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include/linux/netdevice.h
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/* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket * interface as the means of communication with the user level. * * Definitions for the Interfaces handler. * * Version: @(#)dev.h 1.0.10 08/12/93 * |
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* Authors: Ross Biro |
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* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> * Corey Minyard <wf-rch!minyard@relay.EU.net> * Donald J. Becker, <becker@cesdis.gsfc.nasa.gov> |
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* Alan Cox, <alan@lxorguk.ukuu.org.uk> |
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* Bjorn Ekwall. <bj0rn@blox.se> * Pekka Riikonen <priikone@poseidon.pspt.fi> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * * Moved to /usr/include/linux for NET3 */ #ifndef _LINUX_NETDEVICE_H #define _LINUX_NETDEVICE_H #include <linux/if.h> #include <linux/if_ether.h> #include <linux/if_packet.h> #ifdef __KERNEL__ |
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#include <linux/timer.h> |
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#include <linux/delay.h> |
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#include <asm/atomic.h> #include <asm/cache.h> #include <asm/byteorder.h> |
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#include <linux/device.h> #include <linux/percpu.h> |
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#include <linux/dmaengine.h> |
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#include <linux/workqueue.h> |
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#include <net/net_namespace.h> |
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#include <net/dsa.h> |
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#ifdef CONFIG_DCB |
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#include <net/dcbnl.h> #endif |
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struct vlan_group; struct ethtool_ops; |
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struct netpoll_info; |
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/* 802.11 specific */ struct wireless_dev; |
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/* source back-compat hooks */ #define SET_ETHTOOL_OPS(netdev,ops) \ ( (netdev)->ethtool_ops = (ops) ) #define HAVE_ALLOC_NETDEV /* feature macro: alloc_xxxdev functions are available. */ #define HAVE_FREE_NETDEV /* free_netdev() */ #define HAVE_NETDEV_PRIV /* netdev_priv() */ #define NET_XMIT_SUCCESS 0 #define NET_XMIT_DROP 1 /* skb dropped */ #define NET_XMIT_CN 2 /* congestion notification */ #define NET_XMIT_POLICED 3 /* skb is shot by police */ |
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#define NET_XMIT_MASK 0xFFFF /* qdisc flags in net/sch_generic.h */ |
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/* Backlog congestion levels */ #define NET_RX_SUCCESS 0 /* keep 'em coming, baby */ #define NET_RX_DROP 1 /* packet dropped */ #define NET_RX_CN_LOW 2 /* storm alert, just in case */ #define NET_RX_CN_MOD 3 /* Storm on its way! */ #define NET_RX_CN_HIGH 4 /* The storm is here */ #define NET_RX_BAD 5 /* packet dropped due to kernel error */ |
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/* NET_XMIT_CN is special. It does not guarantee that this packet is lost. It * indicates that the device will soon be dropping packets, or already drops * some packets of the same priority; prompting us to send less aggressively. */ #define net_xmit_eval(e) ((e) == NET_XMIT_CN? 0 : (e)) |
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#define net_xmit_errno(e) ((e) != NET_XMIT_CN ? -ENOBUFS : 0) #endif #define MAX_ADDR_LEN 32 /* Largest hardware address length */ /* Driver transmit return codes */ #define NETDEV_TX_OK 0 /* driver took care of packet */ #define NETDEV_TX_BUSY 1 /* driver tx path was busy*/ #define NETDEV_TX_LOCKED -1 /* driver tx lock was already taken */ |
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#ifdef __KERNEL__ |
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/* * Compute the worst case header length according to the protocols * used. */ |
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#if defined(CONFIG_WLAN_80211) || defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE) # if defined(CONFIG_MAC80211_MESH) # define LL_MAX_HEADER 128 # else # define LL_MAX_HEADER 96 # endif #elif defined(CONFIG_TR) # define LL_MAX_HEADER 48 |
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#else |
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# define LL_MAX_HEADER 32 |
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#endif |
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#if !defined(CONFIG_NET_IPIP) && !defined(CONFIG_NET_IPIP_MODULE) && \ !defined(CONFIG_NET_IPGRE) && !defined(CONFIG_NET_IPGRE_MODULE) && \ !defined(CONFIG_IPV6_SIT) && !defined(CONFIG_IPV6_SIT_MODULE) && \ !defined(CONFIG_IPV6_TUNNEL) && !defined(CONFIG_IPV6_TUNNEL_MODULE) |
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#define MAX_HEADER LL_MAX_HEADER #else #define MAX_HEADER (LL_MAX_HEADER + 48) #endif |
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#endif /* __KERNEL__ */ |
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/* * Network device statistics. Akin to the 2.0 ether stats but * with byte counters. */ struct net_device_stats { unsigned long rx_packets; /* total packets received */ unsigned long tx_packets; /* total packets transmitted */ unsigned long rx_bytes; /* total bytes received */ unsigned long tx_bytes; /* total bytes transmitted */ unsigned long rx_errors; /* bad packets received */ unsigned long tx_errors; /* packet transmit problems */ unsigned long rx_dropped; /* no space in linux buffers */ unsigned long tx_dropped; /* no space available in linux */ unsigned long multicast; /* multicast packets received */ unsigned long collisions; /* detailed rx_errors: */ unsigned long rx_length_errors; unsigned long rx_over_errors; /* receiver ring buff overflow */ unsigned long rx_crc_errors; /* recved pkt with crc error */ unsigned long rx_frame_errors; /* recv'd frame alignment error */ unsigned long rx_fifo_errors; /* recv'r fifo overrun */ unsigned long rx_missed_errors; /* receiver missed packet */ /* detailed tx_errors */ unsigned long tx_aborted_errors; unsigned long tx_carrier_errors; unsigned long tx_fifo_errors; unsigned long tx_heartbeat_errors; unsigned long tx_window_errors; /* for cslip etc */ unsigned long rx_compressed; unsigned long tx_compressed; }; /* Media selection options. */ enum { IF_PORT_UNKNOWN = 0, IF_PORT_10BASE2, IF_PORT_10BASET, IF_PORT_AUI, IF_PORT_100BASET, IF_PORT_100BASETX, IF_PORT_100BASEFX }; #ifdef __KERNEL__ #include <linux/cache.h> #include <linux/skbuff.h> struct neighbour; struct neigh_parms; struct sk_buff; struct netif_rx_stats { unsigned total; unsigned dropped; unsigned time_squeeze; |
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unsigned cpu_collision; }; DECLARE_PER_CPU(struct netif_rx_stats, netdev_rx_stat); |
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struct dev_addr_list { struct dev_addr_list *next; u8 da_addr[MAX_ADDR_LEN]; u8 da_addrlen; |
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u8 da_synced; |
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int da_users; int da_gusers; }; |
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/* * We tag multicasts with these structures. */ |
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#define dev_mc_list dev_addr_list #define dmi_addr da_addr #define dmi_addrlen da_addrlen #define dmi_users da_users #define dmi_gusers da_gusers |
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struct hh_cache { struct hh_cache *hh_next; /* Next entry */ atomic_t hh_refcnt; /* number of users */ |
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/* * We want hh_output, hh_len, hh_lock and hh_data be a in a separate * cache line on SMP. * They are mostly read, but hh_refcnt may be changed quite frequently, * incurring cache line ping pongs. */ __be16 hh_type ____cacheline_aligned_in_smp; /* protocol identifier, f.e ETH_P_IP |
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* NOTE: For VLANs, this will be the * encapuslated type. --BLG */ |
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u16 hh_len; /* length of header */ |
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int (*hh_output)(struct sk_buff *skb); |
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seqlock_t hh_lock; |
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/* cached hardware header; allow for machine alignment needs. */ #define HH_DATA_MOD 16 #define HH_DATA_OFF(__len) \ |
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(HH_DATA_MOD - (((__len - 1) & (HH_DATA_MOD - 1)) + 1)) |
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#define HH_DATA_ALIGN(__len) \ (((__len)+(HH_DATA_MOD-1))&~(HH_DATA_MOD - 1)) unsigned long hh_data[HH_DATA_ALIGN(LL_MAX_HEADER) / sizeof(long)]; }; /* Reserve HH_DATA_MOD byte aligned hard_header_len, but at least that much. * Alternative is: * dev->hard_header_len ? (dev->hard_header_len + * (HH_DATA_MOD - 1)) & ~(HH_DATA_MOD - 1) : 0 * * We could use other alignment values, but we must maintain the * relationship HH alignment <= LL alignment. |
