| /* | |
| * Network device features. | |
| * | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU General Public License | |
| * as published by the Free Software Foundation; either version | |
| * 2 of the License, or (at your option) any later version. | |
| */ | |
| #ifndef _LINUX_NETDEV_FEATURES_H | |
| #define _LINUX_NETDEV_FEATURES_H | |
| #include <linux/types.h> | |
| #include <linux/bitops.h> | |
| #include <asm/byteorder.h> | |
| typedef u64 netdev_features_t; | |
| enum { | |
| NETIF_F_SG_BIT, /* Scatter/gather IO. */ | |
| NETIF_F_IP_CSUM_BIT, /* Can checksum TCP/UDP over IPv4. */ | |
| __UNUSED_NETIF_F_1, | |
| NETIF_F_HW_CSUM_BIT, /* Can checksum all the packets. */ | |
| NETIF_F_IPV6_CSUM_BIT, /* Can checksum TCP/UDP over IPV6 */ | |
| NETIF_F_HIGHDMA_BIT, /* Can DMA to high memory. */ | |
| NETIF_F_FRAGLIST_BIT, /* Scatter/gather IO. */ | |
| NETIF_F_HW_VLAN_CTAG_TX_BIT, /* Transmit VLAN CTAG HW acceleration */ | |
| NETIF_F_HW_VLAN_CTAG_RX_BIT, /* Receive VLAN CTAG HW acceleration */ | |
| NETIF_F_HW_VLAN_CTAG_FILTER_BIT,/* Receive filtering on VLAN CTAGs */ | |
| NETIF_F_VLAN_CHALLENGED_BIT, /* Device cannot handle VLAN packets */ | |
| NETIF_F_GSO_BIT, /* Enable software GSO. */ | |
| NETIF_F_LLTX_BIT, /* LockLess TX - deprecated. Please */ | |
| /* do not use LLTX in new drivers */ | |
| NETIF_F_NETNS_LOCAL_BIT, /* Does not change network namespaces */ | |
| NETIF_F_GRO_BIT, /* Generic receive offload */ | |
| NETIF_F_LRO_BIT, /* large receive offload */ | |
| /**/NETIF_F_GSO_SHIFT, /* keep the order of SKB_GSO_* bits */ | |
| NETIF_F_TSO_BIT /* ... TCPv4 segmentation */ | |
| = NETIF_F_GSO_SHIFT, | |
| NETIF_F_GSO_ROBUST_BIT, /* ... ->SKB_GSO_DODGY */ | |
| NETIF_F_TSO_ECN_BIT, /* ... TCP ECN support */ | |
| NETIF_F_TSO_MANGLEID_BIT, /* ... IPV4 ID mangling allowed */ | |
| NETIF_F_TSO6_BIT, /* ... TCPv6 segmentation */ | |
| NETIF_F_FSO_BIT, /* ... FCoE segmentation */ | |
| NETIF_F_GSO_GRE_BIT, /* ... GRE with TSO */ | |
| NETIF_F_GSO_GRE_CSUM_BIT, /* ... GRE with csum with TSO */ | |
| NETIF_F_GSO_IPXIP4_BIT, /* ... IP4 or IP6 over IP4 with TSO */ | |
| NETIF_F_GSO_IPXIP6_BIT, /* ... IP4 or IP6 over IP6 with TSO */ | |
| NETIF_F_GSO_UDP_TUNNEL_BIT, /* ... UDP TUNNEL with TSO */ | |
| NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,/* ... UDP TUNNEL with TSO & CSUM */ | |
| NETIF_F_GSO_PARTIAL_BIT, /* ... Only segment inner-most L4 | |
| * in hardware and all other | |
| * headers in software. | |
| */ | |
| NETIF_F_GSO_TUNNEL_REMCSUM_BIT, /* ... TUNNEL with TSO & REMCSUM */ | |
| NETIF_F_GSO_SCTP_BIT, /* ... SCTP fragmentation */ | |
| NETIF_F_GSO_ESP_BIT, /* ... ESP with TSO */ | |
| NETIF_F_GSO_UDP_BIT, /* ... UFO, deprecated except tuntap */ | |
| NETIF_F_GSO_UDP_L4_BIT, /* ... UDP payload GSO (not UFO) */ | |
| /**/NETIF_F_GSO_LAST = /* last bit, see GSO_MASK */ | |
| NETIF_F_GSO_UDP_L4_BIT, | |
| NETIF_F_FCOE_CRC_BIT, /* FCoE CRC32 */ | |
| NETIF_F_SCTP_CRC_BIT, /* SCTP checksum offload */ | |
| NETIF_F_FCOE_MTU_BIT, /* Supports max FCoE MTU, 2158 bytes*/ | |
| NETIF_F_NTUPLE_BIT, /* N-tuple filters supported */ | |
| NETIF_F_RXHASH_BIT, /* Receive hashing offload */ | |
