Index: head/sys/net80211/_ieee80211.h =================================================================== --- head/sys/net80211/_ieee80211.h (revision 361824) +++ head/sys/net80211/_ieee80211.h (revision 361825) @@ -1,627 +1,630 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2001 Atsushi Onoe * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _NET80211__IEEE80211_H_ #define _NET80211__IEEE80211_H_ /* * 802.11 implementation definitions. * * NB: this file is used by applications. */ /* * PHY type; mostly used to identify FH phys. */ enum ieee80211_phytype { IEEE80211_T_DS, /* direct sequence spread spectrum */ IEEE80211_T_FH, /* frequency hopping */ IEEE80211_T_OFDM, /* frequency division multiplexing */ IEEE80211_T_TURBO, /* high rate OFDM, aka turbo mode */ IEEE80211_T_HT, /* high throughput */ IEEE80211_T_OFDM_HALF, /* 1/2 rate OFDM */ IEEE80211_T_OFDM_QUARTER, /* 1/4 rate OFDM */ IEEE80211_T_VHT, /* VHT PHY */ }; #define IEEE80211_T_CCK IEEE80211_T_DS /* more common nomenclature */ /* * PHY mode; this is not really a mode as multi-mode devices * have multiple PHY's. Mode is mostly used as a shorthand * for constraining which channels to consider in setting up * operation. Modes used to be used more extensively when * channels were identified as IEEE channel numbers. */ enum ieee80211_phymode { IEEE80211_MODE_AUTO = 0, /* autoselect */ IEEE80211_MODE_11A = 1, /* 5GHz, OFDM */ IEEE80211_MODE_11B = 2, /* 2GHz, CCK */ IEEE80211_MODE_11G = 3, /* 2GHz, OFDM */ IEEE80211_MODE_FH = 4, /* 2GHz, GFSK */ IEEE80211_MODE_TURBO_A = 5, /* 5GHz, OFDM, 2x clock */ IEEE80211_MODE_TURBO_G = 6, /* 2GHz, OFDM, 2x clock */ IEEE80211_MODE_STURBO_A = 7, /* 5GHz, OFDM, 2x clock, static */ IEEE80211_MODE_11NA = 8, /* 5GHz, w/ HT */ IEEE80211_MODE_11NG = 9, /* 2GHz, w/ HT */ IEEE80211_MODE_HALF = 10, /* OFDM, 1/2x clock */ IEEE80211_MODE_QUARTER = 11, /* OFDM, 1/4x clock */ IEEE80211_MODE_VHT_2GHZ = 12, /* 2GHz, VHT */ IEEE80211_MODE_VHT_5GHZ = 13, /* 5GHz, VHT */ }; #define IEEE80211_MODE_MAX (IEEE80211_MODE_VHT_5GHZ+1) #define IEEE80211_MODE_BYTES howmany(IEEE80211_MODE_MAX, NBBY) /* * Operating mode. Devices do not necessarily support * all modes; they indicate which are supported in their * capabilities. */ enum ieee80211_opmode { IEEE80211_M_IBSS = 0, /* IBSS (adhoc) station */ IEEE80211_M_STA = 1, /* infrastructure station */ IEEE80211_M_WDS = 2, /* WDS link */ IEEE80211_M_AHDEMO = 3, /* Old lucent compatible adhoc demo */ IEEE80211_M_HOSTAP = 4, /* Software Access Point */ IEEE80211_M_MONITOR = 5, /* Monitor mode */ IEEE80211_M_MBSS = 6, /* MBSS (Mesh Point) link */ }; #define IEEE80211_OPMODE_MAX (IEEE80211_M_MBSS+1) /* * 802.11g/802.11n protection mode. */ enum ieee80211_protmode { IEEE80211_PROT_NONE = 0, /* no protection */ IEEE80211_PROT_CTSONLY = 1, /* CTS to self */ IEEE80211_PROT_RTSCTS = 2, /* RTS-CTS */ }; /* * Authentication mode. The open and shared key authentication * modes are implemented within the 802.11 layer. 802.1x and * WPA/802.11i are implemented in user mode by setting the * 802.11 layer into IEEE80211_AUTH_8021X and deferring * authentication to user space programs. */ enum ieee80211_authmode { IEEE80211_AUTH_NONE = 0, IEEE80211_AUTH_OPEN = 1, /* open */ IEEE80211_AUTH_SHARED = 2, /* shared-key */ IEEE80211_AUTH_8021X = 3, /* 802.1x */ IEEE80211_AUTH_AUTO = 4, /* auto-select/accept */ /* NB: these are used only for ioctls */ IEEE80211_AUTH_WPA = 5, /* WPA/RSN w/ 802.1x/PSK */ }; /* * Roaming mode is effectively who controls the operation * of the 802.11 state machine when operating as a station. * State transitions are controlled either by the driver * (typically when management frames are processed by the * hardware/firmware), the host (auto/normal operation of * the 802.11 layer), or explicitly through ioctl requests * when applications like wpa_supplicant want control. */ enum ieee80211_roamingmode { IEEE80211_ROAMING_DEVICE= 0, /* driver/hardware control */ IEEE80211_ROAMING_AUTO = 1, /* 802.11 layer control */ IEEE80211_ROAMING_MANUAL= 2, /* application control */ }; /* * Channels are specified by frequency and attributes. */ struct ieee80211_channel { uint32_t ic_flags; /* see below */ uint16_t ic_freq; /* primary centre frequency in MHz */ uint8_t ic_ieee; /* IEEE channel number */ int8_t ic_maxregpower; /* maximum regulatory tx power in dBm */ int8_t ic_maxpower; /* maximum tx power in .5 dBm */ int8_t ic_minpower; /* minimum tx power in .5 dBm */ uint8_t ic_state; /* dynamic state */ uint8_t ic_extieee; /* HT40 extension channel number */ int8_t ic_maxantgain; /* maximum antenna gain in .5 dBm */ uint8_t ic_pad; uint16_t ic_devdata; /* opaque device/driver data */ uint8_t ic_vht_ch_freq1; /* VHT primary freq1 IEEE value */ uint8_t ic_vht_ch_freq2; /* VHT secondary 80MHz freq2 IEEE value */ uint16_t ic_freq2; /* VHT secondary 80MHz freq2 MHz */ }; /* * Note: for VHT operation we will need significantly more than * IEEE80211_CHAN_MAX channels because of the combinations of * VHT20, VHT40, VHT80, VHT80+80 and VHT160. */ #define IEEE80211_CHAN_MAX 1024 #define IEEE80211_CHAN_BYTES howmany(IEEE80211_CHAN_MAX, NBBY) #define IEEE80211_CHAN_ANY 0xffff /* token for ``any channel'' */ #define IEEE80211_CHAN_ANYC \ ((struct ieee80211_channel *) IEEE80211_CHAN_ANY) /* channel attributes */ #define IEEE80211_CHAN_PRIV0 0x00000001 /* driver private bit 0 */ #define IEEE80211_CHAN_PRIV1 0x00000002 /* driver private bit 1 */ #define IEEE80211_CHAN_PRIV2 0x00000004 /* driver private bit 2 */ #define IEEE80211_CHAN_PRIV3 0x00000008 /* driver private bit 3 */ #define IEEE80211_CHAN_TURBO 0x00000010 /* Turbo channel */ #define IEEE80211_CHAN_CCK 0x00000020 /* CCK channel */ #define IEEE80211_CHAN_OFDM 0x00000040 /* OFDM channel */ #define IEEE80211_CHAN_2GHZ 0x00000080 /* 2 GHz spectrum channel. */ #define IEEE80211_CHAN_5GHZ 0x00000100 /* 5 GHz spectrum channel */ #define IEEE80211_CHAN_PASSIVE 0x00000200 /* Only passive scan allowed */ #define IEEE80211_CHAN_DYN 0x00000400 /* Dynamic CCK-OFDM channel */ #define IEEE80211_CHAN_GFSK 0x00000800 /* GFSK channel (FHSS PHY) */ #define IEEE80211_CHAN_GSM 0x00001000 /* 900 MHz spectrum channel */ #define IEEE80211_CHAN_STURBO 0x00002000 /* 11a static turbo channel only */ #define IEEE80211_CHAN_HALF 0x00004000 /* Half rate channel */ #define IEEE80211_CHAN_QUARTER 0x00008000 /* Quarter rate channel */ #define IEEE80211_CHAN_HT20 0x00010000 /* HT 20 channel */ #define IEEE80211_CHAN_HT40U 0x00020000 /* HT 40 channel w/ ext above */ #define IEEE80211_CHAN_HT40D 0x00040000 /* HT 40 channel w/ ext below */ #define IEEE80211_CHAN_DFS 0x00080000 /* DFS required */ #define IEEE80211_CHAN_4MSXMIT 0x00100000 /* 4ms limit on frame length */ #define IEEE80211_CHAN_NOADHOC 0x00200000 /* adhoc mode not allowed */ #define IEEE80211_CHAN_NOHOSTAP 0x00400000 /* hostap mode not allowed */ #define IEEE80211_CHAN_11D 0x00800000 /* 802.11d required */ #define IEEE80211_CHAN_VHT20 0x01000000 /* VHT20 channel */ #define IEEE80211_CHAN_VHT40U 0x02000000 /* VHT40 channel, ext above */ #define IEEE80211_CHAN_VHT40D 0x04000000 /* VHT40 channel, ext below */ #define IEEE80211_CHAN_VHT80 0x08000000 /* VHT80 channel */ #define IEEE80211_CHAN_VHT80_80 0x10000000 /* VHT80+80 channel */ #define IEEE80211_CHAN_VHT160 0x20000000 /* VHT160 channel */ /* XXX note: 0x80000000 is used in src/sbin/ifconfig/ifieee80211.c :( */ #define IEEE80211_CHAN_HT40 (IEEE80211_CHAN_HT40U | IEEE80211_CHAN_HT40D) #define IEEE80211_CHAN_HT (IEEE80211_CHAN_HT20 | IEEE80211_CHAN_HT40) #define IEEE80211_CHAN_VHT40 (IEEE80211_CHAN_VHT40U | IEEE80211_CHAN_VHT40D) #define IEEE80211_CHAN_VHT (IEEE80211_CHAN_VHT20 | IEEE80211_CHAN_VHT40 \ | IEEE80211_CHAN_VHT80 | IEEE80211_CHAN_VHT80_80 \ | IEEE80211_CHAN_VHT160) #define IEEE80211_CHAN_BITS \ "\20\1PRIV0\2PRIV2\3PRIV3\4PRIV4\5TURBO\6CCK\7OFDM\0102GHZ\0115GHZ" \ "\12PASSIVE\13DYN\14GFSK\15GSM\16STURBO\17HALF\20QUARTER\21HT20" \ "\22HT40U\23HT40D\24DFS\0254MSXMIT\26NOADHOC\27NOHOSTAP\03011D" \ "\031VHT20\032VHT40U\033VHT40D\034VHT80\035VHT80_80\036VHT160" /* * Useful combinations of channel characteristics. */ #define IEEE80211_CHAN_FHSS \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK) #define IEEE80211_CHAN_A \ (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM) #define IEEE80211_CHAN_B \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK) #define IEEE80211_CHAN_PUREG \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM) #define IEEE80211_CHAN_G \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN) #define IEEE80211_CHAN_108A \ (IEEE80211_CHAN_A | IEEE80211_CHAN_TURBO) #define IEEE80211_CHAN_108G \ (IEEE80211_CHAN_PUREG | IEEE80211_CHAN_TURBO) #define IEEE80211_CHAN_ST \ (IEEE80211_CHAN_108A | IEEE80211_CHAN_STURBO) #define IEEE80211_CHAN_ALL \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_GFSK | \ IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN | \ IEEE80211_CHAN_HALF | IEEE80211_CHAN_QUARTER | \ IEEE80211_CHAN_HT | IEEE80211_CHAN_VHT) #define IEEE80211_CHAN_ALLTURBO \ (IEEE80211_CHAN_ALL | IEEE80211_CHAN_TURBO | IEEE80211_CHAN_STURBO) #define IEEE80211_IS_CHAN_FHSS(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS) #define IEEE80211_IS_CHAN_A(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A) #define IEEE80211_IS_CHAN_B(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B) #define IEEE80211_IS_CHAN_PUREG(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG) #define IEEE80211_IS_CHAN_G(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G) #define IEEE80211_IS_CHAN_ANYG(_c) \ (IEEE80211_IS_CHAN_PUREG(_c) || IEEE80211_IS_CHAN_G(_c)) #define IEEE80211_IS_CHAN_ST(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_ST) == IEEE80211_CHAN_ST) #define IEEE80211_IS_CHAN_108A(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_108A) == IEEE80211_CHAN_108A) #define IEEE80211_IS_CHAN_108G(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_108G) == IEEE80211_CHAN_108G) #define IEEE80211_IS_CHAN_2GHZ(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0) #define IEEE80211_IS_CHAN_5GHZ(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0) #define IEEE80211_IS_CHAN_PASSIVE(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_PASSIVE) != 0) #define IEEE80211_IS_CHAN_OFDM(_c) \ (((_c)->ic_flags & (IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN)) != 0) #define IEEE80211_IS_CHAN_CCK(_c) \ (((_c)->ic_flags & (IEEE80211_CHAN_CCK | IEEE80211_CHAN_DYN)) != 0) #define IEEE80211_IS_CHAN_DYN(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_DYN) == IEEE80211_CHAN_DYN) #define IEEE80211_IS_CHAN_GFSK(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_GFSK) != 0) #define IEEE80211_IS_CHAN_TURBO(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_TURBO) != 0) #define IEEE80211_IS_CHAN_STURBO(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_STURBO) != 0) #define IEEE80211_IS_CHAN_DTURBO(_c) \ (((_c)->ic_flags & \ (IEEE80211_CHAN_TURBO | IEEE80211_CHAN_STURBO)) == IEEE80211_CHAN_TURBO) #define IEEE80211_IS_CHAN_HALF(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_HALF) != 0) #define IEEE80211_IS_CHAN_QUARTER(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_QUARTER) != 0) #define IEEE80211_IS_CHAN_FULL(_c) \ (((_c)->ic_flags & (IEEE80211_CHAN_QUARTER | IEEE80211_CHAN_HALF)) == 0) #define IEEE80211_IS_CHAN_GSM(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_GSM) != 0) #define IEEE80211_IS_CHAN_HT(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_HT) != 0) #define IEEE80211_IS_CHAN_HT20(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_HT20) != 0) #define IEEE80211_IS_CHAN_HT40(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_HT40) != 0) #define IEEE80211_IS_CHAN_HT40U(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_HT40U) != 0) #define IEEE80211_IS_CHAN_HT40D(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_HT40D) != 0) #define IEEE80211_IS_CHAN_HTA(_c) \ (IEEE80211_IS_CHAN_5GHZ(_c) && \ ((_c)->ic_flags & IEEE80211_CHAN_HT) != 0) #define IEEE80211_IS_CHAN_HTG(_c) \ (IEEE80211_IS_CHAN_2GHZ(_c) && \ ((_c)->ic_flags & IEEE80211_CHAN_HT) != 0) #define IEEE80211_IS_CHAN_DFS(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_DFS) != 0) #define IEEE80211_IS_CHAN_NOADHOC(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_NOADHOC) != 0) #define IEEE80211_IS_CHAN_NOHOSTAP(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_NOHOSTAP) != 0) #define IEEE80211_IS_CHAN_11D(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_11D) != 0) #define IEEE80211_IS_CHAN_VHT(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_VHT) != 0) #define IEEE80211_IS_CHAN_VHT_2GHZ(_c) \ (IEEE80211_IS_CHAN_2GHZ(_c) && \ ((_c)->ic_flags & IEEE80211_CHAN_VHT) != 0) #define IEEE80211_IS_CHAN_VHT_5GHZ(_c) \ (IEEE80211_IS_CHAN_5GHZ(_c) && \ ((_c)->ic_flags & IEEE80211_CHAN_VHT) != 0) #define IEEE80211_IS_CHAN_VHT20(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_VHT20) != 0) #define IEEE80211_IS_CHAN_VHT40(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_VHT40) != 0) #define IEEE80211_IS_CHAN_VHT40U(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_VHT40U) != 0) #define IEEE80211_IS_CHAN_VHT40D(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_VHT40D) != 0) #define IEEE80211_IS_CHAN_VHTA(_c) \ (IEEE80211_IS_CHAN_5GHZ(_c) && \ ((_c)->ic_flags & IEEE80211_CHAN_VHT) != 0) #define IEEE80211_IS_CHAN_VHTG(_c) \ (IEEE80211_IS_CHAN_2GHZ(_c) && \ ((_c)->ic_flags & IEEE80211_CHAN_VHT) != 0) #define IEEE80211_IS_CHAN_VHT80(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_VHT80) != 0) #define IEEE80211_IS_CHAN_VHT80_80(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_VHT80_80) != 0) #define IEEE80211_IS_CHAN_VHT160(_c) \ (((_c)->ic_flags & IEEE80211_CHAN_VHT160) != 0) #define IEEE80211_CHAN2IEEE(_c) (_c)->ic_ieee /* dynamic state */ #define IEEE80211_CHANSTATE_RADAR 0x01 /* radar detected */ #define IEEE80211_CHANSTATE_CACDONE 0x02 /* CAC completed */ #define IEEE80211_CHANSTATE_CWINT 0x04 /* interference detected */ #define IEEE80211_CHANSTATE_NORADAR 0x10 /* post notify on radar clear */ #define IEEE80211_IS_CHAN_RADAR(_c) \ (((_c)->ic_state & IEEE80211_CHANSTATE_RADAR) != 0) #define IEEE80211_IS_CHAN_CACDONE(_c) \ (((_c)->ic_state & IEEE80211_CHANSTATE_CACDONE) != 0) #define IEEE80211_IS_CHAN_CWINT(_c) \ (((_c)->ic_state & IEEE80211_CHANSTATE_CWINT) != 0) /* ni_chan encoding for FH phy */ #define IEEE80211_FH_CHANMOD 80 #define IEEE80211_FH_CHAN(set,pat) (((set)-1)*IEEE80211_FH_CHANMOD+(pat)) #define IEEE80211_FH_CHANSET(chan) ((chan)/IEEE80211_FH_CHANMOD+1) #define IEEE80211_FH_CHANPAT(chan) ((chan)%IEEE80211_FH_CHANMOD) #define IEEE80211_TID_SIZE (WME_NUM_TID+1) /* WME TID's +1 for non-QoS */ #define IEEE80211_NONQOS_TID WME_NUM_TID /* index for non-QoS sta */ /* * The 802.11 spec says at most 2007 stations may be * associated at once. For most AP's this is way more * than is feasible so we use a default of 128. This * number may be overridden by the driver and/or by * user configuration but may not be less than IEEE80211_AID_MIN. */ #define IEEE80211_AID_DEF 128 #define IEEE80211_AID_MIN 16 /* * 802.11 rate set. */ #define IEEE80211_RATE_SIZE 8 /* 802.11 standard */ #define IEEE80211_RATE_MAXSIZE 15 /* max rates we'll handle */ struct ieee80211_rateset { uint8_t rs_nrates; uint8_t rs_rates[IEEE80211_RATE_MAXSIZE]; }; /* * 802.11n variant of ieee80211_rateset. Instead of * legacy rates the entries are MCS rates. We define * the structure such that it can be used interchangeably * with an ieee80211_rateset (modulo structure size). */ #define IEEE80211_HTRATE_MAXSIZE 77 struct ieee80211_htrateset { uint8_t rs_nrates; uint8_t rs_rates[IEEE80211_HTRATE_MAXSIZE]; }; #define IEEE80211_RATE_MCS 0x80 /* * Per-mode transmit parameters/controls visible to user space. * These can be used to set fixed