1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2009 Sam Leffler, Errno Consulting
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27 #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
ieee80211_amsdu_tx_ok(struct ieee80211_node * ni)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
ieee80211_ff_age_all(struct ieee80211com * ic,int quanta)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
ieee80211_ff_flush(struct ieee80211com * ic,int ac)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
ieee80211_ff_flush_all(struct ieee80211com * ic)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 *
ieee80211_decap_fastframe(struct ieee80211vap * vap,struct ieee80211_node * ni,struct mbuf * m)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