| Johannes Berg | dbbea67 | 2008-02-26 14:34:06 +0100 | [diff] [blame] | 1 | <?xml version="1.0" encoding="UTF-8"?> | 
|  | 2 | <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" | 
|  | 3 | "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []> | 
|  | 4 |  | 
|  | 5 | <book id="mac80211-developers-guide"> | 
|  | 6 | <bookinfo> | 
|  | 7 | <title>The mac80211 subsystem for kernel developers</title> | 
|  | 8 |  | 
|  | 9 | <authorgroup> | 
|  | 10 | <author> | 
|  | 11 | <firstname>Johannes</firstname> | 
|  | 12 | <surname>Berg</surname> | 
|  | 13 | <affiliation> | 
|  | 14 | <address><email>johannes@sipsolutions.net</email></address> | 
|  | 15 | </affiliation> | 
|  | 16 | </author> | 
|  | 17 | </authorgroup> | 
|  | 18 |  | 
|  | 19 | <copyright> | 
|  | 20 | <year>2007</year> | 
|  | 21 | <year>2008</year> | 
|  | 22 | <holder>Johannes Berg</holder> | 
|  | 23 | </copyright> | 
|  | 24 |  | 
|  | 25 | <legalnotice> | 
|  | 26 | <para> | 
|  | 27 | This documentation is free software; you can redistribute | 
|  | 28 | it and/or modify it under the terms of the GNU General Public | 
|  | 29 | License version 2 as published by the Free Software Foundation. | 
|  | 30 | </para> | 
|  | 31 |  | 
|  | 32 | <para> | 
|  | 33 | This documentation is distributed in the hope that it will be | 
|  | 34 | useful, but WITHOUT ANY WARRANTY; without even the implied | 
|  | 35 | warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | 
|  | 36 | See the GNU General Public License for more details. | 
|  | 37 | </para> | 
|  | 38 |  | 
|  | 39 | <para> | 
|  | 40 | You should have received a copy of the GNU General Public | 
|  | 41 | License along with this documentation; if not, write to the Free | 
|  | 42 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, | 
|  | 43 | MA 02111-1307 USA | 
|  | 44 | </para> | 
|  | 45 |  | 
|  | 46 | <para> | 
|  | 47 | For more details see the file COPYING in the source | 
|  | 48 | distribution of Linux. | 
|  | 49 | </para> | 
|  | 50 | </legalnotice> | 
|  | 51 |  | 
|  | 52 | <abstract> | 
|  | 53 | !Pinclude/net/mac80211.h Introduction | 
|  | 54 | !Pinclude/net/mac80211.h Warning | 
|  | 55 | </abstract> | 
|  | 56 | </bookinfo> | 
|  | 57 |  | 
|  | 58 | <toc></toc> | 
|  | 59 |  | 
|  | 60 | <!-- | 
|  | 61 | Generally, this document shall be ordered by increasing complexity. | 
|  | 62 | It is important to note that readers should be able to read only | 
|  | 63 | the first few sections to get a working driver and only advanced | 
|  | 64 | usage should require reading the full document. | 
|  | 65 | --> | 
|  | 66 |  | 
|  | 67 | <part> | 
|  | 68 | <title>The basic mac80211 driver interface</title> | 
|  | 69 | <partintro> | 
|  | 70 | <para> | 
|  | 71 | You should read and understand the information contained | 
|  | 72 | within this part of the book while implementing a driver. | 
|  | 73 | In some chapters, advanced usage is noted, that may be | 
|  | 74 | skipped at first. | 
|  | 75 | </para> | 
|  | 76 | <para> | 
|  | 77 | This part of the book only covers station and monitor mode | 
|  | 78 | functionality, additional information required to implement | 
|  | 79 | the other modes is covered in the second part of the book. | 
|  | 80 | </para> | 
|  | 81 | </partintro> | 
|  | 82 |  | 
|  | 83 | <chapter id="basics"> | 
|  | 84 | <title>Basic hardware handling</title> | 
|  | 85 | <para>TBD</para> | 
|  | 86 | <para> | 
|  | 87 | This chapter shall contain information on getting a hw | 
|  | 88 | struct allocated and registered with mac80211. | 
|  | 89 | </para> | 
|  | 90 | <para> | 
