1 /*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * Copyright (c) 2013-2019 Mellanox Technologies, Ltd. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice unmodified, this list of conditions, and the following 13 * disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 #ifndef _LINUX_NETDEVICE_H_ 32 #define _LINUX_NETDEVICE_H_ 33 34 #include <linux/types.h> 35 36 #include <sys/socket.h> 37 38 #include <net/if_types.h> 39 #include <net/if.h> 40 #include <net/if_var.h> 41 #include <net/if_dl.h> 42 43 #include <linux/list.h> 44 #include <linux/completion.h> 45 #include <linux/device.h> 46 #include <linux/workqueue.h> 47 #include <linux/net.h> 48 #include <linux/notifier.h> 49 50 #ifdef VIMAGE 51 #define init_net *vnet0 52 #else 53 #define init_net *((struct vnet *)0) 54 #endif 55 56 #define MAX_ADDR_LEN 20 57 58 #define net_device ifnet 59 60 static inline struct ifnet * 61 dev_get_by_index(struct vnet *vnet, int if_index) 62 { 63 struct epoch_tracker et; 64 struct ifnet *retval; 65 66 NET_EPOCH_ENTER(et); 67 CURVNET_SET(vnet); 68 retval = ifnet_byindex_ref(if_index); 69 CURVNET_RESTORE(); 70 NET_EPOCH_EXIT(et); 71 72 return (retval); 73 } 74 75 #define dev_hold(d) if_ref(d) 76 #define dev_put(d) if_rele(d) 77 #define dev_net(d) ((d)->if_vnet) 78 79 #define net_eq(a,b) ((a) == (b)) 80 81 #define netif_running(dev) !!((dev)->if_drv_flags & IFF_DRV_RUNNING) 82 #define netif_oper_up(dev) !!((dev)->if_flags & IFF_UP) 83 #define netif_carrier_ok(dev) ((dev)->if_link_state == LINK_STATE_UP) 84 85 static inline void * 86 netdev_priv(const struct net_device *dev) 87 { 88 return (dev->if_softc); 89 } 90 91 #define rtnl_lock() 92 #define rtnl_unlock() 93 94 static inline int 95 dev_mc_delete(struct net_device *dev, void *addr, int alen, int all) 96 { 97 struct sockaddr_dl sdl; 98 99 if (alen > sizeof(sdl.sdl_data)) 100 return (-EINVAL); 101 memset(&sdl, 0, sizeof(sdl)); 102 sdl.sdl_len = sizeof(sdl); 103 sdl.sdl_family = AF_LINK; 104 sdl.sdl_alen = alen; 105 memcpy(&sdl.sdl_data, addr, alen); 106 107 return -if_delmulti(dev, (struct sockaddr *)&sdl); 108 } 109 110 static inline int 111 dev_mc_del(struct net_device *dev, void *addr) 112 { 113 return (dev_mc_delete(dev, addr, 6, 0)); 114 } 115 116 static inline int 117 dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly) 118 { 119 struct sockaddr_dl sdl; 120 121 if (alen > sizeof(sdl.sdl_data)) 122 return (-EINVAL); 123 memset(&sdl, 0, sizeof(sdl)); 124 sdl.sdl_len = sizeof(sdl); 125 sdl.sdl_family = AF_LINK; 126 sdl.sdl_alen = alen; 127 memcpy(&sdl.sdl_data, addr, alen); 128 129 return -if_addmulti(dev, (struct sockaddr *)&sdl, NULL); 130 } 131 132 /* According to linux::ipoib_main.c. */ 133 struct netdev_notifier_info { 134 struct net_device *dev; 135 }; 136 137 static inline struct net_device * 138 netdev_notifier_info_to_dev(struct netdev_notifier_info *ni) 139 { 140 return (ni->dev); 141 } 142 143 int register_netdevice_notifier(struct notifier_block *); 144 int register_inetaddr_notifier(struct notifier_block *); 145 int unregister_netdevice_notifier(struct notifier_block *); 146 int unregister_inetaddr_notifier(struct notifier_block *); 147 148 #endif /* _LINUX_NETDEVICE_H_ */ 149