diff options
| author | Stone Piao <piaoyun@marvell.com> | 2012-06-21 07:21:10 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-06-22 21:59:49 +0400 |
| commit | 925839243dc9aa4ef25305f5afd10ed18258a4ac (patch) | |
| tree | 75c6750c9a7917b42f9d20a56a628b20087e25b9 /drivers/net/wireless/mwifiex/wmm.c | |
| parent | 8d6fcbdb4e039544e3f60a909a0cd819f3f68ad9 (diff) | |
| download | linux-925839243dc9aa4ef25305f5afd10ed18258a4ac.tar.xz | |
mwifiex: fix 11n rx packet drop issue
Currently we check the sequence number of last packet received
against start_win. If a sequence hole is detected, start_win is
updated to next sequence number.
Since the rx sequence number is initialized to 0, a corner case
exists when BA setup happens immediately after association. As
0 is a valid sequence number, start_win gets increased to 1
incorrectly. This causes the first packet with sequence number 0
being dropped.
Initialize rx sequence number as 0xffff and skip adjusting
start_win if the sequence number remains 0xffff. The sequence
number will be updated once the first packet is received.
Cc: "3.0.y, 3.1.y, 3.2.y, 3.3.y, 3.4.y" <stable@vger.kernel.org>
Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mwifiex/wmm.c')
| -rw-r--r-- | drivers/net/wireless/mwifiex/wmm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index f3fc65515857..8c2b5c0aa754 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -404,6 +404,8 @@ mwifiex_wmm_init(struct mwifiex_adapter *adapter) priv->add_ba_param.tx_win_size = MWIFIEX_AMPDU_DEF_TXWINSIZE; priv->add_ba_param.rx_win_size = MWIFIEX_AMPDU_DEF_RXWINSIZE; + mwifiex_reset_11n_rx_seq_num(priv); + atomic_set(&priv->wmm.tx_pkts_queued, 0); atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); } |