|  | 91 | Since it is required to allocate rates/modes before registering | 
|  | 92 | a hw struct, this chapter shall also contain information on setting | 
|  | 93 | up the rate/mode structs. | 
|  | 94 | </para> | 
|  | 95 | <para> | 
|  | 96 | Additionally, some discussion about the callbacks and | 
|  | 97 | the general programming model should be in here, including | 
|  | 98 | the definition of ieee80211_ops which will be referred to | 
|  | 99 | a lot. | 
|  | 100 | </para> | 
|  | 101 | <para> | 
|  | 102 | Finally, a discussion of hardware capabilities should be done | 
|  | 103 | with references to other parts of the book. | 
|  | 104 | </para> | 
|  | 105 | <!-- intentionally multiple !F lines to get proper order --> | 
|  | 106 | !Finclude/net/mac80211.h ieee80211_hw | 
|  | 107 | !Finclude/net/mac80211.h ieee80211_hw_flags | 
|  | 108 | !Finclude/net/mac80211.h SET_IEEE80211_DEV | 
|  | 109 | !Finclude/net/mac80211.h SET_IEEE80211_PERM_ADDR | 
|  | 110 | !Finclude/net/mac80211.h ieee80211_ops | 
|  | 111 | !Finclude/net/mac80211.h ieee80211_alloc_hw | 
|  | 112 | !Finclude/net/mac80211.h ieee80211_register_hw | 
|  | 113 | !Finclude/net/mac80211.h ieee80211_get_tx_led_name | 
|  | 114 | !Finclude/net/mac80211.h ieee80211_get_rx_led_name | 
|  | 115 | !Finclude/net/mac80211.h ieee80211_get_assoc_led_name | 
|  | 116 | !Finclude/net/mac80211.h ieee80211_get_radio_led_name | 
|  | 117 | !Finclude/net/mac80211.h ieee80211_unregister_hw | 
|  | 118 | !Finclude/net/mac80211.h ieee80211_free_hw | 
|  | 119 | </chapter> | 
|  | 120 |  | 
|  | 121 | <chapter id="phy-handling"> | 
|  | 122 | <title>PHY configuration</title> | 
|  | 123 | <para>TBD</para> | 
|  | 124 | <para> | 
|  | 125 | This chapter should describe PHY handling including | 
|  | 126 | start/stop callbacks and the various structures used. | 
|  | 127 | </para> | 
|  | 128 | !Finclude/net/mac80211.h ieee80211_conf | 
|  | 129 | !Finclude/net/mac80211.h ieee80211_conf_flags | 
|  | 130 | </chapter> | 
|  | 131 |  | 
|  | 132 | <chapter id="iface-handling"> | 
|  | 133 | <title>Virtual interfaces</title> | 
|  | 134 | <para>TBD</para> | 
|  | 135 | <para> | 
|  | 136 | This chapter should describe virtual interface basics | 
|  | 137 | that are relevant to the driver (VLANs, MGMT etc are not.) | 
|  | 138 | It should explain the use of the add_iface/remove_iface | 
|  | 139 | callbacks as well as the interface configuration callbacks. | 
|  | 140 | </para> | 
|  | 141 | <para>Things related to AP mode should be discussed there.</para> | 
|  | 142 | <para> | 
|  | 143 | Things related to supporting multiple interfaces should be | 
|  | 144 | in the appropriate chapter, a BIG FAT note should be here about | 
|  | 145 | this though and the recommendation to allow only a single | 
|  | 146 | interface in STA mode at first! | 
|  | 147 | </para> | 
| Johannes Berg | dbbea67 | 2008-02-26 14:34:06 +0100 | [diff] [blame] | 148 | !Finclude/net/mac80211.h ieee80211_if_init_conf | 
|  | 149 | !Finclude/net/mac80211.h ieee80211_if_conf | 
|  | 150 | </chapter> | 
|  | 151 |  | 
|  | 152 | <chapter id="rx-tx"> | 
|  | 153 | <title>Receive and transmit processing</title> | 
|  | 154 | <sect1> | 
|  | 155 | <title>what should be here</title> | 
|  | 156 | <para>TBD</para> | 
|  | 157 | <para> | 
|  | 158 | This should describe the receive and transmit | 
|  | 159 | paths in mac80211/the drivers as well as | 
|  | 160 | transmit status handling. | 
|  | 161 | </para> | 
|  | 162 | </sect1> | 
|  | 163 | <sect1> | 
|  | 164 | <title>Frame format</title> | 
|  | 165 | !Pinclude/net/mac80211.h Frame format | 
|  | 166 | </sect1> | 
|  | 167 | <sect1> | 
