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ath9k: Summarize hw state per channel context 

Group and set hw state (opmode, primary_sta, beacon conf) per
channel context instead of whole list of vifs. This would allow
each channel context to run in different mode (STA/AP).

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2014-06-11 16:18:03 +05:30 committed by John W. Linville
parent ca900ac9d9
commit 9a9c4fbc3f
4 changed files with 183 additions and 157 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/wireless/ath/ath9k/ath9k.h
View File

@ -328,6 +328,9 @@ struct ath_chanctx {
struct list_head vifs;
struct list_head acq[IEEE80211_NUM_ACS];
/* do not dereference, use for comparison only */
struct ieee80211_vif *primary_sta;
struct ath_beacon_config beacon;
struct ath9k_hw_cal_data caldata;
struct timespec tsf_ts;
@ -438,7 +441,6 @@ struct ath_vif {
struct ieee80211_vif *vif;
struct ath_node mcast_node;
int av_bslot;
bool primary_sta_vif;
__le64 tsf_adjust; /* TSF adjustment for staggered beacons */
struct ath_buf *av_bcbuf;
struct ath_chanctx *chanctx;
@ -451,17 +453,22 @@ struct ath9k_vif_iter_data {
u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
u8 mask[ETH_ALEN]; /* bssid mask */
bool has_hw_macaddr;
u8 slottime;
bool beacons;
int naps; /* number of AP vifs */
int nmeshes; /* number of mesh vifs */
int nstations; /* number of station vifs */
int nwds; /* number of WDS vifs */
int nadhocs; /* number of adhoc vifs */
struct ieee80211_vif *primary_sta;
};
void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
void ath9k_calculate_iter_data(struct ath_softc *sc,
struct ath_chanctx *ctx,
struct ath9k_vif_iter_data *iter_data);
void ath9k_calculate_summary_state(struct ath_softc *sc,
struct ath_chanctx *ctx);
/*******************/
/* Beacon Handling */

28
drivers/net/wireless/ath/ath9k/beacon.c
View File

@ -277,8 +277,8 @@ static int ath9k_beacon_choose_slot(struct ath_softc *sc)
static void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon;
struct ath_vif *avp = (void *)vif->drv_priv;
struct ath_beacon_config *cur_conf = &avp->chanctx->beacon;
u32 tsfadjust;
if (avp->av_bslot == 0)
@ -500,7 +500,6 @@ static bool ath9k_allow_beacon_config(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;
if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
if ((vif->type != NL80211_IFTYPE_AP) ||
@ -514,7 +513,7 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc,
if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION) {
if ((vif->type == NL80211_IFTYPE_STATION) &&
test_bit(ATH_OP_BEACONS, &common->op_flags) &&
!avp->primary_sta_vif) {
vif != sc->cur_chan->primary_sta) {
ath_dbg(common, CONFIG,
"Beacon already configured for a station interface\n");
return false;
@ -525,10 +524,11 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc,
}
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 = &sc->cur_chan->beacon;
struct ath_beacon_config *cur_conf = &ctx->beacon;
ath_dbg(common, BEACON,
"Caching beacon data for BSS: %pM\n", bss_conf->bssid);
@ -564,20 +564,29 @@ void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
u32 changed)
{
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath_vif *avp = (void *)vif->drv_priv;
struct ath_chanctx *ctx = avp->chanctx;
struct ath_beacon_config *cur_conf;
unsigned long flags;
bool skip_beacon = false;
if (!ctx)
return;
cur_conf = &avp->chanctx->beacon;
if (vif->type == NL80211_IFTYPE_AP)
ath9k_set_tsfadjust(sc, vif);
if (!ath9k_allow_beacon_config(sc, vif))
return;
if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION) {
ath9k_cache_beacon_config(sc, bss_conf);
if (vif->type == NL80211_IFTYPE_STATION) {
ath9k_cache_beacon_config(sc, ctx, bss_conf);
if (ctx != sc->cur_chan)
return;
ath9k_set_beacon(sc);
set_bit(ATH_OP_BEACONS, &common->op_flags);
return;
@ -593,10 +602,13 @@ void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
cur_conf->enable_beacon = false;
} else if (bss_conf->enable_beacon) {
cur_conf->enable_beacon = true;
ath9k_cache_beacon_config(sc, bss_conf);
ath9k_cache_beacon_config(sc, ctx, bss_conf);
}
}
if (ctx != sc->cur_chan)
return;
/*
* Configure the HW beacon registers only when we have a valid
* beacon interval.