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* * LL_ALLOCATED_SPACE also takes into account the tailroom the device * may need. |
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*/ #define LL_RESERVED_SPACE(dev) \ |
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((((dev)->hard_header_len+(dev)->needed_headroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) |
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#define LL_RESERVED_SPACE_EXTRA(dev,extra) \ |
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((((dev)->hard_header_len+(dev)->needed_headroom+(extra))&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) #define LL_ALLOCATED_SPACE(dev) \ ((((dev)->hard_header_len+(dev)->needed_headroom+(dev)->needed_tailroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) |
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struct header_ops { int (*create) (struct sk_buff *skb, struct net_device *dev, unsigned short type, const void *daddr, const void *saddr, unsigned len); int (*parse)(const struct sk_buff *skb, unsigned char *haddr); int (*rebuild)(struct sk_buff *skb); #define HAVE_HEADER_CACHE int (*cache)(const struct neighbour *neigh, struct hh_cache *hh); void (*cache_update)(struct hh_cache *hh, const struct net_device *dev, const unsigned char *haddr); }; |
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/* These flag bits are private to the generic network queueing * layer, they may not be explicitly referenced by any other * code. */ enum netdev_state_t { |
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__LINK_STATE_START, __LINK_STATE_PRESENT, |
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__LINK_STATE_NOCARRIER, |
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__LINK_STATE_LINKWATCH_PENDING, __LINK_STATE_DORMANT, |
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}; /* * This structure holds at boot time configured netdevice settings. They * are then used in the device probing. */ struct netdev_boot_setup { char name[IFNAMSIZ]; struct ifmap map; }; #define NETDEV_BOOT_SETUP_MAX 8 |
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extern int __init netdev_boot_setup(char *str); |
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/* |
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* Structure for NAPI scheduling similar to tasklet but with weighting */ struct napi_struct { /* The poll_list must only be managed by the entity which * changes the state of the NAPI_STATE_SCHED bit. This means * whoever atomically sets that bit can add this napi_struct * to the per-cpu poll_list, and whoever clears that bit * can remove from the list right before clearing the bit. */ struct list_head poll_list; unsigned long state; int weight; int (*poll)(struct napi_struct *, int); #ifdef CONFIG_NETPOLL spinlock_t poll_lock; int poll_owner; |
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#endif |
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struct net_device *dev; |
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struct list_head dev_list; struct sk_buff *gro_list; |
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struct sk_buff *skb; |
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}; enum { NAPI_STATE_SCHED, /* Poll is scheduled */ |
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NAPI_STATE_DISABLE, /* Disable pending */ |
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NAPI_STATE_NPSVC, /* Netpoll - don't dequeue from poll_list */ |
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}; |
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extern void __napi_schedule(struct napi_struct *n); |
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static inline int napi_disable_pending(struct napi_struct *n) { return test_bit(NAPI_STATE_DISABLE, &n->state); } |
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/** * napi_schedule_prep - check if napi can be scheduled * @n: napi context * * Test if NAPI routine is already running, and if not mark * it as running. This is used as a condition variable |
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* insure only one NAPI poll instance runs. We also make * sure there is no pending NAPI disable. |
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*/ static inline int napi_schedule_prep(struct napi_struct *n) { |
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return !napi_disable_pending(n) && !test_and_set_bit(NAPI_STATE_SCHED, &n->state); |
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} /** * napi_schedule - schedule NAPI poll * @n: napi context * * Schedule NAPI poll routine to be called if it is not already * running. */ static inline void napi_schedule(struct napi_struct *n) { if (napi_schedule_prep(n)) __napi_schedule(n); } |
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/* Try to reschedule poll. Called by dev->poll() after napi_complete(). */ static inline int napi_reschedule(struct napi_struct *napi) { if (napi_schedule_prep(napi)) { __napi_schedule(napi); return 1; } return 0; } |
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/** * napi_complete - NAPI processing complete * @n: napi context * * Mark NAPI processing as complete. */ |
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extern void __napi_complete(struct napi_struct *n); extern void napi_complete(struct napi_struct *n); |
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/** * napi_disable - prevent NAPI from scheduling * @n: napi context * * Stop NAPI from being scheduled on this context. * Waits till any outstanding processing completes. */ static inline void napi_disable(struct napi_struct *n) { |
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set_bit(NAPI_STATE_DISABLE, &n->state); |
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while (test_and_set_bit(NAPI_STATE_SCHED, &n->state)) |
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msleep(1); |
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clear_bit(NAPI_STATE_DISABLE, &n->state); |
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} /** * napi_enable - enable NAPI scheduling * @n: napi context * * Resume NAPI from being scheduled on this context. * Must be paired with napi_disable. */ static inline void napi_enable(struct napi_struct *n) { BUG_ON(!test_bit(NAPI_STATE_SCHED, &n->state)); smp_mb__before_clear_bit(); clear_bit(NAPI_STATE_SCHED, &n->state); } |
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#ifdef CONFIG_SMP /** * napi_synchronize - wait until NAPI is not running * @n: napi context * * Wait until NAPI is done being scheduled on this context. * Waits till any outstanding processing completes but * does not disable future activations. */ static inline void napi_synchronize(const struct napi_struct *n) { while (test_bit(NAPI_STATE_SCHED, &n->state)) msleep(1); } #else # define napi_synchronize(n) barrier() #endif |
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enum netdev_queue_state_t { __QUEUE_STATE_XOFF, |
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__QUEUE_STATE_FROZEN, |
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}; |
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struct netdev_queue { struct net_device *dev; |
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struct Qdisc *qdisc; |
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unsigned long state; |
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spinlock_t _xmit_lock; int xmit_lock_owner; |
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struct Qdisc *qdisc_sleeping; |
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} ____cacheline_aligned_in_smp; |
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/* * This structure defines the management hooks for network devices. |
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* The following hooks can be defined; unless noted otherwise, they are * optional and can be filled with a null pointer. |
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* * int (*ndo_init)(struct net_device *dev); * This function is called once when network device is registered. * The network device can use this to any late stage initializaton * or semantic validattion. It can fail with an error code which will * be propogated back to register_netdev * * void (*ndo_uninit)(struct net_device *dev); * This function is called when device is unregistered or when registration * fails. It is not called if init fails. * * int (*ndo_open)(struct net_device *dev); * This function is called when network device transistions to the up * state. * * int (*ndo_stop)(struct net_device *dev); * This function is called when network device transistions to the down * state. * |
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* int (*ndo_hard_start_xmit)(struct sk_buff *skb, struct net_device *dev); * Called when a packet needs to be transmitted. * Must return NETDEV_TX_OK , NETDEV_TX_BUSY, or NETDEV_TX_LOCKED, * Required can not be NULL. * * u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb); * Called to decide which queue to when device supports multiple * transmit queues. * |
