FreeBSD kernel WLAN code
ieee80211_ht.c
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1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2007-2008 Sam Leffler, Errno Consulting
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29#ifdef __FreeBSD__
30__FBSDID("$FreeBSD$");
31#endif
32
33/*
34 * IEEE 802.11n protocol support.
35 */
36
37#include "opt_inet.h"
38#include "opt_wlan.h"
39
40#include <sys/param.h>
41#include <sys/kernel.h>
42#include <sys/malloc.h>
43#include <sys/systm.h>
44#include <sys/endian.h>
45
46#include <sys/socket.h>
47
48#include <net/if.h>
49#include <net/if_var.h>
50#include <net/if_media.h>
51#include <net/ethernet.h>
52
53#include <net80211/ieee80211_var.h>
54#include <net80211/ieee80211_action.h>
55#include <net80211/ieee80211_input.h>
56
57const struct ieee80211_mcs_rates ieee80211_htrates[IEEE80211_HTRATE_MAXSIZE] = {
58 { 13, 14, 27, 30 }, /* MCS 0 */
59 { 26, 29, 54, 60 }, /* MCS 1 */
60 { 39, 43, 81, 90 }, /* MCS 2 */
61 { 52, 58, 108, 120 }, /* MCS 3 */
62 { 78, 87, 162, 180 }, /* MCS 4 */
63 { 104, 116, 216, 240 }, /* MCS 5 */
64 { 117, 130, 243, 270 }, /* MCS 6 */
65 { 130, 144, 270, 300 }, /* MCS 7 */
66 { 26, 29, 54, 60 }, /* MCS 8 */
67 { 52, 58, 108, 120 }, /* MCS 9 */
68 { 78, 87, 162, 180 }, /* MCS 10 */
69 { 104, 116, 216, 240 }, /* MCS 11 */
70 { 156, 173, 324, 360 }, /* MCS 12 */
71 { 208, 231, 432, 480 }, /* MCS 13 */
72 { 234, 260, 486, 540 }, /* MCS 14 */
73 { 260, 289, 540, 600 }, /* MCS 15 */
74 { 39, 43, 81, 90 }, /* MCS 16 */
75 { 78, 87, 162, 180 }, /* MCS 17 */
76 { 117, 130, 243, 270 }, /* MCS 18 */
77 { 156, 173, 324, 360 }, /* MCS 19 */
78 { 234, 260, 486, 540 }, /* MCS 20 */
79 { 312, 347, 648, 720 }, /* MCS 21 */
80 { 351, 390, 729, 810 }, /* MCS 22 */
81 { 390, 433, 810, 900 }, /* MCS 23 */
82 { 52, 58, 108, 120 }, /* MCS 24 */
83 { 104, 116, 216, 240 }, /* MCS 25 */
84 { 156, 173, 324, 360 }, /* MCS 26 */
85 { 208, 231, 432, 480 }, /* MCS 27 */
86 { 312, 347, 648, 720 }, /* MCS 28 */
87 { 416, 462, 864, 960 }, /* MCS 29 */
88 { 468, 520, 972, 1080 }, /* MCS 30 */
89 { 520, 578, 1080, 1200 }, /* MCS 31 */
90 { 0, 0, 12, 13 }, /* MCS 32 */
91 { 78, 87, 162, 180 }, /* MCS 33 */
92 { 104, 116, 216, 240 }, /* MCS 34 */
93 { 130, 144, 270, 300 }, /* MCS 35 */
94 { 117, 130, 243, 270 }, /* MCS 36 */
95 { 156, 173, 324, 360 }, /* MCS 37 */
96 { 195, 217, 405, 450 }, /* MCS 38 */
97 { 104, 116, 216, 240 }, /* MCS 39 */
98 { 130, 144, 270, 300 }, /* MCS 40 */
99 { 130, 144, 270, 300 }, /* MCS 41 */
100 { 156, 173, 324, 360 }, /* MCS 42 */
101 { 182, 202, 378, 420 }, /* MCS 43 */
102 { 182, 202, 378, 420 }, /* MCS 44 */
103 { 208, 231, 432, 480 }, /* MCS 45 */
104 { 156, 173, 324, 360 }, /* MCS 46 */
105 { 195, 217, 405, 450 }, /* MCS 47 */
106 { 195, 217, 405, 450 }, /* MCS 48 */
107 { 234, 260, 486, 540 }, /* MCS 49 */
108 { 273, 303, 567, 630 }, /* MCS 50 */
109 { 273, 303, 567, 630 }, /* MCS 51 */
110 { 312, 347, 648, 720 }, /* MCS 52 */
111 { 130, 144, 270, 300 }, /* MCS 53 */
112 { 156, 173, 324, 360 }, /* MCS 54 */
113 { 182, 202, 378, 420 }, /* MCS 55 */
114 { 156, 173, 324, 360 }, /* MCS 56 */
115 { 182, 202, 378, 420 }, /* MCS 57 */
116 { 208, 231, 432, 480 }, /* MCS 58 */
117 { 234, 260, 486, 540 }, /* MCS 59 */
118 { 208, 231, 432, 480 }, /* MCS 60 */
119 { 234, 260, 486, 540 }, /* MCS 61 */
120 { 260, 289, 540, 600 }, /* MCS 62 */
121 { 260, 289, 540, 600 }, /* MCS 63 */
122 { 286, 318, 594, 660 }, /* MCS 64 */
123 { 195, 217, 405, 450 }, /* MCS 65 */
124 { 234, 260, 486, 540 }, /* MCS 66 */
125 { 273, 303, 567, 630 }, /* MCS 67 */
126 { 234, 260, 486, 540 }, /* MCS 68 */
127 { 273, 303, 567, 630 }, /* MCS 69 */
128 { 312, 347, 648, 720 }, /* MCS 70 */
129 { 351, 390, 729, 810 }, /* MCS 71 */
130 { 312, 347, 648, 720 }, /* MCS 72 */
131 { 351, 390, 729, 810 }, /* MCS 73 */
132 { 390, 433, 810, 900 }, /* MCS 74 */
133 { 390, 433, 810, 900 }, /* MCS 75 */
134 { 429, 477, 891, 990 }, /* MCS 76 */
135};
136
137static int ieee80211_ampdu_age = -1; /* threshold for ampdu reorder q (ms) */
138SYSCTL_PROC(_net_wlan, OID_AUTO, ampdu_age,
139 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
140 &ieee80211_ampdu_age, 0, ieee80211_sysctl_msecs_ticks, "I",
141 "AMPDU max reorder age (ms)");
142
143static int ieee80211_recv_bar_ena = 1;
144SYSCTL_INT(_net_wlan, OID_AUTO, recv_bar, CTLFLAG_RW, &ieee80211_recv_bar_ena,
145 0, "BAR frame processing (ena/dis)");
146
147static int ieee80211_addba_timeout = -1;/* timeout for ADDBA response */
148SYSCTL_PROC(_net_wlan, OID_AUTO, addba_timeout,
149 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
150 &ieee80211_addba_timeout, 0, ieee80211_sysctl_msecs_ticks, "I",
151 "ADDBA request timeout (ms)");
152static int ieee80211_addba_backoff = -1;/* backoff after max ADDBA requests */
153SYSCTL_PROC(_net_wlan, OID_AUTO, addba_backoff,
154 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
155 &ieee80211_addba_backoff, 0, ieee80211_sysctl_msecs_ticks, "I",
156 "ADDBA request backoff (ms)");
157static int ieee80211_addba_maxtries = 3;/* max ADDBA requests before backoff */
158SYSCTL_INT(_net_wlan, OID_AUTO, addba_maxtries, CTLFLAG_RW,
159 &ieee80211_addba_maxtries, 0, "max ADDBA requests sent before backoff");
160
161static int ieee80211_bar_timeout = -1; /* timeout waiting for BAR response */
162static int ieee80211_bar_maxtries = 50;/* max BAR requests before DELBA */
163
164static ieee80211_recv_action_func ht_recv_action_ba_addba_request;
165static ieee80211_recv_action_func ht_recv_action_ba_addba_response;
166static ieee80211_recv_action_func ht_recv_action_ba_delba;
167static ieee80211_recv_action_func ht_recv_action_ht_mimopwrsave;
168static ieee80211_recv_action_func ht_recv_action_ht_txchwidth;
169
170static ieee80211_send_action_func ht_send_action_ba_addba;
171static ieee80211_send_action_func ht_send_action_ba_delba;
172static ieee80211_send_action_func ht_send_action_ht_txchwidth;
173
174static void
175ieee80211_ht_init(void)
176{
177 /*
178 * Setup HT parameters that depends on the clock frequency.
179 */
180 ieee80211_ampdu_age = msecs_to_ticks(500);
181 ieee80211_addba_timeout = msecs_to_ticks(250);
182 ieee80211_addba_backoff = msecs_to_ticks(10*1000);
183 ieee80211_bar_timeout = msecs_to_ticks(250);
184 /*
185 * Register action frame handlers.
186 */
187 ieee80211_recv_action_register(IEEE80211_ACTION_CAT_BA,
188 IEEE80211_ACTION_BA_ADDBA_REQUEST, ht_recv_action_ba_addba_request);
189 ieee80211_recv_action_register(IEEE80211_ACTION_CAT_BA,
190 IEEE80211_ACTION_BA_ADDBA_RESPONSE, ht_recv_action_ba_addba_response);
191 ieee80211_recv_action_register(IEEE80211_ACTION_CAT_BA,
192 IEEE80211_ACTION_BA_DELBA, ht_recv_action_ba_delba);
193 ieee80211_recv_action_register(IEEE80211_ACTION_CAT_HT,
194 IEEE80211_ACTION_HT_MIMOPWRSAVE, ht_recv_action_ht_mimopwrsave);
195 ieee80211_recv_action_register(IEEE80211_ACTION_CAT_HT,
196 IEEE80211_ACTION_HT_TXCHWIDTH, ht_recv_action_ht_txchwidth);
197
198 ieee80211_send_action_register(IEEE80211_ACTION_CAT_BA,
199 IEEE80211_ACTION_BA_ADDBA_REQUEST, ht_send_action_ba_addba);
200 ieee80211_send_action_register(IEEE80211_ACTION_CAT_BA,
201 IEEE80211_ACTION_BA_ADDBA_RESPONSE, ht_send_action_ba_addba);
202 ieee80211_send_action_register(IEEE80211_ACTION_CAT_BA,
203 IEEE80211_ACTION_BA_DELBA, ht_send_action_ba_delba);
204 ieee80211_send_action_register(IEEE80211_ACTION_CAT_HT,
205 IEEE80211_ACTION_HT_TXCHWIDTH, ht_send_action_ht_txchwidth);
206}
207SYSINIT(wlan_ht, SI_SUB_DRIVERS, SI_ORDER_FIRST, ieee80211_ht_init, NULL);
208
209static int ieee80211_ampdu_enable(struct ieee80211_node *ni,
210 struct ieee80211_tx_ampdu *tap);
211static int ieee80211_addba_request(struct ieee80211_node *ni,
212 struct ieee80211_tx_ampdu *tap,
213 int dialogtoken, int baparamset, int batimeout);
214static int ieee80211_addba_response(struct ieee80211_node *ni,
215 struct ieee80211_tx_ampdu *tap,
216 int code, int baparamset, int batimeout);
217static void ieee80211_addba_stop(struct ieee80211_node *ni,
218 struct ieee80211_tx_ampdu *tap);
219static void null_addba_response_timeout(struct ieee80211_node *ni,
220 struct ieee80211_tx_ampdu *tap);
221
222static void ieee80211_bar_response(struct ieee80211_node *ni,
223 struct ieee80211_tx_ampdu *tap, int status);
224static void ampdu_tx_stop(struct ieee80211_tx_ampdu *tap);
225static void bar_stop_timer(struct ieee80211_tx_ampdu *tap);
226static int ampdu_rx_start(struct ieee80211_node *, struct ieee80211_rx_ampdu *,
227 int baparamset, int batimeout, int baseqctl);
228static void ampdu_rx_stop(struct ieee80211_node *, struct ieee80211_rx_ampdu *);
229
230void
231ieee80211_ht_attach(struct ieee80211com *ic)
232{
233 /* setup default aggregation policy */
234 ic->ic_recv_action = ieee80211_recv_action;
235 ic->ic_send_action = ieee80211_send_action;
236 ic->ic_ampdu_enable = ieee80211_ampdu_enable;
237 ic->ic_addba_request = ieee80211_addba_request;
238 ic->ic_addba_response = ieee80211_addba_response;
239 ic->ic_addba_response_timeout = null_addba_response_timeout;
240 ic->ic_addba_stop = ieee80211_addba_stop;
241 ic->ic_bar_response = ieee80211_bar_response;
242 ic->ic_ampdu_rx_start = ampdu_rx_start;
243 ic->ic_ampdu_rx_stop = ampdu_rx_stop;
244
245 ic->ic_htprotmode = IEEE80211_PROT_RTSCTS;
246 ic->ic_curhtprotmode = IEEE80211_HTINFO_OPMODE_PURE;
247}
248
249void
250ieee80211_ht_detach(struct ieee80211com *ic)
251{
252}
253
254void
255ieee80211_ht_vattach(struct ieee80211vap *vap)
256{
257
258 /* driver can override defaults */
259 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_8K;
260 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_NA;
261 vap->iv_ampdu_limit = vap->iv_ampdu_rxmax;
262 vap->iv_amsdu_limit = vap->iv_htcaps & IEEE80211_HTCAP_MAXAMSDU;
263 /* tx aggregation traffic thresholds */
264 vap->iv_ampdu_mintraffic[WME_AC_BK] = 128;
265 vap->iv_ampdu_mintraffic[WME_AC_BE] = 64;
266 vap->iv_ampdu_mintraffic[WME_AC_VO] = 32;
267 vap->iv_ampdu_mintraffic[WME_AC_VI] = 32;
268
269 vap->iv_htprotmode = IEEE80211_PROT_RTSCTS;
270 vap->iv_curhtprotmode = IEEE80211_HTINFO_OPMODE_PURE;
271
272 if (vap->iv_htcaps & IEEE80211_HTC_HT) {
273 /*
274 * Device is HT capable; enable all HT-related
275 * facilities by default.
276 * XXX these choices may be too aggressive.
277 */
278 vap->iv_flags_ht |= IEEE80211_FHT_HT
279 | IEEE80211_FHT_HTCOMPAT
280 ;
281 if (vap->iv_htcaps & IEEE80211_HTCAP_SHORTGI20)
282 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
283 /* XXX infer from channel list? */
284 if (vap->iv_htcaps & IEEE80211_HTCAP_CHWIDTH40) {
285 vap->iv_flags_ht |= IEEE80211_FHT_USEHT40;
286 if (vap->iv_htcaps & IEEE80211_HTCAP_SHORTGI40)
287 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
288 }
289 /* enable RIFS if capable */
290 if (vap->iv_htcaps & IEEE80211_HTC_RIFS)
291 vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
292
293 /* NB: A-MPDU and A-MSDU rx are mandated, these are tx only */
294 vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
295 if (vap->iv_htcaps & IEEE80211_HTC_AMPDU)
296 vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
297 vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
298 if (vap->iv_htcaps & IEEE80211_HTC_AMSDU)
299 vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
300
301 if (vap->iv_htcaps & IEEE80211_HTCAP_TXSTBC)
302 vap->iv_flags_ht |= IEEE80211_FHT_STBC_TX;
303 if (vap->iv_htcaps & IEEE80211_HTCAP_RXSTBC)
304 vap->iv_flags_ht |= IEEE80211_FHT_STBC_RX;
305
306 if (vap->iv_htcaps & IEEE80211_HTCAP_LDPC)
307 vap->iv_flags_ht |= IEEE80211_FHT_LDPC_RX;
308 if (vap->iv_htcaps & IEEE80211_HTC_TXLDPC)
309 vap->iv_flags_ht |= IEEE80211_FHT_LDPC_TX;
310 }
311 /* NB: disable default legacy WDS, too many issues right now */
312 if (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)
313 vap->iv_flags_ht &= ~IEEE80211_FHT_HT;
314}
315
316void
317ieee80211_ht_vdetach(struct ieee80211vap *vap)
318{
319}
320
321static int
322ht_getrate(struct ieee80211com *ic, int index, enum ieee80211_phymode mode,
323 int ratetype)
324{
325 int mword, rate;
326
327 mword = ieee80211_rate2media(ic, index | IEEE80211_RATE_MCS, mode);
328 if (IFM_SUBTYPE(mword) != IFM_IEEE80211_MCS)
329 return (0);
330 switch (ratetype) {
331 case 0:
332 rate = ieee80211_htrates[index].ht20_rate_800ns;
333 break;
334 case 1:
335 rate = ieee80211_htrates[index].ht20_rate_400ns;
336 break;
337 case 2:
338 rate = ieee80211_htrates[index].ht40_rate_800ns;
339 break;
340 default:
341 rate = ieee80211_htrates[index].ht40_rate_400ns;
342 break;
343 }
344 return (rate);
345}
346
347static struct printranges {
348 int minmcs;
349 int maxmcs;
350 int txstream;
351 int ratetype;
352 int htcapflags;
353} ranges[] = {
354 { 0, 7, 1, 0, 0 },
355 { 8, 15, 2, 0, 0 },
356 { 16, 23, 3, 0, 0 },
357 { 24, 31, 4, 0, 0 },
358 { 32, 0, 1, 2, IEEE80211_HTC_TXMCS32 },
359 { 33, 38, 2, 0, IEEE80211_HTC_TXUNEQUAL },
360 { 39, 52, 3, 0, IEEE80211_HTC_TXUNEQUAL },
361 { 53, 76, 4, 0, IEEE80211_HTC_TXUNEQUAL },
362 { 0, 0, 0, 0, 0 },
363};
364
365static void
366ht_rateprint(struct ieee80211com *ic, enum ieee80211_phymode mode, int ratetype)
367{
368 int minrate, maxrate;
369 struct printranges *range;
370
371 for (range = ranges; range->txstream != 0; range++) {
372 if (ic->ic_txstream < range->txstream)
373 continue;
374 if (range->htcapflags &&
375 (ic->ic_htcaps & range->htcapflags) == 0)
376 continue;
377 if (ratetype < range->ratetype)
378 continue;
379 minrate = ht_getrate(ic, range->minmcs, mode, ratetype);
380 maxrate = ht_getrate(ic, range->maxmcs, mode, ratetype);
381 if (range->maxmcs) {
382 ic_printf(ic, "MCS %d-%d: %d%sMbps - %d%sMbps\n",
383 range->minmcs, range->maxmcs,
384 minrate/2, ((minrate & 0x1) != 0 ? ".5" : ""),
385 maxrate/2, ((maxrate & 0x1) != 0 ? ".5" : ""));
386 } else {
387 ic_printf(ic, "MCS %d: %d%sMbps\n", range->minmcs,
388 minrate/2, ((minrate & 0x1) != 0 ? ".5" : ""));
389 }
390 }
391}
392
393static void
394ht_announce(struct ieee80211com *ic, enum ieee80211_phymode mode)
395{
396 const char *modestr = ieee80211_phymode_name[mode];
397
398 ic_printf(ic, "%s MCS 20MHz\n", modestr);
399 ht_rateprint(ic, mode, 0);
400 if (ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI20) {
401 ic_printf(ic, "%s MCS 20MHz SGI\n", modestr);
402 ht_rateprint(ic, mode, 1);
403 }
404 if (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) {
405 ic_printf(ic, "%s MCS 40MHz:\n", modestr);
406 ht_rateprint(ic, mode, 2);
407 }
408 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) &&
409 (ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI40)) {
410 ic_printf(ic, "%s MCS 40MHz SGI:\n", modestr);
411 ht_rateprint(ic, mode, 3);
412 }
413}
414
415void
416ieee80211_ht_announce(struct ieee80211com *ic)
417{
418
419 if (isset(ic->ic_modecaps, IEEE80211_MODE_11NA) ||
420 isset(ic->ic_modecaps, IEEE80211_MODE_11NG))
421 ic_printf(ic, "%dT%dR\n", ic->ic_txstream, ic->ic_rxstream);
422 if (isset(ic->ic_modecaps, IEEE80211_MODE_11NA))
423 ht_announce(ic, IEEE80211_MODE_11NA);
424 if (isset(ic->ic_modecaps, IEEE80211_MODE_11NG))
425 ht_announce(ic, IEEE80211_MODE_11NG);
426}
427
428void
429ieee80211_init_suphtrates(struct ieee80211com *ic)
430{
431#define ADDRATE(x) do { \
432 htrateset->rs_rates[htrateset->rs_nrates] = x; \
433 htrateset->rs_nrates++; \
434} while (0)
435 struct ieee80211_htrateset *htrateset = &ic->ic_sup_htrates;
436 int i;
437
438 memset(htrateset, 0, sizeof(struct ieee80211_htrateset));
439 for (i = 0; i < ic->ic_txstream * 8; i++)
440 ADDRATE(i);
441 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) &&
442 (ic->ic_htcaps & IEEE80211_HTC_TXMCS32))
443 ADDRATE(32);
444 if (ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL) {
445 if (ic->ic_txstream >= 2) {
446 for (i = 33; i <= 38; i++)
447 ADDRATE(i);
448 }
449 if (ic->ic_txstream >= 3) {
450 for (i = 39; i <= 52; i++)
451 ADDRATE(i);
452 }
453 if (ic->ic_txstream == 4) {
454 for (i = 53; i <= 76; i++)
455 ADDRATE(i);
456 }
457 }
458#undef ADDRATE
459}
460
461/*
462 * Receive processing.
463 */
464
465/*
466 * Decap the encapsulated A-MSDU frames and dispatch all but
467 * the last for delivery. The last frame is returned for
468 * delivery via the normal path.
469 */
470struct mbuf *
471ieee80211_decap_amsdu(struct ieee80211_node *ni, struct mbuf *m)
472{
473 struct ieee80211vap *vap = ni->ni_vap;
474 int framelen;
475 struct mbuf *n;
476
477 /* discard 802.3 header inserted by ieee80211_decap */
478 m_adj(m, sizeof(struct ether_header));
479
480 vap->iv_stats.is_amsdu_decap++;
481
482 for (;;) {
483 /*
484 * Decap the first frame, bust it apart from the
485 * remainder and deliver. We leave the last frame
486 * delivery to the caller (for consistency with other
487 * code paths, could also do it here).
488 */
489 m = ieee80211_decap1(m, &framelen);
490 if (m == NULL) {
491 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
492 ni->ni_macaddr, "a-msdu", "%s", "decap failed");
493 vap->iv_stats.is_amsdu_tooshort++;
494 return NULL;
495 }
496 if (m->m_pkthdr.len == framelen)
497 break;
498 n = m_split(m, framelen, M_NOWAIT);
499 if (n == NULL) {
500 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
501 ni->ni_macaddr, "a-msdu",
502 "%s", "unable to split encapsulated frames");
503 vap->iv_stats.is_amsdu_split++;
504 m_freem(m); /* NB: must reclaim */
505 return NULL;
506 }
507 vap->iv_deliver_data(vap, ni, m);
508
509 /*
510 * Remove frame contents; each intermediate frame
511 * is required to be aligned to a 4-byte boundary.
512 */
513 m = n;
514 m_adj(m, roundup2(framelen, 4) - framelen); /* padding */
515 }
516 return m; /* last delivered by caller */
517}
518
519static void
520ampdu_rx_purge_slot(struct ieee80211_rx_ampdu *rap, int i)
521{
522 struct mbuf *m;
523
524 /* Walk the queue, removing frames as appropriate */
525 while (mbufq_len(&rap->rxa_mq[i]) != 0) {
526 m = mbufq_dequeue(&rap->rxa_mq[i]);
527 if (m == NULL)
528 break;
529 rap->rxa_qbytes -= m->m_pkthdr.len;
530 rap->rxa_qframes--;
531 m_freem(m);
532 }
533}
534
535/*
536 * Add the given frame to the current RX reorder slot.
537 *
538 * For future offloaded A-MSDU handling where multiple frames with
539 * the same sequence number show up here, this routine will append
540 * those frames as long as they're appropriately tagged.
541 */
542static int
543ampdu_rx_add_slot(struct ieee80211_rx_ampdu *rap, int off, int tid,
544 ieee80211_seq rxseq,
545 struct ieee80211_node *ni,
546 struct mbuf *m,
547 const struct ieee80211_rx_stats *rxs)
548{
549 const struct ieee80211_rx_stats *rxs_final = NULL;
550 struct ieee80211vap *vap = ni->ni_vap;
551 int toss_dup;
552#define PROCESS 0 /* caller should process frame */
553#define CONSUMED 1 /* frame consumed, caller does nothing */
554
555 /*
556 * Figure out if this is a duplicate frame for the given slot.
557 *
558 * We're assuming that the driver will hand us all the frames
559 * for a given AMSDU decap pass and if we get /a/ frame
560 * for an AMSDU decap then we'll get all of them.
561 *
562 * The tricksy bit is that we don't know when the /end/ of
563 * the decap pass is, because we aren't tracking state here
564 * per-slot to know that we've finished receiving the frame list.
565 *
566 * The driver sets RX_F_AMSDU and RX_F_AMSDU_MORE to tell us
567 * what's going on; so ideally we'd just check the frame at the
568 * end of the reassembly slot to see if its F_AMSDU w/ no F_AMSDU_MORE -
569 * that means we've received the whole AMSDU decap pass.
570 */
571
572 /*
573 * Get the rxs of the final mbuf in the slot, if one exists.
574 */
575 if (mbufq_len(&rap->rxa_mq[off]) != 0) {
576 rxs_final = ieee80211_get_rx_params_ptr(mbufq_last(&rap->rxa_mq[off]));
577 }
578
579 /* Default to tossing the duplicate frame */
580 toss_dup = 1;
581
582 /*
583 * Check to see if the final frame has F_AMSDU and F_AMSDU set, AND
584 * this frame has F_AMSDU set (MORE or otherwise.) That's a sign
585 * that more can come.
586 */
587
588 if ((rxs != NULL) && (rxs_final != NULL) &&
589 ieee80211_check_rxseq_amsdu(rxs) &&
590 ieee80211_check_rxseq_amsdu(rxs_final)) {
591 if (! ieee80211_check_rxseq_amsdu_more(rxs_final)) {
592 /*
593 * amsdu_more() returning 0 means "it's not the
594 * final frame" so we can append more
595 * frames here.
596 */
597 toss_dup = 0;
598 }
599 }
600
601 /*
602 * If the list is empty OR we have determined we can put more
603 * driver decap'ed AMSDU frames in here, then insert.
