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Message-Id: <20220810095800.1304489-1-alexandr.lobakin@intel.com> Date: Wed, 10 Aug 2022 11:58:00 +0200 From: Alexander Lobakin <alexandr.lobakin@...el.com> To: Jian Shen <shenjian15@...wei.com> Cc: Alexander Lobakin <alexandr.lobakin@...el.com>, davem@...emloft.net, kuba@...nel.org, andrew@...n.ch, ecree.xilinx@...il.com, hkallweit1@...il.com, saeed@...nel.org, leon@...nel.org, netdev@...r.kernel.org, linuxarm@...neuler.org Subject: Re: [RFCv7 PATCH net-next 02/36] net: replace general features macroes with global netdev_features variables From: Jian Shen <shenjian15@...wei.com> Date: Wed, 10 Aug 2022 11:05:50 +0800 > 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@...wei.com> > --- > drivers/net/hyperv/hyperv_net.h | 5 +- > include/linux/netdev_features.h | 111 +++++++++---- > net/core/Makefile | 2 +- > net/core/dev.c | 83 ++++++++++ > net/core/netdev_features.c | 281 ++++++++++++++++++++++++++++++++ > 5 files changed, 441 insertions(+), 41 deletions(-) > create mode 100644 net/core/netdev_features.c > > diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h > index 25b38a374e3c..6336ed81fb8c 100644 > --- a/drivers/net/hyperv/hyperv_net.h > +++ b/drivers/net/hyperv/hyperv_net.h > @@ -873,10 +873,7 @@ struct nvsp_message { > #define NETVSC_RECEIVE_BUFFER_ID 0xcafe > #define NETVSC_SEND_BUFFER_ID 0 > > -#define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \ > - NETIF_F_TSO | NETIF_F_IPV6_CSUM | \ > - NETIF_F_TSO6 | NETIF_F_LRO | \ > - NETIF_F_SG | NETIF_F_RXHASH) > +#define NETVSC_SUPPORTED_HW_FEATURES netvsc_supported_hw_features > > #define VRSS_SEND_TAB_SIZE 16 /* must be power of 2 */ > #define VRSS_CHANNEL_MAX 64 > diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h > index 9d434b4e6e6e..a005c781fabf 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 +113,64 @@ 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; > +extern netdev_features_t netvsc_supported_hw_features __ro_after_init; netvsc stuff belongs to hyperv_net driver, I'd place it there. Those features aren't used outside of it I believe. > +extern const struct netdev_feature_set netif_f_never_change_feature_set; > +extern const struct netdev_feature_set netif_f_gso_feature_set_mask; > +extern const struct netdev_feature_set netif_f_ip_csum_feature_set; > +extern const struct netdev_feature_set netif_f_csum_feature_set_mask; > +extern const struct netdev_feature_set netif_f_general_tso_feature_set; > +extern const struct netdev_feature_set netif_f_all_tso_feature_set; > +extern const struct netdev_feature_set netif_f_tso_ecn_feature_set; > +extern const struct netdev_feature_set netif_f_all_fcoe_feature_set; > +extern const struct netdev_feature_set netif_f_gso_soft_feature_set; > +extern const struct netdev_feature_set netif_f_one_for_all_feature_set; > +extern const struct netdev_feature_set netif_f_all_for_all_feature_set; > +extern const struct netdev_feature_set netif_f_upper_disables_feature_set; > +extern const struct netdev_feature_set netif_f_soft_feature_set; > +extern const struct netdev_feature_set netif_f_soft_off_feature_set; > +extern const struct netdev_feature_set netif_f_tx_vlan_feature_set; > +extern const struct netdev_feature_set netif_f_rx_vlan_feature_set; > +extern const struct netdev_feature_set netif_f_vlan_filter_feature_set; > +extern const struct netdev_feature_set netif_f_ctag_vlan_feature_set; > +extern const struct netdev_feature_set netif_f_stag_vlan_feature_set; > +extern const struct netdev_feature_set netif_f_ctag_vlan_offload_feature_set; > +extern const struct netdev_feature_set netif_f_stag_vlan_offload_feature_set; > +extern const struct netdev_feature_set