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Location: vmkdrivers/vmkdrivers/src_9/include/linux/netdevice.h
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* Portions Copyright 2008 - 2011 VMware, Inc.
*/
/*
* 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.Cox@linux.org>
* 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__
#include <asm/atomic.h>
#include <asm/cache.h>
#include <asm/byteorder.h>
#include <linux/device.h>
#include <linux/percpu.h>
#include <linux/dmaengine.h>
#if defined(__VMKLNX__)
#include <linux/delay.h>
#include "vmkapi.h"
#include <linux/inet_lro.h>
#include <net/dcbnl.h>
extern unsigned int vmklnxLROMaxAggr;
#endif /* defined(__VMKLNX__) */
struct divert_blk;
struct vlan_group;
struct ethtool_ops;
struct netpoll_info;
/* source back-compat hooks */
/**
* SET_ETHTOOL_OPS - Set the ethtool ops pointer of the network device
* @netdev: network device
* @ops: pointer to the ethtool_ops data structure
*
* Sets the ethtool operations pointer of the network device to the specified
* ethtool_ops pointer.
*
* SYNOPSIS:
* #define SET_ETHTOOL_OPS(netdev,ops)
*
* RETURN VALUE:
* None
*
*/
/* _VMKLNX_CODECHECK_: SET_ETHTOOL_OPS */
#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 */
#define NET_XMIT_BYPASS 4 /* packet does not leave via dequeue;
(TC use only - dev_queue_xmit
returns this as NET_XMIT_SUCCESS) */
/* 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 */
#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 */
/*
* Compute the worst case header length according to the protocols
* used.
*/
#if !defined(CONFIG_AX25) && !defined(CONFIG_AX25_MODULE) && !defined(CONFIG_TR)
#define LL_MAX_HEADER 32
#else
#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
#define LL_MAX_HEADER 96
#else
#define LL_MAX_HEADER 48
#endif
#endif
#if !defined(CONFIG_NET_IPIP) && \
!defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
#define MAX_HEADER LL_MAX_HEADER
#else
#define MAX_HEADER (LL_MAX_HEADER + 48)
#endif
#if defined(__VMKLNX__)
#define VMKLNX_PKT_HEAP_MAX_SIZE 224
#endif
/*
* 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;
unsigned cpu_collision;
};
DECLARE_PER_CPU(struct netif_rx_stats, netdev_rx_stat);
/*
* We tag multicasts with these structures.
*/
struct dev_mc_list
{
struct dev_mc_list *next;
__u8 dmi_addr[MAX_ADDR_LEN];
unsigned char dmi_addrlen;
int dmi_users;
int dmi_gusers;
};
struct hh_cache
{
struct hh_cache *hh_next; /* Next entry */
atomic_t hh_refcnt; /* number of users */
unsigned short hh_type; /* protocol identifier, f.e ETH_P_IP
* NOTE: For VLANs, this will be the
* encapuslated type. --BLG
*/
int hh_len; /* length of header */
int (*hh_output)(struct sk_buff *skb);
rwlock_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)];
};
/* 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.
*/
#define LL_RESERVED_SPACE(dev) \
(((dev)->hard_header_len&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
#define LL_RESERVED_SPACE_EXTRA(dev,extra) \
((((dev)->hard_header_len+extra)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
/* 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_XOFF=0,
__LINK_STATE_START,
__LINK_STATE_PRESENT,
__LINK_STATE_NOCARRIER,
#if !defined(__VMKLNX__)
__LINK_STATE_RX_SCHED,
#endif /* !defined(__VMKLNX__) */
__LINK_STATE_LINKWATCH_PENDING,
__LINK_STATE_DORMANT,
__LINK_STATE_QDISC_RUNNING,
#if defined(__VMKLNX__)
__LINK_STATE_BLOCKED,
__LINK_STATE_TOGGLED,
#endif /* defined(__VMKLNX__) */
};
#if defined(__VMKLNX__)
typedef enum netqueue_state
{
__NETQUEUE_STATE = 0,
} netqueue_state_t;
struct napi_wdt_priv {
struct net_device *dev; /* device receiving packets */
struct napi_struct *napi; /* napi context being polled */
};
#endif /* defined(__VMKLNX__) */
#if defined(__VMKLNX__)
/*
* Poll type being used. vmklinux creates poll for per queue and a backup
* poll for the device. The type specifies the kind of poll being used.
*/
typedef enum {
NETPOLL_DEFAULT = 0,
NETPOLL_BACKUP = 1,
} vmklnx_poll_type;
struct napi_struct {
unsigned long state;
int weight;
int (*poll)(struct napi_struct *, int);
unsigned int napi_id;
struct net_device *dev;
struct list_head dev_list;
vmk_Bool dev_poll;
void * net_poll;
vmklnx_poll_type net_poll_type;
struct napi_wdt_priv napi_wdt_priv;
vmk_uint32 vector;
struct net_lro_mgr lro_mgr;
struct net_lro_desc lro_desc[LRO_DEFAULT_MAX_DESC];
};
enum
{
NAPI_STATE_SCHED, /* Poll is scheduled */
NAPI_STATE_DISABLE, /* Disable pending */
NAPI_STATE_UNUSED /* Another state to distinguish
* an inited but never enabled
* napi context from a disabled context
*/
};
#else /* !defined(__VMKLNX__) */
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;
struct net_device *dev;
struct list_head dev_list;
#endif
};
#endif /* defined(__VMKLNX__) */
#if defined(__VMKLNX__)
extern void FASTCALL(__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.
*
* RETURN VALUE:
* 0 if NAPI routine is already running
* Non zero value otherwise
*/
/* _VMKLNX_CODECHECK_: napi_schedule_prep */
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.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: napi_schedule */
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.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: napi_complete */
static inline void __napi_complete(struct napi_struct *n)
{
BUG_ON(!test_bit(NAPI_STATE_SCHED, &n->state));
/*
* 2008: poll_list is not needed in vmklinx.
*/
/* list_del(&n->poll_list); */
smp_mb__before_clear_bit();
clear_bit(NAPI_STATE_SCHED, &n->state);
}
static inline void napi_complete(struct napi_struct *n)
{
/*
* 2008: irq shield is only intended to protect napi->poll_list.
* Since poll_list is not supported in vmklinx, thus no need for the irq shield.
