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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
- *
- * Authors: Ross Biro
- * 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>
- * Alan Cox, <alan@lxorguk.ukuu.org.uk>
- * 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>
- #include <linux/if_link.h>
- #ifdef __KERNEL__
- #include <linux/pm_qos_params.h>
- #include <linux/timer.h>
- #include <linux/delay.h>
- #include <linux/mm.h>
- #include <asm/atomic.h>
- #include <asm/cache.h>
- #include <asm/byteorder.h>
- #include <linux/device.h>
- #include <linux/percpu.h>
- #include <linux/rculist.h>
- #include <linux/dmaengine.h>
- #include <linux/workqueue.h>
- #include <linux/ethtool.h>
- #include <net/net_namespace.h>
- #include <net/dsa.h>
- #ifdef CONFIG_DCB
- #include <net/dcbnl.h>
- #endif
- struct vlan_group;
- struct netpoll_info;
- struct phy_device;
- /* 802.11 specific */
- struct wireless_dev;
- /* 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() */
- /* hardware address assignment types */
- #define NET_ADDR_PERM 0 /* address is permanent (default) */
- #define NET_ADDR_RANDOM 1 /* address is generated randomly */
- #define NET_ADDR_STOLEN 2 /* address is stolen from other device */
- /* Backlog congestion levels */
- #define NET_RX_SUCCESS 0 /* keep 'em coming, baby */
- #define NET_RX_DROP 1 /* packet dropped */
- /*
- * Transmit return codes: transmit return codes originate from three different
- * namespaces:
- *
- * - qdisc return codes
- * - driver transmit return codes
- * - errno values
- *
- * Drivers are allowed to return any one of those in their hard_start_xmit()
- * function. Real network devices commonly used with qdiscs should only return
- * the driver transmit return codes though - when qdiscs are used, the actual
- * transmission happens asynchronously, so the value is not propagated to
- * higher layers. Virtual network devices transmit synchronously, in this case
- * the driver transmit return codes are consumed by dev_queue_xmit(), all
- * others are propagated to higher layers.
- */
- /* qdisc ->enqueue() return codes. */
- #define NET_XMIT_SUCCESS 0x00
- #define NET_XMIT_DROP 0x01 /* skb dropped */
- #define NET_XMIT_CN 0x02 /* congestion notification */
- #define NET_XMIT_POLICED 0x03 /* skb is shot by police */
- #define NET_XMIT_MASK 0x0f /* qdisc flags in net/sch_generic.h */
- /* 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))
- #define net_xmit_errno(e) ((e) != NET_XMIT_CN ? -ENOBUFS : 0)
- /* Driver transmit return codes */
- #define NETDEV_TX_MASK 0xf0
- enum netdev_tx {
- __NETDEV_TX_MIN = INT_MIN, /* make sure enum is signed */
- NETDEV_TX_OK = 0x00, /* driver took care of packet */
- NETDEV_TX_BUSY = 0x10, /* driver tx path was busy*/
- NETDEV_TX_LOCKED = 0x20, /* driver tx lock was already taken */
- };
- typedef enum netdev_tx netdev_tx_t;
- /*
- * Current order: NETDEV_TX_MASK > NET_XMIT_MASK >= 0 is significant;
- * hard_start_xmit() return < NET_XMIT_MASK means skb was consumed.
- */
- static inline bool dev_xmit_complete(int rc)
- {
- /*
- * Positive cases with an skb consumed by a driver:
- * - successful transmission (rc == NETDEV_TX_OK)
- * - error while transmitting (rc < 0)
- * - error while queueing to a different device (rc & NET_XMIT_MASK)
- */
- if (likely(rc < NET_XMIT_MASK))
- return true;
- return false;
- }
- #endif
- #define MAX_ADDR_LEN 32 /* Largest hardware address length */
- /* Initial net device group. All devices belong to group 0 by default. */
- #define INIT_NETDEV_GROUP 0
- #ifdef __KERNEL__
- /*
- * Compute the worst case header length according to the protocols
- * used.
- */
- #if defined(CONFIG_WLAN) || 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) || defined(CONFIG_TR_MODULE)
- # define LL_MAX_HEADER 48
- #else
- # define LL_MAX_HEADER 32
- #endif
- #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)
- #define MAX_HEADER LL_MAX_HEADER
- #else
- #define MAX_HEADER (LL_MAX_HEADER + 48)
- #endif
- /*
- * Old network device statistics. Fields are native words
- * (unsigned long) so they can be read and written atomically.
- */
- struct net_device_stats {
- unsigned long rx_packets;
- unsigned long tx_packets;
- unsigned long rx_bytes;
- unsigned long tx_bytes;
- unsigned long tx_bytes_succ; /*this is my new_variable*/
- unsigned long rx_errors;
- unsigned long tx_errors;
- unsigned long rx_dropped;
- unsigned long tx_dropped;
- unsigned long multicast;
- unsigned long collisions;
- unsigned long rx_length_errors;
- unsigned long rx_over_errors;
- unsigned long rx_crc_errors;
- unsigned long rx_frame_errors;
- unsigned long rx_fifo_errors;
- unsigned long rx_missed_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;
- unsigned long rx_compressed;
- unsigned long tx_compressed;
- };
- #endif /* __KERNEL__ */
- /* 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 netdev_hw_addr {
- struct list_head list;
- unsigned char addr[MAX_ADDR_LEN];
- unsigned char type;
- #define NETDEV_HW_ADDR_T_LAN 1
- #define NETDEV_HW_ADDR_T_SAN 2
- #define NETDEV_HW_ADDR_T_SLAVE 3
- #define NETDEV_HW_ADDR_T_UNICAST 4
- #define NETDEV_HW_ADDR_T_MULTICAST 5
- bool synced;
- bool global_use;
- int refcount;
- struct rcu_head rcu_head;
- };
- struct netdev_hw_addr_list {
- struct list_head list;
- int count;
- };
- #define netdev_hw_addr_list_count(l) ((l)->count)
- #define netdev_hw_addr_list_empty(l) (netdev_hw_addr_list_count(l) == 0)
- #define netdev_hw_addr_list_for_each(ha, l) \
- list_for_each_entry(ha, &(l)->list, list)
- #define netdev_uc_count(dev) netdev_hw_addr_list_count(&(dev)->uc)
- #define netdev_uc_empty(dev) netdev_hw_addr_list_empty(&(dev)->uc)
- #define netdev_for_each_uc_addr(ha, dev) \
- netdev_hw_addr_list_for_each(ha, &(dev)->uc)
- #define netdev_mc_count(dev) netdev_hw_addr_list_count(&(dev)->mc)
- #define netdev_mc_empty(dev) netdev_hw_addr_list_empty(&(dev)->mc)
- #define netdev_for_each_mc_addr(ha, dev) \
- netdev_hw_addr_list_for_each(ha, &(dev)->mc)
- struct hh_cache {
- struct hh_cache *hh_next; /* Next entry */
- atomic_t hh_refcnt; /* number of users */
- /*
- * 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
- * NOTE: For VLANs, this will be the
- * encapuslated type. --BLG
- */
- u16 hh_len; /* length of header */
- int (*hh_output)(struct sk_buff *skb);
- seqlock_t hh_lock;
- /* cached hardware header; allow for machine alignment needs. */
- #define HH_DATA_MOD 16
- #define HH_DATA_OFF(__len) \
- (HH_DATA_MOD - (((__len - 1) & (HH_DATA_MOD - 1)) + 1))
- #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)];
- };
- static inline void hh_cache_put(struct hh_cache *hh)
- {
- if (atomic_dec_and_test(&hh->hh_refcnt))
- kfree(hh);
- }
- /* 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.
- *
- * LL_ALLOCATED_SPACE also takes into account the tailroom the device
- * may need.
- */
- #define LL_RESERVED_SPACE(dev) \
- ((((dev)->hard_header_len+(dev)->needed_headroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
- #define LL_RESERVED_SPACE_EXTRA(dev,extra) \
- ((((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)
- 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);
- };
- /* 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 {
- __LINK_STATE_START,
- __LINK_STATE_PRESENT,
- __LINK_STATE_NOCARRIER,
- __LINK_STATE_LINKWATCH_PENDING,
- __LINK_STATE_DORMANT,
- };
- /*
- * 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
- extern int __init netdev_boot_setup(char *str);
- /*
- * 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;
- #endif
- unsigned int gro_count;
- struct net_device *dev;
- struct list_head dev_list;
- struct sk_buff *gro_list;
- struct sk_buff *skb;
- };
- enum {
- NAPI_STATE_SCHED, /* Poll is scheduled */
- NAPI_STATE_DISABLE, /* Disable pending */
- NAPI_STATE_NPSVC, /* Netpoll - don't dequeue from poll_list */
- };
- enum gro_result {
- GRO_MERGED,
- GRO_MERGED_FREE,
- GRO_HELD,
- GRO_NORMAL,
- GRO_DROP,
- };
- typedef enum gro_result gro_result_t;
- /*
- * enum rx_handler_result - Possible return values for rx_handlers.
- * @RX_HANDLER_CONSUMED: skb was consumed by rx_handler, do not process it
- * further.
- * @RX_HANDLER_ANOTHER: Do another round in receive path. This is indicated in
- * case skb->dev was changed by rx_handler.
- * @RX_HANDLER_EXACT: Force exact delivery, no wildcard.
