Sun, 18 Sep 2022 17:47:01 +0800 (CST) Received: from localhost.localdomain (10.67.165.24) by dggpeml500022.china.huawei.com (7.185.36.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Sun, 18 Sep 2022 17:49:46 +0800 From: Jian Shen To: , , , , , , , CC: , Subject: [RFCv8 PATCH net-next 02/55] net: replace general features macroes with global netdev_features variables Date: Sun, 18 Sep 2022 09:42:43 +0000 Message-ID: <20220918094336.28958-3-shenjian15@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220918094336.28958-1-shenjian15@huawei.com> References: <20220918094336.28958-1-shenjian15@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.24] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpeml500022.china.huawei.com (7.185.36.66) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC 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 --- 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 #include +#include #include 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 +#include + +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); +}