Release 4.11 drivers/net/wireless/ath/ath9k/beacon.c
/*
* Copyright (c) 2008-2011 Atheros Communications Inc.
*
* 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.
*/
#include <linux/dma-mapping.h>
#include "ath9k.h"
#define FUDGE 2
static void ath9k_reset_beacon_status(struct ath_softc *sc)
{
sc->beacon.tx_processed = false;
sc->beacon.tx_last = false;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Felix Fietkau | 27 | 100.00% | 1 | 100.00% |
Total | 27 | 100.00% | 1 | 100.00% |
/*
* This function will modify certain transmit queue properties depending on
* the operating mode of the station (AP or AdHoc). Parameters are AIFS
* settings and channel width min/max
*/
static void ath9k_beaconq_config(struct ath_softc *sc)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_tx_queue_info qi, qi_be;
struct ath_txq *txq;
ath9k_hw_get_txq_props(ah, sc->beacon.beaconq, &qi);
if (sc->sc_ah->opmode == NL80211_IFTYPE_AP ||
sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT) {
/* Always burst out beacon and CAB traffic. */
qi.tqi_aifs = 1;
qi.tqi_cwmin = 0;
qi.tqi_cwmax = 0;
} else {
/* Adhoc mode; important thing is to use 2x cwmin. */
txq = sc->tx.txq_map[IEEE80211_AC_BE];
ath9k_hw_get_txq_props(ah, txq->axq_qnum, &qi_be);
qi.tqi_aifs = qi_be.tqi_aifs;
if (ah->slottime == 20)
qi.tqi_cwmin = 2*qi_be.tqi_cwmin;
else
qi.tqi_cwmin = 4*qi_be.tqi_cwmin;
qi.tqi_cwmax = qi_be.tqi_cwmax;
}
if (!ath9k_hw_set_txq_props(ah, sc->beacon.beaconq, &qi)) {
ath_err(common, "Unable to update h/w beacon queue parameters\n");
} else {
ath9k_hw_resettxqueue(ah, sc->beacon.beaconq);
}
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Luis R. Rodriguez | 123 | 59.71% | 2 | 11.11% |
Vivek Natarajan | 37 | 17.96% | 2 | 11.11% |
Sujith Manoharan | 21 | 10.19% | 8 | 44.44% |
Felix Fietkau | 14 | 6.80% | 2 | 11.11% |
Thomas Pedersen | 8 | 3.88% | 1 | 5.56% |
Colin McCabe | 1 | 0.49% | 1 | 5.56% |
Joe Perches | 1 | 0.49% | 1 | 5.56% |
Benjamin Berg | 1 | 0.49% | 1 | 5.56% |
Total | 206 | 100.00% | 18 | 100.00% |
/*
* Associates the beacon frame buffer with a transmit descriptor. Will set
* up rate codes, and channel flags. Beacons are always sent out at the
* lowest rate, and are not retried.
*/
static void ath9k_beacon_setup(struct ath_softc *sc, struct ieee80211_vif *vif,
struct ath_buf *bf, int rateidx)
{
struct sk_buff *skb = bf->bf_mpdu;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath_tx_info info;
struct ieee80211_supported_band *sband;
u8 chainmask = ah->txchainmask;
u8 i, rate = 0;
sband = &common->sbands[sc->cur_chandef.chan->band];
rate = sband->bitrates[rateidx].hw_value;
if (vif->bss_conf.use_short_preamble)
rate |= sband->bitrates[rateidx].hw_value_short;
memset(&info, 0, sizeof(info));
info.pkt_len = skb->len + FCS_LEN;
info.type = ATH9K_PKT_TYPE_BEACON;
for (i = 0; i < 4; i++)
info.txpower[i] = MAX_RATE_POWER;
info.keyix = ATH9K_TXKEYIX_INVALID;
info.keytype = ATH9K_KEY_TYPE_CLEAR;
info.flags = ATH9K_TXDESC_NOACK | ATH9K_TXDESC_CLRDMASK;
info.buf_addr[0] = bf->bf_buf_addr;
info.buf_len[0] = roundup(skb->len, 4);
info.is_first = true;
info.is_last = true;
info.qcu = sc->beacon.beaconq;
info.rates[0].Tries = 1;
info.rates[0].Rate = rate;
info.rates[0].ChSel = ath_txchainmask_reduction(sc, chainmask, rate);
