projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 5b435de0 AS |
1 | /* |
| 2 | * Copyright (c) 2010 Broadcom Corporation | |
| 3 | * | |
| 4 | * Permission to use, copy, modify, and/or distribute this software for any | |
| 5 | * purpose with or without fee is hereby granted, provided that the above | |
| 6 | * copyright notice and this permission notice appear in all copies. | |
| 7 | * | |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
| 11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
| 13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
| 14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 15 | */ | |
| 16 | ||
| 17 | #ifndef _BRCM_SCB_H_ | |
| 18 | #define _BRCM_SCB_H_ | |
| 19 | ||
| 20 | #include <linux/if_ether.h> | |
| 21 | #include <brcmu_utils.h> | |
| 22 | #include <defs.h> | |
| 23 | #include "types.h" | |
| 24 | ||
| 25 | #define AMPDU_TX_BA_MAX_WSIZE 64 /* max Tx ba window size (in pdu) */ | |
| 26 | ||
| 27 | #define AMPDU_MAX_SCB_TID NUMPRIO | |
| 28 | ||
| 29 | /* scb flags */ | |
| 30 | #define SCB_WMECAP 0x0040 | |
| 31 | #define SCB_HTCAP 0x10000 /* HT (MIMO) capable device */ | |
| 32 | #define SCB_IS40 0x80000 /* 40MHz capable */ | |
| 33 | #define SCB_STBCCAP 0x40000000 /* STBC Capable */ | |
| 34 | ||
| 35 | #define SCB_MAGIC 0xbeefcafe | |
| 36 | ||
| 37 | /* structure to store per-tid state for the ampdu initiator */ | |
| 38 | struct scb_ampdu_tid_ini { | |
| 5b435de0 AS |
39 | u8 tid; /* initiator tid for easy lookup */ |
| 40 | /* tx retry count; indexed by seq modulo */ | |
| 41 | u8 txretry[AMPDU_TX_BA_MAX_WSIZE]; | |
| 42 | struct scb *scb; /* backptr for easy lookup */ | |
| 43 | u8 ba_wsize; /* negotiated ba window size (in pdu) */ | |
| 44 | }; | |
| 45 | ||
| 46 | struct scb_ampdu { | |
| 47 | struct scb *scb; /* back pointer for easy reference */ | |
| 48 | u8 mpdu_density; /* mpdu density */ | |
| 49 | u8 max_pdu; /* max pdus allowed in ampdu */ | |
| 50 | u8 release; /* # of mpdus released at a time */ | |
| 51 | u16 min_len; /* min mpdu len to support the density */ | |
| 52 | u32 max_rx_ampdu_bytes; /* max ampdu rcv length; 8k, 16k, 32k, 64k */ | |
| 53 | ||
| 54 | /* | |
| 55 | * This could easily be a ini[] pointer and we keep this info in wl | |
| 56 | * itself instead of having mac80211 hold it for us. Also could be made | |
| 57 | * dynamic per tid instead of static. | |
| 58 | */ | |
| 59 | /* initiator info - per tid (NUMPRIO): */ | |
| 60 | struct scb_ampdu_tid_ini ini[AMPDU_MAX_SCB_TID]; | |
| 61 | }; | |
| 62 | ||
| 63 | /* station control block - one per remote MAC address */ | |
| 64 | struct scb { | |
| 65 | u32 magic; | |
| 66 | u32 flags; /* various bit flags as defined below */ | |
| 67 | u32 flags2; /* various bit flags2 as defined below */ | |
| 68 | u8 state; /* current state bitfield of auth/assoc process */ | |
| 69 | u8 ea[ETH_ALEN]; /* station address */ | |
| 70 | uint fragresid[NUMPRIO];/* #bytes unused in frag buffer per prio */ | |
| 71 | ||
| 72 | u16 seqctl[NUMPRIO]; /* seqctl of last received frame (for dups) */ | |
| 73 | /* seqctl of last received frame (for dups) for non-QoS data and | |
| 74 | * management */ | |
| 75 | u16 seqctl_nonqos; | |
| 76 | u16 seqnum[NUMPRIO];/* WME: driver maintained sw seqnum per priority */ | |
| 77 | ||
| 78 | struct scb_ampdu scb_ampdu; /* AMPDU state including per tid info */ | |
| 79 | }; | |
| 80 | ||
| 81 | #endif /* _BRCM_SCB_H_ */ |