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 }; 70 71 void ieee80211_superg_attach(struct ieee80211com *); 72 void ieee80211_superg_detach(struct ieee80211com *); 73 void ieee80211_superg_vattach(struct ieee80211vap *); 74 void ieee80211_superg_vdetach(struct ieee80211vap *); 75 76 uint8_t *ieee80211_add_ath(uint8_t *, uint8_t, ieee80211_keyix); 77 uint8_t *ieee80211_add_athcaps(uint8_t *, const struct ieee80211_node *); 78 void ieee80211_parse_ath(struct ieee80211_node *, uint8_t *); 79 int ieee80211_parse_athparams(struct ieee80211_node *, uint8_t *, 80 const struct ieee80211_frame *); 81 82 void ieee80211_ff_node_init(struct ieee80211_node *); 83 void ieee80211_ff_node_cleanup(struct ieee80211_node *); 84 85 static inline int 86 ieee80211_amsdu_tx_ok(struct ieee80211_node *ni) 87 { 88 89 /* First: software A-MSDU transmit? */ 90 if ((ni->ni_ic->ic_caps & IEEE80211_C_SWAMSDUTX) == 0) 91 return (0); 92 93 /* Next: does the VAP have AMSDU TX enabled? */ 94 if ((ni->ni_vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX) == 0) 95 return (0); 96 97 /* Next: 11n node? (assumed that A-MSDU TX to HT nodes is ok */ 98 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) 99 return (0); 100 101 /* ok, we can at least /do/ AMSDU to this node */ 102 return (1); 103 } 104 105 struct mbuf * ieee80211_amsdu_check(struct ieee80211_node *ni, struct mbuf *m); 106 struct mbuf *ieee80211_ff_check(struct ieee80211_node *, struct mbuf *); 107 void ieee80211_ff_age(struct ieee80211com *, struct ieee80211_stageq *, 108 int quanta); 109 110 /* 111 * See ieee80211_ff_age() for a description of the locking 112 * expectation here. 113 */ 114 static __inline void 115 ieee80211_ff_flush(struct ieee80211com *ic, int ac) 116 { 117 struct ieee80211_superg *sg = ic->ic_superg; 118 119 if (sg != NULL && sg->ff_stageq[ac].depth) 120 ieee80211_ff_age(ic, &sg->ff_stageq[ac], 0x7fffffff); 121 } 122 123 /* 124 * See ieee80211_ff_age() for a description of the locking 125 * expectation here. 126 */ 127 static __inline void 128 ieee80211_ff_age_all(struct ieee80211com *ic, int quanta) 129 { 130 struct ieee80211_superg *sg = ic->ic_superg; 131 132 if (sg != NULL) { 133 if (sg->ff_stageq[WME_AC_VO].depth) 134 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_VO], quanta); 135 if (sg->ff_stageq[WME_AC_VI].depth) 136 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_VI], quanta); 137 if (sg->ff_stageq[WME_AC_BE].depth) 138 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_BE], quanta); 139 if (sg->ff_stageq[WME_AC_BK].depth) 140 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_BK], quanta); 141 } 142 } 143 144 struct mbuf *ieee80211_ff_encap(struct ieee80211vap *, struct mbuf *, 145 int, struct ieee80211_key *); 146 struct mbuf * ieee80211_amsdu_encap(struct ieee80211vap *vap, struct mbuf *m1, 147 int hdrspace, struct ieee80211_key *key); 148 149 struct mbuf *ieee80211_ff_decap(struct ieee80211_node *, struct mbuf *); 150 151 static __inline struct mbuf * 152 ieee80211_decap_fastframe(struct ieee80211vap *vap, struct ieee80211_node *ni, 153 struct mbuf *m) 154 { 155 return IEEE80211_ATH_CAP(vap, ni, IEEE80211_NODE_FF) ? 156 ieee80211_ff_decap(ni, m) : m; 157 } 158 #endif /* _KERNEL */ 159 #endif /* _NET80211_IEEE80211_SUPERG_H_ */ 160