ath9k_hw_set_txdesc(ah, bf->bf_desc, &info);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Felix Fietkau | 128 | 43.69% | 5 | 25.00% |
Luis R. Rodriguez | 116 | 39.59% | 2 | 10.00% |
Lorenzo Bianconi | 18 | 6.14% | 1 | 5.00% |
Sujith Manoharan | 13 | 4.44% | 6 | 30.00% |
Vasanthakumar Thiagarajan | 5 | 1.71% | 1 | 5.00% |
Jouni Malinen | 5 | 1.71% | 1 | 5.00% |
Mohammed Shafi Shajakhan | 4 | 1.37% | 1 | 5.00% |
Karl Beldan | 2 | 0.68% | 1 | 5.00% |
Oleksij Rempel | 1 | 0.34% | 1 | 5.00% |
Rajkumar Manoharan | 1 | 0.34% | 1 | 5.00% |
Total | 293 | 100.00% | 20 | 100.00% |
static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath_softc *sc = hw->priv;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_buf *bf;
struct ath_vif *avp = (void *)vif->drv_priv;
struct sk_buff *skb;
struct ath_txq *cabq = sc->beacon.cabq;
struct ieee80211_tx_info *info;
struct ieee80211_mgmt *mgmt_hdr;
int cabq_depth;
if (avp->av_bcbuf == NULL)
return NULL;
bf = avp->av_bcbuf;
skb = bf->bf_mpdu;
if (skb) {
dma_unmap_single(sc->dev, bf->bf_buf_addr,
skb->len, DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
bf->bf_buf_addr = 0;
bf->bf_mpdu = NULL;
}
skb = ieee80211_beacon_get(hw, vif);
if (skb == NULL)
return NULL;
bf->bf_mpdu = skb;
mgmt_hdr = (struct ieee80211_mgmt *)skb->data;
mgmt_hdr->u.beacon.timestamp = avp->tsf_adjust;
info = IEEE80211_SKB_CB(skb);
ath_assign_seq(common, skb);
/* Always assign NOA attr when MCC enabled */
if (ath9k_is_chanctx_enabled())
ath9k_beacon_add_noa(sc, avp, skb);
bf->bf_buf_addr = dma_map_single(sc->dev, skb->data,
skb->len, DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(sc->dev, bf->bf_buf_addr))) {
dev_kfree_skb_any(skb);
bf->bf_mpdu = NULL;
bf->bf_buf_addr = 0;
ath_err(common, "dma_mapping_error on beaconing\n");
return NULL;
}
skb = ieee80211_get_buffered_bc(hw, vif);
/*
* if the CABQ traffic from previous DTIM is pending and the current
* beacon is also a DTIM.
* 1) if there is only one vif let the cab traffic continue.
* 2) if there are more than one vif and we are using staggered
* beacons, then drain the cabq by dropping all the frames in
* the cabq so that the current vifs cab traffic can be scheduled.
*/
spin_lock_bh(&cabq->axq_lock);
cabq_depth = cabq->axq_depth;
spin_unlock_bh(&cabq->axq_lock);
if (skb && cabq_depth) {
if (sc->cur_chan->nvifs > 1) {
ath_dbg(common, BEACON,
"Flushing previous cabq traffic\n");
ath_draintxq(sc, cabq);
}
}
ath9k_beacon_setup(sc, vif, bf, info->control.rates[0].idx);
if (skb)
ath_tx_cabq(hw, vif, skb);
return bf;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Luis R. Rodriguez | 185 | 46.84% | 4 | 12.12% |
Jouni Malinen | 105 | 26.58% | 8 | 24.24% |
Sujith Manoharan | 51 | 12.91% | 9 | 27.27% |
Felix Fietkau | 24 | 6.08% | 4 | 12.12% |
Ben Greear | 13 | 3.29% | 2 | 6.06% |
Gabor Juhos | 11 | 2.78% | 2 | 6.06% |
Janusz Dziedzic | 3 | 0.76% | 1 | 3.03% |
Joe Perches | 3 | 0.76% | 3 | 9.09% |
Total | 395 | 100.00% | 33 | 100.00% |
void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_vif *avp = (void *)vif->drv_priv;
int slot;
avp->av_bcbuf = list_first_entry(&sc->beacon.bbuf, struct ath_buf, list);
list_del(&avp->av_bcbuf->list);
for (slot = 0; slot < ATH_BCBUF; slot++) {
if (sc->beacon.bslot[slot] == NULL) {
avp->av_bslot = slot;
break;
}
}
sc->beacon.bslot[avp->av_bslot] = vif;
