From c951ad3550ab40071bb0f222ba6125845769c08a Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 16 Nov 2009 12:00:38 +0100 Subject: mac80211: convert aggregation to operate on vifs/stas The entire aggregation code currently operates on the hw pointer and station addresses, but that needs to change to make stations purely per-vif; As one step preparing for that make the aggregation code callable with the station, or by the combination of virtual interface and station address. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/agg-rx.c | 6 ++- net/mac80211/agg-tx.c | 96 ++++++++++++++++++--------------------------- net/mac80211/driver-ops.h | 5 ++- net/mac80211/driver-trace.h | 9 +++-- net/mac80211/ht.c | 3 +- net/mac80211/ieee80211_i.h | 3 +- net/mac80211/main.c | 8 ++-- 7 files changed, 58 insertions(+), 72 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index bc064d7933ff..f3a5c9e0578d 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -41,7 +41,8 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, sta->sta.addr, tid); #endif /* CONFIG_MAC80211_HT_DEBUG */ - if (drv_ampdu_action(local, IEEE80211_AMPDU_RX_STOP, + if (drv_ampdu_action(local, &sta->sdata->vif, + IEEE80211_AMPDU_RX_STOP, &sta->sta, tid, NULL)) printk(KERN_DEBUG "HW problem - can not stop rx " "aggregation for tid %d\n", tid); @@ -284,7 +285,8 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, goto end; } - ret = drv_ampdu_action(local, IEEE80211_AMPDU_RX_START, + ret = drv_ampdu_action(local, &sta->sdata->vif, + IEEE80211_AMPDU_RX_START, &sta->sta, tid, &start_seq_num); #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret); diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index b09948ceec4a..6ddd11466df2 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -138,7 +138,8 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, *state = HT_AGG_STATE_REQ_STOP_BA_MSK | (initiator << HT_AGG_STATE_INITIATOR_SHIFT); - ret = drv_ampdu_action(local, IEEE80211_AMPDU_TX_STOP, + ret = drv_ampdu_action(local, &sta->sdata->vif, + IEEE80211_AMPDU_TX_STOP, &sta->sta, tid, NULL); /* HW shall not deny going back to legacy */ @@ -196,11 +197,11 @@ static inline int ieee80211_ac_from_tid(int tid) return ieee802_1d_to_ac[tid & 7]; } -int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid) +int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid) { - struct ieee80211_local *local = hw_to_local(hw); - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata; + struct sta_info *sta = container_of(pubsta, struct sta_info, sta); + struct ieee80211_sub_if_data *sdata = sta->sdata; + struct ieee80211_local *local = sdata->local; u8 *state; int ret = 0; u16 start_seq_num; @@ -208,52 +209,37 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid) if (WARN_ON(!local->ops->ampdu_action)) return -EINVAL; - if ((tid >= STA_TID_NUM) || !(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION)) + if ((tid >= STA_TID_NUM) || + !(local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)) return -EINVAL; #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Open BA session requested for %pM tid %u\n", - ra, tid); + pubsta->addr, tid); #endif /* CONFIG_MAC80211_HT_DEBUG */ - rcu_read_lock(); - - sta = sta_info_get(local, ra); - if (!sta) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Could not find the station\n"); -#endif - ret = -ENOENT; - goto unlock; - } - /* * The aggregation code is not prepared to handle * anything but STA/AP due to the BSSID handling. * IBSS could work in the code but isn't supported * by drivers or the standard. */ - if (sta->sdata->vif.type != NL80211_IFTYPE_STATION && - sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN && - sta->sdata->vif.type != NL80211_IFTYPE_AP) { - ret = -EINVAL; - goto unlock; - } + if (sdata->vif.type != NL80211_IFTYPE_STATION && + sdata->vif.type != NL80211_IFTYPE_AP_VLAN && + sdata->vif.type != NL80211_IFTYPE_AP) + return -EINVAL; if (test_sta_flags(sta, WLAN_STA_SUSPEND)) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Suspend in progress. " "Denying BA session request\n"); #endif - ret = -EINVAL; - goto unlock; + return -EINVAL; } spin_lock_bh(&sta->lock); spin_lock(&local->ampdu_lock); - sdata = sta->sdata; - /* we have tried too many times, receiver does not want A-MPDU */ if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) { ret = -EBUSY; @@ -310,8 +296,9 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid) start_seq_num = sta->tid_seq[tid]; - ret = drv_ampdu_action(local, IEEE80211_AMPDU_TX_START, - &sta->sta, tid, &start_seq_num); + ret = drv_ampdu_action(local, &sdata->vif, + IEEE80211_AMPDU_TX_START, + pubsta, tid, &start_seq_num); if (ret) { #ifdef CONFIG_MAC80211_HT_DEBUG @@ -336,7 +323,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid) sta->ampdu_mlme.dialog_token_allocator; sta->ampdu_mlme.tid_tx[tid]->ssn = start_seq_num; - ieee80211_send_addba_request(sta->sdata, ra, tid, + ieee80211_send_addba_request(sdata, pubsta->addr, tid, sta->ampdu_mlme.tid_tx[tid]->dialog_token, sta->ampdu_mlme.tid_tx[tid]->ssn, 0x40, 5000); @@ -348,7 +335,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid) #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid); #endif - goto unlock; + return 0; err_free: kfree(sta->ampdu_mlme.tid_tx[tid]); @@ -360,8 +347,6 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid) err_unlock_sta: spin_unlock(&local->ampdu_lock); spin_unlock_bh(&sta->lock); - unlock: - rcu_read_unlock(); return ret; } EXPORT_SYMBOL(ieee80211_start_tx_ba_session); @@ -428,13 +413,15 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local, ieee80211_agg_splice_finish(local, sta, tid); spin_unlock(&local->ampdu_lock); - drv_ampdu_action(local, IEEE80211_AMPDU_TX_OPERATIONAL, + drv_ampdu_action(local, &sta->sdata->vif, + IEEE80211_AMPDU_TX_OPERATIONAL, &sta->sta, tid, NULL); } -void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid) +void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid) { - struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; struct sta_info *sta; u8 *state; @@ -483,10 +470,11 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid) } EXPORT_SYMBOL(ieee80211_start_tx_ba_cb); -void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, +void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_vif *vif, const u8 *ra, u16 tid) { - struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; struct ieee80211_ra_tid *ra_tid; struct sk_buff *skb = dev_alloc_skb(0); @@ -535,13 +523,12 @@ int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, return ret; } -int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw, - u8 *ra, u16 tid, +int ieee80211_stop_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, enum ieee80211_back_parties initiator) { - struct ieee80211_local *local = hw_to_local(hw); - struct sta_info *sta; - int ret = 0; + struct sta_info *sta = container_of(pubsta, struct sta_info, sta); + struct ieee80211_sub_if_data *sdata = sta->sdata; + struct ieee80211_local *local = sdata->local; if (WARN_ON(!local->ops->ampdu_action)) return -EINVAL; @@ -549,22 +536,14 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw, if (tid >= STA_TID_NUM) return -EINVAL; - rcu_read_lock(); - sta = sta_info_get(local, ra); - if (!sta) { - rcu_read_unlock(); - return -ENOENT; - } - - ret = __ieee80211_stop_tx_ba_session(sta, tid, initiator); - rcu_read_unlock(); - return ret; + return __ieee80211_stop_tx_ba_session(sta, tid, initiator); } EXPORT_SYMBOL(ieee80211_stop_tx_ba_session); -void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid) +void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid) { - struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; struct sta_info *sta; u8 *state; @@ -627,10 +606,11 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid) } EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb); -void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, +void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_vif *vif, const u8 *ra, u16 tid) { - struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; struct ieee80211_ra_tid *ra_tid; struct sk_buff *skb = dev_alloc_skb(0); diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 020a94a31106..921dd9c9ff62 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -239,15 +239,16 @@ static inline int drv_tx_last_beacon(struct ieee80211_local *local) } static inline int drv_ampdu_action(struct ieee80211_local *local, + struct ieee80211_vif *vif, enum ieee80211_ampdu_mlme_action action, struct ieee80211_sta *sta, u16 tid, u16 *ssn) { int ret = -EOPNOTSUPP; if (local->ops->ampdu_action) - ret = local->ops->ampdu_action(&local->hw, action, + ret = local->ops->ampdu_action(&local->hw, vif, action, sta, tid, ssn); - trace_drv_ampdu_action(local, action, sta, tid, ssn, ret); + trace_drv_ampdu_action(local, vif, action, sta, tid, ssn, ret); return ret; } diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h index 37b9051afcf3..b8fef1d11369 100644 --- a/net/mac80211/driver-trace.h +++ b/net/mac80211/driver-trace.h @@ -634,11 +634,12 @@ TRACE_EVENT(drv_tx_last_beacon, TRACE_EVENT(drv_ampdu_action, TP_PROTO(struct ieee80211_local *local, + struct ieee80211_vif *vif, enum ieee80211_ampdu_mlme_action action, struct ieee80211_sta *sta, u16 tid, u16 *ssn, int ret), - TP_ARGS(local, action, sta, tid, ssn, ret), + TP_ARGS(local, vif, action, sta, tid, ssn, ret), TP_STRUCT__entry( LOCAL_ENTRY @@ -647,10 +648,12 @@ TRACE_EVENT(drv_ampdu_action, __field(u16, tid) __field(u16, ssn) __field(int, ret) + VIF_ENTRY ), TP_fast_assign( LOCAL_ASSIGN; + VIF_ASSIGN; STA_ASSIGN; __entry->ret = ret; __entry->action = action; @@ -659,8 +662,8 @@ TRACE_EVENT(drv_ampdu_action, ), TP_printk( - LOCAL_PR_FMT STA_PR_FMT " action:%d tid:%d ret:%d", - LOCAL_PR_ARG, STA_PR_ARG, __entry->action, __entry->tid, __entry->ret + LOCAL_PR_FMT VIF_PR_FMT STA_PR_FMT " action:%d tid:%d ret:%d", + LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG, __entry->action, __entry->tid, __entry->ret ) ); #endif /* !__MAC80211_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */ diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 48ef1a282b91..345c8ee50175 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -141,7 +141,6 @@ void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, struct sta_info *sta, struct ieee80211_mgmt *mgmt, size_t len) { - struct ieee80211_local *local = sdata->local; u16 tid, params; u16 initiator; @@ -164,7 +163,7 @@ void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, sta->ampdu_mlme.tid_state_tx[tid] = HT_AGG_STATE_OPERATIONAL; spin_unlock_bh(&sta->lock); - ieee80211_stop_tx_ba_session(&local->hw, sta->sta.addr, tid, + ieee80211_stop_tx_ba_session(&sta->sta, tid, WLAN_BACK_RECIPIENT); } } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index b63b99fb2fd3..b7598db5ade2 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -771,8 +771,9 @@ IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) return netdev_priv(dev); } -/* this struct represents 802.11n's RA/TID combination */ +/* this struct represents 802.11n's RA/TID combination along with our vif */ struct ieee80211_ra_tid { + struct ieee80211_vif *vif; u8 ra[ETH_ALEN]; u16 tid; }; diff --git a/net/mac80211/main.c b/net/mac80211/main.c index c74a6a1935b3..f4be97c3b747 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -296,14 +296,14 @@ static void ieee80211_tasklet_handler(unsigned long data) break; case IEEE80211_DELBA_MSG: ra_tid = (struct ieee80211_ra_tid *) &skb->cb; - ieee80211_stop_tx_ba_cb(local_to_hw(local), - ra_tid->ra, ra_tid->tid); + ieee80211_stop_tx_ba_cb(ra_tid->vif, ra_tid->ra, + ra_tid->tid); dev_kfree_skb(skb); break; case IEEE80211_ADDBA_MSG: ra_tid = (struct ieee80211_ra_tid *) &skb->cb; - ieee80211_start_tx_ba_cb(local_to_hw(local), - ra_tid->ra, ra_tid->tid); + ieee80211_start_tx_ba_cb(ra_tid->vif, ra_tid->ra, + ra_tid->tid); dev_kfree_skb(skb); break ; default: -- cgit v1.2.3-59-g8ed1b