604 */
605 if ((mbufq_len(&rap->rxa_mq[off]) == 0) || (toss_dup == 0)) {
606 if (mbufq_enqueue(&rap->rxa_mq[off], m) != 0) {
607 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT | IEEE80211_MSG_11N,
608 ni->ni_macaddr,
609 "a-mpdu queue fail",
610 "seqno %u tid %u BA win <%u:%u> off=%d, qlen=%d, maxqlen=%d",
611 rxseq, tid, rap->rxa_start,
612 IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
613 off,
614 mbufq_len(&rap->rxa_mq[off]),
615 rap->rxa_mq[off].mq_maxlen);
616 /* XXX error count */
617 m_freem(m);
618 return CONSUMED;
619 }
620 rap->rxa_qframes++;
621 rap->rxa_qbytes += m->m_pkthdr.len;
622 vap->iv_stats.is_ampdu_rx_reorder++;
623 /*
624 * Statistics for AMSDU decap.
625 */
626 if (rxs != NULL && ieee80211_check_rxseq_amsdu(rxs)) {
627 if (ieee80211_check_rxseq_amsdu_more(rxs)) {
628 /* more=1, AMSDU, end of batch */
629 IEEE80211_NODE_STAT(ni, rx_amsdu_more_end);
630 } else {
631 IEEE80211_NODE_STAT(ni, rx_amsdu_more);
632 }
633 }
634 } else {
635 IEEE80211_DISCARD_MAC(vap,
636 IEEE80211_MSG_INPUT | IEEE80211_MSG_11N,
637 ni->ni_macaddr, "a-mpdu duplicate",
638 "seqno %u tid %u BA win <%u:%u>",
639 rxseq, tid, rap->rxa_start,
640 IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1));
641 if (rxs != NULL) {
642 IEEE80211_DISCARD_MAC(vap,
643 IEEE80211_MSG_INPUT | IEEE80211_MSG_11N,
644 ni->ni_macaddr, "a-mpdu duplicate",
645 "seqno %d tid %u pktflags 0x%08x\n",
646 rxseq, tid, rxs->c_pktflags);
647 }
648 if (rxs_final != NULL) {
649 IEEE80211_DISCARD_MAC(vap,
650 IEEE80211_MSG_INPUT | IEEE80211_MSG_11N,
651 ni->ni_macaddr, "a-mpdu duplicate",
652 "final: pktflags 0x%08x\n",
653 rxs_final->c_pktflags);
654 }
655 vap->iv_stats.is_rx_dup++;
656 IEEE80211_NODE_STAT(ni, rx_dup);
657 m_freem(m);
658 }
659 return CONSUMED;
660#undef CONSUMED
661#undef PROCESS
662}
663
664/*
665 * Purge all frames in the A-MPDU re-order queue.
666 */
667static void
668ampdu_rx_purge(struct ieee80211_rx_ampdu *rap)
669{
670 int i;
671
672 for (i = 0; i < rap->rxa_wnd; i++) {
673 ampdu_rx_purge_slot(rap, i);
674 if (rap->rxa_qframes == 0)
675 break;
676 }
677 KASSERT(rap->rxa_qbytes == 0 && rap->rxa_qframes == 0,
678 ("lost %u data, %u frames on ampdu rx q",
679 rap->rxa_qbytes, rap->rxa_qframes));
680}
681
682static void
683ieee80211_ampdu_rx_init_rap(struct ieee80211_node *ni,
684 struct ieee80211_rx_ampdu *rap)
685{
686 int i;
687
688 /* XXX TODO: ensure the queues are empty */
689 memset(rap, 0, sizeof(*rap));
690 for (i = 0; i < IEEE80211_AGGR_BAWMAX; i++)
691 mbufq_init(&rap->rxa_mq[i], 256);
692}
693
694/*
695 * Start A-MPDU rx/re-order processing for the specified TID.
696 */
697static int
698ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap,
699 int baparamset, int batimeout, int baseqctl)
700{
701 struct ieee80211vap *vap = ni->ni_vap;
702 int bufsiz = _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_BUFSIZ);
703
704 if (rap->rxa_flags & IEEE80211_AGGR_RUNNING) {
705 /*
706 * AMPDU previously setup and not terminated with a DELBA,
707 * flush the reorder q's in case anything remains.
708 */
709 ampdu_rx_purge(rap);
710 }
711 ieee80211_ampdu_rx_init_rap(ni, rap);
712 rap->rxa_wnd = (bufsiz == 0) ?
713 IEEE80211_AGGR_BAWMAX : min(bufsiz, IEEE80211_AGGR_BAWMAX);
714 rap->rxa_start = _IEEE80211_MASKSHIFT(baseqctl, IEEE80211_BASEQ_START);
715 rap->rxa_flags |= IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_XCHGPEND;
716
717 /* XXX this should be a configuration flag */
718 if ((vap->iv_htcaps & IEEE80211_HTC_RX_AMSDU_AMPDU) &&
719 (_IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_AMSDU)))
720 rap->rxa_flags |= IEEE80211_AGGR_AMSDU;
721 else
722 rap->rxa_flags &= ~IEEE80211_AGGR_AMSDU;
723
724 return 0;
725}
726
727/*
728 * Public function; manually setup the RX ampdu state.
729 */
730int
731ieee80211_ampdu_rx_start_ext(struct ieee80211_node *ni, int tid, int seq, int baw)
732{
733 struct ieee80211_rx_ampdu *rap;
734
735 /* XXX TODO: sanity check tid, seq, baw */
736
737 rap = &ni->ni_rx_ampdu[tid];
738
739 if (rap->rxa_flags & IEEE80211_AGGR_RUNNING) {
740 /*
741 * AMPDU previously setup and not terminated with a DELBA,
742 * flush the reorder q's in case anything remains.
743 */
744 ampdu_rx_purge(rap);
745 }
746
747 ieee80211_ampdu_rx_init_rap(ni, rap);
748
749 rap->rxa_wnd = (baw== 0) ?
750 IEEE80211_AGGR_BAWMAX : min(baw, IEEE80211_AGGR_BAWMAX);
751 if (seq == -1) {
752 /* Wait for the first RX frame, use that as BAW */
753 rap->rxa_start = 0;
754 rap->rxa_flags |= IEEE80211_AGGR_WAITRX;
755 } else {
756 rap->rxa_start = seq;
757 }
758 rap->rxa_flags |= IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_XCHGPEND;
759
760 /* XXX TODO: no amsdu flag */
761
762 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni,
763 "%s: tid=%d, start=%d, wnd=%d, flags=0x%08x",
764 __func__,
765 tid,
766 seq,
767 rap->rxa_wnd,
768 rap->rxa_flags);
769
770 return 0;
771}
772
773/*
774 * Public function; manually stop the RX AMPDU state.
775 */
776void
777ieee80211_ampdu_rx_stop_ext(struct ieee80211_node *ni, int tid)
778{
779 struct ieee80211_rx_ampdu *rap;
780
781 /* XXX TODO: sanity check tid, seq, baw */
782 rap = &ni->ni_rx_ampdu[tid];
783 ampdu_rx_stop(ni, rap);
784}
785
786/*
787 * Stop A-MPDU rx processing for the specified TID.
788 */
789static void
790ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap)
791{
792
793 ampdu_rx_purge(rap);
794 rap->rxa_flags &= ~(IEEE80211_AGGR_RUNNING
795 | IEEE80211_AGGR_XCHGPEND
796 | IEEE80211_AGGR_WAITRX);
797}
798
799/*
800 * Dispatch a frame from the A-MPDU reorder queue. The
801 * frame is fed back into ieee80211_input marked with an
802 * M_AMPDU_MPDU flag so it doesn't come back to us (it also
803 * permits ieee80211_input to optimize re-processing).
804 */
805static __inline void
806ampdu_dispatch(struct ieee80211_node *ni, struct mbuf *m)
807{
808 m->m_flags |= M_AMPDU_MPDU; /* bypass normal processing */
809 /* NB: rssi and noise are ignored w/ M_AMPDU_MPDU set */
810 (void) ieee80211_input(ni, m, 0, 0);
811}
812
813static int
814ampdu_dispatch_slot(struct ieee80211_rx_ampdu *rap, struct ieee80211_node *ni,
815 int i)
816{
817 struct mbuf *m;
818 int n = 0;
819
820 while (mbufq_len(&rap->rxa_mq[i]) != 0) {
821 m = mbufq_dequeue(&rap->rxa_mq[i]);
822 if (m == NULL)
823 break;
824 n++;
825
826 rap->rxa_qbytes -= m->m_pkthdr.len;
827 rap->rxa_qframes--;
828
829 ampdu_dispatch(ni, m);
830 }
831 return (n);
832}
833
834static void
835ampdu_rx_moveup(struct ieee80211_rx_ampdu *rap, struct ieee80211_node *ni,
836 int i, int winstart)
837{
838 struct ieee80211vap *vap = ni->ni_vap;
839
840 /*
841 * If frames remain, copy the mbuf pointers down so
842 * they correspond to the offsets in the new window.
843 */
844 if (rap->rxa_qframes != 0) {
845 int n = rap->rxa_qframes, j;
846 for (j = i+1; j < rap->rxa_wnd; j++) {
847 /*
848 * Concat the list contents over, which will
849 * blank the source list for us.
850 */
851 if (mbufq_len(&rap->rxa_mq[j]) != 0) {
852 n = n - mbufq_len(&rap->rxa_mq[j]);
853 mbufq_concat(&rap->rxa_mq[j-i], &rap->rxa_mq[j]);
854 KASSERT(n >= 0, ("%s: n < 0 (%d)", __func__, n));
855 if (n == 0)
856 break;
857 }
858 }
859 KASSERT(n == 0, ("%s: lost %d frames, qframes %d off %d "
860 "BA win <%d:%d> winstart %d",
861 __func__, n, rap->rxa_qframes, i, rap->rxa_start,
862 IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
863 winstart));
864 vap->iv_stats.is_ampdu_rx_copy += rap->rxa_qframes;
865 }
866}
867
868/*
869 * Dispatch as many frames as possible from the re-order queue.
870 * Frames will always be "at the front"; we process all frames
871 * up to the first empty slot in the window. On completion we
872 * cleanup state if there are still pending frames in the current
873 * BA window. We assume the frame at slot 0 is already handled
874 * by the caller; we always start at slot 1.
875 */
876static void
877ampdu_rx_dispatch(struct ieee80211_rx_ampdu *rap, struct ieee80211_node *ni)
878{
879 struct ieee80211vap *vap = ni->ni_vap;
880 int i, r, r2;
881
882 /* flush run of frames */
883 r2 = 0;
884 for (i = 1; i < rap->rxa_wnd; i++) {
885 r = ampdu_dispatch_slot(rap, ni, i);
886 if (r == 0)
887 break;
888 r2 += r;
889 }
890
891 /* move up frames */
892 ampdu_rx_moveup(rap, ni, i, -1);
893
894 /*
895 * Adjust the start of the BA window to
896 * reflect the frames just dispatched.
897 */
898 rap->rxa_start = IEEE80211_SEQ_ADD(rap->rxa_start, i);
899 vap->iv_stats.is_ampdu_rx_oor += r2;
900
901 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni,
902 "%s: moved slot up %d slots to start at %d (%d frames)",
903 __func__,
904 i,
905 rap->rxa_start,
906 r2);
907}
908
909/*
910 * Dispatch all frames in the A-MPDU re-order queue.
911 */
912static void
913ampdu_rx_flush(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap)
914{
915 int i, r;
916
917 for (i = 0; i < rap->rxa_wnd; i++) {
918 r = ampdu_dispatch_slot(rap, ni, i);
919 if (r == 0)
920 continue;
921 ni->ni_vap->iv_stats.is_ampdu_rx_oor += r;
922
923 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni,
924 "%s: moved slot up %d slots to start at %d (%d frames)",
925 __func__,
926 1,
927 rap->rxa_start,
928 r);
929
930 if (rap->rxa_qframes == 0)
931 break;
932 }
933}
934
935/*
936 * Dispatch all frames in the A-MPDU re-order queue
937 * preceding the specified sequence number. This logic
938 * handles window moves due to a received MSDU or BAR.
939 */
940static void
941ampdu_rx_flush_upto(struct ieee80211_node *ni,
942 struct ieee80211_rx_ampdu *rap, ieee80211_seq winstart)
943{
944 struct ieee80211vap *vap = ni->ni_vap;
945 ieee80211_seq seqno;
946 int i, r;
947
948 /*
949 * Flush any complete MSDU's with a sequence number lower
950 * than winstart. Gaps may exist. Note that we may actually
951 * dispatch frames past winstart if a run continues; this is
952 * an optimization that avoids having to do a separate pass
953 * to dispatch frames after moving the BA window start.
954 */
955 seqno = rap->rxa_start;
956 for (i = 0; i < rap->rxa_wnd; i++) {
957 if ((r = mbufq_len(&rap->rxa_mq[i])) != 0) {
958 (void) ampdu_dispatch_slot(rap, ni, i);
959 } else {
960 if (!IEEE80211_SEQ_BA_BEFORE(seqno, winstart))
961 break;
962 }
963 vap->iv_stats.is_ampdu_rx_oor += r;
964 seqno = IEEE80211_SEQ_INC(seqno);
965
966 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni,
967 "%s: moved slot up %d slots to start at %d (%d frames)",
968 __func__,
969 1,
970 seqno,
971 r);
972 }
973
974 /*
975 * If frames remain, copy the mbuf pointers down so
976 * they correspond to the offsets in the new window.
977 */
978 ampdu_rx_moveup(rap, ni, i, winstart);
979
980 /*
981 * Move the start of the BA window; we use the
982 * sequence number of the last MSDU that was
983 * passed up the stack+1 or winstart if stopped on
984 * a gap in the reorder buffer.
985 */
986 rap->rxa_start = seqno;
987}
988
989/*
990 * Process a received QoS data frame for an HT station. Handle
991 * A-MPDU reordering: if this frame is received out of order
992 * and falls within the BA window hold onto it. Otherwise if
993 * this frame completes a run, flush any pending frames. We
994 * return 1 if the frame is consumed. A 0 is returned if
995 * the frame should be processed normally by the caller.
996 *
997 * A-MSDU: handle hardware decap'ed A-MSDU frames that are
998 * pretending to be MPDU's. They're dispatched directly if
999 * able; or attempted to put into the receive reordering slot.
1000 */
1001int
1002ieee80211_ampdu_reorder(struct ieee80211_node *ni, struct mbuf *m,
1003 const struct ieee80211_rx_stats *rxs)
1004{
1005#define PROCESS 0 /* caller should process frame */
1006#define CONSUMED 1 /* frame consumed, caller does nothing */
1007 struct ieee80211vap *vap = ni->ni_vap;
1008 struct ieee80211_qosframe *wh;
1009 struct ieee80211_rx_ampdu *rap;
1010 ieee80211_seq rxseq;
1011 uint8_t tid;
1012 int off;
1013 int amsdu = ieee80211_check_rxseq_amsdu(rxs);
1014 int amsdu_end = ieee80211_check_rxseq_amsdu_more(rxs);
1015
1016 KASSERT((m->m_flags & (M_AMPDU | M_AMPDU_MPDU)) == M_AMPDU,
1017 ("!a-mpdu or already re-ordered, flags 0x%x", m->m_flags));
1018 KASSERT(ni->ni_flags & IEEE80211_NODE_HT, ("not an HT sta"));
1019
1020 /* NB: m_len known to be sufficient */
1021 wh = mtod(m, struct ieee80211_qosframe *);
1022 if (wh->i_fc[0] != IEEE80211_FC0_QOSDATA) {
1023 /*
1024 * Not QoS data, shouldn't get here but just
1025 * return it to the caller for processing.
1026 */
1027 return PROCESS;
1028 }
1029
1030 /*
1031 * 802.11-2012 9.3.2.10 - Duplicate detection and recovery.
1032 *
1033 * Multicast QoS data frames are checked against a different
1034 * counter, not the per-TID counter.
1035 */
1036 if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1037 return PROCESS;
1038
1039 tid = ieee80211_getqos(wh)[0];
1040 tid &= IEEE80211_QOS_TID;
1041 rap = &ni->ni_rx_ampdu[tid];
1042 if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0) {
1043 /*
1044 * No ADDBA request yet, don't touch.
1045 */
1046 return PROCESS;
1047 }
1048 rxseq = le16toh(*(uint16_t *)wh->i_seq);
1049 if ((rxseq & IEEE80211_SEQ_FRAG_MASK) != 0) {
1050 /*
1051 * Fragments are not allowed; toss.
1052 */
1053 IEEE80211_DISCARD_MAC(vap,
1054 IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr,
1055 "A-MPDU", "fragment, rxseq 0x%x tid %u%s", rxseq, tid,
1056 wh->i_fc[1] & IEEE80211_FC1_RETRY ? " (retransmit)" : "");
1057 vap->iv_stats.is_ampdu_rx_drop++;
1058 IEEE80211_NODE_STAT(ni, rx_drop);
1059 m_freem(m);
1060 return CONSUMED;
1061 }
1062 rxseq >>= IEEE80211_SEQ_SEQ_SHIFT;
1063 rap->rxa_nframes++;
1064
1065 /*
1066 * Handle waiting for the first frame to define the BAW.
1067 * Some firmware doesn't provide the RX of the starting point
1068 * of the BAW and we have to cope.
1069 */
1070 if (rap->rxa_flags & IEEE80211_AGGR_WAITRX) {
1071 rap->rxa_flags &= ~IEEE80211_AGGR_WAITRX;
1072 rap->rxa_start = rxseq;
1073 }
1074again:
1075 if (rxseq == rap->rxa_start) {
1076 /*
1077 * First frame in window.
1078 */
1079 if (rap->rxa_qframes != 0) {
1080 /*
1081 * Dispatch as many packets as we can.
1082 */
1083 KASSERT((mbufq_len(&rap->rxa_mq[0]) == 0), ("unexpected dup"));
1084 ampdu_dispatch(ni, m);
1085 ampdu_rx_dispatch(rap, ni);
1086 return CONSUMED;
1087 } else {
1088 /*
1089 * In order; advance window if needed and notify
1090 * caller to dispatch directly.
1091 */
1092 if (amsdu) {
1093 if (amsdu_end) {
1094 rap->rxa_start = IEEE80211_SEQ_INC(rxseq);
1095 IEEE80211_NODE_STAT(ni, rx_amsdu_more_end);
1096 } else {
1097 IEEE80211_NODE_STAT(ni, rx_amsdu_more);
1098 }
1099 } else {
1100 rap->rxa_start = IEEE80211_SEQ_INC(rxseq);
1101 }
1102 return PROCESS;
1103 }
1104 }
1105 /*
1106 * Frame is out of order; store if in the BA window.
1107 */
1108 /* calculate offset in BA window */
1109 off = IEEE80211_SEQ_SUB(rxseq, rap->rxa_start);
1110 if (off < rap->rxa_wnd) {
1111 /*
1112 * Common case (hopefully): in the BA window.
1113 * Sec 9.10.7.6.2 a) (p.137)
1114 */
1115
1116 /*
1117 * Check for frames sitting too long in the reorder queue.
1118 * This should only ever happen if frames are not delivered
1119 * without the sender otherwise notifying us (e.g. with a
1120 * BAR to move the window). Typically this happens because
1121 * of vendor bugs that cause the sequence number to jump.
1122 * When this happens we get a gap in the reorder queue that
1123 * leaves frame sitting on the queue until they get pushed
1124 * out due to window moves. When the vendor does not send
1125 * BAR this move only happens due to explicit packet sends
1126 *
1127 * NB: we only track the time of the oldest frame in the
1128 * reorder q; this means that if we flush we might push
1129 * frames that still "new"; if this happens then subsequent
1130 * frames will result in BA window moves which cost something
1131 * but is still better than a big throughput dip.
1132 */
1133 if (rap->rxa_qframes != 0) {
1134 /* XXX honor batimeout? */
1135 if (ticks - rap->rxa_age > ieee80211_ampdu_age) {
1136 /*
1137 * Too long since we received the first
1138 * frame; flush the reorder buffer.
1139 */
1140 if (rap->rxa_qframes != 0) {
1141 vap->iv_stats.is_ampdu_rx_age +=
1142 rap->rxa_qframes;
1143 ampdu_rx_flush(ni, rap);
1144 }
1145 /*
1146 * Advance the window if needed and notify
1147 * the caller to dispatch directly.
1148 */
1149 if (amsdu) {
1150 if (amsdu_end) {
1151 rap->rxa_start =
1152 IEEE80211_SEQ_INC(rxseq);
1153 IEEE80211_NODE_STAT(ni,
1154 rx_amsdu_more_end);
1155 } else {
1156 IEEE80211_NODE_STAT(ni,
1157 rx_amsdu_more);
1158 }
1159 } else {
1160 rap->rxa_start =
1161 IEEE80211_SEQ_INC(rxseq);
1162 }
1163 return PROCESS;
1164 }
1165 } else {
1166 /*
1167 * First frame, start aging timer.
1168 */
1169 rap->rxa_age = ticks;
1170 }
1171
1172 /* save packet - this consumes, no matter what */
1173 ampdu_rx_add_slot(rap, off, tid, rxseq, ni, m, rxs);
1174 return CONSUMED;
1175 }
1176 if (off < IEEE80211_SEQ_BA_RANGE) {
1177 /*
1178 * Outside the BA window, but within range;
1179 * flush the reorder q and move the window.
1180 * Sec 9.10.7.6.2 b) (p.138)
1181 */
1182 IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni,
1183 "move BA win <%u:%u> (%u frames) rxseq %u tid %u",
1184 rap->rxa_start,
1185 IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
1186 rap->rxa_qframes, rxseq, tid);
1187 vap->iv_stats.is_ampdu_rx_move++;
1188
1189 /*
1190 * The spec says to flush frames up to but not including:
1191 * WinStart_B = rxseq - rap->rxa_wnd + 1
1192 * Then insert the frame or notify the caller to process
1193 * it immediately. We can safely do this by just starting
1194 * over again because we know the frame will now be within
1195 * the BA window.
1196 */
1197 /* NB: rxa_wnd known to be >0 */
1198 ampdu_rx_flush_upto(ni, rap,
1199 IEEE80211_SEQ_SUB(rxseq, rap->rxa_wnd-1));
1200 goto again;
1201 } else {
1202 /*
1203 * Outside the BA window and out of range; toss.
1204 * Sec 9.10.7.6.2 c) (p.138)
1205 */
1206 IEEE80211_DISCARD_MAC(vap,
1207 IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr,
1208 "MPDU", "BA win <%u:%u> (%u frames) rxseq %u tid %u%s",
1209 rap->rxa_start,
1210 IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
1211 rap->rxa_qframes, rxseq, tid,
1212 wh->i_fc[1] & IEEE80211_FC1_RETRY ? " (retransmit)" : "");
1213 vap->iv_stats.is_ampdu_rx_drop++;
1214 IEEE80211_NODE_STAT(ni, rx_drop);
1215 m_freem(m);
1216 return CONSUMED;
1217 }
1218#undef CONSUMED
1219#undef PROCESS
1220}
1221
1222/*
1223 * Process a BAR ctl frame. Dispatch all frames up to
1224 * the sequence number of the frame. If this frame is
1225 * out of range it's discarded.
1226 */
1227void
1228ieee80211_recv_bar(struct ieee80211_node *ni, struct mbuf *m0)
1229{
1230 struct ieee80211vap *vap = ni->ni_vap;
1231 struct ieee80211_frame_bar *wh;
1232 struct ieee80211_rx_ampdu *rap;
1233 ieee80211_seq rxseq;
1234 int tid, off;
1235
1236 if (!ieee80211_recv_bar_ena) {
1237#if 0
1238 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_11N,
1239 ni->ni_macaddr, "BAR", "%s", "processing disabled");
1240#endif
1241 vap->iv_stats.is_ampdu_bar_bad++;
1242 return;
1243 }
1244 wh = mtod(m0, struct ieee80211_frame_bar *);
1245 /* XXX check basic BAR */
1246 tid = _IEEE80211_MASKSHIFT(le16toh(wh->i_ctl), IEEE80211_BAR_TID);
1247 rap = &ni->ni_rx_ampdu[tid];
1248 if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0) {
1249 /*
1250 * No ADDBA request yet, don't touch.
1251 */
1252 IEEE80211_DISCARD_MAC(vap,
1253 IEEE80211_MSG_INPUT | IEEE80211_MSG_11N,
1254 ni->ni_macaddr, "BAR", "no BA stream, tid %u", tid);
1255 vap->iv_stats.is_ampdu_bar_bad++;
1256 return;
1257 }
1258 vap->iv_stats.is_ampdu_bar_rx++;
1259 rxseq = le16toh(wh->i_seq) >> IEEE80211_SEQ_SEQ_SHIFT;
1260 if (rxseq == rap->rxa_start)
1261 return;
1262 /* calculate offset in BA window */
1263 off = IEEE80211_SEQ_SUB(rxseq, rap->rxa_start);
1264 if (off < IEEE80211_SEQ_BA_RANGE) {
1265 /*
1266 * Flush the reorder q up to rxseq and move the window.
1267 * Sec 9.10.7.6.3 a) (p.138)
1268 */
1269 IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni,
1270 "BAR moves BA win <%u:%u> (%u frames) rxseq %u tid %u",
1271 rap->rxa_start,
1272 IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
1273 rap->rxa_qframes, rxseq, tid);
1274 vap->iv_stats.is_ampdu_bar_move++;
1275
1276 ampdu_rx_flush_upto(ni, rap, rxseq);
1277 if (off >= rap->rxa_wnd) {
1278 /*
1279 * BAR specifies a window start to the right of BA
1280 * window; we must move it explicitly since
1281 * ampdu_rx_flush_upto will not.
1282 */
1283 rap->rxa_start = rxseq;
1284 }
1285 } else {
1286 /*
1287 * Out of range; toss.
1288 * Sec 9.10.7.6.3 b) (p.138)
1289 */
1290 IEEE80211_DISCARD_MAC(vap,
1291 IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr,
1292 "BAR", "BA win <%u:%u> (%u frames) rxseq %u tid %u%s",
1293 rap->rxa_start,
1294 IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1),
1295 rap->rxa_qframes, rxseq, tid,
1296 wh->i_fc[1] & IEEE80211_FC1_RETRY ? " (retransmit)" : "");
1297 vap->iv_stats.is_ampdu_bar_oow++;
1298 IEEE80211_NODE_STAT(ni, rx_drop);
1299 }
1300}
1301
1302/*
1303 * Setup HT-specific state in a node. Called only
1304 * when HT use is negotiated so we don't do extra
1305 * work for temporary and/or legacy sta's.