netif_f_multi_tags_feature_set_mask; > +extern const struct netdev_feature_set netif_f_gso_encap_feature_set; > +extern const struct netdev_feature_set netif_f_xfrm_feature_set; > +extern const struct netdev_feature_set netif_f_tls_feature_set; > +extern const struct netdev_feature_set netvsc_supported_hw_feature_set; > + > /* 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 +262,53 @@ 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 e8ce3bd283a6..360a101584c8 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 45e80c84497f..9603bac63ffb 100644 > --- a/net/core/dev.c > +++ b/net/core/dev.c > @@ -146,6 +146,7 @@ > #include <linux/sctp.h> > #include <net/udp_tunnel.h> > #include <linux/net_namespace.h> > +#include <linux/netdev_features_helper.h> > #include <linux/indirect_call_wrapper.h> > #include <net/devlink.h> > #include <linux/pm_runtime.h> > @@ -11362,6 +11363,86 @@ static struct pernet_operations __net_initdata default_device_ops = { > .exit_batch = default_device_exit_batch, > }; > > +static void __init netdev_features_init(void) Given that you're creating a new file dedicated to netdev features, I'd place that initializer there. You can then declare its proto in net/core/dev.h. > +{ > + netdev_features_t features; > + > + netdev_features_set_array(&netif_f_ip_csum_feature_set, > + &netdev_ip_csum_features); > + netdev_features_set_array(&netif_f_csum_feature_set_mask, > + &netdev_csum_features_mask); > + > + netdev_features_set_array(&netif_f_gso_feature_set_mask, > + &netdev_gso_features_mask); > + netdev_features_set_array(&netif_f_general_tso_feature_set, > + &netdev_general_tso_features); > + netdev_features_set_array(&netif_f_all_tso_feature_set, > + &netdev_all_tso_features); > + netdev_features_set_array(&netif_f_tso_ecn_feature_set, > + &netdev_tso_ecn_features); > + netdev_features_set_array(&netif_f_all_fcoe_feature_set, > + &netdev_all_fcoe_features); > + netdev_features_set_array(&netif_f_gso_soft_feature_set, > + &netdev_gso_software_features); > + netdev_features_set_array(&netif_f_gso_encap_feature_set, > + &netdev_gso_encap_all_features); > + > + netdev_csum_gso_features_mask = > + netdev_features_or(netdev_gso_features_mask, > + netdev_csum_features_mask); (I forgot to mention this in 01/36 ._.) As you're converting to bitmaps, you should probably avoid direct assignments. All the bitmap_*() modification functions take a pointer to the destination as a first argument. So it should be netdev_features_or(netdev_features_t *dst, const netdev_features_t *src1, const netdev_features_t *src1); > + > + netdev_features_set_array(&netif_f_one_for_all_feature_set, > + &netdev_one_for_all_features); Does it make sense to prefix features and the corresponding sets differently? Why not just 'netdev_' for both of them? > + netdev_features_set_array(&netif_f_all_for_all_feature_set, > + &netdev_all_for_all_features); > + > + netdev_features_set_array(&netif_f_upper_disables_feature_set, > + &netdev_upper_disable_features); > + > + netdev_features_set_array(&netif_f_soft_feature_set, > + &netdev_soft_features); > + netdev_features_set_array(&netif_f_soft_off_feature_set, > + &netdev_soft_off_features); > + > + netdev_features_set_array(&netif_f_rx_vlan_feature_set, > + &netdev_rx_vlan_features); > + netdev_features_set_array(&netif_f_tx_vlan_feature_set, > + &netdev_tx_vlan_features); > + netdev_features_set_array(&netif_f_vlan_filter_feature_set, > + &netdev_vlan_filter_features); > + netdev_all_vlan_features = netdev_features_or(netdev_rx_vlan_features, > + netdev_tx_vlan_features); > + netdev_features_set_array(&netif_f_ctag_vlan_offload_feature_set, > + &netdev_ctag_vlan_offload_features); > + netdev_features_set_array(&netif_f_stag_vlan_offload_feature_set, > + &netdev_stag_vlan_offload_features); > + netdev_vlan_offload_features = > + netdev_features_or(netdev_ctag_vlan_offload_features, > + netdev_stag_vlan_offload_features); > + netdev_features_set_array(&netif_f_ctag_vlan_feature_set, > + &netdev_ctag_vlan_features); > + netdev_features_set_array(&netif_f_stag_vlan_feature_set, > + &netdev_stag_vlan_features); > + netdev_features_set_array(&netif_f_multi_tags_feature_set_mask, > + &netdev_multi_tags_features_mask); > + > + netdev_features_set_array(&netif_f_xfrm_feature_set, > + &netdev_xfrm_features); > + netdev_features_set_array(&netif_f_tls_feature_set, > + &netdev_tls_features); > + > + netdev_features_set_array(&netif_f_never_change_feature_set, > + &netdev_never_change_features); > + netdev_features_fill(&features); > + netdev_ethtool_features = > + netdev_features_andnot(features, netdev_never_change_features); > + > + netdev_features_zero(&netdev_empty_features); > + > + netdev_features_set_array(&netvsc_supported_hw_feature_set, > + &netvsc_supported_hw_features); > +} > + > /* > * Initialize the DEV module. At boot time this walks the device list and > * unhooks any devices that fail to initialise (normally hardware not > @@ -11392,6 +11473,8 @@ 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/netdev_features.c b/net/core/netdev_features.c > new file mode 100644 > index 000000000000..158c750ea7a2 > --- /dev/null > +++ b/net/core/netdev_features.c > @@ -0,0 +1,281 @@ > +// 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); I think GPL is too strict for such a core functionality. I mean, I personally don't use non-GPL and don't work on such stuff, but there must be plenty of non-GPL networking drivers, and with this change they will simply stop working. Not that I don't like it :D But there definitely will be argues and "angry" articles. > + > +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_offload_features __ro_after_init; > +EXPORT_SYMBOL_GPL(netdev_ctag_vlan_offload_features); > + > +netdev_features_t netdev_stag_vlan_offload_features __ro_after_init; > +EXPORT_SYMBOL_GPL(netdev_stag_vlan_offload_features); > + > +netdev_features_t netdev_vlan_offload_features __ro_after_init; > +EXPORT_SYMBOL_GPL(netdev_vlan_offload_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_multi_tags_features_mask __ro_after_init; > +EXPORT_SYMBOL_GPL(netdev_multi_tags_features_mask); > + > +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_empty_features __ro_after_init; > +EXPORT_SYMBOL_GPL(netdev_empty_features); > + > +netdev_features_t netvsc_supported_hw_features __ro_after_init; > +EXPORT_SYMBOL_GPL(netvsc_supported_hw_features); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_never_change_feature_set, > + NETIF_F_VLAN_CHALLENGED_BIT, > + NETIF_F_LLTX_BIT, > + NETIF_F_NETNS_LOCAL_BIT); > +EXPORT_SYMBOL_GPL(netif_f_never_change_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_gso_feature_set_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); > +EXPORT_SYMBOL_GPL(netif_f_gso_feature_set_mask); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_ip_csum_feature_set, > + NETIF_F_IP_CSUM_BIT, > + NETIF_F_IPV6_CSUM_BIT); > +EXPORT_SYMBOL_GPL(netif_f_ip_csum_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_csum_feature_set_mask, > + NETIF_F_IP_CSUM_BIT, > + NETIF_F_IPV6_CSUM_BIT, > + NETIF_F_HW_CSUM_BIT); > +EXPORT_SYMBOL_GPL(netif_f_csum_feature_set_mask); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_general_tso_feature_set, > + NETIF_F_TSO_BIT, > + NETIF_F_TSO6_BIT); > +EXPORT_SYMBOL_GPL(netif_f_general_tso_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_all_tso_feature_set, > + 