ath_dbg(common, CONFIG, "Added interface at beacon slot: %d\n",
avp->av_bslot);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Luis R. Rodriguez | 81 | 60.00% | 2 | 15.38% |
Sujith Manoharan | 36 | 26.67% | 4 | 30.77% |
Felix Fietkau | 8 | 5.93% | 2 | 15.38% |
Jouni Malinen | 6 | 4.44% | 2 | 15.38% |
Ben Greear | 2 | 1.48% | 1 | 7.69% |
Gabor Juhos | 1 | 0.74% | 1 | 7.69% |
Steve Brown | 1 | 0.74% | 1 | 7.69% |
Total | 135 | 100.00% | 13 | 100.00% |
void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_vif *avp = (void *)vif->drv_priv;
struct ath_buf *bf = avp->av_bcbuf;
ath_dbg(common, CONFIG, "Removing interface at beacon slot: %d\n",
avp->av_bslot);
tasklet_disable(&sc->bcon_tasklet);
if (bf && bf->bf_mpdu) {
struct sk_buff *skb = bf->bf_mpdu;
dma_unmap_single(sc->dev, bf->bf_buf_addr,
skb->len, DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
bf->bf_mpdu = NULL;
bf->bf_buf_addr = 0;
}
avp->av_bcbuf = NULL;
sc->beacon.bslot[avp->av_bslot] = NULL;
list_add_tail(&bf->list, &sc->beacon.bbuf);
tasklet_enable(&sc->bcon_tasklet);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sujith Manoharan | 76 | 46.06% | 3 | 20.00% |
Luis R. Rodriguez | 69 | 41.82% | 4 | 26.67% |
Jouni Malinen | 8 | 4.85% | 3 | 20.00% |
Ben Greear | 6 | 3.64% | 1 | 6.67% |
Gabor Juhos | 3 | 1.82% | 2 | 13.33% |
Rajkumar Manoharan | 2 | 1.21% | 1 | 6.67% |
Joe Perches | 1 | 0.61% | 1 | 6.67% |
Total | 165 | 100.00% | 15 | 100.00% |
void ath9k_beacon_ensure_primary_slot(struct ath_softc *sc)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ieee80211_vif *vif;
struct ath_vif *avp;
s64 tsfadjust;
u32 offset;
int first_slot = ATH_BCBUF;
int slot;
tasklet_disable(&sc->bcon_tasklet);
/* Find first taken slot. */
for (slot = 0; slot < ATH_BCBUF; slot++) {
if (sc->beacon.bslot[slot]) {
first_slot = slot;
break;
}
}
if (first_slot == 0)
goto out;
/* Re-enumarate all slots, moving them forward. */
for (slot = 0; slot < ATH_BCBUF; slot++) {
if (slot + first_slot < ATH_BCBUF) {
vif = sc->beacon.bslot[slot + first_slot];
sc->beacon.bslot[slot] = vif;
if (vif) {
avp = (void *)vif->drv_priv;
avp->av_bslot = slot;
}
} else {
sc->beacon.bslot[slot] = NULL;
}
}
vif = sc->beacon.bslot[0];
if (WARN_ON(!vif))
goto out;
/* Get the tsf_adjust value for the new first slot. */
avp = (void *)vif->drv_priv;
tsfadjust = le64_to_cpu(avp->tsf_adjust);
ath_dbg(common, CONFIG,
"Adjusting global TSF after beacon slot reassignment: %lld\n",
(signed long long)tsfadjust);
/* Modify TSF as required and update the HW. */
avp->chanctx->tsf_val += tsfadjust;
if (sc->cur_chan == avp->chanctx) {
offset = ath9k_hw_get_tsf_offset(&avp->chanctx->tsf_ts, NULL);
ath9k_hw_settsf64(sc->sc_ah, avp->chanctx->tsf_val + offset);
}
/* The slots tsf_adjust will be updated by ath9k_beacon_config later. */
out:
tasklet_enable(&sc->bcon_tasklet);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Benjamin Berg | 302 | 100.00% | 1 | 100.00% |
Total | 302 | 100.00% | 1 | 100.00% |
static int ath9k_beacon_choose_slot(struct ath_softc *sc)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon;
u16 intval;
u32 tsftu;
u64 tsf;
int slot;
if (sc->sc_ah->opmode != NL80211_IFTYPE_AP &&
sc->sc_ah->opmode != NL80211_IFTYPE_MESH_POINT) {
ath_dbg(common, BEACON, "slot 0, tsf: %llu\n",