1306 */
1307void
1308ieee80211_ht_node_init(struct ieee80211_node *ni)
1309{
1310 struct ieee80211_tx_ampdu *tap;
1311 int tid;
1312
1313 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
1314 ni,
1315 "%s: called (%p)",
1316 __func__,
1317 ni);
1318
1319 if (ni->ni_flags & IEEE80211_NODE_HT) {
1320 /*
1321 * Clean AMPDU state on re-associate. This handles the case
1322 * where a station leaves w/o notifying us and then returns
1323 * before node is reaped for inactivity.
1324 */
1325 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
1326 ni,
1327 "%s: calling cleanup (%p)",
1328 __func__, ni);
1329 ieee80211_ht_node_cleanup(ni);
1330 }
1331 for (tid = 0; tid < WME_NUM_TID; tid++) {
1332 tap = &ni->ni_tx_ampdu[tid];
1333 tap->txa_tid = tid;
1334 tap->txa_ni = ni;
1335 ieee80211_txampdu_init_pps(tap);
1336 /* NB: further initialization deferred */
1337 ieee80211_ampdu_rx_init_rap(ni, &ni->ni_rx_ampdu[tid]);
1338 }
1339 ni->ni_flags |= IEEE80211_NODE_HT | IEEE80211_NODE_AMPDU |
1340 IEEE80211_NODE_AMSDU;
1341}
1342
1343/*
1344 * Cleanup HT-specific state in a node. Called only
1345 * when HT use has been marked.
1346 */
1347void
1348ieee80211_ht_node_cleanup(struct ieee80211_node *ni)
1349{
1350 struct ieee80211com *ic = ni->ni_ic;
1351 int i;
1352
1353 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
1354 ni,
1355 "%s: called (%p)",
1356 __func__, ni);
1357
1358 KASSERT(ni->ni_flags & IEEE80211_NODE_HT, ("not an HT node"));
1359
1360 /* XXX optimize this */
1361 for (i = 0; i < WME_NUM_TID; i++) {
1362 struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[i];
1363 if (tap->txa_flags & IEEE80211_AGGR_SETUP)
1364 ampdu_tx_stop(tap);
1365 }
1366 for (i = 0; i < WME_NUM_TID; i++)
1367 ic->ic_ampdu_rx_stop(ni, &ni->ni_rx_ampdu[i]);
1368
1369 ni->ni_htcap = 0;
1370 ni->ni_flags &= ~IEEE80211_NODE_HT_ALL;
1371}
1372
1373/*
1374 * Age out HT resources for a station.
1375 */
1376void
1377ieee80211_ht_node_age(struct ieee80211_node *ni)
1378{
1379 struct ieee80211vap *vap = ni->ni_vap;
1380 uint8_t tid;
1381
1382 KASSERT(ni->ni_flags & IEEE80211_NODE_HT, ("not an HT sta"));
1383
1384 for (tid = 0; tid < WME_NUM_TID; tid++) {
1385 struct ieee80211_rx_ampdu *rap;
1386
1387 rap = &ni->ni_rx_ampdu[tid];
1388 if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0)
1389 continue;
1390 if (rap->rxa_qframes == 0)
1391 continue;
1392 /*
1393 * Check for frames sitting too long in the reorder queue.
1394 * See above for more details on what's happening here.
1395 */
1396 /* XXX honor batimeout? */
1397 if (ticks - rap->rxa_age > ieee80211_ampdu_age) {
1398 /*
1399 * Too long since we received the first
1400 * frame; flush the reorder buffer.
1401 */
1402 vap->iv_stats.is_ampdu_rx_age += rap->rxa_qframes;
1403 ampdu_rx_flush(ni, rap);
1404 }
1405 }
1406}
1407
1408static struct ieee80211_channel *
1409findhtchan(struct ieee80211com *ic, struct ieee80211_channel *c, int htflags)
1410{
1411 return ieee80211_find_channel(ic, c->ic_freq,
1412 (c->ic_flags &~ IEEE80211_CHAN_HT) | htflags);
1413}
1414
1415/*
1416 * Adjust a channel to be HT/non-HT according to the vap's configuration.
1417 */
1418struct ieee80211_channel *
1419ieee80211_ht_adjust_channel(struct ieee80211com *ic,
1420 struct ieee80211_channel *chan, int flags)
1421{
1422 struct ieee80211_channel *c;
1423
1424 if (flags & IEEE80211_FHT_HT) {
1425 /* promote to HT if possible */
1426 if (flags & IEEE80211_FHT_USEHT40) {
1427 if (!IEEE80211_IS_CHAN_HT40(chan)) {
1428 /* NB: arbitrarily pick ht40+ over ht40- */
1429 c = findhtchan(ic, chan, IEEE80211_CHAN_HT40U);
1430 if (c == NULL)
1431 c = findhtchan(ic, chan,
1432 IEEE80211_CHAN_HT40D);
1433 if (c == NULL)
1434 c = findhtchan(ic, chan,
1435 IEEE80211_CHAN_HT20);
1436 if (c != NULL)
1437 chan = c;
1438 }
1439 } else if (!IEEE80211_IS_CHAN_HT20(chan)) {
1440 c = findhtchan(ic, chan, IEEE80211_CHAN_HT20);
1441 if (c != NULL)
1442 chan = c;
1443 }
1444 } else if (IEEE80211_IS_CHAN_HT(chan)) {
1445 /* demote to legacy, HT use is disabled */
1446 c = ieee80211_find_channel(ic, chan->ic_freq,
1447 chan->ic_flags &~ IEEE80211_CHAN_HT);
1448 if (c != NULL)
1449 chan = c;
1450 }
1451 return chan;
1452}
1453
1454/*
1455 * Setup HT-specific state for a legacy WDS peer.
1456 */
1457void
1458ieee80211_ht_wds_init(struct ieee80211_node *ni)
1459{
1460 struct ieee80211vap *vap = ni->ni_vap;
1461 struct ieee80211_tx_ampdu *tap;
1462 int tid;
1463
1464 KASSERT(vap->iv_flags_ht & IEEE80211_FHT_HT, ("no HT requested"));
1465
1466 /* XXX check scan cache in case peer has an ap and we have info */
1467 /*
1468 * If setup with a legacy channel; locate an HT channel.
1469 * Otherwise if the inherited channel (from a companion
1470 * AP) is suitable use it so we use the same location
1471 * for the extension channel).
1472 */
1473 ni->ni_chan = ieee80211_ht_adjust_channel(ni->ni_ic,
1474 ni->ni_chan, ieee80211_htchanflags(ni->ni_chan));
1475
1476 ni->ni_htcap = 0;
1477 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
1478 ni->ni_htcap |= IEEE80211_HTCAP_SHORTGI20;
1479 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
1480 ni->ni_htcap |= IEEE80211_HTCAP_CHWIDTH40;
1481 ni->ni_chw = 40;
1482 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan))
1483 ni->ni_ht2ndchan = IEEE80211_HTINFO_2NDCHAN_ABOVE;
1484 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan))
1485 ni->ni_ht2ndchan = IEEE80211_HTINFO_2NDCHAN_BELOW;
1486 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
1487 ni->ni_htcap |= IEEE80211_HTCAP_SHORTGI40;
1488 } else {
1489 ni->ni_chw = 20;
1490 ni->ni_ht2ndchan = IEEE80211_HTINFO_2NDCHAN_NONE;
1491 }
1492 ni->ni_htctlchan = ni->ni_chan->ic_ieee;
1493 if (vap->iv_flags_ht & IEEE80211_FHT_RIFS)
1494 ni->ni_flags |= IEEE80211_NODE_RIFS;
1495 /* XXX does it make sense to enable SMPS? */
1496
1497 ni->ni_htopmode = 0; /* XXX need protection state */
1498 ni->ni_htstbc = 0; /* XXX need info */
1499
1500 for (tid = 0; tid < WME_NUM_TID; tid++) {
1501 tap = &ni->ni_tx_ampdu[tid];
1502 tap->txa_tid = tid;
1503 ieee80211_txampdu_init_pps(tap);
1504 }
1505 /* NB: AMPDU tx/rx governed by IEEE80211_FHT_AMPDU_{TX,RX} */
1506 ni->ni_flags |= IEEE80211_NODE_HT | IEEE80211_NODE_AMPDU |
1507 IEEE80211_NODE_AMSDU;
1508}
1509
1510/*
1511 * Notify a VAP of a change in the HTINFO ie if it's a hostap VAP.
1512 *
1513 * This is to be called from the deferred HT protection update
1514 * task once the flags are updated.
1515 */
1516void
1517ieee80211_htinfo_notify(struct ieee80211vap *vap)
1518{
1519
1520 IEEE80211_LOCK_ASSERT(vap->iv_ic);
1521
1522 if (vap->iv_opmode != IEEE80211_M_HOSTAP)
1523 return;
1524 if (vap->iv_state != IEEE80211_S_RUN ||
1525 !IEEE80211_IS_CHAN_HT(vap->iv_bss->ni_chan))
1526 return;
1527
1528 IEEE80211_NOTE(vap,
1529 IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N,
1530 vap->iv_bss,
1531 "HT bss occupancy change: %d sta, %d ht, "
1532 "%d ht40%s, HT protmode now 0x%x"
1533 , vap->iv_sta_assoc
1534 , vap->iv_ht_sta_assoc
1535 , vap->iv_ht40_sta_assoc
1536 , (vap->iv_flags_ht & IEEE80211_FHT_NONHT_PR) ?
1537 ", non-HT sta present" : ""
1538 , vap->iv_curhtprotmode);
1539
1540 ieee80211_beacon_notify(vap, IEEE80211_BEACON_HTINFO);
1541}
1542
1543/*
1544 * Calculate HT protection mode from current
1545 * state and handle updates.
1546 */
1547static void
1548htinfo_update(struct ieee80211vap *vap)
1549{
1550 struct ieee80211com *ic = vap->iv_ic;
1551 uint8_t protmode;
1552
1553 if (vap->iv_sta_assoc != vap->iv_ht_sta_assoc) {
1554 protmode = IEEE80211_HTINFO_OPMODE_MIXED
1555 | IEEE80211_HTINFO_NONHT_PRESENT;
1556 } else if (vap->iv_flags_ht & IEEE80211_FHT_NONHT_PR) {
1557 protmode = IEEE80211_HTINFO_OPMODE_PROTOPT
1558 | IEEE80211_HTINFO_NONHT_PRESENT;
1559 } else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
1560 IEEE80211_IS_CHAN_HT40(ic->ic_bsschan) &&
1561 vap->iv_sta_assoc != vap->iv_ht40_sta_assoc) {
1562 protmode = IEEE80211_HTINFO_OPMODE_HT20PR;
1563 } else {
1564 protmode = IEEE80211_HTINFO_OPMODE_PURE;
1565 }
1566 if (protmode != vap->iv_curhtprotmode) {
1567 vap->iv_curhtprotmode = protmode;
1568 /* Update VAP with new protection mode */
1569 ieee80211_vap_update_ht_protmode(vap);
1570 }
1571}
1572
1573/*
1574 * Handle an HT station joining a BSS.
1575 */
1576void
1577ieee80211_ht_node_join(struct ieee80211_node *ni)
1578{
1579 struct ieee80211vap *vap = ni->ni_vap;
1580
1581 IEEE80211_LOCK_ASSERT(vap->iv_ic);
1582
1583 if (ni->ni_flags & IEEE80211_NODE_HT) {
1584 vap->iv_ht_sta_assoc++;
1585 if (ni->ni_chw == 40)
1586 vap->iv_ht40_sta_assoc++;
1587 }
1588 htinfo_update(vap);
1589}
1590
1591/*
1592 * Handle an HT station leaving a BSS.
1593 */
1594void
1595ieee80211_ht_node_leave(struct ieee80211_node *ni)
1596{
1597 struct ieee80211vap *vap = ni->ni_vap;
1598
1599 IEEE80211_LOCK_ASSERT(vap->iv_ic);
1600
1601 if (ni->ni_flags & IEEE80211_NODE_HT) {
1602 vap->iv_ht_sta_assoc--;
1603 if (ni->ni_chw == 40)
1604 vap->iv_ht40_sta_assoc--;
1605 }
1606 htinfo_update(vap);
1607}
1608
1609/*
1610 * Public version of htinfo_update; used for processing
1611 * beacon frames from overlapping bss.
1612 *
1613 * Caller can specify either IEEE80211_HTINFO_OPMODE_MIXED
1614 * (on receipt of a beacon that advertises MIXED) or
1615 * IEEE80211_HTINFO_OPMODE_PROTOPT (on receipt of a beacon
1616 * from an overlapping legacy bss). We treat MIXED with
1617 * a higher precedence than PROTOPT (i.e. we will not change
1618 * change PROTOPT -> MIXED; only MIXED -> PROTOPT). This
1619 * corresponds to how we handle things in htinfo_update.
1620 *
1621 */
1622void
1623ieee80211_htprot_update(struct ieee80211vap *vap, int protmode)
1624{
1625 struct ieee80211com *ic = vap->iv_ic;
1626#define OPMODE(x) _IEEE80211_SHIFTMASK(x, IEEE80211_HTINFO_OPMODE)
1627 IEEE80211_LOCK(ic);
1628
1629 /* track non-HT station presence */
1630 KASSERT(protmode & IEEE80211_HTINFO_NONHT_PRESENT,
1631 ("protmode 0x%x", protmode));
1632 vap->iv_flags_ht |= IEEE80211_FHT_NONHT_PR;
1633 vap->iv_lastnonht = ticks;
1634
1635 if (protmode != vap->iv_curhtprotmode &&
1636 (OPMODE(vap->iv_curhtprotmode) != IEEE80211_HTINFO_OPMODE_MIXED ||
1637 OPMODE(protmode) == IEEE80211_HTINFO_OPMODE_PROTOPT)) {
1638 vap->iv_curhtprotmode = protmode;
1639 /* Update VAP with new protection mode */
1640 ieee80211_vap_update_ht_protmode(vap);
1641 }
1642 IEEE80211_UNLOCK(ic);
1643#undef OPMODE
1644}
1645
1646/*
1647 * Time out presence of an overlapping bss with non-HT
1648 * stations. When operating in hostap mode we listen for
1649 * beacons from other stations and if we identify a non-HT
1650 * station is present we update the opmode field of the
1651 * HTINFO ie. To identify when all non-HT stations are
1652 * gone we time out this condition.
1653 */
1654void
1655ieee80211_ht_timeout(struct ieee80211vap *vap)
1656{
1657
1658 IEEE80211_LOCK_ASSERT(vap->iv_ic);
1659
1660 if ((vap->iv_flags_ht & IEEE80211_FHT_NONHT_PR) &&
1661 ieee80211_time_after(ticks, vap->iv_lastnonht + IEEE80211_NONHT_PRESENT_AGE)) {
1662 IEEE80211_DPRINTF(vap, IEEE80211_MSG_11N,
1663 "%s", "time out non-HT STA present on channel");
1664 vap->iv_flags_ht &= ~IEEE80211_FHT_NONHT_PR;
1665 htinfo_update(vap);
1666 }
1667}
1668
1669/*
1670 * Process an 802.11n HT capabilities ie.
1671 */
1672void
1673ieee80211_parse_htcap(struct ieee80211_node *ni, const uint8_t *ie)
1674{
1675 if (ie[0] == IEEE80211_ELEMID_VENDOR) {
1676 /*
1677 * Station used Vendor OUI ie to associate;
1678 * mark the node so when we respond we'll use
1679 * the Vendor OUI's and not the standard ie's.
1680 */
1681 ni->ni_flags |= IEEE80211_NODE_HTCOMPAT;
1682 ie += 4;
1683 } else
1684 ni->ni_flags &= ~IEEE80211_NODE_HTCOMPAT;
1685
1686 ni->ni_htcap = le16dec(ie +
1687 __offsetof(struct ieee80211_ie_htcap, hc_cap));
1688 ni->ni_htparam = ie[__offsetof(struct ieee80211_ie_htcap, hc_param)];
1689}
1690
1691static void
1692htinfo_parse(struct ieee80211_node *ni,
1693 const struct ieee80211_ie_htinfo *htinfo)
1694{
1695 uint16_t w;
1696
1697 ni->ni_htctlchan = htinfo->hi_ctrlchannel;
1698 ni->ni_ht2ndchan = _IEEE80211_SHIFTMASK(htinfo->hi_byte1,
1699 IEEE80211_HTINFO_2NDCHAN);
1700 w = le16dec(&htinfo->hi_byte2);
1701 ni->ni_htopmode = _IEEE80211_SHIFTMASK(w, IEEE80211_HTINFO_OPMODE);
1702 w = le16dec(&htinfo->hi_byte45);
1703 ni->ni_htstbc = _IEEE80211_SHIFTMASK(w, IEEE80211_HTINFO_BASIC_STBCMCS);
1704}
1705
1706/*
1707 * Parse an 802.11n HT info ie and save useful information
1708 * to the node state. Note this does not effect any state
1709 * changes such as for channel width change.
1710 */
1711void
1712ieee80211_parse_htinfo(struct ieee80211_node *ni, const uint8_t *ie)
1713{
1714 if (ie[0] == IEEE80211_ELEMID_VENDOR)
1715 ie += 4;
1716 htinfo_parse(ni, (const struct ieee80211_ie_htinfo *) ie);
1717}
1718
1719/*
1720 * Handle 11n/11ac channel switch.
1721 *
1722 * Use the received HT/VHT ie's to identify the right channel to use.
1723 * If we cannot locate it in the channel table then fallback to
1724 * legacy operation.
1725 *
1726 * Note that we use this information to identify the node's
1727 * channel only; the caller is responsible for insuring any
1728 * required channel change is done (e.g. in sta mode when
1729 * parsing the contents of a beacon frame).
1730 */
1731static int
1732htinfo_update_chw(struct ieee80211_node *ni, int htflags, int vhtflags)
1733{
1734 struct ieee80211com *ic = ni->ni_ic;
1735 struct ieee80211_channel *c;
1736 int chanflags;
1737 int ret = 0;
1738
1739 /*
1740 * First step - do HT/VHT only channel lookup based on operating mode
1741 * flags. This involves masking out the VHT flags as well.
1742 * Otherwise we end up doing the full channel walk each time
1743 * we trigger this, which is expensive.
1744 */
1745 chanflags = (ni->ni_chan->ic_flags &~
1746 (IEEE80211_CHAN_HT | IEEE80211_CHAN_VHT)) | htflags | vhtflags;
1747
1748 if (chanflags == ni->ni_chan->ic_flags)
1749 goto done;
1750
1751 /*
1752 * If HT /or/ VHT flags have changed then check both.
1753 * We need to start by picking a HT channel anyway.
1754 */
1755
1756 c = NULL;
1757 chanflags = (ni->ni_chan->ic_flags &~
1758 (IEEE80211_CHAN_HT | IEEE80211_CHAN_VHT)) | htflags;
1759 /* XXX not right for ht40- */
1760 c = ieee80211_find_channel(ic, ni->ni_chan->ic_freq, chanflags);
1761 if (c == NULL && (htflags & IEEE80211_CHAN_HT40)) {
1762 /*
1763 * No HT40 channel entry in our table; fall back
1764 * to HT20 operation. This should not happen.
1765 */
1766 c = findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT20);
1767#if 0
1768 IEEE80211_NOTE(ni->ni_vap,
1769 IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
1770 "no HT40 channel (freq %u), falling back to HT20",
1771 ni->ni_chan->ic_freq);
1772#endif
1773 /* XXX stat */
1774 }
1775
1776 /* Nothing found - leave it alone; move onto VHT */
1777 if (c == NULL)
1778 c = ni->ni_chan;
1779
1780 /*
1781 * If it's non-HT, then bail out now.
1782 */
1783 if (! IEEE80211_IS_CHAN_HT(c)) {
1784 IEEE80211_NOTE(ni->ni_vap,
1785 IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
1786 "not HT; skipping VHT check (%u/0x%x)",
1787 c->ic_freq, c->ic_flags);
1788 goto done;
1789 }
1790
1791 /*
1792 * Next step - look at the current VHT flags and determine
1793 * if we need to upgrade. Mask out the VHT and HT flags since
1794 * the vhtflags field will already have the correct HT
1795 * flags to use.
1796 */
1797 if (IEEE80211_CONF_VHT(ic) && ni->ni_vhtcap != 0 && vhtflags != 0) {
1798 chanflags = (c->ic_flags
1799 &~ (IEEE80211_CHAN_HT | IEEE80211_CHAN_VHT))
1800 | vhtflags;
1801 IEEE80211_NOTE(ni->ni_vap,
1802 IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N,
1803 ni,
1804 "%s: VHT; chanwidth=0x%02x; vhtflags=0x%08x",
1805 __func__, ni->ni_vht_chanwidth, vhtflags);
1806
1807 IEEE80211_NOTE(ni->ni_vap,
1808 IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N,
1809 ni,
1810 "%s: VHT; trying lookup for %d/0x%08x",
1811 __func__, c->ic_freq, chanflags);
1812 c = ieee80211_find_channel(ic, c->ic_freq, chanflags);
1813 }
1814
1815 /* Finally, if it's changed */
1816 if (c != NULL && c != ni->ni_chan) {
1817 IEEE80211_NOTE(ni->ni_vap,
1818 IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
1819 "switch station to %s%d channel %u/0x%x",
1820 IEEE80211_IS_CHAN_VHT(c) ? "VHT" : "HT",
1821 IEEE80211_IS_CHAN_VHT80(c) ? 80 :
1822 (IEEE80211_IS_CHAN_HT40(c) ? 40 : 20),
1823 c->ic_freq, c->ic_flags);
1824 ni->ni_chan = c;
1825 ret = 1;
1826 }
1827 /* NB: caller responsible for forcing any channel change */
1828
1829done:
1830 /* update node's (11n) tx channel width */
1831 ni->ni_chw = IEEE80211_IS_CHAN_HT40(ni->ni_chan)? 40 : 20;
1832 return (ret);
1833}
1834
1835/*
1836 * Update 11n MIMO PS state according to received htcap.
1837 */
1838static __inline int
1839htcap_update_mimo_ps(struct ieee80211_node *ni)
1840{
1841 uint16_t oflags = ni->ni_flags;
1842
1843 switch (ni->ni_htcap & IEEE80211_HTCAP_SMPS) {
1844 case IEEE80211_HTCAP_SMPS_DYNAMIC:
1845 ni->ni_flags |= IEEE80211_NODE_MIMO_PS;
1846 ni->ni_flags |= IEEE80211_NODE_MIMO_RTS;
1847 break;
1848 case IEEE80211_HTCAP_SMPS_ENA:
1849 ni->ni_flags |= IEEE80211_NODE_MIMO_PS;
1850 ni->ni_flags &= ~IEEE80211_NODE_MIMO_RTS;
1851 break;
1852 case IEEE80211_HTCAP_SMPS_OFF:
1853 default: /* disable on rx of reserved value */
1854 ni->ni_flags &= ~IEEE80211_NODE_MIMO_PS;
1855 ni->ni_flags &= ~IEEE80211_NODE_MIMO_RTS;
1856 break;
1857 }
1858 return (oflags ^ ni->ni_flags);
1859}
1860
1861/*
1862 * Update short GI state according to received htcap
1863 * and local settings.
1864 */
1865static __inline void
1866htcap_update_shortgi(struct ieee80211_node *ni)
1867{
1868 struct ieee80211vap *vap = ni->ni_vap;
1869
1870 ni->ni_flags &= ~(IEEE80211_NODE_SGI20|IEEE80211_NODE_SGI40);
1871 if ((ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20) &&
1872 (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20))
1873 ni->ni_flags |= IEEE80211_NODE_SGI20;
1874 if ((ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40) &&
1875 (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40))
1876 ni->ni_flags |= IEEE80211_NODE_SGI40;
1877}
1878
1879/*
1880 * Update LDPC state according to received htcap
1881 * and local settings.
1882 */
1883static __inline void
1884htcap_update_ldpc(struct ieee80211_node *ni)
1885{
1886 struct ieee80211vap *vap = ni->ni_vap;
1887
1888 if ((ni->ni_htcap & IEEE80211_HTCAP_LDPC) &&
1889 (vap->iv_flags_ht & IEEE80211_FHT_LDPC_TX))
1890 ni->ni_flags |= IEEE80211_NODE_LDPC;
1891}
1892
1893/*
1894 * Parse and update HT-related state extracted from
1895 * the HT cap and info ie's.
1896 *
1897 * This is called from the STA management path and
1898 * the ieee80211_node_join() path. It will take into
1899 * account the IEs discovered during scanning and
1900 * adjust things accordingly.
1901 */
1902void
1903ieee80211_ht_updateparams(struct ieee80211_node *ni,
1904 const uint8_t *htcapie, const uint8_t *htinfoie)
1905{
1906 struct ieee80211vap *vap = ni->ni_vap;
1907 const struct ieee80211_ie_htinfo *htinfo;
1908
1909 ieee80211_parse_htcap(ni, htcapie);
1910 if (vap->iv_htcaps & IEEE80211_HTC_SMPS)
1911 htcap_update_mimo_ps(ni);
1912 htcap_update_shortgi(ni);
1913 htcap_update_ldpc(ni);
1914
1915 if (htinfoie[0] == IEEE80211_ELEMID_VENDOR)
1916 htinfoie += 4;
1917 htinfo = (const struct ieee80211_ie_htinfo *) htinfoie;
1918 htinfo_parse(ni, htinfo);
1919
1920 /*
1921 * Defer the node channel change; we need to now
1922 * update VHT parameters before we do it.