*/
/* local_irq_disable(); */
__napi_complete(n);
/* local_irq_enable(); */
}
extern void napi_disable(struct napi_struct *n);
extern void napi_enable(struct napi_struct *n);
#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.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: napi_synchronize */
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
extern void netif_napi_add(struct net_device *dev,
struct napi_struct *napi,
int (*poll)(struct napi_struct *, int),
int weight);
extern void netif_napi_del(struct napi_struct *napi);
#endif /* defined(__VMKLNX__) */
/*
* 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);
/*
* hardware queue states
*/
enum netdev_queue_state_t
{
__QUEUE_STATE_XOFF,
__QUEUE_STATE_SCHED,
};
#if defined(__VMKLNX__)
struct netdev_soft_queue {
spinlock_t queue_lock; /* queue lock */
unsigned int state; /* queue state */
unsigned int hardState; /* hard queue state */
vmk_PktList outputList; /* output packet list */
uint32_t outputListMaxSize; /* max allowed queue length */
};
struct tx_netqueue_info {
vmk_Bool valid;
vmk_uint64 vmkqid;
};
#endif /* defined(__VMKLNX__) */
struct netdev_queue {
struct net_device *dev;
unsigned long state;
#if defined(__VMKLNX__)
/*
* software transmit queue. packets get queue here first and
* then drained out of this queue to the hardware
*/
struct netdev_soft_queue softq ____cacheline_aligned_in_smp;
#endif /* defined(__VMKLNX__) */
/* xmit lock, taken by thread entring the driver */
spinlock_t _xmit_lock ____cacheline_aligned_in_smp;
int xmit_lock_owner;
unsigned char processing_tx;
struct netdev_queue *next_sched;
} ____cacheline_aligned_in_smp;
/*
* 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.
*/
#if defined(__VMKLNX__)
char name[VMK_DEVICE_NAME_MAX_LENGTH];
#else /* !defined(__VMKLNX__) */
char name[IFNAMSIZ];
#endif /* defined(__VMKLNX__) */
/* device name hash chain */
struct hlist_node name_hlist;
/*
* 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;
struct net_device *next;
/* The device initialization function. Called only once. */
int (*init)(struct net_device *dev);
/* ------- Fields preinitialized in Space.c finish here ------- */
/* Net device features */
unsigned long features;
#if defined (__VMKLNX__)
#define NETIF_F_PSEUDO_REG 0x10000000000 /* PF uplink registered as pseudo. */
#define NETIF_F_UPT 0x100000000 /* Uniform passthru */
#define NETIF_F_HIDDEN_UPLINK 32768 /* Uplink hidden from VC. */
#define NETIF_F_SW_LRO 16384 /* Software LRO engine. */
#define NETIF_F_FRAG_CANT_SPAN_PAGES 8192 /* each frag cannot span multiple pages. */
#endif /* defined(__VMKLNX__) */
#define NETIF_F_SG 1 /* Scatter/gather IO. */
#define NETIF_F_IP_CSUM 2 /* Can checksum only 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. */
#if defined(__VMKLNX__)
#define NETIF_F_IPV6_CSUM 16 /* Can checksum TCP/UDP over IPV6 */
#endif /* defined(__VMKLNX__) */
#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 */
#define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/
/* Segmentation offload features */
#define NETIF_F_GSO_SHIFT 16
#if defined(__VMKLNX__)
#define NETIF_F_GSO_MASK 0x3fffffff
#else /* !defined(__VMKLNX__) */
#define NETIF_F_GSO_MASK 0xffff0000
#endif /* defined(__VMKLNX__) */
#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)
/* device can perform tso/csum with offsets */
#define NETIF_F_OFFLOAD_8OFFSET ((1 << 6) << NETIF_F_GSO_SHIFT)
#define NETIF_F_OFFLOAD_16OFFSET ((1 << 7) << NETIF_F_GSO_SHIFT)
#define NETIF_F_RDONLYINETHDRS ((1 << 8) << NETIF_F_GSO_SHIFT)
/* List of features with software fallbacks. */
#define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6)
#define NETIF_F_GEN_CSUM (NETIF_F_NO_CSUM | NETIF_F_HW_CSUM)
#define NETIF_F_ALL_CSUM (NETIF_F_IP_CSUM | NETIF_F_GEN_CSUM)
#if defined(__VMKLNX__)
/* FCoE specific flags */
#define NETIF_F_CNA (0x80000000)
#define NETIF_F_FCOE_CRC (0x40000000)
#define NETIF_F_HWDCB (0x2000000000)
/* DMA constraint flags */
#define NETIF_F_DMA39 (0x200000000) /* implements 39 bit DMA mask */
#define NETIF_F_DMA40 (0x400000000) /* implements 40 bit DMA mask */
#define NETIF_F_DMA48 (0x800000000) /* implements 48 bit DMA mask */
#define NETIF_F_NO_SCHED (0x1000000000) /* not compliant with network scheduling */
#endif /* defined(__VMKLNX__) */
/* Interface index. Unique device identifier */
int ifindex;
int iflink;
struct net_device_stats* (*get_stats)(struct net_device *dev);
#if defined(__VMKLNX__)
struct net_device_stats stats;
#endif /* defined(__VMKLNX__) */
struct iw_statistics* (*get_wireless_stats)(struct net_device *dev);
/* 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;
/* pending config used by cfg80211/wext compat code only */
void *cfg80211_wext_pending_config;
struct ethtool_ops *ethtool_ops;
/*
* This marks the end of the "visible" part of the structure. All
* fields hereafter are internal to the system, and may change at
* will (read: may be cleaned up at will).
*/
unsigned int flags; /* interface flags (a la BSD) */
unsigned short gflags;
#if defined (__VMKLNX__)
#define IFF_DEV_IS_OPEN 0x1
#endif /* defined(__VMKLNX__) */
unsigned short priv_flags; /* Like 'flags' but invisible to userspace. */
unsigned short padded; /* How much padding added by alloc_netdev() */
unsigned char operstate; /* RFC2863 operstate */
unsigned char link_mode; /* mapping policy to operstate */
unsigned mtu; /* interface MTU value */
unsigned short type; /* interface hardware type */
unsigned short hard_header_len; /* hardware hdr length */
struct net_device *master; /* Pointer to master device of a group,
* which this device is member of.