- * @RX_HANDLER_PASS: Do nothing, passe the skb as if no rx_handler was called.
- *
- * rx_handlers are functions called from inside __netif_receive_skb(), to do
- * special processing of the skb, prior to delivery to protocol handlers.
- *
- * Currently, a net_device can only have a single rx_handler registered. Trying
- * to register a second rx_handler will return -EBUSY.
- *
- * To register a rx_handler on a net_device, use netdev_rx_handler_register().
- * To unregister a rx_handler on a net_device, use
- * netdev_rx_handler_unregister().
- *
- * Upon return, rx_handler is expected to tell __netif_receive_skb() what to
- * do with the skb.
- *
- * If the rx_handler consumed to skb in some way, it should return
- * RX_HANDLER_CONSUMED. This is appropriate when the rx_handler arranged for
- * the skb to be delivered in some other ways.
- *
- * If the rx_handler changed skb->dev, to divert the skb to another
- * net_device, it should return RX_HANDLER_ANOTHER. The rx_handler for the
- * new device will be called if it exists.
- *
- * If the rx_handler consider the skb should be ignored, it should return
- * RX_HANDLER_EXACT. The skb will only be delivered to protocol handlers that
- * are registred on exact device (ptype->dev == skb->dev).
- *
- * If the rx_handler didn't changed skb->dev, but want the skb to be normally
- * delivered, it should return RX_HANDLER_PASS.
- *
- * A device without a registered rx_handler will behave as if rx_handler
- * returned RX_HANDLER_PASS.
- */
- enum rx_handler_result {
- RX_HANDLER_CONSUMED,
- RX_HANDLER_ANOTHER,
- RX_HANDLER_EXACT,
- RX_HANDLER_PASS,
- };
- typedef enum rx_handler_result rx_handler_result_t;
- typedef rx_handler_result_t rx_handler_func_t(struct sk_buff **pskb);
- extern void __napi_schedule(struct napi_struct *n);
- static inline int napi_disable_pending(struct napi_struct *n)
- {
- return test_bit(NAPI_STATE_DISABLE, &n->state);
- }
- /**
- * 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
- * insure only one NAPI poll instance runs. We also make
- * sure there is no pending NAPI disable.
- */
- static inline int napi_schedule_prep(struct napi_struct *n)
- {
- return !napi_disable_pending(n) &&
- !test_and_set_bit(NAPI_STATE_SCHED, &n->state);
- }
- /**
- * 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);
- }
- /* 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;
- }
- /**
- * napi_complete - NAPI processing complete
- * @n: napi context
- *
- * Mark NAPI processing as complete.
- */
- extern void __napi_complete(struct napi_struct *n);
- extern void napi_complete(struct napi_struct *n);
- /**
- * 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)
- {
- set_bit(NAPI_STATE_DISABLE, &n->state);
- while (test_and_set_bit(NAPI_STATE_SCHED, &n->state))
- msleep(1);
- clear_bit(NAPI_STATE_DISABLE, &n->state);
- }
- /**
- * 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);
- }
- #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
- enum netdev_queue_state_t {
- __QUEUE_STATE_XOFF,
- __QUEUE_STATE_FROZEN,
- #define QUEUE_STATE_XOFF_OR_FROZEN ((1 << __QUEUE_STATE_XOFF) | \
- (1 << __QUEUE_STATE_FROZEN))
- };
- struct netdev_queue {
- /*
- * read mostly part
- */
- struct net_device *dev;
- struct Qdisc *qdisc;
- unsigned long state;
- struct Qdisc *qdisc_sleeping;
- #ifdef CONFIG_RPS
- struct kobject kobj;
- #endif
- #if defined(CONFIG_XPS) && defined(CONFIG_NUMA)
- int numa_node;
- #endif
- /*
- * write mostly part
- */
- spinlock_t _xmit_lock ____cacheline_aligned_in_smp;
- int xmit_lock_owner;
- /*
- * please use this field instead of dev->trans_start
- */
- unsigned long trans_start;
- } ____cacheline_aligned_in_smp;
- static inline int netdev_queue_numa_node_read(const struct netdev_queue *q)
- {
- #if defined(CONFIG_XPS) && defined(CONFIG_NUMA)
- return q->numa_node;
- #else
- return NUMA_NO_NODE;
- #endif
- }
- static inline void netdev_queue_numa_node_write(struct netdev_queue *q, int node)
- {
- #if defined(CONFIG_XPS) && defined(CONFIG_NUMA)
- q->numa_node = node;
- #endif
- }
- #ifdef CONFIG_RPS
- /*
- * This structure holds an RPS map which can be of variable length. The
- * map is an array of CPUs.
- */
- struct rps_map {
- unsigned int len;
- struct rcu_head rcu;
- u16 cpus[0];
- };
- #define RPS_MAP_SIZE(_num) (sizeof(struct rps_map) + (_num * sizeof(u16)))
- /*
- * The rps_dev_flow structure contains the mapping of a flow to a CPU, the
- * tail pointer for that CPU's input queue at the time of last enqueue, and
- * a hardware filter index.
- */
- struct rps_dev_flow {
- u16 cpu;
- u16 filter;
- unsigned int last_qtail;
- };
- #define RPS_NO_FILTER 0xffff
- /*
- * The rps_dev_flow_table structure contains a table of flow mappings.
- */
- struct rps_dev_flow_table {
- unsigned int mask;
- struct rcu_head rcu;
- struct work_struct free_work;
- struct rps_dev_flow flows[0];
- };
- #define RPS_DEV_FLOW_TABLE_SIZE(_num) (sizeof(struct rps_dev_flow_table) + \
- (_num * sizeof(struct rps_dev_flow)))
- /*
- * The rps_sock_flow_table contains mappings of flows to the last CPU
- * on which they were processed by the application (set in recvmsg).
- */
- struct rps_sock_flow_table {
- unsigned int mask;
- u16 ents[0];
- };
- #define RPS_SOCK_FLOW_TABLE_SIZE(_num) (sizeof(struct rps_sock_flow_table) + \
- (_num * sizeof(u16)))
- #define RPS_NO_CPU 0xffff
- static inline void rps_record_sock_flow(struct rps_sock_flow_table *table,
- u32 hash)
- {
- if (table && hash) {
- unsigned int cpu, index = hash & table->mask;
- /* We only give a hint, preemption can change cpu under us */
- cpu = raw_smp_processor_id();
- if (table->ents[index] != cpu)
- table->ents[index] = cpu;
- }
- }
- static inline void rps_reset_sock_flow(struct rps_sock_flow_table *table,
- u32 hash)
- {
- if (table && hash)
- table->ents[hash & table->mask] = RPS_NO_CPU;
- }
- extern struct rps_sock_flow_table __rcu *rps_sock_flow_table;
- #ifdef CONFIG_RFS_ACCEL
- extern bool rps_may_expire_flow(struct net_device *dev, u16 rxq_index,
- u32 flow_id, u16 filter_id);
- #endif
- /* This structure contains an instance of an RX queue. */
- struct netdev_rx_queue {
- struct rps_map __rcu *rps_map;
- struct rps_dev_flow_table __rcu *rps_flow_table;
- struct kobject kobj;
- struct net_device *dev;
- } ____cacheline_aligned_in_smp;
- #endif /* CONFIG_RPS */
- #ifdef CONFIG_XPS
- /*
- * This structure holds an XPS map which can be of variable length. The
- * map is an array of queues.
- */
- struct xps_map {
- unsigned int len;
- unsigned int alloc_len;
- struct rcu_head rcu;
- u16 queues[0];
- };
- #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + (_num * sizeof(u16)))
- #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map)) \
- / sizeof(u16))
- /*
- * This structure holds all XPS maps for device. Maps are indexed by CPU.
- */
- struct xps_dev_maps {
- struct rcu_head rcu;
- struct xps_map __rcu *cpu_map[0];
- };
- #define XPS_DEV_MAPS_SIZE (sizeof(struct xps_dev_maps) + \
- (nr_cpu_ids * sizeof(struct xps_map *)))
- #endif /* CONFIG_XPS */
- #define TC_MAX_QUEUE 16
- #define TC_BITMASK 15
- /* HW offloaded queuing disciplines txq count and offset maps */
- struct netdev_tc_txq {
- u16 count;
- u16 offset;
- };
- /*
- * This structure defines the management hooks for network devices.
- * The following hooks can be defined; unless noted otherwise, they are
- * optional and can be filled with a null pointer.
- *
- * 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.
- *
- * netdev_tx_t (*ndo_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.
- * (can also return NETDEV_TX_LOCKED iff NETIF_F_LLTX)
- * 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.
- *
- * 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 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.
- *
- * void (*ndo_tx_timeout)(struct net_device *dev);
- * Callback uses when the transmitter has not made any progress
- * for dev->watchdog ticks.
- *
- * struct rtnl_link_stats64* (*ndo_get_stats64)(struct net_device *dev,
- * struct rtnl_link_stats64 *storage);
- * struct net_device_stats* (*ndo_get_stats)(struct net_device *dev);
- * Called when a user wants to get the network device usage
- * statistics. Drivers must do one of the following:
- * 1. Define @ndo_get_stats64 to fill in a zero-initialised
- * rtnl_link_stats64 structure passed by the caller.
