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| author |   Helmut Schaa <helmut.schaa@googlemail.com> | 2011-08-05 11:46:19 +0200 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2011-08-08 16:04:09 -0400 |
| commit | 39e68712d75700ec09770c7ad9e8e4abc65db7c6 (patch) | |
| tree | 3e325fcd59e99da67b9c92919515818461767c7f /net | |
| parent | mac80211: Stop TX BA session if buf_size is zero (diff) | |
| download | linux-dev-39e68712d75700ec09770c7ad9e8e4abc65db7c6.tar.xz linux-dev-39e68712d75700ec09770c7ad9e8e4abc65db7c6.zip | |
mac80211: Don't use a buf_size=0 in ADDBA requests
According to 802.11-2007, 7.3.1.14 it is compliant to use a buf_size of
0 in ADDBA requests. But some devices (AVM Fritz Stick N) arn't able to
handle that correctly and will reply with an ADDBA reponse with a
buf_size of 0 which in turn will disallow BA sessions for these
devices.
To work around this problem, initialize hw.max_tx_aggregation_subframes
to the maximum AMPDU buffer size 0x40.
Using 0 as default for the bufsize was introduced in commit
5dd36bc933e8be84f8369ac64505a2938f9ce036 (mac80211: allow advertising
correct maximum aggregate size).
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/main.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 866f269183cf..104fdd9862bd 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -608,6 +608,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->hw.max_rates = 1; local->hw.max_report_rates = 0; local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; + local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; local->user_power_level = -1; |