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ath9k: Cleanup multiple VIF processing

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Replace the internal sc_vaps array and index values by using vif
pointer from mac80211. Allow multiple VIPs to be registered. Though,
number of beaconing VIFs is still limited by ATH_BCBUF (currently
1). Multiple virtual STAs support is not yet complete, but at least
the data structures should now be able to handle this.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jouni Malinen
2009-03-03 19:23:26 +02:00
committed by John W. Linville
parent 860559fe68
commit 2c3db3d51e
3 changed files with 59 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
drivers/net/wireless/ath9k/beacon.c
View File

@@ -113,17 +113,16 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp,
series, 4, 0);
}
static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
static struct ath_buf *ath_beacon_generate(struct ath_softc *sc,
struct ieee80211_vif *vif)
{
struct ath_buf *bf;
struct ath_vif *avp;
struct sk_buff *skb;
struct ath_txq *cabq;
struct ieee80211_vif *vif;
struct ieee80211_tx_info *info;
int cabq_depth;
vif = sc->vifs[if_id];
avp = (void *)vif->drv_priv;
cabq = sc->beacon.cabq;
@@ -208,15 +207,14 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
* Startup beacon transmission for adhoc mode when they are sent entirely
* by the hardware using the self-linked descriptor + veol trick.
*/
static void ath_beacon_start_adhoc(struct ath_softc *sc, int if_id)
static void ath_beacon_start_adhoc(struct ath_softc *sc,
struct ieee80211_vif *vif)
{
struct ieee80211_vif *vif;
struct ath_hw *ah = sc->sc_ah;
struct ath_buf *bf;
struct ath_vif *avp;
struct sk_buff *skb;
vif = sc->vifs[if_id];
avp = (void *)vif->drv_priv;
if (avp->av_bcbuf == NULL)
@@ -246,16 +244,14 @@ int ath_beaconq_setup(struct ath_hw *ah)
return ath9k_hw_setuptxqueue(ah, ATH9K_TX_QUEUE_BEACON, &qi);
}
int ath_beacon_alloc(struct ath_softc *sc, int if_id)
int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif)
{
struct ieee80211_vif *vif;
struct ath_vif *avp;
struct ieee80211_hdr *hdr;
struct ath_buf *bf;
struct sk_buff *skb;
__le64 tstamp;
vif = sc->vifs[if_id];
avp = (void *)vif->drv_priv;
/* Allocate a beacon descriptor if we haven't done so. */
@@ -275,22 +271,21 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
*/
avp->av_bslot = 0;
for (slot = 0; slot < ATH_BCBUF; slot++)
if (sc->beacon.bslot[slot] == ATH_IF_ID_ANY) {
if (sc->beacon.bslot[slot] == NULL) {
/*
* XXX hack, space out slots to better
* deal with misses
*/
if (slot+1 < ATH_BCBUF &&
sc->beacon.bslot[slot+1] ==
ATH_IF_ID_ANY) {
sc->beacon.bslot[slot+1] == NULL) {
avp->av_bslot = slot+1;
break;
}
avp->av_bslot = slot;
/* NB: keep looking for a double slot */
}
BUG_ON(sc->beacon.bslot[avp->av_bslot] != ATH_IF_ID_ANY);
sc->beacon.bslot[avp->av_bslot] = if_id;
BUG_ON(sc->beacon.bslot[avp->av_bslot] != NULL);
sc->beacon.bslot[avp->av_bslot] = vif;
sc->nbcnvifs++;
}
}
@@ -372,7 +367,7 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp)
struct ath_buf *bf;
if (avp->av_bslot != -1) {
sc->beacon.bslot[avp->av_bslot] = ATH_IF_ID_ANY;
sc->beacon.bslot[avp->av_bslot] = NULL;
sc->nbcnvifs--;
}
@@ -395,7 +390,8 @@ void ath_beacon_tasklet(unsigned long data)
struct ath_softc *sc = (struct ath_softc *)data;
struct ath_hw *ah = sc->sc_ah;
struct ath_buf *bf = NULL;
int slot, if_id;
struct ieee80211_vif *vif;
int slot;
u32 bfaddr, bc = 0, tsftu;
u64 tsf;
u16 intval;
@@ -442,15 +438,15 @@ void ath_beacon_tasklet(unsigned long data)
tsf = ath9k_hw_gettsf64(ah);
tsftu = TSF_TO_TU(tsf>>32, tsf);
slot = ((tsftu % intval) * ATH_BCBUF) / intval;
if_id = sc->beacon.bslot[(slot + 1) % ATH_BCBUF];
vif = sc->beacon.bslot[(slot + 1) % ATH_BCBUF];
DPRINTF(sc, ATH_DBG_BEACON,
"slot %d [tsf %llu tsftu %u intval %u] if_id %d\n",
slot, tsf, tsftu, intval, if_id);
"slot %d [tsf %llu tsftu %u intval %u] vif %p\n",
slot, tsf, tsftu, intval, vif);
bfaddr = 0;
if (if_id != ATH_IF_ID_ANY) {
bf = ath_beacon_generate(sc, if_id);
if (vif) {
bf = ath_beacon_generate(sc, vif);
if (bf != NULL) {
bfaddr = bf->bf_daddr;
bc = 1;
@@ -652,7 +648,8 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
static void ath_beacon_config_adhoc(struct ath_softc *sc,
struct ath_beacon_config *conf,
struct ath_vif *avp)
struct ath_vif *avp,
struct ieee80211_vif *vif)
{
u64 tsf;
u32 tsftu, intval, nexttbtt;
@@ -696,14 +693,12 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
ath9k_hw_set_interrupts(sc->sc_ah, sc->imask);
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)
ath_beacon_start_adhoc(sc, 0);
ath_beacon_start_adhoc(sc, vif);
}
void ath_beacon_config(struct ath_softc *sc, int if_id)
void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
{
struct ath_beacon_config conf;
struct ath_vif *avp;
struct ieee80211_vif *vif;
/* Setup the beacon configuration parameters */
@@ -715,16 +710,15 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
conf.dtim_count = 1;
conf.bmiss_timeout = ATH_DEFAULT_BMISS_LIMIT * conf.beacon_interval;
if (if_id != ATH_IF_ID_ANY) {
vif = sc->vifs[if_id];
avp = (struct ath_vif *)vif->drv_priv;
if (vif) {
struct ath_vif *avp = (struct ath_vif *)vif->drv_priv;
switch(avp->av_opmode) {
case NL80211_IFTYPE_AP:
ath_beacon_config_ap(sc, &conf, avp);
break;
case NL80211_IFTYPE_ADHOC:
ath_beacon_config_adhoc(sc, &conf, avp);
ath_beacon_config_adhoc(sc, &conf, avp, vif);
break;
case NL80211_IFTYPE_STATION:
ath_beacon_config_sta(sc, &conf, avp);