1 /*- 2 * Copyright (c) 2020-2025 The FreeBSD Foundation 3 * 4 * Portions of this software were developed by Björn Zeeb 5 * under sponsorship from the FreeBSD Foundation. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 #ifndef _LINUXKPI_LINUX_NETDEV_FEATURES_H_ 29 #define _LINUXKPI_LINUX_NETDEV_FEATURES_H_ 30 31 #include <linux/types.h> 32 #include <linux/bitops.h> 33 34 typedef uint32_t netdev_features_t; 35 36 #define NETIF_F_HIGHDMA BIT(0) /* Can DMA to high memory. */ 37 #define NETIF_F_SG BIT(1) /* Can do scatter/gather I/O. */ 38 #define NETIF_F_IP_CSUM BIT(2) /* Can csum TCP/UDP on IPv4. */ 39 #define NETIF_F_IPV6_CSUM BIT(3) /* Can csum TCP/UDP on IPv6. */ 40 #define NETIF_F_TSO BIT(4) /* Can do TCP over IPv4 segmentation. */ 41 #define NETIF_F_TSO6 BIT(5) /* Can do TCP over IPv6 segmentation. */ 42 #define NETIF_F_RXCSUM BIT(6) /* Can do receive csum offload. */ 43 #define NETIF_F_HW_CSUM BIT(7) /* Can csum packets (which?). */ 44 #define NETIF_F_HW_TC BIT(8) /* Can offload TC. */ 45 46 #define NETIF_F_CSUM_MASK (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM) 47 48 #define NETIF_F_BITS \ 49 "\20\1HIGHDMA\2SG\3IP_CSUM\4IPV6_CSUM\5TSO\6TSO6\7RXCSUM" \ 50 "\10HW_CSUM\11HW_TC" 51 52 #endif /* _LINUXKPI_LINUX_NETDEV_FEATURES_H_ */ 53