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// SPDX-License-Identifier: GPL-2.0
#ifndef __NETCNT_COMMON_H
#define __NETCNT_COMMON_H
#include <linux/types.h>
#define MAX_PERCPU_PACKETS 32
/* sizeof(struct bpf_local_storage_elem):
*
* It really is about 128 bytes on x86_64, but allocate more to account for
* possible layout changes, different architectures, etc.
* The kernel will wrap up to PAGE_SIZE internally anyway.
*/
#define SIZEOF_BPF_LOCAL_STORAGE_ELEM 256
/* Try to estimate kernel's BPF_LOCAL_STORAGE_MAX_VALUE_SIZE: */
#define BPF_LOCAL_STORAGE_MAX_VALUE_SIZE (0xFFFF - \
SIZEOF_BPF_LOCAL_STORAGE_ELEM)
#define PCPU_MIN_UNIT_SIZE 32768
union percpu_net_cnt {
struct {
__u64 packets;
__u64 bytes;
__u64 prev_ts;
__u64 prev_packets;
__u64 prev_bytes;
};
__u8 data[PCPU_MIN_UNIT_SIZE];
};
union net_cnt {
struct {
__u64 packets;
__u64 bytes;
};
__u8 data[BPF_LOCAL_STORAGE_MAX_VALUE_SIZE];
};
#endif
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