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* void (*ndo_change_rx_flags)(struct net_device *dev, int flags); * This function is called to allow device receiver to make * changes to configuration when multicast or promiscious is enabled. * * void (*ndo_set_rx_mode)(struct net_device *dev); * This function is called device changes address list filtering. * * void (*ndo_set_multicast_list)(struct net_device *dev); * This function is called when the multicast address list changes. * * int (*ndo_set_mac_address)(struct net_device *dev, void *addr); * This function is called when the Media Access Control address * needs to be changed. If not this interface is not defined, the * mac address can not be changed. * * int (*ndo_validate_addr)(struct net_device *dev); * Test if Media Access Control address is valid for the device. * * int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd); * Called when a user request an ioctl which can't be handled by * the generic interface code. If not defined ioctl's return * not supported error code. * * int (*ndo_set_config)(struct net_device *dev, struct ifmap *map); * Used to set network devices bus interface parameters. This interface * is retained for legacy reason, new devices should use the bus * interface (PCI) for low level management. * * int (*ndo_change_mtu)(struct net_device *dev, int new_mtu); * Called when a user wants to change the Maximum Transfer Unit * of a device. If not defined, any request to change MTU will * will return an error. * |
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* void (*ndo_tx_timeout)(struct net_device *dev); |
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* Callback uses when the transmitter has not made any progress * for dev->watchdog ticks. * * struct net_device_stats* (*get_stats)(struct net_device *dev); * Called when a user wants to get the network device usage * statistics. If not defined, the counters in dev->stats will * be used. * * void (*ndo_vlan_rx_register)(struct net_device *dev, struct vlan_group *grp); * If device support VLAN receive accleration * (ie. dev->features & NETIF_F_HW_VLAN_RX), then this function is called * when vlan groups for the device changes. Note: grp is NULL * if no vlan's groups are being used. * * void (*ndo_vlan_rx_add_vid)(struct net_device *dev, unsigned short vid); * If device support VLAN filtering (dev->features & NETIF_F_HW_VLAN_FILTER) * this function is called when a VLAN id is registered. * * void (*ndo_vlan_rx_kill_vid)(struct net_device *dev, unsigned short vid); * If device support VLAN filtering (dev->features & NETIF_F_HW_VLAN_FILTER) * this function is called when a VLAN id is unregistered. * * void (*ndo_poll_controller)(struct net_device *dev); */ |
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#define HAVE_NET_DEVICE_OPS |
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struct net_device_ops { int (*ndo_init)(struct net_device *dev); void (*ndo_uninit)(struct net_device *dev); int (*ndo_open)(struct net_device *dev); int (*ndo_stop)(struct net_device *dev); |
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int (*ndo_start_xmit) (struct sk_buff *skb, struct net_device *dev); u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb); |
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#define HAVE_CHANGE_RX_FLAGS void (*ndo_change_rx_flags)(struct net_device *dev, int flags); #define HAVE_SET_RX_MODE void (*ndo_set_rx_mode)(struct net_device *dev); #define HAVE_MULTICAST void (*ndo_set_multicast_list)(struct net_device *dev); #define HAVE_SET_MAC_ADDR int (*ndo_set_mac_address)(struct net_device *dev, void *addr); #define HAVE_VALIDATE_ADDR int (*ndo_validate_addr)(struct net_device *dev); #define HAVE_PRIVATE_IOCTL int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd); #define HAVE_SET_CONFIG int (*ndo_set_config)(struct net_device *dev, struct ifmap *map); #define HAVE_CHANGE_MTU |
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int (*ndo_change_mtu)(struct net_device *dev, int new_mtu); int (*ndo_neigh_setup)(struct net_device *dev, struct neigh_parms *); |
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#define HAVE_TX_TIMEOUT void (*ndo_tx_timeout) (struct net_device *dev); struct net_device_stats* (*ndo_get_stats)(struct net_device *dev); void (*ndo_vlan_rx_register)(struct net_device *dev, struct vlan_group *grp); void (*ndo_vlan_rx_add_vid)(struct net_device *dev, unsigned short vid); void (*ndo_vlan_rx_kill_vid)(struct net_device *dev, unsigned short vid); #ifdef CONFIG_NET_POLL_CONTROLLER #define HAVE_NETDEV_POLL void (*ndo_poll_controller)(struct net_device *dev); #endif }; |
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/* |
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* The DEVICE structure. * Actually, this whole structure is a big mistake. It mixes I/O * data with strictly "high-level" data, and it has to know about * almost every data structure used in the INET module. * * FIXME: cleanup struct net_device such that network protocol info * moves out. */ struct net_device { /* * This is the first field of the "visible" part of this structure * (i.e. as seen by users in the "Space.c" file). It is the name * the interface. */ char name[IFNAMSIZ]; |
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/* device name hash chain */ struct hlist_node name_hlist; |
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/* snmp alias */ char *ifalias; |
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/* * I/O specific fields * FIXME: Merge these and struct ifmap into one */ unsigned long mem_end; /* shared mem end */ unsigned long mem_start; /* shared mem start */ unsigned long base_addr; /* device I/O address */ unsigned int irq; /* device IRQ number */ /* * Some hardware also needs these fields, but they are not * part of the usual set specified in Space.c. */ unsigned char if_port; /* Selectable AUI, TP,..*/ unsigned char dma; /* DMA channel */ unsigned long state; |
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struct list_head dev_list; |
bea3348ee
|
612 |
struct list_head napi_list; |
1da177e4c
|
613 |
|
9356b8fc0
|
614 615 616 |
/* Net device features */ unsigned long features; #define NETIF_F_SG 1 /* Scatter/gather IO. */ |
d212f87b0
|
617 |
#define NETIF_F_IP_CSUM 2 /* Can checksum TCP/UDP over IPv4. */ |
9356b8fc0
|
618 619 |
#define NETIF_F_NO_CSUM 4 /* Does not require checksum. F.e. loopack. */ #define NETIF_F_HW_CSUM 8 /* Can checksum all the packets. */ |
d212f87b0
|
620 |
#define NETIF_F_IPV6_CSUM 16 /* Can checksum TCP/UDP over IPV6 */ |
9356b8fc0
|
621 622 623 624 625 626 |
#define NETIF_F_HIGHDMA 32 /* Can DMA to high memory. */ #define NETIF_F_FRAGLIST 64 /* Scatter/gather IO. */ #define NETIF_F_HW_VLAN_TX 128 /* Transmit VLAN hw acceleration */ #define NETIF_F_HW_VLAN_RX 256 /* Receive VLAN hw acceleration */ #define NETIF_F_HW_VLAN_FILTER 512 /* Receive filtering on VLAN */ #define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN packets */ |
37c3185a0
|
627 |
#define NETIF_F_GSO 2048 /* Enable software GSO. */ |
e24eb521f
|
628 629 |
#define NETIF_F_LLTX 4096 /* LockLess TX - deprecated. Please */ /* do not use LLTX in new drivers */ |
ce286d327
|
630 |
#define NETIF_F_NETNS_LOCAL 8192 /* Does not change network namespaces */ |
d565b0a1a
|
631 |
#define NETIF_F_GRO 16384 /* Generic receive offload */ |
3ae7c0b2e
|
632 |
#define NETIF_F_LRO 32768 /* large receive offload */ |
7967168ce
|
633 634 |
/* Segmentation offload features */ |
289c79a4b
|
635 636 |
#define NETIF_F_GSO_SHIFT 16 #define NETIF_F_GSO_MASK 0xffff0000 |
7967168ce
|
637 |
#define NETIF_F_TSO (SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT) |
f83ef8c0b
|
638 |
#define NETIF_F_UFO (SKB_GSO_UDP << NETIF_F_GSO_SHIFT) |
576a30eb6
|
639 |
#define NETIF_F_GSO_ROBUST (SKB_GSO_DODGY << NETIF_F_GSO_SHIFT) |
f83ef8c0b
|
640 641 |
#define NETIF_F_TSO_ECN (SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT) #define NETIF_F_TSO6 (SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT) |
9356b8fc0
|
642 |
|
78eb88773
|
643 644 |
/* List of features with software fallbacks. */ #define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6) |
d212f87b0
|
645 |
|
8648b3053
|
646 |
#define NETIF_F_GEN_CSUM (NETIF_F_NO_CSUM | NETIF_F_HW_CSUM) |
d212f87b0
|
647 648 649 |
#define NETIF_F_V4_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IP_CSUM) #define NETIF_F_V6_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IPV6_CSUM) #define NETIF_F_ALL_CSUM (NETIF_F_V4_CSUM | NETIF_F_V6_CSUM) |
8648b3053
|
650 |
|
b63365a2d
|
651 652 653 654 655 |
/* * If one device supports one of these features, then enable them * for all in netdev_increment_features. */ #define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \ |
d314774cf
|
656 |
NETIF_F_SG | NETIF_F_HIGHDMA | \ |
b63365a2d
|
657 |
NETIF_F_FRAGLIST) |
1da177e4c
|
658 659 660 |
/* Interface index. Unique device identifier */ int ifindex; int iflink; |
c45d286e7
|
661 |
struct net_device_stats stats; |