ath9k_hw_gettsf64(sc->sc_ah));
return 0;
}
intval = cur_conf->beacon_interval ? : ATH_DEFAULT_BINTVAL;
tsf = ath9k_hw_gettsf64(sc->sc_ah);
tsf += TU_TO_USEC(sc->sc_ah->config.sw_beacon_response_time);
tsftu = TSF_TO_TU((tsf * ATH_BCBUF) >>32, tsf * ATH_BCBUF);
slot = (tsftu % (intval * ATH_BCBUF)) / intval;
ath_dbg(common, BEACON, "slot: %d tsf: %llu tsftu: %u\n",
slot, tsf, tsftu / ATH_BCBUF);
return slot;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sujith Manoharan | 157 | 93.45% | 1 | 33.33% |
Thomas Pedersen | 8 | 4.76% | 1 | 33.33% |
Rajkumar Manoharan | 3 | 1.79% | 1 | 33.33% |
Total | 168 | 100.00% | 3 | 100.00% |
static void ath9k_set_tsfadjust(struct ath_softc *sc,
struct ath_beacon_config *cur_conf)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
s64 tsfadjust;
int slot;
for (slot = 0; slot < ATH_BCBUF; slot++) {
struct ath_vif *avp;
if (!sc->beacon.bslot[slot])
continue;
avp = (void *)sc->beacon.bslot[slot]->drv_priv;
/* tsf_adjust is added to the TSF value. We send out the
* beacon late, so need to adjust the TSF starting point to be
* later in time (i.e. the theoretical first beacon has a TSF
* of 0 after correction).
*/
tsfadjust = cur_conf->beacon_interval * avp->av_bslot;
tsfadjust = -TU_TO_USEC(tsfadjust) / ATH_BCBUF;
avp->tsf_adjust = cpu_to_le64(tsfadjust);
ath_dbg(common, CONFIG, "tsfadjust is: %lld for bslot: %d\n",
(signed long long)tsfadjust, avp->av_bslot);
}
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sujith Manoharan | 73 | 54.48% | 1 | 16.67% |
Benjamin Berg | 51 | 38.06% | 2 | 33.33% |
Felix Fietkau | 8 | 5.97% | 2 | 33.33% |
Rajkumar Manoharan | 2 | 1.49% | 1 | 16.67% |
Total | 134 | 100.00% | 6 | 100.00% |
bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif)
{
if (!vif || !vif->csa_active)
return false;
if (!ieee80211_csa_is_complete(vif))
return false;
ieee80211_csa_finish(vif);
return true;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Simon Wunderlich | 44 | 93.62% | 1 | 50.00% |
Michal Kazior | 3 | 6.38% | 1 | 50.00% |
Total | 47 | 100.00% | 2 | 100.00% |
static void ath9k_csa_update_vif(void *data, u8 *mac, struct ieee80211_vif *vif)
{
struct ath_softc *sc = data;
ath9k_csa_is_finished(sc, vif);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Michal Kazior | 33 | 100.00% | 1 | 100.00% |
Total | 33 | 100.00% | 1 | 100.00% |
void ath9k_csa_update(struct ath_softc *sc)
{
ieee80211_iterate_active_interfaces_atomic(sc->hw,
IEEE80211_IFACE_ITER_NORMAL,
ath9k_csa_update_vif, sc);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Michal Kazior | 22 | 95.65% | 1 | 50.00% |
Felix Fietkau | 1 | 4.35% | 1 | 50.00% |
Total | 23 | 100.00% | 2 | 100.00% |
void ath9k_beacon_tasklet(unsigned long data)
{
struct ath_softc *sc = (struct ath_softc *)data;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath_buf *bf = NULL;
struct ieee80211_vif *vif;
bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
int slot;
if (test_bit(ATH_OP_HW_RESET, &common->op_flags)) {
ath_dbg(common, RESET,
"reset work is pending, skip beaconing now\n");
return;
}
/*
* Check if the previous beacon has gone out. If
* not don't try to post another, skip this period
* and wait for the next. Missed beacons indicate
* a problem and should not occur. If we miss too
* many consecutive beacons reset the device.
