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madwifi: fix beacon slot handling and add support for more than 4 vaps (useful for wds per-sta interfaces)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17689 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2009-09-23 13:32:56 +00:00
parent 0ef8b98c7e
commit 93d042b356
1 changed files with 151 additions and 0 deletions
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151
package/madwifi/patches/448-beacon_handling_fixes.patch Normal file
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@ -0,0 +1,151 @@
--- a/ath/if_ath.c
+++ b/ath/if_ath.c
@@ -512,7 +512,7 @@ MODULE_PARM_DESC(ieee80211_debug, "Load-
* and use the higher bits as the index of the VAP.
*/
#define ATH_SET_VAP_BSSID_MASK(bssid_mask) \
- ((bssid_mask)[0] &= ~(((ath_maxvaps-1) << 2) | 0x02))
+ ((bssid_mask)[0] &= ~(((ATH_MAXVAPS_MAX-1) << 2) | 0x02))
#define ATH_GET_VAP_ID(bssid) ((bssid)[0] >> 2)
#define ATH_SET_VAP_BSSID(bssid, id) \
do { \
@@ -604,8 +604,8 @@ ath_attach(u_int16_t devid, struct net_d
/* Allocate space for dynamically determined maximum VAP count */
sc->sc_bslot =
- kmalloc(ath_maxvaps * sizeof(struct ieee80211vap*), GFP_KERNEL);
- memset(sc->sc_bslot, 0, ath_maxvaps * sizeof(struct ieee80211vap*));
+ kmalloc(ATH_MAXVAPS_MAX * sizeof(struct ieee80211vap*), GFP_KERNEL);
+ memset(sc->sc_bslot, 0, ATH_MAXVAPS_MAX * sizeof(struct ieee80211vap*));
/*
* Cache line size is used to size and align various
@@ -1349,11 +1349,8 @@ ath_vap_create(struct ieee80211com *ic,
return NULL;
}
- if (sc->sc_nvaps >= ath_maxvaps) {
- EPRINTF(sc, "Too many virtual APs (%d already exist).\n",
- sc->sc_nvaps);
- return NULL;
- }
+ if ((sc->sc_nvaps >= ath_maxvaps) && (ath_maxvaps < ATH_MAXVAPS_MAX))
+ ath_maxvaps++;
dev = alloc_etherdev(sizeof(struct ath_vap) + sc->sc_rc->arc_vap_space);
if (dev == NULL) {
@@ -1451,11 +1448,11 @@ ath_vap_create(struct ieee80211com *ic,
/* Assign the VAP to a beacon xmit slot. As
* above, this cannot fail to find one. */
avp->av_bslot = 0;
- for (slot = 0; slot < ath_maxvaps; slot++)
+ for (slot = 0; slot < ATH_MAXVAPS_MAX; slot++)
if (sc->sc_bslot[slot] == NULL) {
/* XXX: Hack, space out slots to better
* deal with misses. */
- if (slot + 1 < ath_maxvaps &&
+ if (slot + 1 < ATH_MAXVAPS_DEFAULT &&
sc->sc_bslot[slot+1] == NULL) {
avp->av_bslot = slot + 1;
break;
@@ -1463,11 +1460,16 @@ ath_vap_create(struct ieee80211com *ic,
avp->av_bslot = slot;
/* NB: keep looking for a double slot */
}
- KASSERT(sc->sc_bslot[avp->av_bslot] == NULL,
- ("beacon slot %u not empty?", avp->av_bslot));
+
+ /* No beacon slot found? */
+ if (sc->sc_bslot[avp->av_bslot]) {
+ free_netdev(dev);
+ return NULL;
+ }
sc->sc_bslot[avp->av_bslot] = vap;
sc->sc_nbcnvaps++;
+#if 0
if ((opmode == IEEE80211_M_HOSTAP) && (sc->sc_hastsfadd)) {
/*
* Multiple VAPs are to transmit beacons and we
@@ -1485,6 +1487,9 @@ ath_vap_create(struct ieee80211com *ic,
sc->sc_stagbeacons = 1;
}
}
+#else
+ sc->sc_stagbeacons = sc->sc_hastsfadd;
+#endif
DPRINTF(sc, ATH_DEBUG_BEACON, "sc->sc_stagbeacons %sabled\n",
(sc->sc_stagbeacons ? "en" : "dis"));
}
@@ -4968,7 +4973,7 @@ ath_beacon_alloc_internal(struct ath_sof
* has a timestamp in one beacon interval while the
* others get a timestamp aligned to the next interval.