1da177e4c
|
662 |
|
b86e0280b
|
663 |
#ifdef CONFIG_WIRELESS_EXT |
1da177e4c
|
664 665 666 667 668 |
/* List of functions to handle Wireless Extensions (instead of ioctl). * See <net/iw_handler.h> for details. Jean II */ const struct iw_handler_def * wireless_handlers; /* Instance data managed by the core of Wireless Extensions. */ struct iw_public_data * wireless_data; |
b86e0280b
|
669 |
#endif |
d314774cf
|
670 671 |
/* Management operations */ const struct net_device_ops *netdev_ops; |
76fd85937
|
672 |
const struct ethtool_ops *ethtool_ops; |
1da177e4c
|
673 |
|
3b04ddde0
|
674 675 |
/* Hardware header description */ const struct header_ops *header_ops; |
b00055aac
|
676 |
unsigned int flags; /* interface flags (a la BSD) */ |
1da177e4c
|
677 678 679 |
unsigned short gflags; unsigned short priv_flags; /* Like 'flags' but invisible to userspace. */ unsigned short padded; /* How much padding added by alloc_netdev() */ |
b00055aac
|
680 681 |
unsigned char operstate; /* RFC2863 operstate */ unsigned char link_mode; /* mapping policy to operstate */ |
1da177e4c
|
682 683 684 |
unsigned mtu; /* interface MTU value */ unsigned short type; /* interface hardware type */ unsigned short hard_header_len; /* hardware hdr length */ |
1da177e4c
|
685 |
|
f5184d267
|
686 687 688 689 690 691 |
/* extra head- and tailroom the hardware may need, but not in all cases * can this be guaranteed, especially tailroom. Some cases also use * LL_MAX_HEADER instead to allocate the skb. */ unsigned short needed_headroom; unsigned short needed_tailroom; |
1da177e4c
|
692 693 694 695 696 |
struct net_device *master; /* Pointer to master device of a group, * which this device is member of. */ /* Interface address info. */ |
a6f9a7057
|
697 |
unsigned char perm_addr[MAX_ADDR_LEN]; /* permanent hw address */ |
1da177e4c
|
698 699 |
unsigned char addr_len; /* hardware address length */ unsigned short dev_id; /* for shared network cards */ |
f1f28aa35
|
700 |
spinlock_t addr_list_lock; |
4417da668
|
701 702 703 |
struct dev_addr_list *uc_list; /* Secondary unicast mac addresses */ int uc_count; /* Number of installed ucasts */ int uc_promisc; |
3fba5a8b1
|
704 |
struct dev_addr_list *mc_list; /* Multicast mac addresses */ |
1da177e4c
|
705 |
int mc_count; /* Number of installed mcasts */ |
9d45abe1c
|
706 707 |
unsigned int promiscuity; unsigned int allmulti; |
1da177e4c
|
708 |
|
1da177e4c
|
709 710 711 |
/* Protocol specific pointers */ |
91da11f87
|
712 713 714 |
#ifdef CONFIG_NET_DSA void *dsa_ptr; /* dsa specific data */ #endif |
1da177e4c
|
715 716 717 718 719 720 |
void *atalk_ptr; /* AppleTalk link */ void *ip_ptr; /* IPv4 specific data */ void *dn_ptr; /* DECnet specific data */ void *ip6_ptr; /* IPv6 specific data */ void *ec_ptr; /* Econet specific data */ void *ax25_ptr; /* AX.25 specific data */ |
704232c27
|
721 722 |
struct wireless_dev *ieee80211_ptr; /* IEEE 802.11 specific data, assign before registering */ |
1da177e4c
|
723 |
|
9356b8fc0
|
724 725 726 |
/* * Cache line mostly used on receive path (including eth_type_trans()) */ |
9356b8fc0
|
727 728 729 |
unsigned long last_rx; /* Time of last Rx */ /* Interface address info used in eth_type_trans() */ unsigned char dev_addr[MAX_ADDR_LEN]; /* hw address, (before bcast |
d314774cf
|
730 |
because most packets are unicast) */ |
9356b8fc0
|
731 732 |
unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */ |
1da177e4c
|
733 |
|
bb949fbd1
|
734 |
struct netdev_queue rx_queue; |
e8a0464cc
|
735 736 |
struct netdev_queue *_tx ____cacheline_aligned_in_smp; |
fd2ea0a79
|
737 738 |
/* Number of TX queues allocated at alloc_netdev_mq() time */ |
e8a0464cc
|
739 |
unsigned int num_tx_queues; |
fd2ea0a79
|
740 741 742 |
/* Number of TX queues currently active in device */ unsigned int real_num_tx_queues; |
1da177e4c
|
743 |
unsigned long tx_queue_len; /* Max frames per queue allowed */ |
c3f26a269
|
744 |
spinlock_t tx_global_lock; |
9356b8fc0
|
745 746 747 |
/* * One part is mostly used on xmit path (device) */ |
9356b8fc0
|
748 749 750 751 752 |
/* These may be needed for future network-power-down code. */ unsigned long trans_start; /* Time (in jiffies) of last Tx */ int watchdog_timeo; /* used by dev_watchdog() */ struct timer_list watchdog_timer; |
1da177e4c
|
753 |
/* Number of references to this device */ |
9356b8fc0
|
754 |
atomic_t refcnt ____cacheline_aligned_in_smp; |
1da177e4c
|
755 756 |
/* delayed register/unregister */ struct list_head todo_list; |
1da177e4c
|
757 758 |
/* device index hash chain */ struct hlist_node index_hlist; |
572a103de
|
759 |
struct net_device *link_watch_next; |
1da177e4c
|
760 761 |
/* register/unregister state machine */ enum { NETREG_UNINITIALIZED=0, |
b17a7c179
|
762 |
NETREG_REGISTERED, /* completed register_netdevice */ |
1da177e4c
|
763 764 765 766 |
NETREG_UNREGISTERING, /* called unregister_netdevice */ NETREG_UNREGISTERED, /* completed unregister todo */ NETREG_RELEASED, /* called free_netdev */ } reg_state; |
d314774cf
|
767 768 |
/* Called from unregister, can be used to call free_netdev */ void (*destructor)(struct net_device *dev); |
1da177e4c
|
769 |
|
1da177e4c
|
770 |
#ifdef CONFIG_NETPOLL |
115c1d6e6
|
771 |
struct netpoll_info *npinfo; |
1da177e4c
|
772 |
#endif |
eae792b72
|
773 |
|
c346dca10
|
774 |
#ifdef CONFIG_NET_NS |
4a1c53711
|
775 776 |
/* Network namespace this network device is inside */ struct net *nd_net; |
c346dca10
|
777 |
#endif |
4a1c53711
|
778 |
|
4951704b4
|
779 780 |
/* mid-layer private */ void *ml_priv; |
1da177e4c
|
781 782 |
/* bridge stuff */ struct net_bridge_port *br_port; |
b863ceb7d
|
783 784 |
/* macvlan */ struct macvlan_port *macvlan_port; |
eca9ebac6
|
785 786 |
/* GARP */ struct garp_port *garp_port; |
1da177e4c
|
787 |
|
1da177e4c
|
788 |
/* class/net/name entry */ |
43cb76d91
|
789 |
struct device dev; |
fe9925b55
|
790 791 |
/* space for optional statistics and wireless sysfs groups */ struct attribute_group *sysfs_groups[3]; |
38f7b870d
|
792 793 794 |
/* rtnetlink link ops */ const struct rtnl_link_ops *rtnl_link_ops; |
f25f4e448
|
795 |
|
289c79a4b
|
796 797 |
/* VLAN feature mask */ unsigned long vlan_features; |
82cc1a7a5
|
798 799 800 |
/* for setting kernel sock attribute on TCP connection setup */ #define GSO_MAX_SIZE 65536 unsigned int gso_max_size; |
d314774cf
|
801 |
|
7a6b6f515
|
802 |
#ifdef CONFIG_DCB |
2f90b8657
|
803 804 805 |
/* Data Center Bridging netlink ops */ struct dcbnl_rtnl_ops *dcbnl_ops; #endif |
d314774cf
|
806 807 808 809 810 811 |
#ifdef CONFIG_COMPAT_NET_DEV_OPS struct { int (*init)(struct net_device *dev); void (*uninit)(struct net_device *dev); int (*open)(struct net_device *dev); int (*stop)(struct net_device *dev); |
008298231
|
812 813 814 815 |
int (*hard_start_xmit) (struct sk_buff *skb, struct net_device *dev); u16 (*select_queue)(struct net_device *dev, struct sk_buff *skb); |
d314774cf
|
816 817 818 819 820 821 822 823 824 825 826 827 |
void (*change_rx_flags)(struct net_device *dev, int flags); void (*set_rx_mode)(struct net_device *dev); void (*set_multicast_list)(struct net_device *dev); int (*set_mac_address)(struct net_device *dev, void *addr); int (*validate_addr)(struct net_device *dev); int (*do_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd); int (*set_config)(struct net_device *dev, struct ifmap *map); int (*change_mtu)(struct net_device *dev, int new_mtu); |
008298231
|
828 829 |
int (*neigh_setup)(struct net_device *dev, struct neigh_parms *); |
d314774cf
|
830 831 832 833 834 835 836 837 838 839 840 |
void (*tx_timeout) (struct net_device *dev); struct net_device_stats* (*get_stats)(struct net_device *dev); void (*vlan_rx_register)(struct net_device *dev, struct vlan_group *grp); void (*vlan_rx_add_vid)(struct net_device *dev, unsigned short vid); void (*vlan_rx_kill_vid)(struct net_device *dev, unsigned short vid); #ifdef CONFIG_NET_POLL_CONTROLLER void (*poll_controller)(struct net_device *dev); #endif |
d314774cf
|
841 |
}; |
eeda3fd64
|
842 |
#endif |
1da177e4c
|
843 |
}; |
43cb76d91
|
844 |
#define to_net_dev(d) container_of(d, struct net_device, dev) |
1da177e4c
|
845 846 847 |
#define NETDEV_ALIGN 32 #define NETDEV_ALIGN_CONST (NETDEV_ALIGN - 1) |
e8a0464cc
|
848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 |
static inline struct netdev_queue *netdev_get_tx_queue(const struct net_device *dev, unsigned int index) { return &dev->_tx[index]; } static inline void netdev_for_each_tx_queue(struct net_device *dev, void (*f)(struct net_device *, struct netdev_queue *, void *), void *arg) { unsigned int i; for (i = 0; i < dev->num_tx_queues; i++) f(dev, &dev->_tx[i], arg); } |
c346dca10
|
866 867 868 869 870 871 872 873 874 875 876 877 878 879 |
/* * Net namespace inlines */ static inline struct net *dev_net(const struct net_device *dev) { #ifdef CONFIG_NET_NS return dev->nd_net; #else return &init_net; #endif } static inline |
f5aa23fd4
|
880 |
void dev_net_set(struct net_device *dev, struct net *net) |
c346dca10
|
881 882 |
{ #ifdef CONFIG_NET_NS |
f3005d7f4
|
883 884 |
release_net(dev->nd_net); dev->nd_net = hold_net(net); |
c346dca10
|
885 886 |
#endif } |
cf85d08fd
|
887 888 889 890 891 892 893 894 895 |