*/
/* Interface address info. */
unsigned char perm_addr[MAX_ADDR_LEN]; /* permanent hw address */
unsigned char addr_len; /* hardware address length */
unsigned short dev_id; /* for shared network cards */
struct dev_mc_list *mc_list; /* Multicast mac addresses */
int mc_count; /* Number of installed mcasts */
int promiscuity;
int allmulti;
/* Protocol specific pointers */
void *atalk_ptr; /* AppleTalk link */
void *ip_ptr; /* IPv4 specific data */
#if defined(__VMKLNX__)
void *fcoe_ptr; /* FCoE specific data */
/* Data Center Bridging netlink ops */
struct dcbnl_rtnl_ops *dcbnl_ops;
/* Function pointers for FCoE offloads */
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);
#else /* !defined(__VMKLNX__) */
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 */
#endif /* defined(__VMKLNX__) */
void *ieee80211_ptr; /* IEEE 802.11 specific data */
#if defined(__VMKLNX__)
/*
* Cache line mostly used on receive path (including eth_type_trans())
*/
void *genCount;
unsigned long last_rx; /* Time of last Rx */
atomic_t rxInFlight; /* keeps track of the rx packet in flight. */
unsigned long linnet_rx_packets; /* vmklinux rx packets */
unsigned long linnet_tx_packets; /* vmklinux tx packets */
unsigned long linnet_rx_dropped; /* vmklinux rx dropped */
unsigned long linnet_tx_dropped; /* vmklinux tx dropped */
int linnet_pkt_completed; /* vmklinux pkt completed */
#endif /* defined(__VMKLNX__) */
/* Interface address info used in eth_type_trans() */
unsigned char dev_addr[MAX_ADDR_LEN]; /* hw address, (before bcast
because most packets are unicast) */
unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */
/*
* Cache line mostly used on queue transmit path (qdisc)
*/
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;
unsigned long tx_queue_len; /* Max frames per queue allowed */
void *priv; /* pointer to private data */
int (*hard_start_xmit) (struct sk_buff *skb,
struct net_device *dev);
/* 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;
/*
* refcnt is a very hot point, so align it on SMP
*/
/* Number of references to this device */
atomic_t refcnt ____cacheline_aligned_in_smp;
/* 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 */
#if defined(__VMKLNX__)
NETREG_EARLY_NAPI_ADD_FAILED, /* early napi_add failed */
#endif /* defined(__VMKLNX__) */
} reg_state;
/* Called after device is detached from network. */
void (*uninit)(struct net_device *dev);
/* Called after last user reference disappears. */
void (*destructor)(struct net_device *dev);
/* Pointers to interface service routines. */
int (*open)(struct net_device *dev);
int (*stop)(struct net_device *dev);
#define HAVE_NETDEV_POLL
int (*hard_header) (struct sk_buff *skb,
struct net_device *dev,
unsigned short type,
void *daddr,
void *saddr,
unsigned len);
int (*rebuild_header)(struct sk_buff *skb);
#define HAVE_MULTICAST
void (*set_multicast_list)(struct net_device *dev);
#define HAVE_SET_MAC_ADDR
int (*set_mac_address)(struct net_device *dev,
void *addr);
#define HAVE_PRIVATE_IOCTL
int (*do_ioctl)(struct net_device *dev,
struct ifreq *ifr, int cmd);
#define HAVE_SET_CONFIG
int (*set_config)(struct net_device *dev,
struct ifmap *map);
#define HAVE_HEADER_CACHE
int (*hard_header_cache)(struct neighbour *neigh,
struct hh_cache *hh);
void (*header_cache_update)(struct hh_cache *hh,
struct net_device *dev,
unsigned char * haddr);
#define HAVE_CHANGE_MTU
int (*change_mtu)(struct net_device *dev, int new_mtu);
#define HAVE_TX_TIMEOUT
void (*tx_timeout) (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);
int (*hard_header_parse)(struct sk_buff *skb,
unsigned char *haddr);
int (*neigh_setup)(struct net_device *dev, struct neigh_parms *);
#ifdef CONFIG_NETPOLL
struct netpoll_info *npinfo;
#endif
#ifdef CONFIG_NET_POLL_CONTROLLER
void (*poll_controller)(struct net_device *dev);
#endif
/* bridge stuff */
struct net_bridge_port *br_port;
#ifdef CONFIG_NET_DIVERT
/* this will get initialized at each interface type init routine */
struct divert_blk *divert;
#endif /* CONFIG_NET_DIVERT */
/* class/net/name entry */
struct class_device class_dev;
/* space for optional statistics and wireless sysfs groups */
struct attribute_group *sysfs_groups[3];
#if defined(__VMKLNX__)
void *uplinkDev;
struct pci_dev *pdev;
struct sk_buff *privateSKBList;
unsigned int privateSKBCount;
struct tx_netqueue_info *tx_netqueue_info;
/*
* enable_intr is a pointer to a function which will enable
* (if "enable" is 1) or disable (if "enable" is 0) interrupts
* on the card. The function must return 0 on success, and any
* other value on failure. If the driver does not implement
* this behavior, enable_intr may be NULL. This hook is used by
* the interrupt clustering code in vmkernel/main/net.c
*/
int (*enable_intr)(struct net_device *dev, int enable);
int link_speed;
vmklnx_uplink_link_state link_state;
int full_duplex;
vmk_ModuleID module_id;
int nicMajor;
unsigned short watchdog_timeohit_cnt; /* Number of timeout hit */
/* Number of timeout needed before entering in panic mod */
unsigned short watchdog_timeohit_cfg;
/* Global number of timeout hit */
unsigned short watchdog_timeohit_stats;
vmklnx_uplink_watchdog_panic_mod_state watchdog_timeohit_panic; /* Panic mod */
#define NETDEV_TICKS_PER_HOUR HZ * 3600
unsigned long watchdog_timeohit_period_start;
vmknetddi_queueops_f netqueue_ops;
kmem_cache_t *skb_pool;
int useDriverNamingDevice;
spinlock_t napi_lock;
struct list_head napi_list;
void *net_poll;
void *default_net_poll;
struct napi_wdt_priv napi_wdt_priv;
struct vlan_group *vlan_group;
/* This is being used by pnics which register as pseudo-devices. These
* drivers save the dev->pdev in this field, prior to setting it to
* null. These device drivers also set the DEVICE_PSEUDO_REG bit in the
* dev->features field if they use the earlier "unused" field in this
* manner.