- * 2. Define @ndo_get_stats to update a net_device_stats structure
- * (which should normally be dev->stats) and return a pointer to
- * it. The structure may be changed asynchronously only if each
- * field is written atomically.
- * 3. Update dev->stats asynchronously and atomically, and define
- * neither operation.
- *
- * void (*ndo_vlan_rx_register)(struct net_device *dev, struct vlan_group *grp);
- * If device support VLAN receive acceleration
- * (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);
- *
- * SR-IOV management functions.
- * int (*ndo_set_vf_mac)(struct net_device *dev, int vf, u8* mac);
- * int (*ndo_set_vf_vlan)(struct net_device *dev, int vf, u16 vlan, u8 qos);
- * int (*ndo_set_vf_tx_rate)(struct net_device *dev, int vf, int rate);
- * int (*ndo_get_vf_config)(struct net_device *dev,
- * int vf, struct ifla_vf_info *ivf);
- * int (*ndo_set_vf_port)(struct net_device *dev, int vf,
- * struct nlattr *port[]);
- * int (*ndo_get_vf_port)(struct net_device *dev, int vf, struct sk_buff *skb);
- * int (*ndo_setup_tc)(struct net_device *dev, u8 tc)
- * Called to setup 'tc' number of traffic classes in the net device. This
- * is always called from the stack with the rtnl lock held and netif tx
- * queues stopped. This allows the netdevice to perform queue management
- * safely.
- *
- * Fiber Channel over Ethernet (FCoE) offload functions.
- * int (*ndo_fcoe_enable)(struct net_device *dev);
- * Called when the FCoE protocol stack wants to start using LLD for FCoE
- * so the underlying device can perform whatever needed configuration or
- * initialization to support acceleration of FCoE traffic.
- *
- * int (*ndo_fcoe_disable)(struct net_device *dev);
- * Called when the FCoE protocol stack wants to stop using LLD for FCoE
- * so the underlying device can perform whatever needed clean-ups to
- * stop supporting acceleration of FCoE traffic.
- *
- * int (*ndo_fcoe_ddp_setup)(struct net_device *dev, u16 xid,
- * struct scatterlist *sgl, unsigned int sgc);
- * Called when the FCoE Initiator wants to initialize an I/O that
- * is a possible candidate for Direct Data Placement (DDP). The LLD can
- * perform necessary setup and returns 1 to indicate the device is set up
- * successfully to perform DDP on this I/O, otherwise this returns 0.
- *
- * int (*ndo_fcoe_ddp_done)(struct net_device *dev, u16 xid);
- * Called when the FCoE Initiator/Target is done with the DDPed I/O as
- * indicated by the FC exchange id 'xid', so the underlying device can
- * clean up and reuse resources for later DDP requests.
- *
- * int (*ndo_fcoe_ddp_target)(struct net_device *dev, u16 xid,
- * struct scatterlist *sgl, unsigned int sgc);
- * Called when the FCoE Target wants to initialize an I/O that
- * is a possible candidate for Direct Data Placement (DDP). The LLD can
- * perform necessary setup and returns 1 to indicate the device is set up
- * successfully to perform DDP on this I/O, otherwise this returns 0.
- *
- * int (*ndo_fcoe_get_wwn)(struct net_device *dev, u64 *wwn, int type);
- * Called when the underlying device wants to override default World Wide
- * Name (WWN) generation mechanism in FCoE protocol stack to pass its own
- * World Wide Port Name (WWPN) or World Wide Node Name (WWNN) to the FCoE
- * protocol stack to use.
- *
- * RFS acceleration.
- * int (*ndo_rx_flow_steer)(struct net_device *dev, const struct sk_buff *skb,
- * u16 rxq_index, u32 flow_id);
- * Set hardware filter for RFS. rxq_index is the target queue index;
- * flow_id is a flow ID to be passed to rps_may_expire_flow() later.
- * Return the filter ID on success, or a negative error code.
- *
- * Slave management functions (for bridge, bonding, etc). User should
- * call netdev_set_master() to set dev->master properly.
- * int (*ndo_add_slave)(struct net_device *dev, struct net_device *slave_dev);
- * Called to make another netdev an underling.
- *
- * int (*ndo_del_slave)(struct net_device *dev, struct net_device *slave_dev);
- * Called to release previously enslaved netdev.
- *
- * Feature/offload setting functions.
- * u32 (*ndo_fix_features)(struct net_device *dev, u32 features);
- * Adjusts the requested feature flags according to device-specific
- * constraints, and returns the resulting flags. Must not modify
- * the device state.
- *
- * int (*ndo_set_features)(struct net_device *dev, u32 features);
- * Called to update device configuration to new features. Passed
- * feature set might be less than what was returned by ndo_fix_features()).
- * Must return >0 or -errno if it changed dev->features itself.
- *
- */
- #define HAVE_NET_DEVICE_OPS
- 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);
- netdev_tx_t (*ndo_start_xmit) (struct sk_buff *skb,
- struct net_device *dev);
- u16 (*ndo_select_queue)(struct net_device *dev,
- struct sk_buff *skb);
- void (*ndo_change_rx_flags)(struct net_device *dev,
- int flags);
- void (*ndo_set_rx_mode)(struct net_device *dev);
- void (*ndo_set_multicast_list)(struct net_device *dev);
- int (*ndo_set_mac_address)(struct net_device *dev,
- void *addr);
- int (*ndo_validate_addr)(struct net_device *dev);
- int (*ndo_do_ioctl)(struct net_device *dev,
- struct ifreq *ifr, int cmd);
- int (*ndo_set_config)(struct net_device *dev,
- struct ifmap *map);
- int (*ndo_change_mtu)(struct net_device *dev,
- int new_mtu);
- int (*ndo_neigh_setup)(struct net_device *dev,
- struct neigh_parms *);
- void (*ndo_tx_timeout) (struct net_device *dev);
- struct rtnl_link_stats64* (*ndo_get_stats64)(struct net_device *dev,
- struct rtnl_link_stats64 *storage);
- 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
- void (*ndo_poll_controller)(struct net_device *dev);
- int (*ndo_netpoll_setup)(struct net_device *dev,
- struct netpoll_info *info);
- void (*ndo_netpoll_cleanup)(struct net_device *dev);
- #endif
- int (*ndo_set_vf_mac)(struct net_device *dev,
- int queue, u8 *mac);
- int (*ndo_set_vf_vlan)(struct net_device *dev,
- int queue, u16 vlan, u8 qos);
- int (*ndo_set_vf_tx_rate)(struct net_device *dev,
- int vf, int rate);
- int (*ndo_get_vf_config)(struct net_device *dev,
- int vf,
- struct ifla_vf_info *ivf);
- int (*ndo_set_vf_port)(struct net_device *dev,
- int vf,
- struct nlattr *port[]);
- int (*ndo_get_vf_port)(struct net_device *dev,
- int vf, struct sk_buff *skb);
- int (*ndo_setup_tc)(struct net_device *dev, u8 tc);
- #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
- int (*ndo_fcoe_enable)(struct net_device *dev);
- int (*ndo_fcoe_disable)(struct net_device *dev);
- int (*ndo_fcoe_ddp_setup)(struct net_device *dev,
- u16 xid,
- struct scatterlist *sgl,
- unsigned int sgc);
- int (*ndo_fcoe_ddp_done)(struct net_device *dev,
- u16 xid);
- int (*ndo_fcoe_ddp_target)(struct net_device *dev,
- u16 xid,
- struct scatterlist *sgl,
- unsigned int sgc);
- #define NETDEV_FCOE_WWNN 0
- #define NETDEV_FCOE_WWPN 1
- int (*ndo_fcoe_get_wwn)(struct net_device *dev,
- u64 *wwn, int type);
- #endif
- #ifdef CONFIG_RFS_ACCEL
- int (*ndo_rx_flow_steer)(struct net_device *dev,
- const struct sk_buff *skb,
- u16 rxq_index,
- u32 flow_id);
- #endif
- int (*ndo_add_slave)(struct net_device *dev,
- struct net_device *slave_dev);
- int (*ndo_del_slave)(struct net_device *dev,
- struct net_device *slave_dev);
- u32 (*ndo_fix_features)(struct net_device *dev,
- u32 features);
- int (*ndo_set_features)(struct net_device *dev,
- u32 features);
- };
- /*
- * 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
- * of the interface.