1923 */
1924
1925 if ((htinfo->hi_byte1 & IEEE80211_HTINFO_RIFSMODE_PERM) &&
1926 (vap->iv_flags_ht & IEEE80211_FHT_RIFS))
1927 ni->ni_flags |= IEEE80211_NODE_RIFS;
1928 else
1929 ni->ni_flags &= ~IEEE80211_NODE_RIFS;
1930}
1931
1932static uint32_t
1933ieee80211_vht_get_vhtflags(struct ieee80211_node *ni, uint32_t htflags)
1934{
1935 struct ieee80211vap *vap = ni->ni_vap;
1936 uint32_t vhtflags = 0;
1937
1938 vhtflags = 0;
1939 if (ni->ni_flags & IEEE80211_NODE_VHT && vap->iv_flags_vht & IEEE80211_FVHT_VHT) {
1940 if ((ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_160MHZ) &&
1941 /* XXX 2 means "160MHz and 80+80MHz", 1 means "160MHz" */
1942 (_IEEE80211_MASKSHIFT(vap->iv_vhtcaps,
1943 IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK) >= 1) &&
1944 (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT160)) {
1945 vhtflags = IEEE80211_CHAN_VHT160;
1946 /* Mirror the HT40 flags */
1947 if (htflags == IEEE80211_CHAN_HT40U) {
1948 vhtflags |= IEEE80211_CHAN_HT40U;
1949 } else if (htflags == IEEE80211_CHAN_HT40D) {
1950 vhtflags |= IEEE80211_CHAN_HT40D;
1951 }
1952 } else if ((ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_80P80MHZ) &&
1953 /* XXX 2 means "160MHz and 80+80MHz" */
1954 (_IEEE80211_MASKSHIFT(vap->iv_vhtcaps,
1955 IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK) == 2) &&
1956 (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80P80)) {
1957 vhtflags = IEEE80211_CHAN_VHT80P80;
1958 /* Mirror the HT40 flags */
1959 if (htflags == IEEE80211_CHAN_HT40U) {
1960 vhtflags |= IEEE80211_CHAN_HT40U;
1961 } else if (htflags == IEEE80211_CHAN_HT40D) {
1962 vhtflags |= IEEE80211_CHAN_HT40D;
1963 }
1964 } else if ((ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_80MHZ) &&
1965 (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80)) {
1966 vhtflags = IEEE80211_CHAN_VHT80;
1967 /* Mirror the HT40 flags */
1968 if (htflags == IEEE80211_CHAN_HT40U) {
1969 vhtflags |= IEEE80211_CHAN_HT40U;
1970 } else if (htflags == IEEE80211_CHAN_HT40D) {
1971 vhtflags |= IEEE80211_CHAN_HT40D;
1972 }
1973 } else if (ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_USE_HT) {
1974 /* Mirror the HT40 flags */
1975 /*
1976 * XXX TODO: if ht40 is disabled, but vht40 isn't
1977 * disabled then this logic will get very, very sad.
1978 * It's quite possible the only sane thing to do is
1979 * to not have vht40 as an option, and just obey
1980 * 'ht40' as that flag.
1981 */
1982 if ((htflags == IEEE80211_CHAN_HT40U) &&
1983 (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT40)) {
1984 vhtflags = IEEE80211_CHAN_VHT40U
1985 | IEEE80211_CHAN_HT40U;
1986 } else if (htflags == IEEE80211_CHAN_HT40D &&
1987 (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT40)) {
1988 vhtflags = IEEE80211_CHAN_VHT40D
1989 | IEEE80211_CHAN_HT40D;
1990 } else if (htflags == IEEE80211_CHAN_HT20) {
1991 vhtflags = IEEE80211_CHAN_VHT20
1992 | IEEE80211_CHAN_HT20;
1993 }
1994 } else {
1995 vhtflags = IEEE80211_CHAN_VHT20;
1996 }
1997 }
1998 return (vhtflags);
1999}
2000
2001/*
2002 * Final part of updating the HT parameters.
2003 *
2004 * This is called from the STA management path and
2005 * the ieee80211_node_join() path. It will take into
2006 * account the IEs discovered during scanning and
2007 * adjust things accordingly.
2008 *
2009 * This is done after a call to ieee80211_ht_updateparams()
2010 * because it (and the upcoming VHT version of updateparams)
2011 * needs to ensure everything is parsed before htinfo_update_chw()
2012 * is called - which will change the channel config for the
2013 * node for us.
2014 */
2015int
2016ieee80211_ht_updateparams_final(struct ieee80211_node *ni,
2017 const uint8_t *htcapie, const uint8_t *htinfoie)
2018{
2019 struct ieee80211vap *vap = ni->ni_vap;
2020 const struct ieee80211_ie_htinfo *htinfo;
2021 int htflags, vhtflags;
2022 int ret = 0;
2023
2024 htinfo = (const struct ieee80211_ie_htinfo *) htinfoie;
2025
2026 htflags = (vap->iv_flags_ht & IEEE80211_FHT_HT) ?
2027 IEEE80211_CHAN_HT20 : 0;
2028
2029 /* NB: honor operating mode constraint */
2030 if ((htinfo->hi_byte1 & IEEE80211_HTINFO_TXWIDTH_2040) &&
2031 (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)) {
2032 if (ni->ni_ht2ndchan == IEEE80211_HTINFO_2NDCHAN_ABOVE)
2033 htflags = IEEE80211_CHAN_HT40U;
2034 else if (ni->ni_ht2ndchan == IEEE80211_HTINFO_2NDCHAN_BELOW)
2035 htflags = IEEE80211_CHAN_HT40D;
2036 }
2037
2038 /*
2039 * VHT flags - do much the same; check whether VHT is available
2040 * and if so, what our ideal channel use would be based on our
2041 * capabilities and the (pre-parsed) VHT info IE.
2042 */
2043 vhtflags = ieee80211_vht_get_vhtflags(ni, htflags);
2044
2045 if (htinfo_update_chw(ni, htflags, vhtflags))
2046 ret = 1;
2047
2048 return (ret);
2049}
2050
2051/*
2052 * Parse and update HT-related state extracted from the HT cap ie
2053 * for a station joining an HT BSS.
2054 *
2055 * This is called from the hostap path for each station.
2056 */
2057void
2058ieee80211_ht_updatehtcap(struct ieee80211_node *ni, const uint8_t *htcapie)
2059{
2060 struct ieee80211vap *vap = ni->ni_vap;
2061
2062 ieee80211_parse_htcap(ni, htcapie);
2063 if (vap->iv_htcaps & IEEE80211_HTC_SMPS)
2064 htcap_update_mimo_ps(ni);
2065 htcap_update_shortgi(ni);
2066 htcap_update_ldpc(ni);
2067}
2068
2069/*
2070 * Called once HT and VHT capabilities are parsed in hostap mode -
2071 * this will adjust the channel configuration of the given node
2072 * based on the configuration and capabilities.
2073 */
2074void
2075ieee80211_ht_updatehtcap_final(struct ieee80211_node *ni)
2076{
2077 struct ieee80211vap *vap = ni->ni_vap;
2078 int htflags;
2079 int vhtflags;
2080
2081 /* NB: honor operating mode constraint */
2082 /* XXX 40 MHz intolerant */
2083 htflags = (vap->iv_flags_ht & IEEE80211_FHT_HT) ?
2084 IEEE80211_CHAN_HT20 : 0;
2085 if ((ni->ni_htcap & IEEE80211_HTCAP_CHWIDTH40) &&
2086 (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)) {
2087 if (IEEE80211_IS_CHAN_HT40U(vap->iv_bss->ni_chan))
2088 htflags = IEEE80211_CHAN_HT40U;
2089 else if (IEEE80211_IS_CHAN_HT40D(vap->iv_bss->ni_chan))
2090 htflags = IEEE80211_CHAN_HT40D;
2091 }
2092 /*
2093 * VHT flags - do much the same; check whether VHT is available
2094 * and if so, what our ideal channel use would be based on our
2095 * capabilities and the (pre-parsed) VHT info IE.
2096 */
2097 vhtflags = ieee80211_vht_get_vhtflags(ni, htflags);
2098
2099 (void) htinfo_update_chw(ni, htflags, vhtflags);
2100}
2101
2102/*
2103 * Install received HT rate set by parsing the HT cap ie.
2104 */
2105int
2106ieee80211_setup_htrates(struct ieee80211_node *ni, const uint8_t *ie, int flags)
2107{
2108 struct ieee80211com *ic = ni->ni_ic;
2109 struct ieee80211vap *vap = ni->ni_vap;
2110 const struct ieee80211_ie_htcap *htcap;
2111 struct ieee80211_htrateset *rs;
2112 int i, maxequalmcs, maxunequalmcs;
2113
2114 maxequalmcs = ic->ic_txstream * 8 - 1;
2115 maxunequalmcs = 0;
2116 if (ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL) {
2117 if (ic->ic_txstream >= 2)
2118 maxunequalmcs = 38;
2119 if (ic->ic_txstream >= 3)
2120 maxunequalmcs = 52;
2121 if (ic->ic_txstream >= 4)
2122 maxunequalmcs = 76;
2123 }
2124
2125 rs = &ni->ni_htrates;
2126 memset(rs, 0, sizeof(*rs));
2127 if (ie != NULL) {
2128 if (ie[0] == IEEE80211_ELEMID_VENDOR)
2129 ie += 4;
2130 htcap = (const struct ieee80211_ie_htcap *) ie;
2131 for (i = 0; i < IEEE80211_HTRATE_MAXSIZE; i++) {
2132 if (isclr(htcap->hc_mcsset, i))
2133 continue;
2134 if (rs->rs_nrates == IEEE80211_HTRATE_MAXSIZE) {
2135 IEEE80211_NOTE(vap,
2136 IEEE80211_MSG_XRATE | IEEE80211_MSG_11N, ni,
2137 "WARNING, HT rate set too large; only "
2138 "using %u rates", IEEE80211_HTRATE_MAXSIZE);
2139 vap->iv_stats.is_rx_rstoobig++;
2140 break;
2141 }
2142 if (i <= 31 && i > maxequalmcs)
2143 continue;
2144 if (i == 32 &&
2145 (ic->ic_htcaps & IEEE80211_HTC_TXMCS32) == 0)
2146 continue;
2147 if (i > 32 && i > maxunequalmcs)
2148 continue;
2149 rs->rs_rates[rs->rs_nrates++] = i;
2150 }
2151 }
2152 return ieee80211_fix_rate(ni, (struct ieee80211_rateset *) rs, flags);
2153}
2154
2155/*
2156 * Mark rates in a node's HT rate set as basic according
2157 * to the information in the supplied HT info ie.
2158 */
2159void
2160ieee80211_setup_basic_htrates(struct ieee80211_node *ni, const uint8_t *ie)
2161{
2162 const struct ieee80211_ie_htinfo *htinfo;
2163 struct ieee80211_htrateset *rs;
2164 int i, j;
2165
2166 if (ie[0] == IEEE80211_ELEMID_VENDOR)
2167 ie += 4;
2168 htinfo = (const struct ieee80211_ie_htinfo *) ie;
2169 rs = &ni->ni_htrates;
2170 if (rs->rs_nrates == 0) {
2171 IEEE80211_NOTE(ni->ni_vap,
2172 IEEE80211_MSG_XRATE | IEEE80211_MSG_11N, ni,
2173 "%s", "WARNING, empty HT rate set");
2174 return;
2175 }
2176 for (i = 0; i < IEEE80211_HTRATE_MAXSIZE; i++) {
2177 if (isclr(htinfo->hi_basicmcsset, i))
2178 continue;
2179 for (j = 0; j < rs->rs_nrates; j++)
2180 if ((rs->rs_rates[j] & IEEE80211_RATE_VAL) == i)
2181 rs->rs_rates[j] |= IEEE80211_RATE_BASIC;
2182 }
2183}
2184
2185static void
2186ampdu_tx_setup(struct ieee80211_tx_ampdu *tap)
2187{
2188 callout_init(&tap->txa_timer, 1);
2189 tap->txa_flags |= IEEE80211_AGGR_SETUP;
2190 tap->txa_lastsample = ticks;
2191}
2192
2193static void
2194ampdu_tx_stop(struct ieee80211_tx_ampdu *tap)
2195{
2196 struct ieee80211_node *ni = tap->txa_ni;
2197 struct ieee80211com *ic = ni->ni_ic;
2198
2199 IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
2200 tap->txa_ni,
2201 "%s: called",
2202 __func__);
2203
2204 KASSERT(tap->txa_flags & IEEE80211_AGGR_SETUP,
2205 ("txa_flags 0x%x tid %d ac %d", tap->txa_flags, tap->txa_tid,
2206 TID_TO_WME_AC(tap->txa_tid)));
2207
2208 /*
2209 * Stop BA stream if setup so driver has a chance
2210 * to reclaim any resources it might have allocated.
2211 */
2212 ic->ic_addba_stop(ni, tap);
2213 /*
2214 * Stop any pending BAR transmit.
2215 */
2216 bar_stop_timer(tap);
2217
2218 /*
2219 * Reset packet estimate.
2220 */
2221 ieee80211_txampdu_init_pps(tap);
2222
2223 /* NB: clearing NAK means we may re-send ADDBA */
2224 tap->txa_flags &= ~(IEEE80211_AGGR_SETUP | IEEE80211_AGGR_NAK);
2225}
2226
2227/*
2228 * ADDBA response timeout.
2229 *
2230 * If software aggregation and per-TID queue management was done here,
2231 * that queue would be unpaused after the ADDBA timeout occurs.
2232 */
2233static void
2234addba_timeout(void *arg)
2235{
2236 struct ieee80211_tx_ampdu *tap = arg;
2237 struct ieee80211_node *ni = tap->txa_ni;
2238 struct ieee80211com *ic = ni->ni_ic;
2239
2240 /* XXX ? */
2241 tap->txa_flags &= ~IEEE80211_AGGR_XCHGPEND;
2242 tap->txa_attempts++;
2243 ic->ic_addba_response_timeout(ni, tap);
2244}
2245
2246static void
2247addba_start_timeout(struct ieee80211_tx_ampdu *tap)
2248{
2249 /* XXX use CALLOUT_PENDING instead? */
2250 callout_reset(&tap->txa_timer, ieee80211_addba_timeout,
2251 addba_timeout, tap);
2252 tap->txa_flags |= IEEE80211_AGGR_XCHGPEND;
2253 tap->txa_nextrequest = ticks + ieee80211_addba_timeout;
2254}
2255
2256static void
2257addba_stop_timeout(struct ieee80211_tx_ampdu *tap)
2258{
2259 /* XXX use CALLOUT_PENDING instead? */
2260 if (tap->txa_flags & IEEE80211_AGGR_XCHGPEND) {
2261 callout_stop(&tap->txa_timer);
2262 tap->txa_flags &= ~IEEE80211_AGGR_XCHGPEND;
2263 }
2264}
2265
2266static void
2267null_addba_response_timeout(struct ieee80211_node *ni,
2268 struct ieee80211_tx_ampdu *tap)
2269{
2270}
2271
2272/*
2273 * Default method for requesting A-MPDU tx aggregation.
2274 * We setup the specified state block and start a timer
2275 * to wait for an ADDBA response frame.
2276 */
2277static int
2278ieee80211_addba_request(struct ieee80211_node *ni,
2279 struct ieee80211_tx_ampdu *tap,
2280 int dialogtoken, int baparamset, int batimeout)
2281{
2282 int bufsiz;
2283
2284 /* XXX locking */
2285 tap->txa_token = dialogtoken;
2286 tap->txa_flags |= IEEE80211_AGGR_IMMEDIATE;
2287 bufsiz = _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_BUFSIZ);
2288 tap->txa_wnd = (bufsiz == 0) ?
2289 IEEE80211_AGGR_BAWMAX : min(bufsiz, IEEE80211_AGGR_BAWMAX);
2290 addba_start_timeout(tap);
2291 return 1;
2292}
2293
2294/*
2295 * Called by drivers that wish to request an ADDBA session be
2296 * setup. This brings it up and starts the request timer.
2297 */
2298int
2299ieee80211_ampdu_tx_request_ext(struct ieee80211_node *ni, int tid)
2300{
2301 struct ieee80211_tx_ampdu *tap;
2302
2303 if (tid < 0 || tid > 15)
2304 return (0);
2305 tap = &ni->ni_tx_ampdu[tid];
2306
2307 /* XXX locking */
2308 if ((tap->txa_flags & IEEE80211_AGGR_SETUP) == 0) {
2309 /* do deferred setup of state */
2310 ampdu_tx_setup(tap);
2311 }
2312 /* XXX hack for not doing proper locking */
2313 tap->txa_flags &= ~IEEE80211_AGGR_NAK;
2314 addba_start_timeout(tap);
2315 return (1);
2316}
2317
2318/*
2319 * Called by drivers that have marked a session as active.
2320 */
2321int
2322ieee80211_ampdu_tx_request_active_ext(struct ieee80211_node *ni, int tid,
2323 int status)
2324{
2325 struct ieee80211_tx_ampdu *tap;
2326
2327 if (tid < 0 || tid > 15)
2328 return (0);
2329 tap = &ni->ni_tx_ampdu[tid];
2330
2331 /* XXX locking */
2332 addba_stop_timeout(tap);
2333 if (status == 1) {
2334 tap->txa_flags |= IEEE80211_AGGR_RUNNING;
2335 tap->txa_attempts = 0;
2336 } else {
2337 /* mark tid so we don't try again */
2338 tap->txa_flags |= IEEE80211_AGGR_NAK;
2339 }
2340 return (1);
2341}
2342
2343/*
2344 * Default method for processing an A-MPDU tx aggregation
2345 * response. We shutdown any pending timer and update the
2346 * state block according to the reply.
2347 */
2348static int
2349ieee80211_addba_response(struct ieee80211_node *ni,
2350 struct ieee80211_tx_ampdu *tap,
2351 int status, int baparamset, int batimeout)
2352{
2353 struct ieee80211vap *vap = ni->ni_vap;
2354 int bufsiz;
2355
2356 /* XXX locking */
2357 addba_stop_timeout(tap);
2358 if (status == IEEE80211_STATUS_SUCCESS) {
2359 bufsiz = _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_BUFSIZ);
2360 /* XXX override our request? */
2361 tap->txa_wnd = (bufsiz == 0) ?
2362 IEEE80211_AGGR_BAWMAX : min(bufsiz, IEEE80211_AGGR_BAWMAX);
2363#ifdef __notyet__
2364 tid = _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_TID);
2365#endif
2366 tap->txa_flags |= IEEE80211_AGGR_RUNNING;
2367 tap->txa_attempts = 0;
2368 /* TODO: this should be a vap flag */
2369 if ((vap->iv_htcaps & IEEE80211_HTC_TX_AMSDU_AMPDU) &&
2370 (ni->ni_flags & IEEE80211_NODE_AMSDU_TX) &&
2371 (_IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_AMSDU)))
2372 tap->txa_flags |= IEEE80211_AGGR_AMSDU;
2373 else
2374 tap->txa_flags &= ~IEEE80211_AGGR_AMSDU;
2375 } else {
2376 /* mark tid so we don't try again */
2377 tap->txa_flags |= IEEE80211_AGGR_NAK;
2378 }
2379 return 1;
2380}
2381
2382/*
2383 * Default method for stopping A-MPDU tx aggregation.
2384 * Any timer is cleared and we drain any pending frames.
2385 */
2386static void
2387ieee80211_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap)
2388{
2389 /* XXX locking */
2390 addba_stop_timeout(tap);
2391 if (tap->txa_flags & IEEE80211_AGGR_RUNNING) {
2392 /* XXX clear aggregation queue */
2393 tap->txa_flags &= ~(IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_AMSDU);
2394 }
2395 tap->txa_attempts = 0;
2396}
2397
2398/*
2399 * Process a received action frame using the default aggregation
2400 * policy. We intercept ADDBA-related frames and use them to
2401 * update our aggregation state. All other frames are passed up
2402 * for processing by ieee80211_recv_action.
2403 */
2404static int
2405ht_recv_action_ba_addba_request(struct ieee80211_node *ni,
2406 const struct ieee80211_frame *wh,
2407 const uint8_t *frm, const uint8_t *efrm)
2408{
2409 struct ieee80211com *ic = ni->ni_ic;
2410 struct ieee80211vap *vap = ni->ni_vap;
2411 struct ieee80211_rx_ampdu *rap;
2412 uint8_t dialogtoken;
2413 uint16_t baparamset, batimeout, baseqctl;
2414 uint16_t args[5];
2415 int tid;
2416
2417 dialogtoken = frm[2];
2418 baparamset = le16dec(frm+3);
2419 batimeout = le16dec(frm+5);
2420 baseqctl = le16dec(frm+7);
2421
2422 tid = _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_TID);
2423
2424 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
2425 "recv ADDBA request: dialogtoken %u baparamset 0x%x "
2426 "(tid %d bufsiz %d) batimeout %d baseqctl %d:%d amsdu %d",
2427 dialogtoken, baparamset,
2428 tid, _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_BUFSIZ),
2429 batimeout,
2430 _IEEE80211_MASKSHIFT(baseqctl, IEEE80211_BASEQ_START),
2431 _IEEE80211_MASKSHIFT(baseqctl, IEEE80211_BASEQ_FRAG),
2432 _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_AMSDU));
2433
2434 rap = &ni->ni_rx_ampdu[tid];
2435
2436 /* Send ADDBA response */
2437 args[0] = dialogtoken;
2438 /*
2439 * NB: We ack only if the sta associated with HT and
2440 * the ap is configured to do AMPDU rx (the latter
2441 * violates the 11n spec and is mostly for testing).
2442 */
2443 if ((ni->ni_flags & IEEE80211_NODE_AMPDU_RX) &&
2444 (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)) {
2445 /* XXX TODO: handle ampdu_rx_start failure */
2446 ic->ic_ampdu_rx_start(ni, rap,
2447 baparamset, batimeout, baseqctl);
2448
2449 args[1] = IEEE80211_STATUS_SUCCESS;
2450 } else {
2451 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
2452 ni, "reject ADDBA request: %s",
2453 ni->ni_flags & IEEE80211_NODE_AMPDU_RX ?
2454 "administratively disabled" :
2455 "not negotiated for station");
2456 vap->iv_stats.is_addba_reject++;
2457 args[1] = IEEE80211_STATUS_UNSPECIFIED;
2458 }
2459 /* XXX honor rap flags? */
2460 args[2] = IEEE80211_BAPS_POLICY_IMMEDIATE
2461 | _IEEE80211_SHIFTMASK(tid, IEEE80211_BAPS_TID)
2462 | _IEEE80211_SHIFTMASK(rap->rxa_wnd, IEEE80211_BAPS_BUFSIZ)
2463 ;
2464
2465 /*
2466 * TODO: we're out of iv_flags_ht fields; once
2467 * this is extended we should make this configurable.
2468 */
2469 if ((baparamset & IEEE80211_BAPS_AMSDU) &&
2470 (ni->ni_flags & IEEE80211_NODE_AMSDU_RX) &&
2471 (vap->iv_htcaps & IEEE80211_HTC_RX_AMSDU_AMPDU))
2472 args[2] |= IEEE80211_BAPS_AMSDU;
2473
2474 args[3] = 0;
2475 args[4] = 0;
2476 ic->ic_send_action(ni, IEEE80211_ACTION_CAT_BA,
2477 IEEE80211_ACTION_BA_ADDBA_RESPONSE, args);
2478 return 0;
2479}
2480
2481static int
2482ht_recv_action_ba_addba_response(struct ieee80211_node *ni,
2483 const struct ieee80211_frame *wh,
2484 const uint8_t *frm, const uint8_t *efrm)
2485{
2486 struct ieee80211com *ic = ni->ni_ic;
2487 struct ieee80211vap *vap = ni->ni_vap;
2488 struct ieee80211_tx_ampdu *tap;
2489 uint8_t dialogtoken, policy;
2490 uint16_t baparamset, batimeout, code;
2491 int tid;
2492#ifdef IEEE80211_DEBUG
2493 int amsdu, bufsiz;
2494#endif
2495
2496 dialogtoken = frm[2];
2497 code = le16dec(frm+3);
2498 baparamset = le16dec(frm+5);
2499 tid = _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_TID);
2500#ifdef IEEE80211_DEBUG
2501 bufsiz = _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_BUFSIZ);
2502 amsdu = !! _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_AMSDU);
2503#endif
2504 policy = _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_POLICY);
2505 batimeout = le16dec(frm+7);
2506
2507 tap = &ni->ni_tx_ampdu[tid];
2508 if ((tap->txa_flags & IEEE80211_AGGR_XCHGPEND) == 0) {
2509 IEEE80211_DISCARD_MAC(vap,
2510 IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
2511 ni->ni_macaddr, "ADDBA response",
2512 "no pending ADDBA, tid %d dialogtoken %u "
2513 "code %d", tid, dialogtoken, code);
2514 vap->iv_stats.is_addba_norequest++;
2515 return 0;
2516 }
2517 if (dialogtoken != tap->txa_token) {
2518 IEEE80211_DISCARD_MAC(vap,
2519 IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
2520 ni->ni_macaddr, "ADDBA response",
2521 "dialogtoken mismatch: waiting for %d, "
2522 "received %d, tid %d code %d",
2523 tap->txa_token, dialogtoken, tid, code);
2524 vap->iv_stats.is_addba_badtoken++;
2525 return 0;
2526 }
2527 /* NB: assumes IEEE80211_AGGR_IMMEDIATE is 1 */
2528 if (policy != (tap->txa_flags & IEEE80211_AGGR_IMMEDIATE)) {
2529 IEEE80211_DISCARD_MAC(vap,
2530 IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
2531 ni->ni_macaddr, "ADDBA response",
2532 "policy mismatch: expecting %s, "
2533 "received %s, tid %d code %d",
2534 tap->txa_flags & IEEE80211_AGGR_IMMEDIATE,
2535 policy, tid, code);
2536 vap->iv_stats.is_addba_badpolicy++;
2537 return 0;
2538 }
2539#if 0
2540 /* XXX we take MIN in ieee80211_addba_response */
2541 if (bufsiz > IEEE80211_AGGR_BAWMAX) {
2542 IEEE80211_DISCARD_MAC(vap,
2543 IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
2544 ni->ni_macaddr, "ADDBA response",
2545 "BA window too large: max %d, "
2546 "received %d, tid %d code %d",
2547 bufsiz, IEEE80211_AGGR_BAWMAX, tid, code);
2548 vap->iv_stats.is_addba_badbawinsize++;
2549 return 0;
2550 }
2551#endif
2552
2553 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
2554 "recv ADDBA response: dialogtoken %u code %d "
2555 "baparamset 0x%x (tid %d bufsiz %d amsdu %d) batimeout %d",
2556 dialogtoken, code, baparamset, tid,
2557 bufsiz,
2558 amsdu,
2559 batimeout);
2560 ic->ic_addba_response(ni, tap, code, baparamset, batimeout);
2561 return 0;
2562}
2563
2564static int
2565ht_recv_action_ba_delba(struct ieee80211_node *ni,
2566 const struct ieee80211_frame *wh,
2567 const uint8_t *frm, const uint8_t *efrm)
2568{
2569 struct ieee80211com *ic = ni->ni_ic;
2570 struct ieee80211_rx_ampdu *rap;
2571 struct ieee80211_tx_ampdu *tap;
2572 uint16_t baparamset;
2573#ifdef IEEE80211_DEBUG
2574 uint16_t code;
2575#endif
2576 int tid;
2577
2578 baparamset = le16dec(frm+2);
2579#ifdef IEEE80211_DEBUG
2580 code = le16dec(frm+4);
2581#endif
2582
2583 tid = _IEEE80211_MASKSHIFT(baparamset, IEEE80211_DELBAPS_TID);
2584
2585 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
2586 "recv DELBA: baparamset 0x%x (tid %d initiator %d) "
2587 "code %d", baparamset, tid,
2588 _IEEE80211_MASKSHIFT(baparamset, IEEE80211_DELBAPS_INIT), code);
2589
2590 if ((baparamset & IEEE80211_DELBAPS_INIT) == 0) {
2591 tap = &ni->ni_tx_ampdu[tid];
2592 ic->ic_addba_stop(ni, tap);
2593 } else {
2594 rap = &ni->ni_rx_ampdu[tid];
2595 ic->ic_ampdu_rx_stop(ni, rap);
2596 }
2597 return 0;
2598}
2599
2600static int
2601ht_recv_action_ht_txchwidth(struct ieee80211_node *ni,
2602 const struct ieee80211_frame *wh,
2603 const uint8_t *frm, const uint8_t *efrm)
2604{
2605 int chw;
2606
2607 chw = (frm[2] == IEEE80211_A_HT_TXCHWIDTH_2040) ? 40 : 20;
2608
2609 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
2610 "%s: HT txchwidth, width %d%s",
2611 __func__, chw, ni->ni_chw != chw ? "*" : "");
2612 if (chw != ni->ni_chw) {
2613 /* XXX does this need to change the ht40 station count? */
2614 ni->ni_chw = chw;
2615 /* XXX notify on change */
2616 }
2617 return 0;
2618}
2619
2620static int
2621ht_recv_action_ht_mimopwrsave(struct ieee80211_node *ni,
2622 const struct ieee80211_frame *wh,
2623 const uint8_t *frm, const uint8_t *efrm)
2624{
2625 const struct ieee80211_action_ht_mimopowersave *mps =
2626 (const struct ieee80211_action_ht_mimopowersave *) frm;
2627
2628 /* XXX check iv_htcaps */
2629 if (mps->am_control & IEEE80211_A_HT_MIMOPWRSAVE_ENA)
2630 ni->ni_flags |= IEEE80211_NODE_MIMO_PS;
2631 else
2632 ni->ni_flags &= ~IEEE80211_NODE_MIMO_PS;
2633 if (mps->am_control & IEEE80211_A_HT_MIMOPWRSAVE_MODE)
2634 ni->ni_flags |= IEEE80211_NODE_MIMO_RTS;
2635 else
2636 ni->ni_flags &= ~IEEE80211_NODE_MIMO_RTS;
2637 /* XXX notify on change */
2638 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
2639 "%s: HT MIMO PS (%s%s)", __func__,
2640 (ni->ni_flags & IEEE80211_NODE_MIMO_PS) ? "on" : "off",
2641 (ni->ni_flags & IEEE80211_NODE_MIMO_RTS) ? "+rts" : ""
2642 );
2643 return 0;
2644}
2645
2646/*
2647 * Transmit processing.
