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| author | Johannes Berg <johannes.berg@intel.com> | 2015-03-21 15:25:43 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2015-04-22 10:02:25 +0200 |
| commit | 17c18bf880b2464851e5a2bca86521affc46c97e (patch) | |
| tree | 3b200b80b2f494fe2084472204a93c4c51bc55b0 /net/mac80211/chan.c | |
| parent | a839e463e84a02c0ea65ff61504b56a83e193078 (diff) | |
| download | linux-stable-17c18bf880b2464851e5a2bca86521affc46c97e.tar.gz linux-stable-17c18bf880b2464851e5a2bca86521affc46c97e.tar.bz2 linux-stable-17c18bf880b2464851e5a2bca86521affc46c97e.zip | |
mac80211: add TX fastpath
In order to speed up mac80211's TX path, add the "fast-xmit" cache
that will cache the data frame 802.11 header and other data to be
able to build the frame more quickly. This cache is rebuilt when
external triggers imply changes, but a lot of the checks done per
packet today are simplified away to the check for the cache.
There's also a more detailed description in the code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/chan.c')
| -rw-r--r-- | net/mac80211/chan.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 5bcd4e5589d3..7e9b62475400 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -664,6 +664,8 @@ out: ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IDLE); + ieee80211_check_fast_xmit_iface(sdata); + return ret; } @@ -1030,6 +1032,8 @@ ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata) if (sdata->vif.type == NL80211_IFTYPE_AP) __ieee80211_vif_copy_chanctx_to_vlans(sdata, false); + ieee80211_check_fast_xmit_iface(sdata); + if (ieee80211_chanctx_refcount(local, old_ctx) == 0) ieee80211_free_chanctx(local, old_ctx); @@ -1376,6 +1380,8 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local) __ieee80211_vif_copy_chanctx_to_vlans(sdata, false); + ieee80211_check_fast_xmit_iface(sdata); + sdata->radar_required = sdata->reserved_radar_required; if (sdata->vif.bss_conf.chandef.width != |