- */
- char name[IFNAMSIZ];
- struct pm_qos_request_list pm_qos_req;
- /* device name hash chain */
- struct hlist_node name_hlist;
- /* snmp alias */
- char *ifalias;
- /*
- * 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 long state;
- struct list_head dev_list;
- struct list_head napi_list;
- struct list_head unreg_list;
- /* currently active device features */
- u32 features;
- /* user-changeable features */
- u32 hw_features;
- /* user-requested features */
- u32 wanted_features;
- /* mask of features inheritable by VLAN devices */
- u32 vlan_features;
- /* Net device feature bits; if you change something,
- * also update netdev_features_strings[] in ethtool.c */
- #define NETIF_F_SG 1 /* Scatter/gather IO. */
- #define NETIF_F_IP_CSUM 2 /* Can checksum TCP/UDP over IPv4. */
- #define NETIF_F_NO_CSUM 4 /* Does not require checksum. F.e. loopack. */
- #define NETIF_F_HW_CSUM 8 /* Can checksum all the packets. */
- #define NETIF_F_IPV6_CSUM 16 /* Can checksum TCP/UDP over IPV6 */
- #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 */
- #define NETIF_F_GSO 2048 /* Enable software GSO. */
- #define NETIF_F_LLTX 4096 /* LockLess TX - deprecated. Please */
- /* do not use LLTX in new drivers */
- #define NETIF_F_NETNS_LOCAL 8192 /* Does not change network namespaces */
- #define NETIF_F_GRO 16384 /* Generic receive offload */
- #define NETIF_F_LRO 32768 /* large receive offload */
- /* the GSO_MASK reserves bits 16 through 23 */
- #define NETIF_F_FCOE_CRC (1 << 24) /* FCoE CRC32 */
- #define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */
- #define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/
- #define NETIF_F_NTUPLE (1 << 27) /* N-tuple filters supported */
- #define NETIF_F_RXHASH (1 << 28) /* Receive hashing offload */
- #define NETIF_F_RXCSUM (1 << 29) /* Receive checksumming offload */
- #define NETIF_F_NOCACHE_COPY (1 << 30) /* Use no-cache copyfromuser */
- #define NETIF_F_LOOPBACK (1 << 31) /* Enable loopback */
- /* Segmentation offload features */
- #define NETIF_F_GSO_SHIFT 16
- #define NETIF_F_GSO_MASK 0x00ff0000
- #define NETIF_F_TSO (SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT)
- #define NETIF_F_UFO (SKB_GSO_UDP << NETIF_F_GSO_SHIFT)
- #define NETIF_F_GSO_ROBUST (SKB_GSO_DODGY << NETIF_F_GSO_SHIFT)
- #define NETIF_F_TSO_ECN (SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT)
- #define NETIF_F_TSO6 (SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT)
- #define NETIF_F_FSO (SKB_GSO_FCOE << NETIF_F_GSO_SHIFT)
- /* Features valid for ethtool to change */
- /* = all defined minus driver/device-class-related */
- #define NETIF_F_NEVER_CHANGE (NETIF_F_VLAN_CHALLENGED | \
- NETIF_F_LLTX | NETIF_F_NETNS_LOCAL)
- #define NETIF_F_ETHTOOL_BITS (0xff3fffff & ~NETIF_F_NEVER_CHANGE)
- /* List of features with software fallbacks. */
- #define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | \
- NETIF_F_TSO6 | NETIF_F_UFO)
- #define NETIF_F_GEN_CSUM (NETIF_F_NO_CSUM | NETIF_F_HW_CSUM)
- #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)
- #define NETIF_F_ALL_TSO (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN)
- #define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \
- NETIF_F_FSO)
- /*
- * 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 | \
- NETIF_F_SG | NETIF_F_HIGHDMA | \
- NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED)
- /*
- * If one device doesn't support one of these features, then disable it
- * for all in netdev_increment_features.
- */
- #define NETIF_F_ALL_FOR_ALL (NETIF_F_NOCACHE_COPY | NETIF_F_FSO)
- /* changeable features with no special hardware requirements */
- #define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO)
- /* Interface index. Unique device identifier */
- int ifindex;
- int iflink;
- struct net_device_stats stats;
- atomic_long_t rx_dropped; /* dropped packets by core network
- * Do not use this in drivers.
- */
- #ifdef CONFIG_WIRELESS_EXT
- /* 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;
- #endif
- /* Management operations */
- const struct net_device_ops *netdev_ops;
- const struct ethtool_ops *ethtool_ops;
- /* Hardware header description */
- const struct header_ops *header_ops;
- unsigned int flags; /* interface flags (a la BSD) */
- unsigned int priv_flags; /* Like 'flags' but invisible to userspace. */
- unsigned short gflags;
- unsigned short padded; /* How much padding added by alloc_netdev() */
- unsigned char operstate; /* RFC2863 operstate */
- unsigned char link_mode; /* mapping policy to operstate */
- unsigned char if_port; /* Selectable AUI, TP,..*/
- unsigned char dma; /* DMA channel */
- unsigned int mtu; /* interface MTU value */
- unsigned short type; /* interface hardware type */
- unsigned short hard_header_len; /* hardware hdr length */
- /* 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;
- /* Interface address info. */
- unsigned char perm_addr[MAX_ADDR_LEN]; /* permanent hw address */
- unsigned char addr_assign_type; /* hw address assignment type */
- unsigned char addr_len; /* hardware address length */
- unsigned short dev_id; /* for shared network cards */
- spinlock_t addr_list_lock;
- struct netdev_hw_addr_list uc; /* Unicast mac addresses */
- struct netdev_hw_addr_list mc; /* Multicast mac addresses */
- int uc_promisc;
- unsigned int promiscuity;
- unsigned int allmulti;
- /* Protocol specific pointers */
- #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
- struct vlan_group __rcu *vlgrp; /* VLAN group */
- #endif
- #ifdef CONFIG_NET_DSA
- void *dsa_ptr; /* dsa specific data */
- #endif
- void *atalk_ptr; /* AppleTalk link */
- struct in_device __rcu *ip_ptr; /* IPv4 specific data */
- struct dn_dev __rcu *dn_ptr; /* DECnet specific data */
- struct inet6_dev __rcu *ip6_ptr; /* IPv6 specific data */
- void *ec_ptr; /* Econet specific data */
- void *ax25_ptr; /* AX.25 specific data */
- struct wireless_dev *ieee80211_ptr; /* IEEE 802.11 specific data,
- assign before registering */
- /*
- * Cache lines mostly used on receive path (including eth_type_trans())
- */
- unsigned long last_rx; /* Time of last Rx
- * This should not be set in
- * drivers, unless really needed,
- * because network stack (bonding)
- * use it if/when necessary, to
- * avoid dirtying this cache line.
- */
- struct net_device *master; /* Pointer to master device of a group,
- * which this device is member of.
- */
- /* Interface address info used in eth_type_trans() */
- unsigned char *dev_addr; /* hw address, (before bcast
- because most packets are
- unicast) */
- struct netdev_hw_addr_list dev_addrs; /* list of device
- hw addresses */
- unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */
- #ifdef CONFIG_RPS
- struct kset *queues_kset;
- struct netdev_rx_queue *_rx;
- /* Number of RX queues allocated at register_netdev() time */
- unsigned int num_rx_queues;
- /* Number of RX queues currently active in device */
- unsigned int real_num_rx_queues;
- #ifdef CONFIG_RFS_ACCEL
- /* CPU reverse-mapping for RX completion interrupts, indexed
- * by RX queue number. Assigned by driver. This must only be
- * set if the ndo_rx_flow_steer operation is defined. */
- struct cpu_rmap *rx_cpu_rmap;
- #endif
- #endif
- rx_handler_func_t __rcu *rx_handler;
- void __rcu *rx_handler_data;
- struct netdev_queue __rcu *ingress_queue;
- /*
- * Cache lines mostly used on transmit path
- */
- struct netdev_queue *_tx ____cacheline_aligned_in_smp;
- /* Number of TX queues allocated at alloc_netdev_mq() time */
- unsigned int num_tx_queues;
- /* Number of TX queues currently active in device */
- unsigned int real_num_tx_queues;
- /* root qdisc from userspace point of view */
- struct Qdisc *qdisc;
- unsigned long tx_queue_len; /* Max frames per queue allowed */
- spinlock_t tx_global_lock;
- #ifdef CONFIG_XPS
- struct xps_dev_maps __rcu *xps_maps;
- #endif
- /* These may be needed for future network-power-down code. */
- /*
- * trans_start here is expensive for high speed devices on SMP,
- * please use netdev_queue->trans_start instead.
