| /* SPDX-License-Identifier: GPL-2.0 */ | |
| /* | |
| * Copyright (C) 2008 Michal Simek <monstr@monstr.eu> | |
| * Copyright (C) 2006 Atmark Techno, Inc. | |
| */ | |
| #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, __u32 len, | |
| __u8 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 */ |