2648 */
2649
2650/*
2651 * Check if A-MPDU should be requested/enabled for a stream.
2652 * We require a traffic rate above a per-AC threshold and we
2653 * also handle backoff from previous failed attempts.
2654 *
2655 * Drivers may override this method to bring in information
2656 * such as link state conditions in making the decision.
2657 */
2658static int
2659ieee80211_ampdu_enable(struct ieee80211_node *ni,
2660 struct ieee80211_tx_ampdu *tap)
2661{
2662 struct ieee80211vap *vap = ni->ni_vap;
2663
2664 if (tap->txa_avgpps <
2665 vap->iv_ampdu_mintraffic[TID_TO_WME_AC(tap->txa_tid)])
2666 return 0;
2667 /* XXX check rssi? */
2668 if (tap->txa_attempts >= ieee80211_addba_maxtries &&
2669 ieee80211_time_after(ticks, tap->txa_nextrequest)) {
2670 /*
2671 * Don't retry too often; txa_nextrequest is set
2672 * to the minimum interval we'll retry after
2673 * ieee80211_addba_maxtries failed attempts are made.
2674 */
2675 return 0;
2676 }
2677 IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni,
2678 "enable AMPDU on tid %d (%s), avgpps %d pkts %d attempt %d",
2679 tap->txa_tid, ieee80211_wme_acnames[TID_TO_WME_AC(tap->txa_tid)],
2680 tap->txa_avgpps, tap->txa_pkts, tap->txa_attempts);
2681 return 1;
2682}
2683
2684/*
2685 * Request A-MPDU tx aggregation. Setup local state and
2686 * issue an ADDBA request. BA use will only happen after
2687 * the other end replies with ADDBA response.
2688 */
2689int
2690ieee80211_ampdu_request(struct ieee80211_node *ni,
2691 struct ieee80211_tx_ampdu *tap)
2692{
2693 struct ieee80211com *ic = ni->ni_ic;
2694 uint16_t args[5];
2695 int tid, dialogtoken;
2696 static int tokens = 0; /* XXX */
2697
2698 /* XXX locking */
2699 if ((tap->txa_flags & IEEE80211_AGGR_SETUP) == 0) {
2700 /* do deferred setup of state */
2701 ampdu_tx_setup(tap);
2702 }
2703 /* XXX hack for not doing proper locking */
2704 tap->txa_flags &= ~IEEE80211_AGGR_NAK;
2705
2706 dialogtoken = (tokens+1) % 63; /* XXX */
2707 tid = tap->txa_tid;
2708
2709 /*
2710 * XXX TODO: This is racy with any other parallel TX going on. :(
2711 */
2712 tap->txa_start = ni->ni_txseqs[tid];
2713
2714 args[0] = dialogtoken;
2715 args[1] = 0; /* NB: status code not used */
2716 args[2] = IEEE80211_BAPS_POLICY_IMMEDIATE
2717 | _IEEE80211_SHIFTMASK(tid, IEEE80211_BAPS_TID)
2718 | _IEEE80211_SHIFTMASK(IEEE80211_AGGR_BAWMAX,
2719 IEEE80211_BAPS_BUFSIZ)
2720 ;
2721
2722 /* XXX TODO: this should be a flag, not iv_htcaps */
2723 if ((ni->ni_flags & IEEE80211_NODE_AMSDU_TX) &&
2724 (ni->ni_vap->iv_htcaps & IEEE80211_HTC_TX_AMSDU_AMPDU))
2725 args[2] |= IEEE80211_BAPS_AMSDU;
2726
2727 args[3] = 0; /* batimeout */
2728 /* NB: do first so there's no race against reply */
2729 if (!ic->ic_addba_request(ni, tap, dialogtoken, args[2], args[3])) {
2730 /* unable to setup state, don't make request */
2731 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
2732 ni, "%s: could not setup BA stream for TID %d AC %d",
2733 __func__, tap->txa_tid, TID_TO_WME_AC(tap->txa_tid));
2734 /* defer next try so we don't slam the driver with requests */
2735 tap->txa_attempts = ieee80211_addba_maxtries;
2736 /* NB: check in case driver wants to override */
2737 if (tap->txa_nextrequest <= ticks)
2738 tap->txa_nextrequest = ticks + ieee80211_addba_backoff;
2739 return 0;
2740 }
2741 tokens = dialogtoken; /* allocate token */
2742 /* NB: after calling ic_addba_request so driver can set txa_start */
2743 args[4] = _IEEE80211_SHIFTMASK(tap->txa_start, IEEE80211_BASEQ_START)
2744 | _IEEE80211_SHIFTMASK(0, IEEE80211_BASEQ_FRAG)
2745 ;
2746 return ic->ic_send_action(ni, IEEE80211_ACTION_CAT_BA,
2747 IEEE80211_ACTION_BA_ADDBA_REQUEST, args);
2748}
2749
2750/*
2751 * Terminate an AMPDU tx stream. State is reclaimed
2752 * and the peer notified with a DelBA Action frame.
2753 */
2754void
2755ieee80211_ampdu_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap,
2756 int reason)
2757{
2758 struct ieee80211com *ic = ni->ni_ic;
2759 struct ieee80211vap *vap = ni->ni_vap;
2760 uint16_t args[4];
2761
2762 /* XXX locking */
2763 tap->txa_flags &= ~IEEE80211_AGGR_BARPEND;
2764 if (IEEE80211_AMPDU_RUNNING(tap)) {
2765 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
2766 ni, "%s: stop BA stream for TID %d (reason: %d (%s))",
2767 __func__, tap->txa_tid, reason,
2768 ieee80211_reason_to_string(reason));
2769 vap->iv_stats.is_ampdu_stop++;
2770
2771 ic->ic_addba_stop(ni, tap);
2772 args[0] = tap->txa_tid;
2773 args[1] = IEEE80211_DELBAPS_INIT;
2774 args[2] = reason; /* XXX reason code */
2775 ic->ic_send_action(ni, IEEE80211_ACTION_CAT_BA,
2776 IEEE80211_ACTION_BA_DELBA, args);
2777 } else {
2778 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N,
2779 ni, "%s: BA stream for TID %d not running "
2780 "(reason: %d (%s))", __func__, tap->txa_tid, reason,
2781 ieee80211_reason_to_string(reason));
2782 vap->iv_stats.is_ampdu_stop_failed++;
2783 }
2784}
2785
2786/* XXX */
2787static void bar_start_timer(struct ieee80211_tx_ampdu *tap);
2788
2789static void
2790bar_timeout(void *arg)
2791{
2792 struct ieee80211_tx_ampdu *tap = arg;
2793 struct ieee80211_node *ni = tap->txa_ni;
2794
2795 KASSERT((tap->txa_flags & IEEE80211_AGGR_XCHGPEND) == 0,
2796 ("bar/addba collision, flags 0x%x", tap->txa_flags));
2797
2798 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
2799 ni, "%s: tid %u flags 0x%x attempts %d", __func__,
2800 tap->txa_tid, tap->txa_flags, tap->txa_attempts);
2801
2802 /* guard against race with bar_tx_complete */
2803 if ((tap->txa_flags & IEEE80211_AGGR_BARPEND) == 0)
2804 return;
2805 /* XXX ? */
2806 if (tap->txa_attempts >= ieee80211_bar_maxtries) {
2807 struct ieee80211com *ic = ni->ni_ic;
2808
2809 ni->ni_vap->iv_stats.is_ampdu_bar_tx_fail++;
2810 /*
2811 * If (at least) the last BAR TX timeout was due to
2812 * an ieee80211_send_bar() failures, then we need
2813 * to make sure we notify the driver that a BAR
2814 * TX did occur and fail. This gives the driver
2815 * a chance to undo any queue pause that may
2816 * have occurred.
2817 */
2818 ic->ic_bar_response(ni, tap, 1);
2819 ieee80211_ampdu_stop(ni, tap, IEEE80211_REASON_TIMEOUT);
2820 } else {
2821 ni->ni_vap->iv_stats.is_ampdu_bar_tx_retry++;
2822 if (ieee80211_send_bar(ni, tap, tap->txa_seqpending) != 0) {
2823 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
2824 ni, "%s: failed to TX, starting timer\n",
2825 __func__);
2826 /*
2827 * If ieee80211_send_bar() fails here, the
2828 * timer may have stopped and/or the pending
2829 * flag may be clear. Because of this,
2830 * fake the BARPEND and reset the timer.
2831 * A retransmission attempt will then occur
2832 * during the next timeout.
2833 */
2834 /* XXX locking */
2835 tap->txa_flags |= IEEE80211_AGGR_BARPEND;
2836 bar_start_timer(tap);
2837 }
2838 }
2839}
2840
2841static void
2842bar_start_timer(struct ieee80211_tx_ampdu *tap)
2843{
2844 IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
2845 tap->txa_ni,
2846 "%s: called",
2847 __func__);
2848 callout_reset(&tap->txa_timer, ieee80211_bar_timeout, bar_timeout, tap);
2849}
2850
2851static void
2852bar_stop_timer(struct ieee80211_tx_ampdu *tap)
2853{
2854 IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
2855 tap->txa_ni,
2856 "%s: called",
2857 __func__);
2858 callout_stop(&tap->txa_timer);
2859}
2860
2861static void
2862bar_tx_complete(struct ieee80211_node *ni, void *arg, int status)
2863{
2864 struct ieee80211_tx_ampdu *tap = arg;
2865
2866 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
2867 ni, "%s: tid %u flags 0x%x pending %d status %d",
2868 __func__, tap->txa_tid, tap->txa_flags,
2869 callout_pending(&tap->txa_timer), status);
2870
2871 ni->ni_vap->iv_stats.is_ampdu_bar_tx++;
2872 /* XXX locking */
2873 if ((tap->txa_flags & IEEE80211_AGGR_BARPEND) &&
2874 callout_pending(&tap->txa_timer)) {
2875 struct ieee80211com *ic = ni->ni_ic;
2876
2877 if (status == 0) /* ACK'd */
2878 bar_stop_timer(tap);
2879 ic->ic_bar_response(ni, tap, status);
2880 /* NB: just let timer expire so we pace requests */
2881 }
2882}
2883
2884static void
2885ieee80211_bar_response(struct ieee80211_node *ni,
2886 struct ieee80211_tx_ampdu *tap, int status)
2887{
2888
2889 IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
2890 tap->txa_ni,
2891 "%s: called",
2892 __func__);
2893 if (status == 0) { /* got ACK */
2894 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N,
2895 ni, "BAR moves BA win <%u:%u> (%u frames) txseq %u tid %u",
2896 tap->txa_start,
2897 IEEE80211_SEQ_ADD(tap->txa_start, tap->txa_wnd-1),
2898 tap->txa_qframes, tap->txa_seqpending,
2899 tap->txa_tid);
2900
2901 /* NB: timer already stopped in bar_tx_complete */
2902 tap->txa_start = tap->txa_seqpending;
2903 tap->txa_flags &= ~IEEE80211_AGGR_BARPEND;
2904 }
2905}
2906
2907/*
2908 * Transmit a BAR frame to the specified node. The
2909 * BAR contents are drawn from the supplied aggregation
2910 * state associated with the node.
2911 *
2912 * NB: we only handle immediate ACK w/ compressed bitmap.
2913 */
2914int
2915ieee80211_send_bar(struct ieee80211_node *ni,
2916 struct ieee80211_tx_ampdu *tap, ieee80211_seq seq)
2917{
2918#define senderr(_x, _v) do { vap->iv_stats._v++; ret = _x; goto bad; } while (0)
2919 struct ieee80211vap *vap = ni->ni_vap;
2920 struct ieee80211com *ic = ni->ni_ic;
2921 struct ieee80211_frame_bar *bar;
2922 struct mbuf *m;
2923 uint16_t barctl, barseqctl;
2924 uint8_t *frm;
2925 int tid, ret;
2926
2927 IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
2928 tap->txa_ni,
2929 "%s: called",
2930 __func__);
2931
2932 if ((tap->txa_flags & IEEE80211_AGGR_RUNNING) == 0) {
2933 /* no ADDBA response, should not happen */
2934 /* XXX stat+msg */
2935 return EINVAL;
2936 }
2937 /* XXX locking */
2938 bar_stop_timer(tap);
2939
2940 ieee80211_ref_node(ni);
2941
2942 m = ieee80211_getmgtframe(&frm, ic->ic_headroom, sizeof(*bar));
2943 if (m == NULL)
2944 senderr(ENOMEM, is_tx_nobuf);
2945
2946 if (!ieee80211_add_callback(m, bar_tx_complete, tap)) {
2947 m_freem(m);
2948 senderr(ENOMEM, is_tx_nobuf); /* XXX */
2949 /* NOTREACHED */
2950 }
2951
2952 bar = mtod(m, struct ieee80211_frame_bar *);
2953 bar->i_fc[0] = IEEE80211_FC0_VERSION_0 |
2954 IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR;
2955 bar->i_fc[1] = 0;
2956 IEEE80211_ADDR_COPY(bar->i_ra, ni->ni_macaddr);
2957 IEEE80211_ADDR_COPY(bar->i_ta, vap->iv_myaddr);
2958
2959 tid = tap->txa_tid;
2960 barctl = (tap->txa_flags & IEEE80211_AGGR_IMMEDIATE ?
2961 0 : IEEE80211_BAR_NOACK)
2962 | IEEE80211_BAR_COMP
2963 | _IEEE80211_SHIFTMASK(tid, IEEE80211_BAR_TID)
2964 ;
2965 barseqctl = _IEEE80211_SHIFTMASK(seq, IEEE80211_BAR_SEQ_START);
2966 /* NB: known to have proper alignment */
2967 bar->i_ctl = htole16(barctl);
2968 bar->i_seq = htole16(barseqctl);
2969 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame_bar);
2970
2971 M_WME_SETAC(m, WME_AC_VO);
2972
2973 IEEE80211_NODE_STAT(ni, tx_mgmt); /* XXX tx_ctl? */
2974
2975 /* XXX locking */
2976 /* init/bump attempts counter */
2977 if ((tap->txa_flags & IEEE80211_AGGR_BARPEND) == 0)
2978 tap->txa_attempts = 1;
2979 else
2980 tap->txa_attempts++;
2981 tap->txa_seqpending = seq;
2982 tap->txa_flags |= IEEE80211_AGGR_BARPEND;
2983
2984 IEEE80211_NOTE(vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_11N,
2985 ni, "send BAR: tid %u ctl 0x%x start %u (attempt %d)",
2986 tid, barctl, seq, tap->txa_attempts);
2987
2988 /*
2989 * ic_raw_xmit will free the node reference
2990 * regardless of queue/TX success or failure.
2991 */
2992 IEEE80211_TX_LOCK(ic);
2993 ret = ieee80211_raw_output(vap, ni, m, NULL);
2994 IEEE80211_TX_UNLOCK(ic);
2995 if (ret != 0) {
2996 IEEE80211_NOTE(vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_11N,
2997 ni, "send BAR: failed: (ret = %d)\n",
2998 ret);
2999 /* xmit failed, clear state flag */
3000 tap->txa_flags &= ~IEEE80211_AGGR_BARPEND;
3001 vap->iv_stats.is_ampdu_bar_tx_fail++;
3002 return ret;
3003 }
3004 /* XXX hack against tx complete happening before timer is started */
3005 if (tap->txa_flags & IEEE80211_AGGR_BARPEND)
3006 bar_start_timer(tap);
3007 return 0;
3008bad:
3009 IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N,
3010 tap->txa_ni,
3011 "%s: bad! ret=%d",
3012 __func__, ret);
3013 vap->iv_stats.is_ampdu_bar_tx_fail++;
3014 ieee80211_free_node(ni);
3015 return ret;
3016#undef senderr
3017}
3018
3019static int
3020ht_action_output(struct ieee80211_node *ni, struct mbuf *m)
3021{
3022 struct ieee80211_bpf_params params;
3023
3024 memset(&params, 0, sizeof(params));
3025 params.ibp_pri = WME_AC_VO;
3026 params.ibp_rate0 = ni->ni_txparms->mgmtrate;
3027 /* NB: we know all frames are unicast */
3028 params.ibp_try0 = ni->ni_txparms->maxretry;
3029 params.ibp_power = ni->ni_txpower;
3030 return ieee80211_mgmt_output(ni, m, IEEE80211_FC0_SUBTYPE_ACTION,
3031 &params);
3032}
3033
3034#define ADDSHORT(frm, v) do { \
3035 frm[0] = (v) & 0xff; \
3036 frm[1] = (v) >> 8; \
3037 frm += 2; \
3038} while (0)
3039
3040/*
3041 * Send an action management frame. The arguments are stuff
3042 * into a frame without inspection; the caller is assumed to
3043 * prepare them carefully (e.g. based on the aggregation state).
3044 */
3045static int
3046ht_send_action_ba_addba(struct ieee80211_node *ni,
3047 int category, int action, void *arg0)
3048{
3049 struct ieee80211vap *vap = ni->ni_vap;
3050 struct ieee80211com *ic = ni->ni_ic;
3051 uint16_t *args = arg0;
3052 struct mbuf *m;
3053 uint8_t *frm;
3054
3055 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
3056 "send ADDBA %s: dialogtoken %d status %d "
3057 "baparamset 0x%x (tid %d amsdu %d) batimeout 0x%x baseqctl 0x%x",
3058 (action == IEEE80211_ACTION_BA_ADDBA_REQUEST) ?
3059 "request" : "response", args[0], args[1], args[2],
3060 _IEEE80211_MASKSHIFT(args[2], IEEE80211_BAPS_TID),
3061 _IEEE80211_MASKSHIFT(args[2], IEEE80211_BAPS_AMSDU),
3062 args[3], args[4]);
3063
3064 IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
3065 "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
3066 ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
3067 ieee80211_ref_node(ni);
3068
3069 m = ieee80211_getmgtframe(&frm,
3070 ic->ic_headroom + sizeof(struct ieee80211_frame),
3071 sizeof(uint16_t) /* action+category */
3072 /* XXX may action payload */
3073 + sizeof(struct ieee80211_action_ba_addbaresponse)
3074 );
3075 if (m != NULL) {
3076 *frm++ = category;
3077 *frm++ = action;
3078 *frm++ = args[0]; /* dialog token */
3079 if (action == IEEE80211_ACTION_BA_ADDBA_RESPONSE)
3080 ADDSHORT(frm, args[1]); /* status code */
3081 ADDSHORT(frm, args[2]); /* baparamset */
3082 ADDSHORT(frm, args[3]); /* batimeout */
3083 if (action == IEEE80211_ACTION_BA_ADDBA_REQUEST)
3084 ADDSHORT(frm, args[4]); /* baseqctl */
3085 m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
3086 return ht_action_output(ni, m);
3087 } else {
3088 vap->iv_stats.is_tx_nobuf++;
3089 ieee80211_free_node(ni);
3090 return ENOMEM;
3091 }
3092}
3093
3094static int
3095ht_send_action_ba_delba(struct ieee80211_node *ni,
3096 int category, int action, void *arg0)
3097{
3098 struct ieee80211vap *vap = ni->ni_vap;
3099 struct ieee80211com *ic = ni->ni_ic;
3100 uint16_t *args = arg0;
3101 struct mbuf *m;
3102 uint16_t baparamset;
3103 uint8_t *frm;
3104
3105 baparamset = _IEEE80211_SHIFTMASK(args[0], IEEE80211_DELBAPS_TID)
3106 | args[1]
3107 ;
3108 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
3109 "send DELBA action: tid %d, initiator %d reason %d (%s)",
3110 args[0], args[1], args[2], ieee80211_reason_to_string(args[2]));
3111
3112 IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
3113 "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
3114 ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
3115 ieee80211_ref_node(ni);
3116
3117 m = ieee80211_getmgtframe(&frm,
3118 ic->ic_headroom + sizeof(struct ieee80211_frame),
3119 sizeof(uint16_t) /* action+category */
3120 /* XXX may action payload */
3121 + sizeof(struct ieee80211_action_ba_addbaresponse)
3122 );
3123 if (m != NULL) {
3124 *frm++ = category;
3125 *frm++ = action;
3126 ADDSHORT(frm, baparamset);
3127 ADDSHORT(frm, args[2]); /* reason code */
3128 m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
3129 return ht_action_output(ni, m);
3130 } else {
3131 vap->iv_stats.is_tx_nobuf++;
3132 ieee80211_free_node(ni);
3133 return ENOMEM;
3134 }
3135}
3136
3137static int
3138ht_send_action_ht_txchwidth(struct ieee80211_node *ni,
3139 int category, int action, void *arg0)
3140{
3141 struct ieee80211vap *vap = ni->ni_vap;
3142 struct ieee80211com *ic = ni->ni_ic;
3143 struct mbuf *m;
3144 uint8_t *frm;
3145
3146 IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni,
3147 "send HT txchwidth: width %d",
3148 IEEE80211_IS_CHAN_HT40(ni->ni_chan) ? 40 : 20);
3149
3150 IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
3151 "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__,
3152 ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1);
3153 ieee80211_ref_node(ni);
3154
3155 m = ieee80211_getmgtframe(&frm,
3156 ic->ic_headroom + sizeof(struct ieee80211_frame),
3157 sizeof(uint16_t) /* action+category */
3158 /* XXX may action payload */
3159 + sizeof(struct ieee80211_action_ba_addbaresponse)
3160 );
3161 if (m != NULL) {
3162 *frm++ = category;
3163 *frm++ = action;
3164 *frm++ = IEEE80211_IS_CHAN_HT40(ni->ni_chan) ?
3165 IEEE80211_A_HT_TXCHWIDTH_2040 :
3166 IEEE80211_A_HT_TXCHWIDTH_20;
3167 m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *);
3168 return ht_action_output(ni, m);
3169 } else {
3170 vap->iv_stats.is_tx_nobuf++;
3171 ieee80211_free_node(ni);
3172 return ENOMEM;
3173 }
3174}
3175#undef ADDSHORT
3176
3177/*
3178 * Construct the MCS bit mask for inclusion in an HT capabilities
3179 * information element.
3180 */
3181static void
3182ieee80211_set_mcsset(struct ieee80211com *ic, uint8_t *frm)
3183{
3184 int i;
3185 uint8_t txparams;
3186
3187 KASSERT((ic->ic_rxstream > 0 && ic->ic_rxstream <= 4),
3188 ("ic_rxstream %d out of range", ic->ic_rxstream));
3189 KASSERT((ic->ic_txstream > 0 && ic->ic_txstream <= 4),
3190 ("ic_txstream %d out of range", ic->ic_txstream));
3191
3192 for (i = 0; i < ic->ic_rxstream * 8; i++)
3193 setbit(frm, i);
3194 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) &&
3195 (ic->ic_htcaps & IEEE80211_HTC_RXMCS32))
3196 setbit(frm, 32);
3197 if (ic->ic_htcaps & IEEE80211_HTC_RXUNEQUAL) {
3198 if (ic->ic_rxstream >= 2) {
3199 for (i = 33; i <= 38; i++)
3200 setbit(frm, i);
3201 }
3202 if (ic->ic_rxstream >= 3) {
3203 for (i = 39; i <= 52; i++)
3204 setbit(frm, i);
3205 }
3206 if (ic->ic_txstream >= 4) {
3207 for (i = 53; i <= 76; i++)
3208 setbit(frm, i);
3209 }
3210 }
3211
3212 if (ic->ic_rxstream != ic->ic_txstream) {
3213 txparams = 0x1; /* TX MCS set defined */
3214 txparams |= 0x2; /* TX RX MCS not equal */
3215 txparams |= (ic->ic_txstream - 1) << 2; /* num TX streams */
3216 if (ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL)
3217 txparams |= 0x16; /* TX unequal modulation sup */
3218 } else
3219 txparams = 0;
3220 frm[12] = txparams;
3221}
3222
3223/*
3224 * Add body of an HTCAP information element.
