| /* |
| * 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, uint8 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 { |
| uint32 magic; |
| uint8 tx_in_transit; /* number of pending mpdus in transit in driver */ |
| uint8 tid; /* initiator tid for easy lookup */ |
| uint8 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 */ |
| uint8 mpdu_density; /* mpdu density */ |
| uint8 max_pdu; /* max pdus allowed in ampdu */ |
| uint8 release; /* # of mpdus released at a time */ |
| uint16 min_len; /* min mpdu len to support the density */ |
| uint32 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 { |
| uint32 magic; |
| uint32 flags; /* various bit flags as defined below */ |
| uint32 flags2; /* various bit flags2 as defined below */ |
| uint8 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 */ |
| |
| uint16 seqctl[NUMPRIO]; /* seqctl of last received frame (for dups) */ |
| uint16 seqctl_nonqos; /* seqctl of last received frame (for dups) for |
| * non-QoS data and management |
| */ |
| uint16 seqnum[NUMPRIO]; /* WME: driver maintained sw seqnum per priority */ |
| |
| scb_ampdu_t scb_ampdu; /* AMPDU state including per tid info */ |
| }; |
| |
| /* SCB flags */ |
| #define SCB_NONERP 0x0001 /* No ERP */ |
| #define SCB_LONGSLOT 0x0002 /* Long Slot */ |
| #define SCB_SHORTPREAMBLE 0x0004 /* Short Preamble ok */ |
| #define SCB_8021XHDR 0x0008 /* 802.1x Header */ |
| #define SCB_WPA_SUP 0x0010 /* 0 - authenticator, 1 - supplicant */ |
| #define SCB_DEAUTH 0x0020 /* 0 - ok to deauth, 1 - no (just did) */ |
| #define SCB_WMECAP 0x0040 /* WME Cap; may ONLY be set if WME_ENAB(wlc) */ |
| #define SCB_BRCM 0x0100 /* BRCM AP or STA */ |
| #define SCB_WDS_LINKUP 0x0200 /* WDS link up */ |
| #define SCB_RESERVED1 0x0400 |
| #define SCB_RESERVED2 0x0800 |
| #define SCB_MYAP 0x1000 /* We are associated to this AP */ |
| #define SCB_PENDING_PROBE 0x2000 /* Probe is pending to this SCB */ |
| #define SCB_AMSDUCAP 0x4000 /* A-MSDU capable */ |
| #define SCB_BACAP 0x8000 /* pre-n blockack capable */ |
| #define SCB_HTCAP 0x10000 /* HT (MIMO) capable device */ |
| #define SCB_RECV_PM 0x20000 /* state of PM bit in last data frame recv'd */ |
| #define SCB_AMPDUCAP 0x40000 /* A-MPDU capable */ |
| #define SCB_IS40 0x80000 /* 40MHz capable */ |
| #define SCB_NONGF 0x100000 /* Not Green Field capable */ |
| #define SCB_APSDCAP 0x200000 /* APSD capable */ |
| #define SCB_PENDING_FREE 0x400000 /* marked for deletion - clip recursion */ |
| #define SCB_PENDING_PSPOLL 0x800000 /* PS-Poll is pending to this SCB */ |
| #define SCB_RIFSCAP 0x1000000 /* RIFS capable */ |
| #define SCB_HT40INTOLERANT 0x2000000 /* 40 Intolerant */ |
| #define SCB_WMEPS 0x4000000 /* PS + WME w/o APSD capable */ |
| #define SCB_SENT_APSD_TRIG 0x8000000 /* APSD Trigger Null Frame was recently sent */ |
| #define SCB_COEX_MGMT 0x10000000 /* Coexistence Management supported */ |
| #define SCB_IBSS_PEER 0x20000000 /* Station is an IBSS peer */ |
| #define SCB_STBCCAP 0x40000000 /* STBC Capable */ |
| |
| /* scb flags2 */ |
| #define SCB2_SGI20_CAP 0x00000001 /* 20MHz SGI Capable */ |
| #define SCB2_SGI40_CAP 0x00000002 /* 40MHz SGI Capable */ |
| #define SCB2_RX_LARGE_AGG 0x00000004 /* device can rx large aggs */ |
| #define SCB2_INTERNAL 0x00000008 /* This scb is an internal scb */ |
| #define SCB2_IN_ASSOC 0x00000010 /* Incoming assocation in progress */ |
| #define SCB2_RESERVED1 0x00000040 |
| #define SCB2_LDPCCAP 0x00000080 /* LDPC Cap */ |
| |
| /* scb association state bitfield */ |
| #define UNAUTHENTICATED 0 /* unknown */ |
| #define AUTHENTICATED 1 /* 802.11 authenticated (open or shared key) */ |
| #define ASSOCIATED 2 /* 802.11 associated */ |
| #define PENDING_AUTH 4 /* Waiting for 802.11 authentication response */ |
| #define PENDING_ASSOC 8 /* Waiting for 802.11 association response */ |
| #define AUTHORIZED 0x10 /* 802.1X authorized */ |
