diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2015-03-21 17:25:43 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2015-04-22 11:02:25 +0300 |
| commit | 17c18bf880b2464851e5a2bca86521affc46c97e (patch) | |
| tree | 3b200b80b2f494fe2084472204a93c4c51bc55b0 /include/net/mac80211.h | |
| parent | a839e463e84a02c0ea65ff61504b56a83e193078 (diff) | |
| download | linux-17c18bf880b2464851e5a2bca86521affc46c97e.tar.xz | |
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 'include/net/mac80211.h')
| -rw-r--r-- | include/net/mac80211.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 38a5fd790366..9001bd685b1e 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1796,6 +1796,10 @@ struct ieee80211_txq { * the driver returns 1. This also forces the driver to advertise its * supported cipher suites. * + * @IEEE80211_HW_SUPPORT_FAST_XMIT: The driver/hardware supports fast-xmit, + * this currently requires only the ability to calculate the duration + * for frames. + * * @IEEE80211_HW_QUEUE_CONTROL: The driver wants to control per-interface * queue mapping in order to use different queues (not just one per AC) * for different virtual interfaces. See the doc section on HW queue @@ -1844,7 +1848,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_WANT_MONITOR_VIF = 1<<14, IEEE80211_HW_NO_AUTO_VIF = 1<<15, IEEE80211_HW_SW_CRYPTO_CONTROL = 1<<16, - /* free slots */ + IEEE80211_HW_SUPPORT_FAST_XMIT = 1<<17, IEEE80211_HW_REPORTS_TX_ACK_STATUS = 1<<18, IEEE80211_HW_CONNECTION_MONITOR = 1<<19, IEEE80211_HW_QUEUE_CONTROL = 1<<20, |