| /* |
| * Copyright (c) 2004 Atheros Communications Inc. All rights reserved. |
| * |
| * $Id: if_athproto.h 2606 2007-07-25 15:14:52Z mrenzmann $ |
| */ |
| |
| #ifndef _NET_IF_ATH_PROTO_H_ |
| #define _NET_IF_ATH_PROTO_H_ |
| |
| /* |
| * Atheros proprietary protocol info. |
| */ |
| |
| /* |
| * Atheros RSSI, Signal, Noise, etc. |
| */ |
| |
| #define ATH_DEFAULT_NOISE -95 /* dBm */ |
| |
| /* |
| * 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 0x7f |
| |
| struct 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)) |
| |
| /* |
| * 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_ */ |
