31 lines
		
	
	
		
			751 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			31 lines
		
	
	
		
			751 B
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0
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| // Copyright (c) 2019 Facebook
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| #include <linux/bpf.h>
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| #include <bpf/bpf_helpers.h>
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| #define ATTR __attribute__((noinline))
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| #include "test_jhash.h"
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| 
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| SEC("scale90_noinline")
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| int balancer_ingress(struct __sk_buff *ctx)
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| {
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| 	void *data_end = (void *)(long)ctx->data_end;
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| 	void *data = (void *)(long)ctx->data;
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| 	void *ptr;
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| 	int ret = 0, nh_off, i = 0;
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| 
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| 	nh_off = 14;
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| 
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| 	/* pragma unroll doesn't work on large loops */
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| 
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| #define C do { \
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| 	ptr = data + i; \
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| 	if (ptr + nh_off > data_end) \
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| 		break; \
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| 	ctx->tc_index = jhash(ptr, nh_off, ctx->cb[0] + i++); \
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| 	} while (0);
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| #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;
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| 	C30;C30;C30; /* 90 calls */
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| 	return 0;
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| }
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| char _license[] SEC("license") = "GPL";
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