*/
void *pdev_pseudo;
void *pt_ops;
void *cna_ops;
unsigned long netq_state; /* rx netq state */
#endif /* defined(__VMKLNX__) */
/* for setting kernel sock attribute on TCP connection setup */
#define GSO_MAX_SIZE 65536
unsigned int gso_max_size;
/* max exchange id for FCoE LRO by ddp */
unsigned int fcoe_ddp_xid;
};
/*
* Netqueue APIs
*/
#if defined(__VMKLNX__)
#define VMKNETDDI_REGISTER_QUEUEOPS(ndev, ops) \
do { \
ndev->netqueue_ops = ops; \
} while (0)
static inline void vmknetddi_queueops_invalidate_state(struct net_device *dev)
{
clear_bit(__NETQUEUE_STATE, (void*)&dev->netq_state);
}
static inline vmk_Bool vmknetddi_queueops_getset_state(struct net_device *dev, vmk_Bool newState)
{
if (newState)
return (test_and_set_bit(__NETQUEUE_STATE, (void*)&dev->netq_state) != 0);
else
return (test_and_clear_bit(__NETQUEUE_STATE, (void*)&dev->netq_state) != 0);
}
/*
* PT API registration macro
*/
#define VMK_REGISTER_PT_OPS(ndev, ops) \
do { \
ndev->pt_ops = ops; \
} while (0)
#endif /* defined(__VMKLNX__) */
#define NETDEV_ALIGN 32
#define NETDEV_ALIGN_CONST (NETDEV_ALIGN - 1)
/**
* netdev_get_tx_queue - get tx queue descriptor
* @dev: network device
* @index: tx queue index
*
* Get netdev_queue descriptor of tx queue specified by @index
*
* RETURN VALUE:
* Pointer to netdev_queue structure of tx queue specified by @index
*/
/* _VMKLNX_CODECHECK_: netdev_get_tx_queue */
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);
}
/**
* netdev_priv - access network device private data
* @dev: network device
*
* Get network device private data
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netdev_priv */
static inline void *netdev_priv(struct net_device *dev)
{
return (char *)dev + ((sizeof(struct net_device)
+ NETDEV_ALIGN_CONST)
& ~NETDEV_ALIGN_CONST);
}
/**
* SET_MODULE_OWNER - non-operational macro
* @dev: Ignored
*
* A non-operational function provided to help reduce
* kernel ifdefs. It is not supported in this release of ESX.
*
* SYNOPSIS:
* #define SET_MODULE_OWNER(dev)
*
* ESX Deviation Notes:
* A non-operational function provided to help reduce
* kernel ifdefs. It is not supported in this release of ESX.
*
* RETURN VALUE:
* Does not return any value
*
*/
/* _VMKLNX_CODECHECK_: SET_MODULE_OWNER */
#define SET_MODULE_OWNER(dev) do { } while (0)
/* Set the sysfs physical device reference for the network logical device
* if set prior to registration will cause a symlink during initialization.
*/
#if defined(__VMKLNX__)
#define struct_from_member(_memptr, _strct, _member) \
(_strct *)((uint8_t *)(_memptr) - (uint8_t *)&((_strct *) 0)->_member)
/**
* SET_NETDEV_DEV - Associates a PCI device to its network device
* @net: network device
* @ppdev: pointer to the PCI device
*
* Sets the device pointer of the network device datastructure to the device
* pointer of the PCI device.
*
* SYNOPSIS:
* #define SET_NETDEV_DEV(net,ppdev)
*
* ESX Deviation Notes:
* The underlying implementation is different but the functionality is same.
*
* RETURN VALUE:
* None
*
*/
/* _VMKLNX_CODECHECK_: SET_NETDEV_DEV */
#define SET_NETDEV_DEV(net, ppdev) \
do { \
struct pci_dev *pcidev = \
struct_from_member(ppdev, struct pci_dev, dev); \
pcidev->netdev = net; \
net->pdev = pcidev; \
} while (0)
#else /* !defined(__VMKLNX__) */
#define SET_NETDEV_DEV(net, pdev) ((net)->class_dev.dev = (pdev))
#endif /* defined(__VMKLNX__) */
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,
int features);
int (*gso_send_check)(struct sk_buff *skb);
void *af_packet_priv;
struct list_head list;
};
#include <linux/interrupt.h>
#include <linux/notifier.h>
extern struct net_device loopback_dev; /* The loopback */
extern struct net_device *dev_base; /* All devices */
extern rwlock_t dev_base_lock; /* Device list lock */
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(unsigned short type, char *hwaddr);
extern struct net_device *dev_getfirstbyhwtype(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(unsigned short flags,
unsigned short mask);
extern struct net_device *dev_get_by_name(const char *name);
extern struct net_device *__dev_get_by_name(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 int dev_queue_xmit(struct sk_buff *skb);
extern int register_netdevice(struct net_device *dev);
extern int unregister_netdevice(struct net_device *dev);
extern void vmklnx_netif_stop_tx_queue(struct netdev_queue *queue);
extern void vmklnx_netif_start_tx_queue(struct netdev_queue *queue);
extern void vmklnx_netif_set_poll_cna(struct napi_struct *napi);
#if !defined(__VMKLNX__)
extern void free_netdev(struct net_device *dev);
#else /* defined(__VMKLNX__) */
extern void vmklnx_free_netdev(struct kmem_cache_s *pmCache,
struct net_device *dev);
/**
* free_netdev - free network device
* @dev: device
*
* Does the last stage of destroying an allocated device
* interface. The reference to the device object is released.
