/* * Copyright (c) 2004 Atheros Communications Inc.  All rights reserved. * * $Id: if_athproto.h 1495 2006-04-06 04:14:07Z jbicket $ */#ifndef _NET_IF_ATH_PROTO_H_#define _NET_IF_ATH_PROTO_H_/* * Atheros proprietary protocol info. *//* * Atheros proprietary SuperG defines. */#define ATH_ETH_TYPE  		0x88bd#define ATH_SNAP_ORGCODE_0	0x00#define ATH_SNAP_ORGCODE_1	0x03#define ATH_SNAP_ORGCODE_2	0x7fstruct athl2p_tunnel_hdr {#if (_BYTE_ORDER == _LITTLE_ENDIAN)	u_int32_t offset:11,	seqNum:11,	optHdrLen32:2,	frameType:2,	proto:6;#else /* big endian */	u_int32_t proto:6,	frameType:2,	optHdrLen32:2,	seqNum:11,	offset:11;#endif} __packed;/* * The following defines control compiling Atheros-specific features * (see BuildCaps.inc): * *   ATH_SUPERG_FF  *      set to 1 for fast-frame */#define ATH_L2TUNNEL_PROTO_FF 0/* FF max payload:  * 802.2 + FFHDR + HPAD + 802.3 + 802.2 + 1500 + SPAD + 802.3 + 802.2 + 1500: *   8   +   4   +  4   +   14  +   8   + 1500 +  6   +   14  +   8   + 1500 * = 3066 */ #define ATH_FF_MAX_HDR_PAD	4#define ATH_FF_MAX_SEP_PAD	6#define ATH_FF_MAX_HDR		30#define ATH_FF_MAX_PAYLOAD 	3066#define ATH_FF_MAX_LEN (ATH_FF_MAX_PAYLOAD + IEEE80211_CRC_LEN + \    (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))/* * Store a magic number in skb->cb[] area to indicate FF within driver. * Offset of 8B into cb[] is used to preserve vlan tag info. */#define ATH_FF_MAGIC_PUT(_skb) \	(((struct ieee80211_cb *) (_skb)->cb)->flags |= M_FF)#define ATH_FF_MAGIC_CLR(_skb) \	(((struct ieee80211_cb *) (_skb)->cb)->flags &= ~M_FF)#define ATH_FF_MAGIC_PRESENT(_skb) \	((((struct ieee80211_cb *) (_skb)->cb)->flags & M_FF) != 0)#define ATH_FF_NEXTSKB_PUT(_skb, _next) \	(((struct ieee80211_cb *) (_skb)->cb)->next = _next)#define ATH_FF_NEXTSKB_GET(_skb) \	(((struct ieee80211_cb *) (_skb)->cb)->next)/* * default value for the minimum txq depth required for an ath_buf to be * placed on the FF staging queue. this value should be >=3 due to interaction * with HW compression. */#define ATH_FF_TXQMIN		3/*  * default maximum age an ath_buf is allowed to remain on the staging queue. * When this number of ath_bufs have been queued on the txq, after an ath_buf * was placed on the staging queue, that ath_buf on the staging queue will be * flushed. */#define ATH_FF_STAGEQAGEMAX	5/* * Reserve enough buffer header length to avoid reallocation on fast-frame * rx and tx. */#define USE_HEADERLEN_RESV	1#endif /* _NET_IF_ATH_PROTO_H_ */