transmit rate for all operating * modes or on a per-client basis according to the capabilities * of the client (e.g. an 11b client associated to an 11g ap). * * MCS are distinguished from legacy rates by or'ing in 0x80. */ struct ieee80211_txparam { uint8_t ucastrate; /* ucast data rate (legacy/MCS|0x80) */ uint8_t mgmtrate; /* mgmt frame rate (legacy/MCS|0x80) */ uint8_t mcastrate; /* multicast rate (legacy/MCS|0x80) */ uint8_t maxretry; /* max unicast data retry count */ }; /* * Per-mode roaming state visible to user space. There are two * thresholds that control whether roaming is considered; when * either is exceeded the 802.11 layer will check the scan cache * for another AP. If the cache is stale then a scan may be * triggered. */ struct ieee80211_roamparam { int8_t rssi; /* rssi thresh (.5 dBm) */ uint8_t rate; /* tx rate thresh (.5 Mb/s or MCS) */ uint16_t pad; /* reserve */ }; /* * Regulatory Information. */ struct ieee80211_regdomain { uint16_t regdomain; /* SKU */ uint16_t country; /* ISO country code */ uint8_t location; /* I (indoor), O (outdoor), other */ uint8_t ecm; /* Extended Channel Mode */ char isocc[2]; /* country code string */ short pad[2]; }; /* * MIMO antenna/radio state. */ #define IEEE80211_MAX_CHAINS 4 /* * This is the number of sub-channels for a channel. * 0 - pri20 * 1 - sec20 (HT40, VHT40) * 2 - sec40 (VHT80) * 3 - sec80 (VHT80+80, VHT160) */ #define IEEE80211_MAX_CHAIN_PRISEC 4 #define IEEE80211_MAX_EVM_DWORDS 16 /* 16 pilots, 4 chains */ #define IEEE80211_MAX_EVM_PILOTS 16 /* 468 subcarriers, 16 pilots */ struct ieee80211_mimo_chan_info { int8_t rssi[IEEE80211_MAX_CHAIN_PRISEC]; int8_t noise[IEEE80211_MAX_CHAIN_PRISEC]; }; struct ieee80211_mimo_info { struct ieee80211_mimo_chan_info ch[IEEE80211_MAX_CHAINS]; uint32_t evm[IEEE80211_MAX_EVM_DWORDS]; }; /* * ic_caps/iv_caps: device driver capabilities */ /* 0x2e available */ #define IEEE80211_C_STA 0x00000001 /* CAPABILITY: STA available */ #define IEEE80211_C_8023ENCAP 0x00000002 /* CAPABILITY: 802.3 encap */ #define IEEE80211_C_FF 0x00000040 /* CAPABILITY: ATH FF avail */ #define IEEE80211_C_TURBOP 0x00000080 /* CAPABILITY: ATH Turbo avail*/ #define IEEE80211_C_IBSS 0x00000100 /* CAPABILITY: IBSS available */ #define IEEE80211_C_PMGT 0x00000200 /* CAPABILITY: Power mgmt */ #define IEEE80211_C_HOSTAP 0x00000400 /* CAPABILITY: HOSTAP avail */ #define IEEE80211_C_AHDEMO 0x00000800 /* CAPABILITY: Old Adhoc Demo */ #define IEEE80211_C_SWRETRY 0x00001000 /* CAPABILITY: sw tx retry */ #define IEEE80211_C_TXPMGT 0x00002000 /* CAPABILITY: tx power mgmt */ #define IEEE80211_C_SHSLOT 0x00004000 /* CAPABILITY: short slottime */ #define IEEE80211_C_SHPREAMBLE 0x00008000 /* CAPABILITY: short preamble */ #define IEEE80211_C_MONITOR 0x00010000 /* CAPABILITY: monitor mode */ #define IEEE80211_C_DFS 0x00020000 /* CAPABILITY: DFS/radar avail*/ #define IEEE80211_C_MBSS 0x00040000 /* CAPABILITY: MBSS available */ #define IEEE80211_C_SWSLEEP 0x00080000 /* CAPABILITY: do sleep here */ #define IEEE80211_C_SWAMSDUTX 0x00100000 /* CAPABILITY: software A-MSDU TX */ /* 0x7c0000 available */ #define IEEE80211_C_WPA1 0x00800000 /* CAPABILITY: WPA1 avail */ #define IEEE80211_C_WPA2 0x01000000 /* CAPABILITY: WPA2 avail */ #define IEEE80211_C_WPA 0x01800000 /* CAPABILITY: WPA1+WPA2 avail*/ #define IEEE80211_C_BURST 0x02000000 /* CAPABILITY: frame bursting */ #define IEEE80211_C_WME 0x04000000 /* CAPABILITY: WME avail */ #define IEEE80211_C_WDS 0x08000000 /* CAPABILITY: 4-addr support */ /* 0x10000000 reserved */ #define IEEE80211_C_BGSCAN 0x20000000 /* CAPABILITY: bg scanning */ #define IEEE80211_C_TXFRAG 0x40000000 /* CAPABILITY: tx fragments */ #define IEEE80211_C_TDMA 0x80000000 /* CAPABILITY: TDMA avail */ /* XXX protection/barker? */ #define IEEE80211_C_OPMODE \ (IEEE80211_C_STA | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP | \ IEEE80211_C_AHDEMO | IEEE80211_C_MONITOR | IEEE80211_C_WDS | \ IEEE80211_C_TDMA | IEEE80211_C_MBSS) #define IEEE80211_C_BITS \ "\20\1STA\002803ENCAP\7FF\10TURBOP\11IBSS\12PMGT" \ "\13HOSTAP\14AHDEMO\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE" \ "\21MONITOR\22DFS\23MBSS\30WPA1\31WPA2\32BURST\33WME\34WDS\36BGSCAN" \ "\37TXFRAG\40TDMA" /* * ic_htcaps/iv_htcaps: HT-specific device/driver capabilities * * NB: the low 16-bits are the 802.11 definitions, the upper * 16-bits are used to define s/w/driver capabilities. */ #define IEEE80211_HTC_AMPDU 0x00010000 /* CAPABILITY: A-MPDU tx */ #define IEEE80211_HTC_AMSDU 0x00020000 /* CAPABILITY: A-MSDU tx */ /* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */ #define IEEE80211_HTC_HT 0x00040000 /* CAPABILITY: HT operation */ #define IEEE80211_HTC_SMPS 0x00080000 /* CAPABILITY: MIMO power save*/ #define IEEE80211_HTC_RIFS 0x00100000 /* CAPABILITY: RIFS support */ #define IEEE80211_HTC_RXUNEQUAL 0x00200000 /* CAPABILITY: RX unequal MCS */ #define IEEE80211_HTC_RXMCS32 0x00400000 /* CAPABILITY: MCS32 support */ #define IEEE80211_HTC_TXUNEQUAL 0x00800000 /* CAPABILITY: TX unequal MCS */ #define IEEE80211_HTC_TXMCS32 0x01000000 /* CAPABILITY: MCS32 support */ #define IEEE80211_HTC_TXLDPC 0x02000000 /* CAPABILITY: TX using LDPC */ +#define IEEE80211_HTC_RX_AMSDU_AMPDU 0x04000000 /* CAPABILITY: RX A-MSDU in A-MPDU */ +#define IEEE80211_HTC_TX_AMSDU_AMPDU 0x08000000 /* CAPABILITY: TX A-MSDU in A-MPDU */ #define IEEE80211_C_HTCAP_BITS \ "\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \ - "\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS\32TXLDPC" + "\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS\32TXLDPC\33RXAMSDUAMPDU" \ + "\34TXAMSDUAMPDU" /* * RX status notification - which fields are valid. */ #define IEEE80211_R_NF 0x00000001 /* global NF value valid */ #define IEEE80211_R_RSSI 0x00000002 /* global RSSI value valid */ #define IEEE80211_R_C_CHAIN 0x00000004 /* RX chain count valid */ #define IEEE80211_R_C_NF 0x00000008 /* per-chain NF value valid */ #define IEEE80211_R_C_RSSI 0x00000010 /* per-chain RSSI value valid */ #define IEEE80211_R_C_EVM 0x00000020 /* per-chain EVM valid */ #define IEEE80211_R_C_HT40 0x00000040 /* RX'ed packet is 40mhz, pilots 4,5 valid */ #define IEEE80211_R_FREQ 0x00000080 /* Freq value populated, MHz */ #define IEEE80211_R_IEEE 0x00000100 /* IEEE value populated */ #define IEEE80211_R_BAND 0x00000200 /* Frequency band populated */ #define IEEE80211_R_TSF32 0x00004000 /* 32 bit TSF */ #define IEEE80211_R_TSF64 0x00008000 /* 64 bit TSF */ #define IEEE80211_R_TSF_START 0x00010000 /* TSF is sampled at start of frame */ #define IEEE80211_R_TSF_END 0x00020000 /* TSF is sampled at end of frame */ /* * RX status notification - describe the packet. */ #define IEEE80211_RX_F_STBC 0x00000001 #define IEEE80211_RX_F_LDPC 0x00000002 #define IEEE80211_RX_F_AMSDU 0x00000004 /* This is the start of an decap AMSDU list */ #define IEEE80211_RX_F_AMSDU_MORE 0x00000008 /* This is another decap AMSDU frame in the batch */ #define IEEE80211_RX_F_AMPDU 0x00000010 /* This is the start of an decap AMPDU list */ #define IEEE80211_RX_F_AMPDU_MORE 0x00000020 /* This is another decap AMPDU frame in the batch */ #define IEEE80211_RX_F_FAIL_FCSCRC 0x00000040 /* Failed CRC/FCS */ #define IEEE80211_RX_F_FAIL_MIC 0x00000080 /* Failed MIC check */ #define IEEE80211_RX_F_DECRYPTED 0x00000100 /* Hardware decrypted */ #define IEEE80211_RX_F_IV_STRIP 0x00000200 /* Decrypted; IV stripped */ #define IEEE80211_RX_F_MMIC_STRIP 0x00000400 /* Decrypted; MMIC stripped */ #define IEEE80211_RX_F_SHORTGI 0x00000800 /* This is a short-GI frame */ #define IEEE80211_RX_F_CCK 0x00001000 #define IEEE80211_RX_F_OFDM 0x00002000 #define IEEE80211_RX_F_HT 0x00004000 #define IEEE80211_RX_F_VHT 0x00008000 /* Channel width */ #define IEEE80211_RX_FW_20MHZ 1 #define IEEE80211_RX_FW_40MHZ 2 #define IEEE80211_RX_FW_80MHZ 3 /* PHY type */ #define IEEE80211_RX_FP_11B 1 #define IEEE80211_RX_FP_11G 2 #define IEEE80211_RX_FP_11A 3 #define IEEE80211_RX_FP_11NA 4 #define IEEE80211_RX_FP_11NG 5 struct ieee80211_rx_stats { uint32_t r_flags; /* IEEE80211_R_* flags */ uint32_t c_pktflags; /* IEEE80211_RX_F_* flags */ uint64_t c_rx_tsf; /* 32 or 64 bit TSF */ /* All DWORD aligned */ int16_t c_nf_ctl[IEEE80211_MAX_CHAINS]; /* per-chain NF */ int16_t c_nf_ext[IEEE80211_MAX_CHAINS]; /* per-chain NF */ int16_t c_rssi_ctl[IEEE80211_MAX_CHAINS]; /* per-chain RSSI */ int16_t c_rssi_ext[IEEE80211_MAX_CHAINS]; /* per-chain RSSI */ /* 32 bits */ uint8_t c_nf; /* global NF */ uint8_t c_rssi; /* global RSSI */ uint8_t c_chain; /* number of RX chains involved */ uint8_t c_rate; /* legacy; 11n rate code; VHT MCS */ /* 32 bits */ uint16_t c_freq; /* Frequency, MHz */ uint8_t c_ieee; /* Channel */ uint8_t c_width; /* channel width, FW flags above */ /* Force alignment to DWORD */ union { uint8_t evm[IEEE80211_MAX_CHAINS][IEEE80211_MAX_EVM_PILOTS]; /* per-chain, per-pilot EVM values */ uint32_t __aln[8]; } evm; /* 32 bits */ uint8_t c_phytype; /* PHY type, FW flags above */ uint8_t c_vhtnss; /* VHT - number of spatial streams */ uint8_t c_pad2[2]; }; struct ieee80211_rx_params { struct ieee80211_rx_stats params; }; #endif /* _NET80211__IEEE80211_H_ */ Index: head/sys/net80211/ieee80211_ht.c =================================================================== --- head/sys/net80211/ieee80211_ht.c (revision 361824) +++ head/sys/net80211/ieee80211_ht.c (revision 361825) @@ -1,3387 +1,3422 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2007-2008 Sam Leffler, Errno Consulting * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #ifdef __FreeBSD__ __FBSDID("$FreeBSD$"); #endif /* * IEEE 802.11n protocol support. */ #include "opt_inet.h" #include "opt_wlan.h" #include #include #include #include #include #include #include #include #include #include #include #include #include /* define here, used throughout file */ #define MS(_v, _f) (((_v) & _f) >> _f##_S) #define SM(_v, _f) (((_v) << _f##_S) & _f) const struct ieee80211_mcs_rates ieee80211_htrates[IEEE80211_HTRATE_MAXSIZE] = { { 13, 14, 27, 30 }, /* MCS 0 */ { 26, 29, 54, 60 }, /* MCS 1 */ { 39, 43, 81, 90 }, /* MCS 2 */ { 52, 58, 108, 120 }, /* MCS 3 */ { 78, 87, 162, 180 }, /* MCS 4 */ { 104, 116, 216, 240 }, /* MCS 5 */ { 117, 130, 243, 270 }, /* MCS 6 */ { 130, 144, 270, 300 }, /* MCS 7 */ { 26, 29, 54, 60 }, /* MCS 8 */ { 52, 58, 108, 120 }, /* MCS 9 */ { 78, 87, 162, 180 }, /* MCS 10 */ { 104, 116, 216, 240 }, /* MCS 11 */ { 156, 173, 324, 360 }, /* MCS 12 */ { 208, 231, 432, 480 }, /* MCS 13 */ { 234, 260, 486, 540 }, /* MCS 14 */ { 260, 289, 540, 600 }, /* MCS 15 */ { 39, 43, 81, 90 }, /* MCS 16 */ { 78, 87, 162, 180 }, /* MCS 17 */ { 117, 130, 243, 270 }, /* MCS 18 */ { 156, 173, 324, 360 }, /* MCS 19 */ { 234, 260, 486, 540 }, /* MCS 20 */ { 312, 347, 648, 720 }, /* MCS 21 */ { 351, 390, 729, 810 }, /* MCS 22 */ { 390, 433, 810, 900 }, /* MCS 23 */ { 52, 58, 108, 120 }, /* MCS 24 */ { 104, 116, 216, 240 }, /* MCS 25 */ { 156, 173, 324, 360 }, /* MCS 26 */ { 208, 231, 432, 480 }, /* MCS 27 */ { 312, 347, 648, 720 }, /* MCS 28 */ { 416, 462, 864, 960 }, /* MCS 29 */ { 468, 520, 972, 1080 }, /* MCS 30 */ { 520, 578, 1080, 1200 }, /* MCS 31 */ { 0, 0, 12, 13 }, /* MCS 32 */ { 78, 87, 162, 180 }, /* MCS 33 */ { 104, 116, 216, 240 }, /* MCS 34 */ { 130, 144, 270, 300 }, /* MCS 35 */ { 117, 130, 243, 270 }, /* MCS 36 */ { 156, 173, 324, 360 }, /* MCS 37 */ { 195, 217, 405, 450 }, /* MCS 38 */ { 104, 116, 216, 240 }, /* MCS 39 */ { 130, 144, 270, 300 }, /* MCS 40 */ { 130, 144, 270, 300 }, /* MCS 41 */ { 156, 173, 324, 360 }, /* MCS 42 */ { 182, 202, 378, 420 }, /* MCS 43 */ { 182, 202, 378, 420 }, /* MCS 44 */ { 208, 231, 432, 480 }, /* MCS 45 */ { 156, 173, 324, 360 }, /* MCS 46 */ { 195, 217, 405, 450 }, /* MCS 47 */ { 195, 217, 405, 450 }, /* MCS 48 */ { 234, 260, 486, 540 }, /* MCS 49 */ { 273, 303, 567, 630 }, /* MCS 50 */ { 273, 303, 567, 630 }, /* MCS 51 */ { 312, 347, 648, 720 }, /* MCS 52 */ { 130, 144, 270, 300 }, /* MCS 53 */ { 156, 173, 324, 360 }, /* MCS 54 */ { 182, 202, 378, 420 }, /* MCS 55 */ { 156, 173, 324, 360 }, /* MCS 56 */ { 182, 202, 378, 420 }, /* MCS 57 */ { 208, 231, 432, 480 }, /* MCS 58 */ { 234, 260, 486, 540 }, /* MCS 59 */ { 208, 231, 432, 480 }, /* MCS 60 */ { 234, 260, 486, 540 }, /* MCS 61 */ { 260, 289, 540, 600 }, /* MCS 62 */ { 260, 289, 540, 600 }, /* MCS 63 */ { 286, 318, 594, 660 }, /* MCS 64 */ { 195, 217, 405, 450 }, /* MCS 65 */ { 234, 260, 486, 540 }, /* MCS 66 */ { 273, 303, 567, 630 }, /* MCS 67 */ { 234, 260, 486, 540 }, /* MCS 68 */ { 273, 303, 567, 630 }, /* MCS 69 */ { 312, 347, 648, 720 }, /* MCS 70 */ { 351, 390, 729, 810 }, /* MCS 71 */ { 312, 347, 648, 720 }, /* MCS 72 */ { 351, 390, 729, 810 }, /* MCS 73 */ { 390, 433, 810, 900 }, /* MCS 74 */ { 390, 433, 810, 900 }, /* MCS 75 */ { 429, 477, 891, 990 }, /* MCS 76 */ }; static int ieee80211_ampdu_age = -1; /* threshold for ampdu reorder q (ms) */ 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)"); static int ieee80211_recv_bar_ena = 1; SYSCTL_INT(_net_wlan, OID_AUTO, recv_bar, CTLFLAG_RW, &ieee80211_recv_bar_ena, 0, "BAR frame processing (ena/dis)"); static int ieee80211_addba_timeout = -1;/* timeout for ADDBA response */ SYSCTL_PROC(_net_wlan, OID_AUTO, addba_timeout, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, &ieee80211_addba_timeout, 0, ieee80211_sysctl_msecs_ticks, "I", "ADDBA request timeout (ms)"); static int ieee80211_addba_backoff = -1;/* backoff after max ADDBA requests */ SYSCTL_PROC(_net_wlan, OID_AUTO, addba_backoff, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, &ieee80211_addba_backoff, 0, ieee80211_sysctl_msecs_ticks, "I", "ADDBA request backoff (ms)"); static int ieee80211_addba_maxtries = 3;/* max ADDBA requests before backoff */ SYSCTL_INT(_net_wlan, OID_AUTO, addba_maxtries, CTLFLAG_RW, &ieee80211_addba_maxtries, 0, "max ADDBA requests sent before backoff"); static int ieee80211_bar_timeout = -1; /* timeout waiting for BAR response */ static int ieee80211_bar_maxtries = 50;/* max BAR requests before DELBA */ static ieee80211_recv_action_func ht_recv_action_ba_addba_request; static ieee80211_recv_action_func ht_recv_action_ba_addba_response; static ieee80211_recv_action_func ht_recv_action_ba_delba; static ieee80211_recv_action_func ht_recv_action_ht_mimopwrsave; static ieee80211_recv_action_func ht_recv_action_ht_txchwidth; static ieee80211_send_action_func ht_send_action_ba_addba; static ieee80211_send_action_func ht_send_action_ba_delba; static ieee80211_send_action_func ht_send_action_ht_txchwidth; static void ieee80211_ht_init(void) { /* * Setup HT parameters that depends on the clock frequency. */ ieee80211_ampdu_age = msecs_to_ticks(500); ieee80211_addba_timeout = msecs_to_ticks(250); ieee80211_addba_backoff = msecs_to_ticks(10*1000); ieee80211_bar_timeout = msecs_to_ticks(250); /* * Register action frame handlers. */ ieee80211_recv_action_register(IEEE80211_ACTION_CAT_BA, IEEE80211_ACTION_BA_ADDBA_REQUEST, ht_recv_action_ba_addba_request); ieee80211_recv_action_register(IEEE80211_ACTION_CAT_BA, IEEE80211_ACTION_BA_ADDBA_RESPONSE, ht_recv_action_ba_addba_response); ieee80211_recv_action_register(IEEE80211_ACTION_CAT_BA, IEEE80211_ACTION_BA_DELBA, ht_recv_action_ba_delba); ieee80211_recv_action_register(IEEE80211_ACTION_CAT_HT, IEEE80211_ACTION_HT_MIMOPWRSAVE, ht_recv_action_ht_mimopwrsave); ieee80211_recv_action_register(IEEE80211_ACTION_CAT_HT, IEEE80211_ACTION_HT_TXCHWIDTH, ht_recv_action_ht_txchwidth); ieee80211_send_action_register(IEEE80211_ACTION_CAT_BA, IEEE80211_ACTION_BA_ADDBA_REQUEST, ht_send_action_ba_addba); ieee80211_send_action_register(IEEE80211_ACTION_CAT_BA, IEEE80211_ACTION_BA_ADDBA_RESPONSE, ht_send_action_ba_addba); ieee80211_send_action_register(IEEE80211_ACTION_CAT_BA, IEEE80211_ACTION_BA_DELBA, ht_send_action_ba_delba); ieee80211_send_action_register(IEEE80211_ACTION_CAT_HT, IEEE80211_ACTION_HT_TXCHWIDTH, ht_send_action_ht_txchwidth); } SYSINIT(wlan_ht, SI_SUB_DRIVERS, SI_ORDER_FIRST, ieee80211_ht_init, NULL); static