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From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
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Message-ID: <20484.23881.582002.607413@gargle.gargle.HOWL> (sfid-20120716_202933_234471_ECB02D9D)
Date: Mon, 16 Jul 2012 23:58:25 +0530
To: Felix Fietkau <nbd@openwrt.org>
CC: Sujith Manoharan <c_manoha@qca.qualcomm.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
	"linville@tuxdriver.com" <linville@tuxdriver.com>,
	"Rodriguez, Luis" <rodrigue@qca.qualcomm.com>
Subject: Re: [PATCH v2 08/12] ath9k: fix aggregate size limit based on queue
 TXOP limit
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Felix Fietkau wrote:
> The standard does not say anything specifically about A-MPDU, but it
> does say this:
> 
> When the TXOP limit is nonzero, a STA shall fragment an individually
> addressed MSDU so that the transmission of the first MPDU of the TXOP
> does not cause the TXOP limit to be exceeded at the PHY rate selected
> for the initial transmission attempt of that MPDU. The TXOP limit may be
> exceeded, when using a lower PHY rate than selected for the initial
> transmission attempt of the first MPDU, for a retransmission of an MPDU,
> for the initial transmission of an MPDU if any previous MPDU in the
> current MSDU has been retransmitted, or for group addressed MSDUs. When
> the TXOP limit is exceeded due to the retransmission of an MPDU at a
> reduced PHY rate, the STA shall not transmit more than one MPDU in the TXOP.

Um, am not sure how this passage relates to number of subframe calculation in an
aggregate ?

Sujith