| #define TAKEN4IBSS 0x80 /* Taken */ |
| |
| /* scb association state helpers */ |
| #define SCB_ASSOCIATED(a) ((a)->state & ASSOCIATED) |
| #define SCB_AUTHENTICATED(a) ((a)->state & AUTHENTICATED) |
| #define SCB_AUTHORIZED(a) ((a)->state & AUTHORIZED) |
| |
| /* flag access */ |
| #define SCB_ISMYAP(a) ((a)->flags & SCB_MYAP) |
| #define SCB_ISPERMANENT(a) ((a)->permanent) |
| #define SCB_INTERNAL(a) ((a)->flags2 & SCB2_INTERNAL) |
| /* scb association state helpers w/ respect to ssid (in case of multi ssids) |
| * The bit set in the bit field is relative to the current state (i.e. if |
| * the current state is "associated", a 1 at the position "i" means the |
| * sta is associated to ssid "i" |
| */ |
| #define SCB_ASSOCIATED_BSSCFG(a, i) \ |
| (((a)->state & ASSOCIATED) && isset(&(scb->auth_bsscfg), i)) |
| |
| #define SCB_AUTHENTICATED_BSSCFG(a, i) \ |
| (((a)->state & AUTHENTICATED) && isset(&(scb->auth_bsscfg), i)) |
| |
| #define SCB_AUTHORIZED_BSSCFG(a, i) \ |
| (((a)->state & AUTHORIZED) && isset(&(scb->auth_bsscfg), i)) |
| |
| #define SCB_LONG_TIMEOUT 3600 /* # seconds of idle time after which we proactively |
| * free an authenticated SCB |
| */ |
| #define SCB_SHORT_TIMEOUT 60 /* # seconds of idle time after which we will reclaim an |
| * authenticated SCB if we would otherwise fail |
| * an SCB allocation. |
| */ |
| #define SCB_TIMEOUT 60 /* # seconds: interval to probe idle STAs */ |
| #define SCB_ACTIVITY_TIME 5 /* # seconds: skip probe if activity during this time */ |
| #define SCB_GRACE_ATTEMPTS 3 /* # attempts to probe sta beyond scb_activity_time */ |
| |
| /* scb_info macros */ |
| #define SCB_PS(a) NULL |
| #define SCB_WDS(a) NULL |
| #define SCB_INTERFACE(a) ((a)->bsscfg->wlcif->wlif) |
| #define SCB_WLCIFP(a) (((a)->bsscfg->wlcif)) |
| #define WLC_BCMC_PSMODE(wlc, bsscfg) (TRUE) |
| |
| #define SCB_WME(a) ((a)->flags & SCB_WMECAP) /* Also implies WME_ENAB(wlc) */ |
| |
| #define SCB_AMPDU(a) TRUE |
| #define SCB_AMSDU(a) FALSE |
| |
| #define SCB_HT_CAP(a) ((a)->flags & SCB_HTCAP) |
| #define SCB_ISGF_CAP(a) (((a)->flags & (SCB_HTCAP | SCB_NONGF)) == SCB_HTCAP) |
| #define SCB_NONGF_CAP(a) (((a)->flags & (SCB_HTCAP | SCB_NONGF)) == \ |
| (SCB_HTCAP | SCB_NONGF)) |
| #define SCB_COEX_CAP(a) ((a)->flags & SCB_COEX_MGMT) |
| #define SCB_STBC_CAP(a) ((a)->flags & SCB_STBCCAP) |
| #define SCB_LDPC_CAP(a) (SCB_HT_CAP(a) && ((a)->flags2 & SCB2_LDPCCAP)) |
| |
| #define SCB_IS_IBSS_PEER(a) ((a)->flags & SCB_IBSS_PEER) |
| #define SCB_SET_IBSS_PEER(a) ((a)->flags |= SCB_IBSS_PEER) |
| #define SCB_UNSET_IBSS_PEER(a) ((a)->flags &= ~SCB_IBSS_PEER) |
| |
| #define SCB_11E(a) FALSE |
| |
| #define SCB_QOS(a) ((a)->flags & (SCB_WMECAP | SCB_HTCAP)) |
| |
| #define SCB_BSSCFG(a) ((a)->bsscfg) |
| |
| #define SCB_SEQNUM(scb, prio) (scb)->seqnum[(prio)] |
| |
| #define SCB_ISMULTI(a) ETHER_ISMULTI((a)->ea.octet) |
| #define SCB_ISVALID(a, _pkttag_dbgid) ((a) && (a)->_dbgid == (_pkttag_dbgid)) |
| |
| /* API for accessing SCB pointer in WLPKTTAG */ |
| #ifdef BCMDBG |
| #define WLPKTTAGSCBSET(p, scb) { WLPKTTAG(p)->_scb = scb; WLPKTTAG(p)->_scb_dbgid = scb->_dbgid; } |
| #define WLPKTTAGSCBCLR(p) { WLPKTTAG(p)->_scb = NULL; WLPKTTAG(p)->_scb_dbgid = 0; } |
| #else |
| #define WLPKTTAGSCBSET(p, scb) (WLPKTTAG(p)->_scb = scb) |
| #define WLPKTTAGSCBCLR(p) (WLPKTTAG(p)->_scb = NULL) |
| #endif |
| |
| #define WLCNTSCBINCR(a) /* No stats support */ |
| #define WLCNTSCBDECR(a) /* No stats support */ |
| #define WLCNTSCBADD(a,delta) /* No stats support */ |
| #define WLCNTSCBSET(a,value) /* No stats support */ |
| #define WLCNTSCBVAL(a) 0 /* No stats support */ |
| #define WLCNTSCB_COND_SET(c, a, v) /* No stats support */ |
| #define WLCNTSCB_COND_ADD(c, a, d) /* No stats support */ |
| #define WLCNTSCB_COND_INCR(c, a) /* No stats support */ |
| |
| #endif /* _wlc_scb_h_ */ |