From: Adrian Chadd <adrian@freebsd.org>
To: 李刚 <gang.li@watchdata.com>
Cc: linux-wireless@vger.kernel.org,
Ath9k Devel List <ath9k-devel@lists.ath9k.org>
Subject: Re: Question: ieee80211_rx called twice after one ieee80211_subif_start_xmit call
Date: Fri, 30 Dec 2011 01:30:58 -0800 [thread overview]
Message-ID: <CAJ-VmomR_1iN5rryyvui6iQGuN+3aWAets5NQjx+sHpZe8ck0w@mail.gmail.com> (raw)
In-Reply-To: <20111230080554.DE64420052@mail.watchdata.com.cn>
2011/12/30 李刚 <gang.li@watchdata.com>:
> Hi sirs,
>
> Today, I noticed that when an data frame is sent by
> ieee80211_subif_start_xmit, then ieee80211_rx will be called twice , first
> is an Acknowledgement frame and second is the response data frame. Is this
> the normal case? It seems the RA frame is nonsense and just be freed in
> ieee80211_rx_monitor.
>
> Is there anyway to tell the hardware not report RA frame to
> mac80211?
.. its receiving ACKs? I thought it only did that when either promisc
or control was enabled. Try fiddling around with the RX filter bitmask
and see if you can determine (for your NIC :) which filter bit is
doing it.
Maybe the interface is in promisc mode in hostap mode and this is why
you're seeing ACKs.
Adrian
WARNING: multiple messages have this Message-ID (diff)
From: Adrian Chadd <adrian@freebsd.org>
To: ath9k-devel@lists.ath9k.org
Subject: [ath9k-devel] Question: ieee80211_rx called twice after one ieee80211_subif_start_xmit call
Date: Fri, 30 Dec 2011 01:30:58 -0800 [thread overview]
Message-ID: <CAJ-VmomR_1iN5rryyvui6iQGuN+3aWAets5NQjx+sHpZe8ck0w@mail.gmail.com> (raw)
In-Reply-To: <20111230080554.DE64420052@mail.watchdata.com.cn>
2011/12/30 ?? <gang.li@watchdata.com>:
> Hi sirs,
>
> Today, I noticed that when an data frame is sent by
> ieee80211_subif_start_xmit, then ieee80211_rx will be called twice , first
> is an Acknowledgement frame and second is the response data frame. Is this
> the normal case? It seems the RA frame is nonsense and just be freed in
> ieee80211_rx_monitor.
>
> Is there anyway to tell the hardware not report RA frame to
> mac80211?
.. its receiving ACKs? I thought it only did that when either promisc
or control was enabled. Try fiddling around with the RX filter bitmask
and see if you can determine (for your NIC :) which filter bit is
doing it.
Maybe the interface is in promisc mode in hostap mode and this is why
you're seeing ACKs.
Adrian
next prev parent reply other threads:[~2011-12-30 9:30 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-17 23:18 Question about TCP Checksum errors Larry Finger
2011-12-17 23:43 ` Eric Dumazet
2011-12-19 11:38 ` Question about IEEE80211_TX_CTL_NO_ACK in ath_9k 李刚
2011-12-19 12:33 ` Mohammed Shafi
2011-12-19 13:03 ` 李刚
2011-12-19 12:33 ` Daniel Smith
2011-12-19 13:00 ` 李刚
2011-12-19 13:43 ` Daniel Smith
2011-12-19 13:43 ` [ath9k-devel] " Daniel Smith
2011-12-30 8:15 ` Question: ieee80211_rx called twice after one ieee80211_subif_start_xmit call 李刚
2011-12-30 8:15 ` [ath9k-devel] " 李刚
2011-12-30 9:30 ` Adrian Chadd [this message]
2011-12-30 9:30 ` Adrian Chadd
2011-12-30 11:13 ` [ath9k-devel] 答复: " 李刚
2012-01-07 2:11 ` Question about duration of data frame in ath9k_htc 李刚
2012-01-07 2:11 ` [ath9k-devel] " 李刚
2012-01-07 5:31 ` Sujith Manoharan
2012-01-07 5:31 ` [ath9k-devel] " Sujith Manoharan
2011-12-19 13:07 ` Question about IEEE80211_TX_CTL_NO_ACK in ath_9k Helmut Schaa
2011-12-19 14:42 ` Sujith
2011-12-20 5:39 ` 李刚
2011-12-20 15:24 ` Sujith
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