- */
- unsigned long trans_start; /* Time (in jiffies) of last Tx */
- int watchdog_timeo; /* used by dev_watchdog() */
- struct timer_list watchdog_timer;
- /* Number of references to this device */
- int __percpu *pcpu_refcnt;
- /* delayed register/unregister */
- struct list_head todo_list;
- /* device index hash chain */
- struct hlist_node index_hlist;
- struct list_head link_watch_list;
- /* register/unregister state machine */
- enum { NETREG_UNINITIALIZED=0,
- NETREG_REGISTERED, /* completed register_netdevice */
- NETREG_UNREGISTERING, /* called unregister_netdevice */
- NETREG_UNREGISTERED, /* completed unregister todo */
- NETREG_RELEASED, /* called free_netdev */
- NETREG_DUMMY, /* dummy device for NAPI poll */
- } reg_state:8;
- bool dismantle; /* device is going do be freed */
- enum {
- RTNL_LINK_INITIALIZED,
- RTNL_LINK_INITIALIZING,
- } rtnl_link_state:16;
- /* Called from unregister, can be used to call free_netdev */
- void (*destructor)(struct net_device *dev);
- #ifdef CONFIG_NETPOLL
- struct netpoll_info *npinfo;
- #endif
- #ifdef CONFIG_NET_NS
- /* Network namespace this network device is inside */
- struct net *nd_net;
- #endif
- /* mid-layer private */
- union {
- void *ml_priv;
- struct pcpu_lstats __percpu *lstats; /* loopback stats */
- struct pcpu_tstats __percpu *tstats; /* tunnel stats */
- struct pcpu_dstats __percpu *dstats; /* dummy stats */
- };
- /* GARP */
- struct garp_port __rcu *garp_port;
- /* class/net/name entry */
- struct device dev;
- /* space for optional device, statistics, and wireless sysfs groups */
- const struct attribute_group *sysfs_groups[4];
- /* rtnetlink link ops */
- const struct rtnl_link_ops *rtnl_link_ops;
- /* for setting kernel sock attribute on TCP connection setup */
- #define GSO_MAX_SIZE 65536
- unsigned int gso_max_size;
- #ifdef CONFIG_DCB
- /* Data Center Bridging netlink ops */
- const struct dcbnl_rtnl_ops *dcbnl_ops;
- #endif
- u8 num_tc;
- struct netdev_tc_txq tc_to_txq[TC_MAX_QUEUE];
- u8 prio_tc_map[TC_BITMASK + 1];
- #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
- /* max exchange id for FCoE LRO by ddp */
- unsigned int fcoe_ddp_xid;
- #endif
- /* n-tuple filter list attached to this device */
- struct ethtool_rx_ntuple_list ethtool_ntuple_list;
- /* phy device may attach itself for hardware timestamping */
- struct phy_device *phydev;
- /* group the device belongs to */
- int group;
- };
- #define to_net_dev(d) container_of(d, struct net_device, dev)
- #define NETDEV_ALIGN 32
- static inline
- int netdev_get_prio_tc_map(const struct net_device *dev, u32 prio)
- {
- return dev->prio_tc_map[prio & TC_BITMASK];
- }
- static inline
- int netdev_set_prio_tc_map(struct net_device *dev, u8 prio, u8 tc)
- {
- if (tc >= dev->num_tc)
- return -EINVAL;
- dev->prio_tc_map[prio & TC_BITMASK] = tc & TC_BITMASK;
- return 0;
- }
- static inline
- void netdev_reset_tc(struct net_device *dev)
- {
- dev->num_tc = 0;
- memset(dev->tc_to_txq, 0, sizeof(dev->tc_to_txq));
- memset(dev->prio_tc_map, 0, sizeof(dev->prio_tc_map));
- }
- static inline
- int netdev_set_tc_queue(struct net_device *dev, u8 tc, u16 count, u16 offset)
- {
- if (tc >= dev->num_tc)
- return -EINVAL;
- dev->tc_to_txq[tc].count = count;
- dev->tc_to_txq[tc].offset = offset;
- return 0;
- }
- static inline
- int netdev_set_num_tc(struct net_device *dev, u8 num_tc)
- {
- if (num_tc > TC_MAX_QUEUE)
- return -EINVAL;
- dev->num_tc = num_tc;
- return 0;
- }
- static inline
- int netdev_get_num_tc(struct net_device *dev)
- {
- return dev->num_tc;
- }
- 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);
- }
- /*
- * Net namespace inlines
- */
- static inline
- struct net *dev_net(const struct net_device *dev)
- {
- return read_pnet(&dev->nd_net);
- }
- static inline
- void dev_net_set(struct net_device *dev, struct net *net)
- {
- #ifdef CONFIG_NET_NS
- release_net(dev->nd_net);
- dev->nd_net = hold_net(net);
- #endif
- }
- 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;
- }
- #ifndef CONFIG_NET_NS
- static inline void skb_set_dev(struct sk_buff *skb, struct net_device *dev)
- {
- skb->dev = dev;
- }
- #else /* CONFIG_NET_NS */
- void skb_set_dev(struct sk_buff *skb, struct net_device *dev);
- #endif
- 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;
- }
- /**
- * netdev_priv - access network device private data
- * @dev: network device
- *
- * Get network device private data
- */
- static inline void *netdev_priv(const struct net_device *dev)
- {
- return (char *)dev + ALIGN(sizeof(struct net_device), NETDEV_ALIGN);
- }
- /* Set the sysfs physical device reference for the network logical device
- * if set prior to registration will cause a symlink during initialization.
- */
- #define SET_NETDEV_DEV(net, pdev) ((net)->dev.parent = (pdev))
- /* Set the sysfs device type for the network logical device to allow
- * fin grained indentification of different network device types. For
- * example Ethernet, Wirelss LAN, Bluetooth, WiMAX etc.
- */
- #define SET_NETDEV_DEVTYPE(net, devtype) ((net)->dev.type = (devtype))
- /**
- * 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.
- */
- void netif_napi_add(struct net_device *dev, struct napi_struct *napi,
- int (*poll)(struct napi_struct *, int), int weight);
- /**
- * netif_napi_del - remove a napi context
- * @napi: napi context
- *
- * netif_napi_del() removes a napi context from the network device napi list
- */
- void netif_napi_del(struct napi_struct *napi);
- struct napi_gro_cb {
- /* Virtual address of skb_shinfo(skb)->frags[0].page + offset. */
- void *frag0;
- /* Length of frag0. */
- unsigned int frag0_len;
- /* This indicates where we are processing relative to skb->data. */
- int data_offset;
- /* 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;
- /* Free the skb? */
- int free;
- };
- #define NAPI_GRO_CB(skb) ((struct napi_gro_cb *)(skb)->cb)
- struct packet_type {
- __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 *);
- struct sk_buff *(*gso_segment)(struct sk_buff *skb,
- u32 features);
- int (*gso_send_check)(struct sk_buff *skb);
- struct sk_buff **(*gro_receive)(struct sk_buff **head,
- struct sk_buff *skb);
- int (*gro_complete)(struct sk_buff *skb);
- void *af_packet_priv;
- struct list_head list;
- };
- #include <linux/interrupt.h>
- #include <linux/notifier.h>
- extern rwlock_t dev_base_lock; /* Device list lock */
- #define for_each_netdev(net, d) \
- list_for_each_entry(d, &(net)->dev_base_head, dev_list)
- #define for_each_netdev_reverse(net, d) \
- list_for_each_entry_reverse(d, &(net)->dev_base_head, dev_list)
- #define for_each_netdev_rcu(net, d) \
- list_for_each_entry_rcu(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 for_each_netdev_continue_rcu(net, d) \
- list_for_each_entry_continue_rcu(d, &(net)->dev_base_head, dev_list)
- #define net_device_entry(lh) list_entry(lh, struct net_device, dev_list)
- static inline struct net_device *next_net_device(struct net_device *dev)
- {
- struct list_head *lh;
- struct net *net;
- net = dev_net(dev);
- lh = dev->dev_list.next;
- return lh == &net->dev_base_head ? NULL : net_device_entry(lh);
- }
- static inline struct net_device *next_net_device_rcu(struct net_device *dev)
- {
- struct list_head *lh;
- struct net *net;
- net = dev_net(dev);
- lh = rcu_dereference(list_next_rcu(&dev->dev_list));
- 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);
- }
- static inline struct net_device *first_net_device_rcu(struct net *net)
- {
- struct list_head *lh = rcu_dereference(list_next_rcu(&net->dev_base_head));
- return lh == &net->dev_base_head ? NULL : net_device_entry(lh);
- }
- extern int netdev_boot_setup_check(struct net_device *dev);
- extern unsigned long netdev_boot_base(const char *prefix, int unit);
- extern struct net_device *dev_getbyhwaddr_rcu(struct net *net, unsigned short type,
- const 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);
- 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);
- extern struct net_device *dev_get_by_flags_rcu(struct net *net, unsigned short flags,
- unsigned short mask);
- extern struct net_device *dev_get_by_name(struct net *net, const char *name);
- extern struct net_device *dev_get_by_name_rcu(struct net *net, const char *name);
- extern struct net_device *__dev_get_by_name(struct net *net, const char *name);
- 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);
- extern void dev_disable_lro(struct net_device *dev);
- extern int dev_queue_xmit(struct sk_buff *skb);
- extern int register_netdevice(struct net_device *dev);
- extern void unregister_netdevice_queue(struct net_device *dev,
- struct list_head *head);
- extern void unregister_netdevice_many(struct list_head *head);
- static inline void unregister_netdevice(struct net_device *dev)
- {
- unregister_netdevice_queue(dev, NULL);
- }
- extern int netdev_refcnt_read(const struct net_device *dev);
- 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);
- extern int init_dummy_netdev(struct net_device *dev);