*/
if (ath9k_hw_numtxpending(ah, sc->beacon.beaconq) != 0) {
sc->beacon.bmisscnt++;
ath9k_hw_check_nav(ah);
/*
* If the previous beacon has not been transmitted
* and a MAC/BB hang has been identified, return
* here because a chip reset would have been
* initiated.
*/
if (!ath_hw_check(sc))
return;
if (sc->beacon.bmisscnt < BSTUCK_THRESH * sc->nbcnvifs) {
ath_dbg(common, BSTUCK,
"missed %u consecutive beacons\n",
sc->beacon.bmisscnt);
ath9k_hw_stop_dma_queue(ah, sc->beacon.beaconq);
if (sc->beacon.bmisscnt > 3)
ath9k_hw_bstuck_nfcal(ah);
} else if (sc->beacon.bmisscnt >= BSTUCK_THRESH) {
ath_dbg(common, BSTUCK, "beacon is officially stuck\n");
sc->beacon.bmisscnt = 0;
ath9k_queue_reset(sc, RESET_TYPE_BEACON_STUCK);
}
return;
}
slot = ath9k_beacon_choose_slot(sc);
vif = sc->beacon.bslot[slot];
/* EDMA devices check that in the tx completion function. */
if (!edma) {
if (ath9k_is_chanctx_enabled()) {
ath_chanctx_beacon_sent_ev(sc,
ATH_CHANCTX_EVENT_BEACON_SENT);
}
if (ath9k_csa_is_finished(sc, vif))
return;
}
if (!vif || !vif->bss_conf.enable_beacon)
return;
if (ath9k_is_chanctx_enabled()) {
ath_chanctx_event(sc, vif, ATH_CHANCTX_EVENT_BEACON_PREPARE);
}
bf = ath9k_beacon_generate(sc->hw, vif);
if (sc->beacon.bmisscnt != 0) {
ath_dbg(common, BSTUCK, "resume beacon xmit after %u misses\n",
sc->beacon.bmisscnt);
sc->beacon.bmisscnt = 0;
}
/*
* Handle slot time change when a non-ERP station joins/leaves
* an 11g network. The 802.11 layer notifies us via callback,
* we mark updateslot, then wait one beacon before effecting
* the change. This gives associated stations at least one
* beacon interval to note the state change.
*
* NB: The slot time change state machine is clocked according
* to whether we are bursting or staggering beacons. We
* recognize the request to update and record the current
* slot then don't transition until that slot is reached
* again. If we miss a beacon for that slot then we'll be
* slow to transition but we'll be sure at least one beacon
* interval has passed. When bursting slot is always left
* set to ATH_BCBUF so this check is a noop.
*/
if (sc->beacon.updateslot == UPDATE) {
sc->beacon.updateslot = COMMIT;
sc->beacon.slotupdate = slot;
} else if (sc->beacon.updateslot == COMMIT &&
sc->beacon.slotupdate == slot) {
ah->slottime = sc->beacon.slottime;
ath9k_hw_init_global_settings(ah);
sc->beacon.updateslot = OK;
}
if (bf) {
ath9k_reset_beacon_status(sc);
ath_dbg(common, BEACON,
"Transmitting beacon for slot: %d\n", slot);
/* NB: cabq traffic should already be queued and primed */
ath9k_hw_puttxbuf(ah, sc->beacon.beaconq, bf->bf_daddr);
if (!edma)
ath9k_hw_txstart(ah, sc->beacon.beaconq);
}
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Luis R. Rodriguez | 173 | 35.97% | 2 | 6.25% |
Sujith Manoharan | 112 | 23.28% | 10 | 31.25% |
Felix Fietkau | 111 | 23.08% | 9 | 28.12% |
Rajkumar Manoharan | 33 | 6.86% | 3 | 9.38% |
Mohammed Shafi Shajakhan | 20 | 4.16% | 1 | 3.12% |
Michal Kazior | 13 | 2.70% | 1 | 3.12% |
Jouni Malinen | 9 | 1.87% | 2 | 6.25% |
Joe Perches | 5 | 1.04% | 2 | 6.25% |
Oleksij Rempel | 3 | 0.62% | 1 | 3.12% |
Jeff Hansen | 2 | 0.42% | 1 | 3.12% |
Total | 481 | 100.00% | 32 | 100.00% |
/*
* Both nexttbtt and intval have to be in usecs.