24
drivers/net/wireless/ath/ath9k/debug.c
View File

@ -750,13 +750,13 @@ static ssize_t read_file_misc(struct file *file, char __user *user_buf,
{
struct ath_softc *sc = file->private_data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ieee80211_hw *hw = sc->hw;
struct ath9k_vif_iter_data iter_data;
struct ath_chanctx *ctx;
char buf[512];
unsigned int len = 0;
ssize_t retval = 0;
unsigned int reg;
u32 rxfilter;
u32 rxfilter, i;
len += scnprintf(buf + len, sizeof(buf) - len,
"BSSID: %pM\n", common->curbssid);
@ -826,14 +826,20 @@ static ssize_t read_file_misc(struct file *file, char __user *user_buf,
len += scnprintf(buf + len, sizeof(buf) - len, "\n");
ath9k_calculate_iter_data(hw, NULL, &iter_data);
i = 0;
ath_for_each_chanctx(sc, ctx) {
if (!ctx->assigned || list_empty(&ctx->vifs))
continue;
ath9k_calculate_iter_data(sc, ctx, &iter_data);
len += scnprintf(buf + len, sizeof(buf) - len,
"VIF-COUNTS: AP: %i STA: %i MESH: %i WDS: %i"
" ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
iter_data.naps, iter_data.nstations, iter_data.nmeshes,
iter_data.nwds, iter_data.nadhocs,
sc->nvifs, sc->nbcnvifs);
len += scnprintf(buf + len, sizeof(buf) - len,
"VIF-COUNTS: CTX %i AP: %i STA: %i MESH: %i WDS: %i",
i++, iter_data.naps, iter_data.nstations,
iter_data.nmeshes, iter_data.nwds);
len += scnprintf(buf + len, sizeof(buf) - len,
" ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
iter_data.nadhocs, sc->nvifs, sc->nbcnvifs);
}
if (len > sizeof(buf))
len = sizeof(buf);

