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correct CTS duration calculation; SIFS+ACK should use the xmit rate not

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the rate for CTS

MFC after:	3 days
Obtained from:	Atheros
This commit is contained in:
sam 2005-08-12 23:11:44 +00:00
parent 44f0d8ab4f
commit c7715b87d6
1 changed files with 2 additions and 2 deletions
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4
sys/dev/ath/if_ath.c
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@ -3425,14 +3425,14 @@ ath_tx_start(struct ath_softc *sc, struct ieee80211_node *ni, struct ath_buf *bf
ctsduration += ath_hal_computetxtime(ah,
rt, pktlen, rix, AH_TRUE);
if ((flags & HAL_TXDESC_NOACK) == 0) /* SIFS + ACK */
ctsduration += rt->info[cix].spAckDuration;
ctsduration += rt->info[rix].spAckDuration;
} else {
if (flags & HAL_TXDESC_RTSENA) /* SIFS + CTS */
ctsduration += rt->info[cix].lpAckDuration;
ctsduration += ath_hal_computetxtime(ah,
rt, pktlen, rix, AH_FALSE);
if ((flags & HAL_TXDESC_NOACK) == 0) /* SIFS + ACK */
ctsduration += rt->info[cix].lpAckDuration;
ctsduration += rt->info[rix].lpAckDuration;
}
/*
* Must disable multi-rate retry when using RTS/CTS.