diff options
| -rw-r--r-- | net/mac80211/tx.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index e8c9964..378a7a6 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1433,6 +1433,8 @@ int ieee80211_txq_setup_flows(struct ieee80211_local *local) struct fq *fq = &local->fq; int ret; int i; + bool supp_vht = false; + enum nl80211_band band; if (!local->ops->wake_tx_queue) return 0; @@ -1441,6 +1443,23 @@ int ieee80211_txq_setup_flows(struct ieee80211_local *local) if (ret) return ret; + /* + * If the hardware doesn't support VHT, it is safe to limit the maximum + * queue size. 4 Mbytes is 64 max-size aggregates in 802.11n. + */ + for (band = 0; band < NUM_NL80211_BANDS; band++) { + struct ieee80211_supported_band *sband; + + sband = local->hw.wiphy->bands[band]; + if (!sband) + continue; + + supp_vht = supp_vht || sband->vht_cap.vht_supported; + } + + if (!supp_vht) + fq->memory_limit = 4 << 20; /* 4 Mbytes */ + codel_params_init(&local->cparams); local->cparams.interval = MS2TIME(100); local->cparams.target = MS2TIME(20); |
