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| /* 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 */
|
|
