net/mac80211/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 config MAC80211
   3         tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
   4         depends on CFG80211
   5         select CRYPTO
   6         select CRYPTO_LIB_ARC4
   7         select CRYPTO_AES
   8         select CRYPTO_CCM
   9         select CRYPTO_GCM
  10         select CRYPTO_CMAC
  11         select CRC32
  12         ---help---
  13           This option enables the hardware independent IEEE 802.11
  14           networking stack.
  15
  16 comment "CFG80211 needs to be enabled for MAC80211"
  17         depends on CFG80211=n
  18
  19 if MAC80211 != n
  20
  21 config MAC80211_HAS_RC
  22         bool
  23
  24 config MAC80211_RC_MINSTREL
  25         bool "Minstrel" if EXPERT
  26         select MAC80211_HAS_RC
  27         default y
  28         ---help---
  29           This option enables the 'minstrel' TX rate control algorithm
  30
  31 choice
  32         prompt "Default rate control algorithm"
  33         depends on MAC80211_HAS_RC
  34         default MAC80211_RC_DEFAULT_MINSTREL
  35         ---help---
  36           This option selects the default rate control algorithm
  37           mac80211 will use. Note that this default can still be
  38           overridden through the ieee80211_default_rc_algo module
  39           parameter if different algorithms are available.
  40
  41 config MAC80211_RC_DEFAULT_MINSTREL
  42         bool "Minstrel"
  43         depends on MAC80211_RC_MINSTREL
  44         ---help---
  45           Select Minstrel as the default rate control algorithm.
  46
  47
  48 endchoice
  49
  50 config MAC80211_RC_DEFAULT
  51         string
  52         default "minstrel_ht" if MAC80211_RC_DEFAULT_MINSTREL
  53         default ""
  54
  55 endif
  56
  57 comment "Some wireless drivers require a rate control algorithm"
  58         depends on MAC80211 && MAC80211_HAS_RC=n
  59
  60 config MAC80211_MESH
  61         bool "Enable mac80211 mesh networking support"
  62         depends on MAC80211
  63         ---help---
  64           Select this option to enable 802.11 mesh operation in mac80211
  65           drivers that support it.  802.11 mesh connects multiple stations
  66           over (possibly multi-hop) wireless links to form a single logical
  67           LAN.
  68
  69 config MAC80211_LEDS
  70         bool "Enable LED triggers"
  71         depends on MAC80211
  72         depends on LEDS_CLASS
  73         select LEDS_TRIGGERS
  74         ---help---
  75           This option enables a few LED triggers for different
  76           packet receive/transmit events.
  77
  78 config MAC80211_DEBUGFS
  79         bool "Export mac80211 internals in DebugFS"
  80         depends on MAC80211 && DEBUG_FS
  81         ---help---
  82           Select this to see extensive information about
  83           the internal state of mac80211 in debugfs.
  84
  85           Say N unless you know you need this.
  86
  87 config MAC80211_MESSAGE_TRACING
  88         bool "Trace all mac80211 debug messages"
  89         depends on MAC80211
  90         ---help---
  91           Select this option to have mac80211 register the
  92           mac80211_msg trace subsystem with tracepoints to
  93           collect all debugging messages, independent of
  94           printing them into the kernel log.
  95
  96           The overhead in this option is that all the messages
  97           need to be present in the binary and formatted at
  98           runtime for tracing.
  99
 100 menuconfig MAC80211_DEBUG_MENU
 101         bool "Select mac80211 debugging features"
 102         depends on MAC80211
 103         ---help---
 104           This option collects various mac80211 debug settings.
 105
 106 config MAC80211_NOINLINE
 107         bool "Do not inline TX/RX handlers"
 108         depends on MAC80211_DEBUG_MENU
 109         ---help---
 110           This option affects code generation in mac80211, when
 111           selected some functions are marked "noinline" to allow
 112           easier debugging of problems in the transmit and receive
 113           paths.
 114
 115           This option increases code size a bit and inserts a lot
 116           of function calls in the code, but is otherwise safe to
 117           enable.
 118
 119           If unsure, say N unless you expect to be finding problems
 120           in mac80211.
 121
 122 config MAC80211_VERBOSE_DEBUG
 123         bool "Verbose debugging output"
 124         depends on MAC80211_DEBUG_MENU
 125         ---help---
 126           Selecting this option causes mac80211 to print out
 127           many debugging messages. It should not be selected
 128           on production systems as some of the messages are
 129           remotely triggerable.
 130
 131           Do not select this option.
 132
 133 config MAC80211_MLME_DEBUG
 134         bool "Verbose managed MLME output"
 135         depends on MAC80211_DEBUG_MENU
 136         ---help---
 137           Selecting this option causes mac80211 to print out
 138           debugging messages for the managed-mode MLME. It
 139           should not be selected on production systems as some
 140           of the messages are remotely triggerable.
 141
 142           Do not select this option.
 143
 144 config MAC80211_STA_DEBUG
 145         bool "Verbose station debugging"
 146         depends on MAC80211_DEBUG_MENU
 147         ---help---
 148           Selecting this option causes mac80211 to print out
 149           debugging messages for station addition/removal.
 150
 151           Do not select this option.
 152
 153 config MAC80211_HT_DEBUG
 154         bool "Verbose HT debugging"
 155         depends on MAC80211_DEBUG_MENU
 156         ---help---
 157           This option enables 802.11n High Throughput features
 158           debug tracing output.
 159
 160           It should not be selected on production systems as some
 161           of the messages are remotely triggerable.
