1 /*- 2 * Copyright (c) 2009 Sam Leffler, Errno Consulting 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 #ifndef _NET80211_IEEE80211_SUPERG_H_ 28 #define _NET80211_IEEE80211_SUPERG_H_ 29 30 /* 31 * Atheros' 802.11 SuperG protocol support. 32 */ 33 34 /* 35 * Atheros advanced capability information element. 36 */ 37 struct ieee80211_ath_ie { 38 uint8_t ath_id; /* IEEE80211_ELEMID_VENDOR */ 39 uint8_t ath_len; /* length in bytes */ 40 uint8_t ath_oui[3]; /* ATH_OUI */ 41 uint8_t ath_oui_type; /* ATH_OUI_TYPE */ 42 uint8_t ath_oui_subtype; /* ATH_OUI_SUBTYPE */ 43 uint8_t ath_version; /* spec revision */ 44 uint8_t ath_capability; /* capability info */ 45 #define ATHEROS_CAP_TURBO_PRIME 0x01 /* dynamic turbo--aka Turbo' */ 46 #define ATHEROS_CAP_COMPRESSION 0x02 /* data compression */ 47 #define ATHEROS_CAP_FAST_FRAME 0x04 /* fast (jumbo) frames */ 48 #define ATHEROS_CAP_XR 0x08 /* Xtended Range support */ 49 #define ATHEROS_CAP_AR 0x10 /* Advanded Radar support */ 50 #define ATHEROS_CAP_BURST 0x20 /* Bursting - not negotiated */ 51 #define ATHEROS_CAP_WME 0x40 /* CWMin tuning */ 52 #define ATHEROS_CAP_BOOST 0x80 /* use turbo/!turbo mode */ 53 uint8_t ath_defkeyix[2]; 54 } __packed; 55 56 #define ATH_OUI_VERSION 0x00 57 #define ATH_OUI_SUBTYPE 0x01 58 59 #ifdef _KERNEL 60 struct ieee80211_stageq { 61 struct mbuf *head; /* frames linked w/ m_nextpkt */ 62 struct mbuf *tail; /* last frame in queue */ 63 int depth; /* # items on head */ 64 }; 65 66 struct ieee80211_superg { 67 /* fast-frames staging q */ 68 struct ieee80211_stageq ff_stageq[WME_NUM_AC]; 69 /* flush queues automatically */ 70 struct timeout_task ff_qtimer; 71 }; 72 73 void ieee80211_superg_attach(struct ieee80211com *); 74 void ieee80211_superg_detach(struct ieee80211com *); 75 void ieee80211_superg_vattach(struct ieee80211vap *); 76 void ieee80211_superg_vdetach(struct ieee80211vap *); 77 78 uint8_t *ieee80211_add_ath(uint8_t *, uint8_t, ieee80211_keyix); 79 uint8_t *ieee80211_add_athcaps(uint8_t *, const struct ieee80211_node *); 80 void ieee80211_parse_ath(struct ieee80211_node *, uint8_t *); 81 int ieee80211_parse_athparams(struct ieee80211_node *, uint8_t *, 82 const struct ieee80211_frame *); 83 84 void ieee80211_ff_node_init(struct ieee80211_node *); 85 void ieee80211_ff_node_cleanup(struct ieee80211_node *); 86 87 static inline int 88 ieee80211_amsdu_tx_ok(struct ieee80211_node *ni) 89 { 90 91 /* First: software A-MSDU transmit? */ 92 if ((ni->ni_ic->ic_caps & IEEE80211_C_SWAMSDUTX) == 0) 93 return (0); 94 95 /* Next: does the VAP have AMSDU TX enabled? */ 96 if ((ni->ni_vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX) == 0) 97 return (0); 98 99 /* Next: 11n node? (assumed that A-MSDU TX to HT nodes is ok */ 100 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) 101 return (0); 102 103 /* ok, we can at least /do/ AMSDU to this node */ 104 return (1); 105 } 106 107 struct mbuf * ieee80211_amsdu_check(struct ieee80211_node *ni, struct mbuf *m); 108 struct mbuf *ieee80211_ff_check(struct ieee80211_node *, struct mbuf *); 109 void ieee80211_ff_age(struct ieee80211com *, struct ieee80211_stageq *, 110 int quanta); 111 112 static __inline void 113 ieee80211_ff_age_all(struct ieee80211com *ic, int quanta) 114 { 115 struct ieee80211_superg *sg = ic->ic_superg; 116 117 if (sg != NULL) { 118 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_VO], quanta); 119 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_VI], quanta); 120 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_BE], quanta); 121 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_BK], quanta); 122 } 123 } 124 125 static __inline void 126 ieee80211_ff_flush(struct ieee80211com *ic, int ac) 127 { 128 struct ieee80211_superg *sg = ic->ic_superg; 129 130 if (sg != NULL) 131 ieee80211_ff_age(ic, &sg->ff_stageq[ac], 0x7fffffff); 132 } 133 134 static __inline void 135 ieee80211_ff_flush_all(struct ieee80211com *ic) 136 { 137 ieee80211_ff_age_all(ic, 0x7fffffff); 138 } 139 140 struct mbuf *ieee80211_ff_encap(struct ieee80211vap *, struct mbuf *, 141 int, struct ieee80211_key *); 142 struct mbuf * ieee80211_amsdu_encap(struct ieee80211vap *vap, struct mbuf *m1, 143 int hdrspace, struct ieee80211_key *key); 144 145 struct mbuf *ieee80211_ff_decap(struct ieee80211_node *, struct mbuf *); 146 147 static __inline struct mbuf * 148 ieee80211_decap_fastframe(struct ieee80211vap *vap, struct ieee80211_node *ni, 149 struct mbuf *m) 150 { 151 return IEEE80211_ATH_CAP(vap, ni, IEEE80211_NODE_FF) ? 152 ieee80211_ff_decap(ni, m) : m; 153 } 154 #endif /* _KERNEL */ 155 #endif /* _NET80211_IEEE80211_SUPERG_H_ */ 156