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* Eliminate an_halstats as it is unused. The HAL doesn't know about nodes.

Browse Source 
*  Replace an_halstats it with an_avgrssi (EWMA)
*  Only update stats in ath_softc* when we are on-channel and acting as a station,
   as there is no meaning to these stats as an AP.



git-svn-id: http://madwifi-project.org/svn/madwifi/trunk@3515 0192ed92-7a03-0410-a25b-9323aeb14dbd
This commit is contained in:
mtaylor 2008-04-10 05:26:44 +00:00
parent 735fc50dc2
commit 0438f82469
2 changed files with 25 additions and 18 deletions
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41
ath/if_ath.c
View File

@ -5705,9 +5705,7 @@ ath_node_alloc(struct ieee80211vap *vap)
if (an != NULL) {
memset(an, 0, space);
an->an_decomp_index = INVALID_DECOMP_INDEX;
an->an_halstats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER;
an->an_halstats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER;
an->an_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
an->an_avgrssi = ATH_RSSI_DUMMY_MARKER;
/*
* ath_rate_node_init needs a vap pointer in node
* to decide which mgt rate to use
@ -5810,7 +5808,7 @@ ath_node_getrssi(const struct ieee80211_node *ni)
#define HAL_EP_RND(x, mul) \
((((x) % (mul)) >= ((mul) / 2)) ? ((x) + ((mul) - 1)) / \
(mul) : (x)/(mul))
u_int32_t avgrssi = ATH_NODE_CONST(ni)->an_halstats.ns_avgrssi;
u_int32_t avgrssi = ATH_NODE_CONST(ni)->an_avgrssi;
int32_t rssi;
/*
@ -6420,8 +6418,12 @@ ath_recv_mgmt(struct ieee80211vap * vap, struct ieee80211_node *ni_or_null,
switch (subtype) {
case IEEE80211_FC0_SUBTYPE_BEACON:
/* Update RSSI statistics for use by the HAL. */
ATH_RSSI_LPF(ATH_NODE(ni)->an_halstats.ns_avgbrssi, rssi);
/* Update beacon RSSI statistics, (apply to "pure" STA only)
* AND only for our AP's beacons */
if(vap->iv_opmode == IEEE80211_M_STA &&
sc->sc_ic.ic_opmode == IEEE80211_M_STA &&
ni == vap->iv_bss)
ATH_RSSI_LPF(sc->sc_halstats.ns_avgbrssi, rssi);
if ((sc->sc_syncbeacon ||
(vap->iv_flags_ext & IEEE80211_FEXT_APPIE_UPDATE)) &&
ni == vap->iv_bss && vap->iv_state == IEEE80211_S_RUN) {
@ -6732,7 +6734,6 @@ drop_micfail:
/* Fast path: node is present in the key map;
* grab a reference for processing the frame. */
ni = ieee80211_ref_node(ni);
ATH_RSSI_LPF(ATH_NODE(ni)->an_halstats.ns_avgrssi, rs->rs_rssi);
type = ieee80211_input(ni->ni_vap, ni, skb, rs->rs_rssi, bf->bf_tsf);
ieee80211_unref_node(&ni);
} else {
@ -6744,8 +6745,6 @@ drop_micfail:
(const struct ieee80211_frame_min *)skb->data);
if (ni != NULL) {
ieee80211_keyix_t keyix;
ATH_RSSI_LPF(ATH_NODE(ni)->an_halstats.ns_avgrssi, rs->rs_rssi);
type = ieee80211_input(ni->ni_vap, ni, skb, rs->rs_rssi, bf->bf_tsf);
/*
* If the station has a key cache slot assigned
@ -8290,8 +8289,11 @@ ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
if (ts->ts_rate & HAL_TXSTAT_ALTRATE)
sc->sc_stats.ast_tx_altrate++;
sc->sc_stats.ast_tx_rssi = ts->ts_rssi;
ATH_RSSI_LPF(an->an_halstats.ns_avgtxrssi,
ts->ts_rssi);
/* Update HAL stats for ANI, only when on-channel */
if (!sc->sc_scanning &&
!(sc->sc_ic.ic_flags & IEEE80211_F_SCAN))
ATH_RSSI_LPF(sc->sc_halstats.ns_avgtxrssi,
ts->ts_rssi);
if (bf->bf_skb->priority == WME_AC_VO ||
bf->bf_skb->priority == WME_AC_VI)
ni->ni_ic->ic_wme.wme_hipri_traffic++;
@ -9181,6 +9183,13 @@ ath_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
if (vap->iv_opmode == IEEE80211_M_MONITOR) {
/* nothing to do */;
} else if (nstate == IEEE80211_S_RUN) {
/*
* Reset RSSI stats (regardless of mode)...
*/
sc->sc_halstats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_halstats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
DPRINTF(sc, ATH_DEBUG_STATE,
"%s->%s: ic_flags=0x%08x iv=%d BSSID=" MAC_FMT
" capinfo=0x%04x chan=%d\n",
@ -9313,12 +9322,6 @@ ath_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
break;
}
/*
* Reset rssi stats; maybe not the best place...
*/
sc->sc_halstats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_halstats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
/* if it is a DFS channel and has not been checked for radar
* do not let the 80211 state machine to go to RUN state. */
if (sc->sc_dfs_cac &&
@ -9370,6 +9373,10 @@ done:
/* Invoke the parent method to complete the work. */
error = avp->av_newstate(vap, nstate, arg);
/* Reset halstats on state change (per freebsd sources) */
sc->sc_halstats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_halstats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
/* Finally, start any timers. */
if ((nstate == IEEE80211_S_RUN) && !sc->sc_beacon_cal) {
/* start periodic recalibration timer */

2
ath/if_athvar.h
View File

@ -362,9 +362,9 @@ typedef STAILQ_HEAD(, ath_buf) ath_bufhead;
struct ath_node {
struct ieee80211_node an_node; /* base class */
u_int16_t an_decomp_index; /* decompression mask index */
u_int32_t an_avgrssi; /* average rssi over all rx frames */
u_int8_t an_prevdatarix; /* rate ix of last data frame */
u_int16_t an_minffrate; /* min rate in kbps for ff to aggregate */
HAL_NODE_STATS an_halstats; /* rssi statistics used by hal */
struct ath_buf *an_tx_ffbuf[WME_NUM_AC]; /* ff staging area */