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-rw-r--r--sys/dev/sbni/if_sbni.c87
1 files changed, 0 insertions, 87 deletions
diff --git a/sys/dev/sbni/if_sbni.c b/sys/dev/sbni/if_sbni.c
index 19c6a04..8c8687c 100644
--- a/sys/dev/sbni/if_sbni.c
+++ b/sys/dev/sbni/if_sbni.c
@@ -87,8 +87,6 @@ __FBSDID("$FreeBSD$");
#include <dev/sbni/if_sbnireg.h>
#include <dev/sbni/if_sbnivar.h>
-#define ASM_CRC 1
-
static void sbni_init(void *);
static void sbni_init_locked(struct sbni_softc *);
static void sbni_start(struct ifnet *);
@@ -1202,88 +1200,6 @@ sbni_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
/* -------------------------------------------------------------------------- */
-#ifdef ASM_CRC
-
-static u_int32_t
-calc_crc32(u_int32_t crc, caddr_t p, u_int len)
-{
- register u_int32_t _crc __asm ("ax");
- _crc = crc;
-
- __asm __volatile (
- "xorl %%ebx, %%ebx\n"
- "movl %1, %%esi\n"
- "movl %2, %%ecx\n"
- "movl $crc32tab, %%edi\n"
- "shrl $2, %%ecx\n"
- "jz 1f\n"
-
- ".align 4\n"
- "0:\n"
- "movb %%al, %%bl\n"
- "movl (%%esi), %%edx\n"
- "shrl $8, %%eax\n"
- "xorb %%dl, %%bl\n"
- "shrl $8, %%edx\n"
- "xorl (%%edi,%%ebx,4), %%eax\n"
-
- "movb %%al, %%bl\n"
- "shrl $8, %%eax\n"
- "xorb %%dl, %%bl\n"
- "shrl $8, %%edx\n"
- "xorl (%%edi,%%ebx,4), %%eax\n"
-
- "movb %%al, %%bl\n"
- "shrl $8, %%eax\n"
- "xorb %%dl, %%bl\n"
- "movb %%dh, %%dl\n"
- "xorl (%%edi,%%ebx,4), %%eax\n"
-
- "movb %%al, %%bl\n"
- "shrl $8, %%eax\n"
- "xorb %%dl, %%bl\n"
- "addl $4, %%esi\n"
- "xorl (%%edi,%%ebx,4), %%eax\n"
-
- "decl %%ecx\n"
- "jnz 0b\n"
-
- "1:\n"
- "movl %2, %%ecx\n"
- "andl $3, %%ecx\n"
- "jz 2f\n"
-
- "movb %%al, %%bl\n"
- "shrl $8, %%eax\n"
- "xorb (%%esi), %%bl\n"
- "xorl (%%edi,%%ebx,4), %%eax\n"
-
- "decl %%ecx\n"
- "jz 2f\n"
-
- "movb %%al, %%bl\n"
- "shrl $8, %%eax\n"
- "xorb 1(%%esi), %%bl\n"
- "xorl (%%edi,%%ebx,4), %%eax\n"
-
- "decl %%ecx\n"
- "jz 2f\n"
-
- "movb %%al, %%bl\n"
- "shrl $8, %%eax\n"
- "xorb 2(%%esi), %%bl\n"
- "xorl (%%edi,%%ebx,4), %%eax\n"
- "2:\n"
- : "=a" (_crc)
- : "g" (p), "g" (len)
- : "bx", "cx", "dx", "si", "di"
- );
-
- return (_crc);
-}
-
-#else /* ASM_CRC */
-
static u_int32_t
calc_crc32(u_int32_t crc, caddr_t p, u_int len)
{
@@ -1293,9 +1209,6 @@ calc_crc32(u_int32_t crc, caddr_t p, u_int len)
return (crc);
}
-#endif /* ASM_CRC */
-
-
static u_int32_t crc32tab[] __aligned(8) = {
0xD202EF8D, 0xA505DF1B, 0x3C0C8EA1, 0x4B0BBE37,
0xD56F2B94, 0xA2681B02, 0x3B614AB8, 0x4C667A2E,
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