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- /*
- * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
- * Copyright (C) 2006 Atmark Techno, Inc.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
- #ifndef _ASM_MICROBLAZE_CHECKSUM_H
- #define _ASM_MICROBLAZE_CHECKSUM_H
- /*
- * computes the checksum of the TCP/UDP pseudo-header
- * returns a 16-bit checksum, already complemented
- */
- #define csum_tcpudp_nofold csum_tcpudp_nofold
- static inline __wsum
- csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
- unsigned short proto, __wsum sum)
- {
- __asm__("add %0, %0, %1\n\t"
- "addc %0, %0, %2\n\t"
- "addc %0, %0, %3\n\t"
- "addc %0, %0, r0\n\t"
- : "+&d" (sum)
- : "d" (saddr), "d" (daddr),
- #ifdef __MICROBLAZEEL__
- "d" ((len + proto) << 8)
- #else
- "d" (len + proto)
- #endif
- );
- return sum;
- }
- #include <asm-generic/checksum.h>
- #endif /* _ASM_MICROBLAZE_CHECKSUM_H */
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