int ieee80211_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap); static int ieee80211_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int dialogtoken, int baparamset, int batimeout); static int ieee80211_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int code, int baparamset, int batimeout); static void ieee80211_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap); static void null_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap); static void ieee80211_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int status); static void ampdu_tx_stop(struct ieee80211_tx_ampdu *tap); static void bar_stop_timer(struct ieee80211_tx_ampdu *tap); static int ampdu_rx_start(struct ieee80211_node *, struct ieee80211_rx_ampdu *, int baparamset, int batimeout, int baseqctl); static void ampdu_rx_stop(struct ieee80211_node *, struct ieee80211_rx_ampdu *); void ieee80211_ht_attach(struct ieee80211com *ic) { /* setup default aggregation policy */ ic->ic_recv_action = ieee80211_recv_action; ic->ic_send_action = ieee80211_send_action; ic->ic_ampdu_enable = ieee80211_ampdu_enable; ic->ic_addba_request = ieee80211_addba_request; ic->ic_addba_response = ieee80211_addba_response; ic->ic_addba_response_timeout = null_addba_response_timeout; ic->ic_addba_stop = ieee80211_addba_stop; ic->ic_bar_response = ieee80211_bar_response; ic->ic_ampdu_rx_start = ampdu_rx_start; ic->ic_ampdu_rx_stop = ampdu_rx_stop; ic->ic_htprotmode = IEEE80211_PROT_RTSCTS; ic->ic_curhtprotmode = IEEE80211_HTINFO_OPMODE_PURE; } void ieee80211_ht_detach(struct ieee80211com *ic) { } void ieee80211_ht_vattach(struct ieee80211vap *vap) { /* driver can override defaults */ vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_8K; vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_NA; vap->iv_ampdu_limit = vap->iv_ampdu_rxmax; vap->iv_amsdu_limit = vap->iv_htcaps & IEEE80211_HTCAP_MAXAMSDU; /* tx aggregation traffic thresholds */ vap->iv_ampdu_mintraffic[WME_AC_BK] = 128; vap->iv_ampdu_mintraffic[WME_AC_BE] = 64; vap->iv_ampdu_mintraffic[WME_AC_VO] = 32; vap->iv_ampdu_mintraffic[WME_AC_VI] = 32; if (vap->iv_htcaps & IEEE80211_HTC_HT) { /* * Device is HT capable; enable all HT-related * facilities by default. * XXX these choices may be too aggressive. */ vap->iv_flags_ht |= IEEE80211_FHT_HT | IEEE80211_FHT_HTCOMPAT ; if (vap->iv_htcaps & IEEE80211_HTCAP_SHORTGI20) vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20; /* XXX infer from channel list? */ if (vap->iv_htcaps & IEEE80211_HTCAP_CHWIDTH40) { vap->iv_flags_ht |= IEEE80211_FHT_USEHT40; if (vap->iv_htcaps & IEEE80211_HTCAP_SHORTGI40) vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40; } /* enable RIFS if capable */ if (vap->iv_htcaps & IEEE80211_HTC_RIFS) vap->iv_flags_ht |= IEEE80211_FHT_RIFS; /* NB: A-MPDU and A-MSDU rx are mandated, these are tx only */ vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX; if (vap->iv_htcaps & IEEE80211_HTC_AMPDU) vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX; vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX; if (vap->iv_htcaps & IEEE80211_HTC_AMSDU) vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX; if (vap->iv_htcaps & IEEE80211_HTCAP_TXSTBC) vap->iv_flags_ht |= IEEE80211_FHT_STBC_TX; if (vap->iv_htcaps & IEEE80211_HTCAP_RXSTBC) vap->iv_flags_ht |= IEEE80211_FHT_STBC_RX; if (vap->iv_htcaps & IEEE80211_HTCAP_LDPC) vap->iv_flags_ht |= IEEE80211_FHT_LDPC_RX; if (vap->iv_htcaps & IEEE80211_HTC_TXLDPC) vap->iv_flags_ht |= IEEE80211_FHT_LDPC_TX; } /* NB: disable default legacy WDS, too many issues right now */ if (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY) vap->iv_flags_ht &= ~IEEE80211_FHT_HT; } void ieee80211_ht_vdetach(struct ieee80211vap *vap) { } static int ht_getrate(struct ieee80211com *ic, int index, enum ieee80211_phymode mode, int ratetype) { int mword, rate; mword = ieee80211_rate2media(ic, index | IEEE80211_RATE_MCS, mode); if (IFM_SUBTYPE(mword) != IFM_IEEE80211_MCS) return (0); switch (ratetype) { case 0: rate = ieee80211_htrates[index].ht20_rate_800ns; break; case 1: rate = ieee80211_htrates[index].ht20_rate_400ns; break; case 2: rate = ieee80211_htrates[index].ht40_rate_800ns; break; default: rate = ieee80211_htrates[index].ht40_rate_400ns; break; } return (rate); } static struct printranges { int minmcs; int maxmcs; int txstream; int ratetype; int htcapflags; } ranges[] = { { 0, 7, 1, 0, 0 }, { 8, 15, 2, 0, 0 }, { 16, 23, 3, 0, 0 }, { 24, 31, 4, 0, 0 }, { 32, 0, 1, 2, IEEE80211_HTC_TXMCS32 }, { 33, 38, 2, 0, IEEE80211_HTC_TXUNEQUAL }, { 39, 52, 3, 0, IEEE80211_HTC_TXUNEQUAL }, { 53, 76, 4, 0, IEEE80211_HTC_TXUNEQUAL }, { 0, 0, 0, 0, 0 }, }; static void ht_rateprint(struct ieee80211com *ic, enum ieee80211_phymode mode, int ratetype) { int minrate, maxrate; struct printranges *range; for (range = ranges; range->txstream != 0; range++) { if (ic->ic_txstream < range->txstream) continue; if (range->htcapflags && (ic->ic_htcaps & range->htcapflags) == 0) continue; if (ratetype < range->ratetype) continue; minrate = ht_getrate(ic, range->minmcs, mode, ratetype); maxrate = ht_getrate(ic, range->maxmcs, mode, ratetype); if (range->maxmcs) { ic_printf(ic, "MCS %d-%d: %d%sMbps - %d%sMbps\n", range->minmcs, range->maxmcs, minrate/2, ((minrate & 0x1) != 0 ? ".5" : ""), maxrate/2, ((maxrate & 0x1) != 0 ? ".5" : "")); } else { ic_printf(ic, "MCS %d: %d%sMbps\n", range->minmcs, minrate/2, ((minrate & 0x1) != 0 ? ".5" : "")); } } } static void ht_announce(struct ieee80211com *ic, enum ieee80211_phymode mode) { const char *modestr = ieee80211_phymode_name[mode]; ic_printf(ic, "%s MCS 20MHz\n", modestr); ht_rateprint(ic, mode, 0); if (ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI20) { ic_printf(ic, "%s MCS 20MHz SGI\n", modestr); ht_rateprint(ic, mode, 1); } if (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) { ic_printf(ic, "%s MCS 40MHz:\n", modestr); ht_rateprint(ic, mode, 2); } if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) && (ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI40)) { ic_printf(ic, "%s MCS 40MHz SGI:\n", modestr); ht_rateprint(ic, mode, 3); } } void ieee80211_ht_announce(struct ieee80211com *ic) { if (isset(ic->ic_modecaps, IEEE80211_MODE_11NA) || isset(ic->ic_modecaps, IEEE80211_MODE_11NG)) ic_printf(ic, "%dT%dR\n", ic->ic_txstream, ic->ic_rxstream); if (isset(ic->ic_modecaps, IEEE80211_MODE_11NA)) ht_announce(ic, IEEE80211_MODE_11NA); if (isset(ic->ic_modecaps, IEEE80211_MODE_11NG)) ht_announce(ic, IEEE80211_MODE_11NG); } void ieee80211_init_suphtrates(struct ieee80211com *ic) { #define ADDRATE(x) do { \ htrateset->rs_rates[htrateset->rs_nrates] = x; \ htrateset->rs_nrates++; \ } while (0) struct ieee80211_htrateset *htrateset = &ic->ic_sup_htrates; int i; memset(htrateset, 0, sizeof(struct ieee80211_htrateset)); for (i = 0; i < ic->ic_txstream * 8; i++) ADDRATE(i); if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) && (ic->ic_htcaps & IEEE80211_HTC_TXMCS32)) ADDRATE(32); if (ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL) { if (ic->ic_txstream >= 2) { for (i = 33; i <= 38; i++) ADDRATE(i); } if (ic->ic_txstream >= 3) { for (i = 39; i <= 52; i++) ADDRATE(i); } if (ic->ic_txstream == 4) { for (i = 53; i <= 76; i++) ADDRATE(i); } } #undef ADDRATE } /* * Receive processing. */ /* * Decap the encapsulated A-MSDU frames and dispatch all but * the last for delivery. The last frame is returned for * delivery via the normal path. */ struct mbuf * ieee80211_decap_amsdu(struct ieee80211_node *ni, struct mbuf *m) { struct ieee80211vap *vap = ni->ni_vap; int framelen; struct mbuf *n; /* discard 802.3 header inserted by ieee80211_decap */ m_adj(m, sizeof(struct ether_header)); vap->iv_stats.is_amsdu_decap++; for (;;) { /* * Decap the first frame, bust it apart from the * remainder and deliver. We leave the last frame * delivery to the caller (for consistency with other * code paths, could also do it here). */ m = ieee80211_decap1(m, &framelen); if (m == NULL) { IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, ni->ni_macaddr, "a-msdu", "%s", "decap failed"); vap->iv_stats.is_amsdu_tooshort++; return NULL; } if (m->m_pkthdr.len == framelen) break; n = m_split(m, framelen, M_NOWAIT); if (n == NULL) { IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, ni->ni_macaddr, "a-msdu", "%s", "unable to split encapsulated frames"); vap->iv_stats.is_amsdu_split++; m_freem(m); /* NB: must reclaim */ return NULL; } vap->iv_deliver_data(vap, ni, m); /* * Remove frame contents; each intermediate frame * is required to be aligned to a 4-byte boundary. */ m = n; m_adj(m, roundup2(framelen, 4) - framelen); /* padding */ } return m; /* last delivered by caller */ } /* * Add the given frame to the current RX reorder slot. * * For future offloaded A-MSDU handling where multiple frames with * the same sequence number show up here, this routine will append * those frames as long as they're appropriately tagged. */ 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) { struct ieee80211vap *vap = ni->ni_vap; if (rap->rxa_m[off] == NULL) { rap->rxa_m[off] = m; rap->rxa_qframes++; rap->rxa_qbytes += m->m_pkthdr.len; vap->iv_stats.is_ampdu_rx_reorder++; return (0); } else { IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr, "a-mpdu duplicate", "seqno %u tid %u BA win <%u:%u>", rxseq, tid, rap->rxa_start, IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1)); vap->iv_stats.is_rx_dup++; IEEE80211_NODE_STAT(ni, rx_dup); m_freem(m); return (-1); } } static void ampdu_rx_purge_slot(struct ieee80211_rx_ampdu *rap, int i) { struct mbuf *m; m = rap->rxa_m[i]; if (m == NULL) return; rap->rxa_m[i] = NULL; rap->rxa_qbytes -= m->m_pkthdr.len; rap->rxa_qframes--; m_freem(m); } /* * Purge all frames in the A-MPDU re-order queue. */ static void ampdu_rx_purge(struct ieee80211_rx_ampdu *rap) { int i; for (i = 0; i < rap->rxa_wnd; i++) { ampdu_rx_purge_slot(rap, i); if (rap->rxa_qframes == 0) break; } KASSERT(rap->rxa_qbytes == 0 && rap->rxa_qframes == 0, ("lost %u data, %u frames on ampdu rx q", rap->rxa_qbytes, rap->rxa_qframes)); } /* * Start A-MPDU rx/re-order processing for the specified TID. */ static int ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, int baparamset, int batimeout, int baseqctl) { + struct ieee80211vap *vap = ni->ni_vap; int bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ); if (rap->rxa_flags & IEEE80211_AGGR_RUNNING) { /* * AMPDU previously setup and not terminated with a DELBA, * flush the reorder q's in case anything remains. */ ampdu_rx_purge(rap); } memset(rap, 0, sizeof(*rap)); rap->rxa_wnd = (bufsiz == 0) ? IEEE80211_AGGR_BAWMAX : min(bufsiz, IEEE80211_AGGR_BAWMAX); rap->rxa_start = MS(baseqctl, IEEE80211_BASEQ_START); rap->rxa_flags |= IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_XCHGPEND; + /* XXX this should be a configuration flag */ + if ((vap->iv_htcaps & IEEE80211_HTC_RX_AMSDU_AMPDU) && + (MS(baparamset, IEEE80211_BAPS_AMSDU))) + rap->rxa_flags |= IEEE80211_AGGR_AMSDU; + else + rap->rxa_flags &= ~IEEE80211_AGGR_AMSDU; + return 0; } /* * Public function; manually setup the RX ampdu state. */ int ieee80211_ampdu_rx_start_ext(struct ieee80211_node *ni, int tid, int seq, int baw) { struct ieee80211_rx_ampdu *rap; /* XXX TODO: sanity check tid, seq, baw */ rap = &ni->ni_rx_ampdu[tid]; if (rap->rxa_flags & IEEE80211_AGGR_RUNNING) { /* * AMPDU previously setup and not terminated with a DELBA, * flush the reorder q's in case anything remains. */ ampdu_rx_purge(rap); } memset(rap, 0, sizeof(*rap)); rap->rxa_wnd = (baw== 0) ? IEEE80211_AGGR_BAWMAX : min(baw, IEEE80211_AGGR_BAWMAX); if (seq == -1) { /* Wait for the first RX frame, use that as BAW */ rap->rxa_start = 0; rap->rxa_flags |= IEEE80211_AGGR_WAITRX; } else { rap->rxa_start = seq; } rap->rxa_flags |= IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_XCHGPEND; + /* XXX TODO: no amsdu flag */ + IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni, "%s: tid=%d, start=%d, wnd=%d, flags=0x%08x", __func__, tid, seq, rap->rxa_wnd, rap->rxa_flags); return 0; } /* * Public function; manually stop the RX AMPDU state. */ void ieee80211_ampdu_rx_stop_ext(struct ieee80211_node *ni, int tid) { struct ieee80211_rx_ampdu *rap; /* XXX TODO: sanity check tid, seq, baw */ rap = &ni->ni_rx_ampdu[tid]; ampdu_rx_stop(ni, rap); } /* * Stop A-MPDU rx processing for the specified TID. */ static void ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) { ampdu_rx_purge(rap); rap->rxa_flags &= ~(IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_XCHGPEND | IEEE80211_AGGR_WAITRX); } /* * Dispatch a frame from the A-MPDU reorder queue. The * frame is fed back into ieee80211_input marked with an * M_AMPDU_MPDU flag so it doesn't come back to us (it also * permits ieee80211_input to optimize re-processing). */ static __inline void ampdu_dispatch(struct ieee80211_node *ni, struct mbuf *m) { m->m_flags |= M_AMPDU_MPDU; /* bypass normal processing */ /* NB: rssi and noise are ignored w/ M_AMPDU_MPDU set */ (void) ieee80211_input(ni, m, 0, 0); } static int ampdu_dispatch_slot(struct ieee80211_rx_ampdu *rap, struct ieee80211_node *ni, int i) { struct mbuf *m; if (rap->rxa_m[i] == NULL) return (0); m = rap->rxa_m[i]; rap->rxa_m[i] = NULL; rap->rxa_qbytes -= m->m_pkthdr.len; rap->rxa_qframes--; ampdu_dispatch(ni, m); return (1); } static void ampdu_rx_moveup(struct ieee80211_rx_ampdu *rap, struct ieee80211_node *ni, int i, int winstart) { struct ieee80211vap *vap = ni->ni_vap; if (rap->rxa_qframes != 0) { int n = rap->rxa_qframes, j; if (winstart != -1) { /* * NB: in window-sliding mode, loop assumes i > 0 * and/or rxa_m[0] is NULL */ KASSERT(rap->rxa_m[0] == NULL, ("%s: BA window slot 0 occupied", __func__)); } for (j = i+1; j < rap->rxa_wnd; j++) { if (rap->rxa_m[j] != NULL) { rap->rxa_m[j-i] = rap->rxa_m[j]; rap->rxa_m[j] = NULL; if (--n == 0) break; } } KASSERT(n == 0, ("%s: lost %d frames, qframes %d off %d " "BA win <%d:%d> winstart %d", __func__, n, rap->rxa_qframes, i, rap->rxa_start, IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1), winstart)); vap->iv_stats.is_ampdu_rx_copy += rap->rxa_qframes; } } /* * Dispatch as many frames as possible from the re-order queue. * Frames will always be "at the front"; we process all frames * up to the first empty slot in the window. On completion we * cleanup state if there are still pending frames in the current * BA window. We assume the frame at slot 0 is already handled * by the caller; we always start at slot 1. */ static void ampdu_rx_dispatch(struct ieee80211_rx_ampdu *rap, struct ieee80211_node *ni) { struct ieee80211vap *vap = ni->ni_vap; int i; /* flush run of frames */ for (i = 1; i < rap->rxa_wnd; i++) { if (ampdu_dispatch_slot(rap, ni, i) == 0) break; } /* * If frames remain, copy the mbuf pointers down so * they correspond to the offsets in the new window. */ ampdu_rx_moveup(rap, ni, i, -1); /* * Adjust the start of the BA window to * reflect the frames just dispatched. */ rap->rxa_start = IEEE80211_SEQ_ADD(rap->rxa_start, i); vap->iv_stats.is_ampdu_rx_oor += i; } /* * Dispatch all frames in the A-MPDU re-order queue. */ static void ampdu_rx_flush(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) { struct ieee80211vap *vap = ni->ni_vap; int i, r; for (i = 0; i < rap->rxa_wnd; i++) { r = ampdu_dispatch_slot(rap, ni, i); if (r == 0) continue; vap->iv_stats.is_ampdu_rx_oor += r; if (rap->rxa_qframes == 0) break; } } /* * Dispatch all frames in the A-MPDU re-order queue * preceding the specified sequence number. This logic * handles window moves due to a received MSDU or BAR. */ static void ampdu_rx_flush_upto(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, ieee80211_seq winstart) { struct