hw/net/rocker/rocker.h

   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
  33 static inline G_GNUC_PRINTF(1, 2) int DPRINTF(const char *fmt, ...)
  34 {
  35     return 0;
  36 }
  37 #endif
  38
  39 #define __le16 uint16_t
  40 #define __le32 uint32_t
  41 #define __le64 uint64_t
  42
  43 #define __be16 uint16_t
  44 #define __be32 uint32_t
  45 #define __be64 uint64_t
  46
  47 static inline bool ipv4_addr_is_multicast(__be32 addr)
  48 {
  49     return (addr & htonl(0xf0000000)) == htonl(0xe0000000);
  50 }
  51
  52 typedef struct ipv6_addr {
  53     union {
  54         uint8_t addr8[16];
  55         __be16 addr16[8];
  56         __be32 addr32[4];
  57     };
  58 } Ipv6Addr;
  59
  60 static inline bool ipv6_addr_is_multicast(const Ipv6Addr *addr)
  61 {
  62     return (addr->addr32[0] & htonl(0xFF000000)) == htonl(0xFF000000);
  63 }
  64
  65 typedef struct world World;
  66 typedef struct desc_info DescInfo;
  67 typedef struct desc_ring DescRing;
  68
  69 #define TYPE_ROCKER "rocker"
  70 typedef struct rocker Rocker;
  71 DECLARE_INSTANCE_CHECKER(Rocker, ROCKER,
  72                          TYPE_ROCKER)
  73
  74 Rocker *rocker_find(const char *name);
  75 int rocker_event_link_changed(Rocker *r, uint32_t pport, bool link_up);
  76 int rocker_event_mac_vlan_seen(Rocker *r, uint32_t pport, uint8_t *addr,
  77                                uint16_t vlan_id);
  78 int rx_produce(World *world, uint32_t pport,
  79                const struct iovec *iov, int iovcnt, uint8_t copy_to_cpu);
  80 int rocker_port_eg(Rocker *r, uint32_t pport,
  81                    const struct iovec *iov, int iovcnt);
  82
  83 #endif /* ROCKER_H */