|  | 168 | <title>Alignment issues</title> | 
|  | 169 | <para>TBD</para> | 
|  | 170 | </sect1> | 
|  | 171 | <sect1> | 
|  | 172 | <title>Calling into mac80211 from interrupts</title> | 
|  | 173 | !Pinclude/net/mac80211.h Calling mac80211 from interrupts | 
|  | 174 | </sect1> | 
|  | 175 | <sect1> | 
|  | 176 | <title>functions/definitions</title> | 
|  | 177 | !Finclude/net/mac80211.h ieee80211_rx_status | 
|  | 178 | !Finclude/net/mac80211.h mac80211_rx_flags | 
| Johannes Berg | 62c1f95 | 2008-09-12 10:18:44 +0200 | [diff] [blame] | 179 | !Finclude/net/mac80211.h ieee80211_tx_info | 
| Johannes Berg | dbbea67 | 2008-02-26 14:34:06 +0100 | [diff] [blame] | 180 | !Finclude/net/mac80211.h ieee80211_rx | 
|  | 181 | !Finclude/net/mac80211.h ieee80211_rx_irqsafe | 
|  | 182 | !Finclude/net/mac80211.h ieee80211_tx_status | 
|  | 183 | !Finclude/net/mac80211.h ieee80211_tx_status_irqsafe | 
|  | 184 | !Finclude/net/mac80211.h ieee80211_rts_get | 
|  | 185 | !Finclude/net/mac80211.h ieee80211_rts_duration | 
|  | 186 | !Finclude/net/mac80211.h ieee80211_ctstoself_get | 
|  | 187 | !Finclude/net/mac80211.h ieee80211_ctstoself_duration | 
|  | 188 | !Finclude/net/mac80211.h ieee80211_generic_frame_duration | 
|  | 189 | !Finclude/net/mac80211.h ieee80211_get_hdrlen_from_skb | 
| Johannes Berg | 62c1f95 | 2008-09-12 10:18:44 +0200 | [diff] [blame] | 190 | !Finclude/net/mac80211.h ieee80211_hdrlen | 
| Johannes Berg | dbbea67 | 2008-02-26 14:34:06 +0100 | [diff] [blame] | 191 | !Finclude/net/mac80211.h ieee80211_wake_queue | 
|  | 192 | !Finclude/net/mac80211.h ieee80211_stop_queue | 
| Johannes Berg | dbbea67 | 2008-02-26 14:34:06 +0100 | [diff] [blame] | 193 | !Finclude/net/mac80211.h ieee80211_wake_queues | 
| Johannes Berg | 62c1f95 | 2008-09-12 10:18:44 +0200 | [diff] [blame] | 194 | !Finclude/net/mac80211.h ieee80211_stop_queues | 
| Johannes Berg | dbbea67 | 2008-02-26 14:34:06 +0100 | [diff] [blame] | 195 | </sect1> | 
|  | 196 | </chapter> | 
|  | 197 |  | 
|  | 198 | <chapter id="filters"> | 
|  | 199 | <title>Frame filtering</title> | 
|  | 200 | !Pinclude/net/mac80211.h Frame filtering | 
|  | 201 | !Finclude/net/mac80211.h ieee80211_filter_flags | 
|  | 202 | </chapter> | 
|  | 203 | </part> | 
|  | 204 |  | 
|  | 205 | <part id="advanced"> | 
|  | 206 | <title>Advanced driver interface</title> | 
|  | 207 | <partintro> | 
|  | 208 | <para> | 
|  | 209 | Information contained within this part of the book is | 
|  | 210 | of interest only for advanced interaction of mac80211 | 
|  | 211 | with drivers to exploit more hardware capabilities and | 
|  | 212 | improve performance. | 
|  | 213 | </para> | 
|  | 214 | </partintro> | 
|  | 215 |  | 
|  | 216 | <chapter id="hardware-crypto-offload"> | 
|  | 217 | <title>Hardware crypto acceleration</title> | 
|  | 218 | !Pinclude/net/mac80211.h Hardware crypto acceleration | 
|  | 219 | <!-- intentionally multiple !F lines to get proper order --> | 
|  | 220 | !Finclude/net/mac80211.h set_key_cmd | 
|  | 221 | !Finclude/net/mac80211.h ieee80211_key_conf | 
|  | 222 | !Finclude/net/mac80211.h ieee80211_key_alg | 
|  | 223 | !Finclude/net/mac80211.h ieee80211_key_flags | 
|  | 224 | </chapter> | 
|  | 225 |  | 
|  | 226 | <chapter id="qos"> | 
|  | 227 | <title>Multiple queues and QoS support</title> | 
|  | 228 | <para>TBD</para> | 
|  | 229 | !Finclude/net/mac80211.h ieee80211_tx_queue_params | 
| Johannes Berg | 62c1f95 | 2008-09-12 10:18:44 +0200 | [diff] [blame] | 230 | !Finclude/net/mac80211.h ieee80211_tx_queue_stats | 
| Johannes Berg | dbbea67 | 2008-02-26 14:34:06 +0100 | [diff] [blame] | 231 | </chapter> | 
|  | 232 |  | 
