mirror of https://github.com/proski/madwifi
99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/*
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* Copyright (c) 2004 Atheros Communications Inc. All rights reserved.
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*
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* $Id$
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*/
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#ifndef _NET_IF_ATH_PROTO_H_
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#define _NET_IF_ATH_PROTO_H_
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/*
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* Atheros proprietary protocol info.
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*/
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/*
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* Atheros RSSI, Signal, Noise, etc.
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*/
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#define ATH_DEFAULT_NOISE -95 /* dBm */
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/*
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* Atheros proprietary SuperG defines.
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*/
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#define ATH_ETH_TYPE 0x88bd
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#define ATH_SNAP_ORGCODE_0 0x00
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#define ATH_SNAP_ORGCODE_1 0x03
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#define ATH_SNAP_ORGCODE_2 0x7f
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struct athl2p_tunnel_hdr {
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#if (_BYTE_ORDER == _LITTLE_ENDIAN)
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u_int32_t offset:11,
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seqNum:11,
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optHdrLen32:2,
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frameType:2,
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proto:6;
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#else /* big endian */
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u_int32_t proto:6,
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frameType:2,
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optHdrLen32:2,
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seqNum:11,
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offset:11;
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#endif
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} __packed;
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/*
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* The following defines control compiling Atheros-specific features
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* (see BuildCaps.inc):
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*
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* ATH_SUPERG_FF
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* set to 1 for fast-frame
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*/
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#define ATH_L2TUNNEL_PROTO_FF 0
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/* FF max payload:
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* 802.2 + FFHDR + HPAD + 802.3 + 802.2 + 1500 + SPAD + 802.3 + 802.2 + 1500:
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* 8 + 4 + 4 + 14 + 8 + 1500 + 6 + 14 + 8 + 1500
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* = 3066
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*/
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#define ATH_FF_MAX_HDR_PAD 4
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#define ATH_FF_MAX_SEP_PAD 6
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#define ATH_FF_MAX_HDR 30
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#define ATH_FF_MAX_PAYLOAD 3066
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#define ATH_FF_MAX_LEN (ATH_FF_MAX_PAYLOAD + IEEE80211_CRC_LEN + \
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(IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
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/*
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* Store a magic number in skb->cb[] area to indicate FF within driver.
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* Offset of 8B into cb[] is used to preserve vlan tag info.
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*/
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#define ATH_FF_MAGIC_PUT(_skb) \
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(SKB_CB(_skb)->flags |= M_FF)
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#define ATH_FF_MAGIC_CLR(_skb) \
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(SKB_CB(_skb)->flags &= ~M_FF)
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#define ATH_FF_MAGIC_PRESENT(_skb) \
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((SKB_CB(_skb)->flags & M_FF) != 0)
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/*
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* default value for the minimum txq depth required for an ath_buf to be
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* placed on the FF staging queue. this value should be >=3 due to interaction
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* with HW compression.
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*/
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#define ATH_FF_TXQMIN 3
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/*
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* default maximum age an ath_buf is allowed to remain on the staging queue.
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* When this number of ath_bufs have been queued on the txq, after an ath_buf
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* was placed on the staging queue, that ath_buf on the staging queue will be
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* flushed.
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*/
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#define ATH_FF_STAGEQAGEMAX 5
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/*
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* Reserve enough buffer header length to avoid reallocation on fast-frame
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* rx and tx.
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*/
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#define USE_HEADERLEN_RESV 1
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#endif /* _NET_IF_ATH_PROTO_H_ */
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