static inline bool netdev_uses_dsa_tags(struct net_device *dev) { #ifdef CONFIG_NET_DSA_TAG_DSA if (dev->dsa_ptr != NULL) return dsa_uses_dsa_tags(dev->dsa_ptr); #endif return 0; } |
396138f03
|
896 897 898 899 900 901 902 903 904 |
static inline bool netdev_uses_trailer_tags(struct net_device *dev) { #ifdef CONFIG_NET_DSA_TAG_TRAILER if (dev->dsa_ptr != NULL) return dsa_uses_trailer_tags(dev->dsa_ptr); #endif return 0; } |
bea3348ee
|
905 906 907 908 909 910 |
/** * netdev_priv - access network device private data * @dev: network device * * Get network device private data */ |
6472ce609
|
911 |
static inline void *netdev_priv(const struct net_device *dev) |
1da177e4c
|
912 |
{ |
e3c50d5d2
|
913 914 915 |
return (char *)dev + ((sizeof(struct net_device) + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST); |
1da177e4c
|
916 |
} |
1da177e4c
|
917 918 919 |
/* Set the sysfs physical device reference for the network logical device * if set prior to registration will cause a symlink during initialization. */ |
43cb76d91
|
920 |
#define SET_NETDEV_DEV(net, pdev) ((net)->dev.parent = (pdev)) |
1da177e4c
|
921 |
|
3b582cc14
|
922 923 924 925 926 927 928 929 930 931 |
/** * netif_napi_add - initialize a napi context * @dev: network device * @napi: napi context * @poll: polling function * @weight: default weight * * netif_napi_add() must be used to initialize a napi context prior to calling * *any* of the other napi related functions. */ |
d565b0a1a
|
932 933 |
void netif_napi_add(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int), int weight); |
bea3348ee
|
934 |
|
d81565340
|
935 936 937 938 939 940 |
/** * netif_napi_del - remove a napi context * @napi: napi context * * netif_napi_del() removes a napi context from the network device napi list */ |
d565b0a1a
|
941 942 943 944 945 946 947 948 949 950 951 |
void netif_napi_del(struct napi_struct *napi); struct napi_gro_cb { /* This is non-zero if the packet may be of the same flow. */ int same_flow; /* This is non-zero if the packet cannot be merged with the new skb. */ int flush; /* Number of segments aggregated. */ int count; |
5d38a079c
|
952 953 954 |
/* Free the skb? */ int free; |
d565b0a1a
|
955 956 957 |
}; #define NAPI_GRO_CB(skb) ((struct napi_gro_cb *)(skb)->cb) |
d81565340
|
958 |
|
1da177e4c
|
959 |
struct packet_type { |
f2ccd8fa0
|
960 961 962 963 964 965 |
__be16 type; /* This is really htons(ether_type). */ struct net_device *dev; /* NULL is wildcarded here */ int (*func) (struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *); |
576a30eb6
|
966 967 |
struct sk_buff *(*gso_segment)(struct sk_buff *skb, int features); |
a430a43d0
|
968 |
int (*gso_send_check)(struct sk_buff *skb); |
d565b0a1a
|
969 970 971 |
struct sk_buff **(*gro_receive)(struct sk_buff **head, struct sk_buff *skb); int (*gro_complete)(struct sk_buff *skb); |
1da177e4c
|
972 973 974 |
void *af_packet_priv; struct list_head list; }; |
5d38a079c
|
975 976 977 978 979 980 981 |
struct napi_gro_fraginfo { skb_frag_t frags[MAX_SKB_FRAGS]; unsigned int nr_frags; unsigned int ip_summed; unsigned int len; __wsum csum; }; |
1da177e4c
|
982 983 |
#include <linux/interrupt.h> #include <linux/notifier.h> |
1da177e4c
|
984 |
extern rwlock_t dev_base_lock; /* Device list lock */ |
7562f876c
|
985 |
|
881d966b4
|
986 987 988 989 990 991 992 |
#define for_each_netdev(net, d) \ list_for_each_entry(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_safe(net, d, n) \ list_for_each_entry_safe(d, n, &(net)->dev_base_head, dev_list) #define for_each_netdev_continue(net, d) \ list_for_each_entry_continue(d, &(net)->dev_base_head, dev_list) #define net_device_entry(lh) list_entry(lh, struct net_device, dev_list) |
7562f876c
|
993 |
|
a050c33f4
|
994 995 996 997 |
static inline struct net_device *next_net_device(struct net_device *dev) { struct list_head *lh; struct net *net; |
c346dca10
|
998 |
net = dev_net(dev); |
a050c33f4
|
999 1000 1001 1002 1003 1004 1005 1006 1007 |
lh = dev->dev_list.next; return lh == &net->dev_base_head ? NULL : net_device_entry(lh); } static inline struct net_device *first_net_device(struct net *net) { return list_empty(&net->dev_base_head) ? NULL : net_device_entry(net->dev_base_head.next); } |
7562f876c
|
1008 |
|
1da177e4c
|
1009 1010 |
extern int netdev_boot_setup_check(struct net_device *dev); extern unsigned long netdev_boot_base(const char *prefix, int unit); |
881d966b4
|
1011 1012 1013 |
extern struct net_device *dev_getbyhwaddr(struct net *net, unsigned short type, char *hwaddr); extern struct net_device *dev_getfirstbyhwtype(struct net *net, unsigned short type); extern struct net_device *__dev_getfirstbyhwtype(struct net *net, unsigned short type); |
1da177e4c
|
1014 1015 1016 |
extern void dev_add_pack(struct packet_type *pt); extern void dev_remove_pack(struct packet_type *pt); extern void __dev_remove_pack(struct packet_type *pt); |
881d966b4
|
1017 |
extern struct net_device *dev_get_by_flags(struct net *net, unsigned short flags, |
1da177e4c
|
1018 |
unsigned short mask); |
881d966b4
|
1019 1020 |
extern struct net_device *dev_get_by_name(struct net *net, const char *name); extern struct net_device *__dev_get_by_name(struct net *net, const char *name); |
1da177e4c
|
1021 1022 1023 |
extern int dev_alloc_name(struct net_device *dev, const char *name); extern int dev_open(struct net_device *dev); extern int dev_close(struct net_device *dev); |
0187bdfb0
|
1024 |
extern void dev_disable_lro(struct net_device *dev); |
1da177e4c
|
1025 1026 |
extern int dev_queue_xmit(struct sk_buff *skb); extern int register_netdevice(struct net_device *dev); |
22f8cde5b
|
1027 |
extern void unregister_netdevice(struct net_device *dev); |
1da177e4c
|
1028 1029 1030 1031 |
extern void free_netdev(struct net_device *dev); extern void synchronize_net(void); extern int register_netdevice_notifier(struct notifier_block *nb); extern int unregister_netdevice_notifier(struct notifier_block *nb); |
ad7379d49
|
1032 |
extern int call_netdevice_notifiers(unsigned long val, struct net_device *dev); |
881d966b4
|
1033 1034 |
extern struct net_device *dev_get_by_index(struct net *net, int ifindex); extern struct net_device *__dev_get_by_index(struct net *net, int ifindex); |
1da177e4c
|
1035 1036 1037 1038 |
extern int dev_restart(struct net_device *dev); #ifdef CONFIG_NETPOLL_TRAP extern int netpoll_trap(void); #endif |
0c4e85813
|
1039 1040 |
static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev, unsigned short type, |
3b04ddde0
|
1041 1042 |
const void *daddr, const void *saddr, unsigned len) |
0c4e85813
|
1043 |
{ |
f1ecfd5d3
|
1044 |
if (!dev->header_ops || !dev->header_ops->create) |
0c4e85813
|
1045 |
return 0; |
3b04ddde0
|
1046 1047 |
return dev->header_ops->create(skb, dev, type, daddr, saddr, len); |
0c4e85813
|
1048 |
} |
b95cce357
|
1049 1050 1051 1052 |
static inline int dev_parse_header(const struct sk_buff *skb, unsigned char *haddr) { const struct net_device *dev = skb->dev; |
1b83336bb
|
1053 |
if (!dev->header_ops || !dev->header_ops->parse) |
b95cce357
|
1054 |
return 0; |
3b04ddde0
|
1055 |
return dev->header_ops->parse(skb, haddr); |
b95cce357
|
1056 |
} |
1da177e4c
|
1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 |
typedef int gifconf_func_t(struct net_device * dev, char __user * bufptr, int len); extern int register_gifconf(unsigned int family, gifconf_func_t * gifconf); static inline int unregister_gifconf(unsigned int family) { return register_gifconf(family, NULL); } /* * Incoming packets are placed on per-cpu queues so that * no locking is needed. */ |
1da177e4c
|
1068 1069 |
struct softnet_data { |
37437bb2e
|
1070 |
struct Qdisc *output_queue; |
1da177e4c
|
1071 1072 |
struct sk_buff_head input_pkt_queue; struct list_head poll_list; |
1da177e4c
|
1073 |
struct sk_buff *completion_queue; |
bea3348ee
|
1074 |
struct napi_struct backlog; |
db2173348
|
1075 1076 1077 |
#ifdef CONFIG_NET_DMA struct dma_chan *net_dma; #endif |
1da177e4c
|
1078 1079 1080 1081 1082 |
}; DECLARE_PER_CPU(struct softnet_data,softnet_data); #define HAVE_NETIF_QUEUE |
37437bb2e
|
1083 |
extern void __netif_schedule(struct Qdisc *q); |
1da177e4c
|
1084 |
|
86d804e10
|
1085 |
static inline void netif_schedule_queue(struct netdev_queue *txq) |
1da177e4c
|
1086 |
{ |
79d16385c
|
1087 |
if (!test_bit(__QUEUE_STATE_XOFF, &txq->state)) |
37437bb2e
|
1088 |
__netif_schedule(txq->qdisc); |
86d804e10
|
1089 |
} |
fd2ea0a79
|
1090 1091 1092 1093 1094 1095 1096 |
static inline void netif_tx_schedule_all(struct net_device *dev) { unsigned int i; for (i = 0; i < dev->num_tx_queues; i++) netif_schedule_queue(netdev_get_tx_queue(dev, i)); } |
d29f749e2
|
1097 1098 1099 1100 |
static inline void netif_tx_start_queue(struct netdev_queue *dev_queue) { clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state); } |
bea3348ee
|
1101 1102 1103 1104 1105 1106 |
/** * netif_start_queue - allow transmit * @dev: network device * * Allow upper layers to call the device hard_start_xmit routine. */ |
1da177e4c
|
1107 1108 |
static inline void netif_start_queue(struct net_device *dev) { |
e8a0464cc
|
1109 |
netif_tx_start_queue(netdev_get_tx_queue(dev, 0)); |
1da177e4c
|
1110 |
} |
