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| 1 | +/* SPDX-License-Identifier: GPL-2.0-only */ |
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| 1 | 2 | /* |
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| 2 | 3 | * Copyright (c) 2014 Nicira, Inc. |
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| 3 | | - * |
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| 4 | | - * This program is free software; you can redistribute it and/or |
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| 5 | | - * modify it under the terms of version 2 of the GNU General Public |
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| 6 | | - * License as published by the Free Software Foundation. |
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| 7 | | - * |
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| 8 | | - * This program is distributed in the hope that it will be useful, but |
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| 9 | | - * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 11 | | - * General Public License for more details. |
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| 12 | 4 | */ |
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| 13 | 5 | |
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| 14 | 6 | #ifndef _NET_MPLS_H |
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| .. | .. |
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| 16 | 8 | |
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| 17 | 9 | #include <linux/if_ether.h> |
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| 18 | 10 | #include <linux/netdevice.h> |
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| 11 | +#include <linux/mpls.h> |
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| 19 | 12 | |
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| 20 | 13 | #define MPLS_HLEN 4 |
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| 21 | 14 | |
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| .. | .. |
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| 33 | 26 | { |
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| 34 | 27 | return (struct mpls_shim_hdr *)skb_network_header(skb); |
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| 35 | 28 | } |
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| 29 | + |
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| 30 | +static inline struct mpls_shim_hdr mpls_entry_encode(u32 label, |
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| 31 | + unsigned int ttl, |
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| 32 | + unsigned int tc, |
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| 33 | + bool bos) |
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| 34 | +{ |
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| 35 | + struct mpls_shim_hdr result; |
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| 36 | + |
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| 37 | + result.label_stack_entry = |
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| 38 | + cpu_to_be32((label << MPLS_LS_LABEL_SHIFT) | |
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| 39 | + (tc << MPLS_LS_TC_SHIFT) | |
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| 40 | + (bos ? (1 << MPLS_LS_S_SHIFT) : 0) | |
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| 41 | + (ttl << MPLS_LS_TTL_SHIFT)); |
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| 42 | + return result; |
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| 43 | +} |
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| 44 | + |
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| 36 | 45 | #endif |
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