From b2abb6e2bcb91ae384c5857dffd0bb97b76c7a68 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 19 Jul 2011 10:39:53 +0200 Subject: mac80211: sync driver before TX In P2P client mode, the GO (AP) to connect to might have periods of time where it is not available due to powersave. To allow the driver to sync with it and send frames to the GO only when it is available add a new callback tx_sync (and the corresponding finish_tx_sync). These callbacks can sleep unlike the actual TX. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/work.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'net/mac80211/work.c') diff --git a/net/mac80211/work.c b/net/mac80211/work.c index f0c74a1a9a02..380b9a7462b6 100644 --- a/net/mac80211/work.c +++ b/net/mac80211/work.c @@ -25,6 +25,7 @@ #include "ieee80211_i.h" #include "rate.h" +#include "driver-ops.h" #define IEEE80211_AUTH_TIMEOUT (HZ / 5) #define IEEE80211_AUTH_MAX_TRIES 3 @@ -427,6 +428,14 @@ ieee80211_direct_probe(struct ieee80211_work *wk) struct ieee80211_sub_if_data *sdata = wk->sdata; struct ieee80211_local *local = sdata->local; + if (!wk->probe_auth.synced) { + int ret = drv_tx_sync(local, sdata, wk->filter_ta, + IEEE80211_TX_SYNC_AUTH); + if (ret) + return WORK_ACT_TIMEOUT; + } + wk->probe_auth.synced = true; + wk->probe_auth.tries++; if (wk->probe_auth.tries > IEEE80211_AUTH_MAX_TRIES) { printk(KERN_DEBUG "%s: direct probe to %pM timed out\n", @@ -466,6 +475,14 @@ ieee80211_authenticate(struct ieee80211_work *wk) struct ieee80211_sub_if_data *sdata = wk->sdata; struct ieee80211_local *local = sdata->local; + if (!wk->probe_auth.synced) { + int ret = drv_tx_sync(local, sdata, wk->filter_ta, + IEEE80211_TX_SYNC_AUTH); + if (ret) + return WORK_ACT_TIMEOUT; + } + wk->probe_auth.synced = true; + wk->probe_auth.tries++; if (wk->probe_auth.tries > IEEE80211_AUTH_MAX_TRIES) { printk(KERN_DEBUG "%s: authentication with %pM" @@ -499,6 +516,14 @@ ieee80211_associate(struct ieee80211_work *wk) struct ieee80211_sub_if_data *sdata = wk->sdata; struct ieee80211_local *local = sdata->local; + if (!wk->assoc.synced) { + int ret = drv_tx_sync(local, sdata, wk->filter_ta, + IEEE80211_TX_SYNC_ASSOC); + if (ret) + return WORK_ACT_TIMEOUT; + } + wk->assoc.synced = true; + wk->assoc.tries++; if (wk->assoc.tries > IEEE80211_ASSOC_MAX_TRIES) { printk(KERN_DEBUG "%s: association with %pM" -- cgit v1.2.3