275
drivers/net/wireless/ath/ath9k/main.c
View File

@ -19,9 +19,6 @@
#include "ath9k.h"
#include "btcoex.h"
static void ath9k_set_assoc_state(struct ath_softc *sc,
struct ieee80211_vif *vif);
u8 ath9k_parse_mpdudensity(u8 mpdudensity)
{
/*
@ -236,8 +233,7 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
sc->cur_chan->txpower, &sc->curtxpow);
clear_bit(ATH_OP_HW_RESET, &common->op_flags);
ath9k_hw_set_interrupts(ah);
ath9k_hw_enable_interrupts(ah);
ath9k_calculate_summary_state(sc, sc->cur_chan);
if (!sc->cur_chan->offchannel && start) {
/* restore per chanctx TSF timer */
@ -267,6 +263,10 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
}
sc->gtt_cnt = 0;
ath9k_hw_set_interrupts(ah);
ath9k_hw_enable_interrupts(ah);
ieee80211_wake_queues(sc->hw);
ath9k_p2p_ps_timer(sc);
@ -905,18 +905,29 @@ static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
iter_data->has_hw_macaddr = true;
}
if (!vif->bss_conf.use_short_slot)
iter_data->slottime = ATH9K_SLOT_TIME_20;
switch (vif->type) {
case NL80211_IFTYPE_AP:
iter_data->naps++;
if (vif->bss_conf.enable_beacon)
iter_data->beacons = true;
break;
case NL80211_IFTYPE_STATION:
iter_data->nstations++;
if (vif->bss_conf.assoc && !iter_data->primary_sta)
iter_data->primary_sta = vif;
break;
case NL80211_IFTYPE_ADHOC:
iter_data->nadhocs++;
if (vif->bss_conf.enable_beacon)
iter_data->beacons = true;
break;
case NL80211_IFTYPE_MESH_POINT:
iter_data->nmeshes++;
if (vif->bss_conf.enable_beacon)
iter_data->beacons = true;
break;
case NL80211_IFTYPE_WDS:
iter_data->nwds++;
@ -926,26 +937,12 @@ static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
}
}
static void ath9k_sta_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
{
struct ath_softc *sc = data;
struct ath_vif *avp = (void *)vif->drv_priv;
if (vif->type != NL80211_IFTYPE_STATION)
return;
if (avp->primary_sta_vif)
ath9k_set_assoc_state(sc, vif);
}
/* Called with sc->mutex held. */
void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
void ath9k_calculate_iter_data(struct ath_softc *sc,
struct ath_chanctx *ctx,
struct ath9k_vif_iter_data *iter_data)
{
struct ath_softc *sc = hw->priv;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath_vif *avp;
/*
* Pick the MAC address of the first interface as the new hardware
@ -954,29 +951,80 @@ void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
*/
memset(iter_data, 0, sizeof(*iter_data));
memset(&iter_data->mask, 0xff, ETH_ALEN);
iter_data->slottime = ATH9K_SLOT_TIME_9;
if (vif)
ath9k_vif_iter(iter_data, vif->addr, vif);
list_for_each_entry(avp, &ctx->vifs, list)
ath9k_vif_iter(iter_data, avp->vif->addr, avp->vif);
/* Get list of all active MAC addresses */
ieee80211_iterate_active_interfaces_atomic(
sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
ath9k_vif_iter, iter_data);
if (ctx == &sc->offchannel.chan) {
struct ieee80211_vif *vif;
memcpy(common->macaddr, iter_data->hw_macaddr, ETH_ALEN);
if (sc->offchannel.state < ATH_OFFCHANNEL_ROC_START)
vif = sc->offchannel.scan_vif;
else
vif = sc->offchannel.roc_vif;
if (vif)
ath9k_vif_iter(iter_data, vif->addr, vif);
iter_data->beacons = false;
}
}
static void ath9k_set_assoc_state(struct ath_softc *sc,
struct ieee80211_vif *vif, bool changed)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
unsigned long flags;
set_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
/* Set the AID, BSSID and do beacon-sync only when
* the HW opmode is STATION.
*
* But the primary bit is set above in any case.
*/
if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
return;
ether_addr_copy(common->curbssid, bss_conf->bssid);
common->curaid = bss_conf->aid;
ath9k_hw_write_associd(sc->sc_ah);
if (changed) {
common->last_rssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
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);
}
if (ath9k_hw_mci_is_enabled(sc->sc_ah))
ath9k_mci_update_wlan_channels(sc, false);
ath_dbg(common, CONFIG,
"Primary Station interface: %pM, BSSID: %pM\n",
vif->addr, common->curbssid);
}
/* Called with sc->mutex held. */
static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
void ath9k_calculate_summary_state(struct ath_softc *sc,
struct ath_chanctx *ctx)
{
struct ath_softc *sc = hw->priv;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_vif_iter_data iter_data;
enum nl80211_iftype old_opmode = ah->opmode;
ath9k_calculate_iter_data(hw, vif, &iter_data);
ath_chanctx_check_active(sc, ctx);
if (ctx != sc->cur_chan)
return;
ath9k_ps_wakeup(sc);
ath9k_calculate_iter_data(sc, ctx, &iter_data);
if (iter_data.has_hw_macaddr)
ether_addr_copy(common->macaddr, iter_data.hw_macaddr);
memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
ath_hw_setbssidmask(common);
@ -1004,19 +1052,48 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
else
ah->imask &= ~ATH9K_INT_TSFOOR;
ah->imask &= ~ATH9K_INT_SWBA;
if (ah->opmode == NL80211_IFTYPE_STATION) {
bool changed = (iter_data.primary_sta != ctx->primary_sta);
iter_data.beacons = true;
if (iter_data.primary_sta) {
ath9k_set_assoc_state(sc, iter_data.primary_sta,
changed);
if (!ctx->primary_sta ||
!ctx->primary_sta->bss_conf.assoc)
ctx->primary_sta = iter_data.primary_sta;
} else {
ctx->primary_sta = NULL;
memset(common->curbssid, 0, ETH_ALEN);
common->curaid = 0;
ath9k_hw_write_associd(sc->sc_ah);
if (ath9k_hw_mci_is_enabled(sc->sc_ah))
ath9k_mci_update_wlan_channels(sc, true);
}
} else if (iter_data.beacons) {
ah->imask |= ATH9K_INT_SWBA;
}
ath9k_hw_set_interrupts(ah);
/*
