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authorJohannes Berg <johannes.berg@intel.com>2017-12-19 10:11:54 +0100
committerJohannes Berg <johannes.berg@intel.com>2017-12-19 10:12:48 +0100
commite7881bd5942df7df2fc450fd2aaa753fc4c4e125 (patch)
tree936a15e2817360d322ebe90373099da0d3f478a9 /net/mac80211
parent0973dd45ecefd746569d414406f5733062fe2817 (diff)
downloadlinux-e7881bd5942df7df2fc450fd2aaa753fc4c4e125.tar.bz2
Revert "mac80211: Add TXQ scheduling API"
This reverts commit e937b8da5a591f141fe41aa48a2e898df9888c95. Turns out that a new driver (mt76) is coming in through Kalle's tree, and will conflict with this. It also has some conflicting requirements, so we'll revisit this later. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/agg-tx.c6
-rw-r--r--net/mac80211/driver-ops.h12
-rw-r--r--net/mac80211/ieee80211_i.h5
-rw-r--r--net/mac80211/main.c3
-rw-r--r--net/mac80211/sta_info.c7
-rw-r--r--net/mac80211/trace.h32
-rw-r--r--net/mac80211/tx.c49
7 files changed, 41 insertions, 73 deletions
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 6c6cad98ce92..595c662a61e8 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -226,13 +226,9 @@ ieee80211_agg_start_txq(struct sta_info *sta, int tid, bool enable)
clear_bit(IEEE80211_TXQ_AMPDU, &txqi->flags);
clear_bit(IEEE80211_TXQ_STOP, &txqi->flags);
-
- if (!ieee80211_schedule_txq(&sta->sdata->local->hw, txq))
- return;
-
local_bh_disable();
rcu_read_lock();
- drv_wake_tx_queue(sta->sdata->local);
+ drv_wake_tx_queue(sta->sdata->local, txqi);
rcu_read_unlock();
local_bh_enable();
}
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index cdd76306cb8f..c7f93fd9ca7a 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1158,10 +1158,16 @@ drv_tdls_recv_channel_switch(struct ieee80211_local *local,
trace_drv_return_void(local);
}
-static inline void drv_wake_tx_queue(struct ieee80211_local *local)
+static inline void drv_wake_tx_queue(struct ieee80211_local *local,
+ struct txq_info *txq)
{
- trace_drv_wake_tx_queue(local);
- local->ops->wake_tx_queue(&local->hw);
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(txq->txq.vif);
+
+ if (!check_sdata_in_driver(sdata))
+ return;
+
+ trace_drv_wake_tx_queue(local, sdata, txq);
+ local->ops->wake_tx_queue(&local->hw, &txq->txq);
}
static inline int drv_start_nan(struct ieee80211_local *local,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 4155838c7bef..26900025de2f 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -832,7 +832,6 @@ struct txq_info {
struct codel_vars def_cvars;
struct codel_stats cstats;
struct sk_buff_head frags;
- struct list_head schedule_order;
unsigned long flags;
/* keep last! */
@@ -1123,10 +1122,6 @@ struct ieee80211_local {
struct codel_vars *cvars;
struct codel_params cparams;
- /* protects active_txqs and txqi->schedule_order */
- spinlock_t active_txq_lock;
- struct list_head active_txqs;
-
const struct ieee80211_ops *ops;
/*
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 935d6e2491b1..0785d04a80bc 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -619,9 +619,6 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
spin_lock_init(&local->rx_path_lock);
spin_lock_init(&local->queue_stop_reason_lock);
- INIT_LIST_HEAD(&local->active_txqs);
- spin_lock_init(&local->active_txq_lock);
-
INIT_LIST_HEAD(&local->chanctx_list);
mutex_init(&local->chanctx_mtx);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index e0bcf16df494..0c5627f8a104 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1237,17 +1237,12 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
