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authorSara Sharon <sarasharon1@gmail.com>2015-12-30 17:06:04 +0300
committerJohannes Berg <johannes.berg@intel.com>2016-01-14 13:13:17 +0300
commit50ea05efaf3bed7dd34bcc2635a8b3f53bd0ccc1 (patch)
treedb757aea54659c74f10376ade43d41b3f626a4ca /net/mac80211/agg-tx.c
parenta85a7e28f45f7217b9a2efc3ba323de5c0e5b056 (diff)
downloadlinux-50ea05efaf3bed7dd34bcc2635a8b3f53bd0ccc1.tar.xz
mac80211: pass block ack session timeout to to driver
Currently mac80211 does not inform the driver of the session block ack timeout when starting a rx aggregation session. Drivers that manage the reorder buffer need to know this parameter. Seeing that there are now too many arguments for the drv_ampdu_action() function, wrap them inside a structure. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/agg-tx.c')
-rw-r--r--net/mac80211/agg-tx.c53
1 files changed, 35 insertions, 18 deletions
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index ff757181b0a8..4932e9f243a2 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -7,6 +7,7 @@
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2007, Michael Wu <flamingice@sourmilk.net>
* Copyright 2007-2010, Intel Corporation
+ * Copyright(c) 2015 Intel Deutschland GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -295,7 +296,14 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
{
struct ieee80211_local *local = sta->local;
struct tid_ampdu_tx *tid_tx;
- enum ieee80211_ampdu_mlme_action action;
+ struct ieee80211_ampdu_params params = {
+ .sta = &sta->sta,
+ .tid = tid,
+ .buf_size = 0,
+ .amsdu = false,
+ .timeout = 0,
+ .ssn = 0,
+ };
int ret;
lockdep_assert_held(&sta->ampdu_mlme.mtx);
@@ -304,10 +312,10 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
case AGG_STOP_DECLINED:
case AGG_STOP_LOCAL_REQUEST:
case AGG_STOP_PEER_REQUEST:
- action = IEEE80211_AMPDU_TX_STOP_CONT;
+ params.action = IEEE80211_AMPDU_TX_STOP_CONT;
break;
case AGG_STOP_DESTROY_STA:
- action = IEEE80211_AMPDU_TX_STOP_FLUSH;
+ params.action = IEEE80211_AMPDU_TX_STOP_FLUSH;
break;
default:
WARN_ON_ONCE(1);
@@ -330,9 +338,8 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
spin_unlock_bh(&sta->lock);
if (reason != AGG_STOP_DESTROY_STA)
return -EALREADY;
- ret = drv_ampdu_action(local, sta->sdata,
- IEEE80211_AMPDU_TX_STOP_FLUSH_CONT,
- &sta->sta, tid, NULL, 0, false);
+ params.action = IEEE80211_AMPDU_TX_STOP_FLUSH_CONT;
+ ret = drv_ampdu_action(local, sta->sdata, &params);
WARN_ON_ONCE(ret);
return 0;
}
@@ -381,8 +388,7 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
WLAN_BACK_INITIATOR;
tid_tx->tx_stop = reason == AGG_STOP_LOCAL_REQUEST;
- ret = drv_ampdu_action(local, sta->sdata, action,
- &sta->sta, tid, NULL, 0, false);
+ ret = drv_ampdu_action(local, sta->sdata, &params);
/* HW shall not deny going back to legacy */
if (WARN_ON(ret)) {
@@ -445,7 +451,14 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
struct tid_ampdu_tx *tid_tx;
struct ieee80211_local *local = sta->local;
struct ieee80211_sub_if_data *sdata = sta->sdata;
- u16 start_seq_num;
+ struct ieee80211_ampdu_params params = {
+ .sta = &sta->sta,
+ .action = IEEE80211_AMPDU_TX_START,
+ .tid = tid,
+ .buf_size = 0,
+ .amsdu = false,
+ .timeout = 0,
+ };
int ret;
tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
@@ -467,10 +480,8 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
*/
synchronize_net();
- start_seq_num = sta->tid_seq[tid] >> 4;
-
- ret = drv_ampdu_action(local, sdata, IEEE80211_AMPDU_TX_START,
- &sta->sta, tid, &start_seq_num, 0, false);
+ params.ssn = sta->tid_seq[tid] >> 4;
+ ret = drv_ampdu_action(local, sdata, &params);
if (ret) {
ht_dbg(sdata,
"BA request denied - HW unavailable for %pM tid %d\n",
@@ -499,7 +510,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
/* send AddBA request */
ieee80211_send_addba_request(sdata, sta->sta.addr, tid,
- tid_tx->dialog_token, start_seq_num,
+ tid_tx->dialog_token, params.ssn,
IEEE80211_MAX_AMPDU_BUF,
tid_tx->timeout);
}
@@ -684,18 +695,24 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
struct sta_info *sta, u16 tid)
{
struct tid_ampdu_tx *tid_tx;
+ struct ieee80211_ampdu_params params = {
+ .sta = &sta->sta,
+ .action = IEEE80211_AMPDU_TX_OPERATIONAL,
+ .tid = tid,
+ .timeout = 0,
+ .ssn = 0,
+ };
lockdep_assert_held(&sta->ampdu_mlme.mtx);
tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
+ params.buf_size = tid_tx->buf_size;
+ params.amsdu = tid_tx->amsdu;
ht_dbg(sta->sdata, "Aggregation is on for %pM tid %d\n",
sta->sta.addr, tid);
- drv_ampdu_action(local, sta->sdata,
- IEEE80211_AMPDU_TX_OPERATIONAL,
- &sta->sta, tid, NULL, tid_tx->buf_size,
- tid_tx->amsdu);
+ drv_ampdu_action(local, sta->sdata, &params);
/*
* synchronize with TX path, while splicing the TX path