* If this is the last reference then it will be freed.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: free_netdev */
static void inline free_netdev(struct net_device *dev)
{
vmklnx_free_netdev(THIS_MODULE->skb_cache, dev);
}
#endif /* !defined(__VMKLNX__) */
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 call_netdevice_notifiers(unsigned long val, void *v);
extern struct net_device *dev_get_by_index(int ifindex);
extern struct net_device *__dev_get_by_index(int ifindex);
extern int dev_restart(struct net_device *dev);
#ifdef CONFIG_NETPOLL_TRAP
extern int netpoll_trap(void);
#endif
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);
}
struct softnet_data
{
struct netdev_queue *output_queue;
struct sk_buff_head input_pkt_queue;
struct sk_buff *completion_queue;
};
#if defined(__VMKLNX__)
extern struct softnet_data softnet_data[];
#else /* !defined(__VMKLNX__) */
DECLARE_PER_CPU(struct softnet_data,softnet_data);
#endif /* defined(__VMKLNX__) */
#define HAVE_NETIF_QUEUE
#if defined(__VMKLNX__)
extern void __netif_schedule(struct netdev_queue *dev);
#else /* !defined(__VMKLNX__) */
extern void __netif_schedule(struct net_device *dev);
#endif /* defined(__VMKLNX__) */
static inline void netif_schedule_queue(struct netdev_queue *txq)
{
if (!test_bit(__QUEUE_STATE_XOFF, &txq->state))
__netif_schedule(txq);
}
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));
}
/**
* netif_start_queue - allow transmit
* @txq: transmit queue
*
* Allow upper layers to call the device hard_start_xmit routine on
* tx queue specified by @txq.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_start_queue */
static inline void netif_tx_start_queue(struct netdev_queue *txq)
{
clear_bit(__QUEUE_STATE_XOFF, &txq->state);
#if defined(__VMKLNX__)
vmklnx_netif_start_tx_queue(txq);
#endif /* defined(__VMKLNX__) */
}
/**
* netif_start_queue - allow transmit
* @dev: network device
*
* Allow upper layers to call the device hard_start_xmit routine.
*
* RETURN VALUE:
* This function does not return a value
*/
/* _VMKLNX_CODECHECK_: netif_start_queue */
static inline void netif_start_queue(struct net_device *dev)
{
netif_tx_start_queue(netdev_get_tx_queue(dev, 0));
}
/**
* netif_tx_start_all_queues - allow transmit on all tx queues
* @dev: network device
*
* Allow upper layers to call the device hard_start_xmit routine.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_tx_start_all_queues */
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);
}
}
/**
* netif_set_poll_cna - change net poll callback to cna poll
* @napi: napi structure
*
* Change net poll callback to cna poll
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_set_poll_cna */
static inline void netif_set_poll_cna(struct napi_struct *napi)
{
#if defined(__VMKLNX__)
vmklnx_netif_set_poll_cna(napi);
#endif /* defined(__VMKLNX__) */
}
/**
* netif_tx_wake_queue - restart transmit
* @txq: transmit queue
*
* Allow upper layers to call the device hard_start_xmit routine.
* Used for flow control when transmit resources are available.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_tx_wake_queue */
static inline void netif_tx_wake_queue(struct netdev_queue *txq)
{
if (test_and_clear_bit(__QUEUE_STATE_XOFF, &txq->state)) {
__netif_schedule(txq);
#if defined(__VMKLNX__)
vmklnx_netif_start_tx_queue(txq);
#endif /* defined(__VMKLNX__) */
}
}
/**
* 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.
*
* RETURN VALUE:
* This function does not return a value
*/
/* _VMKLNX_CODECHECK_: netif_wake_queue */
static inline void netif_wake_queue(struct net_device *dev)
{
netif_tx_wake_queue(netdev_get_tx_queue(dev, 0));
}
/**
* netif_tx_wake_all_queues - restart transmit on all tx queues
* @dev: network device
*
* Allow upper layers to call the device hard_start_xmit routine.
* Used for flow control when transmit resources are available.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_tx_wake_all_queues */
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);
}
}
/**
* netif_tx_stop_queue - stop specified transmit queue
* @txq: transmit queue
*
* Stop upper layers calling the device hard_start_xmit routine on
* transmit queue @txq. Used for flow control when transmit resources
* are unavailable.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_tx_stop_queue */
static inline void netif_tx_stop_queue(struct netdev_queue *txq)
{
set_bit(__QUEUE_STATE_XOFF, &txq->state);
#if defined(__VMKLNX__)
vmklnx_netif_stop_tx_queue(txq);
#endif /* defined(__VMKLNX__) */
}
/**
* 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.
*
* RETURN VALUE:
* This function does not return a value
*/
/* _VMKLNX_CODECHECK_: netif_stop_queue */
static inline void netif_stop_queue(struct net_device *dev)
{
netif_tx_stop_queue(netdev_get_tx_queue(dev, 0));
}
/**
* netif_tx_stop_all_queues - suspend transmit on all queues
* @dev: network device
*
* Suspend transmit on all queues by stopping upper layers
* from calling the device hard_start_xmit_routine().
* Used as flow control when transmit resources are not available.
*
* RETURN VALUE:
* This function does not return a value
*/
/* _VMKLNX_CODECHECK_: netif_tx_stop_all_queues */
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);
}
}
/**
* netif_tx_queue_stopped - test if transmit queue is flowblocked
* @txq: transmit queue
*
* Test if specified transmit queue on device is currently unable to send.
*
* RETURN VALUE:
* Non zero value if queue is stopped
* 0 if queue is not stopped
*/
/* _VMKLNX_CODECHECK_: netif_tx_queue_stopped */
static inline int netif_tx_queue_stopped(const struct netdev_queue *txq)
{
return test_bit(__QUEUE_STATE_XOFF, &txq->state);
}
/**
* netif_queue_stopped - test if transmit queue is flowblocked
* @dev: network device
*
* Test if transmit queue on device is currently unable to send.
*
* RETURN VALUE:
* Non zero value if queue is stopped
* 0 if queue is not stopped
*/
/* _VMKLNX_CODECHECK_: netif_queue_stopped */
static inline int netif_queue_stopped(const struct net_device *dev)
{
return netif_tx_queue_stopped(netdev_get_tx_queue(dev, 0));
}
/*
* 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.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_start_subqueue */
static inline void netif_start_subqueue(struct net_device *dev, u16 queue_index)
{
struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index);
clear_bit(__QUEUE_STATE_XOFF, &txq->state);
#if defined(__VMKLNX__)
vmklnx_netif_start_tx_queue(txq);
#endif /* defined(__VMKLNX__) */
}
/**
* 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.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_stop_subqueue */
static inline void netif_stop_subqueue(struct net_device *dev, u16 queue_index)
{
struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index);
set_bit(__QUEUE_STATE_XOFF, &txq->state);
#if defined(__VMKLNX__)
vmklnx_netif_stop_tx_queue(txq);
#endif /* defined(__VMKLNX__) */
}
/**
* 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.