*/
static void ath9k_beacon_init(struct ath_softc *sc, u32 nexttbtt,
u32 intval)
{
struct ath_hw *ah = sc->sc_ah;
ath9k_hw_disable_interrupts(ah);
ath9k_beaconq_config(sc);
ath9k_hw_beaconinit(ah, nexttbtt, intval);
ah->imask |= ATH9K_INT_SWBA;
sc->beacon.bmisscnt = 0;
ath9k_hw_set_interrupts(ah);
ath9k_hw_enable_interrupts(ah);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sujith Manoharan | 31 | 44.93% | 3 | 50.00% |
Luis R. Rodriguez | 26 | 37.68% | 1 | 16.67% |
Benjamin Berg | 6 | 8.70% | 1 | 16.67% |
Felix Fietkau | 6 | 8.70% | 1 | 16.67% |
Total | 69 | 100.00% | 6 | 100.00% |
static void ath9k_beacon_stop(struct ath_softc *sc)
{
ath9k_hw_disable_interrupts(sc->sc_ah);
sc->sc_ah->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS);
sc->beacon.bmisscnt = 0;
ath9k_hw_set_interrupts(sc->sc_ah);
ath9k_hw_enable_interrupts(sc->sc_ah);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Benjamin Berg | 53 | 100.00% | 1 | 100.00% |
Total | 53 | 100.00% | 1 | 100.00% |
/*
* For multi-bss ap support beacons are either staggered evenly over N slots or
* burst together. For the former arrange for the SWBA to be delivered for each
* slot. Slots that are not occupied will generate nothing.
*/
static void ath9k_beacon_config_ap(struct ath_softc *sc,
struct ath_beacon_config *conf)
{
struct ath_hw *ah = sc->sc_ah;
ath9k_cmn_beacon_config_ap(ah, conf, ATH_BCBUF);
ath9k_beacon_init(sc, conf->nexttbtt, conf->intval);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sujith Manoharan | 20 | 42.55% | 4 | 50.00% |
Luis R. Rodriguez | 10 | 21.28% | 1 | 12.50% |
Pavel Roskin | 9 | 19.15% | 1 | 12.50% |
Oleksij Rempel | 5 | 10.64% | 1 | 12.50% |
Felix Fietkau | 3 | 6.38% | 1 | 12.50% |
Total | 47 | 100.00% | 8 | 100.00% |
static void ath9k_beacon_config_sta(struct ath_hw *ah,
struct ath_beacon_config *conf)
{
struct ath9k_beacon_state bs;
if (ath9k_cmn_beacon_config_sta(ah, conf, &bs) == -EPERM)
return;
ath9k_hw_disable_interrupts(ah);
ath9k_hw_set_sta_beacon_timers(ah, &bs);
ah->imask |= ATH9K_INT_BMISS;
ath9k_hw_set_interrupts(ah);
ath9k_hw_enable_interrupts(ah);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Luis R. Rodriguez | 24 | 36.92% | 1 | 10.00% |
Sujith Manoharan | 18 | 27.69% | 3 | 30.00% |
Oleksij Rempel | 8 | 12.31% | 1 | 10.00% |
Rajkumar Manoharan | 6 | 9.23% | 1 | 10.00% |
Pavel Roskin | 5 | 7.69% | 1 | 10.00% |
Felix Fietkau | 2 | 3.08% | 2 | 20.00% |
Senthil Balasubramanian | 2 | 3.08% | 1 | 10.00% |
Total | 65 | 100.00% | 10 | 100.00% |
static void ath9k_beacon_config_adhoc(struct ath_softc *sc,
struct ath_beacon_config *conf)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
ath9k_reset_beacon_status(sc);
ath9k_cmn_beacon_config_adhoc(ah, conf);
ath9k_beacon_init(sc, conf->nexttbtt, conf->intval);
/*
* Set the global 'beacon has been configured' flag for the
* joiner case in IBSS mode.
