diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/ic/rt2560.c | 14 | ||||
| -rw-r--r-- | sys/dev/ic/rt2661.c | 14 |
2 files changed, 16 insertions, 12 deletions
diff --git a/sys/dev/ic/rt2560.c b/sys/dev/ic/rt2560.c index e1577516ae2..889018ae38a 100644 --- a/sys/dev/ic/rt2560.c +++ b/sys/dev/ic/rt2560.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rt2560.c,v 1.19 2006/06/14 19:31:47 damien Exp $ */ +/* $OpenBSD: rt2560.c,v 1.20 2006/06/18 12:32:46 damien Exp $ */ /*- * Copyright (c) 2005, 2006 @@ -1778,6 +1778,13 @@ rt2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0, wh = mtod(m0, struct ieee80211_frame *); } + /* + * Packet Bursting: backoff after ppb=8 frames to give other STAs a + * chance to contend for the wireless medium. + */ + if (ic->ic_opmode == IEEE80211_M_STA && (ni->ni_txseq & 7)) + flags |= RT2560_TX_IFS_SIFS; + /*- * IEEE Std 802.11-1999, pp 82: "A STA shall use an RTS/CTS exchange * for directed frames only when the length of the MPDU is greater @@ -1847,11 +1854,6 @@ rt2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0, sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT; - /* - * IEEE Std 802.11-1999: "when an RTS/CTS exchange is used, the - * asynchronous data frame shall be transmitted after the CTS - * frame and a SIFS period". - */ flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS; } diff --git a/sys/dev/ic/rt2661.c b/sys/dev/ic/rt2661.c index f9cce6bfd30..5603be2ab1a 100644 --- a/sys/dev/ic/rt2661.c +++ b/sys/dev/ic/rt2661.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rt2661.c,v 1.21 2006/06/14 19:31:47 damien Exp $ */ +/* $OpenBSD: rt2661.c,v 1.22 2006/06/18 12:32:46 damien Exp $ */ /*- * Copyright (c) 2006 @@ -1614,6 +1614,13 @@ rt2661_tx_data(struct rt2661_softc *sc, struct mbuf *m0, wh = mtod(m0, struct ieee80211_frame *); } + /* + * Packet Bursting: backoff after ppb=8 frames to give other STAs a + * chance to contend for the wireless medium. + */ + if (ic->ic_opmode == IEEE80211_M_STA && (ni->ni_txseq & 7)) + flags |= RT2661_TX_IFS_SIFS; + /*- * IEEE Std 802.11-1999, pp 82: "A STA shall use an RTS/CTS exchange * for directed frames only when the length of the MPDU is greater @@ -1682,11 +1689,6 @@ rt2661_tx_data(struct rt2661_softc *sc, struct mbuf *m0, txq->queued++; txq->cur = (txq->cur + 1) % RT2661_TX_RING_COUNT; - /* - * IEEE Std 802.11-1999: "when an RTS/CTS exchange is used, the - * asynchronous data frame shall be transmitted after the CTS - * frame and a SIFS period". - */ flags |= RT2661_TX_LONG_RETRY | RT2661_TX_IFS_SIFS; } |