*
* RETURN VALUE:
* Non zero value if subqueue is stopped
* 0 if subqueue is not stopped
*/
/* _VMKLNX_CODECHECK_: netif_subqueue_stopped */
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 test_bit(__QUEUE_STATE_XOFF, &txq->state);
}
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.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_wake_subqueue */
static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index)
{
struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index);
if (test_and_clear_bit(__QUEUE_STATE_XOFF, &txq->state)) {
__netif_schedule(txq);
#if defined(__VMKLNX__)
vmklnx_netif_start_tx_queue(txq);
#endif /* defined(__VMKLNX__) */
}
}
/**
* netif_is_multiqueue - test if device has multiple transmit queues
* @dev: network device
*
* Check if device has multiple transmit queues
*
* RETURN VALUE:
* Non zero value if device is multiqueue
* 0 if the device is not a multiqueue device
*/
/* _VMKLNX_CODECHECK_: netif_is_multiqueue */
static inline int netif_is_multiqueue(const struct net_device *dev)
{
return (dev->num_tx_queues > 1);
}
/**
* netif_running - Test if up
* @dev: network device
*
* Test if the device has been brought up.
*
* RETURN VALUE:
* Non zero value if device is up
* 0 if the device is not up
*/
/* _VMKLNX_CODECHECK_: netif_running */
static inline int netif_running(const struct net_device *dev)
{
return test_bit(__LINK_STATE_START, &dev->state);
}
/* Use this variant when it is known for sure that it
* is executing from interrupt context.
*/
#if !defined(__VMKLNX__)
static inline void dev_kfree_skb_irq(struct sk_buff *skb)
{
if (atomic_dec_and_test(&skb->users)) {
struct softnet_data *sd;
unsigned long flags;
local_irq_save(flags);
sd = &__get_cpu_var(softnet_data);
skb->next = sd->completion_queue;
sd->completion_queue = skb;
raise_softirq_irqoff(NET_TX_SOFTIRQ);
local_irq_restore(flags);
}
}
/* Use this variant in places where it could be invoked
* either from interrupt or non-interrupt context.
*/
extern void dev_kfree_skb_any(struct sk_buff *skb);
#endif /* !defined(__VMKLNX__) */
#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 int dev_valid_name(const char *name);
extern int dev_ioctl(unsigned int cmd, void __user *);
#if defined(__VMKLNX__)
extern int vmklnx_net_dev_ethtool(struct ifreq *, struct net_device *);
#endif /* defined(__VMKLNX__) */
extern int dev_ethtool(struct ifreq *);
extern unsigned dev_get_flags(const struct net_device *);
extern int dev_change_flags(struct net_device *, unsigned);
extern int dev_change_name(struct net_device *, char *);
extern int dev_set_mtu(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);
extern void dev_init(void);
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 and allow it to be freed.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: dev_put */
static inline void dev_put(struct net_device *dev)
{
atomic_dec(&dev->refcnt);
}
/**
* dev_hold - get reference to device
* @dev: network device
*
* Hold reference to device to keep it from being freed.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: dev_hold */
static inline void dev_hold(struct net_device *dev)
{
atomic_inc(&dev->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);
/**
* netif_carrier_ok - test if carrier present
* @dev: network device
*
* Check if carrier is present on device
*
* RETURN VALUE:
* Non zero value if carrier is present
* 0 if carrier is not present
*/
/* _VMKLNX_CODECHECK_: netif_carrier_ok */
static inline int netif_carrier_ok(const struct net_device *dev)
{
return !test_bit(__LINK_STATE_NOCARRIER, &dev->state);
}
#if !defined(__VMKLNX__)
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);
#else /* defined(__VMKLNX__) */
static inline void __netdev_watchdog_up(struct net_device *dev)
{
/* Do nothing */
}
/**
* netif_toggled_set - Set toggled flag
* @dev: network device
*
* Set the toggled flag
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_toggled_set */
static inline void netif_toggled_set(struct net_device *dev)
{
set_bit(__LINK_STATE_TOGGLED, &dev->state);
}
/**
* netif_toggled_clear - Clear toggled flag
* @dev: network device
*
* Clear the toggled flag
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_toggled_clear */
static inline void netif_toggled_clear(struct net_device *dev)
{
clear_bit(__LINK_STATE_TOGGLED, &dev->state);
}
/**
* netif_toggled_test_and_clear - Check & clear toggled flag
* @dev: network device
*
* Clear the toggled flag, return the original value
*
* RETURN VALUE:
* Original state of the toggled bit
*/
/* _VMKLNX_CODECHECK_: netif_toggled_clear */
static inline int netif_toggled_test_and_clear(struct net_device *dev)
{
return test_and_clear_bit(__LINK_STATE_TOGGLED, &dev->state);
}
/**
* netif_toggled_check - Check toggled flag
* @dev: network device
*
* Check if device's toggled flag is set or not
*
* RETURN VALUE:
* 1 if toggled flag is set, 0 otherwise
*/
/* _VMKLNX_CODECHECK_: netif_toggled_check */
static inline int netif_toggled_check(struct net_device *dev)
{
return test_bit(__LINK_STATE_TOGGLED, &dev->state);
}
/**
* netif_carrier_on - Set carrier
* @dev: network device
*
* Device has detected that carrier
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_carrier_on */
static inline void netif_carrier_on(struct net_device *dev)
{
if (test_and_clear_bit(__LINK_STATE_NOCARRIER, &dev->state))
netif_toggled_set(dev);
if (netif_running(dev))
__netdev_watchdog_up(dev);
}
/**
* netif_carrier_off - clear carrier
* @dev: network device
*
* Device has detected loss of carrier.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_carrier_off */
static inline void netif_carrier_off(struct net_device *dev)
{
if (!test_and_set_bit(__LINK_STATE_NOCARRIER, &dev->state));
}
#endif /* !defined(__VMKLNX__) */
static inline void netif_dormant_on(struct net_device *dev)
{
if (!test_and_set_bit(__LINK_STATE_DORMANT, &dev->state))
linkwatch_fire_event(dev);
}
static inline void netif_dormant_off(struct net_device *dev)
{
if (test_and_clear_bit(__LINK_STATE_DORMANT, &dev->state))
linkwatch_fire_event(dev);
}
static inline int netif_dormant(const struct net_device *dev)
{
return test_bit(__LINK_STATE_DORMANT, &dev->state);
}
static inline int netif_oper_up(const struct net_device *dev) {
return (dev->operstate == IF_OPER_UP ||
dev->operstate == IF_OPER_UNKNOWN /* backward compat */);
}
/* Hot-plugging. */
/**
* netif_device_present - Is driver available or removed
* @dev: network device
*
* Check if device has not been removed from system
*
* RETURN VALUE:
* Non zero value if device has not been removed from system.