 162
 163           Do not select this option.
 164
 165 config MAC80211_OCB_DEBUG
 166         bool "Verbose OCB debugging"
 167         depends on MAC80211_DEBUG_MENU
 168         ---help---
 169           Selecting this option causes mac80211 to print out
 170           very verbose OCB debugging messages. It should not
 171           be selected on production systems as those messages
 172           are remotely triggerable.
 173
 174           Do not select this option.
 175
 176 config MAC80211_IBSS_DEBUG
 177         bool "Verbose IBSS debugging"
 178         depends on MAC80211_DEBUG_MENU
 179         ---help---
 180           Selecting this option causes mac80211 to print out
 181           very verbose IBSS debugging messages. It should not
 182           be selected on production systems as those messages
 183           are remotely triggerable.
 184
 185           Do not select this option.
 186
 187 config MAC80211_PS_DEBUG
 188         bool "Verbose powersave mode debugging"
 189         depends on MAC80211_DEBUG_MENU
 190         ---help---
 191           Selecting this option causes mac80211 to print out very
 192           verbose power save mode debugging messages (when mac80211
 193           is an AP and has power saving stations.)
 194           It should not be selected on production systems as those
 195           messages are remotely triggerable.
 196
 197           Do not select this option.
 198
 199 config MAC80211_MPL_DEBUG
 200         bool "Verbose mesh peer link debugging"
 201         depends on MAC80211_DEBUG_MENU
 202         depends on MAC80211_MESH
 203         ---help---
 204           Selecting this option causes mac80211 to print out very
 205           verbose mesh peer link debugging messages (when mac80211
 206           is taking part in a mesh network).
 207           It should not be selected on production systems as those
 208           messages are remotely triggerable.
 209
 210           Do not select this option.
 211
 212 config MAC80211_MPATH_DEBUG
 213         bool "Verbose mesh path debugging"
 214         depends on MAC80211_DEBUG_MENU
 215         depends on MAC80211_MESH
 216         ---help---
 217           Selecting this option causes mac80211 to print out very
 218           verbose mesh path selection debugging messages (when mac80211
 219           is taking part in a mesh network).
 220           It should not be selected on production systems as those
 221           messages are remotely triggerable.
 222
 223           Do not select this option.
 224
 225 config MAC80211_MHWMP_DEBUG
 226         bool "Verbose mesh HWMP routing debugging"
 227         depends on MAC80211_DEBUG_MENU
 228         depends on MAC80211_MESH
 229         ---help---
 230           Selecting this option causes mac80211 to print out very
 231           verbose mesh routing (HWMP) debugging messages (when mac80211
 232           is taking part in a mesh network).
 233           It should not be selected on production systems as those
 234           messages are remotely triggerable.
 235
 236           Do not select this option.
 237
 238 config MAC80211_MESH_SYNC_DEBUG
 239         bool "Verbose mesh synchronization debugging"
 240         depends on MAC80211_DEBUG_MENU
 241         depends on MAC80211_MESH
 242         ---help---
 243           Selecting this option causes mac80211 to print out very verbose mesh
 244           synchronization debugging messages (when mac80211 is taking part in a
 245           mesh network).
 246
 247           Do not select this option.
 248
 249 config MAC80211_MESH_CSA_DEBUG
 250         bool "Verbose mesh channel switch debugging"
 251         depends on MAC80211_DEBUG_MENU
 252         depends on MAC80211_MESH
 253         ---help---
 254           Selecting this option causes mac80211 to print out very verbose mesh
 255           channel switch debugging messages (when mac80211 is taking part in a
 256           mesh network).
 257
 258           Do not select this option.
 259
 260 config MAC80211_MESH_PS_DEBUG
 261         bool "Verbose mesh powersave debugging"
 262         depends on MAC80211_DEBUG_MENU
 263         depends on MAC80211_MESH
 264         ---help---
 265           Selecting this option causes mac80211 to print out very verbose mesh
 266           powersave debugging messages (when mac80211 is taking part in a
 267           mesh network).
 268
 269           Do not select this option.
 270
 271 config MAC80211_TDLS_DEBUG
 272         bool "Verbose TDLS debugging"
 273         depends on MAC80211_DEBUG_MENU
 274         ---help---
 275           Selecting this option causes mac80211 to print out very
 276           verbose TDLS selection debugging messages (when mac80211
 277           is a TDLS STA).
 278           It should not be selected on production systems as those
 279           messages are remotely triggerable.
 280
 281           Do not select this option.
 282
 283 config MAC80211_DEBUG_COUNTERS
 284         bool "Extra statistics for TX/RX debugging"
 285         depends on MAC80211_DEBUG_MENU
 286         depends on MAC80211_DEBUGFS
 287         ---help---
 288           Selecting this option causes mac80211 to keep additional
 289           and very verbose statistics about TX and RX handler use
 290           as well as a few selected dot11 counters. These will be
 291           exposed in debugfs.
 292
 293           Note that some of the counters are not concurrency safe
 294           and may thus not always be accurate.
 295
 296           If unsure, say N.
 297
 298 config MAC80211_STA_HASH_MAX_SIZE
 299         int "Station hash table maximum size" if MAC80211_DEBUG_MENU
 300         default 0
 301         ---help---
 302           Setting this option to a low value (e.g. 4) allows testing the
 303           hash table with collisions relatively deterministically (just
 304           connect more stations than the number selected here.)
 305
 306           If unsure, leave the default of 0.