* If we are changing the opmode to STATION,
* a beacon sync needs to be done.
*/
if (ah->opmode == NL80211_IFTYPE_STATION &&
old_opmode == NL80211_IFTYPE_AP &&
test_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags)) {
ieee80211_iterate_active_interfaces_atomic(
sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
ath9k_sta_vif_iter, sc);
if (iter_data.beacons)
set_bit(ATH_OP_BEACONS, &common->op_flags);
else
clear_bit(ATH_OP_BEACONS, &common->op_flags);
if (ah->slottime != iter_data.slottime) {
ah->slottime = iter_data.slottime;
ath9k_hw_init_global_settings(ah);
}
if (iter_data.primary_sta)
set_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
else
clear_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
ctx->primary_sta = iter_data.primary_sta;
ath9k_ps_restore(sc);
}
static int ath9k_add_interface(struct ieee80211_hw *hw,
@ -1041,16 +1118,14 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
sc->nvifs++;
ath9k_ps_wakeup(sc);
ath9k_calculate_summary_state(hw, vif);
ath9k_ps_restore(sc);
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_assign_slot(sc, vif);
avp->vif = vif;
if (!ath9k_use_chanctx)
if (!ath9k_use_chanctx) {
avp->chanctx = sc->cur_chan;
list_add_tail(&avp->list, &avp->chanctx->vifs);
}
an->sc = sc;
an->sta = NULL;
@ -1086,13 +1161,10 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
vif->type = new_type;
vif->p2p = p2p;
ath9k_ps_wakeup(sc);
ath9k_calculate_summary_state(hw, vif);
ath9k_ps_restore(sc);
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_assign_slot(sc, vif);
ath_chanctx_check_active(sc, avp->chanctx);
ath9k_calculate_summary_state(sc, avp->chanctx);
mutex_unlock(&sc->mutex);
return 0;
@ -1141,14 +1213,12 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
sc->nvifs--;
sc->tx99_vif = NULL;
if (!ath9k_use_chanctx)
list_del(&avp->list);
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_remove_slot(sc, vif);
ath9k_ps_wakeup(sc);
ath9k_calculate_summary_state(hw, NULL);
ath9k_ps_restore(sc);
ath_tx_node_cleanup(sc, &avp->mcast_node);
mutex_unlock(&sc->mutex);
@ -1585,58 +1655,6 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
return ret;
}
static void ath9k_set_assoc_state(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 ieee80211_bss_conf *bss_conf = &vif->bss_conf;
unsigned long flags;
set_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
avp->primary_sta_vif = true;
/*
* Set the AID, BSSID and do beacon-sync only when
* the HW opmode is STATION.
*
* But the primary bit is set above in any case.
*/
if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
return;
memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
common->curaid = bss_conf->aid;
ath9k_hw_write_associd(sc->sc_ah);
common->last_rssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
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);
if (ath9k_hw_mci_is_enabled(sc->sc_ah))
ath9k_mci_update_wlan_channels(sc, false);
ath_dbg(common, CONFIG,
"Primary Station interface: %pM, BSSID: %pM\n",
vif->addr, common->curbssid);
}
static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
{
struct ath_softc *sc = data;
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
if (test_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags))
return;
if (bss_conf->assoc)
ath9k_set_assoc_state(sc, vif);
}
void ath9k_p2p_ps_timer(void *priv)
{
struct ath_softc *sc = priv;
@ -1646,7 +1664,7 @@ void ath9k_p2p_ps_timer(void *priv)
struct ath_node *an;
u32 tsf;
if (!avp)
if (!avp || avp->chanctx != sc->cur_chan)
return;
tsf = ath9k_hw_gettsf32(sc->sc_ah);
@ -1721,28 +1739,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n",
bss_conf->bssid, bss_conf->assoc);
if (avp->primary_sta_vif && !bss_conf->assoc) {
clear_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
avp->primary_sta_vif = false;
if (ah->opmode == NL80211_IFTYPE_STATION)
clear_bit(ATH_OP_BEACONS, &common->op_flags);
}
ieee80211_iterate_active_interfaces_atomic(
sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
ath9k_bss_assoc_iter, sc);
if (!test_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags) &&
ah->opmode == NL80211_IFTYPE_STATION) {
memset(common->curbssid, 0, ETH_ALEN);
common->curaid = 0;
ath9k_hw_write_associd(sc->sc_ah);
if (ath9k_hw_mci_is_enabled(sc->sc_ah))
ath9k_mci_update_wlan_channels(sc, true);
}
ath_chanctx_check_active(sc, avp->chanctx);
ath9k_calculate_summary_state(sc, avp->chanctx);
}
if (changed & BSS_CHANGED_IBSS) {
@ -1752,10 +1749,14 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
}
if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
(changed & BSS_CHANGED_BEACON_INT))
(changed & BSS_CHANGED_BEACON_INT)) {
if (changed & BSS_CHANGED_BEACON_ENABLED)
ath9k_calculate_summary_state(sc, avp->chanctx);
ath9k_beacon_config(sc, vif, changed);
}
if (changed & BSS_CHANGED_ERP_SLOT) {
if ((avp->chanctx == sc->cur_chan) &&
(changed & BSS_CHANGED_ERP_SLOT)) {
if (bss_conf->use_short_slot)
slottime = 9;
else
@ -2500,7 +2501,7 @@ static int ath9k_assign_vif_chanctx(struct ieee80211_hw *hw,
mutex_lock(&sc->mutex);
avp->chanctx = ctx;
list_add_tail(&avp->list, &ctx->vifs);
ath_chanctx_check_active(sc, ctx);
ath9k_calculate_summary_state(sc, ctx);
mutex_unlock(&sc->mutex);
return 0;
@ -2517,7 +2518,7 @@ static void ath9k_unassign_vif_chanctx(struct ieee80211_hw *hw,
mutex_lock(&sc->mutex);
avp->chanctx = NULL;
list_del(&avp->list);
ath_chanctx_check_active(sc, ctx);
ath9k_calculate_summary_state(sc, ctx);
mutex_unlock(&sc->mutex);
}