ieee80211vap *vap = ni->ni_vap; ieee80211_seq seqno; int i, r; /* * Flush any complete MSDU's with a sequence number lower * than winstart. Gaps may exist. Note that we may actually * dispatch frames past winstart if a run continues; this is * an optimization that avoids having to do a separate pass * to dispatch frames after moving the BA window start. */ seqno = rap->rxa_start; for (i = 0; i < rap->rxa_wnd; i++) { r = ampdu_dispatch_slot(rap, ni, i); if (r == 0) { if (!IEEE80211_SEQ_BA_BEFORE(seqno, winstart)) break; } vap->iv_stats.is_ampdu_rx_oor += r; seqno = IEEE80211_SEQ_INC(seqno); } /* * If frames remain, copy the mbuf pointers down so * they correspond to the offsets in the new window. */ ampdu_rx_moveup(rap, ni, i, winstart); /* * Move the start of the BA window; we use the * sequence number of the last MSDU that was * passed up the stack+1 or winstart if stopped on * a gap in the reorder buffer. */ rap->rxa_start = seqno; } /* * Process a received QoS data frame for an HT station. Handle * A-MPDU reordering: if this frame is received out of order * and falls within the BA window hold onto it. Otherwise if * this frame completes a run, flush any pending frames. We * return 1 if the frame is consumed. A 0 is returned if * the frame should be processed normally by the caller. */ int ieee80211_ampdu_reorder(struct ieee80211_node *ni, struct mbuf *m, const struct ieee80211_rx_stats *rxs) { #define PROCESS 0 /* caller should process frame */ #define CONSUMED 1 /* frame consumed, caller does nothing */ struct ieee80211vap *vap = ni->ni_vap; struct ieee80211_qosframe *wh; struct ieee80211_rx_ampdu *rap; ieee80211_seq rxseq; uint8_t tid; int off; KASSERT((m->m_flags & (M_AMPDU | M_AMPDU_MPDU)) == M_AMPDU, ("!a-mpdu or already re-ordered, flags 0x%x", m->m_flags)); KASSERT(ni->ni_flags & IEEE80211_NODE_HT, ("not an HT sta")); /* NB: m_len known to be sufficient */ wh = mtod(m, struct ieee80211_qosframe *); if (wh->i_fc[0] != IEEE80211_FC0_QOSDATA) { /* * Not QoS data, shouldn't get here but just * return it to the caller for processing. */ return PROCESS; } /* * 802.11-2012 9.3.2.10 - Duplicate detection and recovery. * * Multicast QoS data frames are checked against a different * counter, not the per-TID counter. */ if (IEEE80211_IS_MULTICAST(wh->i_addr1)) return PROCESS; tid = ieee80211_getqos(wh)[0]; tid &= IEEE80211_QOS_TID; rap = &ni->ni_rx_ampdu[tid]; if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0) { /* * No ADDBA request yet, don't touch. */ return PROCESS; } rxseq = le16toh(*(uint16_t *)wh->i_seq); if ((rxseq & IEEE80211_SEQ_FRAG_MASK) != 0) { /* * Fragments are not allowed; toss. */ IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr, "A-MPDU", "fragment, rxseq 0x%x tid %u%s", rxseq, tid, wh->i_fc[1] & IEEE80211_FC1_RETRY ? " (retransmit)" : ""); vap->iv_stats.is_ampdu_rx_drop++; IEEE80211_NODE_STAT(ni, rx_drop); m_freem(m); return CONSUMED; } rxseq >>= IEEE80211_SEQ_SEQ_SHIFT; rap->rxa_nframes++; /* * Handle waiting for the first frame to define the BAW. * Some firmware doesn't provide the RX of the starting point * of the BAW and we have to cope. */ if (rap->rxa_flags & IEEE80211_AGGR_WAITRX) { rap->rxa_flags &= ~IEEE80211_AGGR_WAITRX; rap->rxa_start = rxseq; } again: if (rxseq == rap->rxa_start) { /* * First frame in window. */ if (rap->rxa_qframes != 0) { /* * Dispatch as many packets as we can. */ KASSERT(rap->rxa_m[0] == NULL, ("unexpected dup")); ampdu_dispatch(ni, m); ampdu_rx_dispatch(rap, ni); return CONSUMED; } else { /* * In order; advance window and notify * caller to dispatch directly. */ rap->rxa_start = IEEE80211_SEQ_INC(rxseq); return PROCESS; } } /* * Frame is out of order; store if in the BA window. */ /* calculate offset in BA window */ off = IEEE80211_SEQ_SUB(rxseq, rap->rxa_start); if (off < rap->rxa_wnd) { /* * Common case (hopefully): in the BA window. * Sec 9.10.7.6.2 a) (p.137) */ /* * Check for frames sitting too long in the reorder queue. * This should only ever happen if frames are not delivered * without the sender otherwise notifying us (e.g. with a * BAR to move the window). Typically this happens because * of vendor bugs that cause the sequence number to jump. * When this happens we get a gap in the reorder queue that * leaves frame sitting on the queue until they get pushed * out due to window moves. When the vendor does not send * BAR this move only happens due to explicit packet sends * * NB: we only track the time of the oldest frame in the * reorder q; this means that if we flush we might push * frames that still "new"; if this happens then subsequent * frames will result in BA window moves which cost something * but is still better than a big throughput dip. */ if (rap->rxa_qframes != 0) { /* XXX honor batimeout? */ if (ticks - rap->rxa_age > ieee80211_ampdu_age) { /* * Too long since we received the first * frame; flush the reorder buffer. */ if (rap->rxa_qframes != 0) { vap->iv_stats.is_ampdu_rx_age += rap->rxa_qframes; ampdu_rx_flush(ni, rap); } rap->rxa_start = IEEE80211_SEQ_INC(rxseq); return PROCESS; } } else { /* * First frame, start aging timer. */ rap->rxa_age = ticks; } /* save packet - this consumes, no matter what */ ampdu_rx_add_slot(rap, off, tid, rxseq, ni, m); return CONSUMED; } if (off < IEEE80211_SEQ_BA_RANGE) { /* * Outside the BA window, but within range; * flush the reorder q and move the window. * Sec 9.10.7.6.2 b) (p.138) */ IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni, "move BA win <%u:%u> (%u frames) rxseq %u tid %u", rap->rxa_start, IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1), rap->rxa_qframes, rxseq, tid); vap->iv_stats.is_ampdu_rx_move++; /* * The spec says to flush frames up to but not including: * WinStart_B = rxseq - rap->rxa_wnd + 1 * Then insert the frame or notify the caller to process * it immediately. We can safely do this by just starting * over again because we know the frame will now be within * the BA window. */ /* NB: rxa_wnd known to be >0 */ ampdu_rx_flush_upto(ni, rap, IEEE80211_SEQ_SUB(rxseq, rap->rxa_wnd-1)); goto again; } else { /* * Outside the BA window and out of range; toss. * Sec 9.10.7.6.2 c) (p.138) */ IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr, "MPDU", "BA win <%u:%u> (%u frames) rxseq %u tid %u%s", rap->rxa_start, IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1), rap->rxa_qframes, rxseq, tid, wh->i_fc[1] & IEEE80211_FC1_RETRY ? " (retransmit)" : ""); vap->iv_stats.is_ampdu_rx_drop++; IEEE80211_NODE_STAT(ni, rx_drop); m_freem(m); return CONSUMED; } #undef CONSUMED #undef PROCESS } /* * Process a BAR ctl frame. Dispatch all frames up to * the sequence number of the frame. If this frame is * out of range it's discarded. */ void ieee80211_recv_bar(struct ieee80211_node *ni, struct mbuf *m0) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211_frame_bar *wh; struct ieee80211_rx_ampdu *rap; ieee80211_seq rxseq; int tid, off; if (!ieee80211_recv_bar_ena) { #if 0 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_11N, ni->ni_macaddr, "BAR", "%s", "processing disabled"); #endif vap->iv_stats.is_ampdu_bar_bad++; return; } wh = mtod(m0, struct ieee80211_frame_bar *); /* XXX check basic BAR */ tid = MS(le16toh(wh->i_ctl), IEEE80211_BAR_TID); rap = &ni->ni_rx_ampdu[tid]; if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0) { /* * No ADDBA request yet, don't touch. */ IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr, "BAR", "no BA stream, tid %u", tid); vap->iv_stats.is_ampdu_bar_bad++; return; } vap->iv_stats.is_ampdu_bar_rx++; rxseq = le16toh(wh->i_seq) >> IEEE80211_SEQ_SEQ_SHIFT; if (rxseq == rap->rxa_start) return; /* calculate offset in BA window */ off = IEEE80211_SEQ_SUB(rxseq, rap->rxa_start); if (off < IEEE80211_SEQ_BA_RANGE) { /* * Flush the reorder q up to rxseq and move the window. * Sec 9.10.7.6.3 a) (p.138) */ IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni, "BAR moves BA win <%u:%u> (%u frames) rxseq %u tid %u", rap->rxa_start, IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1), rap->rxa_qframes, rxseq, tid); vap->iv_stats.is_ampdu_bar_move++; ampdu_rx_flush_upto(ni, rap, rxseq); if (off >= rap->rxa_wnd) { /* * BAR specifies a window start to the right of BA * window; we must move it explicitly since * ampdu_rx_flush_upto will not. */ rap->rxa_start = rxseq; } } else { /* * Out of range; toss. * Sec 9.10.7.6.3 b) (p.138) */ IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT | IEEE80211_MSG_11N, ni->ni_macaddr, "BAR", "BA win <%u:%u> (%u frames) rxseq %u tid %u%s", rap->rxa_start, IEEE80211_SEQ_ADD(rap->rxa_start, rap->rxa_wnd-1), rap->rxa_qframes, rxseq, tid, wh->i_fc[1] & IEEE80211_FC1_RETRY ? " (retransmit)" : ""); vap->iv_stats.is_ampdu_bar_oow++; IEEE80211_NODE_STAT(ni, rx_drop); } } /* * Setup HT-specific state in a node. Called only * when HT use is negotiated so we don't do extra * work for temporary and/or legacy sta's. */ void ieee80211_ht_node_init(struct ieee80211_node *ni) { struct ieee80211_tx_ampdu *tap; int tid; IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni, "%s: called (%p)", __func__, ni); if (ni->ni_flags & IEEE80211_NODE_HT) { /* * Clean AMPDU state on re-associate. This handles the case * where a station leaves w/o notifying us and then returns * before node is reaped for inactivity. */ IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni, "%s: calling cleanup (%p)", __func__, ni); ieee80211_ht_node_cleanup(ni); } for (tid = 0; tid < WME_NUM_TID; tid++) { tap = &ni->ni_tx_ampdu[tid]; tap->txa_tid = tid; tap->txa_ni = ni; ieee80211_txampdu_init_pps(tap); /* NB: further initialization deferred */ } - ni->ni_flags |= IEEE80211_NODE_HT | IEEE80211_NODE_AMPDU; + ni->ni_flags |= IEEE80211_NODE_HT | IEEE80211_NODE_AMPDU | + IEEE80211_NODE_AMSDU; } /* * Cleanup HT-specific state in a node. Called only * when HT use has been marked. */ void ieee80211_ht_node_cleanup(struct ieee80211_node *ni) { struct ieee80211com *ic = ni->ni_ic; int i; IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni, "%s: called (%p)", __func__, ni); KASSERT(ni->ni_flags & IEEE80211_NODE_HT, ("not an HT node")); /* XXX optimize this */ for (i = 0; i < WME_NUM_TID; i++) { struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[i]; if (tap->txa_flags & IEEE80211_AGGR_SETUP) ampdu_tx_stop(tap); } for (i = 0; i < WME_NUM_TID; i++) ic->ic_ampdu_rx_stop(ni, &ni->ni_rx_ampdu[i]); ni->ni_htcap = 0; ni->ni_flags &= ~IEEE80211_NODE_HT_ALL; } /* * Age out HT resources for a station. */ void ieee80211_ht_node_age(struct ieee80211_node *ni) { struct ieee80211vap *vap = ni->ni_vap; uint8_t tid; KASSERT(ni->ni_flags & IEEE80211_NODE_HT, ("not an HT sta")); for (tid = 0; tid < WME_NUM_TID; tid++) { struct ieee80211_rx_ampdu *rap; rap = &ni->ni_rx_ampdu[tid]; if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0) continue; if (rap->rxa_qframes == 0) continue; /* * Check for frames sitting too long in the reorder queue. * See above for more details on what's happening here. */ /* XXX honor batimeout? */ if (ticks - rap->rxa_age > ieee80211_ampdu_age) { /* * Too long since we received the first * frame; flush the reorder buffer. */ vap->iv_stats.is_ampdu_rx_age += rap->rxa_qframes; ampdu_rx_flush(ni, rap); } } } static struct ieee80211_channel * findhtchan(struct ieee80211com *ic, struct ieee80211_channel *c, int htflags) { return ieee80211_find_channel(ic, c->ic_freq, (c->ic_flags &~ IEEE80211_CHAN_HT) | htflags); } /* * Adjust a channel to be HT/non-HT according to the vap's configuration. */ struct ieee80211_channel * ieee80211_ht_adjust_channel(struct ieee80211com *ic, struct ieee80211_channel *chan, int flags) { struct ieee80211_channel *c; if (flags & IEEE80211_FHT_HT) { /* promote to HT if possible */ if (flags & IEEE80211_FHT_USEHT40) { if (!IEEE80211_IS_CHAN_HT40(chan)) { /* NB: arbitrarily pick ht40+ over ht40- */ c = findhtchan(ic, chan, IEEE80211_CHAN_HT40U); if (c == NULL) c = findhtchan(ic, chan, IEEE80211_CHAN_HT40D); if (c == NULL) c = findhtchan(ic, chan, IEEE80211_CHAN_HT20); if (c != NULL) chan = c; } } else if (!IEEE80211_IS_CHAN_HT20(chan)) { c = findhtchan(ic, chan, IEEE80211_CHAN_HT20); if (c != NULL) chan = c; } } else if (IEEE80211_IS_CHAN_HT(chan)) { /* demote to legacy, HT use is disabled */ c = ieee80211_find_channel(ic, chan->ic_freq, chan->ic_flags &~ IEEE80211_CHAN_HT); if (c != NULL) chan = c; } return chan; } /* * Setup HT-specific state for a legacy WDS peer. */ void ieee80211_ht_wds_init(struct ieee80211_node *ni) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211_tx_ampdu *tap; int tid; KASSERT(vap->iv_flags_ht & IEEE80211_FHT_HT, ("no HT requested")); /* XXX check scan cache in case peer has an ap and we have info */ /* * If setup with a legacy channel; locate an HT channel. * Otherwise if the inherited channel (from a companion * AP) is suitable use it so we use the same location * for the extension channel). */ ni->ni_chan = ieee80211_ht_adjust_channel(ni->ni_ic, ni->ni_chan, ieee80211_htchanflags(ni->ni_chan)); ni->ni_htcap = 0; if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20) ni->ni_htcap |= IEEE80211_HTCAP_SHORTGI20; if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { ni->ni_htcap |= IEEE80211_HTCAP_CHWIDTH40; ni->ni_chw = 40; if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) ni->ni_ht2ndchan = IEEE80211_HTINFO_2NDCHAN_ABOVE; else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) ni->ni_ht2ndchan = IEEE80211_HTINFO_2NDCHAN_BELOW; if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40) ni->ni_htcap |= IEEE80211_HTCAP_SHORTGI40; } else { ni->ni_chw = 20; ni->ni_ht2ndchan = IEEE80211_HTINFO_2NDCHAN_NONE; } ni->ni_htctlchan = ni->ni_chan->ic_ieee; if (vap->iv_flags_ht & IEEE80211_FHT_RIFS) ni->ni_flags |= IEEE80211_NODE_RIFS; /* XXX does it make sense to enable SMPS? */ ni->ni_htopmode = 0; /* XXX need protection state */ ni->ni_htstbc = 0; /* XXX need info */ for (tid = 0; tid < WME_NUM_TID; tid++) { tap = &ni->ni_tx_ampdu[tid]; tap->txa_tid = tid; ieee80211_txampdu_init_pps(tap); } /* NB: AMPDU tx/rx governed by IEEE80211_FHT_AMPDU_{TX,RX} */ - ni->ni_flags |= IEEE80211_NODE_HT | IEEE80211_NODE_AMPDU; + ni->ni_flags |= IEEE80211_NODE_HT | IEEE80211_NODE_AMPDU | + IEEE80211_NODE_AMSDU; } /* * Notify hostap vaps of a change in the HTINFO ie. */ static void htinfo_notify(struct ieee80211com *ic) { struct ieee80211vap *vap; int first = 1; IEEE80211_LOCK_ASSERT(ic); TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { if (vap->iv_opmode != IEEE80211_M_HOSTAP) continue; if (vap->iv_state != IEEE80211_S_RUN || !IEEE80211_IS_CHAN_HT(vap->iv_bss->ni_chan)) continue; if (first) { IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, vap->iv_bss, "HT bss occupancy change: %d sta, %d ht, " "%d ht40%s, HT protmode now 0x%x" , ic->ic_sta_assoc , ic->ic_ht_sta_assoc , ic->ic_ht40_sta_assoc , (ic->ic_flags_ht & IEEE80211_FHT_NONHT_PR) ? ", non-HT sta present" : "" , ic->ic_curhtprotmode); first = 0; } ieee80211_beacon_notify(vap, IEEE80211_BEACON_HTINFO); } } /* * Calculate HT protection mode from current * state and handle updates. */ static void htinfo_update(struct ieee80211com *ic) { uint8_t protmode; if (ic->ic_sta_assoc != ic->ic_ht_sta_assoc) { protmode = IEEE80211_HTINFO_OPMODE_MIXED | IEEE80211_HTINFO_NONHT_PRESENT; } else if (ic->ic_flags_ht & IEEE80211_FHT_NONHT_PR) { protmode = IEEE80211_HTINFO_OPMODE_PROTOPT | IEEE80211_HTINFO_NONHT_PRESENT; } else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC && IEEE80211_IS_CHAN_HT40(ic->ic_bsschan) && ic->ic_sta_assoc != ic->ic_ht40_sta_assoc) { protmode = IEEE80211_HTINFO_OPMODE_HT20PR; } else { protmode = IEEE80211_HTINFO_OPMODE_PURE; } if (protmode != ic->ic_curhtprotmode) { ic->ic_curhtprotmode = protmode; htinfo_notify(ic); } } /* * Handle an HT station joining a BSS. */ void ieee80211_ht_node_join(struct