diff options
| author | Mordechay Goodstein <mordechay.goodstein@intel.com> | 2020-03-26 16:09:38 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2020-04-24 13:33:43 +0300 |
| commit | 0c197f16f7bc5ddb43073690a80fb15998ad61e4 (patch) | |
| tree | 381ceb1b00f1bfc4bd1fd05f7d6bf4cb163fced8 /net/mac80211/agg-tx.c | |
| parent | 31d8bb4e07f80935ee9bf599a9d99de7ca90fc5a (diff) | |
| download | linux-0c197f16f7bc5ddb43073690a80fb15998ad61e4.tar.xz | |
mac80211: agg-tx: add an option to defer ADDBA transmit
Driver tells mac80211 to sends ADDBA with SSN (starting sequence number)
from the head of the queue, while the transmission of all the frames in the
queue may take a while, which causes the peer to time out. In order to
fix this scenario, add an option to defer ADDBA transmit until queue
is drained.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200326150855.0f27423fec75.If67daab123a27c1cbddef000d6a3f212aa6309ef@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/agg-tx.c')
| -rw-r--r-- | net/mac80211/agg-tx.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 32f40c4f3120..c2d5f512526d 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -483,6 +483,8 @@ static void ieee80211_send_addba_with_timeout(struct sta_info *sta, tid_tx->dialog_token, sta->tid_seq[tid] >> 4, buf_size, tid_tx->timeout); + + WARN_ON(test_and_set_bit(HT_AGG_STATE_SENT_ADDBA, &tid_tx->state)); } void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) @@ -521,7 +523,9 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) params.ssn = sta->tid_seq[tid] >> 4; ret = drv_ampdu_action(local, sdata, ¶ms); - if (ret == IEEE80211_AMPDU_TX_START_IMMEDIATE) { + if (ret == IEEE80211_AMPDU_TX_START_DELAY_ADDBA) { + return; + } else if (ret == IEEE80211_AMPDU_TX_START_IMMEDIATE) { /* * We didn't send the request yet, so don't need to check * here if we already got a response, just mark as driver @@ -765,6 +769,12 @@ void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, if (WARN_ON(test_and_set_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state))) return; + if (!test_bit(HT_AGG_STATE_SENT_ADDBA, &tid_tx->state)) { + ieee80211_send_addba_with_timeout(sta, tid_tx); + /* RESPONSE_RECEIVED state whould trigger the flow again */ + return; + } + if (test_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) ieee80211_agg_tx_operational(local, sta, tid); } |