fd2ea0a79
|
1111 1112 1113 1114 1115 1116 1117 1118 1119 |
static inline void netif_tx_start_all_queues(struct net_device *dev) { unsigned int i; for (i = 0; i < dev->num_tx_queues; i++) { struct netdev_queue *txq = netdev_get_tx_queue(dev, i); netif_tx_start_queue(txq); } } |
79d16385c
|
1120 |
static inline void netif_tx_wake_queue(struct netdev_queue *dev_queue) |
1da177e4c
|
1121 1122 |
{ #ifdef CONFIG_NETPOLL_TRAP |
5f286e113
|
1123 |
if (netpoll_trap()) { |
79d16385c
|
1124 |
clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state); |
1da177e4c
|
1125 |
return; |
5f286e113
|
1126 |
} |
1da177e4c
|
1127 |
#endif |
79d16385c
|
1128 |
if (test_and_clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state)) |
37437bb2e
|
1129 |
__netif_schedule(dev_queue->qdisc); |
79d16385c
|
1130 |
} |
d29f749e2
|
1131 1132 1133 1134 1135 1136 1137 |
/** * netif_wake_queue - restart transmit * @dev: network device * * Allow upper layers to call the device hard_start_xmit routine. * Used for flow control when transmit resources are available. */ |
79d16385c
|
1138 1139 |
static inline void netif_wake_queue(struct net_device *dev) { |
e8a0464cc
|
1140 |
netif_tx_wake_queue(netdev_get_tx_queue(dev, 0)); |
1da177e4c
|
1141 |
} |
fd2ea0a79
|
1142 1143 1144 1145 1146 1147 1148 1149 1150 |
static inline void netif_tx_wake_all_queues(struct net_device *dev) { unsigned int i; for (i = 0; i < dev->num_tx_queues; i++) { struct netdev_queue *txq = netdev_get_tx_queue(dev, i); netif_tx_wake_queue(txq); } } |
d29f749e2
|
1151 1152 1153 1154 |
static inline void netif_tx_stop_queue(struct netdev_queue *dev_queue) { set_bit(__QUEUE_STATE_XOFF, &dev_queue->state); } |
bea3348ee
|
1155 1156 1157 1158 1159 1160 1161 |
/** * netif_stop_queue - stop transmitted packets * @dev: network device * * Stop upper layers calling the device hard_start_xmit routine. * Used for flow control when transmit resources are unavailable. */ |
1da177e4c
|
1162 1163 |
static inline void netif_stop_queue(struct net_device *dev) { |
e8a0464cc
|
1164 |
netif_tx_stop_queue(netdev_get_tx_queue(dev, 0)); |
1da177e4c
|
1165 |
} |
fd2ea0a79
|
1166 1167 1168 1169 1170 1171 1172 1173 1174 |
static inline void netif_tx_stop_all_queues(struct net_device *dev) { unsigned int i; for (i = 0; i < dev->num_tx_queues; i++) { struct netdev_queue *txq = netdev_get_tx_queue(dev, i); netif_tx_stop_queue(txq); } } |
d29f749e2
|
1175 1176 1177 1178 |
static inline int netif_tx_queue_stopped(const struct netdev_queue *dev_queue) { return test_bit(__QUEUE_STATE_XOFF, &dev_queue->state); } |
bea3348ee
|
1179 1180 1181 1182 1183 1184 |
/** * netif_queue_stopped - test if transmit queue is flowblocked * @dev: network device * * Test if transmit queue on device is currently unable to send. */ |
1da177e4c
|
1185 1186 |
static inline int netif_queue_stopped(const struct net_device *dev) { |
e8a0464cc
|
1187 |
return netif_tx_queue_stopped(netdev_get_tx_queue(dev, 0)); |
1da177e4c
|
1188 |
} |
c3f26a269
|
1189 1190 1191 1192 |
static inline int netif_tx_queue_frozen(const struct netdev_queue *dev_queue) { return test_bit(__QUEUE_STATE_FROZEN, &dev_queue->state); } |
bea3348ee
|
1193 1194 1195 1196 1197 1198 |
/** * netif_running - test if up * @dev: network device * * Test if the device has been brought up. */ |
1da177e4c
|
1199 1200 1201 1202 |
static inline int netif_running(const struct net_device *dev) { return test_bit(__LINK_STATE_START, &dev->state); } |
f25f4e448
|
1203 1204 1205 1206 1207 1208 |
/* * Routines to manage the subqueues on a device. We only need start * stop, and a check if it's stopped. All other device management is * done at the overall netdevice level. * Also test the device if we're multiqueue. */ |
bea3348ee
|
1209 1210 1211 1212 1213 1214 1215 1216 |
/** * netif_start_subqueue - allow sending packets on subqueue * @dev: network device * @queue_index: sub queue index * * Start individual transmit queue of a device with multiple transmit queues. */ |
f25f4e448
|
1217 1218 |
static inline void netif_start_subqueue(struct net_device *dev, u16 queue_index) { |
fd2ea0a79
|
1219 1220 |
struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index); clear_bit(__QUEUE_STATE_XOFF, &txq->state); |
f25f4e448
|
1221 |
} |
bea3348ee
|
1222 1223 1224 1225 1226 1227 1228 |
/** * netif_stop_subqueue - stop sending packets on subqueue * @dev: network device * @queue_index: sub queue index * * Stop individual transmit queue of a device with multiple transmit queues. */ |
f25f4e448
|
1229 1230 |
static inline void netif_stop_subqueue(struct net_device *dev, u16 queue_index) { |
fd2ea0a79
|
1231 |
struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index); |
f25f4e448
|
1232 1233 1234 1235 |
#ifdef CONFIG_NETPOLL_TRAP if (netpoll_trap()) return; #endif |
fd2ea0a79
|
1236 |
set_bit(__QUEUE_STATE_XOFF, &txq->state); |
f25f4e448
|
1237 |
} |
bea3348ee
|
1238 1239 1240 1241 1242 1243 1244 |
/** * netif_subqueue_stopped - test status of subqueue * @dev: network device * @queue_index: sub queue index * * Check individual transmit queue of a device with multiple transmit queues. */ |
668f895a8
|
1245 |
static inline int __netif_subqueue_stopped(const struct net_device *dev, |
f25f4e448
|
1246 1247 |
u16 queue_index) { |
fd2ea0a79
|
1248 1249 |
struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index); return test_bit(__QUEUE_STATE_XOFF, &txq->state); |
f25f4e448
|
1250 |
} |
668f895a8
|
1251 1252 1253 1254 1255 |
static inline int netif_subqueue_stopped(const struct net_device *dev, struct sk_buff *skb) { return __netif_subqueue_stopped(dev, skb_get_queue_mapping(skb)); } |
bea3348ee
|
1256 1257 1258 1259 1260 1261 1262 1263 |
/** * netif_wake_subqueue - allow sending packets on subqueue * @dev: network device * @queue_index: sub queue index * * Resume individual transmit queue of a device with multiple transmit queues. */ |
f25f4e448
|
1264 1265 |
static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index) { |
fd2ea0a79
|
1266 |
struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index); |
f25f4e448
|
1267 1268 1269 1270 |
#ifdef CONFIG_NETPOLL_TRAP if (netpoll_trap()) return; #endif |
fd2ea0a79
|
1271 |
if (test_and_clear_bit(__QUEUE_STATE_XOFF, &txq->state)) |
37437bb2e
|
1272 |
__netif_schedule(txq->qdisc); |
f25f4e448
|
1273 |
} |
bea3348ee
|
1274 1275 1276 1277 1278 |
/** * netif_is_multiqueue - test if device has multiple transmit queues * @dev: network device * * Check if device has multiple transmit queues |
bea3348ee
|
1279 |
*/ |
f25f4e448
|
1280 1281 |
static inline int netif_is_multiqueue(const struct net_device *dev) { |
09e83b5d7
|
1282 |
return (dev->num_tx_queues > 1); |
f25f4e448
|
1283 |
} |
1da177e4c
|
1284 1285 |
/* Use this variant when it is known for sure that it |
0ef473092
|
1286 1287 |
* is executing from hardware interrupt context or with hardware interrupts * disabled. |
1da177e4c
|
1288 |
*/ |
bea3348ee
|
1289 |
extern void dev_kfree_skb_irq(struct sk_buff *skb); |
1da177e4c
|
1290 1291 |
/* Use this variant in places where it could be invoked |
0ef473092
|
1292 1293 |
* from either hardware interrupt or other context, with hardware interrupts * either disabled or enabled. |
1da177e4c
|
1294 |
*/ |
56079431b
|
1295 |
extern void dev_kfree_skb_any(struct sk_buff *skb); |
1da177e4c
|
1296 1297 1298 1299 1300 1301 |
#define HAVE_NETIF_RX 1 extern int netif_rx(struct sk_buff *skb); extern int netif_rx_ni(struct sk_buff *skb); #define HAVE_NETIF_RECEIVE_SKB 1 extern int netif_receive_skb(struct sk_buff *skb); |
d565b0a1a
|
1302 1303 1304 |
extern void napi_gro_flush(struct napi_struct *napi); extern int napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb); |
5d38a079c
|
1305 1306 |
extern int napi_gro_frags(struct napi_struct *napi, struct napi_gro_fraginfo *info); |
bc1d0411b
|
1307 |
extern void netif_nit_deliver(struct sk_buff *skb); |
c2373ee98
|
1308 |
extern int dev_valid_name(const char *name); |
881d966b4
|
1309 1310 |
extern int dev_ioctl(struct net *net, unsigned int cmd, void __user *); extern int dev_ethtool(struct net *net, struct ifreq *); |
1da177e4c
|
1311 1312 |
extern unsigned dev_get_flags(const struct net_device *); extern int dev_change_flags(struct net_device *, unsigned); |
cf04a4c76
|
1313 |
extern int dev_change_name(struct net_device *, const char *); |
0b815a1a6
|
1314 |
extern int dev_set_alias(struct net_device *, const char *, size_t); |
ce286d327
|
1315 1316 |
extern int dev_change_net_namespace(struct net_device *, struct net *, const char *); |
1da177e4c
|
1317 1318 1319 |
extern int dev_set_mtu(struct net_device *, int); extern int dev_set_mac_address(struct net_device *, struct sockaddr *); |
f6a78bfcb
|
1320 |
extern int dev_hard_start_xmit(struct sk_buff *skb, |
fd2ea0a79
|
1321 1322 |
struct net_device *dev, struct netdev_queue *txq); |
1da177e4c
|
1323 |
|
20380731b
|
1324 |
extern int netdev_budget; |
1da177e4c
|
1325 1326 1327 |
/* Called by rtnetlink.c:rtnl_unlock() */ extern void netdev_run_todo(void); |
bea3348ee
|
1328 1329 1330 1331 |
/** * dev_put - release reference to device * @dev: network device * |
9ef4429b3
|
1332 |
* Release reference to device to allow it to be freed. |
bea3348ee
|