3225 */
3226static uint8_t *
3227ieee80211_add_htcap_body(uint8_t *frm, struct ieee80211_node *ni)
3228{
3229#define ADDSHORT(frm, v) do { \
3230 frm[0] = (v) & 0xff; \
3231 frm[1] = (v) >> 8; \
3232 frm += 2; \
3233} while (0)
3234 struct ieee80211com *ic = ni->ni_ic;
3235 struct ieee80211vap *vap = ni->ni_vap;
3236 uint16_t caps, extcaps;
3237 int rxmax, density;
3238
3239 /* HT capabilities */
3240 caps = vap->iv_htcaps & 0xffff;
3241 /*
3242 * Note channel width depends on whether we are operating as
3243 * a sta or not. When operating as a sta we are generating
3244 * a request based on our desired configuration. Otherwise
3245 * we are operational and the channel attributes identify
3246 * how we've been setup (which might be different if a fixed
3247 * channel is specified).
3248 */
3249 if (vap->iv_opmode == IEEE80211_M_STA) {
3250 /* override 20/40 use based on config */
3251 if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
3252 caps |= IEEE80211_HTCAP_CHWIDTH40;
3253 else
3254 caps &= ~IEEE80211_HTCAP_CHWIDTH40;
3255
3256 /* Start by using the advertised settings */
3257 rxmax = _IEEE80211_MASKSHIFT(ni->ni_htparam,
3258 IEEE80211_HTCAP_MAXRXAMPDU);
3259 density = _IEEE80211_MASKSHIFT(ni->ni_htparam,
3260 IEEE80211_HTCAP_MPDUDENSITY);
3261
3262 IEEE80211_DPRINTF(vap, IEEE80211_MSG_11N,
3263 "%s: advertised rxmax=%d, density=%d, vap rxmax=%d, density=%d\n",
3264 __func__,
3265 rxmax,
3266 density,
3267 vap->iv_ampdu_rxmax,
3268 vap->iv_ampdu_density);
3269
3270 /* Cap at VAP rxmax */
3271 if (rxmax > vap->iv_ampdu_rxmax)
3272 rxmax = vap->iv_ampdu_rxmax;
3273
3274 /*
3275 * If the VAP ampdu density value greater, use that.
3276 *
3277 * (Larger density value == larger minimum gap between A-MPDU
3278 * subframes.)
3279 */
3280 if (vap->iv_ampdu_density > density)
3281 density = vap->iv_ampdu_density;
3282
3283 /*
3284 * NB: Hardware might support HT40 on some but not all
3285 * channels. We can't determine this earlier because only
3286 * after association the channel is upgraded to HT based
3287 * on the negotiated capabilities.
3288 */
3289 if (ni->ni_chan != IEEE80211_CHAN_ANYC &&
3290 findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT40U) == NULL &&
3291 findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT40D) == NULL)
3292 caps &= ~IEEE80211_HTCAP_CHWIDTH40;
3293 } else {
3294 /* override 20/40 use based on current channel */
3295 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan))
3296 caps |= IEEE80211_HTCAP_CHWIDTH40;
3297 else
3298 caps &= ~IEEE80211_HTCAP_CHWIDTH40;
3299
3300 /* XXX TODO should it start by using advertised settings? */
3301 rxmax = vap->iv_ampdu_rxmax;
3302 density = vap->iv_ampdu_density;
3303 }
3304
3305 /* adjust short GI based on channel and config */
3306 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20) == 0)
3307 caps &= ~IEEE80211_HTCAP_SHORTGI20;
3308 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40) == 0 ||
3309 (caps & IEEE80211_HTCAP_CHWIDTH40) == 0)
3310 caps &= ~IEEE80211_HTCAP_SHORTGI40;
3311
3312 /* adjust STBC based on receive capabilities */
3313 if ((vap->iv_flags_ht & IEEE80211_FHT_STBC_RX) == 0)
3314 caps &= ~IEEE80211_HTCAP_RXSTBC;
3315
3316 /* adjust LDPC based on receive capabilites */
3317 if ((vap->iv_flags_ht & IEEE80211_FHT_LDPC_RX) == 0)
3318 caps &= ~IEEE80211_HTCAP_LDPC;
3319
3320 ADDSHORT(frm, caps);
3321
3322 /* HT parameters */
3323 *frm = _IEEE80211_SHIFTMASK(rxmax, IEEE80211_HTCAP_MAXRXAMPDU)
3324 | _IEEE80211_SHIFTMASK(density, IEEE80211_HTCAP_MPDUDENSITY)
3325 ;
3326 frm++;
3327
3328 /* pre-zero remainder of ie */
3329 memset(frm, 0, sizeof(struct ieee80211_ie_htcap) -
3330 __offsetof(struct ieee80211_ie_htcap, hc_mcsset));
3331
3332 /* supported MCS set */
3333 /*
3334 * XXX: For sta mode the rate set should be restricted based
3335 * on the AP's capabilities, but ni_htrates isn't setup when
3336 * we're called to form an AssocReq frame so for now we're
3337 * restricted to the device capabilities.
3338 */
3339 ieee80211_set_mcsset(ni->ni_ic, frm);
3340
3341 frm += __offsetof(struct ieee80211_ie_htcap, hc_extcap) -
3342 __offsetof(struct ieee80211_ie_htcap, hc_mcsset);
3343
3344 /* HT extended capabilities */
3345 extcaps = vap->iv_htextcaps & 0xffff;
3346
3347 ADDSHORT(frm, extcaps);
3348
3349 frm += sizeof(struct ieee80211_ie_htcap) -
3350 __offsetof(struct ieee80211_ie_htcap, hc_txbf);
3351
3352 return frm;
3353#undef ADDSHORT
3354}
3355
3356/*
3357 * Add 802.11n HT capabilities information element
3358 */
3359uint8_t *
3360ieee80211_add_htcap(uint8_t *frm, struct ieee80211_node *ni)
3361{
3362 frm[0] = IEEE80211_ELEMID_HTCAP;
3363 frm[1] = sizeof(struct ieee80211_ie_htcap) - 2;
3364 return ieee80211_add_htcap_body(frm + 2, ni);
3365}
3366
3367/*
3368 * Non-associated probe request - add HT capabilities based on
3369 * the current channel configuration.
3370 */
3371static uint8_t *
3372ieee80211_add_htcap_body_ch(uint8_t *frm, struct ieee80211vap *vap,
3373 struct ieee80211_channel *c)
3374{
3375#define ADDSHORT(frm, v) do { \
3376 frm[0] = (v) & 0xff; \
3377 frm[1] = (v) >> 8; \
3378 frm += 2; \
3379} while (0)
3380 struct ieee80211com *ic = vap->iv_ic;
3381 uint16_t caps, extcaps;
3382 int rxmax, density;
3383
3384 /* HT capabilities */
3385 caps = vap->iv_htcaps & 0xffff;
3386
3387 /*
3388 * We don't use this in STA mode; only in IBSS mode.
3389 * So in IBSS mode we base our HTCAP flags on the
3390 * given channel.
3391 */
3392
3393 /* override 20/40 use based on current channel */
3394 if (IEEE80211_IS_CHAN_HT40(c))
3395 caps |= IEEE80211_HTCAP_CHWIDTH40;
3396 else
3397 caps &= ~IEEE80211_HTCAP_CHWIDTH40;
3398
3399 /* Use the currently configured values */
3400 rxmax = vap->iv_ampdu_rxmax;
3401 density = vap->iv_ampdu_density;
3402
3403 /* adjust short GI based on channel and config */
3404 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20) == 0)
3405 caps &= ~IEEE80211_HTCAP_SHORTGI20;
3406 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40) == 0 ||
3407 (caps & IEEE80211_HTCAP_CHWIDTH40) == 0)
3408 caps &= ~IEEE80211_HTCAP_SHORTGI40;
3409 ADDSHORT(frm, caps);
3410
3411 /* HT parameters */
3412 *frm = _IEEE80211_SHIFTMASK(rxmax, IEEE80211_HTCAP_MAXRXAMPDU)
3413 | _IEEE80211_SHIFTMASK(density, IEEE80211_HTCAP_MPDUDENSITY)
3414 ;
3415 frm++;
3416
3417 /* pre-zero remainder of ie */
3418 memset(frm, 0, sizeof(struct ieee80211_ie_htcap) -
3419 __offsetof(struct ieee80211_ie_htcap, hc_mcsset));
3420
3421 /* supported MCS set */
3422 /*
3423 * XXX: For sta mode the rate set should be restricted based
3424 * on the AP's capabilities, but ni_htrates isn't setup when
3425 * we're called to form an AssocReq frame so for now we're
3426 * restricted to the device capabilities.
3427 */
3428 ieee80211_set_mcsset(ic, frm);
3429
3430 frm += __offsetof(struct ieee80211_ie_htcap, hc_extcap) -
3431 __offsetof(struct ieee80211_ie_htcap, hc_mcsset);
3432
3433 /* HT extended capabilities */
3434 extcaps = vap->iv_htextcaps & 0xffff;
3435
3436 ADDSHORT(frm, extcaps);
3437
3438 frm += sizeof(struct ieee80211_ie_htcap) -
3439 __offsetof(struct ieee80211_ie_htcap, hc_txbf);
3440
3441 return frm;
3442#undef ADDSHORT
3443}
3444
3445/*
3446 * Add 802.11n HT capabilities information element
3447 */
3448uint8_t *
3449ieee80211_add_htcap_ch(uint8_t *frm, struct ieee80211vap *vap,
3450 struct ieee80211_channel *c)
3451{
3452 frm[0] = IEEE80211_ELEMID_HTCAP;
3453 frm[1] = sizeof(struct ieee80211_ie_htcap) - 2;
3454 return ieee80211_add_htcap_body_ch(frm + 2, vap, c);
3455}
3456
3457/*
3458 * Add Broadcom OUI wrapped standard HTCAP ie; this is
3459 * used for compatibility w/ pre-draft implementations.
3460 */
3461uint8_t *
3462ieee80211_add_htcap_vendor(uint8_t *frm, struct ieee80211_node *ni)
3463{
3464 frm[0] = IEEE80211_ELEMID_VENDOR;
3465 frm[1] = 4 + sizeof(struct ieee80211_ie_htcap) - 2;
3466 frm[2] = (BCM_OUI >> 0) & 0xff;
3467 frm[3] = (BCM_OUI >> 8) & 0xff;
3468 frm[4] = (BCM_OUI >> 16) & 0xff;
3469 frm[5] = BCM_OUI_HTCAP;
3470 return ieee80211_add_htcap_body(frm + 6, ni);
3471}
3472
3473/*
3474 * Construct the MCS bit mask of basic rates
3475 * for inclusion in an HT information element.
3476 */
3477static void
3478ieee80211_set_basic_htrates(uint8_t *frm, const struct ieee80211_htrateset *rs)
3479{
3480 int i;
3481
3482 for (i = 0; i < rs->rs_nrates; i++) {
3483 int r = rs->rs_rates[i] & IEEE80211_RATE_VAL;
3484 if ((rs->rs_rates[i] & IEEE80211_RATE_BASIC) &&
3485 r < IEEE80211_HTRATE_MAXSIZE) {
3486 /* NB: this assumes a particular implementation */
3487 setbit(frm, r);
3488 }
3489 }
3490}
3491
3492/*
3493 * Update the HTINFO ie for a beacon frame.
3494 */
3495void
3496ieee80211_ht_update_beacon(struct ieee80211vap *vap,
3497 struct ieee80211_beacon_offsets *bo)
3498{
3499#define PROTMODE (IEEE80211_HTINFO_OPMODE|IEEE80211_HTINFO_NONHT_PRESENT)
3500 struct ieee80211_node *ni;
3501 const struct ieee80211_channel *bsschan;
3502 struct ieee80211com *ic = vap->iv_ic;
3503 struct ieee80211_ie_htinfo *ht =
3504 (struct ieee80211_ie_htinfo *) bo->bo_htinfo;
3505
3506 ni = ieee80211_ref_node(vap->iv_bss);
3507 bsschan = ni->ni_chan;
3508
3509 /* XXX only update on channel change */
3510 ht->hi_ctrlchannel = ieee80211_chan2ieee(ic, bsschan);
3511 if (vap->iv_flags_ht & IEEE80211_FHT_RIFS)
3512 ht->hi_byte1 = IEEE80211_HTINFO_RIFSMODE_PERM;
3513 else
3514 ht->hi_byte1 = IEEE80211_HTINFO_RIFSMODE_PROH;
3515 if (IEEE80211_IS_CHAN_HT40U(bsschan))
3516 ht->hi_byte1 |= IEEE80211_HTINFO_2NDCHAN_ABOVE;
3517 else if (IEEE80211_IS_CHAN_HT40D(bsschan))
3518 ht->hi_byte1 |= IEEE80211_HTINFO_2NDCHAN_BELOW;
3519 else
3520 ht->hi_byte1 |= IEEE80211_HTINFO_2NDCHAN_NONE;
3521 if (IEEE80211_IS_CHAN_HT40(bsschan))
3522 ht->hi_byte1 |= IEEE80211_HTINFO_TXWIDTH_2040;
3523
3524 /* protection mode */
3525 /*
3526 * XXX TODO: this uses the global flag, not the per-VAP flag.
3527 * Eventually (once the protection modes are done per-channel
3528 * rather than per-VAP) we can flip this over to be per-VAP but
3529 * using the channel protection mode.
3530 */
3531 ht->hi_byte2 = (ht->hi_byte2 &~ PROTMODE) | ic->ic_curhtprotmode;
3532
3533 ieee80211_free_node(ni);
3534
3535 /* XXX propagate to vendor ie's */
3536#undef PROTMODE
3537}
3538
3539/*
3540 * Add body of an HTINFO information element.
3541 *
3542 * NB: We don't use struct ieee80211_ie_htinfo because we can
3543 * be called to fillin both a standard ie and a compat ie that
3544 * has a vendor OUI at the front.
3545 */
3546static uint8_t *
3547ieee80211_add_htinfo_body(uint8_t *frm, struct ieee80211_node *ni)
3548{
3549 struct ieee80211vap *vap = ni->ni_vap;
3550 struct ieee80211com *ic = ni->ni_ic;
3551
3552 /* pre-zero remainder of ie */
3553 memset(frm, 0, sizeof(struct ieee80211_ie_htinfo) - 2);
3554
3555 /* primary/control channel center */
3556 *frm++ = ieee80211_chan2ieee(ic, ni->ni_chan);
3557
3558 if (vap->iv_flags_ht & IEEE80211_FHT_RIFS)
3559 frm[0] = IEEE80211_HTINFO_RIFSMODE_PERM;
3560 else
3561 frm[0] = IEEE80211_HTINFO_RIFSMODE_PROH;
3562 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan))
3563 frm[0] |= IEEE80211_HTINFO_2NDCHAN_ABOVE;
3564 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan))
3565 frm[0] |= IEEE80211_HTINFO_2NDCHAN_BELOW;
3566 else
3567 frm[0] |= IEEE80211_HTINFO_2NDCHAN_NONE;
3568 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan))
3569 frm[0] |= IEEE80211_HTINFO_TXWIDTH_2040;
3570
3571 /*
3572 * Add current protection mode. Unlike for beacons,
3573 * this will respect the per-VAP flags.
3574 */
3575 frm[1] = vap->iv_curhtprotmode;
3576
3577 frm += 5;
3578
3579 /* basic MCS set */
3580 ieee80211_set_basic_htrates(frm, &ni->ni_htrates);
3581 frm += sizeof(struct ieee80211_ie_htinfo) -
3582 __offsetof(struct ieee80211_ie_htinfo, hi_basicmcsset);
3583 return frm;
3584}
3585
3586/*
3587 * Add 802.11n HT information element.
3588 */
3589uint8_t *
3590ieee80211_add_htinfo(uint8_t *frm, struct ieee80211_node *ni)
3591{
3592 frm[0] = IEEE80211_ELEMID_HTINFO;
3593 frm[1] = sizeof(struct ieee80211_ie_htinfo) - 2;
3594 return ieee80211_add_htinfo_body(frm + 2, ni);
3595}
3596
3597/*
3598 * Add Broadcom OUI wrapped standard HTINFO ie; this is
3599 * used for compatibility w/ pre-draft implementations.
3600 */
3601uint8_t *
3602ieee80211_add_htinfo_vendor(uint8_t *frm, struct ieee80211_node *ni)
3603{
3604 frm[0] = IEEE80211_ELEMID_VENDOR;
3605 frm[1] = 4 + sizeof(struct ieee80211_ie_htinfo) - 2;
3606 frm[2] = (BCM_OUI >> 0) & 0xff;
3607 frm[3] = (BCM_OUI >> 8) & 0xff;
3608 frm[4] = (BCM_OUI >> 16) & 0xff;
3609 frm[5] = BCM_OUI_HTINFO;
3610 return ieee80211_add_htinfo_body(frm + 6, ni);
3611}
ieee80211_phymode
ieee80211_phymode
Definition: _ieee80211.h:61
IEEE80211_MODE_11NG
@ IEEE80211_MODE_11NG
Definition: _ieee80211.h:71
IEEE80211_MODE_11NA
@ IEEE80211_MODE_11NA
Definition: _ieee80211.h:70
IEEE80211_CHAN_HT40
#define IEEE80211_CHAN_HT40
Definition: _ieee80211.h:201
IEEE80211_CHAN_VHT160
#define IEEE80211_CHAN_VHT160
Definition: _ieee80211.h:197
IEEE80211_HTC_RX_AMSDU_AMPDU
#define IEEE80211_HTC_RX_AMSDU_AMPDU
Definition: _ieee80211.h:533
IEEE80211_IS_CHAN_HT
#define IEEE80211_IS_CHAN_HT(_c)
Definition: _ieee80211.h:291
IEEE80211_HTC_TXLDPC
#define IEEE80211_HTC_TXLDPC
Definition: _ieee80211.h:532
IEEE80211_CHAN_VHT40D
#define IEEE80211_CHAN_VHT40D
Definition: _ieee80211.h:195
IEEE80211_HTC_TX_AMSDU_AMPDU
#define IEEE80211_HTC_TX_AMSDU_AMPDU
Definition: _ieee80211.h:534
IEEE80211_PROT_RTSCTS
@ IEEE80211_PROT_RTSCTS
Definition: _ieee80211.h:102
IEEE80211_CHAN_HT
#define IEEE80211_CHAN_HT
Definition: _ieee80211.h:202
IEEE80211_CHAN_HT40D
#define IEEE80211_CHAN_HT40D
Definition: _ieee80211.h:187
IEEE80211_HTC_RXMCS32
#define IEEE80211_HTC_RXMCS32
Definition: _ieee80211.h:529
IEEE80211_CHAN_VHT40U
#define IEEE80211_CHAN_VHT40U
Definition: _ieee80211.h:194
IEEE80211_IS_CHAN_VHT80
#define IEEE80211_IS_CHAN_VHT80(_c)
Definition: _ieee80211.h:338
IEEE80211_HTC_HT
#define IEEE80211_HTC_HT
Definition: _ieee80211.h:525
IEEE80211_HTC_AMPDU
#define IEEE80211_HTC_AMPDU
Definition: _ieee80211.h:522
IEEE80211_CHAN_VHT20
#define IEEE80211_CHAN_VHT20
Definition: _ieee80211.h:193
IEEE80211_HTC_RIFS
#define IEEE80211_HTC_RIFS
Definition: _ieee80211.h:527
IEEE80211_CHAN_VHT80P80
#define IEEE80211_CHAN_VHT80P80
Definition: _ieee80211.h:198
IEEE80211_CHAN_VHT80
#define IEEE80211_CHAN_VHT80
Definition: _ieee80211.h:196
IEEE80211_CHAN_ANYC
#define IEEE80211_CHAN_ANYC
Definition: _ieee80211.h:165
IEEE80211_IS_CHAN_HT40D
#define IEEE80211_IS_CHAN_HT40D(_c)
Definition: _ieee80211.h:299
IEEE80211_HTC_SMPS
#define IEEE80211_HTC_SMPS
Definition: _ieee80211.h:526
IEEE80211_HTC_AMSDU
#define IEEE80211_HTC_AMSDU
Definition: _ieee80211.h:523
IEEE80211_CHAN_VHT
#define IEEE80211_CHAN_VHT
Definition: _ieee80211.h:205
IEEE80211_CHAN_HT40U
#define IEEE80211_CHAN_HT40U
Definition: _ieee80211.h:186
IEEE80211_IS_CHAN_HT40
#define IEEE80211_IS_CHAN_HT40(_c)
Definition: _ieee80211.h:295
IEEE80211_M_HOSTAP
@ IEEE80211_M_HOSTAP
Definition: _ieee80211.h:90
IEEE80211_M_STA
@ IEEE80211_M_STA
Definition: _ieee80211.h:87
IEEE80211_IS_CHAN_VHT
#define IEEE80211_IS_CHAN_VHT(_c)
Definition: _ieee80211.h:316
IEEE80211_HTC_TXMCS32
#define IEEE80211_HTC_TXMCS32
Definition: _ieee80211.h:531
IEEE80211_HTC_TXUNEQUAL
#define IEEE80211_HTC_TXUNEQUAL
Definition: _ieee80211.h:530
IEEE80211_HTRATE_MAXSIZE
#define IEEE80211_HTRATE_MAXSIZE
Definition: _ieee80211.h:396
IEEE80211_HTC_RXUNEQUAL
#define IEEE80211_HTC_RXUNEQUAL
Definition: _ieee80211.h:528
IEEE80211_CHAN_HT20
#define IEEE80211_CHAN_HT20
Definition: _ieee80211.h:185
IEEE80211_RATE_MCS
#define IEEE80211_RATE_MCS
Definition: _ieee80211.h:403
IEEE80211_IS_CHAN_HT20
#define IEEE80211_IS_CHAN_HT20(_c)
Definition: _ieee80211.h:293
IEEE80211_IS_CHAN_HT40U
#define IEEE80211_IS_CHAN_HT40U(_c)
Definition: _ieee80211.h:297
ic_printf
int ic_printf(struct ieee80211com *ic, const char *fmt,...)
