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Diffstat (limited to 'include/asm-mn10300/checksum.h')
| -rw-r--r-- | include/asm-mn10300/checksum.h | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/include/asm-mn10300/checksum.h b/include/asm-mn10300/checksum.h deleted file mode 100644 index 9fb2a8d8826a..000000000000 --- a/include/asm-mn10300/checksum.h +++ /dev/null | |||
| @@ -1,86 +0,0 @@ | |||
| 1 | /* MN10300 Optimised checksumming code | ||
| 2 | * | ||
| 3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | ||
| 4 | * Written by David Howells (dhowells@redhat.com) | ||
| 5 | * | ||
| 6 | * This program is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU General Public Licence | ||
| 8 | * as published by the Free Software Foundation; either version | ||
| 9 | * 2 of the Licence, or (at your option) any later version. | ||
| 10 | */ | ||
| 11 | #ifndef _ASM_CHECKSUM_H | ||
| 12 | #define _ASM_CHECKSUM_H | ||
| 13 | |||
| 14 | extern __wsum csum_partial(const void *buff, int len, __wsum sum); | ||
| 15 | extern __wsum csum_partial_copy_nocheck(const void *src, void *dst, | ||
| 16 | int len, __wsum sum); | ||
| 17 | extern __wsum csum_partial_copy_from_user(const void *src, void *dst, | ||
| 18 | int len, __wsum sum, | ||
| 19 | int *err_ptr); | ||
| 20 | extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl); | ||
| 21 | extern __wsum csum_partial(const void *buff, int len, __wsum sum); | ||
| 22 | extern __sum16 ip_compute_csum(const void *buff, int len); | ||
| 23 | |||
| 24 | #define csum_partial_copy_fromuser csum_partial_copy | ||
| 25 | extern __wsum csum_partial_copy(const void *src, void *dst, int len, | ||
| 26 | __wsum sum); | ||
| 27 | |||
| 28 | static inline __sum16 csum_fold(__wsum sum) | ||
| 29 | { | ||
| 30 | asm( | ||
| 31 | " add %1,%0 \n" | ||
| 32 | " addc 0xffff,%0 \n" | ||
| 33 | : "=r" (sum) | ||
| 34 | : "r" (sum << 16), "0" (sum & 0xffff0000) | ||
| 35 | : "cc" | ||
| 36 | ); | ||
| 37 | return (~sum) >> 16; | ||
| 38 | } | ||
| 39 | |||
| 40 | static inline __wsum csum_tcpudp_nofold(unsigned long saddr, | ||
| 41 | unsigned long daddr, | ||
| 42 | unsigned short len, | ||
| 43 | unsigned short proto, | ||
| 44 | __wsum sum) | ||
| 45 | { | ||
| 46 | __wsum tmp; | ||
| 47 | |||
| 48 | tmp = (__wsum) ntohs(len) << 16; | ||
| 49 | tmp += (__wsum) proto << 8; | ||
| 50 | |||
| 51 | asm( | ||
| 52 | " add %1,%0 \n" | ||
| 53 | " addc %2,%0 \n" | ||
| 54 | " addc %3,%0 \n" | ||
| 55 | " addc 0,%0 \n" | ||
| 56 | : "=r" (sum) | ||
| 57 | : "r" (daddr), "r"(saddr), "r"(tmp), "0"(sum) | ||
| 58 | : "cc" | ||
| 59 | ); | ||
| 60 | return sum; | ||
| 61 | } | ||
| 62 | |||
| 63 | /* | ||
| 64 | * computes the checksum of the TCP/UDP pseudo-header | ||
| 65 | * returns a 16-bit checksum, already complemented | ||
| 66 | */ | ||
| 67 | static inline __sum16 csum_tcpudp_magic(unsigned long saddr, | ||
| 68 | unsigned long daddr, | ||
| 69 | unsigned short len, | ||
| 70 | unsigned short proto, | ||
| 71 | __wsum sum) | ||
| 72 | { | ||
| 73 | return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum)); | ||
| 74 | } | ||
| 75 | |||
| 76 | #undef _HAVE_ARCH_IPV6_CSUM | ||
| 77 | |||
| 78 | /* | ||
| 79 | * Copy and checksum to user | ||
| 80 | */ | ||
| 81 | #define HAVE_CSUM_COPY_USER | ||
| 82 | extern __wsum csum_and_copy_to_user(const void *src, void *dst, int len, | ||
| 83 | __wsum sum, int *err_ptr); | ||
| 84 | |||
| 85 | |||
| 86 | #endif /* _ASM_CHECKSUM_H */ | ||