- extern void netdev_resync_ops(struct net_device *dev);
- extern int call_netdevice_notifiers(unsigned long val, struct net_device *dev);
- 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);
- extern struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex);
- extern int dev_restart(struct net_device *dev);
- #ifdef CONFIG_NETPOLL_TRAP
- extern int netpoll_trap(void);
- #endif
- extern int skb_gro_receive(struct sk_buff **head,
- struct sk_buff *skb);
- extern void skb_gro_reset_offset(struct sk_buff *skb);
- static inline unsigned int skb_gro_offset(const struct sk_buff *skb)
- {
- return NAPI_GRO_CB(skb)->data_offset;
- }
- static inline unsigned int skb_gro_len(const struct sk_buff *skb)
- {
- return skb->len - NAPI_GRO_CB(skb)->data_offset;
- }
- static inline void skb_gro_pull(struct sk_buff *skb, unsigned int len)
- {
- NAPI_GRO_CB(skb)->data_offset += len;
- }
- static inline void *skb_gro_header_fast(struct sk_buff *skb,
- unsigned int offset)
- {
- return NAPI_GRO_CB(skb)->frag0 + offset;
- }
- static inline int skb_gro_header_hard(struct sk_buff *skb, unsigned int hlen)
- {
- return NAPI_GRO_CB(skb)->frag0_len < hlen;
- }
- static inline void *skb_gro_header_slow(struct sk_buff *skb, unsigned int hlen,
- unsigned int offset)
- {
- NAPI_GRO_CB(skb)->frag0 = NULL;
- NAPI_GRO_CB(skb)->frag0_len = 0;
- return pskb_may_pull(skb, hlen) ? skb->data + offset : NULL;
- }
- static inline void *skb_gro_mac_header(struct sk_buff *skb)
- {
- return NAPI_GRO_CB(skb)->frag0 ?: skb_mac_header(skb);
- }
- static inline void *skb_gro_network_header(struct sk_buff *skb)
- {
- return (NAPI_GRO_CB(skb)->frag0 ?: skb->data) +
- skb_network_offset(skb);
- }
- static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type,
- const void *daddr, const void *saddr,
- unsigned len)
- {
- if (!dev->header_ops || !dev->header_ops->create)
- return 0;
- return dev->header_ops->create(skb, dev, type, daddr, saddr, len);
- }
- static inline int dev_parse_header(const struct sk_buff *skb,
- unsigned char *haddr)
- {
- const struct net_device *dev = skb->dev;
- if (!dev->header_ops || !dev->header_ops->parse)
- return 0;
- return dev->header_ops->parse(skb, haddr);
- }
- 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
- */
- struct softnet_data {
- struct Qdisc *output_queue;
- struct Qdisc **output_queue_tailp;
- struct list_head poll_list;
- struct sk_buff *completion_queue;
- struct sk_buff_head process_queue;
- /* stats */
- unsigned int processed;
- unsigned int time_squeeze;
- unsigned int cpu_collision;
- unsigned int received_rps;
- #ifdef CONFIG_RPS
- struct softnet_data *rps_ipi_list;
- /* Elements below can be accessed between CPUs for RPS */
- struct call_single_data csd ____cacheline_aligned_in_smp;
- struct softnet_data *rps_ipi_next;
- unsigned int cpu;
- unsigned int input_queue_head;
- unsigned int input_queue_tail;
- #endif
- unsigned dropped;
- struct sk_buff_head input_pkt_queue;
- struct napi_struct backlog;
- };
- static inline void input_queue_head_incr(struct softnet_data *sd)
- {
- #ifdef CONFIG_RPS
- sd->input_queue_head++;
- #endif
- }
- static inline void input_queue_tail_incr_save(struct softnet_data *sd,
- unsigned int *qtail)
- {
- #ifdef CONFIG_RPS
- *qtail = ++sd->input_queue_tail;
- #endif
- }
- DECLARE_PER_CPU_ALIGNED(struct softnet_data, softnet_data);
- #define HAVE_NETIF_QUEUE
- extern void __netif_schedule(struct Qdisc *q);
- static inline void netif_schedule_queue(struct netdev_queue *txq)
- {
- if (!test_bit(__QUEUE_STATE_XOFF, &txq->state))
- __netif_schedule(txq->qdisc);
- }
- 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));
- }
- static inline void netif_tx_start_queue(struct netdev_queue *dev_queue)
- {
- clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state);
- }
- /**
- * netif_start_queue - allow transmit
- * @dev: network device
- *
- * Allow upper layers to call the device hard_start_xmit routine.
- */
- static inline void netif_start_queue(struct net_device *dev)
- {
- netif_tx_start_queue(netdev_get_tx_queue(dev, 0));
- }
- 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);
- }
- }
- static inline void netif_tx_wake_queue(struct netdev_queue *dev_queue)
- {
- #ifdef CONFIG_NETPOLL_TRAP
- if (netpoll_trap()) {
- netif_tx_start_queue(dev_queue);
- return;
- }
- #endif
- if (test_and_clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state))
- __netif_schedule(dev_queue->qdisc);
- }
- /**
- * 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.
- */
- static inline void netif_wake_queue(struct net_device *dev)
- {
- netif_tx_wake_queue(netdev_get_tx_queue(dev, 0));
- }
- 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);
- }
- }
- static inline void netif_tx_stop_queue(struct netdev_queue *dev_queue)
- {
- if (WARN_ON(!dev_queue)) {
- pr_info("netif_stop_queue() cannot be called before register_netdev()\n");
- return;
- }
- set_bit(__QUEUE_STATE_XOFF, &dev_queue->state);
- }
- /**
- * 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.
- */
- static inline void netif_stop_queue(struct net_device *dev)
- {
- netif_tx_stop_queue(netdev_get_tx_queue(dev, 0));
- }
- 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);
- }
- }
- static inline int netif_tx_queue_stopped(const struct netdev_queue *dev_queue)
- {
- return test_bit(__QUEUE_STATE_XOFF, &dev_queue->state);
- }
- /**
- * netif_queue_stopped - test if transmit queue is flowblocked
- * @dev: network device
- *
- * Test if transmit queue on device is currently unable to send.
- */
- static inline int netif_queue_stopped(const struct net_device *dev)
- {
- return netif_tx_queue_stopped(netdev_get_tx_queue(dev, 0));
- }
- static inline int netif_tx_queue_frozen_or_stopped(const struct netdev_queue *dev_queue)
- {
- return dev_queue->state & QUEUE_STATE_XOFF_OR_FROZEN;
- }
- /**
- * netif_running - test if up
- * @dev: network device
- *
- * Test if the device has been brought up.
- */
- static inline int netif_running(const struct net_device *dev)
- {
- return test_bit(__LINK_STATE_START, &dev->state);
- }
- /*
- * 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.
- */
- /**
- * 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.
- */
- static inline void netif_start_subqueue(struct net_device *dev, u16 queue_index)
- {
- struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index);
- netif_tx_start_queue(txq);
- }
- /**
- * 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.
- */
- static inline void netif_stop_subqueue(struct net_device *dev, u16 queue_index)
- {
- struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index);
- #ifdef CONFIG_NETPOLL_TRAP
- if (netpoll_trap())
- return;
- #endif
- netif_tx_stop_queue(txq);
- }
- /**
- * 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.
- */
- static inline int __netif_subqueue_stopped(const struct net_device *dev,
- u16 queue_index)
- {
- struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index);
- return netif_tx_queue_stopped(txq);
- }
- 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));
- }
- /**
- * 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.
- */
- static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index)
- {
- struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index);
- #ifdef CONFIG_NETPOLL_TRAP
- if (netpoll_trap())
- return;
- #endif
- if (test_and_clear_bit(__QUEUE_STATE_XOFF, &txq->state))
- __netif_schedule(txq->qdisc);
- }
- /*
- * Returns a Tx hash for the given packet when dev->real_num_tx_queues is used
- * as a distribution range limit for the returned value.
- */
- static inline u16 skb_tx_hash(const struct net_device *dev,
- const struct sk_buff *skb)
- {
- return __skb_tx_hash(dev, skb, dev->real_num_tx_queues);
- }
- /**
- * netif_is_multiqueue - test if device has multiple transmit queues
- * @dev: network device
- *
- * Check if device has multiple transmit queues
- */
- static inline int netif_is_multiqueue(const struct net_device *dev)
- {
- return dev->num_tx_queues > 1;
- }
- extern int netif_set_real_num_tx_queues(struct net_device *dev,
- unsigned int txq);
- #ifdef CONFIG_RPS
- extern int netif_set_real_num_rx_queues(struct net_device *dev,
- unsigned int rxq);
- #else
- static inline int netif_set_real_num_rx_queues(struct net_device *dev,
- unsigned int rxq)
- {
- return 0;
- }
- #endif
- static inline int netif_copy_real_num_queues(struct net_device *to_dev,
- const struct net_device *from_dev)
- {
- netif_set_real_num_tx_queues(to_dev, from_dev->real_num_tx_queues);
- #ifdef CONFIG_RPS
- return netif_set_real_num_rx_queues(to_dev,
- from_dev->real_num_rx_queues);
- #else
- return 0;
- #endif
- }
- /* Use this variant when it is known for sure that it
- * is executing from hardware interrupt context or with hardware interrupts
- * disabled.
- */
- extern void dev_kfree_skb_irq(struct sk_buff *skb);
- /* Use this variant in places where it could be invoked
- * from either hardware interrupt or other context, with hardware interrupts
- * either disabled or enabled.