|  | 233 | <chapter id="AP"> | 
|  | 234 | <title>Access point mode support</title> | 
|  | 235 | <para>TBD</para> | 
|  | 236 | <para>Some parts of the if_conf should be discussed here instead</para> | 
|  | 237 | <para> | 
|  | 238 | Insert notes about VLAN interfaces with hw crypto here or | 
|  | 239 | in the hw crypto chapter. | 
|  | 240 | </para> | 
|  | 241 | !Finclude/net/mac80211.h ieee80211_get_buffered_bc | 
|  | 242 | !Finclude/net/mac80211.h ieee80211_beacon_get | 
|  | 243 | </chapter> | 
|  | 244 |  | 
|  | 245 | <chapter id="multi-iface"> | 
|  | 246 | <title>Supporting multiple virtual interfaces</title> | 
|  | 247 | <para>TBD</para> | 
|  | 248 | <para> | 
|  | 249 | Note: WDS with identical MAC address should almost always be OK | 
|  | 250 | </para> | 
|  | 251 | <para> | 
|  | 252 | Insert notes about having multiple virtual interfaces with | 
|  | 253 | different MAC addresses here, note which configurations are | 
|  | 254 | supported by mac80211, add notes about supporting hw crypto | 
|  | 255 | with it. | 
|  | 256 | </para> | 
|  | 257 | </chapter> | 
|  | 258 |  | 
|  | 259 | <chapter id="hardware-scan-offload"> | 
|  | 260 | <title>Hardware scan offload</title> | 
|  | 261 | <para>TBD</para> | 
|  | 262 | !Finclude/net/mac80211.h ieee80211_scan_completed | 
|  | 263 | </chapter> | 
|  | 264 | </part> | 
|  | 265 |  | 
|  | 266 | <part id="rate-control"> | 
|  | 267 | <title>Rate control interface</title> | 
|  | 268 | <partintro> | 
|  | 269 | <para>TBD</para> | 
|  | 270 | <para> | 
|  | 271 | This part of the book describes the rate control algorithm | 
|  | 272 | interface and how it relates to mac80211 and drivers. | 
|  | 273 | </para> | 
|  | 274 | </partintro> | 
|  | 275 | <chapter id="dummy"> | 
|  | 276 | <title>dummy chapter</title> | 
|  | 277 | <para>TBD</para> | 
|  | 278 | </chapter> | 
|  | 279 | </part> | 
|  | 280 |  | 
|  | 281 | <part id="internal"> | 
|  | 282 | <title>Internals</title> | 
|  | 283 | <partintro> | 
|  | 284 | <para>TBD</para> | 
|  | 285 | <para> | 
|  | 286 | This part of the book describes mac80211 internals. | 
|  | 287 | </para> | 
|  | 288 | </partintro> | 
|  | 289 |  | 
|  | 290 | <chapter id="key-handling"> | 
|  | 291 | <title>Key handling</title> | 
|  | 292 | <sect1> | 
|  | 293 | <title>Key handling basics</title> | 
|  | 294 | !Pnet/mac80211/key.c Key handling basics | 
|  | 295 | </sect1> | 
|  | 296 | <sect1> | 
|  | 297 | <title>MORE TBD</title> | 
|  | 298 | <para>TBD</para> | 
|  | 299 | </sect1> | 
|  | 300 | </chapter> | 
|  | 301 |  | 
|  | 302 | <chapter id="rx-processing"> | 
|  | 303 | <title>Receive processing</title> | 
|  | 304 | <para>TBD</para> | 
|  | 305 | </chapter> | 
|  | 306 |  | 
|  | 307 | <chapter id="tx-processing"> | 
|  | 308 | <title>Transmit processing</title> | 
|  | 309 | <para>TBD</para> | 
|  | 310 | </chapter> | 
|  | 311 |  | 
|  | 312 | <chapter id="sta-info"> | 
|  | 313 | <title>Station info handling</title> | 
|  | 314 | <sect1> | 
|  | 315 | <title>Programming information</title> | 
|  | 316 | !Fnet/mac80211/sta_info.h sta_info | 
|  | 317 | !Fnet/mac80211/sta_info.h ieee80211_sta_info_flags | 
|  | 318 | </sect1> | 
|  | 319 | <sect1> | 
|  | 320 | <title>STA information lifetime rules</title> | 
|  | 321 | !Pnet/mac80211/sta_info.c STA information lifetime rules | 
|  | 322 | </sect1> | 
|  | 323 | </chapter> | 
|  | 324 |  | 
|  | 325 | <chapter id="synchronisation"> | 
|  | 326 | <title>Synchronisation</title> | 
|  | 327 | <para>TBD</para> | 
|  | 328 | <para>Locking, lots of RCU</para> | 
|  | 329 | </chapter> | 
|  | 330 | </part> | 
|  | 331 | </book> |