*/
if (!conf->ibss_creator && conf->enable_beacon)
set_bit(ATH_OP_BEACONS, &common->op_flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sujith Manoharan | 39 | 47.56% | 3 | 30.00% |
Luis R. Rodriguez | 15 | 18.29% | 2 | 20.00% |
Pavel Roskin | 10 | 12.20% | 1 | 10.00% |
Benjamin Berg | 6 | 7.32% | 1 | 10.00% |
Felix Fietkau | 5 | 6.10% | 1 | 10.00% |
Rajkumar Manoharan | 4 | 4.88% | 1 | 10.00% |
Oleksij Rempel | 3 | 3.66% | 1 | 10.00% |
Total | 82 | 100.00% | 10 | 100.00% |
static void ath9k_cache_beacon_config(struct ath_softc *sc,
struct ath_chanctx *ctx,
struct ieee80211_bss_conf *bss_conf)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_beacon_config *cur_conf = &ctx->beacon;
ath_dbg(common, BEACON,
"Caching beacon data for BSS: %pM\n", bss_conf->bssid);
cur_conf->beacon_interval = bss_conf->beacon_int;
cur_conf->dtim_period = bss_conf->dtim_period;
cur_conf->dtim_count = 1;
cur_conf->ibss_creator = bss_conf->ibss_creator;
/*
* It looks like mac80211 may end up using beacon interval of zero in
* some cases (at least for mesh point). Avoid getting into an
* infinite loop by using a bit safer value instead. To be safe,
* do sanity check on beacon interval for all operating modes.
*/
if (cur_conf->beacon_interval == 0)
cur_conf->beacon_interval = 100;
cur_conf->bmiss_timeout =
ATH_DEFAULT_BMISS_LIMIT * cur_conf->beacon_interval;
/*
* We don't parse dtim period from mac80211 during the driver
* initialization as it breaks association with hidden-ssid
* AP and it causes latency in roaming
*/
if (cur_conf->dtim_period == 0)
cur_conf->dtim_period = 1;
ath9k_set_tsfadjust(sc, cur_conf);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sujith Manoharan | 39 | 29.32% | 3 | 25.00% |
Vasanthakumar Thiagarajan | 33 | 24.81% | 2 | 16.67% |
Rajkumar Manoharan | 29 | 21.80% | 3 | 25.00% |
Mohammed Shafi Shajakhan | 15 | 11.28% | 2 | 16.67% |
Ben Greear | 10 | 7.52% | 1 | 8.33% |
Benjamin Berg | 7 | 5.26% | 1 | 8.33% |
Total | 133 | 100.00% | 12 | 100.00% |
void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif,
bool beacons)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath_vif *avp;
struct ath_chanctx *ctx;
struct ath_beacon_config *cur_conf;
unsigned long flags;
bool enabled;
bool skip_beacon = false;
if (!beacons) {
clear_bit(ATH_OP_BEACONS, &common->op_flags);
ath9k_beacon_stop(sc);
return;
}
if (WARN_ON(!main_vif))
return;
avp = (void *)main_vif->drv_priv;
ctx = avp->chanctx;
cur_conf = &ctx->beacon;
enabled = cur_conf->enable_beacon;
cur_conf->enable_beacon = beacons;
if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION) {
ath9k_cache_beacon_config(sc, ctx, &main_vif->bss_conf);
ath9k_set_beacon(sc);
set_bit(ATH_OP_BEACONS, &common->op_flags);
return;
}
/* Update the beacon configuration. */
ath9k_cache_beacon_config(sc, ctx, &main_vif->bss_conf);
/*
* Configure the HW beacon registers only when we have a valid
* beacon interval.
*/
if (cur_conf->beacon_interval) {
/* Special case to sync the TSF when joining an existing IBSS.
* This is only done if no AP interface is active.
* Note that mac80211 always resets the TSF when creating a new
* IBSS interface.
*/
if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC &&
!enabled && beacons && !main_vif->bss_conf.ibss_creator) {
spin_lock_irqsave(&sc->sc_pm_lock, flags);
sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
skip_beacon = true;
}
/*
* Do not set the ATH_OP_BEACONS flag for IBSS joiner mode
* here, it is done in ath9k_beacon_config_adhoc().