- */
- extern void dev_kfree_skb_any(struct sk_buff *skb);
- #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);
- extern gro_result_t dev_gro_receive(struct napi_struct *napi,
- struct sk_buff *skb);
- extern gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb);
- extern gro_result_t napi_gro_receive(struct napi_struct *napi,
- struct sk_buff *skb);
- extern void napi_gro_flush(struct napi_struct *napi);
- extern struct sk_buff * napi_get_frags(struct napi_struct *napi);
- extern gro_result_t napi_frags_finish(struct napi_struct *napi,
- struct sk_buff *skb,
- gro_result_t ret);
- extern struct sk_buff * napi_frags_skb(struct napi_struct *napi);
- extern gro_result_t napi_gro_frags(struct napi_struct *napi);
- static inline void napi_free_frags(struct napi_struct *napi)
- {
- kfree_skb(napi->skb);
- napi->skb = NULL;
- }
- extern int netdev_rx_handler_register(struct net_device *dev,
- rx_handler_func_t *rx_handler,
- void *rx_handler_data);
- extern void netdev_rx_handler_unregister(struct net_device *dev);
- extern int dev_valid_name(const char *name);
- extern int dev_ioctl(struct net *net, unsigned int cmd, void __user *);
- extern int dev_ethtool(struct net *net, struct ifreq *);
- extern unsigned dev_get_flags(const struct net_device *);
- extern int __dev_change_flags(struct net_device *, unsigned int flags);
- extern int dev_change_flags(struct net_device *, unsigned);
- extern void __dev_notify_flags(struct net_device *, unsigned int old_flags);
- extern int dev_change_name(struct net_device *, const char *);
- extern int dev_set_alias(struct net_device *, const char *, size_t);
- extern int dev_change_net_namespace(struct net_device *,
- struct net *, const char *);
- extern int dev_set_mtu(struct net_device *, int);
- extern void dev_set_group(struct net_device *, int);
- extern int dev_set_mac_address(struct net_device *,
- struct sockaddr *);
- extern int dev_hard_start_xmit(struct sk_buff *skb,
- struct net_device *dev,
- struct netdev_queue *txq);
- extern int dev_forward_skb(struct net_device *dev,
- struct sk_buff *skb);
- extern int netdev_budget;
- /* Called by rtnetlink.c:rtnl_unlock() */
- extern void netdev_run_todo(void);
- /**
- * dev_put - release reference to device
- * @dev: network device
- *
- * Release reference to device to allow it to be freed.
- */
- static inline void dev_put(struct net_device *dev)
- {
- irqsafe_cpu_dec(*dev->pcpu_refcnt);
- }
- /**
- * dev_hold - get reference to device
- * @dev: network device
- *
- * Hold reference to device to keep it from being freed.
- */
- static inline void dev_hold(struct net_device *dev)
- {
- irqsafe_cpu_inc(*dev->pcpu_refcnt);
- }
- /* 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.
- *
- * 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.
- */
- extern void linkwatch_fire_event(struct net_device *dev);
- extern void linkwatch_forget_dev(struct net_device *dev);
- /**
- * netif_carrier_ok - test if carrier present
- * @dev: network device
- *
- * Check if carrier is present on device
- */
- static inline int netif_carrier_ok(const struct net_device *dev)
- {
- return !test_bit(__LINK_STATE_NOCARRIER, &dev->state);
- }
- extern unsigned long dev_trans_start(struct net_device *dev);
- extern void __netdev_watchdog_up(struct net_device *dev);
- extern void netif_carrier_on(struct net_device *dev);
- extern void netif_carrier_off(struct net_device *dev);
- extern void netif_notify_peers(struct net_device *dev);
- /**
- * 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.
- *
- */
- static inline void netif_dormant_on(struct net_device *dev)
- {
- if (!test_and_set_bit(__LINK_STATE_DORMANT, &dev->state))
- linkwatch_fire_event(dev);
- }
- /**
- * netif_dormant_off - set device as not dormant.
- * @dev: network device
- *
- * Device is not in dormant state.
- */
- static inline void netif_dormant_off(struct net_device *dev)
- {
- if (test_and_clear_bit(__LINK_STATE_DORMANT, &dev->state))
- linkwatch_fire_event(dev);
- }
- /**
- * netif_dormant - test if carrier present
- * @dev: network device
- *
- * Check if carrier is present on device
- */
- static inline int netif_dormant(const struct net_device *dev)
- {
- return test_bit(__LINK_STATE_DORMANT, &dev->state);
- }
- /**
- * netif_oper_up - test if device is operational
- * @dev: network device
- *
- * Check if carrier is operational
- */
- static inline int netif_oper_up(const struct net_device *dev)
- {
- return (dev->operstate == IF_OPER_UP ||
- dev->operstate == IF_OPER_UNKNOWN /* backward compat */);
- }
- /**
- * netif_device_present - is device available or removed
- * @dev: network device
- *
- * Check if device has not been removed from system.
- */
- static inline int netif_device_present(struct net_device *dev)
- {
- return test_bit(__LINK_STATE_PRESENT, &dev->state);
- }
- extern void netif_device_detach(struct net_device *dev);
- extern void netif_device_attach(struct net_device *dev);
- /*
- * 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;
- }
- static inline void __netif_tx_lock(struct netdev_queue *txq, int cpu)
- {
- spin_lock(&txq->_xmit_lock);
- txq->xmit_lock_owner = cpu;
- }
- static inline void __netif_tx_lock_bh(struct netdev_queue *txq)
- {
- spin_lock_bh(&txq->_xmit_lock);
- txq->xmit_lock_owner = smp_processor_id();
- }
- 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);
- }
- static inline void txq_trans_update(struct netdev_queue *txq)
- {
- if (txq->xmit_lock_owner != -1)
- txq->trans_start = jiffies;
- }
- /**
- * netif_tx_lock - grab network device transmit lock
- * @dev: network device
- *
- * Get network device transmit lock
- */
- static inline void netif_tx_lock(struct net_device *dev)
- {
- unsigned int i;
- int cpu;
- spin_lock(&dev->tx_global_lock);
- cpu = smp_processor_id();
- for (i = 0; i < dev->num_tx_queues; i++) {
- struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
- /* 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.
- */
- __netif_tx_lock(txq, cpu);
- set_bit(__QUEUE_STATE_FROZEN, &txq->state);
- __netif_tx_unlock(txq);
- }
- }
- static inline void netif_tx_lock_bh(struct net_device *dev)
- {
- local_bh_disable();
- netif_tx_lock(dev);
- }
- static inline void netif_tx_unlock(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);
- /* 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);
- netif_schedule_queue(txq);
- }
- spin_unlock(&dev->tx_global_lock);
- }
- static inline void netif_tx_unlock_bh(struct net_device *dev)
- {
- netif_tx_unlock(dev);
- local_bh_enable();
- }
- #define HARD_TX_LOCK(dev, txq, cpu) { \
- if ((dev->features & NETIF_F_LLTX) == 0) { \
- __netif_tx_lock(txq, cpu); \
- } \
- }
- #define HARD_TX_UNLOCK(dev, txq) { \
- if ((dev->features & NETIF_F_LLTX) == 0) { \
- __netif_tx_unlock(txq); \
- } \
- }
- static inline void netif_tx_disable(struct net_device *dev)
- {
- unsigned int i;
- int cpu;
- local_bh_disable();
- cpu = smp_processor_id();
- for (i = 0; i < dev->num_tx_queues; i++) {
- struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
- __netif_tx_lock(txq, cpu);
- netif_tx_stop_queue(txq);
- __netif_tx_unlock(txq);
- }
- local_bh_enable();
- }
- 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);
- }
- /*
- * dev_addrs walker. Should be used only for read access. Call with
- * rcu_read_lock held.