* 0 if the device has removed.
*/
/* _VMKLNX_CODECHECK_: netif_device_present */
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;
}
#if defined(__VMKLNX__)
/**
* netif_rx_schedule_prep - test if receive needs to be scheduled but only if up
* @dev: network device
* @napi: napi structure
*
* Test if receive needs to be scheduled but only if up
*
* RETURN VALUE:
* 1 if receive is up and needs to be scheduled, 0 otherwise
*/
/* _VMKLNX_CODECHECK_: netif_rx_schedule_prep */
static inline int netif_rx_schedule_prep(struct net_device *dev,
struct napi_struct *napi)
{
return napi_schedule_prep(napi);
}
/* Add interface to tail of rx poll list. This assumes that _prep has
* already been called and returned 1.
*/
/**
* __netif_rx_schedule - schedule napi context for rx polling
* @dev: network device
* @napi: napi structure
*
* Schedule napi context for rx polling
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: __netif_rx_schedule */
static inline void __netif_rx_schedule(struct net_device *dev,
struct napi_struct *napi)
{
__napi_schedule(napi);
}
/**
* netif_rx_schedule - schedule napi context for rx polling
* @dev: network device
* @napi: napi structure
*
* Test if receive needs to be scheduled and schedule napi
* context for rx polling. Called by irq handler.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_rx_schedule */
static inline void netif_rx_schedule(struct net_device *dev,
struct napi_struct *napi)
{
if (netif_rx_schedule_prep(dev, napi))
__netif_rx_schedule(dev, napi);
}
/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete(). */
static inline int netif_rx_reschedule(struct net_device *dev,
struct napi_struct *napi)
{
if (napi_schedule_prep(napi)) {
__netif_rx_schedule(dev, napi);
return 1;
}
return 0;
}
/**
* __netif_rx_complete - Remove interface from poll list
* @dev: network device
* @napi: napi structure
*
* Same as netif_rx_complete, except that local_irq_save(flags)
* has already been issued
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: __netif_rx_complete */
static inline void __netif_rx_complete(struct net_device *dev,
struct napi_struct *napi)
{
__napi_complete(napi);
}
/* 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().
*/
/**
* netif_rx_complete - Remove interface from poll list
* @dev: network device
* @napi: napi structure
*
* This primitive is called by dev->poll(), when it completes the work.
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: netif_rx_complete */
static inline void netif_rx_complete(struct net_device *dev,
struct napi_struct *napi)
{
/*
* 2008: irq shield is only intended to protect napi->poll_list.
* Since poll_list is not supported in vmklinx, thus no need for the irq shield.
*/
/* local_irq_save(flags); */
__netif_rx_complete(dev, napi);
/* local_irq_restore(flags); */
}
#else /* !defined(__VMKLNX__) */
/*
* vmklinux doesn't support old napi anymore so let's drop this code.
*/
/* Test if receive needs to be scheduled */
static inline int __netif_rx_schedule_prep(struct net_device *dev)
{
return !test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
}
/**
* netif_rx_schedule_prep - test if receive needs to be scheduled but only if up
* @dev: ignored
* @napi: napi context
*
* Test if receive needs to be scheduled but only if up
*
* RETURN VALUE:
* 1 if receive is up and needs to be scheduled, 0 otherwise
*/
/* _VMKLNX_CODECHECK_: netif_rx_schedule_prep */
static inline int netif_rx_schedule_prep(struct net_device *dev)
{
return netif_running(dev) && __netif_rx_schedule_prep(dev);
}
/* Add interface to tail of rx poll list. This assumes that _prep has
* already been called and returned 1.
*/
extern void __netif_rx_schedule(struct net_device *dev);
/* Try to reschedule poll. Called by irq handler. */
static inline void netif_rx_schedule(struct net_device *dev)
{
if (netif_rx_schedule_prep(dev))
__netif_rx_schedule(dev);
}
/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete().
*/
extern int netif_rx_reschedule(struct net_device *dev, int undo);
/* 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().