*/
if (beacons && !skip_beacon) {
set_bit(ATH_OP_BEACONS, &common->op_flags);
ath9k_set_beacon(sc);
} else {
clear_bit(ATH_OP_BEACONS, &common->op_flags);
ath9k_beacon_stop(sc);
}
} else {
clear_bit(ATH_OP_BEACONS, &common->op_flags);
ath9k_beacon_stop(sc);
}
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sujith Manoharan | 118 | 37.94% | 2 | 28.57% |
Benjamin Berg | 116 | 37.30% | 1 | 14.29% |
Rajkumar Manoharan | 37 | 11.90% | 2 | 28.57% |
Oleksij Rempel | 28 | 9.00% | 1 | 14.29% |
Felix Fietkau | 12 | 3.86% | 1 | 14.29% |
Total | 311 | 100.00% | 7 | 100.00% |
void ath9k_set_beacon(struct ath_softc *sc)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon;
switch (sc->sc_ah->opmode) {
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_MESH_POINT:
ath9k_beacon_config_ap(sc, cur_conf);
break;
case NL80211_IFTYPE_ADHOC:
ath9k_beacon_config_adhoc(sc, cur_conf);
break;
case NL80211_IFTYPE_STATION:
ath9k_beacon_config_sta(sc->sc_ah, cur_conf);
break;
default:
ath_dbg(common, CONFIG, "Unsupported beaconing mode\n");
return;
}
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sujith Manoharan | 42 | 45.16% | 2 | 15.38% |
Rajkumar Manoharan | 33 | 35.48% | 3 | 23.08% |
Felix Fietkau | 5 | 5.38% | 1 | 7.69% |
Luis R. Rodriguez | 3 | 3.23% | 2 | 15.38% |
Thomas Pedersen | 3 | 3.23% | 1 | 7.69% |
Vasanthakumar Thiagarajan | 3 | 3.23% | 1 | 7.69% |
Oleksij Rempel | 2 | 2.15% | 1 | 7.69% |
Joe Perches | 2 | 2.15% | 2 | 15.38% |
Total | 93 | 100.00% | 13 | 100.00% |
Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sujith Manoharan | 855 | 26.09% | 35 | 28.00% |
Luis R. Rodriguez | 827 | 25.24% | 6 | 4.80% |
Benjamin Berg | 542 | 16.54% | 3 | 2.40% |
Felix Fietkau | 355 | 10.83% | 29 | 23.20% |
Rajkumar Manoharan | 150 | 4.58% | 10 | 8.00% |
Jouni Malinen | 133 | 4.06% | 8 | 6.40% |
Michal Kazior | 71 | 2.17% | 1 | 0.80% |
Oleksij Rempel | 50 | 1.53% | 5 | 4.00% |
Simon Wunderlich | 44 | 1.34% | 1 | 0.80% |
Vasanthakumar Thiagarajan | 41 | 1.25% | 3 | 2.40% |
Mohammed Shafi Shajakhan | 39 | 1.19% | 4 | 3.20% |
Vivek Natarajan | 37 | 1.13% | 2 | 1.60% |
Ben Greear | 31 | 0.95% | 3 | 2.40% |
Pavel Roskin | 24 | 0.73% | 1 | 0.80% |
Thomas Pedersen | 19 | 0.58% | 1 | 0.80% |
Lorenzo Bianconi | 18 | 0.55% | 1 | 0.80% |
Gabor Juhos | 15 | 0.46% | 2 | 1.60% |
Joe Perches | 12 | 0.37% | 3 | 2.40% |
Alexey Dobriyan | 3 | 0.09% | 1 | 0.80% |
Janusz Dziedzic | 3 | 0.09% | 1 | 0.80% |
Jeff Hansen | 2 | 0.06% | 1 | 0.80% |
Karl Beldan | 2 | 0.06% | 1 | 0.80% |
Senthil Balasubramanian | 2 | 0.06% | 1 | 0.80% |
Colin McCabe | 1 | 0.03% | 1 | 0.80% |
Steve Brown | 1 | 0.03% | 1 | 0.80% |
Total | 3277 | 100.00% | 125 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.