Definition: ieee80211.c:278
ieee80211_chan2ieee
int ieee80211_chan2ieee(struct ieee80211com *ic, const struct ieee80211_channel *c)
Definition: ieee80211.c:1076
ieee80211_rate2media
int ieee80211_rate2media(struct ieee80211com *ic, int rate, enum ieee80211_phymode mode)
Definition: ieee80211.c:2360
ieee80211_find_channel
struct ieee80211_channel * ieee80211_find_channel(struct ieee80211com *ic, int freq, int flags)
Definition: ieee80211.c:1744
ieee80211_phymode_name
const char * ieee80211_phymode_name[IEEE80211_MODE_MAX]
Definition: ieee80211.c:63
IEEE80211_VHT_CHANWIDTH_USE_HT
#define IEEE80211_VHT_CHANWIDTH_USE_HT
Definition: ieee80211.h:789
ieee80211_seq
uint16_t ieee80211_seq
Definition: ieee80211.h:45
IEEE80211_FC0_SUBTYPE_ACTION
#define IEEE80211_FC0_SUBTYPE_ACTION
Definition: ieee80211.h:139
IEEE80211_ACTION_CAT_BA
#define IEEE80211_ACTION_CAT_BA
Definition: ieee80211.h:387
IEEE80211_FC1_RETRY
#define IEEE80211_FC1_RETRY
Definition: ieee80211.h:192
IEEE80211_HTINFO_RIFSMODE_PERM
#define IEEE80211_HTINFO_RIFSMODE_PERM
Definition: ieee80211.h:714
IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK
#define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK
Definition: ieee80211.h:811
IEEE80211_FC0_TYPE_CTL
#define IEEE80211_FC0_TYPE_CTL
Definition: ieee80211.h:121
IEEE80211_SEQ_SEQ_SHIFT
#define IEEE80211_SEQ_SEQ_SHIFT
Definition: ieee80211.h:206
IEEE80211_VHT_CHANWIDTH_80P80MHZ
#define IEEE80211_VHT_CHANWIDTH_80P80MHZ
Definition: ieee80211.h:792
IEEE80211_HTCAP_SMPS_ENA
#define IEEE80211_HTCAP_SMPS_ENA
Definition: ieee80211.h:629
IEEE80211_VHT_CHANWIDTH_160MHZ
#define IEEE80211_VHT_CHANWIDTH_160MHZ
Definition: ieee80211.h:791
IEEE80211_BAPS_AMSDU
#define IEEE80211_BAPS_AMSDU
Definition: ieee80211.h:432
IEEE80211_ACTION_CAT_HT
#define IEEE80211_ACTION_CAT_HT
Definition: ieee80211.h:388
IEEE80211_BAPS_POLICY_IMMEDIATE
#define IEEE80211_BAPS_POLICY_IMMEDIATE
Definition: ieee80211.h:436
IEEE80211_DELBAPS_INIT
#define IEEE80211_DELBAPS_INIT
Definition: ieee80211.h:447
IEEE80211_HTCAP_MAXAMSDU
#define IEEE80211_HTCAP_MAXAMSDU
Definition: ieee80211.h:640
IEEE80211_HTCAP_MAXRXAMPDU
#define IEEE80211_HTCAP_MAXRXAMPDU
Definition: ieee80211.h:654
WME_AC_BE
#define WME_AC_BE
Definition: ieee80211.h:1207
IEEE80211_HTCAP_LDPC
#define IEEE80211_HTCAP_LDPC
Definition: ieee80211.h:623
IEEE80211_SEQ_INC
#define IEEE80211_SEQ_INC(seq)
Definition: ieee80211.h:211
IEEE80211_HTINFO_OPMODE_MIXED
#define IEEE80211_HTINFO_OPMODE_MIXED
Definition: ieee80211.h:727
IEEE80211_HTCAP_CHWIDTH40
#define IEEE80211_HTCAP_CHWIDTH40
Definition: ieee80211.h:624
BCM_OUI_HTINFO
#define BCM_OUI_HTINFO
Definition: ieee80211.h:1166
IEEE80211_ACTION_HT_MIMOPWRSAVE
#define IEEE80211_ACTION_HT_MIMOPWRSAVE
Definition: ieee80211.h:396
WME_AC_VI
#define WME_AC_VI
Definition: ieee80211.h:1209
IEEE80211_HTCAP_SHORTGI20
#define IEEE80211_HTCAP_SHORTGI20
Definition: ieee80211.h:631
IEEE80211_HTCAP_SMPS_OFF
#define IEEE80211_HTCAP_SMPS_OFF
Definition: ieee80211.h:626
IEEE80211_BAR_NOACK
#define IEEE80211_BAR_NOACK
Definition: ieee80211.h:480
IEEE80211_RATE_VAL
#define IEEE80211_RATE_VAL
Definition: ieee80211.h:1146
IEEE80211_VHT_CHANWIDTH_80MHZ
#define IEEE80211_VHT_CHANWIDTH_80MHZ
Definition: ieee80211.h:790
IEEE80211_SEQ_FRAG_MASK
#define IEEE80211_SEQ_FRAG_MASK
Definition: ieee80211.h:203
IEEE80211_HTCAP_MPDUDENSITY_NA
#define IEEE80211_HTCAP_MPDUDENSITY_NA
Definition: ieee80211.h:662
IEEE80211_FC0_SUBTYPE_BAR
#define IEEE80211_FC0_SUBTYPE_BAR
Definition: ieee80211.h:143
IEEE80211_ACTION_BA_ADDBA_RESPONSE
#define IEEE80211_ACTION_BA_ADDBA_RESPONSE
Definition: ieee80211.h:422
IEEE80211_ACTION_HT_TXCHWIDTH
#define IEEE80211_ACTION_HT_TXCHWIDTH
Definition: ieee80211.h:395
WME_AC_BK
#define WME_AC_BK
Definition: ieee80211.h:1208
IEEE80211_RATE_BASIC
#define IEEE80211_RATE_BASIC
Definition: ieee80211.h:1145
IEEE80211_HTINFO_RIFSMODE_PROH
#define IEEE80211_HTINFO_RIFSMODE_PROH
Definition: ieee80211.h:713
IEEE80211_HTINFO_TXWIDTH_2040
#define IEEE80211_HTINFO_TXWIDTH_2040
Definition: ieee80211.h:711
IEEE80211_HTINFO_NONHT_PRESENT
#define IEEE80211_HTINFO_NONHT_PRESENT
Definition: ieee80211.h:730
IEEE80211_IS_MULTICAST
#define IEEE80211_IS_MULTICAST(_a)
Definition: ieee80211.h:39
IEEE80211_A_HT_TXCHWIDTH_20
#define IEEE80211_A_HT_TXCHWIDTH_20
Definition: ieee80211.h:404
IEEE80211_SEQ_ADD
#define IEEE80211_SEQ_ADD(seq, incr)
Definition: ieee80211.h:209
IEEE80211_HTCAP_TXSTBC
#define IEEE80211_HTCAP_TXSTBC
Definition: ieee80211.h:633
IEEE80211_ACTION_BA_ADDBA_REQUEST
#define IEEE80211_ACTION_BA_ADDBA_REQUEST
Definition: ieee80211.h:421
BCM_OUI_HTCAP
#define BCM_OUI_HTCAP
Definition: ieee80211.h:1165
IEEE80211_BAPS_BUFSIZ
#define IEEE80211_BAPS_BUFSIZ
Definition: ieee80211.h:426
IEEE80211_DELBAPS_TID
#define IEEE80211_DELBAPS_TID
Definition: ieee80211.h:445
IEEE80211_HTCAP_SMPS
#define IEEE80211_HTCAP_SMPS
Definition: ieee80211.h:625
TID_TO_WME_AC
#define TID_TO_WME_AC(_tid)
Definition: ieee80211.h:319
IEEE80211_A_HT_MIMOPWRSAVE_ENA
#define IEEE80211_A_HT_MIMOPWRSAVE_ENA
Definition: ieee80211.h:413
IEEE80211_HTINFO_2NDCHAN_NONE
#define IEEE80211_HTINFO_2NDCHAN_NONE
Definition: ieee80211.h:705
IEEE80211_BAR_SEQ_START
#define IEEE80211_BAR_SEQ_START
Definition: ieee80211.h:483
IEEE80211_HTINFO_2NDCHAN_ABOVE
#define IEEE80211_HTINFO_2NDCHAN_ABOVE
Definition: ieee80211.h:706
IEEE80211_FC0_VERSION_0
#define IEEE80211_FC0_VERSION_0
Definition: ieee80211.h:117
IEEE80211_BAPS_TID
#define IEEE80211_BAPS_TID
Definition: ieee80211.h:428
IEEE80211_A_HT_MIMOPWRSAVE_MODE
#define IEEE80211_A_HT_MIMOPWRSAVE_MODE
Definition: ieee80211.h:414
IEEE80211_ACTION_BA_DELBA
#define IEEE80211_ACTION_BA_DELBA
Definition: ieee80211.h:423
IEEE80211_HTINFO_OPMODE_PURE
#define IEEE80211_HTINFO_OPMODE_PURE
Definition: ieee80211.h:724
IEEE80211_HTINFO_2NDCHAN
#define IEEE80211_HTINFO_2NDCHAN
Definition: ieee80211.h:703
IEEE80211_BAR_TID
#define IEEE80211_BAR_TID
Definition: ieee80211.h:476
IEEE80211_A_HT_TXCHWIDTH_2040
#define IEEE80211_A_HT_TXCHWIDTH_2040
Definition: ieee80211.h:405
WME_NUM_TID
#define WME_NUM_TID
Definition: ieee80211.h:300
IEEE80211_HTCAP_RXSTBC
#define IEEE80211_HTCAP_RXSTBC
Definition: ieee80211.h:634
IEEE80211_HTCAP_MAXRXAMPDU_8K
#define IEEE80211_HTCAP_MAXRXAMPDU_8K
Definition: ieee80211.h:656
IEEE80211_SEQ_BA_RANGE
#define IEEE80211_SEQ_BA_RANGE
Definition: ieee80211.h:215
IEEE80211_BASEQ_START
#define IEEE80211_BASEQ_START
Definition: ieee80211.h:439
IEEE80211_REASON_TIMEOUT
@ IEEE80211_REASON_TIMEOUT
Definition: ieee80211.h:1283
IEEE80211_STATUS_UNSPECIFIED
@ IEEE80211_STATUS_UNSPECIFIED
Definition: ieee80211.h:1302
IEEE80211_STATUS_SUCCESS
@ IEEE80211_STATUS_SUCCESS
Definition: ieee80211.h:1301
BCM_OUI
#define BCM_OUI
Definition: ieee80211.h:1164
IEEE80211_FC0_QOSDATA
#define IEEE80211_FC0_QOSDATA
Definition: ieee80211.h:176
IEEE80211_ELEMID_VENDOR
@ IEEE80211_ELEMID_VENDOR
Definition: ieee80211.h:980
IEEE80211_ELEMID_HTCAP
@ IEEE80211_ELEMID_HTCAP
Definition: ieee80211.h:959
IEEE80211_ELEMID_HTINFO
@ IEEE80211_ELEMID_HTINFO
Definition: ieee80211.h:966
IEEE80211_HTCAP_SMPS_DYNAMIC
#define IEEE80211_HTCAP_SMPS_DYNAMIC
Definition: ieee80211.h:627
IEEE80211_HTCAP_MPDUDENSITY
#define IEEE80211_HTCAP_MPDUDENSITY
Definition: ieee80211.h:660
IEEE80211_SEQ_SUB
#define IEEE80211_SEQ_SUB(a, b)
Definition: ieee80211.h:212
IEEE80211_HTINFO_OPMODE
#define IEEE80211_HTINFO_OPMODE
Definition: ieee80211.h:722
IEEE80211_HTINFO_OPMODE_HT20PR
#define IEEE80211_HTINFO_OPMODE_HT20PR
Definition: ieee80211.h:726
IEEE80211_BAPS_POLICY
#define IEEE80211_BAPS_POLICY
Definition: ieee80211.h:430
IEEE80211_QOS_TID
#define IEEE80211_QOS_TID
Definition: ieee80211.h:234
WME_AC_VO
#define WME_AC_VO
Definition: ieee80211.h:1210
IEEE80211_BAR_COMP
#define IEEE80211_BAR_COMP
Definition: ieee80211.h:478
IEEE80211_SEQ_BA_BEFORE
#define IEEE80211_SEQ_BA_BEFORE(a, b)
Definition: ieee80211.h:216
IEEE80211_BASEQ_FRAG
#define IEEE80211_BASEQ_FRAG
Definition: ieee80211.h:441
IEEE80211_HTINFO_BASIC_STBCMCS
#define IEEE80211_HTINFO_BASIC_STBCMCS
Definition: ieee80211.h:740
IEEE80211_HTINFO_OPMODE_PROTOPT
#define IEEE80211_HTINFO_OPMODE_PROTOPT
Definition: ieee80211.h:725
IEEE80211_HTCAP_SHORTGI40
#define IEEE80211_HTCAP_SHORTGI40
Definition: ieee80211.h:632
IEEE80211_HTINFO_2NDCHAN_BELOW
#define IEEE80211_HTINFO_2NDCHAN_BELOW
Definition: ieee80211.h:708
ieee80211_send_action
int ieee80211_send_action(struct ieee80211_node *ni, int cat, int act, void *sa)
Definition: ieee80211_action.c:133
ieee80211_recv_action_register
int ieee80211_recv_action_register(int cat, int act, ieee80211_recv_action_func *f)
Definition: ieee80211_action.c:200
ieee80211_recv_action
int ieee80211_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, const uint8_t *frm, const uint8_t *efrm)
Definition: ieee80211_action.c:244
ieee80211_send_action_register
int ieee80211_send_action_register(int cat, int act, ieee80211_send_action_func *f)
Definition: ieee80211_action.c:89
ieee80211_action.h
ieee80211_recv_action_func
int ieee80211_recv_action_func(struct ieee80211_node *, const struct ieee80211_frame *, const uint8_t *, const uint8_t *)
Definition: ieee80211_action.h:46
ieee80211_send_action_func
int ieee80211_send_action_func(struct ieee80211_node *, int, int, void *)
Definition: ieee80211_action.h:39
ieee80211_sysctl_msecs_ticks
int ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS)
Definition: ieee80211_freebsd.c:185
ieee80211_getmgtframe
struct mbuf * ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen)
Definition: ieee80211_freebsd.c:478
ieee80211_add_callback
int ieee80211_add_callback(struct mbuf *m, void(*func)(struct ieee80211_node *, void *, int), void *arg)
Definition: ieee80211_freebsd.c:551
ieee80211_get_rx_params_ptr
const struct ieee80211_rx_stats * ieee80211_get_rx_params_ptr(struct mbuf *m)
Definition: ieee80211_freebsd.c:655
ieee80211_time_after
#define ieee80211_time_after(a, b)
Definition: ieee80211_freebsd.h:273
msecs_to_ticks
#define msecs_to_ticks(ms)
Definition: ieee80211_freebsd.h:269
IEEE80211_TX_LOCK
#define IEEE80211_TX_LOCK(_ic)
Definition: ieee80211_freebsd.h:96
IEEE80211_UNLOCK
#define IEEE80211_UNLOCK(_ic)
Definition: ieee80211_freebsd.h:73
M_WME_SETAC
#define M_WME_SETAC(m, ac)
Definition: ieee80211_freebsd.h:320
ieee80211_node_refcnt
#define ieee80211_node_refcnt(_ni)
Definition: ieee80211_freebsd.h:256
IEEE80211_LOCK_ASSERT
#define IEEE80211_LOCK_ASSERT(_ic)
Definition: ieee80211_freebsd.h:74
IEEE80211_TX_UNLOCK
#define IEEE80211_TX_UNLOCK(_ic)
Definition: ieee80211_freebsd.h:97
IEEE80211_LOCK
#define IEEE80211_LOCK(_ic)
Definition: ieee80211_freebsd.h:72
M_AMPDU_MPDU
#define M_AMPDU_MPDU
Definition: ieee80211_freebsd.h:287
M_AMPDU
#define M_AMPDU
Definition: ieee80211_freebsd.h:297
ieee80211_addba_backoff
static int ieee80211_addba_backoff
Definition: ieee80211_ht.c:152
htcap_update_mimo_ps
static __inline int htcap_update_mimo_ps(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1839
ieee80211_ht_adjust_channel
struct ieee80211_channel * ieee80211_ht_adjust_channel(struct ieee80211com *ic, struct ieee80211_channel *chan, int flags)
Definition: ieee80211_ht.c:1419
ieee80211_parse_htcap
void ieee80211_parse_htcap(struct ieee80211_node *ni, const uint8_t *ie)
Definition: ieee80211_ht.c:1673
ieee80211_recv_bar
void ieee80211_recv_bar(struct ieee80211_node *ni, struct mbuf *m0)
Definition: ieee80211_ht.c:1228
htcap_update_ldpc
static __inline void htcap_update_ldpc(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1884
ieee80211_addba_maxtries
static int ieee80211_addba_maxtries
Definition: ieee80211_ht.c:157
ieee80211_ht_updatehtcap
void ieee80211_ht_updatehtcap(struct ieee80211_node *ni, const uint8_t *htcapie)
Definition: ieee80211_ht.c:2058
htinfo_parse
static void htinfo_parse(struct ieee80211_node *ni, const struct ieee80211_ie_htinfo *htinfo)
Definition: ieee80211_ht.c:1692
ampdu_tx_setup
static void ampdu_tx_setup(struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.c:2186
null_addba_response_timeout
static void null_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.c:2267
ieee80211_ht_updateparams_final
int ieee80211_ht_updateparams_final(struct ieee80211_node *ni, const uint8_t *htcapie, const uint8_t *htinfoie)
Definition: ieee80211_ht.c:2016
bar_stop_timer
static void bar_stop_timer(struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.c:2852
ieee80211_ht_announce
void ieee80211_ht_announce(struct ieee80211com *ic)
Definition: ieee80211_ht.c:416
bar_timeout
static void bar_timeout(void *arg)
Definition: ieee80211_ht.c:2790
ieee80211_add_htcap_body
static uint8_t * ieee80211_add_htcap_body(uint8_t *frm, struct ieee80211_node *ni)
Definition: ieee80211_ht.c:3227
htinfo_update
static void htinfo_update(struct ieee80211vap *vap)
Definition: ieee80211_ht.c:1548
ieee80211_htprot_update
void ieee80211_htprot_update(struct ieee80211vap *vap, int protmode)
Definition: ieee80211_ht.c:1623
ieee80211_ht_update_beacon
void ieee80211_ht_update_beacon(struct ieee80211vap *vap, struct ieee80211_beacon_offsets *bo)
Definition: ieee80211_ht.c:3496
ieee80211_ampdu_enable
static int ieee80211_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.c:2659
ieee80211_ht_init
static void ieee80211_ht_init(void)
Definition: ieee80211_ht.c:175
ieee80211_add_htinfo_vendor
uint8_t * ieee80211_add_htinfo_vendor(uint8_t *frm, struct ieee80211_node *ni)
Definition: ieee80211_ht.c:3602
ampdu_tx_stop
static void ampdu_tx_stop(struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.c:2194
SYSINIT
SYSINIT(wlan_ht, SI_SUB_DRIVERS, SI_ORDER_FIRST, ieee80211_ht_init, NULL)
ampdu_rx_stop
static void ampdu_rx_stop(struct ieee80211_node *, struct ieee80211_rx_ampdu *)
Definition: ieee80211_ht.c:790
ieee80211_addba_stop
static void ieee80211_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.c:2387
ht_recv_action_ba_addba_request
static ieee80211_recv_action_func ht_recv_action_ba_addba_request
Definition: ieee80211_ht.c:164
ieee80211_ht_node_age
void ieee80211_ht_node_age(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1377
findhtchan
static struct ieee80211_channel * findhtchan(struct ieee80211com *ic, struct ieee80211_channel *c, int htflags)
Definition: ieee80211_ht.c:1409
ranges
static struct printranges ranges[]
ieee80211_ht_detach
void ieee80211_ht_detach(struct ieee80211com *ic)
Definition: ieee80211_ht.c:250
SYSCTL_PROC
SYSCTL_PROC(_net_wlan, OID_AUTO, ampdu_age, CTLTYPE_INT|CTLFLAG_RW|CTLFLAG_NEEDGIANT, &ieee80211_ampdu_age, 0, ieee80211_sysctl_msecs_ticks, "I", "AMPDU max reorder age (ms)")
ht_rateprint
static void ht_rateprint(struct ieee80211com *ic, enum ieee80211_phymode mode, int ratetype)
Definition: ieee80211_ht.c:366
ADDSHORT
#define ADDSHORT(frm, v)
Definition: ieee80211_ht.c:3034
ht_recv_action_ba_delba
static ieee80211_recv_action_func ht_recv_action_ba_delba
Definition: ieee80211_ht.c:166
OPMODE
#define OPMODE(x)
ieee80211_addba_response
static int ieee80211_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int code, int baparamset, int batimeout)
Definition: ieee80211_ht.c:2349
ieee80211_ampdu_tx_request_ext
int ieee80211_ampdu_tx_request_ext(struct ieee80211_node *ni, int tid)
Definition: ieee80211_ht.c:2299
ADDRATE
#define ADDRATE(x)
ampdu_rx_flush_upto
static void ampdu_rx_flush_upto(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, ieee80211_seq winstart)
Definition: ieee80211_ht.c:941
ampdu_rx_flush
static void ampdu_rx_flush(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap)
Definition: ieee80211_ht.c:913
addba_stop_timeout
static void addba_stop_timeout(struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.c:2257
ieee80211_vht_get_vhtflags
static uint32_t ieee80211_vht_get_vhtflags(struct ieee80211_node *ni, uint32_t htflags)
Definition: ieee80211_ht.c:1933
ieee80211_send_bar
int ieee80211_send_bar(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, ieee80211_seq seq)
Definition: ieee80211_ht.c:2915
ieee80211_ht_node_cleanup
void ieee80211_ht_node_cleanup(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1348
ampdu_rx_dispatch
static void ampdu_rx_dispatch(struct ieee80211_rx_ampdu *rap, struct ieee80211_node *ni)
Definition: ieee80211_ht.c:877
addba_timeout
static void addba_timeout(void *arg)
Definition: ieee80211_ht.c:2234
ieee80211_parse_htinfo
void ieee80211_parse_htinfo(struct ieee80211_node *ni, const uint8_t *ie)
Definition: ieee80211_ht.c:1712
ht_send_action_ba_addba
static ieee80211_send_action_func ht_send_action_ba_addba
Definition: ieee80211_ht.c:170
ieee80211_htinfo_notify
void ieee80211_htinfo_notify(struct ieee80211vap *vap)
Definition: ieee80211_ht.c:1517
ieee80211_recv_bar_ena
static int ieee80211_recv_bar_ena
Definition: ieee80211_ht.c:143
ieee80211_add_htinfo_body
static uint8_t * ieee80211_add_htinfo_body(uint8_t *frm, struct ieee80211_node *ni)
Definition: ieee80211_ht.c:3547
ieee80211_add_htcap_vendor
uint8_t * ieee80211_add_htcap_vendor(uint8_t *frm, struct ieee80211_node *ni)
Definition: ieee80211_ht.c:3462
bar_start_timer
static void bar_start_timer(struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.c:2842
ampdu_dispatch
static __inline void ampdu_dispatch(struct ieee80211_node *ni, struct mbuf *m)
Definition: ieee80211_ht.c:806
ieee80211_ht_node_init
void ieee80211_ht_node_init(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1308
ieee80211_ampdu_stop
void ieee80211_ampdu_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int reason)
Definition: ieee80211_ht.c:2755
ieee80211_ampdu_reorder
int ieee80211_ampdu_reorder(struct ieee80211_node *ni, struct mbuf *m, const struct ieee80211_rx_stats *rxs)
Definition: ieee80211_ht.c:1002
CONSUMED
#define CONSUMED
ht_announce
static void ht_announce(struct ieee80211com *ic, enum ieee80211_phymode mode)
Definition: ieee80211_ht.c:394
ieee80211_add_htcap
uint8_t * ieee80211_add_htcap(uint8_t *frm, struct ieee80211_node *ni)
Definition: ieee80211_ht.c:3360
__FBSDID
__FBSDID("$FreeBSD$")
ieee80211_bar_maxtries
static int ieee80211_bar_maxtries
Definition: ieee80211_ht.c:162
ieee80211_ht_attach
void ieee80211_ht_attach(struct ieee80211com *ic)
Definition: ieee80211_ht.c:231
ieee80211_addba_request
static int ieee80211_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int dialogtoken, int baparamset, int batimeout)
Definition: ieee80211_ht.c:2278
ieee80211_ht_vattach
void ieee80211_ht_vattach(struct ieee80211vap *vap)
Definition: ieee80211_ht.c:255
ieee80211_ht_timeout
void ieee80211_ht_timeout(struct ieee80211vap *vap)
Definition: ieee80211_ht.c:1655
ieee80211_bar_response
static void ieee80211_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int status)
Definition: ieee80211_ht.c:2885
ieee80211_setup_htrates
int ieee80211_setup_htrates(struct ieee80211_node *ni, const uint8_t *ie, int flags)
Definition: ieee80211_ht.c:2106
ieee80211_set_mcsset
static void ieee80211_set_mcsset(struct ieee80211com *ic, uint8_t *frm)
Definition: ieee80211_ht.c:3182
ieee80211_ampdu_tx_request_active_ext
int ieee80211_ampdu_tx_request_active_ext(struct ieee80211_node *ni, int tid, int status)
Definition: ieee80211_ht.c:2322
htcap_update_shortgi
static __inline void htcap_update_shortgi(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1866
ieee80211_init_suphtrates
void ieee80211_init_suphtrates(struct ieee80211com *ic)
Definition: ieee80211_ht.c:429
PROCESS
#define PROCESS
ampdu_rx_purge
static void ampdu_rx_purge(struct ieee80211_rx_ampdu *rap)
Definition: ieee80211_ht.c:668
ampdu_rx_moveup
static void ampdu_rx_moveup(struct ieee80211_rx_ampdu *rap, struct ieee80211_node *ni, int i, int winstart)
Definition: ieee80211_ht.c:835
ampdu_dispatch_slot
static int ampdu_dispatch_slot(struct ieee80211_rx_ampdu *rap, struct ieee80211_node *ni, int i)
Definition: ieee80211_ht.c:814
ieee80211_setup_basic_htrates
void ieee80211_setup_basic_htrates(struct ieee80211_node *ni, const uint8_t *ie)
Definition: ieee80211_ht.c:2160
ieee80211_ht_node_join
void ieee80211_ht_node_join(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1577
ieee80211_add_htcap_ch
uint8_t * ieee80211_add_htcap_ch(uint8_t *frm, struct ieee80211vap *vap, struct ieee80211_channel *c)
Definition: ieee80211_ht.c:3449
ieee80211_ampdu_request
int ieee80211_ampdu_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.c:2690
ieee80211_ht_updatehtcap_final
void ieee80211_ht_updatehtcap_final(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:2075
ieee80211_htrates
const struct ieee80211_mcs_rates ieee80211_htrates[IEEE80211_HTRATE_MAXSIZE]
Definition: ieee80211_ht.c:57
senderr
#define senderr(_x, _v)
ieee80211_decap_amsdu
struct mbuf * ieee80211_decap_amsdu(struct ieee80211_node *ni, struct mbuf *m)
Definition: ieee80211_ht.c:471
ieee80211_ht_updateparams
void ieee80211_ht_updateparams(struct ieee80211_node *ni, const uint8_t *htcapie, const uint8_t *htinfoie)
Definition: ieee80211_ht.c:1903
ht_getrate
static int ht_getrate(struct ieee80211com *ic, int index, enum ieee80211_phymode mode, int ratetype)
Definition: ieee80211_ht.c:322
ieee80211_add_htinfo
uint8_t * ieee80211_add_htinfo(uint8_t *frm, struct ieee80211_node *ni)
Definition: ieee80211_ht.c:3590
htinfo_update_chw
static int htinfo_update_chw(struct ieee80211_node *ni, int htflags, int vhtflags)
Definition: ieee80211_ht.c:1732
ht_action_output
static int ht_action_output(struct ieee80211_node *ni, struct mbuf *m)
Definition: ieee80211_ht.c:3020
ht_recv_action_ht_mimopwrsave
static ieee80211_recv_action_func ht_recv_action_ht_mimopwrsave
Definition: ieee80211_ht.c:167
ieee80211_set_basic_htrates
static void ieee80211_set_basic_htrates(uint8_t *frm, const struct ieee80211_htrateset *rs)
Definition: ieee80211_ht.c:3478
ampdu_rx_start
static int ampdu_rx_start(struct ieee80211_node *, struct ieee80211_rx_ampdu *, int baparamset, int batimeout, int baseqctl)
Definition: ieee80211_ht.c:698
ieee80211_ht_vdetach
void ieee80211_ht_vdetach(struct ieee80211vap *vap)
Definition: ieee80211_ht.c:317
bar_tx_complete
static void bar_tx_complete(struct ieee80211_node *ni, void *arg, int status)
Definition: ieee80211_ht.c:2862
ieee80211_ht_wds_init
void ieee80211_ht_wds_init(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1458
SYSCTL_INT
SYSCTL_INT(_net_wlan, OID_AUTO, recv_bar, CTLFLAG_RW, &ieee80211_recv_bar_ena, 0, "BAR frame processing (ena/dis)")
ht_recv_action_ba_addba_response
static ieee80211_recv_action_func ht_recv_action_ba_addba_response
Definition: ieee80211_ht.c:165
ieee80211_ampdu_rx_start_ext
int ieee80211_ampdu_rx_start_ext(struct ieee80211_node *ni, int tid, int seq, int baw)
Definition: ieee80211_ht.c:731
ieee80211_bar_timeout
static int ieee80211_bar_timeout
Definition: ieee80211_ht.c:161
ht_send_action_ht_txchwidth
static ieee80211_send_action_func ht_send_action_ht_txchwidth
Definition: ieee80211_ht.c:172
ht_send_action_ba_delba
static ieee80211_send_action_func ht_send_action_ba_delba
Definition: ieee80211_ht.c:171
ieee80211_addba_timeout
static int ieee80211_addba_timeout
Definition: ieee80211_ht.c:147
ht_recv_action_ht_txchwidth
static ieee80211_recv_action_func ht_recv_action_ht_txchwidth
Definition: ieee80211_ht.c:168
ieee80211_ht_node_leave
void ieee80211_ht_node_leave(struct ieee80211_node *ni)
Definition: ieee80211_ht.c:1595
ieee80211_add_htcap_body_ch
static uint8_t * ieee80211_add_htcap_body_ch(uint8_t *frm, struct ieee80211vap *vap, struct ieee80211_channel *c)
Definition: ieee80211_ht.c:3372
ampdu_rx_purge_slot
static void ampdu_rx_purge_slot(struct ieee80211_rx_ampdu *rap, int i)
Definition: ieee80211_ht.c:520
