| /* |
| * Copyright (c) 2010 Broadcom Corporation |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #ifndef _wlc_scb_h_ |
| #define _wlc_scb_h_ |
| |
| #include <proto/802.1d.h> |
| |
| extern bool wlc_aggregatable(wlc_info_t *wlc, u8 tid); |
| |
| #define AMPDU_TX_BA_MAX_WSIZE 64 /* max Tx ba window size (in pdu) */ |
| /* structure to store per-tid state for the ampdu initiator */ |
| typedef struct scb_ampdu_tid_ini { |
| u32 magic; |
| u8 tx_in_transit; /* number of pending mpdus in transit in driver */ |
| u8 tid; /* initiator tid for easy lookup */ |
| u8 txretry[AMPDU_TX_BA_MAX_WSIZE]; /* tx retry count; indexed by seq modulo */ |
| struct scb *scb; /* backptr for easy lookup */ |
| } scb_ampdu_tid_ini_t; |
| |
| #define AMPDU_MAX_SCB_TID NUMPRIO |
| |
| typedef struct scb_ampdu { |
| struct scb *scb; /* back pointer for easy reference */ |
| u8 mpdu_density; /* mpdu density */ |
| u8 max_pdu; /* max pdus allowed in ampdu */ |
| u8 release; /* # of mpdus released at a time */ |
| u16 min_len; /* min mpdu len to support the density */ |
| u32 max_rxlen; /* max ampdu rcv length; 8k, 16k, 32k, 64k */ |
| struct pktq txq; /* sdu transmit queue pending aggregation */ |
| |
| /* This could easily be a ini[] pointer and we keep this info in wl itself instead |
| * of having mac80211 hold it for us. Also could be made dynamic per tid instead of |
| * static. |
| */ |
| scb_ampdu_tid_ini_t ini[AMPDU_MAX_SCB_TID]; /* initiator info - per tid (NUMPRIO) */ |
| } scb_ampdu_t; |
| |
| #define SCB_MAGIC 0xbeefcafe |
| #define INI_MAGIC 0xabcd1234 |
| |
| /* station control block - one per remote MAC address */ |
| struct scb { |
| u32 magic; |
| u32 flags; /* various bit flags as defined below */ |
| u32 flags2; /* various bit flags2 as defined below */ |
| u8 state; /* current state bitfield of auth/assoc process */ |
| struct ether_addr ea; /* station address */ |
| void *fragbuf[NUMPRIO]; /* defragmentation buffer per prio */ |
| uint fragresid[NUMPRIO]; /* #bytes unused in frag buffer per prio */ |
| |
| u16 seqctl[NUMPRIO]; /* seqctl of last received frame (for dups) */ |
| u16 seqctl_nonqos; /* seqctl of last received frame (for dups) for |
| * non-QoS data and management |
| */ |
| u16 seqnum[NUMPRIO]; /* WME: driver maintained sw seqnum per priority */ |
| |
| scb_ampdu_t scb_ampdu; /* AMPDU state including per tid info */ |
| }; |
| |
| /* scb flags */ |
| #define SCB_WMECAP 0x0040 /* may ONLY be set if WME_ENAB(wlc) */ |
| #define SCB_HTCAP 0x10000 /* HT (MIMO) capable device */ |
| #define SCB_IS40 0x80000 /* 40MHz capable */ |
| #define SCB_STBCCAP 0x40000000 /* STBC Capable */ |
| #define SCB_WME(a) ((a)->flags & SCB_WMECAP)/* implies WME_ENAB */ |
| #define SCB_SEQNUM(scb, prio) ((scb)->seqnum[(prio)]) |
| #define SCB_PS(a) NULL |
| #define SCB_STBC_CAP(a) ((a)->flags & SCB_STBCCAP) |
| #define SCB_AMPDU(a) true |
| #endif /* _wlc_scb_h_ */ |
