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Subject: iwlwifi and tx info in skb->cb
From: Johannes Berg <johannes@sipsolutions.net>
To: Tomas Winkler <tomasw@gmail.com>
Cc: Ron Rindjunsky <ron.rindjunsky@intel.com>,
	linux-wireless <linux-wireless@vger.kernel.org>
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Date: Thu, 08 May 2008 00:01:50 +0200
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Hi,

I was just trying to make iwlwifi work again with tx info in skb->cb,
but am running into something I don't understand:

What is a TFD, and why can it have multiple SKBs with a single tx
status? I'm referring to:

/* One for each TFD */
struct iwl3945_tx_info {
	struct ieee80211_tx_status status;
	struct sk_buff *skb[MAX_NUM_OF_TBS];
};

I would have expected something like this with 4965 that has aggregation
support (and aggregation is reported just once) but here? Confused.

johannes

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