1333 |
*/ |
1da177e4c
|
1334 1335 1336 1337 |
static inline void dev_put(struct net_device *dev) { atomic_dec(&dev->refcnt); } |
bea3348ee
|
1338 1339 1340 1341 |
/** * dev_hold - get reference to device * @dev: network device * |
9ef4429b3
|
1342 |
* Hold reference to device to keep it from being freed. |
bea3348ee
|
1343 |
*/ |
153330618
|
1344 1345 1346 1347 |
static inline void dev_hold(struct net_device *dev) { atomic_inc(&dev->refcnt); } |
1da177e4c
|
1348 1349 1350 1351 |
/* Carrier loss detection, dial on demand. The functions netif_carrier_on * and _off may be called from IRQ context, but it is caller * who is responsible for serialization of these calls. |
b00055aac
|
1352 1353 1354 1355 |
* * The name carrier is inappropriate, these functions should really be * called netif_lowerlayer_*() because they represent the state of any * kind of lower layer not just hardware media. |
1da177e4c
|
1356 1357 1358 |
*/ extern void linkwatch_fire_event(struct net_device *dev); |
bea3348ee
|
1359 1360 1361 1362 1363 1364 |
/** * netif_carrier_ok - test if carrier present * @dev: network device * * Check if carrier is present on device */ |
1da177e4c
|
1365 1366 1367 1368 1369 1370 |
static inline int netif_carrier_ok(const struct net_device *dev) { return !test_bit(__LINK_STATE_NOCARRIER, &dev->state); } extern void __netdev_watchdog_up(struct net_device *dev); |
0a242efc4
|
1371 |
extern void netif_carrier_on(struct net_device *dev); |
1da177e4c
|
1372 |
|
0a242efc4
|
1373 |
extern void netif_carrier_off(struct net_device *dev); |
1da177e4c
|
1374 |
|
bea3348ee
|
1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 |
/** * netif_dormant_on - mark device as dormant. * @dev: network device * * Mark device as dormant (as per RFC2863). * * The dormant state indicates that the relevant interface is not * actually in a condition to pass packets (i.e., it is not 'up') but is * in a "pending" state, waiting for some external event. For "on- * demand" interfaces, this new state identifies the situation where the * interface is waiting for events to place it in the up state. * */ |
b00055aac
|
1388 1389 1390 1391 1392 |
static inline void netif_dormant_on(struct net_device *dev) { if (!test_and_set_bit(__LINK_STATE_DORMANT, &dev->state)) linkwatch_fire_event(dev); } |
bea3348ee
|
1393 1394 1395 1396 1397 1398 |
/** * netif_dormant_off - set device as not dormant. * @dev: network device * * Device is not in dormant state. */ |
b00055aac
|
1399 1400 1401 1402 1403 |
static inline void netif_dormant_off(struct net_device *dev) { if (test_and_clear_bit(__LINK_STATE_DORMANT, &dev->state)) linkwatch_fire_event(dev); } |
bea3348ee
|
1404 1405 1406 1407 1408 1409 |
/** * netif_dormant - test if carrier present * @dev: network device * * Check if carrier is present on device */ |
b00055aac
|
1410 1411 1412 1413 |
static inline int netif_dormant(const struct net_device *dev) { return test_bit(__LINK_STATE_DORMANT, &dev->state); } |
bea3348ee
|
1414 1415 1416 1417 1418 1419 |
/** * netif_oper_up - test if device is operational * @dev: network device * * Check if carrier is operational */ |
b00055aac
|
1420 1421 1422 1423 |
static inline int netif_oper_up(const struct net_device *dev) { return (dev->operstate == IF_OPER_UP || dev->operstate == IF_OPER_UNKNOWN /* backward compat */); } |
bea3348ee
|
1424 1425 1426 1427 1428 1429 |
/** * netif_device_present - is device available or removed * @dev: network device * * Check if device has not been removed from system. */ |
1da177e4c
|
1430 1431 1432 1433 |
static inline int netif_device_present(struct net_device *dev) { return test_bit(__LINK_STATE_PRESENT, &dev->state); } |
56079431b
|
1434 |
extern void netif_device_detach(struct net_device *dev); |
1da177e4c
|
1435 |
|
56079431b
|
1436 |
extern void netif_device_attach(struct net_device *dev); |
1da177e4c
|
1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 |
/* * Network interface message level settings */ #define HAVE_NETIF_MSG 1 enum { NETIF_MSG_DRV = 0x0001, NETIF_MSG_PROBE = 0x0002, NETIF_MSG_LINK = 0x0004, NETIF_MSG_TIMER = 0x0008, NETIF_MSG_IFDOWN = 0x0010, NETIF_MSG_IFUP = 0x0020, NETIF_MSG_RX_ERR = 0x0040, NETIF_MSG_TX_ERR = 0x0080, NETIF_MSG_TX_QUEUED = 0x0100, NETIF_MSG_INTR = 0x0200, NETIF_MSG_TX_DONE = 0x0400, NETIF_MSG_RX_STATUS = 0x0800, NETIF_MSG_PKTDATA = 0x1000, NETIF_MSG_HW = 0x2000, NETIF_MSG_WOL = 0x4000, }; #define netif_msg_drv(p) ((p)->msg_enable & NETIF_MSG_DRV) #define netif_msg_probe(p) ((p)->msg_enable & NETIF_MSG_PROBE) #define netif_msg_link(p) ((p)->msg_enable & NETIF_MSG_LINK) #define netif_msg_timer(p) ((p)->msg_enable & NETIF_MSG_TIMER) #define netif_msg_ifdown(p) ((p)->msg_enable & NETIF_MSG_IFDOWN) #define netif_msg_ifup(p) ((p)->msg_enable & NETIF_MSG_IFUP) #define netif_msg_rx_err(p) ((p)->msg_enable & NETIF_MSG_RX_ERR) #define netif_msg_tx_err(p) ((p)->msg_enable & NETIF_MSG_TX_ERR) #define netif_msg_tx_queued(p) ((p)->msg_enable & NETIF_MSG_TX_QUEUED) #define netif_msg_intr(p) ((p)->msg_enable & NETIF_MSG_INTR) #define netif_msg_tx_done(p) ((p)->msg_enable & NETIF_MSG_TX_DONE) #define netif_msg_rx_status(p) ((p)->msg_enable & NETIF_MSG_RX_STATUS) #define netif_msg_pktdata(p) ((p)->msg_enable & NETIF_MSG_PKTDATA) #define netif_msg_hw(p) ((p)->msg_enable & NETIF_MSG_HW) #define netif_msg_wol(p) ((p)->msg_enable & NETIF_MSG_WOL) static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits) { /* use default */ if (debug_value < 0 || debug_value >= (sizeof(u32) * 8)) return default_msg_enable_bits; if (debug_value == 0) /* no output */ return 0; /* set low N bits */ return (1 << debug_value) - 1; } |
0a1225769
|
1487 |
/* Test if receive needs to be scheduled but only if up */ |
908a7a16b
|
1488 |
static inline int netif_rx_schedule_prep(struct napi_struct *napi) |
1da177e4c
|
1489 |
{ |
a0a46196c
|
1490 |
return napi_schedule_prep(napi); |
1da177e4c
|
1491 1492 1493 1494 1495 |
} /* Add interface to tail of rx poll list. This assumes that _prep has * already been called and returned 1. */ |
908a7a16b
|
1496 |
static inline void __netif_rx_schedule(struct napi_struct *napi) |
bea3348ee
|
1497 |
{ |
bea3348ee
|
1498 1499 |
__napi_schedule(napi); } |
1da177e4c
|
1500 1501 |
/* Try to reschedule poll. Called by irq handler. */ |
908a7a16b
|
1502 |
static inline void netif_rx_schedule(struct napi_struct *napi) |
1da177e4c
|
1503 |
{ |
908a7a16b
|
1504 1505 |
if (netif_rx_schedule_prep(napi)) __netif_rx_schedule(napi); |
1da177e4c
|
1506 |
} |
bea3348ee
|
1507 |
/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete(). */ |
908a7a16b
|
1508 |
static inline int netif_rx_reschedule(struct napi_struct *napi) |
1da177e4c
|
1509 |
{ |
bea3348ee
|
1510 |
if (napi_schedule_prep(napi)) { |
908a7a16b
|
1511 |
__netif_rx_schedule(napi); |
1da177e4c
|
1512 1513 1514 1515 |
return 1; } return 0; } |
b0ba66671
|
1516 1517 1518 |
/* same as netif_rx_complete, except that local_irq_save(flags) * has already been issued */ |
908a7a16b
|
1519 |
static inline void __netif_rx_complete(struct napi_struct *napi) |
b0ba66671
|
1520 |
{ |
bea3348ee
|
1521 |
__napi_complete(napi); |
b0ba66671
|
1522 |
} |
1da177e4c
|
1523 1524 1525 1526 1527 |
/* Remove interface from poll list: it must be in the poll list * on current cpu. This primitive is called by dev->poll(), when * it completes the work. The device cannot be out of poll list at this * moment, it is BUG(). */ |
908a7a16b
|
1528 |
static inline void netif_rx_complete(struct napi_struct *napi) |
1da177e4c
|
1529 |
{ |
d565b0a1a
|
1530 |
napi_complete(napi); |
1da177e4c
|
1531 |
} |
c773e847e
|
1532 |
static inline void __netif_tx_lock(struct netdev_queue *txq, int cpu) |
932ff279a
|
1533 |
{ |
c773e847e
|
1534 1535 |
spin_lock(&txq->_xmit_lock); txq->xmit_lock_owner = cpu; |
22dd74950
|
1536 |
} |
fd2ea0a79
|
1537 1538 1539 1540 1541 |
static inline void __netif_tx_lock_bh(struct netdev_queue *txq) { spin_lock_bh(&txq->_xmit_lock); txq->xmit_lock_owner = smp_processor_id(); } |
c3f26a269
|
1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 |
static inline int __netif_tx_trylock(struct netdev_queue *txq) { int ok = spin_trylock(&txq->_xmit_lock); if (likely(ok)) txq->xmit_lock_owner = smp_processor_id(); return ok; } static inline void __netif_tx_unlock(struct netdev_queue *txq) { txq->xmit_lock_owner = -1; spin_unlock(&txq->_xmit_lock); } static inline void __netif_tx_unlock_bh(struct netdev_queue *txq) { txq->xmit_lock_owner = -1; spin_unlock_bh(&txq->_xmit_lock); } |
d29f749e2
|
1561 1562 1563 |
/** * netif_tx_lock - grab network device transmit lock * @dev: network device |
d29f749e2
|
1564 1565 1566 |
* * Get network device transmit lock */ |
22dd74950
|
1567 1568 |
static inline void netif_tx_lock(struct net_device *dev) { |
e8a0464cc
|
1569 |
unsigned int i; |
c3f26a269
|
1570 |
int cpu; |
c773e847e
|
1571 |
|
c3f26a269
|
1572 1573 |
spin_lock(&dev->tx_global_lock); cpu = smp_processor_id(); |
e8a0464cc
|
1574 1575 |
for (i = 0; i < dev->num_tx_queues; i++) { struct netdev_queue *txq = netdev_get_tx_queue(dev, i); |
c3f26a269
|
1576 1577 1578 1579 1580 1581 1582 |
