xref: /openbmc/qemu/ebpf/ebpf_rss.h (revision 46627f41)
1 /*
2  * eBPF RSS header
3  *
4  * Developed by Daynix Computing LTD (http://www.daynix.com)
5  *
6  * Authors:
7  *  Andrew Melnychenko <andrew@daynix.com>
8  *  Yuri Benditovich <yuri.benditovich@daynix.com>
9  *
10  * This work is licensed under the terms of the GNU GPL, version 2.  See
11  * the COPYING file in the top-level directory.
12  */
13 
14 #ifndef QEMU_EBPF_RSS_H
15 #define QEMU_EBPF_RSS_H
16 
17 struct EBPFRSSContext {
18     void *obj;
19     int program_fd;
20     int map_configuration;
21     int map_toeplitz_key;
22     int map_indirections_table;
23 };
24 
25 struct EBPFRSSConfig {
26     uint8_t redirect;
27     uint8_t populate_hash;
28     uint32_t hash_types;
29     uint16_t indirections_len;
30     uint16_t default_queue;
31 } __attribute__((packed));
32 
33 void ebpf_rss_init(struct EBPFRSSContext *ctx);
34 
35 bool ebpf_rss_is_loaded(struct EBPFRSSContext *ctx);
36 
37 bool ebpf_rss_load(struct EBPFRSSContext *ctx);
38 
39 bool ebpf_rss_set_all(struct EBPFRSSContext *ctx, struct EBPFRSSConfig *config,
40                       uint16_t *indirections_table, uint8_t *toeplitz_key);
41 
42 void ebpf_rss_unload(struct EBPFRSSContext *ctx);
43 
44 #endif /* QEMU_EBPF_RSS_H */
45