| NETIF_F_RXCSUM_BIT, /* Receive checksumming offload */ | |
| NETIF_F_NOCACHE_COPY_BIT, /* Use no-cache copyfromuser */ | |
| NETIF_F_LOOPBACK_BIT, /* Enable loopback */ | |
| NETIF_F_RXFCS_BIT, /* Append FCS to skb pkt data */ | |
| NETIF_F_RXALL_BIT, /* Receive errored frames too */ | |
| NETIF_F_HW_VLAN_STAG_TX_BIT, /* Transmit VLAN STAG HW acceleration */ | |
| NETIF_F_HW_VLAN_STAG_RX_BIT, /* Receive VLAN STAG HW acceleration */ | |
| NETIF_F_HW_VLAN_STAG_FILTER_BIT,/* Receive filtering on VLAN STAGs */ | |
| NETIF_F_HW_L2FW_DOFFLOAD_BIT, /* Allow L2 Forwarding in Hardware */ | |
| NETIF_F_HW_TC_BIT, /* Offload TC infrastructure */ | |
| NETIF_F_HW_ESP_BIT, /* Hardware ESP transformation offload */ | |
| NETIF_F_HW_ESP_TX_CSUM_BIT, /* ESP with TX checksum offload */ | |
| NETIF_F_RX_UDP_TUNNEL_PORT_BIT, /* Offload of RX port for UDP tunnels */ | |
| NETIF_F_HW_TLS_TX_BIT, /* Hardware TLS TX offload */ | |
| NETIF_F_HW_TLS_RX_BIT, /* Hardware TLS RX offload */ | |
| NETIF_F_GRO_HW_BIT, /* Hardware Generic receive offload */ | |
| NETIF_F_HW_TLS_RECORD_BIT, /* Offload TLS record */ | |
| /* | |
| * Add your fresh new feature above and remember to update | |
| * netdev_features_strings[] in net/core/ethtool.c and maybe | |
| * some feature mask #defines below. Please also describe it | |
| * in Documentation/networking/netdev-features.txt. | |
| */ | |
| /**/NETDEV_FEATURE_COUNT | |
| }; | |
| /* 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) | |
| #define NETIF_F_FCOE_CRC __NETIF_F(FCOE_CRC) | |
| #define NETIF_F_FCOE_MTU __NETIF_F(FCOE_MTU) | |
| #define NETIF_F_FRAGLIST __NETIF_F(FRAGLIST) | |
| #define NETIF_F_FSO __NETIF_F(FSO) | |
| #define NETIF_F_GRO __NETIF_F(GRO) | |
| #define NETIF_F_GRO_HW __NETIF_F(GRO_HW) | |
| #define NETIF_F_GSO __NETIF_F(GSO) | |
| #define NETIF_F_GSO_ROBUST __NETIF_F(GSO_ROBUST) | |
| #define NETIF_F_HIGHDMA __NETIF_F(HIGHDMA) | |
| #define NETIF_F_HW_CSUM __NETIF_F(HW_CSUM) | |
| #define NETIF_F_HW_VLAN_CTAG_FILTER __NETIF_F(HW_VLAN_CTAG_FILTER) | |
| #define NETIF_F_HW_VLAN_CTAG_RX __NETIF_F(HW_VLAN_CTAG_RX) | |
| #define NETIF_F_HW_VLAN_CTAG_TX __NETIF_F(HW_VLAN_CTAG_TX) | |
| #define NETIF_F_IP_CSUM __NETIF_F(IP_CSUM) | |
| #define NETIF_F_IPV6_CSUM __NETIF_F(IPV6_CSUM) | |
| #define NETIF_F_LLTX __NETIF_F(LLTX) | |
| #define NETIF_F_LOOPBACK __NETIF_F(LOOPBACK) | |
| #define NETIF_F_LRO __NETIF_F(LRO) | |
| #define NETIF_F_NETNS_LOCAL __NETIF_F(NETNS_LOCAL) | |
| #define NETIF_F_NOCACHE_COPY __NETIF_F(NOCACHE_COPY) | |
| #define NETIF_F_NTUPLE __NETIF_F(NTUPLE) | |
| #define NETIF_F_RXCSUM __NETIF_F(RXCSUM) | |
| #define NETIF_F_RXHASH __NETIF_F(RXHASH) | |
| #define NETIF_F_SCTP_CRC __NETIF_F(SCTP_CRC) | |
| #define NETIF_F_SG __NETIF_F(SG) | |
| #define NETIF_F_TSO6 __NETIF_F(TSO6) | |
| #define NETIF_F_TSO_ECN __NETIF_F(TSO_ECN) | |
| #define NETIF_F_TSO __NETIF_F(TSO) | |
| #define NETIF_F_VLAN_CHALLENGED __NETIF_F(VLAN_CHALLENGED) | |
| #define NETIF_F_RXFCS __NETIF_F(RXFCS) | |
| #define NETIF_F_RXALL __NETIF_F(RXALL) | |
| #define NETIF_F_GSO_GRE __NETIF_F(GSO_GRE) | |
| #define NETIF_F_GSO_GRE_CSUM __NETIF_F(GSO_GRE_CSUM) | |
