diff options
| author |   Assaf Krauss <assaf.krauss@intel.com> | 2008-09-03 11:18:42 +0800 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2008-09-03 15:10:36 -0400 |
| commit | b94d8eea44df985ea22b1f51e402b4bbfdd6d793 (patch) | |
| tree | d4817faa5c4ced338a7f52ccdf276178732e13a2 /drivers/net/wireless/iwlwifi/iwl-rx.c | |
| parent | ipsec: Fix deadlock in xfrm_state management. (diff) | |
| download | linux-dev-b94d8eea44df985ea22b1f51e402b4bbfdd6d793.tar.xz linux-dev-b94d8eea44df985ea22b1f51e402b4bbfdd6d793.zip | |
iwlwifi: W/A for the TSF correction in IBSS
This patch is a W/A for the TSF sync issue in IBSS merging. HW is not
capable to sync TSF (it's constantly little behind). This creates
constant IBSS merging upon reception of each beacon, adding and removing
station which in turn creates above 50% packet loss and thus dramatically
degrade the throughput. The W/A simply stops the driver from declaring it
has a reliable TSF value and thus eliminates IBSS merging.
Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-rx.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c index f3f6ea49fdd2..e81bfc42a7cb 100644 --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -1173,7 +1173,10 @@ void iwl_rx_reply_rx(struct iwl_priv *priv, rx_status.antenna = 0; rx_status.flag = 0; - rx_status.flag |= RX_FLAG_TSFT; + + /* TSF isn't reliable. In order to allow smooth user experience, + * this W/A doesn't propagate it to the mac80211 */ + /*rx_status.flag |= RX_FLAG_TSFT;*/ if ((unlikely(rx_start->cfg_phy_cnt > 20))) { IWL_DEBUG_DROP("dsp size out of range [0,20]: %d/n", |