| 1 | // SPDX-License-Identifier: GPL-2.0 |
|---|
| 2 | // Copyright (c) 2019 Facebook |
|---|
| 3 | #include <linux/bpf.h> |
|---|
| 4 | #include <bpf/bpf_helpers.h> |
|---|
| 5 | #define ATTR __attribute__((noinline)) |
|---|
| 6 | #include "test_jhash.h" |
|---|
| 7 | |
|---|
| 8 | SEC("tc" ) |
|---|
| 9 | int balancer_ingress(struct __sk_buff *ctx) |
|---|
| 10 | { |
|---|
| 11 | void *data_end = (void *)(long)ctx->data_end; |
|---|
| 12 | void *data = (void *)(long)ctx->data; |
|---|
| 13 | void *ptr; |
|---|
| 14 | int nh_off, i = 0; |
|---|
| 15 | |
|---|
| 16 | nh_off = 14; |
|---|
| 17 | |
|---|
| 18 | /* pragma unroll doesn't work on large loops */ |
|---|
| 19 | |
|---|
| 20 | #define C do { \ |
|---|
| 21 | ptr = data + i; \ |
|---|
| 22 | if (ptr + nh_off > data_end) \ |
|---|
| 23 | break; \ |
|---|
| 24 | ctx->tc_index = jhash(ptr, nh_off, ctx->cb[0] + i++); \ |
|---|
| 25 | } while (0); |
|---|
| 26 | #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; |
|---|
| 27 | C30;C30;C30; /* 90 calls */ |
|---|
| 28 | return 0; |
|---|
| 29 | } |
|---|
| 30 | char _license[] SEC("license" ) = "GPL" ; |
|---|
| 31 | |
|---|