drv_sta_notify(local, sdata, STA_NOTIFY_AWAKE, &sta->sta);
if (sta->sta.txq[0]) {
- bool wake = false;
-
for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
if (!txq_has_queue(sta->sta.txq[i]))
continue;
- if (ieee80211_schedule_txq(&local->hw, sta->sta.txq[i]))
- wake = true;
+ drv_wake_tx_queue(local, to_txq_info(sta->sta.txq[i]));
}
- if (wake)
- drv_wake_tx_queue(local);
}
skb_queue_head_init(&pending);
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 08eaad85942e..591ad02e1fa4 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -2550,9 +2550,35 @@ TRACE_EVENT(drv_tdls_recv_channel_switch,
)
);
-DEFINE_EVENT(local_only_evt, drv_wake_tx_queue,
- TP_PROTO(struct ieee80211_local *local),
- TP_ARGS(local)
+TRACE_EVENT(drv_wake_tx_queue,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct txq_info *txq),
+
+ TP_ARGS(local, sdata, txq),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ STA_ENTRY
+ __field(u8, ac)
+ __field(u8, tid)
+ ),
+
+ TP_fast_assign(
+ struct ieee80211_sta *sta = txq->txq.sta;
+
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ STA_ASSIGN;
+ __entry->ac = txq->txq.ac;
+ __entry->tid = txq->txq.tid;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT STA_PR_FMT " ac:%d tid:%d",
+ LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG, __entry->ac, __entry->tid
+ )
);
#endif /* !__MAC80211_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 842881ca8f20..25904af38839 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1439,7 +1439,6 @@ void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
codel_vars_init(&txqi->def_cvars);
codel_stats_init(&txqi->cstats);
__skb_queue_head_init(&txqi->frags);
- INIT_LIST_HEAD(&txqi->schedule_order);
txqi->txq.vif = &sdata->vif;
@@ -1463,7 +1462,6 @@ void ieee80211_txq_purge(struct ieee80211_local *local,
fq_tin_reset(fq, tin, fq_skb_free_func);
ieee80211_purge_tx_queue(&local->hw, &txqi->frags);
- list_del_init(&txqi->schedule_order);
}
int ieee80211_txq_setup_flows(struct ieee80211_local *local)
@@ -1560,8 +1558,7 @@ static bool ieee80211_queue_skb(struct ieee80211_local *local,
ieee80211_txq_enqueue(local, txqi, skb);
spin_unlock_bh(&fq->lock);
- if (ieee80211_schedule_txq(&local->hw, &txqi->txq))
- drv_wake_tx_queue(local);
+ drv_wake_tx_queue(local, txqi);
return true;
}
@@ -3556,50 +3553,6 @@ out:
}
EXPORT_SYMBOL(ieee80211_tx_dequeue);
-bool ieee80211_schedule_txq(struct ieee80211_hw *hw,
- struct ieee80211_txq *txq)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct txq_info *txqi = to_txq_info(txq);
- bool ret = false;
-
- spin_lock_bh(&local->active_txq_lock);
-
- if (list_empty(&txqi->schedule_order)) {
- list_add_tail(&txqi->schedule_order, &local->active_txqs);
- ret = true;
- }
-
- spin_unlock_bh(&local->active_txq_lock);
-
- return ret;
-}
-EXPORT_SYMBOL(ieee80211_schedule_txq);
-
-struct ieee80211_txq *ieee80211_next_txq(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct txq_info *txqi = NULL;
-
- spin_lock_bh(&local->active_txq_lock);
-
- if (list_empty(&local->active_txqs))
- goto out;
-
- txqi = list_first_entry(&local->active_txqs,
- struct txq_info, schedule_order);
- list_del_init(&txqi->schedule_order);
-
-out:
- spin_unlock_bh(&local->active_txq_lock);
-
- if (!txqi)
- return NULL;
-
- return &txqi->txq;
-}
-EXPORT_SYMBOL(ieee80211_next_txq);
-
void __ieee80211_subif_start_xmit(struct sk_buff *skb,
struct net_device *dev,
u32 info_flags)