| commit | be03d4a45c09ee5100d3aaaedd087f19bc20d01f | [log] [tgz] |
|---|---|---|
| author | Andreas Hartmann <andihartmann@01019freenet.de> | Tue Apr 17 00:25:28 2012 +0200 |
| committer | John W. Linville <linville@tuxdriver.com> | Tue Apr 17 14:57:13 2012 -0400 |
| tree | 46ad26ce2561b025adebc8170f6e05ef67f30b89 | |
| parent | 8edb254c8c08dc2e6cb60e30da00a49f8b102c43 [diff] |
rt2x00: Don't let mac80211 send a BAR when an AMPDU subframe fails There are connection stalls or very poor throughputs with rt2800 hardware using 802.11n in AP mode since patch "mac80211: retry sending failed BAR frames later instead of tearing down aggr"[1][2]. Since rt2800 hardware is not able to correctly report the tx status of BAR frames, this patch removes as workaround the existing error handling on AP side, which lets mac80211 send a BAR when an AMPDU subframe fails. As a result, most wifi clients (aside from Intel STAs on Windows) instead will timeout now the reorder buffer and request the lost frame again. The correct solution would be, to tear down BA session on AP side. This patch was born on the basis of "[RFT] rt2x00: Tear down BA session on QoS frame failure"[3]. Thanks to Helmut Schaa for his support! [1] http://thread.gmane.org/gmane.linux.kernel.wireless.general/83297/focus=83304 [2] http://git.kernel.org/?p=linux/kernel/git/linville/wireless-testing.git;a=commit;h=f0425beda4d404a6e751439b562100b902ba9c98 [3] http://thread.gmane.org/gmane.linux.drivers.rt2x00.user/569 Signed-off-by: Andreas Hartmann <andihartmann@01019freenet.de> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>