1 /*
2 * QEMU rocker switch emulation
3 *
4 * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
5 * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
6 * Copyright (c) 2014 Neil Horman <nhorman@tuxdriver.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19 #ifndef ROCKER_H
20 #define ROCKER_H
21
22 #include "qemu/sockets.h"
23 #include "qom/object.h"
24
25 #if defined(DEBUG_ROCKER)
26 # define DPRINTF(fmt, ...) \
27 do { \
28 g_autoptr(GDateTime) now = g_date_time_new_now_local(); \
29 g_autofree char *nowstr = g_date_time_format(now, "%T.%f");\
30 fprintf(stderr, "%s ROCKER: " fmt, nowstr, ## __VA_ARGS__);\
31 } while (0)
32 #else
DPRINTF(const char * fmt,...)33 static inline G_GNUC_PRINTF(1, 2) int DPRINTF(const char *fmt, ...)
34 {
35 return 0;
36 }
37 #endif
38
ipv4_addr_is_multicast(uint32_t addr)39 static inline bool ipv4_addr_is_multicast(uint32_t addr)
40 {
41 return (addr & htonl(0xf0000000)) == htonl(0xe0000000);
42 }
43
44 typedef struct ipv6_addr {
45 union {
46 uint8_t addr8[16];
47 uint16_t addr16[8];
48 uint32_t addr32[4];
49 };
50 } Ipv6Addr;
51
ipv6_addr_is_multicast(const Ipv6Addr * addr)52 static inline bool ipv6_addr_is_multicast(const Ipv6Addr *addr)
53 {
54 return (addr->addr32[0] & htonl(0xFF000000)) == htonl(0xFF000000);
55 }
56
57 typedef struct world World;
58 typedef struct desc_info DescInfo;
59 typedef struct desc_ring DescRing;
60
61 #define TYPE_ROCKER "rocker"
62 typedef struct rocker Rocker;
63 DECLARE_INSTANCE_CHECKER(Rocker, ROCKER,
64 TYPE_ROCKER)
65
66 Rocker *rocker_find(const char *name);
67 int rocker_event_link_changed(Rocker *r, uint32_t pport, bool link_up);
68 int rocker_event_mac_vlan_seen(Rocker *r, uint32_t pport, uint8_t *addr,
69 uint16_t vlan_id);
70 int rx_produce(World *world, uint32_t pport,
71 const struct iovec *iov, int iovcnt, uint8_t copy_to_cpu);
72 int rocker_port_eg(Rocker *r, uint32_t pport,
73 const struct iovec *iov, int iovcnt);
74
75 #endif /* ROCKER_H */
76