/* We are the only thread of execution doing a * freeze, but we have to grab the _xmit_lock in * order to synchronize with threads which are in * the ->hard_start_xmit() handler and already * checked the frozen bit. */ |
e8a0464cc
|
1583 |
__netif_tx_lock(txq, cpu); |
c3f26a269
|
1584 1585 |
set_bit(__QUEUE_STATE_FROZEN, &txq->state); __netif_tx_unlock(txq); |
e8a0464cc
|
1586 |
} |
932ff279a
|
1587 1588 1589 1590 |
} static inline void netif_tx_lock_bh(struct net_device *dev) { |
e8a0464cc
|
1591 1592 |
local_bh_disable(); netif_tx_lock(dev); |
932ff279a
|
1593 |
} |
932ff279a
|
1594 1595 |
static inline void netif_tx_unlock(struct net_device *dev) { |
e8a0464cc
|
1596 1597 1598 1599 |
unsigned int i; for (i = 0; i < dev->num_tx_queues; i++) { struct netdev_queue *txq = netdev_get_tx_queue(dev, i); |
c773e847e
|
1600 |
|
c3f26a269
|
1601 1602 1603 1604 1605 1606 1607 1608 1609 |
/* No need to grab the _xmit_lock here. If the * queue is not stopped for another reason, we * force a schedule. */ clear_bit(__QUEUE_STATE_FROZEN, &txq->state); if (!test_bit(__QUEUE_STATE_XOFF, &txq->state)) __netif_schedule(txq->qdisc); } spin_unlock(&dev->tx_global_lock); |
932ff279a
|
1610 1611 1612 1613 |
} static inline void netif_tx_unlock_bh(struct net_device *dev) { |
e8a0464cc
|
1614 1615 |
netif_tx_unlock(dev); local_bh_enable(); |
932ff279a
|
1616 |
} |
c773e847e
|
1617 |
#define HARD_TX_LOCK(dev, txq, cpu) { \ |
22dd74950
|
1618 |
if ((dev->features & NETIF_F_LLTX) == 0) { \ |
c773e847e
|
1619 |
__netif_tx_lock(txq, cpu); \ |
22dd74950
|
1620 1621 |
} \ } |
c773e847e
|
1622 |
#define HARD_TX_UNLOCK(dev, txq) { \ |
22dd74950
|
1623 |
if ((dev->features & NETIF_F_LLTX) == 0) { \ |
c773e847e
|
1624 |
__netif_tx_unlock(txq); \ |
22dd74950
|
1625 1626 |
} \ } |
1da177e4c
|
1627 1628 |
static inline void netif_tx_disable(struct net_device *dev) { |
fd2ea0a79
|
1629 |
unsigned int i; |
c3f26a269
|
1630 |
int cpu; |
fd2ea0a79
|
1631 |
|
c3f26a269
|
1632 1633 |
local_bh_disable(); cpu = smp_processor_id(); |
fd2ea0a79
|
1634 1635 |
for (i = 0; i < dev->num_tx_queues; i++) { struct netdev_queue *txq = netdev_get_tx_queue(dev, i); |
c3f26a269
|
1636 1637 |
__netif_tx_lock(txq, cpu); |
fd2ea0a79
|
1638 |
netif_tx_stop_queue(txq); |
c3f26a269
|
1639 |
__netif_tx_unlock(txq); |
fd2ea0a79
|
1640 |
} |
c3f26a269
|
1641 |
local_bh_enable(); |
1da177e4c
|
1642 |
} |
e308a5d80
|
1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 |
static inline void netif_addr_lock(struct net_device *dev) { spin_lock(&dev->addr_list_lock); } static inline void netif_addr_lock_bh(struct net_device *dev) { spin_lock_bh(&dev->addr_list_lock); } static inline void netif_addr_unlock(struct net_device *dev) { spin_unlock(&dev->addr_list_lock); } static inline void netif_addr_unlock_bh(struct net_device *dev) { spin_unlock_bh(&dev->addr_list_lock); } |
1da177e4c
|
1662 1663 1664 1665 1666 |
/* These functions live elsewhere (drivers/net/net_init.c, but related) */ extern void ether_setup(struct net_device *dev); /* Support for loadable net-drivers */ |
f25f4e448
|
1667 1668 1669 1670 1671 |
extern struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name, void (*setup)(struct net_device *), unsigned int queue_count); #define alloc_netdev(sizeof_priv, name, setup) \ alloc_netdev_mq(sizeof_priv, name, setup, 1) |
1da177e4c
|
1672 1673 |
extern int register_netdev(struct net_device *dev); extern void unregister_netdev(struct net_device *dev); |
4417da668
|
1674 1675 1676 1677 1678 |
/* Functions used for secondary unicast and multicast support */ extern void dev_set_rx_mode(struct net_device *dev); extern void __dev_set_rx_mode(struct net_device *dev); extern int dev_unicast_delete(struct net_device *dev, void *addr, int alen); extern int dev_unicast_add(struct net_device *dev, void *addr, int alen); |
e83a2ea85
|
1679 1680 |
extern int dev_unicast_sync(struct net_device *to, struct net_device *from); extern void dev_unicast_unsync(struct net_device *to, struct net_device *from); |
1da177e4c
|
1681 1682 |
extern int dev_mc_delete(struct net_device *dev, void *addr, int alen, int all); extern int dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly); |
a0a400d79
|
1683 1684 |
extern int dev_mc_sync(struct net_device *to, struct net_device *from); extern void dev_mc_unsync(struct net_device *to, struct net_device *from); |
61cbc2fca
|
1685 1686 |
extern int __dev_addr_delete(struct dev_addr_list **list, int *count, void *addr, int alen, int all); extern int __dev_addr_add(struct dev_addr_list **list, int *count, void *addr, int alen, int newonly); |
e83a2ea85
|
1687 1688 |
extern int __dev_addr_sync(struct dev_addr_list **to, int *to_count, struct dev_addr_list **from, int *from_count); extern void __dev_addr_unsync(struct dev_addr_list **to, int *to_count, struct dev_addr_list **from, int *from_count); |
dad9b335c
|
1689 1690 |
extern int dev_set_promiscuity(struct net_device *dev, int inc); extern int dev_set_allmulti(struct net_device *dev, int inc); |
1da177e4c
|
1691 |
extern void netdev_state_change(struct net_device *dev); |
c1da4ac75
|
1692 |
extern void netdev_bonding_change(struct net_device *dev); |
d8a33ac43
|
1693 |
extern void netdev_features_change(struct net_device *dev); |
1da177e4c
|
1694 |
/* Load a device via the kmod */ |
881d966b4
|
1695 |
extern void dev_load(struct net *net, const char *name); |
1da177e4c
|
1696 |
extern void dev_mcast_init(void); |
eeda3fd64
|
1697 |
extern const struct net_device_stats *dev_get_stats(struct net_device *dev); |
1da177e4c
|
1698 1699 1700 |
extern int netdev_max_backlog; extern int weight_p; extern int netdev_set_master(struct net_device *dev, struct net_device *master); |
84fa7933a
|
1701 |
extern int skb_checksum_help(struct sk_buff *skb); |
576a30eb6
|
1702 |
extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features); |
fb286bb29
|
1703 1704 1705 1706 1707 1708 1709 |
#ifdef CONFIG_BUG extern void netdev_rx_csum_fault(struct net_device *dev); #else static inline void netdev_rx_csum_fault(struct net_device *dev) { } #endif |
1da177e4c
|
1710 1711 1712 |
/* rx skb timestamps */ extern void net_enable_timestamp(void); extern void net_disable_timestamp(void); |
20380731b
|
1713 1714 1715 1716 1717 |
#ifdef CONFIG_PROC_FS extern void *dev_seq_start(struct seq_file *seq, loff_t *pos); extern void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos); extern void dev_seq_stop(struct seq_file *seq, void *v); #endif |
b8a9787ed
|
1718 1719 |
extern int netdev_class_create_file(struct class_attribute *class_attr); extern void netdev_class_remove_file(struct class_attribute *class_attr); |
cf04a4c76
|
1720 |
extern char *netdev_drivername(const struct net_device *dev, char *buffer, int len); |
6579e57b3
|
1721 |
|
20380731b
|
1722 |
extern void linkwatch_run_queue(void); |
b63365a2d
|
1723 1724 1725 |
unsigned long netdev_increment_features(unsigned long all, unsigned long one, unsigned long mask); unsigned long netdev_fix_features(unsigned long features, const char *name); |
7f353bf29
|
1726 |
|
bcd761111
|
1727 |
static inline int net_gso_ok(int features, int gso_type) |
576a30eb6
|
1728 |
{ |
bcd761111
|
1729 |
int feature = gso_type << NETIF_F_GSO_SHIFT; |
d6b4991ad
|
1730 |
return (features & feature) == feature; |
576a30eb6
|
1731 |
} |
bcd761111
|
1732 1733 |
static inline int skb_gso_ok(struct sk_buff *skb, int features) { |
a430a43d0
|
1734 |
return net_gso_ok(features, skb_shinfo(skb)->gso_type); |
bcd761111
|
1735 |
} |
7967168ce
|
1736 1737 |
static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb) { |
a430a43d0
|
1738 1739 |
return skb_is_gso(skb) && (!skb_gso_ok(skb, dev->features) || |
1a881f27c
|
1740 1741 |
(skb_shinfo(skb)->frag_list && !(dev->features & NETIF_F_FRAGLIST)) || |
84fa7933a
|
1742 |
unlikely(skb->ip_summed != CHECKSUM_PARTIAL)); |
7967168ce
|
1743 |
} |
82cc1a7a5
|
1744 1745 1746 1747 1748 |
static inline void netif_set_gso_max_size(struct net_device *dev, unsigned int size) { dev->gso_max_size = size; } |
7ea49ed73
|
1749 |
/* On bonding slaves other than the currently active slave, suppress |
f5b2b966f
|
1750 1751 |
* duplicates except for 802.3ad ETH_P_SLOW, alb non-mcast/bcast, and * ARP on active-backup slaves with arp_validate enabled. |
7ea49ed73
|
1752 1753 1754 1755 1756 |
*/ static inline int skb_bond_should_drop(struct sk_buff *skb) { struct net_device *dev = skb->dev; struct net_device *master = dev->master; |
6cf3f41e6
|
1757 1758 1759 1760 1761 1762 1763 |
if (master) { if (master->priv_flags & IFF_MASTER_ARPMON) dev->last_rx = jiffies; if (dev->priv_flags & IFF_SLAVE_INACTIVE) { if ((dev->priv_flags & IFF_SLAVE_NEEDARP) && skb->protocol == __constant_htons(ETH_P_ARP)) |
7ea49ed73
|
1764 |
return 0; |
7ea49ed73
|
1765 |
|
6cf3f41e6
|
1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 |
if (master->priv_flags & IFF_MASTER_ALB) { if (skb->pkt_type != PACKET_BROADCAST && skb->pkt_type != PACKET_MULTICAST) return 0; } if (master->priv_flags & IFF_MASTER_8023AD && skb->protocol == __constant_htons(ETH_P_SLOW)) return 0; return 1; } |
7ea49ed73
|
1777 1778 1779 |
} return 0; } |
505d4f73d
|
1780 |
extern struct pernet_operations __net_initdata loopback_net_ops; |
1da177e4c
|
1781 1782 1783 |
#endif /* __KERNEL__ */ #endif /* _LINUX_DEV_H */ |