projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| f11e044b MS |
1 | /* |
| 2 | * Copyright (C) 2008 Michal Simek <monstr@monstr.eu> | |
| 3 | * Copyright (C) 2006 Atmark Techno, Inc. | |
| 4 | * | |
| 5 | * This file is subject to the terms and conditions of the GNU General Public | |
| 6 | * License. See the file "COPYING" in the main directory of this archive | |
| 7 | * for more details. | |
| 8 | */ | |
| 9 | ||
| 10 | #ifndef _ASM_MICROBLAZE_CHECKSUM_H | |
| 11 | #define _ASM_MICROBLAZE_CHECKSUM_H | |
| 12 | ||
| f11e044b MS |
13 | /* |
| 14 | * computes the checksum of the TCP/UDP pseudo-header | |
| 15 | * returns a 16-bit checksum, already complemented | |
| 16 | */ | |
| 14f87389 | 17 | #define csum_tcpudp_nofold csum_tcpudp_nofold |
| f11e044b MS |
18 | static inline __wsum |
| 19 | csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, | |
| 20 | unsigned short proto, __wsum sum) | |
| 21 | { | |
| 22 | __asm__("add %0, %0, %1\n\t" | |
| 23 | "addc %0, %0, %2\n\t" | |
| 24 | "addc %0, %0, %3\n\t" | |
| 25 | "addc %0, %0, r0\n\t" | |
| 26 | : "+&d" (sum) | |
| 02b08045 MS |
27 | : "d" (saddr), "d" (daddr), |
| 28 | #ifdef __MICROBLAZEEL__ | |
| 29 | "d" ((len + proto) << 8) | |
| 30 | #else | |
| 31 | "d" (len + proto) | |
| 32 | #endif | |
| 33 | ); | |
| f11e044b MS |
34 | return sum; |
| 35 | } | |
| 36 | ||
| 14f87389 | 37 | #include <asm-generic/checksum.h> |
| f11e044b MS |
38 | |
| 39 | #endif /* _ASM_MICROBLAZE_CHECKSUM_H */ |