*/
static inline void netif_rx_complete(struct net_device *dev)
{
unsigned long flags;
local_irq_save(flags);
BUG_ON(!test_bit(__LINK_STATE_RX_SCHED, &dev->state));
list_del_init(&dev->poll_list);
smp_mb__before_clear_bit();
clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
local_irq_restore(flags);
}
extern void netif_poll_disable(struct net_device *dev);
static inline void netif_poll_enable(struct net_device *dev)
{
clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
}
/* same as netif_rx_complete, except that local_irq_save(flags)
* has already been issued
*/
static inline void __netif_rx_complete(struct net_device *dev)
{
BUG_ON(!test_bit(__LINK_STATE_RX_SCHED, &dev->state));
if (!list_empty(&dev->poll_list))
list_del_init(&dev->poll_list);
smp_mb__before_clear_bit();
clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
}
#endif /* defined(__VMKLNX__) */
/**
* __netif_tx_lock - grab network device transmit lock on transmit queue
* @txq: transmit queue
* @cpu: cpu number of lock owner
*
* Get network device transmit lock on transmit queue specified by @txq
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: __netif_tx_lock */
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();
}
/**
* netif_tx_lock - grab network device transmit lock
* @dev: network device
* @cpu: cpu number of lock owner
*
* Get network device transmit lock
*
* RETURN VALUE:
* This function does not return a value
*/
/* _VMKLNX_CODECHECK_: netif_tx_lock */
static inline void netif_tx_lock(struct net_device *dev)
{
int cpu = smp_processor_id();
unsigned int i;
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_lock_bh - acquire network device transmit lock
* @dev: network device
*
* Acquire netowrk device transmit lock
*
* RETURN VALUE:
* This function does not return a value
*/
/* _VMKLNX_CODECHECK_: netif_tx_lock_bh */
static inline void netif_tx_lock_bh(struct net_device *dev)
{
netif_tx_lock(dev);
}
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;
}
/**
* __netif_tx_unlock - release network device transmit lock on transmit queue
* @txq: transmit queue
*
* Release network device transmit lock on transmit queue specified by @txq
*
* RETURN VALUE:
* None
*/
/* _VMKLNX_CODECHECK_: __netif_tx_unlock */
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);
}
/**
* netif_tx_unlock - release network device transmit lock
* @dev: network device
*
* Release network device transmit lock
*
* RETURN VALUE:
* This function does not return a value
*/
/* _VMKLNX_CODECHECK_: netif_tx_unlock */
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);
__netif_tx_unlock(txq);
}
}
/**
* netif_tx_unlock_bh - release network device transmit lock
* @dev: network device
*
* Release netowrk device transmit lock
*
* RETURN VALUE:
* This function does not return a value
*/
/* _VMKLNX_CODECHECK_: netif_tx_unlock_bh */
static inline void netif_tx_unlock_bh(struct net_device *dev)
{
netif_tx_unlock(dev);
}
/**
* netif_tx_disable - disable transmit
* @dev: network device
*
* Disable transmit
*
* RETURN VALUE:
* This function does not return a value
*/
/* _VMKLNX_CODECHECK_: netif_tx_disable */
static inline void netif_tx_disable(struct net_device *dev)
{
unsigned int i;
netif_tx_lock_bh(dev);
for (i = 0; i < dev->num_tx_queues; i++) {
struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
netif_tx_stop_queue(txq);
}
netif_tx_unlock_bh(dev);
}
/* These functions live elsewhere (drivers/net/net_init.c, but related) */
extern void ether_setup(struct net_device *dev);
#if defined(__VMKLNX__)
/**
* alloc_netdev_mq - allocate network device
* @sizeof_priv: size of private data to allocate space for
* @name: device name format string
* @setup: callback to initialize device
* @queue_count: the number of subqueues to allocate
*
* Allocates a struct net_device with private data area for driver use
* and performs basic initialization. Also allocates subquue structs
* for each queue on the device at the end of the netdevice.
*
* RETURN VALUE:
* Pointer to allocated struct net_device on success
* %NULL on error
*/
/* _VMKLNX_CODECHECK_: alloc_netdev_mq */
static inline struct net_device *
alloc_netdev_mq(int sizeof_priv, const char *name,
void (*setup)(struct net_device *),
unsigned int queue_count)
{
return vmklnx_alloc_netdev_mq(THIS_MODULE,
sizeof_priv,
name,
setup,
queue_count);
}
#else /* !defined(__VMKLNX__) */
extern struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
void (*setup)(struct net_device *),
unsigned int queue_count);
#endif /* defined(__VMKLNX__) */
/**
* alloc_netdev - allocate network device
* @sizeof_priv: size of private data to allocate space for
* @name: device name format string
* @setup: callback to initialize device
*
* Allocates a struct net_device with private data area for driver use and
* performs basic initialization.
*
* SYNOPSIS:
* #define alloc_netdev(sizeof_priv, name, setup)
*
* RETURN VALUE:
* The pointer to the newly allocated net_device struct if successful, otherwise NULL.
*
*/
/* _VMKLNX_CODECHECK_: alloc_netdev */
#define alloc_netdev(sizeof_priv, name, setup) \
alloc_netdev_mq(sizeof_priv, name, setup, 1)
extern int register_netdev(struct net_device *dev);
extern void unregister_netdev(struct net_device *dev);
/* Functions used for multicast support */
extern void dev_mc_upload(struct net_device *dev);
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);
extern void dev_mc_discard(struct net_device *dev);
extern void dev_set_promiscuity(struct net_device *dev, int inc);
extern void dev_set_allmulti(struct net_device *dev, int inc);
extern void netdev_state_change(struct net_device *dev);
extern void netdev_features_change(struct net_device *dev);
/* Load a device via the kmod */
extern void dev_load(const char *name);
extern void dev_mcast_init(void);
extern int netdev_max_backlog;
extern int weight_p;
extern int netdev_set_master(struct net_device *dev, struct net_device *master);
extern int skb_checksum_help(struct sk_buff *skb, int inward);
#if defined(__VMKLNX__)
/**
* skb_gso_segment - non-operational function
* @skb: Ignored
* @features: Ignored
*
* A non-operational function provided to help reduce
* kernel ifdefs. It is not supported in this release of ESX.
*
* ESX Deviation Notes:
* A non-operational function provided to help reduce
* kernel ifdefs. It is not supported in this release of ESX.
*
* RETURN VALUE:
* Returns NULL always.
*
*/
/* _VMKLNX_CODECHECK_: skb_gso_segment */
static inline struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
{
/* PR 260085 : Should we expose TSO segmentation functions of vmkernel to vmkapi ? */
return NULL;
}
#else /* !defined(__VMKLNX__) */
extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features);
#endif /* defined(__VMKLNX__) */
#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 void linkwatch_run_queue(void);
static inline int net_gso_ok(int 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, int features)
{
return net_gso_ok(features, skb_shinfo(skb)->gso_type);
}
static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb)
{
return skb_is_gso(skb) &&
(!skb_gso_ok(skb, dev->features) ||
unlikely(skb->ip_summed != CHECKSUM_HW));
}
static inline void netif_set_gso_max_size(struct net_device *dev,
unsigned int size)
{
dev->gso_max_size = size;
}
#if !defined(__VMKLNX__)
/* On bonding slaves other than the currently active slave, suppress
* duplicates except for 802.3ad ETH_P_SLOW and alb non-mcast/bcast.
*/
static inline int skb_bond_should_drop(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
struct net_device *master = dev->master;
if (master &&
(dev->priv_flags & IFF_SLAVE_INACTIVE)) {
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;
}
return 0;
}
#endif /* !defined(__VMKLNX__) */
#endif /* __KERNEL__ */
#endif /* _LINUX_DEV_H */
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