ieee80211_node *ni) { struct ieee80211com *ic = ni->ni_ic; IEEE80211_LOCK_ASSERT(ic); if (ni->ni_flags & IEEE80211_NODE_HT) { ic->ic_ht_sta_assoc++; if (ni->ni_chw == 40) ic->ic_ht40_sta_assoc++; } htinfo_update(ic); } /* * Handle an HT station leaving a BSS. */ void ieee80211_ht_node_leave(struct ieee80211_node *ni) { struct ieee80211com *ic = ni->ni_ic; IEEE80211_LOCK_ASSERT(ic); if (ni->ni_flags & IEEE80211_NODE_HT) { ic->ic_ht_sta_assoc--; if (ni->ni_chw == 40) ic->ic_ht40_sta_assoc--; } htinfo_update(ic); } /* * Public version of htinfo_update; used for processing * beacon frames from overlapping bss. * * Caller can specify either IEEE80211_HTINFO_OPMODE_MIXED * (on receipt of a beacon that advertises MIXED) or * IEEE80211_HTINFO_OPMODE_PROTOPT (on receipt of a beacon * from an overlapping legacy bss). We treat MIXED with * a higher precedence than PROTOPT (i.e. we will not change * change PROTOPT -> MIXED; only MIXED -> PROTOPT). This * corresponds to how we handle things in htinfo_update. */ void ieee80211_htprot_update(struct ieee80211com *ic, int protmode) { #define OPMODE(x) SM(x, IEEE80211_HTINFO_OPMODE) IEEE80211_LOCK(ic); /* track non-HT station presence */ KASSERT(protmode & IEEE80211_HTINFO_NONHT_PRESENT, ("protmode 0x%x", protmode)); ic->ic_flags_ht |= IEEE80211_FHT_NONHT_PR; ic->ic_lastnonht = ticks; if (protmode != ic->ic_curhtprotmode && (OPMODE(ic->ic_curhtprotmode) != IEEE80211_HTINFO_OPMODE_MIXED || OPMODE(protmode) == IEEE80211_HTINFO_OPMODE_PROTOPT)) { /* push beacon update */ ic->ic_curhtprotmode = protmode; htinfo_notify(ic); } IEEE80211_UNLOCK(ic); #undef OPMODE } /* * Time out presence of an overlapping bss with non-HT * stations. When operating in hostap mode we listen for * beacons from other stations and if we identify a non-HT * station is present we update the opmode field of the * HTINFO ie. To identify when all non-HT stations are * gone we time out this condition. */ void ieee80211_ht_timeout(struct ieee80211com *ic) { IEEE80211_LOCK_ASSERT(ic); if ((ic->ic_flags_ht & IEEE80211_FHT_NONHT_PR) && ieee80211_time_after(ticks, ic->ic_lastnonht + IEEE80211_NONHT_PRESENT_AGE)) { #if 0 IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni, "%s", "time out non-HT STA present on channel"); #endif ic->ic_flags_ht &= ~IEEE80211_FHT_NONHT_PR; htinfo_update(ic); } } /* * Process an 802.11n HT capabilities ie. */ void ieee80211_parse_htcap(struct ieee80211_node *ni, const uint8_t *ie) { if (ie[0] == IEEE80211_ELEMID_VENDOR) { /* * Station used Vendor OUI ie to associate; * mark the node so when we respond we'll use * the Vendor OUI's and not the standard ie's. */ ni->ni_flags |= IEEE80211_NODE_HTCOMPAT; ie += 4; } else ni->ni_flags &= ~IEEE80211_NODE_HTCOMPAT; ni->ni_htcap = le16dec(ie + __offsetof(struct ieee80211_ie_htcap, hc_cap)); ni->ni_htparam = ie[__offsetof(struct ieee80211_ie_htcap, hc_param)]; } static void htinfo_parse(struct ieee80211_node *ni, const struct ieee80211_ie_htinfo *htinfo) { uint16_t w; ni->ni_htctlchan = htinfo->hi_ctrlchannel; ni->ni_ht2ndchan = SM(htinfo->hi_byte1, IEEE80211_HTINFO_2NDCHAN); w = le16dec(&htinfo->hi_byte2); ni->ni_htopmode = SM(w, IEEE80211_HTINFO_OPMODE); w = le16dec(&htinfo->hi_byte45); ni->ni_htstbc = SM(w, IEEE80211_HTINFO_BASIC_STBCMCS); } /* * Parse an 802.11n HT info ie and save useful information * to the node state. Note this does not effect any state * changes such as for channel width change. */ void ieee80211_parse_htinfo(struct ieee80211_node *ni, const uint8_t *ie) { if (ie[0] == IEEE80211_ELEMID_VENDOR) ie += 4; htinfo_parse(ni, (const struct ieee80211_ie_htinfo *) ie); } /* * Handle 11n/11ac channel switch. * * Use the received HT/VHT ie's to identify the right channel to use. * If we cannot locate it in the channel table then fallback to * legacy operation. * * Note that we use this information to identify the node's * channel only; the caller is responsible for insuring any * required channel change is done (e.g. in sta mode when * parsing the contents of a beacon frame). */ static int htinfo_update_chw(struct ieee80211_node *ni, int htflags, int vhtflags) { struct ieee80211com *ic = ni->ni_ic; struct ieee80211_channel *c; int chanflags; int ret = 0; /* * First step - do HT/VHT only channel lookup based on operating mode * flags. This involves masking out the VHT flags as well. * Otherwise we end up doing the full channel walk each time * we trigger this, which is expensive. */ chanflags = (ni->ni_chan->ic_flags &~ (IEEE80211_CHAN_HT | IEEE80211_CHAN_VHT)) | htflags | vhtflags; if (chanflags == ni->ni_chan->ic_flags) goto done; /* * If HT /or/ VHT flags have changed then check both. * We need to start by picking a HT channel anyway. */ c = NULL; chanflags = (ni->ni_chan->ic_flags &~ (IEEE80211_CHAN_HT | IEEE80211_CHAN_VHT)) | htflags; /* XXX not right for ht40- */ c = ieee80211_find_channel(ic, ni->ni_chan->ic_freq, chanflags); if (c == NULL && (htflags & IEEE80211_CHAN_HT40)) { /* * No HT40 channel entry in our table; fall back * to HT20 operation. This should not happen. */ c = findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT20); #if 0 IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni, "no HT40 channel (freq %u), falling back to HT20", ni->ni_chan->ic_freq); #endif /* XXX stat */ } /* Nothing found - leave it alone; move onto VHT */ if (c == NULL) c = ni->ni_chan; /* * If it's non-HT, then bail out now. */ if (! IEEE80211_IS_CHAN_HT(c)) { IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni, "not HT; skipping VHT check (%u/0x%x)", c->ic_freq, c->ic_flags); goto done; } /* * Next step - look at the current VHT flags and determine * if we need to upgrade. Mask out the VHT and HT flags since * the vhtflags field will already have the correct HT * flags to use. */ if (IEEE80211_CONF_VHT(ic) && ni->ni_vhtcap != 0 && vhtflags != 0) { chanflags = (c->ic_flags &~ (IEEE80211_CHAN_HT | IEEE80211_CHAN_VHT)) | vhtflags; IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni, "%s: VHT; chanwidth=0x%02x; vhtflags=0x%08x", __func__, ni->ni_vht_chanwidth, vhtflags); IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni, "%s: VHT; trying lookup for %d/0x%08x", __func__, c->ic_freq, chanflags); c = ieee80211_find_channel(ic, c->ic_freq, chanflags); } /* Finally, if it's changed */ if (c != NULL && c != ni->ni_chan) { IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni, "switch station to %s%d channel %u/0x%x", IEEE80211_IS_CHAN_VHT(c) ? "VHT" : "HT", IEEE80211_IS_CHAN_VHT80(c) ? 80 : (IEEE80211_IS_CHAN_HT40(c) ? 40 : 20), c->ic_freq, c->ic_flags); ni->ni_chan = c; ret = 1; } /* NB: caller responsible for forcing any channel change */ done: /* update node's (11n) tx channel width */ ni->ni_chw = IEEE80211_IS_CHAN_HT40(ni->ni_chan)? 40 : 20; return (ret); } /* * Update 11n MIMO PS state according to received htcap. */ static __inline int htcap_update_mimo_ps(struct ieee80211_node *ni) { uint16_t oflags = ni->ni_flags; switch (ni->ni_htcap & IEEE80211_HTCAP_SMPS) { case IEEE80211_HTCAP_SMPS_DYNAMIC: ni->ni_flags |= IEEE80211_NODE_MIMO_PS; ni->ni_flags |= IEEE80211_NODE_MIMO_RTS; break; case IEEE80211_HTCAP_SMPS_ENA: ni->ni_flags |= IEEE80211_NODE_MIMO_PS; ni->ni_flags &= ~IEEE80211_NODE_MIMO_RTS; break; case IEEE80211_HTCAP_SMPS_OFF: default: /* disable on rx of reserved value */ ni->ni_flags &= ~IEEE80211_NODE_MIMO_PS; ni->ni_flags &= ~IEEE80211_NODE_MIMO_RTS; break; } return (oflags ^ ni->ni_flags); } /* * Update short GI state according to received htcap * and local settings. */ static __inline void htcap_update_shortgi(struct ieee80211_node *ni) { struct ieee80211vap *vap = ni->ni_vap; ni->ni_flags &= ~(IEEE80211_NODE_SGI20|IEEE80211_NODE_SGI40); if ((ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20) && (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)) ni->ni_flags |= IEEE80211_NODE_SGI20; if ((ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40) && (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)) ni->ni_flags |= IEEE80211_NODE_SGI40; } /* * Update LDPC state according to received htcap * and local settings. */ static __inline void htcap_update_ldpc(struct ieee80211_node *ni) { struct ieee80211vap *vap = ni->ni_vap; if ((ni->ni_htcap & IEEE80211_HTCAP_LDPC) && (vap->iv_flags_ht & IEEE80211_FHT_LDPC_TX)) ni->ni_flags |= IEEE80211_NODE_LDPC; } /* * Parse and update HT-related state extracted from * the HT cap and info ie's. * * This is called from the STA management path and * the ieee80211_node_join() path. It will take into * account the IEs discovered during scanning and * adjust things accordingly. */ void ieee80211_ht_updateparams(struct ieee80211_node *ni, const uint8_t *htcapie, const uint8_t *htinfoie) { struct ieee80211vap *vap = ni->ni_vap; const struct ieee80211_ie_htinfo *htinfo; ieee80211_parse_htcap(ni, htcapie); if (vap->iv_htcaps & IEEE80211_HTC_SMPS) htcap_update_mimo_ps(ni); htcap_update_shortgi(ni); htcap_update_ldpc(ni); if (htinfoie[0] == IEEE80211_ELEMID_VENDOR) htinfoie += 4; htinfo = (const struct ieee80211_ie_htinfo *) htinfoie; htinfo_parse(ni, htinfo); /* * Defer the node channel change; we need to now * update VHT parameters before we do it. */ if ((htinfo->hi_byte1 & IEEE80211_HTINFO_RIFSMODE_PERM) && (vap->iv_flags_ht & IEEE80211_FHT_RIFS)) ni->ni_flags |= IEEE80211_NODE_RIFS; else ni->ni_flags &= ~IEEE80211_NODE_RIFS; } static uint32_t ieee80211_vht_get_vhtflags(struct ieee80211_node *ni, uint32_t htflags) { struct ieee80211vap *vap = ni->ni_vap; uint32_t vhtflags = 0; vhtflags = 0; if (ni->ni_flags & IEEE80211_NODE_VHT && vap->iv_flags_vht & IEEE80211_FVHT_VHT) { if ((ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_160MHZ) && /* XXX 2 means "160MHz and 80+80MHz", 1 means "160MHz" */ (MS(vap->iv_vhtcaps, IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK) >= 1) && (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT160)) { vhtflags = IEEE80211_CHAN_VHT160; /* Mirror the HT40 flags */ if (htflags == IEEE80211_CHAN_HT40U) { vhtflags |= IEEE80211_CHAN_HT40U; } else if (htflags == IEEE80211_CHAN_HT40D) { vhtflags |= IEEE80211_CHAN_HT40D; } } else if ((ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_80P80MHZ) && /* XXX 2 means "160MHz and 80+80MHz" */ (MS(vap->iv_vhtcaps, IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK) == 2) && (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80P80)) { vhtflags = IEEE80211_CHAN_VHT80_80; /* Mirror the HT40 flags */ if (htflags == IEEE80211_CHAN_HT40U) { vhtflags |= IEEE80211_CHAN_HT40U; } else if (htflags == IEEE80211_CHAN_HT40D) { vhtflags |= IEEE80211_CHAN_HT40D; } } else if ((ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_80MHZ) && (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80)) { vhtflags = IEEE80211_CHAN_VHT80; /* Mirror the HT40 flags */ if (htflags == IEEE80211_CHAN_HT40U) { vhtflags |= IEEE80211_CHAN_HT40U; } else if (htflags == IEEE80211_CHAN_HT40D) { vhtflags |= IEEE80211_CHAN_HT40D; } } else if (ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_USE_HT) { /* Mirror the HT40 flags */ /* * XXX TODO: if ht40 is disabled, but vht40 isn't * disabled then this logic will get very, very sad. * It's quite possible the only sane thing to do is * to not have vht40 as an option, and just obey * 'ht40' as that flag. */ if ((htflags == IEEE80211_CHAN_HT40U) && (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT40)) { vhtflags = IEEE80211_CHAN_VHT40U | IEEE80211_CHAN_HT40U; } else if (htflags == IEEE80211_CHAN_HT40D && (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT40)) { vhtflags = IEEE80211_CHAN_VHT40D | IEEE80211_CHAN_HT40D; } else if (htflags == IEEE80211_CHAN_HT20) { vhtflags = IEEE80211_CHAN_VHT20 | IEEE80211_CHAN_HT20; } } else { vhtflags = IEEE80211_CHAN_VHT20; } } return (vhtflags); } /* * Final part of updating the HT parameters. * * This is called from the STA management path and * the ieee80211_node_join() path. It will take into * account the IEs discovered during scanning and * adjust things accordingly. * * This is done after a call to ieee80211_ht_updateparams() * because it (and the upcoming VHT version of updateparams) * needs to ensure everything is parsed before htinfo_update_chw() * is called - which will change the channel config for the * node for us. */ int ieee80211_ht_updateparams_final(struct ieee80211_node *ni, const uint8_t *htcapie, const uint8_t *htinfoie) { struct ieee80211vap *vap = ni->ni_vap; const struct ieee80211_ie_htinfo *htinfo; int htflags, vhtflags; int ret = 0; htinfo = (const struct ieee80211_ie_htinfo *) htinfoie; htflags = (vap->iv_flags_ht & IEEE80211_FHT_HT) ? IEEE80211_CHAN_HT20 : 0; /* NB: honor operating mode constraint */ if ((htinfo->hi_byte1 & IEEE80211_HTINFO_TXWIDTH_2040) && (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)) { if (ni->ni_ht2ndchan == IEEE80211_HTINFO_2NDCHAN_ABOVE) htflags = IEEE80211_CHAN_HT40U; else if (ni->ni_ht2ndchan == IEEE80211_HTINFO_2NDCHAN_BELOW) htflags = IEEE80211_CHAN_HT40D; } /* * VHT flags - do much the same; check whether VHT is available * and if so, what our ideal channel use would be based on our * capabilities and the (pre-parsed) VHT info IE. */ vhtflags = ieee80211_vht_get_vhtflags(ni, htflags); if (htinfo_update_chw(ni, htflags, vhtflags)) ret = 1; return (ret); } /* * Parse and update HT-related state extracted from the HT cap ie * for a station joining an HT BSS. * * This is called from the hostap path for each station. */ void ieee80211_ht_updatehtcap(struct ieee80211_node *ni, const uint8_t *htcapie) { struct ieee80211vap *vap = ni->ni_vap; ieee80211_parse_htcap(ni, htcapie); if (vap->iv_htcaps & IEEE80211_HTC_SMPS) htcap_update_mimo_ps(ni); htcap_update_shortgi(ni); htcap_update_ldpc(ni); } /* * Called once HT and VHT capabilities are parsed in hostap mode - * this will adjust the channel configuration of the given node * based on the configuration and capabilities. */ void ieee80211_ht_updatehtcap_final(struct ieee80211_node *ni) { struct ieee80211vap *vap = ni->ni_vap; int htflags; int vhtflags; /* NB: honor operating mode constraint */ /* XXX 40 MHz intolerant */ htflags = (vap->iv_flags_ht & IEEE80211_FHT_HT) ? IEEE80211_CHAN_HT20 : 0; if ((ni->ni_htcap & IEEE80211_HTCAP_CHWIDTH40) && (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)) { if (IEEE80211_IS_CHAN_HT40U(vap->iv_bss->ni_chan)) htflags = IEEE80211_CHAN_HT40U; else if (IEEE80211_IS_CHAN_HT40D(vap->iv_bss->ni_chan)) htflags = IEEE80211_CHAN_HT40D; } /* * VHT flags - do much the same; check whether VHT is available * and if so, what our ideal channel use would be based on our * capabilities and the (pre-parsed) VHT info IE. */ vhtflags = ieee80211_vht_get_vhtflags(ni, htflags); (void) htinfo_update_chw(ni, htflags, vhtflags); } /* * Install received HT rate set by parsing the HT cap ie. */ int ieee80211_setup_htrates(struct ieee80211_node *ni, const uint8_t *ie, int flags) { struct ieee80211com *ic = ni->ni_ic; struct ieee80211vap *vap = ni->ni_vap; const struct ieee80211_ie_htcap *htcap; struct ieee80211_htrateset *rs; int i, maxequalmcs, maxunequalmcs; maxequalmcs = ic->ic_txstream * 8 - 1; maxunequalmcs = 0; if (ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL) { if (ic->ic_txstream >= 2) maxunequalmcs = 38; if (ic->ic_txstream >= 3) maxunequalmcs = 52; if (ic->ic_txstream >= 4) maxunequalmcs = 76; } rs = &ni->ni_htrates; memset(rs, 0, sizeof(*rs)); if (ie != NULL) { if (ie[0] == IEEE80211_ELEMID_VENDOR) ie += 4; htcap = (const struct ieee80211_ie_htcap *) ie; for (i = 0; i < IEEE80211_HTRATE_MAXSIZE; i++) { if (isclr(htcap->hc_mcsset, i)) continue; if (rs->rs_nrates == IEEE80211_HTRATE_MAXSIZE) { IEEE80211_NOTE(vap, IEEE80211_MSG_XRATE | IEEE80211_MSG_11N, ni, "WARNING, HT rate set too large; only " "using %u rates", IEEE80211_HTRATE_MAXSIZE); vap->iv_stats.is_rx_rstoobig++; break; } if (i <= 31 && i > maxequalmcs) continue; if (i == 32 && (ic->ic_htcaps & IEEE80211_HTC_TXMCS32) == 0) continue; if (i > 32 && i > maxunequalmcs) continue; rs->rs_rates[rs->rs_nrates++] = i; } } return ieee80211_fix_rate(ni, (struct ieee80211_rateset *) rs, flags); } /* * Mark rates in a node's HT rate set as basic according * to the information in the supplied HT info ie. */ void ieee80211_setup_basic_htrates(struct ieee80211_node *ni, const uint8_t *ie) { const struct ieee80211_ie_htinfo *htinfo; struct ieee80211_htrateset *rs; int i, j; if (ie[0] == IEEE80211_ELEMID_VENDOR) ie += 4; htinfo = (const struct ieee80211_ie_htinfo *) ie; rs = &ni->ni_htrates; if (rs->rs_nrates == 0) { IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_XRATE | IEEE80211_MSG_11N, ni, "%s", "WARNING, empty HT rate set"); return; } for (i = 0; i < IEEE80211_HTRATE_MAXSIZE; i++) { if (isclr(htinfo->hi_basicmcsset, i)) continue; for (j = 0; j < rs->rs_nrates; j++) if ((rs->rs_rates[j] & IEEE80211_RATE_VAL) == i) rs->rs_rates[j] |= IEEE80211_RATE_BASIC; } } static void ampdu_tx_setup(struct ieee80211_tx_ampdu *tap) { callout_init(&tap->txa_timer, 1); tap->txa_flags |= IEEE80211_AGGR_SETUP; tap->txa_lastsample = ticks; } static void ampdu_tx_stop(struct ieee80211_tx_ampdu *tap) { struct ieee80211_node *ni = tap->txa_ni; struct ieee80211com *ic = ni->ni_ic; IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N, tap->txa_ni, "%s: called", __func__); KASSERT(tap->txa_flags & IEEE80211_AGGR_SETUP, ("txa_flags 0x%x tid %d ac %d", tap->txa_flags, tap->txa_tid, TID_TO_WME_AC(tap->txa_tid))); /* * Stop BA stream if setup so driver has a chance * to reclaim any resources it might have allocated. */ ic->ic_addba_stop(ni, tap); /* * Stop any pending BAR transmit. */ bar_stop_timer(tap); /* * Reset packet estimate. */ ieee80211_txampdu_init_pps(tap); /* NB: clearing NAK means we may re-send ADDBA */ tap->txa_flags &= ~(IEEE80211_AGGR_SETUP | IEEE80211_AGGR_NAK); } /* * ADDBA response timeout. * * If software aggregation and per-TID queue management was done here, * that queue would be unpaused after the ADDBA timeout occurs. */ static void addba_timeout(void *arg) { struct ieee80211_tx_ampdu *tap = arg; struct ieee80211_node *ni = tap->txa_ni; struct ieee80211com *ic = ni->ni_ic; /* XXX ? */ tap->txa_flags &= ~IEEE80211_AGGR_XCHGPEND; tap->txa_attempts++; ic->ic_addba_response_timeout(ni, tap); } static void addba_start_timeout(struct ieee80211_tx_ampdu *tap) { /* XXX use CALLOUT_PENDING instead? */ callout_reset(&tap->txa_timer, ieee80211_addba_timeout, addba_timeout, tap); tap->txa_flags |= IEEE80211_AGGR_XCHGPEND; tap->txa_nextrequest = ticks + ieee80211_addba_timeout; } static void addba_stop_timeout(struct ieee80211_tx_ampdu *tap) { /* XXX use CALLOUT_PENDING instead? */ if (tap->txa_flags & IEEE80211_AGGR_XCHGPEND) { callout_stop(&tap->txa_timer); tap->txa_flags &= ~IEEE80211_AGGR_XCHGPEND; } } static void null_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) { } /* * Default method for requesting A-MPDU tx aggregation. * We setup the specified state block and start a timer * to wait for an ADDBA response frame. */ static int ieee80211_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int dialogtoken, int baparamset, int batimeout) { int bufsiz; /* XXX locking */ tap->txa_token = dialogtoken; tap->txa_flags |= IEEE80211_AGGR_IMMEDIATE; bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ); tap->txa_wnd = (bufsiz == 0) ? IEEE80211_AGGR_BAWMAX : min(bufsiz, IEEE80211_AGGR_BAWMAX); addba_start_timeout(tap); return 1; } /* * Called by drivers that wish to request an ADDBA session be * setup. This brings it up and starts the request timer. */ int ieee80211_ampdu_tx_request_ext(struct ieee80211_node *ni, int tid) { struct ieee80211_tx_ampdu *tap; if (tid < 0 || tid > 15) return (0); tap = &ni->ni_tx_ampdu[tid]; /* XXX locking */ if ((tap->txa_flags & IEEE80211_AGGR_SETUP) == 0) { /* do deferred setup of state */ ampdu_tx_setup(tap); } /* XXX hack for not doing proper locking */ tap->txa_flags &= ~IEEE80211_AGGR_NAK; addba_start_timeout(tap); return (1); } /* * Called by drivers that have marked a session as active. */ int ieee80211_ampdu_tx_request_active_ext(struct ieee80211_node *ni, int tid, int status) { struct ieee80211_tx_ampdu *tap; if (tid < 0 || tid > 15) return (0); tap = &ni->ni_tx_ampdu[tid]; /* XXX locking */ addba_stop_timeout(tap); if (status == 1) { tap->txa_flags |= IEEE80211_AGGR_RUNNING; tap->txa_attempts = 0; } else { /* mark tid so we don't try again */ tap->txa_flags |= IEEE80211_AGGR_NAK; } return (1); } /* * Default method for processing an A-MPDU tx aggregation * response. We shutdown any pending timer and update the * state block according to the reply. */ static int ieee80211_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int status, int baparamset, int batimeout) { + struct ieee80211vap *vap = ni->ni_vap; int bufsiz, tid; /* XXX locking */ addba_stop_timeout(tap); if (status == IEEE80211_STATUS_SUCCESS) { bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ); /* XXX override our request? */ tap->txa_wnd = (bufsiz == 0) ? IEEE80211_AGGR_BAWMAX : min(bufsiz, IEEE80211_AGGR_BAWMAX); - /* XXX AC/TID */ tid = MS(baparamset, IEEE80211_BAPS_TID); tap->txa_flags |= IEEE80211_AGGR_RUNNING; tap->txa_attempts = 0; + /* TODO: this should be a vap flag */ + if ((vap->iv_htcaps & IEEE80211_HTC_TX_AMSDU_AMPDU) && + (ni->ni_flags & IEEE80211_NODE_AMSDU_TX) && + (MS(baparamset, IEEE80211_BAPS_AMSDU))) + tap->txa_flags |= IEEE80211_AGGR_AMSDU; + else + tap->txa_flags &= ~IEEE80211_AGGR_AMSDU; } else { /* mark tid so we don't try again */ tap->txa_flags |= IEEE80211_AGGR_NAK; } return 1; } /* * Default method for stopping A-MPDU tx aggregation. * Any timer is cleared and we drain any pending frames. */ static void ieee80211_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) { /* XXX locking */ addba_stop_timeout(tap); if (tap->txa_flags & IEEE80211_AGGR_RUNNING) { /* XXX clear aggregation queue */ - tap->txa_flags &= ~IEEE80211_AGGR_RUNNING; + tap->txa_flags &= ~(IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_AMSDU); } tap->txa_attempts = 0; } /* * Process a received action frame using the default aggregation * policy. We intercept ADDBA-related frames and use them to * update our aggregation state. All other frames are passed up * for processing by ieee80211_recv_action. */ static int ht_recv_action_ba_addba_request(struct ieee80211_node *ni, const struct ieee80211_frame *wh, const uint8_t *frm, const uint8_t *efrm) { struct ieee80211com *ic = ni->ni_ic; struct ieee80211vap *vap = ni->ni_vap; struct ieee80211_rx_ampdu *rap; uint8_t dialogtoken; uint16_t baparamset, batimeout, baseqctl; uint16_t args[5]; int tid; dialogtoken = frm[2]; baparamset = le16dec(frm+3); batimeout = le16dec(frm+5); baseqctl = le16dec(frm+7); tid = MS(baparamset, IEEE80211_BAPS_TID); IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "recv ADDBA request: dialogtoken %u baparamset 0x%x " "(tid %d bufsiz %d) batimeout %d baseqctl %d:%d amsdu %d", dialogtoken, baparamset, tid, MS(baparamset, IEEE80211_BAPS_BUFSIZ), batimeout, MS(baseqctl, IEEE80211_BASEQ_START), MS(baseqctl, IEEE80211_BASEQ_FRAG), MS(baparamset, IEEE80211_BAPS_AMSDU)); rap = &ni->ni_rx_ampdu[tid]; /* Send ADDBA response */ args[0] = dialogtoken; /* * NB: We ack only if the sta associated with HT and * the ap is configured to do AMPDU rx (the latter * violates the 11n spec and is mostly for testing). */ if ((ni->ni_flags & IEEE80211_NODE_AMPDU_RX) && (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)) { - /* XXX handle ampdu_rx_start failure */ + /* XXX TODO: handle ampdu_rx_start failure */ ic->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); args[1] = IEEE80211_STATUS_SUCCESS; } else { IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "reject ADDBA request: %s", ni->ni_flags & IEEE80211_NODE_AMPDU_RX ? "administratively disabled" : "not negotiated for station"); vap->iv_stats.is_addba_reject++; args[1] = IEEE80211_STATUS_UNSPECIFIED; } /* XXX honor rap flags? */ args[2] = IEEE80211_BAPS_POLICY_IMMEDIATE | SM(tid, IEEE80211_BAPS_TID) | SM(rap->rxa_wnd, IEEE80211_BAPS_BUFSIZ) ; - /* XXX AMSDU in AMPDU? */ + + /* + * TODO: we're out of iv_flags_ht fields; once + * this is extended we should make this configurable. + */ + if ((baparamset & IEEE80211_BAPS_AMSDU) && + (ni->ni_flags & IEEE80211_NODE_AMSDU_RX) && + (vap->iv_htcaps & IEEE80211_HTC_RX_AMSDU_AMPDU)) + args[2] |= IEEE80211_BAPS_AMSDU; + args[3] = 0; args[4] = 0; ic->ic_send_action(ni, IEEE80211_ACTION_CAT_BA, IEEE80211_ACTION_BA_ADDBA_RESPONSE, args); return 0; } static int ht_recv_action_ba_addba_response(struct ieee80211_node *ni, const struct ieee80211_frame *wh, const uint8_t *frm, const uint8_t *efrm) { struct ieee80211com *ic = ni->ni_ic; struct ieee80211vap *vap = ni->ni_vap; struct ieee80211_tx_ampdu *tap; uint8_t dialogtoken, policy; uint16_t baparamset, batimeout, code; int tid, bufsiz; + int amsdu; dialogtoken = frm[2]; code = le16dec(frm+3); baparamset = le16dec(frm+5); tid = MS(baparamset, IEEE80211_BAPS_TID); bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ); policy = MS(baparamset, IEEE80211_BAPS_POLICY); + amsdu = !! MS(baparamset, IEEE80211_BAPS_AMSDU); batimeout = le16dec(frm+7); tap = &ni->ni_tx_ampdu[tid]; if ((tap->txa_flags & IEEE80211_AGGR_XCHGPEND) == 0) { IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni->ni_macaddr, "ADDBA response", "no pending ADDBA, tid %d dialogtoken %u " "code %d", tid, dialogtoken, code); vap->iv_stats.is_addba_norequest++; return 0; } if (dialogtoken != tap->txa_token) { IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni->ni_macaddr, "ADDBA response", "dialogtoken mismatch: waiting for %d, " "received %d, tid %d code %d", tap->txa_token, dialogtoken, tid, code); vap->iv_stats.is_addba_badtoken++; return 0; } /* NB: assumes IEEE80211_AGGR_IMMEDIATE is 1 */ if (policy != (tap->txa_flags & IEEE80211_AGGR_IMMEDIATE)) { IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni->ni_macaddr, "ADDBA response", "policy mismatch: expecting %s, " "received %s, tid %d code %d", tap->txa_flags & IEEE80211_AGGR_IMMEDIATE, policy, tid, code); vap->iv_stats.is_addba_badpolicy++; return 0; } #if 0 /* XXX we take MIN in ieee80211_addba_response */ if (bufsiz > IEEE80211_AGGR_BAWMAX) { IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni->ni_macaddr, "ADDBA response", "BA window too large: max %d, " "received %d, tid %d code %d", bufsiz, IEEE80211_AGGR_BAWMAX, tid, code); vap->iv_stats.is_addba_badbawinsize++; return 0; } #endif - /* XXX TODO: check AMSDU in AMPDU configuration */ IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "recv ADDBA response: dialogtoken %u code %d " - "baparamset 0x%x (tid %d bufsiz %d) batimeout %d", - dialogtoken, code, baparamset, tid, bufsiz, + "baparamset 0x%x (tid %d bufsiz %d amsdu %d) batimeout %d", + dialogtoken, code, baparamset, tid, + bufsiz, + amsdu, batimeout); ic->ic_addba_response(ni, tap, code, baparamset, batimeout); return 0; } static int ht_recv_action_ba_delba(struct ieee80211_node *ni, const struct ieee80211_frame *wh, const uint8_t *frm, const uint8_t *efrm) { struct ieee80211com *ic = ni->ni_ic; struct ieee80211_rx_ampdu *rap; struct ieee80211_tx_ampdu *tap; uint16_t baparamset, code; int tid; baparamset = le16dec(frm+2); code = le16dec(frm+4); tid = MS(baparamset, IEEE80211_DELBAPS_TID); IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "recv DELBA: baparamset 0x%x (tid %d initiator %d) " "code %d", baparamset, tid, MS(baparamset, IEEE80211_DELBAPS_INIT), code); if ((baparamset & IEEE80211_DELBAPS_INIT) == 0) { tap = &ni->ni_tx_ampdu[tid]; ic->ic_addba_stop(ni, tap); } else { rap = &ni->ni_rx_ampdu[tid]; ic->ic_ampdu_rx_stop(ni, rap); } return 0; } static int ht_recv_action_ht_txchwidth(struct ieee80211_node *ni, const struct ieee80211_frame *wh, const uint8_t *frm, const uint8_t *efrm) { int chw; chw = (frm[2] == IEEE80211_A_HT_TXCHWIDTH_2040) ? 40 : 20; IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "%s: HT txchwidth, width %d%s", __func__, chw, ni->ni_chw != chw ? "*" : ""); if (chw != ni->ni_chw) { /* XXX does this need to change the ht40 station count? */ ni->ni_chw = chw; /* XXX notify on change */ } return 0; } static int ht_recv_action_ht_mimopwrsave(struct ieee80211_node *ni, const struct ieee80211_frame *wh, const uint8_t *frm, const uint8_t *efrm) { const struct ieee80211_action_ht_mimopowersave *mps = (const struct ieee80211_action_ht_mimopowersave *) frm; /* XXX check iv_htcaps */ if (mps->am_control & IEEE80211_A_HT_MIMOPWRSAVE_ENA) ni->ni_flags |= IEEE80211_NODE_MIMO_PS; else ni->ni_flags &= ~IEEE80211_NODE_MIMO_PS; if (mps->am_control & IEEE80211_A_HT_MIMOPWRSAVE_MODE) ni->ni_flags |= IEEE80211_NODE_MIMO_RTS; else ni->ni_flags &= ~IEEE80211_NODE_MIMO_RTS; /* XXX notify on change */ IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "%s: HT MIMO PS (%s%s)", __func__, (ni->ni_flags & IEEE80211_NODE_MIMO_PS) ? "on" : "off", (ni->ni_flags & IEEE80211_NODE_MIMO_RTS) ? "+rts" : "" ); return 0; } /* * Transmit processing. */ /* * Check if A-MPDU should be requested/enabled for a stream. * We require a traffic rate above a per-AC threshold and we * also handle backoff from previous failed attempts. * * Drivers may override this method to bring in information * such as link state conditions in making the decision. */ static int ieee80211_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) { struct ieee80211vap *vap = ni->ni_vap; if (tap->txa_avgpps < vap->iv_ampdu_mintraffic[TID_TO_WME_AC(tap->txa_tid)]) return 0; /* XXX check rssi? */ if (tap->txa_attempts >= ieee80211_addba_maxtries && ieee80211_time_after(ticks, tap->txa_nextrequest)) { /* * Don't retry too often; txa_nextrequest is set * to the minimum interval we'll retry after * ieee80211_addba_maxtries failed attempts are made. */ return 0; } IEEE80211_NOTE(vap, IEEE80211_MSG_11N, ni, "enable AMPDU on tid %d (%s), avgpps %d pkts %d attempt %d", tap->txa_tid, ieee80211_wme_acnames[TID_TO_WME_AC(tap->txa_tid)], tap->txa_avgpps, tap->txa_pkts, tap->txa_attempts); return 1; } /* * Request A-MPDU tx aggregation. Setup local state and * issue an ADDBA request. BA use will only happen after * the other end replies with ADDBA response. */ int ieee80211_ampdu_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) { struct ieee80211com *ic = ni->ni_ic; uint16_t args[5]; int tid, dialogtoken; static int tokens = 0; /* XXX */ /* XXX locking */ if ((tap->txa_flags & IEEE80211_AGGR_SETUP) == 0) { /* do deferred setup of state */ ampdu_tx_setup(tap); } /* XXX hack for not doing proper locking */ tap->txa_flags &= ~IEEE80211_AGGR_NAK; dialogtoken = (tokens+1) % 63; /* XXX */ tid = tap->txa_tid; /* * XXX TODO: This is racy with any other parallel TX going on. :( */ tap->txa_start = ni->ni_txseqs[tid]; args[0] = dialogtoken; args[1] = 0; /* NB: status code not used */ args[2] = IEEE80211_BAPS_POLICY_IMMEDIATE | SM(tid, IEEE80211_BAPS_TID) | SM(IEEE80211_AGGR_BAWMAX, IEEE80211_BAPS_BUFSIZ) ; - /* XXX TODO: check AMSDU in AMPDU configuration */ + /* XXX TODO: this should be a flag, not iv_htcaps */ + if ((ni->ni_flags & IEEE80211_NODE_AMSDU_TX) && + (ni->ni_vap->iv_htcaps & IEEE80211_HTC_TX_AMSDU_AMPDU)) + args[2] |= IEEE80211_BAPS_AMSDU; + args[3] = 0; /* batimeout */ /* NB: do first so there's no race against reply */ if (!ic->ic_addba_request(ni, tap, dialogtoken, args[2], args[3])) { /* unable to setup state, don't make request */ IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni, "%s: could not setup BA stream for TID %d AC %d", __func__, tap->txa_tid, TID_TO_WME_AC(tap->txa_tid)); /* defer next try so we don't slam the driver with requests */ tap->txa_attempts = ieee80211_addba_maxtries; /* NB: check in case driver