31 lines
725 B
C
31 lines
725 B
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
// Copyright (c) 2019 Facebook
|
||
|
|
#include "vmlinux.h"
|
||
|
|
#include <bpf/bpf_helpers.h>
|
||
|
|
#define ATTR __always_inline
|
||
|
|
#include "test_jhash.h"
|
||
|
|
|
||
|
|
SEC("tc")
|
||
|
|
int balancer_ingress(struct __sk_buff *ctx)
|
||
|
|
{
|
||
|
|
void *data_end = (void *)(long)ctx->data_end;
|
||
|
|
void *data = (void *)(long)ctx->data;
|
||
|
|
void *ptr;
|
||
|
|
int ret = 0, nh_off, i = 0;
|
||
|
|
|
||
|
|
nh_off = 14;
|
||
|
|
|
||
|
|
/* pragma unroll doesn't work on large loops */
|
||
|
|
|
||
|
|
#define C do { \
|
||
|
|
ptr = data + i; \
|
||
|
|
if (ptr + nh_off > data_end) \
|
||
|
|
break; \
|
||
|
|
ctx->tc_index = jhash(ptr, nh_off, ctx->cb[0] + i++); \
|
||
|
|
} while (0);
|
||
|
|
#define C30 C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;
|
||
|
|
C30;C30;C30; /* 90 calls */
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
char _license[] SEC("license") = "GPL";
|