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_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_tso_ecn_feature_set, > + NETIF_F_TSO_ECN_BIT); > +EXPORT_SYMBOL_GPL(netif_f_tso_ecn_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_all_fcoe_feature_set, > + NETIF_F_FCOE_CRC_BIT, > + NETIF_F_FCOE_MTU_BIT, > + NETIF_F_FSO_BIT); > +EXPORT_SYMBOL_GPL(netif_f_all_fcoe_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_gso_soft_feature_set, > + 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_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_one_for_all_feature_set, > + 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); > +EXPORT_SYMBOL_GPL(netif_f_one_for_all_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_all_for_all_feature_set, > + NETIF_F_NOCACHE_COPY_BIT, > + NETIF_F_FSO_BIT); > +EXPORT_SYMBOL_GPL(netif_f_all_for_all_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_upper_disables_feature_set, > + NETIF_F_LRO_BIT); > +EXPORT_SYMBOL_GPL(netif_f_upper_disables_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_soft_feature_set, > + NETIF_F_GSO_BIT, > + NETIF_F_GRO_BIT); > +EXPORT_SYMBOL_GPL(netif_f_soft_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_soft_off_feature_set, > + NETIF_F_GRO_FRAGLIST_BIT, > + NETIF_F_GRO_UDP_FWD_BIT); > +EXPORT_SYMBOL_GPL(netif_f_soft_off_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_tx_vlan_feature_set, > + NETIF_F_HW_VLAN_CTAG_TX_BIT, > + NETIF_F_HW_VLAN_STAG_TX_BIT); > +EXPORT_SYMBOL_GPL(netif_f_tx_vlan_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_rx_vlan_feature_set, > + NETIF_F_HW_VLAN_CTAG_RX_BIT, > + NETIF_F_HW_VLAN_STAG_RX_BIT); > +EXPORT_SYMBOL_GPL(netif_f_rx_vlan_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_vlan_filter_feature_set, > + NETIF_F_HW_VLAN_CTAG_FILTER_BIT, > + NETIF_F_HW_VLAN_STAG_FILTER_BIT); > +EXPORT_SYMBOL_GPL(netif_f_vlan_filter_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_ctag_vlan_offload_feature_set, > + NETIF_F_HW_VLAN_CTAG_TX_BIT, > + NETIF_F_HW_VLAN_CTAG_RX_BIT); > +EXPORT_SYMBOL_GPL(netif_f_ctag_vlan_offload_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_stag_vlan_offload_feature_set, > + NETIF_F_HW_VLAN_STAG_TX_BIT, > + NETIF_F_HW_VLAN_STAG_RX_BIT); > +EXPORT_SYMBOL_GPL(netif_f_stag_vlan_offload_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_ctag_vlan_feature_set, > + NETIF_F_HW_VLAN_CTAG_TX_BIT, > + NETIF_F_HW_VLAN_CTAG_RX_BIT, > + NETIF_F_HW_VLAN_CTAG_FILTER_BIT); > +EXPORT_SYMBOL_GPL(netif_f_ctag_vlan_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_stag_vlan_feature_set, > + NETIF_F_HW_VLAN_STAG_TX_BIT, > + NETIF_F_HW_VLAN_STAG_RX_BIT, > + NETIF_F_HW_VLAN_STAG_FILTER_BIT); > +EXPORT_SYMBOL_GPL(netif_f_stag_vlan_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_multi_tags_feature_set_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); > +EXPORT_SYMBOL_GPL(netif_f_multi_tags_feature_set_mask); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_gso_encap_feature_set, > + 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_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_xfrm_feature_set, > + NETIF_F_HW_ESP_BIT, > + NETIF_F_HW_ESP_TX_CSUM_BIT, > + NETIF_F_GSO_ESP_BIT); > +EXPORT_SYMBOL_GPL(netif_f_xfrm_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netif_f_tls_feature_set, > + NETIF_F_HW_TLS_TX_BIT, > + NETIF_F_HW_TLS_RX_BIT); > +EXPORT_SYMBOL_GPL(netif_f_tls_feature_set); > + > +DECLARE_NETDEV_FEATURE_SET(netvsc_supported_hw_feature_set, > + NETIF_F_RXCSUM_BIT, > + NETIF_F_IP_CSUM_BIT, > + NETIF_F_TSO_BIT, > + NETIF_F_IPV6_CSUM_BIT, > + NETIF_F_TSO6_BIT, > + NETIF_F_LRO_BIT, > + NETIF_F_SG_BIT, > + NETIF_F_RXHASH_BIT); > +EXPORT_SYMBOL_GPL(netvsc_supported_hw_feature_set); > -- > 2.33.0 Thanks, Olek
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