| #define NETIF_F_GSO_IPXIP4 __NETIF_F(GSO_IPXIP4) | |
| #define NETIF_F_GSO_IPXIP6 __NETIF_F(GSO_IPXIP6) | |
| #define NETIF_F_GSO_UDP_TUNNEL __NETIF_F(GSO_UDP_TUNNEL) | |
| #define NETIF_F_GSO_UDP_TUNNEL_CSUM __NETIF_F(GSO_UDP_TUNNEL_CSUM) | |
| #define NETIF_F_TSO_MANGLEID __NETIF_F(TSO_MANGLEID) | |
| #define NETIF_F_GSO_PARTIAL __NETIF_F(GSO_PARTIAL) | |
| #define NETIF_F_GSO_TUNNEL_REMCSUM __NETIF_F(GSO_TUNNEL_REMCSUM) | |
| #define NETIF_F_GSO_SCTP __NETIF_F(GSO_SCTP) | |
| #define NETIF_F_GSO_ESP __NETIF_F(GSO_ESP) | |
| #define NETIF_F_GSO_UDP __NETIF_F(GSO_UDP) | |
| #define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER) | |
| #define NETIF_F_HW_VLAN_STAG_RX __NETIF_F(HW_VLAN_STAG_RX) | |
| #define NETIF_F_HW_VLAN_STAG_TX __NETIF_F(HW_VLAN_STAG_TX) | |
| #define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD) | |
| #define NETIF_F_HW_TC __NETIF_F(HW_TC) | |
| #define NETIF_F_HW_ESP __NETIF_F(HW_ESP) | |
| #define NETIF_F_HW_ESP_TX_CSUM __NETIF_F(HW_ESP_TX_CSUM) | |
| #define NETIF_F_RX_UDP_TUNNEL_PORT __NETIF_F(RX_UDP_TUNNEL_PORT) | |
| #define NETIF_F_HW_TLS_RECORD __NETIF_F(HW_TLS_RECORD) | |
| #define NETIF_F_GSO_UDP_L4 __NETIF_F(GSO_UDP_L4) | |
| #define NETIF_F_HW_TLS_TX __NETIF_F(HW_TLS_TX) | |
| #define NETIF_F_HW_TLS_RX __NETIF_F(HW_TLS_RX) | |
| /* Finds the next feature with the highest number of the range of start till 0. | |
| */ | |
| static inline int find_next_netdev_feature(u64 feature, unsigned long start) | |
| { | |
| /* like BITMAP_LAST_WORD_MASK() for u64 | |
| * this sets the most significant 64 - start to 0. | |
| */ | |
| feature &= ~0ULL >> (-start & ((sizeof(feature) * 8) - 1)); | |
| return fls64(feature) - 1; | |
| } | |
| /* This goes for the MSB to the LSB through the set feature bits, | |
| * mask_addr should be a u64 and bit an int | |
| */ | |
| #define for_each_netdev_feature(mask_addr, bit) \ | |
| for ((bit) = find_next_netdev_feature((mask_addr), \ | |
| NETDEV_FEATURE_COUNT); \ | |
| (bit) >= 0; \ | |
| (bit) = find_next_netdev_feature((mask_addr), (bit) - 1)) | |
| /* 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) | |
| /* 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) | |
| /* Segmentation offload feature mask */ | |
| #define NETIF_F_GSO_MASK (__NETIF_F_BIT(NETIF_F_GSO_LAST + 1) - \ | |
| __NETIF_F_BIT(NETIF_F_GSO_SHIFT)) | |
| /* 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_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | \ | |
| NETIF_F_TSO_ECN | NETIF_F_TSO_MANGLEID) | |
| #define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \ | |
| NETIF_F_FSO) | |
| /* List of features with software fallbacks. */ | |
| #define NETIF_F_GSO_SOFTWARE (NETIF_F_ALL_TSO | \ | |
| NETIF_F_GSO_SCTP) | |
| /* | |
| * 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) | |
| /* | |
| * 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) | |
| /* | |
| * 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 | |
| /* changeable features with no special hardware requirements */ | |
| #define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO) | |
| #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) | |
| #endif /* _LINUX_NETDEV_FEATURES_H */ |