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925839243d
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>
73 lines
2.6 KiB
C
73 lines
2.6 KiB
C
/*
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* Marvell Wireless LAN device driver: 802.11n RX Re-ordering
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*
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* Copyright (C) 2011, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*/
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#ifndef _MWIFIEX_11N_RXREORDER_H_
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#define _MWIFIEX_11N_RXREORDER_H_
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#define MIN_FLUSH_TIMER_MS 50
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#define PKT_TYPE_BAR 0xE7
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#define MAX_TID_VALUE (2 << 11)
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#define TWOPOW11 (2 << 10)
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#define BLOCKACKPARAM_TID_POS 2
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#define BLOCKACKPARAM_AMSDU_SUPP_MASK 0x1
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#define BLOCKACKPARAM_WINSIZE_POS 6
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#define DELBA_TID_POS 12
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#define DELBA_INITIATOR_POS 11
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#define TYPE_DELBA_SENT 1
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#define TYPE_DELBA_RECEIVE 2
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#define IMMEDIATE_BLOCK_ACK 0x2
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#define ADDBA_RSP_STATUS_ACCEPT 0
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#define MWIFIEX_DEF_11N_RX_SEQ_NUM 0xffff
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static inline void mwifiex_reset_11n_rx_seq_num(struct mwifiex_private *priv)
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{
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memset(priv->rx_seq, 0xff, sizeof(priv->rx_seq));
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}
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int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *,
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u16 seqNum,
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u16 tid, u8 *ta,
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u8 pkttype, void *payload);
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void mwifiex_del_ba_tbl(struct mwifiex_private *priv, int Tid,
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u8 *PeerMACAddr, u8 type, int initiator);
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void mwifiex_11n_ba_stream_timeout(struct mwifiex_private *priv,
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struct host_cmd_ds_11n_batimeout *event);
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int mwifiex_ret_11n_addba_resp(struct mwifiex_private *priv,
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struct host_cmd_ds_command
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*resp);
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int mwifiex_cmd_11n_delba(struct host_cmd_ds_command *cmd,
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void *data_buf);
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int mwifiex_cmd_11n_addba_rsp_gen(struct mwifiex_private *priv,
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struct host_cmd_ds_command *cmd,
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struct host_cmd_ds_11n_addba_req
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*cmd_addba_req);
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int mwifiex_cmd_11n_addba_req(struct host_cmd_ds_command *cmd,
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void *data_buf);
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void mwifiex_11n_cleanup_reorder_tbl(struct mwifiex_private *priv);
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struct mwifiex_rx_reorder_tbl *mwifiex_11n_get_rxreorder_tbl(struct
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mwifiex_private
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*priv, int tid,
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u8 *ta);
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#endif /* _MWIFIEX_11N_RXREORDER_H_ */
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