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| author | Michal Kazior <michal.kazior@tieto.com> | 2016-05-19 10:37:49 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-06-09 11:34:08 +0200 |
| commit | fa962b92120bb70693a4db545f89067eb3373294 (patch) | |
| tree | c8e159c99501f312756ad295088c884ef2a2361c /net/mac80211/main.c | |
| parent | 80a83cfc434b1e3afe38974570b460db4898bec6 (diff) | |
| download | linux-fa962b92120bb70693a4db545f89067eb3373294.tar.gz linux-fa962b92120bb70693a4db545f89067eb3373294.tar.bz2 linux-fa962b92120bb70693a4db545f89067eb3373294.zip | |
mac80211: implement fair queueing per txq
mac80211's software queues were designed to work
very closely with device tx queues. They are
required to make use of 802.11 packet aggregation
easily and efficiently.
Due to the way 802.11 aggregation is designed it
only makes sense to keep fair queuing as close to
hardware as possible to reduce induced latency and
inertia and provide the best flow responsiveness.
This change doesn't translate directly to
immediate and significant gains. End result
depends on driver's induced latency. Best results
can be achieved if driver keeps its own tx
queue/fifo fill level to a minimum.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/main.c')
| -rw-r--r-- | net/mac80211/main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 160ac6b8b9a1..d00ea9b13f49 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -1086,6 +1086,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) rtnl_unlock(); + result = ieee80211_txq_setup_flows(local); + if (result) + goto fail_flows; + #ifdef CONFIG_INET local->ifa_notifier.notifier_call = ieee80211_ifa_changed; result = register_inetaddr_notifier(&local->ifa_notifier); @@ -1111,6 +1115,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) #if defined(CONFIG_INET) || defined(CONFIG_IPV6) fail_ifa: #endif + ieee80211_txq_teardown_flows(local); + fail_flows: rtnl_lock(); rate_control_deinitialize(local); ieee80211_remove_interfaces(local); @@ -1169,6 +1175,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) skb_queue_purge(&local->skb_queue); skb_queue_purge(&local->skb_queue_unreliable); skb_queue_purge(&local->skb_queue_tdls_chsw); + ieee80211_txq_teardown_flows(local); destroy_workqueue(local->workqueue); wiphy_unregister(local->hw.wiphy); |