diff options
| 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/ieee80211_i.h | |
| 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/ieee80211_i.h')
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 634603320374..6f8375f1df88 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -30,6 +30,7 @@ #include <net/ieee80211_radiotap.h> #include <net/cfg80211.h> #include <net/mac80211.h> +#include <net/fq.h> #include "key.h" #include "sta_info.h" #include "debug.h" @@ -805,10 +806,17 @@ enum txq_info_flags { IEEE80211_TXQ_NO_AMSDU, }; +/** + * struct txq_info - per tid queue + * + * @tin: contains packets split into multiple flows + * @def_flow: used as a fallback flow when a packet destined to @tin hashes to + * a fq_flow which is already owned by a different tin + */ struct txq_info { - struct sk_buff_head queue; + struct fq_tin tin; + struct fq_flow def_flow; unsigned long flags; - unsigned long byte_cnt; /* keep last! */ struct ieee80211_txq txq; @@ -1099,6 +1107,8 @@ struct ieee80211_local { * it first anyway so they become a no-op */ struct ieee80211_hw hw; + struct fq fq; + const struct ieee80211_ops *ops; /* @@ -1931,9 +1941,13 @@ static inline bool ieee80211_can_run_worker(struct ieee80211_local *local) return true; } -void ieee80211_init_tx_queue(struct ieee80211_sub_if_data *sdata, - struct sta_info *sta, - struct txq_info *txq, int tid); +int ieee80211_txq_setup_flows(struct ieee80211_local *local); +void ieee80211_txq_teardown_flows(struct ieee80211_local *local); +void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, + struct sta_info *sta, + struct txq_info *txq, int tid); +void ieee80211_txq_purge(struct ieee80211_local *local, + struct txq_info *txqi); void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, u16 transaction, u16 auth_alg, u16 status, const u8 *extra, size_t extra_len, const u8 *bssid, |