diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 1997-06-01 03:16:17 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 1997-06-01 03:16:17 +0000 |
| commit | d8d9b8f76f22b7a16a83e261e64f89ee611f49df (patch) | |
| tree | 3067bc130b80d52808e6390c9fc7fc087ec1e33c /include/asm-sparc64/checksum.h | |
| parent | 19c9bba94152148523ba0f7ef7cffe3d45656b11 (diff) | |
Initial revision
Diffstat (limited to 'include/asm-sparc64/checksum.h')
| -rw-r--r-- | include/asm-sparc64/checksum.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/asm-sparc64/checksum.h b/include/asm-sparc64/checksum.h index 543e5a627..63dbfec3d 100644 --- a/include/asm-sparc64/checksum.h +++ b/include/asm-sparc64/checksum.h @@ -1,4 +1,4 @@ -/* $Id: checksum.h,v 1.6 1997/04/10 23:32:43 davem Exp $ */ +/* $Id: checksum.h,v 1.7 1997/05/14 07:02:44 davem Exp $ */ #ifndef __SPARC64_CHECKSUM_H #define __SPARC64_CHECKSUM_H @@ -54,6 +54,7 @@ csum_partial_copy_nocheck (const char *src, char *dst, int len, __asm__ __volatile__ (" call __csum_partial_copy_sparc_generic mov %4, %%g7 + srl %%o0, 0, %%o0 " : "=r" (ret) : "0" (ret), "r" (d), "r" (l), "r" (sum) : "o1", "o2", "o3", "o4", "o5", "o7", "g1", "g2", "g3", "g5", "g7"); return (unsigned int)ret; @@ -81,6 +82,7 @@ csum_partial_copy_from_user(const char *src, char *dst, int len, 1: call __csum_partial_copy_sparc_generic stx %5, [%%sp + 0x7ff + 128] + srl %%o0, 0, %%o0 " : "=r" (ret) : "0" (ret), "r" (d), "r" (l), "r" (s), "r" (err) : "o1", "o2", "o3", "o4", "o5", "o7", "g1", "g2", "g3", "g5", "g7"); return (unsigned int)ret; @@ -108,6 +110,7 @@ csum_partial_copy_to_user(const char *src, char *dst, int len, 1: call __csum_partial_copy_sparc_generic stx %5, [%%sp + 0x7ff + 128] + srl %%o0, 0, %%o0 " : "=r" (ret) : "0" (ret), "r" (d), "r" (l), "r" (s), "r" (err) : "o1", "o2", "o3", "o4", "o5", "o7", "g1", "g2", "g3", "g5", "g7"); return (unsigned int)ret; @@ -151,6 +154,7 @@ extern __inline__ unsigned short ip_fast_csum(__const__ unsigned char *iph, srl %%g2, 16, %0 addc %0, %%g0, %0 xnor %%g0, %0, %0 + srl %0, 0, %0 " : "=r" (sum), "=&r" (iph) : "r" (ihl), "1" (iph) : "g2", "g3", "g7", "cc"); @@ -179,11 +183,11 @@ extern __inline__ unsigned short csum_tcpudp_magic(unsigned long saddr, " : "=r" (sum), "=r" (saddr) : "r" (daddr), "r" ((proto<<16)+len), "0" (sum), "1" (saddr) : "cc"); - return sum; + return (sum & 0xffff); } /* Fold a partial checksum without adding pseudo headers. */ -extern __inline__ unsigned int csum_fold(unsigned int sum) +extern __inline__ unsigned short csum_fold(unsigned int sum) { unsigned int tmp; @@ -195,7 +199,7 @@ extern __inline__ unsigned int csum_fold(unsigned int sum) " : "=&r" (sum), "=r" (tmp) : "0" (sum), "1" (sum<<16) : "cc"); - return sum; + return (sum & 0xffff); } #define _HAVE_ARCH_IPV6_CSUM |