ieee80211_ampdu_rx_init_rap
static void ieee80211_ampdu_rx_init_rap(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap)
Definition: ieee80211_ht.c:683
ieee80211_ampdu_age
static int ieee80211_ampdu_age
Definition: ieee80211_ht.c:137
ampdu_rx_add_slot
static int ampdu_rx_add_slot(struct ieee80211_rx_ampdu *rap, int off, int tid, ieee80211_seq rxseq, struct ieee80211_node *ni, struct mbuf *m, const struct ieee80211_rx_stats *rxs)
Definition: ieee80211_ht.c:543
addba_start_timeout
static void addba_start_timeout(struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.c:2247
ieee80211_ampdu_rx_stop_ext
void ieee80211_ampdu_rx_stop_ext(struct ieee80211_node *ni, int tid)
Definition: ieee80211_ht.c:777
IEEE80211_AGGR_BAWMAX
#define IEEE80211_AGGR_BAWMAX
Definition: ieee80211_ht.h:38
IEEE80211_AGGR_XCHGPEND
#define IEEE80211_AGGR_XCHGPEND
Definition: ieee80211_ht.h:46
IEEE80211_AGGR_SETUP
#define IEEE80211_AGGR_SETUP
Definition: ieee80211_ht.h:48
IEEE80211_AMPDU_RUNNING
#define IEEE80211_AMPDU_RUNNING(tap)
Definition: ieee80211_ht.h:71
IEEE80211_NONHT_PRESENT_AGE
#define IEEE80211_NONHT_PRESENT_AGE
Definition: ieee80211_ht.h:40
IEEE80211_AGGR_RUNNING
#define IEEE80211_AGGR_RUNNING
Definition: ieee80211_ht.h:47
IEEE80211_AGGR_BARPEND
#define IEEE80211_AGGR_BARPEND
Definition: ieee80211_ht.h:50
ieee80211_txampdu_init_pps
static __inline void ieee80211_txampdu_init_pps(struct ieee80211_tx_ampdu *tap)
Definition: ieee80211_ht.h:105
IEEE80211_AGGR_IMMEDIATE
#define IEEE80211_AGGR_IMMEDIATE
Definition: ieee80211_ht.h:45
IEEE80211_AGGR_WAITRX
#define IEEE80211_AGGR_WAITRX
Definition: ieee80211_ht.h:51
IEEE80211_AGGR_AMSDU
#define IEEE80211_AGGR_AMSDU
Definition: ieee80211_ht.h:52
IEEE80211_AGGR_NAK
#define IEEE80211_AGGR_NAK
Definition: ieee80211_ht.h:49
ieee80211_decap1
struct mbuf * ieee80211_decap1(struct mbuf *m, int *framelen)
Definition: ieee80211_input.c:380
ieee80211_input.h
ieee80211_check_rxseq_amsdu
static __inline int ieee80211_check_rxseq_amsdu(const struct ieee80211_rx_stats *rxs)
Definition: ieee80211_input.h:137
ieee80211_check_rxseq_amsdu_more
static __inline int ieee80211_check_rxseq_amsdu_more(const struct ieee80211_rx_stats *rxs)
Definition: ieee80211_input.h:150
ieee80211_free_node
void ieee80211_free_node(struct ieee80211_node *ni)
Definition: ieee80211_node.c:2130
IEEE80211_NODE_HTCOMPAT
#define IEEE80211_NODE_HTCOMPAT
Definition: ieee80211_node.h:134
IEEE80211_NODE_AMSDU_TX
#define IEEE80211_NODE_AMSDU_TX
Definition: ieee80211_node.h:146
IEEE80211_NODE_LDPC
#define IEEE80211_NODE_LDPC
Definition: ieee80211_node.h:148
IEEE80211_NODE_MIMO_RTS
#define IEEE80211_NODE_MIMO_RTS
Definition: ieee80211_node.h:140
IEEE80211_NODE_SGI40
#define IEEE80211_NODE_SGI40
Definition: ieee80211_node.h:143
IEEE80211_NODE_AMSDU
#define IEEE80211_NODE_AMSDU
Definition: ieee80211_node.h:273
IEEE80211_NODE_STAT
#define IEEE80211_NODE_STAT(ni, stat)
Definition: ieee80211_node.h:288
IEEE80211_NODE_SGI20
#define IEEE80211_NODE_SGI20
Definition: ieee80211_node.h:142
IEEE80211_NODE_MIMO_PS
#define IEEE80211_NODE_MIMO_PS
Definition: ieee80211_node.h:139
IEEE80211_NODE_RIFS
#define IEEE80211_NODE_RIFS
Definition: ieee80211_node.h:141
ieee80211_ref_node
static __inline struct ieee80211_node * ieee80211_ref_node(struct ieee80211_node *ni)
Definition: ieee80211_node.h:325
IEEE80211_NODE_AMPDU_RX
#define IEEE80211_NODE_AMPDU_RX
Definition: ieee80211_node.h:137
IEEE80211_NODE_AMPDU
#define IEEE80211_NODE_AMPDU
Definition: ieee80211_node.h:271
IEEE80211_NODE_HT
#define IEEE80211_NODE_HT
Definition: ieee80211_node.h:133
IEEE80211_NODE_VHT
#define IEEE80211_NODE_VHT
Definition: ieee80211_node.h:147
IEEE80211_NODE_AMSDU_RX
#define IEEE80211_NODE_AMSDU_RX
Definition: ieee80211_node.h:145
ieee80211_mgmt_output
int ieee80211_mgmt_output(struct ieee80211_node *ni, struct mbuf *m, int type, struct ieee80211_bpf_params *params)
Definition: ieee80211_output.c:1014
ieee80211_raw_output
int ieee80211_raw_output(struct ieee80211vap *vap, struct ieee80211_node *ni, struct mbuf *m, const struct ieee80211_bpf_params *params)
Definition: ieee80211_output.c:561
ieee80211_wme_acnames
const char * ieee80211_wme_acnames[]
Definition: ieee80211_proto.c:99
ieee80211_reason_to_string
const char * ieee80211_reason_to_string(uint16_t reason)
Definition: ieee80211_proto.c:112
ieee80211_vap_update_ht_protmode
void ieee80211_vap_update_ht_protmode(struct ieee80211vap *vap)
Definition: ieee80211_proto.c:1257
ieee80211_fix_rate
int ieee80211_fix_rate(struct ieee80211_node *ni, struct ieee80211_rateset *nrs, int flags)
Definition: ieee80211_proto.c:640
ieee80211_input
#define ieee80211_input(ni, m, rssi, nf)
Definition: ieee80211_proto.h:85
IEEE80211_S_RUN
@ IEEE80211_S_RUN
Definition: ieee80211_proto.h:43
IEEE80211_BEACON_HTINFO
@ IEEE80211_BEACON_HTINFO
Definition: ieee80211_proto.h:419
ieee80211_getqos
static __inline uint8_t * ieee80211_getqos(void *data)
Definition: ieee80211_proto.h:316
maxrate
static int maxrate(const struct ieee80211_scan_entry *se)
Definition: ieee80211_scan_sta.c:809
chanflags
static const u_int chanflags[IEEE80211_MODE_MAX]
Definition: ieee80211_scan_sta.c:460
ieee80211_var.h
IEEE80211_ADDR_COPY
#define IEEE80211_ADDR_COPY(dst, src)
Definition: ieee80211_var.h:613
IEEE80211_FVHT_USEVHT80
#define IEEE80211_FVHT_USEVHT80
Definition: ieee80211_var.h:726
IEEE80211_CONF_VHT
#define IEEE80211_CONF_VHT(ic)
Definition: ieee80211_var.h:98
IEEE80211_FHT_AMPDU_TX
#define IEEE80211_FHT_AMPDU_TX
Definition: ieee80211_var.h:703
IEEE80211_MSG_XRATE
#define IEEE80211_MSG_XRATE
Definition: ieee80211_var.h:983
_IEEE80211_MASKSHIFT
#define _IEEE80211_MASKSHIFT(_v, _f)
Definition: ieee80211_var.h:1019
IEEE80211_FHT_AMSDU_TX
#define IEEE80211_FHT_AMSDU_TX
Definition: ieee80211_var.h:705
IEEE80211_FHT_USEHT40
#define IEEE80211_FHT_USEHT40
Definition: ieee80211_var.h:707
IEEE80211_FHT_HT
#define IEEE80211_FHT_HT
Definition: ieee80211_var.h:702
IEEE80211_MSG_ANY
#define IEEE80211_MSG_ANY
Definition: ieee80211_var.h:1010
_IEEE80211_SHIFTMASK
#define _IEEE80211_SHIFTMASK(_v, _f)
Definition: ieee80211_var.h:1020
ieee80211_htchanflags
static __inline int ieee80211_htchanflags(const struct ieee80211_channel *c)
Definition: ieee80211_var.h:918
IEEE80211_FEXT_WDSLEGACY
#define IEEE80211_FEXT_WDSLEGACY
Definition: ieee80211_var.h:681
IEEE80211_FVHT_USEVHT80P80
#define IEEE80211_FVHT_USEVHT80P80
Definition: ieee80211_var.h:728
IEEE80211_MSG_11N
#define IEEE80211_MSG_11N
Definition: ieee80211_var.h:978
IEEE80211_FHT_AMSDU_RX
#define IEEE80211_FHT_AMSDU_RX
Definition: ieee80211_var.h:706
IEEE80211_FVHT_USEVHT160
#define IEEE80211_FVHT_USEVHT160
Definition: ieee80211_var.h:727
IEEE80211_MSG_NODE
#define IEEE80211_MSG_NODE
Definition: ieee80211_var.h:985
IEEE80211_FVHT_USEVHT40
#define IEEE80211_FVHT_USEVHT40
Definition: ieee80211_var.h:725
IEEE80211_FHT_NONHT_PR
#define IEEE80211_FHT_NONHT_PR
Definition: ieee80211_var.h:698
IEEE80211_MSG_DEBUG
#define IEEE80211_MSG_DEBUG
Definition: ieee80211_var.h:979
IEEE80211_NOTE
#define IEEE80211_NOTE(_vap, _m, _ni, _fmt,...)
Definition: ieee80211_var.h:1093
IEEE80211_FHT_SHORTGI40
#define IEEE80211_FHT_SHORTGI40
Definition: ieee80211_var.h:710
IEEE80211_FHT_LDPC_RX
#define IEEE80211_FHT_LDPC_RX
Definition: ieee80211_var.h:700
IEEE80211_FVHT_VHT
#define IEEE80211_FVHT_VHT
Definition: ieee80211_var.h:724
IEEE80211_FHT_LDPC_TX
#define IEEE80211_FHT_LDPC_TX
Definition: ieee80211_var.h:699
IEEE80211_DISCARD_MAC
#define IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt,...)
Definition: ieee80211_var.h:1101
IEEE80211_FHT_HTCOMPAT
#define IEEE80211_FHT_HTCOMPAT
Definition: ieee80211_var.h:711
IEEE80211_FHT_STBC_TX
#define IEEE80211_FHT_STBC_TX
Definition: ieee80211_var.h:713
IEEE80211_DPRINTF
#define IEEE80211_DPRINTF(_vap, _m, _fmt,...)
Definition: ieee80211_var.h:1092
IEEE80211_MSG_INPUT
#define IEEE80211_MSG_INPUT
Definition: ieee80211_var.h:982
IEEE80211_FHT_AMPDU_RX
#define IEEE80211_FHT_AMPDU_RX
Definition: ieee80211_var.h:704
ieee80211_beacon_notify
static __inline void ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
Definition: ieee80211_var.h:907
IEEE80211_MSG_ACTION
#define IEEE80211_MSG_ACTION
Definition: ieee80211_var.h:1005
IEEE80211_MSG_ASSOC
#define IEEE80211_MSG_ASSOC
Definition: ieee80211_var.h:986
IEEE80211_FHT_SHORTGI20
#define IEEE80211_FHT_SHORTGI20
Definition: ieee80211_var.h:709
IEEE80211_FHT_RIFS
#define IEEE80211_FHT_RIFS
Definition: ieee80211_var.h:712
IEEE80211_FHT_STBC_RX
#define IEEE80211_FHT_STBC_RX
Definition: ieee80211_var.h:714
ieee80211_action_ba_addbaresponse
Definition: ieee80211.h:460
ieee80211_action_ht_mimopowersave
Definition: ieee80211.h:408
ieee80211_action_ht_mimopowersave::am_control
uint8_t am_control
Definition: ieee80211.h:410
ieee80211_beacon_offsets
Definition: ieee80211_proto.h:378
ieee80211_beacon_offsets::bo_htinfo
uint8_t * bo_htinfo
Definition: ieee80211_proto.h:389
ieee80211_bpf_params
Definition: ieee80211_freebsd.h:643
ieee80211_bpf_params::ibp_try0
uint8_t ibp_try0
Definition: ieee80211_freebsd.h:656
ieee80211_bpf_params::ibp_pri
uint8_t ibp_pri
Definition: ieee80211_freebsd.h:655
ieee80211_bpf_params::ibp_power
uint8_t ibp_power
Definition: ieee80211_freebsd.h:658
ieee80211_bpf_params::ibp_rate0
uint8_t ibp_rate0
Definition: ieee80211_freebsd.h:657
ieee80211_channel
Definition: _ieee80211.h:140
ieee80211_channel::ic_flags
uint32_t ic_flags
Definition: _ieee80211.h:141
ieee80211_channel::ic_freq
uint16_t ic_freq
Definition: _ieee80211.h:142
ieee80211_channel::ic_ieee
uint8_t ic_ieee
Definition: _ieee80211.h:143
ieee80211_frame_bar
Definition: ieee80211.h:540
ieee80211_frame_bar::i_ctl
uint16_t i_ctl
Definition: ieee80211.h:545
ieee80211_frame_bar::i_ta
uint8_t i_ta[IEEE80211_ADDR_LEN]
Definition: ieee80211.h:544
ieee80211_frame_bar::i_ra
uint8_t i_ra[IEEE80211_ADDR_LEN]
Definition: ieee80211.h:543
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uint16_t i_seq
Definition: ieee80211.h:546
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uint8_t i_fc[2]
Definition: ieee80211.h:541
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Definition: ieee80211.h:67
ieee80211_htrateset
Definition: _ieee80211.h:398
ieee80211_htrateset::rs_nrates
uint8_t rs_nrates
Definition: _ieee80211.h:399
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uint8_t rs_rates[IEEE80211_HTRATE_MAXSIZE]
Definition: _ieee80211.h:400
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Definition: ieee80211.h:611
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uint32_t hc_txbf
Definition: ieee80211.h:618
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uint8_t hc_mcsset[16]
Definition: ieee80211.h:616
ieee80211_ie_htinfo
Definition: ieee80211.h:691
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uint8_t hi_byte1
Definition: ieee80211.h:695
ieee80211_ie_htinfo::hi_byte2
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Definition: ieee80211.h:696
ieee80211_ie_htinfo::hi_ctrlchannel
uint8_t hi_ctrlchannel
Definition: ieee80211.h:694
ieee80211_ie_htinfo::hi_basicmcsset
uint8_t hi_basicmcsset[16]
Definition: ieee80211.h:699
ieee80211_ie_htinfo::hi_byte45
uint16_t hi_byte45
Definition: ieee80211.h:698
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Definition: ieee80211_ht.h:186
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uint16_t ht20_rate_800ns
Definition: ieee80211_ht.h:187
ieee80211_mcs_rates::ht20_rate_400ns
uint16_t ht20_rate_400ns
Definition: ieee80211_ht.h:188
ieee80211_mcs_rates::ht40_rate_400ns
uint16_t ht40_rate_400ns
Definition: ieee80211_ht.h:190
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uint16_t ht40_rate_800ns
Definition: ieee80211_ht.h:189
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Definition: ieee80211_node.h:119
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uint8_t ni_htparam
Definition: ieee80211_node.h:222
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Definition: ieee80211_node.h:126
ieee80211_node::ni_htopmode
uint8_t ni_htopmode
Definition: ieee80211_node.h:225
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struct ieee80211com * ni_ic
Definition: ieee80211_node.h:121
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uint8_t ni_macaddr[IEEE80211_ADDR_LEN]
Definition: ieee80211_node.h:187
ieee80211_node::ni_ht2ndchan
uint8_t ni_ht2ndchan
Definition: ieee80211_node.h:224
ieee80211_node::ni_htrates
struct ieee80211_htrateset ni_htrates
Definition: ieee80211_node.h:228
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uint8_t ni_vht_chanwidth
Definition: ieee80211_node.h:239
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struct ieee80211_rx_ampdu ni_rx_ampdu[WME_NUM_TID]
Definition: ieee80211_node.h:230
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struct ieee80211vap * ni_vap
Definition: ieee80211_node.h:120
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const struct ieee80211_txparam * ni_txparms
Definition: ieee80211_node.h:163
ieee80211_node::ni_htcap
uint16_t ni_htcap
Definition: ieee80211_node.h:221
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struct ieee80211_tx_ampdu ni_tx_ampdu[WME_NUM_TID]
Definition: ieee80211_node.h:229
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uint8_t ni_htctlchan
Definition: ieee80211_node.h:223
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Definition: ieee80211_node.h:226
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Definition: ieee80211_node.h:227
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ieee80211_seq ni_txseqs[IEEE80211_TID_SIZE]
Definition: ieee80211_node.h:168
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struct ieee80211_channel * ni_chan
Definition: ieee80211_node.h:200
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Definition: ieee80211_node.h:152
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Definition: ieee80211_node.h:233
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Definition: ieee80211.h:78
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uint8_t i_fc[2]
Definition: ieee80211.h:79
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uint8_t i_addr1[IEEE80211_ADDR_LEN]
Definition: ieee80211.h:81
ieee80211_qosframe::i_seq
uint8_t i_seq[2]
Definition: ieee80211.h:84
ieee80211_rateset
Definition: _ieee80211.h:385
ieee80211_rx_ampdu
Definition: ieee80211_ht.h:165
ieee80211_rx_ampdu::rxa_start
ieee80211_seq rxa_start
Definition: ieee80211_ht.h:170
ieee80211_rx_ampdu::rxa_nframes
int rxa_nframes
Definition: ieee80211_ht.h:173
ieee80211_rx_ampdu::rxa_flags
int rxa_flags
Definition: ieee80211_ht.h:166
ieee80211_rx_ampdu::rxa_wnd
uint16_t rxa_wnd
Definition: ieee80211_ht.h:171
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int rxa_qbytes
Definition: ieee80211_ht.h:167
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Definition: ieee80211_ht.h:168
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int rxa_age
Definition: ieee80211_ht.h:172
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struct mbufq rxa_mq[IEEE80211_AGGR_BAWMAX]
Definition: ieee80211_ht.h:174
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Definition: _ieee80211.h:592
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uint32_t c_pktflags
Definition: _ieee80211.h:594
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Definition: ieee80211_ioctl.h:203
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Definition: ieee80211_ioctl.h:193
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Definition: ieee80211_ioctl.h:201
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uint32_t is_ampdu_rx_age
Definition: ieee80211_ioctl.h:212
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Definition: ieee80211_ioctl.h:196
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Definition: ieee80211_ioctl.h:218
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Definition: ieee80211_ioctl.h:213
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Definition: ieee80211_ioctl.h:220
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uint32_t is_amsdu_decap
Definition: ieee80211_ioctl.h:194
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uint32_t is_amsdu_tooshort
Definition: ieee80211_ioctl.h:192
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Definition: ieee80211_ioctl.h:251
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Definition: ieee80211_ioctl.h:198
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Definition: ieee80211_ioctl.h:253
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uint32_t is_ampdu_stop
Definition: ieee80211_ioctl.h:219
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uint32_t is_ampdu_rx_copy
Definition: ieee80211_ioctl.h:202
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uint32_t is_rx_rstoobig
Definition: ieee80211_ioctl.h:114
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Definition: ieee80211_ioctl.h:216
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Definition: ieee80211_ioctl.h:150
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Definition: ieee80211_ioctl.h:197
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Definition: ieee80211_ioctl.h:252
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Definition: ieee80211_ioctl.h:221
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Definition: ieee80211_ioctl.h:214
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Definition: ieee80211_ioctl.h:199
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Definition: ieee80211_ioctl.h:103
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Definition: ieee80211_ht.h:42
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Definition: ieee80211_ht.h:56
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Definition: ieee80211_ht.h:59
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Definition: ieee80211_ht.h:64
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Definition: ieee80211_ht.h:63
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Definition: ieee80211_ht.h:55
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Definition: ieee80211_ht.h:65
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int txa_avgpps
Definition: ieee80211_ht.h:57
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Definition: ieee80211_ht.h:62
ieee80211_tx_ampdu::txa_start
ieee80211_seq txa_start
Definition: ieee80211_ht.h:60
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struct ieee80211_node * txa_ni
Definition: ieee80211_ht.h:43
ieee80211_tx_ampdu::txa_flags
u_short txa_flags
Definition: ieee80211_ht.h:44
ieee80211_tx_ampdu::txa_seqpending
ieee80211_seq txa_seqpending
Definition: ieee80211_ht.h:61
ieee80211_tx_ampdu::txa_token
uint8_t txa_token
Definition: ieee80211_ht.h:54
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Definition: ieee80211_ht.h:53
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Definition: _ieee80211.h:417
ieee80211_txparam::mgmtrate
uint8_t mgmtrate
Definition: _ieee80211.h:415
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struct ieee80211_channel * ic_bsschan
Definition: ieee80211_var.h:210
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enum ieee80211_protmode ic_htprotmode
Definition: ieee80211_var.h:238
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int(* ic_addba_request)(struct ieee80211_node *, struct ieee80211_tx_ampdu *, int dialogtoken, int baparamset, int batimeout)
Definition: ieee80211_var.h:356
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uint32_t ic_htcaps
Definition: ieee80211_var.h:166
ieee80211com::ic_ampdu_rx_stop
void(* ic_ampdu_rx_stop)(struct ieee80211_node *, struct ieee80211_rx_ampdu *)
Definition: ieee80211_var.h:374
ieee80211com::ic_ampdu_rx_start
int(* ic_ampdu_rx_start)(struct ieee80211_node *, struct ieee80211_rx_ampdu *, int baparamset, int batimeout, int baseqctl)
Definition: ieee80211_var.h:371
ieee80211com::ic_curhtprotmode
uint8_t ic_curhtprotmode
Definition: ieee80211_var.h:239
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void(* ic_bar_response)(struct ieee80211_node *, struct ieee80211_tx_ampdu *, int status)
Definition: ieee80211_var.h:368
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struct ieee80211_htrateset ic_sup_htrates
Definition: ieee80211_var.h:181
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uint8_t ic_rxstream
Definition: ieee80211_var.h:241
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int(* ic_recv_action)(struct ieee80211_node *, const struct ieee80211_frame *, const uint8_t *frm, const uint8_t *efrm)
Definition: ieee80211_var.h:347
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uint8_t ic_modecaps[IEEE80211_MODE_BYTES]
Definition: ieee80211_var.h:170
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int(* ic_ampdu_enable)(struct ieee80211_node *, struct ieee80211_tx_ampdu *)
Definition: ieee80211_var.h:353
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int(* ic_send_action)(struct ieee80211_node *, int category, int action, void *)
Definition: ieee80211_var.h:350
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void(* ic_addba_stop)(struct ieee80211_node *, struct ieee80211_tx_ampdu *)
Definition: ieee80211_var.h:363
ieee80211com::ic_addba_response_timeout
void(* ic_addba_response_timeout)(struct ieee80211_node *, struct ieee80211_tx_ampdu *)
Definition: ieee80211_var.h:365
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Definition: ieee80211_var.h:242
ieee80211com::ic_addba_response
int(* ic_addba_response)(struct ieee80211_node *, struct ieee80211_tx_ampdu *, int status, int baparamset, int batimeout)
Definition: ieee80211_var.h:360
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struct ieee80211com * iv_ic
Definition: ieee80211_var.h:399
ieee80211vap::iv_curhtprotmode
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Definition: ieee80211_var.h:579
ieee80211vap::iv_bss
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Definition: ieee80211_var.h:487
ieee80211vap::iv_opmode
enum ieee80211_opmode iv_opmode
Definition: ieee80211_var.h:414
ieee80211vap::iv_htcaps
uint32_t iv_htcaps
Definition: ieee80211_var.h:411
ieee80211vap::iv_myaddr
uint8_t iv_myaddr[IEEE80211_ADDR_LEN]
Definition: ieee80211_var.h:401
ieee80211vap::iv_flags_ht
uint32_t iv_flags_ht
Definition: ieee80211_var.h:407
ieee80211vap::iv_sta_assoc
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Definition: ieee80211_var.h:470
ieee80211vap::iv_stats
struct ieee80211_stats iv_stats
Definition: ieee80211_var.h:403
ieee80211vap::iv_flags_vht
uint32_t iv_flags_vht
Definition: ieee80211_var.h:428
ieee80211vap::iv_htextcaps
uint32_t iv_htextcaps
Definition: ieee80211_var.h:412
ieee80211vap::iv_vhtcaps
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Definition: ieee80211_var.h:429
ieee80211vap::iv_flags_ext
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Definition: ieee80211_var.h:406
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enum ieee80211_state iv_state
Definition: ieee80211_var.h:415
ieee80211vap::iv_ht40_sta_assoc
uint16_t iv_ht40_sta_assoc
Definition: ieee80211_var.h:584
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u_int iv_ampdu_mintraffic[WME_NUM_AC]
Definition: ieee80211_var.h:465
ieee80211vap::iv_htprotmode
enum ieee80211_protmode iv_htprotmode
Definition: ieee80211_var.h:578
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void(* iv_deliver_data)(struct ieee80211vap *, struct ieee80211_node *, struct mbuf *)
Definition: ieee80211_var.h:544
ieee80211vap::iv_ht_sta_assoc
uint16_t iv_ht_sta_assoc
Definition: ieee80211_var.h:583