*/
- tuadjust = (ni->ni_intval * (ath_maxvaps - avp->av_bslot)) / ath_maxvaps;
+ tuadjust = (ni->ni_intval * (ATH_MAXVAPS_DEFAULT - avp->av_bslot)) / ATH_MAXVAPS_DEFAULT;
tsfadjust = cpu_to_le64(tuadjust << 10); /* TU->TSF */
DPRINTF(sc, ATH_DEBUG_BEACON,
@@ -5358,21 +5363,40 @@ ath_beacon_send(struct ath_softc *sc, in
*/
if (sc->sc_stagbeacons) { /* staggered beacons */
struct ieee80211com *ic = &sc->sc_ic;
+ u_int32_t *bflink = NULL;
u_int32_t tsftu;
tsftu = hw_tsf >> 10; /* NB: 64 -> 32: See note far above. */
- slot = ((tsftu % ic->ic_lintval) * ath_maxvaps) / ic->ic_lintval;
- vap = sc->sc_bslot[(slot + 1) % ath_maxvaps];
+ slot = ((tsftu % ic->ic_lintval) * ATH_MAXVAPS_DEFAULT) / ic->ic_lintval;
DPRINTF(sc, ATH_DEBUG_BEACON_PROC,
"Slot %d [tsf %llu tsftu %llu intval %u] vap %p\n",
slot, (unsigned long long)hw_tsf,
(unsigned long long)tsftu, ic->ic_lintval, vap);
bfaddr = 0;
- if (vap != NULL) {
+ while (slot < ATH_MAXVAPS_MAX) {
+ vap = sc->sc_bslot[slot];
+ if (vap == NULL)
+ goto next;
+
bf = ath_beacon_generate(sc, vap, needmark);
- if (bf != NULL)
+ if (bf == NULL)
+ break;
+
+ if (bflink != NULL)
+#ifdef AH_NEED_DESC_SWAP
+ *bflink = cpu_to_le32(bf->bf_daddr);
+#else
+ *bflink = bf->bf_daddr;
+#endif
+ else
bfaddr = bf->bf_daddr;
+
+ bflink = &bf->bf_desc->ds_link;
+next:
+ slot += ATH_MAXVAPS_DEFAULT;
}
+ if (bflink != NULL)
+ *bflink = 0; /* link of last frame */
} else { /* burst'd beacons */
u_int32_t *bflink = NULL;
@@ -5567,7 +5591,7 @@ ath_beacon_config(struct ath_softc *sc,
/* NB: the beacon interval is kept internally in TUs */
intval = ic->ic_lintval & HAL_BEACON_PERIOD;
if (sc->sc_stagbeacons)
- intval /= ath_maxvaps; /* for staggered beacons */
+ intval /= ATH_MAXVAPS_DEFAULT; /* for staggered beacons */
if ((sc->sc_nostabeacons) &&
(vap->iv_opmode == IEEE80211_M_HOSTAP))
reset_tsf = 1;
@@ -5889,7 +5913,7 @@ ath_desc_alloc(struct ath_softc *sc)
/* XXX allocate beacon state together with VAP */
error = ath_descdma_setup(sc, &sc->sc_bdma, &sc->sc_bbuf,
- "beacon", ath_maxvaps, 1);
+ "beacon", ATH_MAXVAPS_MAX, 1);
if (error != 0) {
ath_descdma_cleanup(sc, &sc->sc_txdma, &sc->sc_txbuf,
BUS_DMA_TODEVICE);