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bf1e748dfd
Start to sort through the netdevice features to match them with FreeBSD. Annotate them a bit more verbose though the names are pretty telling already. While here adjust style(9) as well. Lastly add the bit definitions for use with printf(9) %b as names read easier than bitmasks. We will use that in LinuxKPI 802.11. No functional changes. Sponsored by: The FreeBSD Foundation (cherry picked from commit 4b6b9c1368b346f7093153d14e7931403ac3202d)
52 lines
2.4 KiB
C
52 lines
2.4 KiB
C
/*-
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* Copyright (c) 2020-2025 The FreeBSD Foundation
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*
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* Portions of this software were developed by Björn Zeeb
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* under sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LINUXKPI_LINUX_NETDEV_FEATURES_H_
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#define _LINUXKPI_LINUX_NETDEV_FEATURES_H_
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#include <linux/types.h>
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#include <linux/bitops.h>
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typedef uint32_t netdev_features_t;
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#define NETIF_F_HIGHDMA BIT(0) /* Can DMA to high memory. */
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#define NETIF_F_SG BIT(1) /* Can do scatter/gather I/O. */
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#define NETIF_F_IP_CSUM BIT(2) /* Can csum TCP/UDP on IPv4. */
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#define NETIF_F_IPV6_CSUM BIT(3) /* Can csum TCP/UDP on IPv6. */
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#define NETIF_F_TSO BIT(4) /* Can do TCP over IPv4 segmentation. */
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#define NETIF_F_TSO6 BIT(5) /* Can do TCP over IPv6 segmentation. */
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#define NETIF_F_RXCSUM BIT(6) /* Can do receive csum offload. */
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#define NETIF_F_HW_CSUM BIT(7) /* Can csum packets (which?). */
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#define NETIF_F_HW_TC BIT(8) /* Can offload TC. */
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#define NETIF_F_CSUM_MASK (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)
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#define NETIF_F_BITS \
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"\20\1HIGHDMA\2SG\3IP_CSUM\4IPV6_CSUM\5TSO\6TSO6\7RXCSUM" \
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"\10HW_CSUM\11HW_TC"
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#endif /* _LINUXKPI_LINUX_NETDEV_FEATURES_H_ */
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