wants to override */ if (tap->txa_nextrequest <= ticks) tap->txa_nextrequest = ticks + ieee80211_addba_backoff; return 0; } tokens = dialogtoken; /* allocate token */ /* NB: after calling ic_addba_request so driver can set txa_start */ args[4] = SM(tap->txa_start, IEEE80211_BASEQ_START) | SM(0, IEEE80211_BASEQ_FRAG) ; return ic->ic_send_action(ni, IEEE80211_ACTION_CAT_BA, IEEE80211_ACTION_BA_ADDBA_REQUEST, args); } /* * Terminate an AMPDU tx stream. State is reclaimed * and the peer notified with a DelBA Action frame. */ void ieee80211_ampdu_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int reason) { struct ieee80211com *ic = ni->ni_ic; struct ieee80211vap *vap = ni->ni_vap; uint16_t args[4]; /* XXX locking */ tap->txa_flags &= ~IEEE80211_AGGR_BARPEND; if (IEEE80211_AMPDU_RUNNING(tap)) { IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "%s: stop BA stream for TID %d (reason: %d (%s))", __func__, tap->txa_tid, reason, ieee80211_reason_to_string(reason)); vap->iv_stats.is_ampdu_stop++; ic->ic_addba_stop(ni, tap); args[0] = tap->txa_tid; args[1] = IEEE80211_DELBAPS_INIT; args[2] = reason; /* XXX reason code */ ic->ic_send_action(ni, IEEE80211_ACTION_CAT_BA, IEEE80211_ACTION_BA_DELBA, args); } else { IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "%s: BA stream for TID %d not running " "(reason: %d (%s))", __func__, tap->txa_tid, reason, ieee80211_reason_to_string(reason)); vap->iv_stats.is_ampdu_stop_failed++; } } /* XXX */ static void bar_start_timer(struct ieee80211_tx_ampdu *tap); static void bar_timeout(void *arg) { struct ieee80211_tx_ampdu *tap = arg; struct ieee80211_node *ni = tap->txa_ni; KASSERT((tap->txa_flags & IEEE80211_AGGR_XCHGPEND) == 0, ("bar/addba collision, flags 0x%x", tap->txa_flags)); IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni, "%s: tid %u flags 0x%x attempts %d", __func__, tap->txa_tid, tap->txa_flags, tap->txa_attempts); /* guard against race with bar_tx_complete */ if ((tap->txa_flags & IEEE80211_AGGR_BARPEND) == 0) return; /* XXX ? */ if (tap->txa_attempts >= ieee80211_bar_maxtries) { struct ieee80211com *ic = ni->ni_ic; ni->ni_vap->iv_stats.is_ampdu_bar_tx_fail++; /* * If (at least) the last BAR TX timeout was due to * an ieee80211_send_bar() failures, then we need * to make sure we notify the driver that a BAR * TX did occur and fail. This gives the driver * a chance to undo any queue pause that may * have occurred. */ ic->ic_bar_response(ni, tap, 1); ieee80211_ampdu_stop(ni, tap, IEEE80211_REASON_TIMEOUT); } else { ni->ni_vap->iv_stats.is_ampdu_bar_tx_retry++; if (ieee80211_send_bar(ni, tap, tap->txa_seqpending) != 0) { IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni, "%s: failed to TX, starting timer\n", __func__); /* * If ieee80211_send_bar() fails here, the * timer may have stopped and/or the pending * flag may be clear. Because of this, * fake the BARPEND and reset the timer. * A retransmission attempt will then occur * during the next timeout. */ /* XXX locking */ tap->txa_flags |= IEEE80211_AGGR_BARPEND; bar_start_timer(tap); } } } static void bar_start_timer(struct ieee80211_tx_ampdu *tap) { IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N, tap->txa_ni, "%s: called", __func__); callout_reset(&tap->txa_timer, ieee80211_bar_timeout, bar_timeout, tap); } static void bar_stop_timer(struct ieee80211_tx_ampdu *tap) { IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N, tap->txa_ni, "%s: called", __func__); callout_stop(&tap->txa_timer); } static void bar_tx_complete(struct ieee80211_node *ni, void *arg, int status) { struct ieee80211_tx_ampdu *tap = arg; IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni, "%s: tid %u flags 0x%x pending %d status %d", __func__, tap->txa_tid, tap->txa_flags, callout_pending(&tap->txa_timer), status); ni->ni_vap->iv_stats.is_ampdu_bar_tx++; /* XXX locking */ if ((tap->txa_flags & IEEE80211_AGGR_BARPEND) && callout_pending(&tap->txa_timer)) { struct ieee80211com *ic = ni->ni_ic; if (status == 0) /* ACK'd */ bar_stop_timer(tap); ic->ic_bar_response(ni, tap, status); /* NB: just let timer expire so we pace requests */ } } static void ieee80211_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, int status) { IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N, tap->txa_ni, "%s: called", __func__); if (status == 0) { /* got ACK */ IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_11N, ni, "BAR moves BA win <%u:%u> (%u frames) txseq %u tid %u", tap->txa_start, IEEE80211_SEQ_ADD(tap->txa_start, tap->txa_wnd-1), tap->txa_qframes, tap->txa_seqpending, tap->txa_tid); /* NB: timer already stopped in bar_tx_complete */ tap->txa_start = tap->txa_seqpending; tap->txa_flags &= ~IEEE80211_AGGR_BARPEND; } } /* * Transmit a BAR frame to the specified node. The * BAR contents are drawn from the supplied aggregation * state associated with the node. * * NB: we only handle immediate ACK w/ compressed bitmap. */ int ieee80211_send_bar(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, ieee80211_seq seq) { #define senderr(_x, _v) do { vap->iv_stats._v++; ret = _x; goto bad; } while (0) struct ieee80211vap *vap = ni->ni_vap; struct ieee80211com *ic = ni->ni_ic; struct ieee80211_frame_bar *bar; struct mbuf *m; uint16_t barctl, barseqctl; uint8_t *frm; int tid, ret; IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N, tap->txa_ni, "%s: called", __func__); if ((tap->txa_flags & IEEE80211_AGGR_RUNNING) == 0) { /* no ADDBA response, should not happen */ /* XXX stat+msg */ return EINVAL; } /* XXX locking */ bar_stop_timer(tap); ieee80211_ref_node(ni); m = ieee80211_getmgtframe(&frm, ic->ic_headroom, sizeof(*bar)); if (m == NULL) senderr(ENOMEM, is_tx_nobuf); if (!ieee80211_add_callback(m, bar_tx_complete, tap)) { m_freem(m); senderr(ENOMEM, is_tx_nobuf); /* XXX */ /* NOTREACHED */ } bar = mtod(m, struct ieee80211_frame_bar *); bar->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR; bar->i_fc[1] = 0; IEEE80211_ADDR_COPY(bar->i_ra, ni->ni_macaddr); IEEE80211_ADDR_COPY(bar->i_ta, vap->iv_myaddr); tid = tap->txa_tid; barctl = (tap->txa_flags & IEEE80211_AGGR_IMMEDIATE ? 0 : IEEE80211_BAR_NOACK) | IEEE80211_BAR_COMP | SM(tid, IEEE80211_BAR_TID) ; barseqctl = SM(seq, IEEE80211_BAR_SEQ_START); /* NB: known to have proper alignment */ bar->i_ctl = htole16(barctl); bar->i_seq = htole16(barseqctl); m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame_bar); M_WME_SETAC(m, WME_AC_VO); IEEE80211_NODE_STAT(ni, tx_mgmt); /* XXX tx_ctl? */ /* XXX locking */ /* init/bump attempts counter */ if ((tap->txa_flags & IEEE80211_AGGR_BARPEND) == 0) tap->txa_attempts = 1; else tap->txa_attempts++; tap->txa_seqpending = seq; tap->txa_flags |= IEEE80211_AGGR_BARPEND; IEEE80211_NOTE(vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_11N, ni, "send BAR: tid %u ctl 0x%x start %u (attempt %d)", tid, barctl, seq, tap->txa_attempts); /* * ic_raw_xmit will free the node reference * regardless of queue/TX success or failure. */ IEEE80211_TX_LOCK(ic); ret = ieee80211_raw_output(vap, ni, m, NULL); IEEE80211_TX_UNLOCK(ic); if (ret != 0) { IEEE80211_NOTE(vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_11N, ni, "send BAR: failed: (ret = %d)\n", ret); /* xmit failed, clear state flag */ tap->txa_flags &= ~IEEE80211_AGGR_BARPEND; vap->iv_stats.is_ampdu_bar_tx_fail++; return ret; } /* XXX hack against tx complete happening before timer is started */ if (tap->txa_flags & IEEE80211_AGGR_BARPEND) bar_start_timer(tap); return 0; bad: IEEE80211_NOTE(tap->txa_ni->ni_vap, IEEE80211_MSG_11N, tap->txa_ni, "%s: bad! ret=%d", __func__, ret); vap->iv_stats.is_ampdu_bar_tx_fail++; ieee80211_free_node(ni); return ret; #undef senderr } static int ht_action_output(struct ieee80211_node *ni, struct mbuf *m) { struct ieee80211_bpf_params params; memset(¶ms, 0, sizeof(params)); params.ibp_pri = WME_AC_VO; params.ibp_rate0 = ni->ni_txparms->mgmtrate; /* NB: we know all frames are unicast */ params.ibp_try0 = ni->ni_txparms->maxretry; params.ibp_power = ni->ni_txpower; return ieee80211_mgmt_output(ni, m, IEEE80211_FC0_SUBTYPE_ACTION, ¶ms); } #define ADDSHORT(frm, v) do { \ frm[0] = (v) & 0xff; \ frm[1] = (v) >> 8; \ frm += 2; \ } while (0) /* * Send an action management frame. The arguments are stuff * into a frame without inspection; the caller is assumed to * prepare them carefully (e.g. based on the aggregation state). */ static int ht_send_action_ba_addba(struct ieee80211_node *ni, int category, int action, void *arg0) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211com *ic = ni->ni_ic; uint16_t *args = arg0; struct mbuf *m; uint8_t *frm; IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "send ADDBA %s: dialogtoken %d status %d " - "baparamset 0x%x (tid %d) batimeout 0x%x baseqctl 0x%x", + "baparamset 0x%x (tid %d amsdu %d) batimeout 0x%x baseqctl 0x%x", (action == IEEE80211_ACTION_BA_ADDBA_REQUEST) ? "request" : "response", args[0], args[1], args[2], MS(args[2], IEEE80211_BAPS_TID), - args[3], args[4]); + MS(args[2], IEEE80211_BAPS_AMSDU), args[3], args[4]); IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); ieee80211_ref_node(ni); m = ieee80211_getmgtframe(&frm, ic->ic_headroom + sizeof(struct ieee80211_frame), sizeof(uint16_t) /* action+category */ /* XXX may action payload */ + sizeof(struct ieee80211_action_ba_addbaresponse) ); if (m != NULL) { *frm++ = category; *frm++ = action; *frm++ = args[0]; /* dialog token */ if (action == IEEE80211_ACTION_BA_ADDBA_RESPONSE) ADDSHORT(frm, args[1]); /* status code */ ADDSHORT(frm, args[2]); /* baparamset */ ADDSHORT(frm, args[3]); /* batimeout */ if (action == IEEE80211_ACTION_BA_ADDBA_REQUEST) ADDSHORT(frm, args[4]); /* baseqctl */ m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); return ht_action_output(ni, m); } else { vap->iv_stats.is_tx_nobuf++; ieee80211_free_node(ni); return ENOMEM; } } static int ht_send_action_ba_delba(struct ieee80211_node *ni, int category, int action, void *arg0) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211com *ic = ni->ni_ic; uint16_t *args = arg0; struct mbuf *m; uint16_t baparamset; uint8_t *frm; baparamset = SM(args[0], IEEE80211_DELBAPS_TID) | args[1] ; IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "send DELBA action: tid %d, initiator %d reason %d (%s)", args[0], args[1], args[2], ieee80211_reason_to_string(args[2])); IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); ieee80211_ref_node(ni); m = ieee80211_getmgtframe(&frm, ic->ic_headroom + sizeof(struct ieee80211_frame), sizeof(uint16_t) /* action+category */ /* XXX may action payload */ + sizeof(struct ieee80211_action_ba_addbaresponse) ); if (m != NULL) { *frm++ = category; *frm++ = action; ADDSHORT(frm, baparamset); ADDSHORT(frm, args[2]); /* reason code */ m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); return ht_action_output(ni, m); } else { vap->iv_stats.is_tx_nobuf++; ieee80211_free_node(ni); return ENOMEM; } } static int ht_send_action_ht_txchwidth(struct ieee80211_node *ni, int category, int action, void *arg0) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211com *ic = ni->ni_ic; struct mbuf *m; uint8_t *frm; IEEE80211_NOTE(vap, IEEE80211_MSG_ACTION | IEEE80211_MSG_11N, ni, "send HT txchwidth: width %d", IEEE80211_IS_CHAN_HT40(ni->ni_chan) ? 40 : 20); IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, "ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n", __func__, __LINE__, ni, ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)+1); ieee80211_ref_node(ni); m = ieee80211_getmgtframe(&frm, ic->ic_headroom + sizeof(struct ieee80211_frame), sizeof(uint16_t) /* action+category */ /* XXX may action payload */ + sizeof(struct ieee80211_action_ba_addbaresponse) ); if (m != NULL) { *frm++ = category; *frm++ = action; *frm++ = IEEE80211_IS_CHAN_HT40(ni->ni_chan) ? IEEE80211_A_HT_TXCHWIDTH_2040 : IEEE80211_A_HT_TXCHWIDTH_20; m->m_pkthdr.len = m->m_len = frm - mtod(m, uint8_t *); return ht_action_output(ni, m); } else { vap->iv_stats.is_tx_nobuf++; ieee80211_free_node(ni); return ENOMEM; } } #undef ADDSHORT /* * Construct the MCS bit mask for inclusion in an HT capabilities * information element. */ static void ieee80211_set_mcsset(struct ieee80211com *ic, uint8_t *frm) { int i; uint8_t txparams; KASSERT((ic->ic_rxstream > 0 && ic->ic_rxstream <= 4), ("ic_rxstream %d out of range", ic->ic_rxstream)); KASSERT((ic->ic_txstream > 0 && ic->ic_txstream <= 4), ("ic_txstream %d out of range", ic->ic_txstream)); for (i = 0; i < ic->ic_rxstream * 8; i++) setbit(frm, i); if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) && (ic->ic_htcaps & IEEE80211_HTC_RXMCS32)) setbit(frm, 32); if (ic->ic_htcaps & IEEE80211_HTC_RXUNEQUAL) { if (ic->ic_rxstream >= 2) { for (i = 33; i <= 38; i++) setbit(frm, i); } if (ic->ic_rxstream >= 3) { for (i = 39; i <= 52; i++) setbit(frm, i); } if (ic->ic_txstream >= 4) { for (i = 53; i <= 76; i++) setbit(frm, i); } } if (ic->ic_rxstream != ic->ic_txstream) { txparams = 0x1; /* TX MCS set defined */ txparams |= 0x2; /* TX RX MCS not equal */ txparams |= (ic->ic_txstream - 1) << 2; /* num TX streams */ if (ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL) txparams |= 0x16; /* TX unequal modulation sup */ } else txparams = 0; frm[12] = txparams; } /* * Add body of an HTCAP information element. */ static uint8_t * ieee80211_add_htcap_body(uint8_t *frm, struct ieee80211_node *ni) { #define ADDSHORT(frm, v) do { \ frm[0] = (v) & 0xff; \ frm[1] = (v) >> 8; \ frm += 2; \ } while (0) struct ieee80211com *ic = ni->ni_ic; struct ieee80211vap *vap = ni->ni_vap; uint16_t caps, extcaps; int rxmax, density; /* HT capabilities */ caps = vap->iv_htcaps & 0xffff; /* * Note channel width depends on whether we are operating as * a sta or not. When operating as a sta we are generating * a request based on our desired configuration. Otherwise * we are operational and the channel attributes identify * how we've been setup (which might be different if a fixed * channel is specified). */ if (vap->iv_opmode == IEEE80211_M_STA) { /* override 20/40 use based on config */ if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40) caps |= IEEE80211_HTCAP_CHWIDTH40; else caps &= ~IEEE80211_HTCAP_CHWIDTH40; /* Start by using the advertised settings */ rxmax = MS(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); density = MS(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); IEEE80211_DPRINTF(vap, IEEE80211_MSG_11N, "%s: advertised rxmax=%d, density=%d, vap rxmax=%d, density=%d\n", __func__, rxmax, density, vap->iv_ampdu_rxmax, vap->iv_ampdu_density); /* Cap at VAP rxmax */ if (rxmax > vap->iv_ampdu_rxmax) rxmax = vap->iv_ampdu_rxmax; /* * If the VAP ampdu density value greater, use that. * * (Larger density value == larger minimum gap between A-MPDU * subframes.) */ if (vap->iv_ampdu_density > density) density = vap->iv_ampdu_density; /* * NB: Hardware might support HT40 on some but not all * channels. We can't determine this earlier because only * after association the channel is upgraded to HT based * on the negotiated capabilities. */ if (ni->ni_chan != IEEE80211_CHAN_ANYC && findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT40U) == NULL && findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT40D) == NULL) caps &= ~IEEE80211_HTCAP_CHWIDTH40; } else { /* override 20/40 use based on current channel */ if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) caps |= IEEE80211_HTCAP_CHWIDTH40; else caps &= ~IEEE80211_HTCAP_CHWIDTH40; /* XXX TODO should it start by using advertised settings? */ rxmax = vap->iv_ampdu_rxmax; density = vap->iv_ampdu_density; } /* adjust short GI based on channel and config */ if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20) == 0) caps &= ~IEEE80211_HTCAP_SHORTGI20; if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40) == 0 || (caps & IEEE80211_HTCAP_CHWIDTH40) == 0) caps &= ~IEEE80211_HTCAP_SHORTGI40; /* adjust STBC based on receive capabilities */ if ((vap->iv_flags_ht & IEEE80211_FHT_STBC_RX) == 0) caps &= ~IEEE80211_HTCAP_RXSTBC; /* adjust LDPC based on receive capabilites */ if ((vap->iv_flags_ht & IEEE80211_FHT_LDPC_RX) == 0) caps &= ~IEEE80211_HTCAP_LDPC; ADDSHORT(frm, caps); /* HT parameters */ *frm = SM(rxmax, IEEE80211_HTCAP_MAXRXAMPDU) | SM(density, IEEE80211_HTCAP_MPDUDENSITY) ; frm++; /* pre-zero remainder of ie */ memset(frm, 0, sizeof(struct ieee80211_ie_htcap) - __offsetof(struct ieee80211_ie_htcap, hc_mcsset)); /* supported MCS set */ /* * XXX: For sta mode the rate set should be restricted based * on the AP's capabilities, but ni_htrates isn't setup when * we're called to form an AssocReq frame so for now we're * restricted to the device capabilities. */ ieee80211_set_mcsset(ni->ni_ic, frm); frm += __offsetof(struct ieee80211_ie_htcap, hc_extcap) - __offsetof(struct ieee80211_ie_htcap, hc_mcsset); /* HT extended capabilities */ extcaps = vap->iv_htextcaps & 0xffff; ADDSHORT(frm, extcaps); frm += sizeof(struct ieee80211_ie_htcap) - __offsetof(struct ieee80211_ie_htcap, hc_txbf); return frm; #undef ADDSHORT } /* * Add 802.11n HT capabilities information element */ uint8_t * ieee80211_add_htcap(uint8_t *frm, struct ieee80211_node *ni) { frm[0] = IEEE80211_ELEMID_HTCAP; frm[1] = sizeof(struct ieee80211_ie_htcap) - 2; return ieee80211_add_htcap_body(frm + 2, ni); } /* * Non-associated probe request - add HT capabilities based on * the current channel configuration. */ static uint8_t * ieee80211_add_htcap_body_ch(uint8_t *frm, struct ieee80211vap *vap, struct ieee80211_channel *c) { #define ADDSHORT(frm, v) do { \ frm[0] = (v) & 0xff; \ frm[1] = (v) >> 8; \ frm += 2; \ } while (0) struct ieee80211com *ic = vap->iv_ic; uint16_t caps, extcaps; int rxmax, density; /* HT capabilities */ caps = vap->iv_htcaps & 0xffff; /* * We don't use this in STA mode; only in IBSS mode. * So in IBSS mode we base our HTCAP flags on the * given channel. */ /* override 20/40 use based on current channel */ if (IEEE80211_IS_CHAN_HT40(c)) caps |= IEEE80211_HTCAP_CHWIDTH40; else caps &= ~IEEE80211_HTCAP_CHWIDTH40; /* Use the currently configured values */ rxmax = vap->iv_ampdu_rxmax; density = vap->iv_ampdu_density; /* adjust short GI based on channel and config */ if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20) == 0) caps &= ~IEEE80211_HTCAP_SHORTGI20; if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40) == 0 || (caps & IEEE80211_HTCAP_CHWIDTH40) == 0) caps &= ~IEEE80211_HTCAP_SHORTGI40; ADDSHORT(frm, caps); /* HT parameters */ *frm = SM(rxmax, IEEE80211_HTCAP_MAXRXAMPDU) | SM(density, IEEE80211_HTCAP_MPDUDENSITY) ; frm++; /* pre-zero remainder of ie */ memset(frm, 0, sizeof(struct ieee80211_ie_htcap) - __offsetof(struct ieee80211_ie_htcap, hc_mcsset)); /* supported MCS set */ /* * XXX: For sta mode the rate set should be restricted based * on the AP's capabilities, but ni_htrates isn't setup when * we're called to form an AssocReq frame so for now we're * restricted to the device capabilities. */ ieee80211_set_mcsset(ic, frm); frm += __offsetof(struct ieee80211_ie_htcap, hc_extcap) - __offsetof(struct ieee80211_ie_htcap, hc_mcsset); /* HT extended capabilities */ extcaps = vap->iv_htextcaps & 0xffff; ADDSHORT(frm, extcaps); frm += sizeof(struct ieee80211_ie_htcap) - __offsetof(struct ieee80211_ie_htcap, hc_txbf); return frm; #undef ADDSHORT } /* * Add 802.11n HT capabilities information element */ uint8_t * ieee80211_add_htcap_ch(uint8_t *frm, struct ieee80211vap *vap, struct ieee80211_channel *c) { frm[0] = IEEE80211_ELEMID_HTCAP; frm[1] = sizeof(struct ieee80211_ie_htcap) - 2; return ieee80211_add_htcap_body_ch(frm + 2, vap, c); } /* * Add Broadcom OUI wrapped standard HTCAP ie; this is * used for compatibility w/ pre-draft implementations. */ uint8_t * ieee80211_add_htcap_vendor(uint8_t *frm, struct ieee80211_node *ni) { frm[0] = IEEE80211_ELEMID_VENDOR; frm[1] = 4 + sizeof(struct ieee80211_ie_htcap) - 2; frm[2] = (BCM_OUI >> 0) & 0xff; frm[3] = (BCM_OUI >> 8) & 0xff; frm[4] = (BCM_OUI >> 16) & 0xff; frm[5] = BCM_OUI_HTCAP; return ieee80211_add_htcap_body(frm + 6, ni); } /* * Construct the MCS bit mask of basic rates * for inclusion in an HT information element. */ static void ieee80211_set_basic_htrates(uint8_t *frm, const struct ieee80211_htrateset *rs) { int i; for (i = 0; i < rs->rs_nrates; i++) { int r = rs->rs_rates[i] & IEEE80211_RATE_VAL; if ((rs->rs_rates[i] & IEEE80211_RATE_BASIC) && r < IEEE80211_HTRATE_MAXSIZE) { /* NB: this assumes a particular implementation */ setbit(frm, r); } } } /* * Update the HTINFO ie for a beacon frame. */ void ieee80211_ht_update_beacon(struct ieee80211vap *vap, struct ieee80211_beacon_offsets *bo) { #define PROTMODE (IEEE80211_HTINFO_OPMODE|IEEE80211_HTINFO_NONHT_PRESENT) struct ieee80211_node *ni; const struct ieee80211_channel *bsschan; struct ieee80211com *ic = vap->iv_ic; struct ieee80211_ie_htinfo *ht = (struct ieee80211_ie_htinfo *) bo->bo_htinfo; ni = ieee80211_ref_node(vap->iv_bss); bsschan = ni->ni_chan; /* XXX only update on channel change */ ht->hi_ctrlchannel = ieee80211_chan2ieee(ic, bsschan); if (vap->iv_flags_ht & IEEE80211_FHT_RIFS) ht->hi_byte1 = IEEE80211_HTINFO_RIFSMODE_PERM; else ht->hi_byte1 = IEEE80211_HTINFO_RIFSMODE_PROH; if (IEEE80211_IS_CHAN_HT40U(bsschan)) ht->hi_byte1 |= IEEE80211_HTINFO_2NDCHAN_ABOVE; else if (IEEE80211_IS_CHAN_HT40D(bsschan)) ht->hi_byte1 |= IEEE80211_HTINFO_2NDCHAN_BELOW; else ht->hi_byte1 |= IEEE80211_HTINFO_2NDCHAN_NONE; if (IEEE80211_IS_CHAN_HT40(bsschan)) ht->hi_byte1 |= IEEE80211_HTINFO_TXWIDTH_2040; /* protection mode */ ht->hi_byte2 = (ht->hi_byte2 &~ PROTMODE) | ic->ic_curhtprotmode; ieee80211_free_node(ni); /* XXX propagate to vendor ie's */ #undef PROTMODE } /* * Add body of an HTINFO information element. * * NB: We don't use struct ieee80211_ie_htinfo because we can * be called to fillin both a standard ie and a compat ie that * has a vendor OUI at the front. */ static uint8_t * ieee80211_add_htinfo_body(uint8_t *frm, struct ieee80211_node *ni) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211com *ic = ni->ni_ic; /* pre-zero remainder of ie */ memset(frm, 0, sizeof(struct ieee80211_ie_htinfo) - 2); /* primary/control channel center */ *frm++ = ieee80211_chan2ieee(ic, ni->ni_chan); if (vap->iv_flags_ht & IEEE80211_FHT_RIFS) frm[0] = IEEE80211_HTINFO_RIFSMODE_PERM; else frm[0] = IEEE80211_HTINFO_RIFSMODE_PROH; if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) frm[0] |= IEEE80211_HTINFO_2NDCHAN_ABOVE; else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) frm[0] |= IEEE80211_HTINFO_2NDCHAN_BELOW; else frm[0] |= IEEE80211_HTINFO_2NDCHAN_NONE; if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) frm[0] |= IEEE80211_HTINFO_TXWIDTH_2040; frm[1] = ic->ic_curhtprotmode; frm += 5; /* basic MCS set */ ieee80211_set_basic_htrates(frm, &ni->ni_htrates); frm += sizeof(struct ieee80211_ie_htinfo) - __offsetof(struct ieee80211_ie_htinfo, hi_basicmcsset); return frm; } /* * Add 802.11n HT information element. */ uint8_t * ieee80211_add_htinfo(uint8_t *frm, struct ieee80211_node *ni) { frm[0] = IEEE80211_ELEMID_HTINFO; frm[1] = sizeof(struct ieee80211_ie_htinfo) - 2; return ieee80211_add_htinfo_body(frm + 2, ni); } /* * Add Broadcom OUI wrapped standard HTINFO ie; this is * used for compatibility w/ pre-draft implementations. */ uint8_t * ieee80211_add_htinfo_vendor(uint8_t *frm, struct ieee80211_node *ni) { frm[0] = IEEE80211_ELEMID_VENDOR; frm[1] = 4 + sizeof(struct ieee80211_ie_htinfo) - 2; frm[2] = (BCM_OUI >> 0) & 0xff; frm[3] = (BCM_OUI >> 8) & 0xff; frm[4] = (BCM_OUI >> 16) & 0xff; frm[5] = BCM_OUI_HTINFO; return ieee80211_add_htinfo_body(frm + 6, ni); } Index: head/sys/net80211/ieee80211_ht.h =================================================================== --- head/sys/net80211/ieee80211_ht.h (revision 361824) +++ head/sys/net80211/ieee80211_ht.h (revision 361825) @@ -1,234 +1,243 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2007-2008 Sam Leffler, Errno Consulting * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _NET80211_IEEE80211_HT_H_ #define _NET80211_IEEE80211_HT_H_ /* * 802.11n protocol implementation definitions. */ #define IEEE80211_AGGR_BAWMAX 64 /* max block ack window size */ /* threshold for aging overlapping non-HT bss */ #define IEEE80211_NONHT_PRESENT_AGE msecs_to_ticks(60*1000) struct ieee80211_tx_ampdu { struct ieee80211_node *txa_ni; /* back pointer */ u_short txa_flags; #define IEEE80211_AGGR_IMMEDIATE 0x0001 /* BA policy */ #define IEEE80211_AGGR_XCHGPEND 0x0002 /* ADDBA response pending */ #define IEEE80211_AGGR_RUNNING 0x0004 /* ADDBA response received */ #define IEEE80211_AGGR_SETUP 0x0008 /* deferred state setup */ #define IEEE80211_AGGR_NAK 0x0010 /* peer NAK'd ADDBA request */ #define IEEE80211_AGGR_BARPEND 0x0020 /* BAR response pending */ #define IEEE80211_AGGR_WAITRX 0x0040 /* Wait for first RX frame to define BAW */ +#define IEEE80211_AGGR_AMSDU 0x0080 /* A-MSDU in A-MPDU TX allowed */ uint8_t txa_tid; uint8_t txa_token; /* dialog token */ int txa_lastsample; /* ticks @ last traffic sample */ int txa_pkts; /* packets over last sample interval */ int txa_avgpps; /* filtered traffic over window */ int txa_qbytes; /* data queued (bytes) */ short txa_qframes; /* data queued (frames) */ ieee80211_seq txa_start; /* BA window left edge */ ieee80211_seq txa_seqpending; /* new txa_start pending BAR response */ uint16_t txa_wnd; /* BA window size */ uint8_t txa_attempts; /* # ADDBA/BAR requests w/o a response*/ int txa_nextrequest;/* soonest to make next request */ struct callout txa_timer; void *txa_private; /* driver-private storage */ uint64_t txa_pad[4]; }; /* return non-zero if AMPDU tx for the TID is running */ #define IEEE80211_AMPDU_RUNNING(tap) \ (((tap)->txa_flags & IEEE80211_AGGR_RUNNING) != 0) + +/* + * Return non-zero if AMPDU tx for the TID is running and we can do + * A-MSDU in A-MPDU + */ +#define IEEE80211_AMPDU_RUNNING_AMSDU(tap) \ + ((((tap)->txa_flags & (IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_AMSDU)) \ + == (IEEE80211_AGGR_RUNNING | IEEE80211_AGGR_AMSDU)) /* return non-zero if AMPDU tx for the TID was NACKed */ #define IEEE80211_AMPDU_NACKED(tap)\ (!! ((tap)->txa_flags & IEEE80211_AGGR_NAK)) /* return non-zero if AMPDU tx for the TID is running or started */ #define IEEE80211_AMPDU_REQUESTED(tap) \ (((tap)->txa_flags & \ (IEEE80211_AGGR_RUNNING|IEEE80211_AGGR_XCHGPEND|IEEE80211_AGGR_NAK)) != 0) #define IEEE80211_AGGR_BITS \ "\20\1IMMEDIATE\2XCHGPEND\3RUNNING\4SETUP\5NAK" /* * Traffic estimator support. We estimate packets/sec for * each AC that is setup for AMPDU or will potentially be * setup for AMPDU. The traffic rate can be used to decide * when AMPDU should be setup (according to a threshold) * and is available for drivers to do things like cache * eviction when only a limited number of BA streams are * available and more streams are requested than available. */ static __inline void ieee80211_txampdu_init_pps(struct ieee80211_tx_ampdu *tap) { /* * Reset packet estimate. */ tap->txa_lastsample = ticks; tap->txa_avgpps = 0; } static __inline void ieee80211_txampdu_update_pps(struct ieee80211_tx_ampdu *tap) { /* NB: scale factor of 2 was picked heuristically */ tap->txa_avgpps = ((tap->txa_avgpps << 2) - tap->txa_avgpps + tap->txa_pkts) >> 2; } /* * Count a packet towards the pps estimate. */ static __inline void ieee80211_txampdu_count_packet(struct ieee80211_tx_ampdu *tap) { /* XXX bound loop/do more crude estimate? */ while (ticks - tap->txa_lastsample >= hz) { ieee80211_txampdu_update_pps(tap); /* reset to start new sample interval */ tap->txa_pkts = 0; if (tap->txa_avgpps == 0) { tap->txa_lastsample = ticks; break; } tap->txa_lastsample += hz; } tap->txa_pkts++; } /* * Get the current pps estimate. If the average is out of * date due to lack of traffic then we decay the estimate * to account for the idle time. */ static __inline int ieee80211_txampdu_getpps(struct ieee80211_tx_ampdu *tap) { /* XXX bound loop/do more crude estimate? */ while (ticks - tap->txa_lastsample >= hz) { ieee80211_txampdu_update_pps(tap); tap->txa_pkts = 0; if (tap->txa_avgpps == 0) { tap->txa_lastsample = ticks; break; } tap->txa_lastsample += hz; } return tap->txa_avgpps; } struct ieee80211_rx_ampdu { int rxa_flags; int rxa_qbytes; /* data queued (bytes) */ short rxa_qframes; /* data queued (frames) */ ieee80211_seq rxa_seqstart; ieee80211_seq rxa_start; /* start of current BA window */ uint16_t rxa_wnd; /* BA window size */ int rxa_age; /* age of oldest frame in window */ int rxa_nframes; /* frames since ADDBA */ struct mbuf *rxa_m[IEEE80211_AGGR_BAWMAX]; void *rxa_private; uint64_t rxa_pad[3]; }; void ieee80211_ht_attach(struct ieee80211com *); void ieee80211_ht_detach(struct ieee80211com *); void ieee80211_ht_vattach(struct ieee80211vap *); void ieee80211_ht_vdetach(struct ieee80211vap *); void ieee80211_ht_announce(struct ieee80211com *); struct ieee80211_mcs_rates { uint16_t ht20_rate_800ns; uint16_t ht20_rate_400ns; uint16_t ht40_rate_800ns; uint16_t ht40_rate_400ns; }; extern const struct ieee80211_mcs_rates ieee80211_htrates[]; void ieee80211_init_suphtrates(struct ieee80211com *); struct ieee80211_node; int ieee80211_setup_htrates(struct ieee80211_node *, const uint8_t *htcap, int flags); void ieee80211_setup_basic_htrates(struct ieee80211_node *, const uint8_t *htinfo); struct mbuf *ieee80211_decap_amsdu(struct ieee80211_node *, struct mbuf *); int ieee80211_ampdu_reorder(struct ieee80211_node *, struct mbuf *, const struct ieee80211_rx_stats *); void ieee80211_recv_bar(struct ieee80211_node *, struct mbuf *); void ieee80211_ht_node_init(struct ieee80211_node *); void ieee80211_ht_node_cleanup(struct ieee80211_node *); void ieee80211_ht_node_age(struct ieee80211_node *); struct ieee80211_channel *ieee80211_ht_adjust_channel(struct ieee80211com *, struct ieee80211_channel *, int); void ieee80211_ht_wds_init(struct ieee80211_node *); void ieee80211_ht_node_join(struct ieee80211_node *); void ieee80211_ht_node_leave(struct ieee80211_node *); void ieee80211_htprot_update(struct ieee80211com *, int protmode); void ieee80211_ht_timeout(struct ieee80211com *); void ieee80211_parse_htcap(struct ieee80211_node *, const uint8_t *); void ieee80211_parse_htinfo(struct ieee80211_node *, const uint8_t *); void ieee80211_ht_updateparams(struct ieee80211_node *, const uint8_t *, const uint8_t *); int ieee80211_ht_updateparams_final(struct ieee80211_node *, const uint8_t *, const uint8_t *); void ieee80211_ht_updatehtcap(struct ieee80211_node *, const uint8_t *); void ieee80211_ht_updatehtcap_final(struct ieee80211_node *); int ieee80211_ampdu_request(struct ieee80211_node *, struct ieee80211_tx_ampdu *); void ieee80211_ampdu_stop(struct ieee80211_node *, struct ieee80211_tx_ampdu *, int); int ieee80211_send_bar(struct ieee80211_node *, struct ieee80211_tx_ampdu *, ieee80211_seq); uint8_t *ieee80211_add_htcap(uint8_t *, struct ieee80211_node *); uint8_t *ieee80211_add_htcap_ch(uint8_t *, struct ieee80211vap *, struct ieee80211_channel *); uint8_t *ieee80211_add_htcap_vendor(uint8_t *, struct ieee80211_node *); uint8_t *ieee80211_add_htinfo(uint8_t *, struct ieee80211_node *); uint8_t *ieee80211_add_htinfo_vendor(uint8_t *, struct ieee80211_node *); struct ieee80211_beacon_offsets; void ieee80211_ht_update_beacon(struct ieee80211vap *, struct ieee80211_beacon_offsets *); int ieee80211_ampdu_rx_start_ext(struct ieee80211_node *ni, int tid, int seq, int baw); void ieee80211_ampdu_rx_stop_ext(struct ieee80211_node *ni, int tid); int ieee80211_ampdu_tx_request_ext(struct ieee80211_node *ni, int tid); int ieee80211_ampdu_tx_request_active_ext(struct ieee80211_node *ni, int tid, int status); #endif /* _NET80211_IEEE80211_HT_H_ */