- */
- #define for_each_dev_addr(dev, ha) \
- list_for_each_entry_rcu(ha, &dev->dev_addrs.list, list)
- /* These functions live elsewhere (drivers/net/net_init.c, but related) */
- extern void ether_setup(struct net_device *dev);
- /* Support for loadable net-drivers */
- extern struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
- void (*setup)(struct net_device *),
- unsigned int txqs, unsigned int rxqs);
- #define alloc_netdev(sizeof_priv, name, setup) \
- alloc_netdev_mqs(sizeof_priv, name, setup, 1, 1)
- #define alloc_netdev_mq(sizeof_priv, name, setup, count) \
- alloc_netdev_mqs(sizeof_priv, name, setup, count, count)
- extern int register_netdev(struct net_device *dev);
- extern void unregister_netdev(struct net_device *dev);
- /* General hardware address lists handling functions */
- extern int __hw_addr_add_multiple(struct netdev_hw_addr_list *to_list,
- struct netdev_hw_addr_list *from_list,
- int addr_len, unsigned char addr_type);
- extern void __hw_addr_del_multiple(struct netdev_hw_addr_list *to_list,
- struct netdev_hw_addr_list *from_list,
- int addr_len, unsigned char addr_type);
- extern int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
- struct netdev_hw_addr_list *from_list,
- int addr_len);
- extern void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
- struct netdev_hw_addr_list *from_list,
- int addr_len);
- extern void __hw_addr_flush(struct netdev_hw_addr_list *list);
- extern void __hw_addr_init(struct netdev_hw_addr_list *list);
- /* Functions used for device addresses handling */
- extern int dev_addr_add(struct net_device *dev, unsigned char *addr,
- unsigned char addr_type);
- extern int dev_addr_del(struct net_device *dev, unsigned char *addr,
- unsigned char addr_type);
- extern int dev_addr_add_multiple(struct net_device *to_dev,
- struct net_device *from_dev,
- unsigned char addr_type);
- extern int dev_addr_del_multiple(struct net_device *to_dev,
- struct net_device *from_dev,
- unsigned char addr_type);
- extern void dev_addr_flush(struct net_device *dev);
- extern int dev_addr_init(struct net_device *dev);
- /* Functions used for unicast addresses handling */
- extern int dev_uc_add(struct net_device *dev, unsigned char *addr);
- extern int dev_uc_del(struct net_device *dev, unsigned char *addr);
- extern int dev_uc_sync(struct net_device *to, struct net_device *from);
- extern void dev_uc_unsync(struct net_device *to, struct net_device *from);
- extern void dev_uc_flush(struct net_device *dev);
- extern void dev_uc_init(struct net_device *dev);
- /* Functions used for multicast addresses handling */
- extern int dev_mc_add(struct net_device *dev, unsigned char *addr);
- extern int dev_mc_add_global(struct net_device *dev, unsigned char *addr);
- extern int dev_mc_del(struct net_device *dev, unsigned char *addr);
- extern int dev_mc_del_global(struct net_device *dev, unsigned char *addr);
- 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);
- extern void dev_mc_flush(struct net_device *dev);
- extern void dev_mc_init(struct net_device *dev);
- /* 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_set_promiscuity(struct net_device *dev, int inc);
- extern int dev_set_allmulti(struct net_device *dev, int inc);
- extern void netdev_state_change(struct net_device *dev);
- extern int netdev_bonding_change(struct net_device *dev,
- unsigned long event);
- extern void netdev_features_change(struct net_device *dev);
- /* Load a device via the kmod */
- extern void dev_load(struct net *net, const char *name);
- extern void dev_mcast_init(void);
- extern struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
- struct rtnl_link_stats64 *storage);
- extern int netdev_max_backlog;
- extern int netdev_tstamp_prequeue;
- extern int weight_p;
- extern int bpf_jit_enable;
- extern int netdev_set_master(struct net_device *dev, struct net_device *master);
- extern int netdev_set_bond_master(struct net_device *dev,
- struct net_device *master);
- extern int skb_checksum_help(struct sk_buff *skb);
- extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, u32 features);
- #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
- /* rx skb timestamps */
- extern void net_enable_timestamp(void);
- extern void net_disable_timestamp(void);
- #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
- extern int netdev_class_create_file(struct class_attribute *class_attr);
- extern void netdev_class_remove_file(struct class_attribute *class_attr);
- extern struct kobj_ns_type_operations net_ns_type_operations;
- extern const char *netdev_drivername(const struct net_device *dev);
- extern void linkwatch_run_queue(void);
- static inline u32 netdev_get_wanted_features(struct net_device *dev)
- {
- return (dev->features & ~dev->hw_features) | dev->wanted_features;
- }
- u32 netdev_increment_features(u32 all, u32 one, u32 mask);
- u32 netdev_fix_features(struct net_device *dev, u32 features);
- int __netdev_update_features(struct net_device *dev);
- void netdev_update_features(struct net_device *dev);
- void netdev_change_features(struct net_device *dev);
- void netif_stacked_transfer_operstate(const struct net_device *rootdev,
- struct net_device *dev);
- u32 netif_skb_features(struct sk_buff *skb);
- static inline int net_gso_ok(u32 features, int gso_type)
- {
- int feature = gso_type << NETIF_F_GSO_SHIFT;
- return (features & feature) == feature;
- }
- static inline int skb_gso_ok(struct sk_buff *skb, u32 features)
- {
- return net_gso_ok(features, skb_shinfo(skb)->gso_type) &&
- (!skb_has_frag_list(skb) || (features & NETIF_F_FRAGLIST));
- }
- static inline int netif_needs_gso(struct sk_buff *skb, int features)
- {
- return skb_is_gso(skb) && (!skb_gso_ok(skb, features) ||
- unlikely(skb->ip_summed != CHECKSUM_PARTIAL));
- }
- static inline void netif_set_gso_max_size(struct net_device *dev,
- unsigned int size)
- {
- dev->gso_max_size = size;
- }
- static inline int netif_is_bond_slave(struct net_device *dev)
- {
- return dev->flags & IFF_SLAVE && dev->priv_flags & IFF_BONDING;
- }
- extern struct pernet_operations __net_initdata loopback_net_ops;
- int dev_ethtool_get_settings(struct net_device *dev,
- struct ethtool_cmd *cmd);
- static inline u32 dev_ethtool_get_rx_csum(struct net_device *dev)
- {
- if (dev->features & NETIF_F_RXCSUM)
- return 1;
- if (!dev->ethtool_ops || !dev->ethtool_ops->get_rx_csum)
- return 0;
- return dev->ethtool_ops->get_rx_csum(dev);
- }
- static inline u32 dev_ethtool_get_flags(struct net_device *dev)
- {
- if (!dev->ethtool_ops || !dev->ethtool_ops->get_flags)
- return 0;
- return dev->ethtool_ops->get_flags(dev);
- }
- /* Logging, debugging and troubleshooting/diagnostic helpers. */
- /* netdev_printk helpers, similar to dev_printk */
- static inline const char *netdev_name(const struct net_device *dev)
- {
- if (dev->reg_state != NETREG_REGISTERED)
- return "(unregistered net_device)";
- return dev->name;
- }
- extern int netdev_printk(const char *level, const struct net_device *dev,
- const char *format, ...)
- __attribute__ ((format (printf, 3, 4)));
- extern int netdev_emerg(const struct net_device *dev, const char *format, ...)
- __attribute__ ((format (printf, 2, 3)));
- extern int netdev_alert(const struct net_device *dev, const char *format, ...)
- __attribute__ ((format (printf, 2, 3)));
- extern int netdev_crit(const struct net_device *dev, const char *format, ...)
- __attribute__ ((format (printf, 2, 3)));
- extern int netdev_err(const struct net_device *dev, const char *format, ...)
- __attribute__ ((format (printf, 2, 3)));
- extern int netdev_warn(const struct net_device *dev, const char *format, ...)
- __attribute__ ((format (printf, 2, 3)));
- extern int netdev_notice(const struct net_device *dev, const char *format, ...)
- __attribute__ ((format (printf, 2, 3)));
- extern int netdev_info(const struct net_device *dev, const char *format, ...)
- __attribute__ ((format (printf, 2, 3)));
- #define MODULE_ALIAS_NETDEV(device) \
- MODULE_ALIAS("netdev-" device)
- #if defined(DEBUG)
- #define netdev_dbg(__dev, format, args...) \
- netdev_printk(KERN_DEBUG, __dev, format, ##args)
- #elif defined(CONFIG_DYNAMIC_DEBUG)
- #define netdev_dbg(__dev, format, args...) \
- do { \
- dynamic_dev_dbg((__dev)->dev.parent, "%s: " format, \
- netdev_name(__dev), ##args); \
- } while (0)
- #else
- #define netdev_dbg(__dev, format, args...) \
- ({ \
- if (0) \
- netdev_printk(KERN_DEBUG, __dev, format, ##args); \
- 0; \
- })
- #endif
- #if defined(VERBOSE_DEBUG)
- #define netdev_vdbg netdev_dbg
- #else
- #define netdev_vdbg(dev, format, args...) \
- ({ \
- if (0) \
- netdev_printk(KERN_DEBUG, dev, format, ##args); \
- 0; \
- })
- #endif
- /*
- * netdev_WARN() acts like dev_printk(), but with the key difference
- * of using a WARN/WARN_ON to get the message out, including the
- * file/line information and a backtrace.
- */
- #define netdev_WARN(dev, format, args...) \
- WARN(1, "netdevice: %s\n" format, netdev_name(dev), ##args);
- /* netif printk helpers, similar to netdev_printk */
- #define netif_printk(priv, type, level, dev, fmt, args...) \
- do { \
- if (netif_msg_##type(priv)) \
- netdev_printk(level, (dev), fmt, ##args); \
- } while (0)
- #define netif_level(level, priv, type, dev, fmt, args...) \
- do { \
- if (netif_msg_##type(priv)) \
- netdev_##level(dev, fmt, ##args); \
- } while (0)
- #define netif_emerg(priv, type, dev, fmt, args...) \
- netif_level(emerg, priv, type, dev, fmt, ##args)
- #define netif_alert(priv, type, dev, fmt, args...) \
- netif_level(alert, priv, type, dev, fmt, ##args)
- #define netif_crit(priv, type, dev, fmt, args...) \
- netif_level(crit, priv, type, dev, fmt, ##args)
- #define netif_err(priv, type, dev, fmt, args...) \
- netif_level(err, priv, type, dev, fmt, ##args)
- #define netif_warn(priv, type, dev, fmt, args...) \
- netif_level(warn, priv, type, dev, fmt, ##args)
- #define netif_notice(priv, type, dev, fmt, args...) \
- netif_level(notice, priv, type, dev, fmt, ##args)
- #define netif_info(priv, type, dev, fmt, args...) \
- netif_level(info, priv, type, dev, fmt, ##args)
- #if defined(DEBUG)
- #define netif_dbg(priv, type, dev, format, args...) \
- netif_printk(priv, type, KERN_DEBUG, dev, format, ##args)
- #elif defined(CONFIG_DYNAMIC_DEBUG)
- #define netif_dbg(priv, type, netdev, format, args...) \
- do { \
- if (netif_msg_##type(priv)) \
- dynamic_dev_dbg((netdev)->dev.parent, \
- "%s: " format, \
- netdev_name(netdev), ##args); \
- } while (0)
- #else
- #define netif_dbg(priv, type, dev, format, args...) \
- ({ \
- if (0) \
- netif_printk(priv, type, KERN_DEBUG, dev, format, ##args); \
- 0; \
- })
- #endif
- #if defined(VERBOSE_DEBUG)
- #define netif_vdbg netif_dbg
- #else
- #define netif_vdbg(priv, type, dev, format, args...) \
- ({ \
- if (0) \
- netif_printk(priv, type, KERN_DEBUG, dev, format, ##args); \
- 0; \
- })
- #endif
- #endif /* __KERNEL__ */
- #endif /* _LINUX_NETDEVICE_H */
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