STRUCT IEEE80211_VIF(9)

NAME
struct_ieee80211_vif - per-interface data

SYNOPSIS

struct ieee80211_vif {
  enum nl80211_iftype type;
  struct ieee80211_bss_conf bss_conf;
  u8 addr[ETH_ALEN];
  bool p2p;
  bool csa_active;
  u8 cab_queue;
  u8 hw_queue[IEEE80211_NUM_ACS];
  struct ieee80211_chanctx_conf __rcu * chanctx_conf;
  u32 driver_flags;
#ifdef CONFIG_MAC80211_DEBUGFS
  struct dentry * debugfs_dir;
#endif
  u8 drv_priv[0];
};

MEMBERS

type
    type of this virtual interface

bss_conf
    BSS configuration for this interface, either our own or the BSS we're associated to

addr[ETH_ALEN]
    address of this interface

p2p
    indicates whether this AP or STA interface is a p2p interface, i.e. a GO or p2p-sta respectively

csa_active
    marks whether a channel switch is going on. Internally it is write-protected by sdata_lock and local->mtx so holding either is fine for read access.

cab_queue
    content-after-beacon (DTIM beacon really) queue, AP mode only

hw_queue[IEEE80211_NUM_ACS]
    hardware queue for each AC

chanctx_conf
    The channel context this interface is assigned to, or NULL when it is not assigned. This pointer is RCU-protected due to the TX path needing to access it; even though the netdev carrier will always be off when it is NULL there can still be races and packets could be processed after it switches back to NULL.

driver_flags
    flags/capabilities the driver has for this interface, these need to be set (or cleared) when the interface is added or, if supported by the driver, the interface type is changed at runtime, mac80211 will never touch this field

debugfs_dir
    debugfs dentry, can be used by drivers to create own per interface debug files. Note that it will be NULL for the virtual monitor interface (if that is requested.)

drv_priv[0]
    data area for driver use, will always be aligned to sizeof(void *).

DESCRIPTION

Data in this structure is continually present for driver use during the life of a virtual interface.

AUTHOR

Johannes Berg <johannes@sipsolutions.net>
    Author.

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